CN204253478U - Miniature preferential series flow control valve - Google Patents
Miniature preferential series flow control valve Download PDFInfo
- Publication number
- CN204253478U CN204253478U CN201420676405.2U CN201420676405U CN204253478U CN 204253478 U CN204253478 U CN 204253478U CN 201420676405 U CN201420676405 U CN 201420676405U CN 204253478 U CN204253478 U CN 204253478U
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- Prior art keywords
- valve
- preferential
- oil outlet
- miniature
- control valve
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- 239000000945 filler Substances 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000000446 fuel Substances 0.000 abstract description 7
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 239000011230 binding agent Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 23
- 241000209094 Oryza Species 0.000 description 8
- 235000007164 Oryza sativa Nutrition 0.000 description 8
- 235000009566 rice Nutrition 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model discloses a kind of miniature preferential series flow control valve, comprise valve body, the filler opening be located on described valve body, return opening, oil outlet and preferential oil outlet, also comprise the relief valve being located at and described valve body is communicated with described preferential oil outlet and the spool valve of velocity modulation for controlling described oil outlet, preferentially oil outlet flow be located on described valve body.The utility model structure is simple, a gear pump fuel feeding can be utilized to carry out fuel feeding to two road binders of required control, and controlled by equilibrium valve, and the flow that balance control valve is stable can be ensured, this control valve can and valve that sensitivity higher little by rated flow be controlled, improve the sensitivity that its left-right balance controls, the maneuverability improving main frame also improves the free space of main frame greatly, achieves again energy-saving and cost-reducing effect.
Description
Technical field
The utility model relates to transplanter technical field, particularly a kind of miniature preferential series flow control valve for transplanter.
Background technique
Rice Production, as the country of Rice Production maximum in the world and consumption, is done a good job of it by China, has very important impact to the target realizing recovering and developing grain-production.Transplanter is one of main rice planting equipment, and its performance will directly affect quality and the speed of production of grain.
Paddy rice needs to use transplanter when sowing, transplanter comprises hand-held transplanter and high speed saddle type rice transplanter, the maximum shortcoming of hand-held transplanter is that labor intensity is large, also there is larger gap in working efficiency and high speed saddle type rice transplanter (hereinafter referred to as inserting at a high speed), this just determines China's transplanter market demand and will speed up and develop to high speed direction interpolation.And for high-speed transplanter, its rice transplanting line number is generally all more than 6 row, hand steered inserting is compared to for its rice transplanting dish and wants wide many, therefore the hydraulic control of upper and lower profiling is not only needed, and need left and right directions also to have control overflow parallel to the ground, in order to carry out the control of left and right directions, the form of what some domestic producers adopted now is duplex pump carries out fuel feeding, but, at 3 ~ 4 times that the price of China's duplex pump is common gear pump price, not only add cost but also add energy consumption and heavy burden.
Model utility content
The purpose of this utility model is to provide a kind of miniature preferential series flow control valve, the deficiencies in the prior art part can be overcome, its structure is simple, a gear pump fuel feeding can be utilized to carry out fuel feeding to two road binders of required control, and controlled by equilibrium valve, and the flow that balance control valve is stable can be ensured, this control valve can and valve that sensitivity higher little by rated flow be controlled, improve the sensitivity of the control of its left-right balance, the maneuverability improving main frame also improves the free space of main frame greatly, achieves again energy-saving and cost-reducing effect.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: miniature preferential series flow control valve, comprise valve body, the filler opening be located on described valve body, return opening, oil outlet and preferential oil outlet, also comprise the relief valve being located at and described valve body is communicated with described preferential oil outlet and the spool valve of velocity modulation for controlling described oil outlet, preferentially oil outlet flow be located on described valve body.
The miniature preferential series flow control valve of the application of claimant's research and development, a gear pump fuel feeding can be utilized to carry out fuel feeding to two road binders of required control, and the flow that left-right balance control valve is stable can be ensured, this control valve can and valve that sensitivity higher little by rated flow be controlled, improve the sensitivity of the control of its left-right balance, improve the maneuverability of main frame and improve the free space of main frame greatly, achieve again energy-saving and cost-reducing effect, its market development space is huge, and market prospects are very wide.
As preferably, described spool valve of velocity modulation comprises piston chamber, with the end screw that described piston chamber communicates, by the attachment hole that described piston chamber is communicated with described filler opening, be arranged on the valve pocket in described piston chamber, be screwed onto the end plug in the screw of described end, be arranged on the slide bar in described valve pocket, be arranged on the central through bore on described slide bar, be located at described central through bore away from the throttle on described end plug end, be provided with at the end through hole of described slide bar on the end of described end plug, be located at described slide bar and be provided with the protrusion baffle ring with described valve pocket contacts side surfaces near the end of described end plug, one end contacts with described protrusion baffle ring and the end spring that contacts with described end plug of the other end and be located on described slide bar and radial hole that described central through bore communicates.
