CN204610967U - A kind of agricultural machinery ceding of Taiwan switching valve - Google Patents
A kind of agricultural machinery ceding of Taiwan switching valve Download PDFInfo
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- CN204610967U CN204610967U CN201520287810.XU CN201520287810U CN204610967U CN 204610967 U CN204610967 U CN 204610967U CN 201520287810 U CN201520287810 U CN 201520287810U CN 204610967 U CN204610967 U CN 204610967U
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Abstract
The utility model provides a kind of agricultural machinery ceding of Taiwan switching valve, belongs to technical field of hydraulic pressure.It solve the problem of stem position in how reasonable Arrangement agricultural machinery ceding of Taiwan switching valve.The valve body of this agricultural machinery ceding of Taiwan switching valve has the filler opening one communicated with lifting valve pocket, return opening one and lifting work mouth, valve body also has and the left-hand rotation working hole turning to valve pocket to communicate, right-hand rotation working hole, steering cylinder return opening, filler opening two and return opening two, return opening one, return opening two is communicated with return opening by drainback passage, filler opening one is communicated with filler opening by oil inlet passage one, filler opening two is communicated with filler opening one by oil inlet passage two, turn to valve pocket and lifting valve pocket in be respectively equipped be parallel to each other turn to valve rod and lifting valve rod, lifting valve rod can slide along lifting valve pocket and lifting work mouth is connected with filler opening one or return opening one, turn to valve rod filler opening two can be selected and left-hand rotation working hole along turning to valve pocket to slide, right-hand rotation working hole or steering cylinder return opening communicate.
Description
Technical field
The utility model belongs to technical field of hydraulic pressure, relates to a kind of valve, particularly a kind of agricultural machinery ceding of Taiwan switching valve.
Background technique
Grain combine is called for short combine-harvester, gather in the combination machine of crops exactly, be referred to as combine at the beginning of the fifties, be the operation such as harvesting, threshing, separation cane, the assorted excess of removing that once can complete cereal crops, directly obtain the harvest machinery of grain from field.
In prior art, the taiwan cut off and landing of combine-harvester and steering control valve generally adopt ceding of Taiwan the steering gear control valve, as Chinese patent [application number: 200820120050.3, Authorization Notice No.: CN201218248Y] disclose a kind of Multifunctional integration composite valve, in valve body, low pressure relief valve is installed, high-pressure overflow valve, turn to guiding valve, lifting guiding valve and Pilot operated check valve, the each end face of valve body offers the harvester header oil hydraulic cylinder interface be connected with Pilot operated check valve, the interface of the reaper hydraulic steering cylinder be communicated with day is cut with turning to guiding valve, the interface be connected with reaper hydraulic steering cylinder return opening, and the valve body oil sump tank interface to be connected with above-mentioned each valve, also diverter valve is installed in this valve body, diverter valve is respectively by the technique oil duct in valve body and low pressure relief valve, high-pressure overflow valve, turn to guiding valve, lifting guiding valve is connected with valve body filler opening.This Multifunctional integration composite valve makes combine harvester cutting table and complete machine can perform lifting and steering operation respectively, can perform again lifting and steering operation simultaneously, improve the operating efficiency of combine-harvester.
But above-mentioned Multifunctional integration composite valve also also existing following defect: because the lifting guiding valve of combination valve becomes vertical distribution with turning to guiding valve in valve body, making valve body boundary dimension become large, causing cost of production to increase, strengthen installation difficulty again.Meanwhile, due to two valve rod vertical distribution, cause valve rod to have idle stroke, often make to turn to valve rod can not good return, cause reaper rotation phenomenon.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of agricultural machinery ceding of Taiwan switching valve, and the technical problem that the utility model solves is the position of how valve rod in reasonable Arrangement agricultural machinery ceding of Taiwan switching valve.
The purpose of this utility model realizes by following technical proposal: a kind of agricultural machinery ceding of Taiwan switching valve, comprise valve body, what be positioned at valve body turns to valve pocket and lifting valve pocket, described valve body have filler opening and return opening, described valve body has the filler opening one be connected with lifting valve pocket, return opening one and lifting work mouth, described valve body also has and the left-hand rotation working hole turning to valve pocket to be connected, right-hand rotation working hole, steering cylinder return opening, filler opening two and return opening two, described return opening one, return opening two is communicated with return opening by drainback passage, described filler opening one is communicated with filler opening by oil inlet passage one, described filler opening two is communicated with filler opening one by oil inlet passage two, it is characterized in that, described turn to valve pocket and lifting valve pocket in be respectively arranged be parallel to each other turn to valve rod and lifting valve rod, described lifting valve rod can slide along lifting valve pocket and lifting work mouth is connected with filler opening one or return opening one, the described valve rod that turns to can make filler opening two select and left-hand rotation working hole along turning to valve pocket to slide, right-hand rotation working hole or steering cylinder return opening are connected.
Be different from prior art, turn to valve pocket and lifting valve pocket in this agricultural machinery ceding of Taiwan switching valve are arranged in parallel in valve body, corresponding turning to valve rod and be elevated valve rod is also arranged in parallel, therefore, by the position of reasonable Arrangement valve pocket and valve rod, make the structure of valve body compacter, be conducive to the volume reducing valve body; Meanwhile, because two valve rods be arranged in parallel, make operating handle arrange simple and can accomplish that zero clearance is arranged, thus make the ceding of Taiwan there will not be rotation phenomenon.
In above-mentioned agricultural machinery ceding of Taiwan switching valve, there is in described valve body the oil outlet one, oil outlet two and the oil outlet three that are connected with lifting valve pocket, described lifting valve rod has oil duct, radial direction runs through the lifting oil inlet hole one of valve rod and oil inlet hole two, described oil inlet hole one is connected with oil inlet hole two-way oil channel, described lifting valve rod can slide along lifting valve pocket and filler opening one is communicated with oil outlet one, oil outlet two or oil outlet three by oil duct, and described oil outlet three is connected by oil inlet passage two with filler opening two.Oil inlet hole one and oil inlet hole two play logical oil effect when being elevated valve rod and being positioned at neutral position.
In above-mentioned agricultural machinery ceding of Taiwan switching valve, when described lifting valve rod is positioned at neutral position, described filler opening one and oil outlet three communicate; When described lifting valve rod is moved to the left, described filler opening one and oil outlet one communicate, and described oil outlet two and oil outlet threeway oil channel communicate; When described lifting valve rod moves right, described filler opening one and oil outlet two communicate, and described oil outlet one communicates with return opening one.
In above-mentioned agricultural machinery ceding of Taiwan switching valve, be provided with unidirectional valve pocket in described valve body and control valve pocket, the nonreturn valve core being provided with one-way valve seat in described unidirectional valve pocket and being movably connected in by spring in one-way valve seat, described one-way valve seat has the via hole that lifting work mouth is connected with oil outlet one, described nonreturn valve core can block via hole under spring force; Be provided with hydraulic control spool in described control valve pocket, described control valve pocket is connected with oil outlet two, and described hydraulic control spool has push rod near one end of nonreturn valve core, and described hydraulic control spool can slide along control valve pocket and make push rod promote nonreturn valve core disengaging via hole.
When the agricultural machinery ceding of Taiwan is risen, lifting valve rod moves to left position, and fluid in oil inlet passage one arrives oil-through hole one, and backs down nonreturn valve core and enter in unidirectional valve pocket, and the fluid in unidirectional valve pocket arrives ceding of Taiwan oil hydraulic cylinder by lifting work mouth, thus drives the ceding of Taiwan to rise; When the actuator of agricultural machinery keeps highly, lifting valve rod is positioned at meta, and nonreturn valve core blocks via hole, and fluid cannot reflux, and achieves the zero leakage of fluid, and the actuator of the agricultural machinery made highly remains constant.When the actuator of agricultural machinery declines, lifting valve rod moves to right position, and the fluid in oil inlet passage one enters and controls in valve pocket and drive hydraulic valve core to slide, and the push rod on hydraulic valve core promotes nonreturn valve core and departs from via hole, make the fluid passing hole oil return in ceding of Taiwan oil hydraulic cylinder, thus the ceding of Taiwan is declined.
In above-mentioned agricultural machinery ceding of Taiwan switching valve, described in when turning to valve rod to be positioned at neutral position, described left-hand rotation working hole, right-hand rotation working hole, steering cylinder return opening, filler opening two are all communicated with return opening two; Described when turning to valve rod to slide to the right, described filler opening two is connected with right-hand rotation working hole, and described left-hand rotation working hole is connected with drainback passage; Described when turning to valve rod to slide left, described filler opening two is connected with left-hand rotation working hole, and described right-hand rotation working hole is connected with drainback passage.When turn to guiding valve move right half stroke time, the ceding of Taiwan large turning to the right can be realized; When turn to guiding valve move right whole stroke time, the zig zag of the ceding of Taiwan can be realized; And turn to guiding valve to be moved to the left stroke and can to realize when position shift motion is the same turning to the right left.