As preferably, described valve pocket is axially provided with multiple seal ring.
As preferably, the outer peripheral surface of described slide bar is axially provided with multiple balancing slit.
As preferably, described throttle is spirally connected and is fixed on described central through bore.
As preferably, described relief valve comprises spool chamber, be fixed on the overflow spool that valve seat in spool chamber and described valve seat coordinate, the plug screw being screwed onto described spool chamber end, the cavity be located in described plug screw, Spielpassung are located at sliding piston in described cavity, be located at the overflow spring between described sliding piston and described overflow spool and be screwed onto the adjusting screw rod that described plug screw contacts with described sliding piston.
As preferably, described valve seat is provided with pilot hole, described overflow spool is fixed with the guide piston of Spielpassung in described pilot hole.
As preferably, described sliding piston outer peripheral surface is provided with seal ring.
In sum, the utility model has following beneficial effect:
The utility model adopts and is provided with spool valve of velocity modulation, the shunting of this spool valve of velocity modulation band and performance of making up the difference, ensure that priority port output flow does not change with input flow rate, achieve the performance that preferential oil outlet output flow is stable, simultaneously, add safety overflow valve at preferential oil outlet, achieve the function of limit priority oil outlet delivery pressure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 is the schematic top plan view in Fig. 1
Fig. 3 is the A-A sectional view in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this specification, as long as but be all subject to the protection of Patent Law in right of the present utility model.
Embodiment: as shown in Figure 1, 2, 3, miniature preferential series flow control valve, comprise valve body 1, the oil inlet P be located on described valve body 1, oil return inlet T, oil outlet U and preferential oil outlet H, also comprise the relief valve 2 being located at and described valve body 1 is communicated with described preferential oil outlet H and the spool valve of velocity modulation 3 for controlling described oil outlet U, preferentially oil outlet H flow be located on described valve body 1; Spool valve of velocity modulation 3 is divided into two parts by by filler opening hydraulic oil out, then flows out via oil outlet U and preferential oil outlet H, controls the flow of oil outlet U and preferential oil outlet H simultaneously; Relief valve is used for controlling the oil pressure of preferential oil outlet, ensures the pressure of preferential oil outlet.
Described spool valve of velocity modulation 3 comprises piston chamber 301, with the end screw 302 that described piston chamber 301 communicates, by the attachment hole 303 that described piston chamber 301 is communicated with described oil inlet P, be arranged on the valve pocket 304 in described piston chamber 301, be screwed onto the end plug 305 in described end screw 302, be arranged on the slide bar 306 in described valve pocket 304, be arranged on the central through bore 307 on described slide bar 306, be located at described central through bore 307 away from the throttle 308 on described end plug 305 end, be provided with at the end through hole 309 of described slide bar 306 on the end of described end plug 305, be located at described slide bar 306 and be provided with the protrusion baffle ring 310 with described valve pocket contacts side surfaces near the end of described end plug 305, one end contacts with described protrusion baffle ring 310 and the end spring 311 that contacts with described end plug 305 of the other end and be located on described slide bar 306 and radial hole 312 that described central through bore 307 communicates, valve body 304 is fixed in piston chamber, its outer peripheral surface is axially provided with multiple seal ring 313, seal ring is O type circle, end plug is screwed onto in the screw of end, and sealed by O shape circle, and one end contacts with valve pocket, carry out spacing to valve pocket, slide bar Spielpassung be arranged in valve pocket, can slide in the hole of sliding sleeve, throttle is screwed onto the end of central through bore, and this end is provided with tapped hole, in addition, the outer peripheral surface of described slide bar 306 is axially provided with multiple balancing slit 314.
Described relief valve 2 comprises spool chamber 201, be fixed on the valve seat 202 in spool chamber 201, with the overflow spool 203 that described valve seat 202 coordinates, be screwed onto the plug screw 204 of described spool chamber 201 end, be located at the cavity 205 in described plug screw 204, Spielpassung is located at the sliding piston 206 in described cavity 205, be located at the overflow spring 207 between described sliding piston 206 and described overflow spool 203 and be screwed onto the adjusting screw rod 208 that described plug screw 204 contacts with described sliding piston 206, the cracking pressure of regulation relief valve is carried out by adjusting screw rod, described valve seat 202 is provided with pilot hole 209, described overflow spool 203 is fixed with the guide piston 210 of Spielpassung in described pilot hole 209, described sliding piston 206 outer peripheral surface is provided with seal ring.
Claims (8)
1. miniature preferential series flow control valve, it is characterized in that: comprise valve body (1), the filler opening (P) be located on described valve body (1), return opening (T), oil outlet (U) and preferential oil outlet (H), also comprise and be located at the upper relief valve (2) be communicated with described preferential oil outlet (H) of described valve body (1) and the spool valve of velocity modulation (3) for controlling described oil outlet (U), preferentially oil outlet (H) flow be located on described valve body (1).