In above-mentioned agricultural machinery ceding of Taiwan switching valve, high-voltage safety valve pocket and low-voltage safety valve pocket is provided with in described valve body, high-pressure safety valve is provided with in described high-voltage safety valve pocket, described high-pressure safety valve is connected between oil inlet passage one and drainback passage, low-pressure safety valve is provided with in described low-voltage safety valve pocket, described low-pressure safety valve is connected between oil inlet passage two and drainback passage, and described high-pressure safety valve and low-pressure safety valve are set in parallel on the same face of valve body.Adopt high-pressure safety valve and low-pressure safety valve, make hydraulic system pressure regulation precisely, pressure stability, and the arrangement of two safety valves makes valve body compacter, is conducive to reducing valve volume.
In above-mentioned agricultural machinery ceding of Taiwan switching valve, described in turn to valve rod to stretch out valve body respectively with the two ends of lifting valve rod and to stretch out the length of valve body part identical.The length that valve rod stretches out valve body is consistent, makes valve body compacter, is conducive to the volume reducing valve body.
In above-mentioned agricultural machinery ceding of Taiwan switching valve, the described one end of valve rod and lifting valve rod that turns to has connecting end one for attended operation bar and connecting end two respectively, described connecting end one and connecting end two all stretch out valve body, and described connecting end one is identical with the length of connecting end two.Connecting end one is consistent with the length of connecting end two, makes the structure of valve body compacter.
Compared with prior art, this agricultural machinery ceding of Taiwan switching valve has the following advantages: be elevated valve-rod cavity by reasonable Arrangement in valve body and turn to valve-rod cavity, make lifting valve rod and turn to valve rod to be parallel to each other, making the structure of valve body compacter, being conducive to the volume reducing valve body; Meanwhile, the length that two valve rods stretch out valve body part is identical and parallel, and the installation of easy-to-operat bar and layout, avoid the ceding of Taiwan to occur rotation phenomenon.
Accompanying drawing explanation
Fig. 1 is the structural representation in this agricultural machinery ceding of Taiwan switching valve direction.
Fig. 2 is another direction structure schematic diagram of this agricultural machinery ceding of Taiwan switching valve.
Fig. 3 is the structural representation in this agricultural machinery ceding of Taiwan switching valve the 3rd direction.
Fig. 4 is the structural representation of this agricultural machinery ceding of Taiwan switching valve four direction.
Fig. 5 is the structure sectional view at A-A place in Fig. 2.
Fig. 6 is the structure sectional view at B-B place in Fig. 2.
Fig. 7 is the structure sectional view at C-C place in Fig. 2.
Fig. 8 is the hydraulic schematic diagram of this agricultural machinery ceding of Taiwan switching valve.
In figure, 1, valve body; 2, valve pocket is turned to; 3, valve pocket is elevated; 4, filler opening; 5, return opening; 6, filler opening one; 7, return opening one; 8, lifting work mouth; 9, left-hand rotation working hole; 10, right-hand rotation working hole; 11, steering cylinder return opening; 12, filler opening two; 13, return opening two; 14, drainback passage; 15, oil inlet passage one; 16, oil inlet passage two; 17, valve rod is turned to; 17a, connecting end one; 18, valve rod is elevated; 18a, connecting end two; 19, oil outlet one; 20, oil outlet two; 21, oil outlet three; 22, oil duct; 23, oil inlet hole one; 24, oil inlet hole two; 25, unidirectional valve pocket; 26, valve pocket is controlled; 27, one-way valve seat; 28, spring; 29, nonreturn valve core; 30, hydraulic control spool; 31, push rod; 32, high-voltage safety valve pocket; 33, low-voltage safety valve pocket; 34, high-pressure safety valve; 35, low-pressure safety valve; 36, via hole.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
This agricultural machinery ceding of Taiwan switching valve comprises valve body 1, turn to valve pocket 2, lifting valve pocket 3, filler opening 4, return opening 5, filler opening 1, return opening 1, lifting work mouth 8, left-hand rotation working hole 9, right-hand rotation working hole 10, steering cylinder return opening 11, filler opening 2 12, return opening 2 13, drainback passage 14, oil inlet passage 1, oil inlet passage 2 16, turn to valve rod 17, connecting end one 17a, lifting valve rod 18, connecting end two 18a, oil outlet 1, oil outlet 2 20, oil outlet 3 21, oil duct 22, oil inlet hole 1, oil inlet hole 2 24, unidirectional valve pocket 25, control valve pocket 26, one-way valve seat 27, spring 28, nonreturn valve core 29, hydraulic control spool 30, push rod 31, high-voltage safety valve pocket 32, low-voltage safety valve pocket 33, high-pressure safety valve 34, low-pressure safety valve 35, via hole 36.