2. miniature preferential series flow control valve according to claim 1, it is characterized in that: described spool valve of velocity modulation (3) comprises piston chamber (301), with the end screw (302) that described piston chamber (301) communicates, by the attachment hole (303) that described piston chamber (301) is communicated with described filler opening (P), be arranged on the valve pocket (304) in described piston chamber (301), be screwed onto the end plug (305) in described end screw (302), be arranged on the slide bar (306) in described valve pocket (304), be arranged on the central through bore (307) on described slide bar (306), be located at described central through bore (307) away from the throttle (308) on described end plug (305) end, be provided with at the end through hole (309) of described slide bar (306) on the end of described end plug (305), be located at described slide bar (306) and be provided with the protrusion baffle ring (310) with described valve pocket contacts side surfaces near the end of described end plug (305), one end contacts with described protrusion baffle ring (310) and the end spring (311) that contacts with described end plug (305) of the other end and be located at the radial hole (312) that the upper and described central through bore (307) of described slide bar (306) communicates.
3. miniature preferential series flow control valve according to claim 2, is characterized in that: described valve pocket (304) is axially provided with multiple seal ring (313).
4. miniature preferential series flow control valve according to claim 2, is characterized in that: the outer peripheral surface of described slide bar (306) is axially provided with multiple balancing slit (314).
5. miniature preferential series flow control valve according to claim 2, is characterized in that: described throttle (308) is spirally connected and is fixed on described central through bore (307).
6. the miniature preferential series flow control valve according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that: described relief valve (2) comprises spool chamber (201), be fixed on the valve seat (202) in spool chamber (201), with the overflow spool (203) that described valve seat (202) coordinates, be screwed onto the plug screw (204) of described spool chamber (201) end, be located at the cavity (205) in described plug screw (204), Spielpassung is located at the sliding piston (206) in described cavity (205), be located at the overflow spring (207) between described sliding piston (206) and described overflow spool (203) and be screwed onto the upper adjusting screw rod (208) contacted with described sliding piston (206) of described plug screw (204).
7. miniature preferential series flow control valve according to claim 6, is characterized in that: described valve seat (202) is provided with pilot hole (209), described overflow spool (203) is fixed with the guide piston (210) of Spielpassung in described pilot hole (209).
8. miniature preferential series flow control valve according to claim 6, is characterized in that: described sliding piston (206) outer peripheral surface is provided with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676405.2U CN204253478U (en) | 2014-11-13 | 2014-11-13 | Miniature preferential series flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676405.2U CN204253478U (en) | 2014-11-13 | 2014-11-13 | Miniature preferential series flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253478U true CN204253478U (en) | 2015-04-08 |
Family
ID=52957791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420676405.2U Active CN204253478U (en) | 2014-11-13 | 2014-11-13 | Miniature preferential series flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253478U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370651A (en) * | 2015-11-26 | 2016-03-02 | 南通爱慕希机械股份有限公司 | High-pressure oil circuit manifold block |
| CN106351901A (en) * | 2016-08-31 | 2017-01-25 | 北京精密机电控制设备研究所 | Constant flow control valve composed of damping network and two stages slide valves |
| CN109812365A (en) * | 2019-03-19 | 2019-05-28 | 重庆红江机械有限责任公司 | A kind of marine low-speed mechanical electronic hydraulic control oil inlet proportioning valve |
| CN111997956A (en) * | 2020-08-13 | 2020-11-27 | 邵延荣 | Hydraulic speed regulating valve |
-
2014
- 2014-11-13 CN CN201420676405.2U patent/CN204253478U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370651A (en) * | 2015-11-26 | 2016-03-02 | 南通爱慕希机械股份有限公司 | High-pressure oil circuit manifold block |
| CN106351901A (en) * | 2016-08-31 | 2017-01-25 | 北京精密机电控制设备研究所 | Constant flow control valve composed of damping network and two stages slide valves |
| CN109812365A (en) * | 2019-03-19 | 2019-05-28 | 重庆红江机械有限责任公司 | A kind of marine low-speed mechanical electronic hydraulic control oil inlet proportioning valve |
| CN109812365B (en) * | 2019-03-19 | 2024-01-19 | 重庆红江机械有限责任公司 | Marine low-speed electromechanical hydraulic control oil inlet proportional valve |
| CN111997956A (en) * | 2020-08-13 | 2020-11-27 | 邵延荣 | Hydraulic speed regulating valve |
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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: Zhejiang Hulian New Energy Industry Technology Service Co.,Ltd. Assignor: HUZHOU SHENGLI HYDRAULIC Co.,Ltd. Contract record no.: X2023330000890 Denomination of utility model: Micro priority speed control valve Granted publication date: 20150408 License type: Common License Record date: 20231208 |
|
| EE01 | Entry into force of recordation of patent licensing contract |