Specifically, as shown in Figures 1 to 5, this agricultural machinery ceding of Taiwan switching valve comprises valve body 1, is positioned at turning to valve pocket 2 and being elevated valve pocket 3 of valve body 1.Valve body 1 have filler opening 4 and return opening 5, valve body 1 has the filler opening 1, return opening 1 and the lifting work mouth 8 that are connected with lifting valve pocket 3, valve body 1 also has and the left-hand rotation working hole 9 turning to valve pocket 2 to be connected, right-hand rotation working hole 10, steering cylinder return opening 11, filler opening 2 12 and return opening 2 13.Return opening 1, return opening 2 13 are communicated with return opening 5 by drainback passage 14, and filler opening 1 is communicated with filler opening 4 by oil inlet passage 1, and filler opening 2 12 is communicated with filler opening 1 by oil inlet passage 2 16.Turn in valve pocket 2 and lifting valve pocket 3 be respectively arranged be parallel to each other turn to valve rod 17 and lifting valve rod 18, valve body 1 is stretched out at the two ends turning to valve rod 17 and be elevated valve rod 18 respectively and to stretch out the length of valve body 1 part identical.Turn to one end of valve rod 17 and lifting valve rod 18 to have respectively and all stretch out valve body 1 for connecting end one 17a of attended operation bar and connecting end two 18a, connecting end one 17a and connecting end two 18a, connecting end one 17a is identical with the length of connecting end two 18a.
Also there is in valve body 1 oil outlet 1, oil outlet 2 20 and the oil outlet 3 21 that are connected with lifting valve pocket 3, lifting valve rod 18 has oil duct 22, radial direction runs through the lifting oil inlet hole 1 of valve rod 18 and oil inlet hole 2 24, oil inlet hole 1 is connected by oil duct 22 with oil inlet hole 2 24, when lifting valve rod 18 is positioned at neutral position, filler opening 1 and oil outlet 3 21 communicate; When lifting valve rod 18 is positioned at left position, filler opening 1 and oil outlet 1 communicate, and oil outlet 2 20 and oil outlet 3 21 are communicated by oil duct 22; When lifting valve rod 18 is positioned at right position, filler opening 1 and oil outlet 2 20 communicate, and oil outlet 1 communicates with return opening 1.
As shown in Figure 5, also be provided with unidirectional valve pocket 25 in valve body 1 and control valve pocket 26, be provided with one-way valve seat 27 in unidirectional valve pocket 25 and be movably connected in the nonreturn valve core 29 in one-way valve seat 27 by spring 28, one-way valve seat 27 has the via hole 36 that lifting work mouth 8 is connected with oil outlet 1, nonreturn valve core 29 can block via hole 36 under the effect of spring 28 power; Control to be provided with hydraulic control spool 30 in valve pocket 26, control valve pocket 26 to be connected with oil outlet 2 20, hydraulic control spool 30 has push rod 31 near one end of nonreturn valve core 29, and hydraulic control spool 30 can slide along control valve pocket 26 and make push rod 31 promote nonreturn valve core 29 to depart from via hole 36.
As shown in Figure 6, when turning to valve rod 17 to be positioned at neutral position, left-hand rotation working hole 9, right-hand rotation working hole 10, steering cylinder return opening 11, filler opening 2 12 are all communicated with return opening 2 13; When turning to valve rod 17 to slide to the right, filler opening 2 12 is connected with right-hand rotation working hole 10, and left-hand rotation working hole 9 is connected with drainback passage 14; When turning to valve rod 17 to slide left, filler opening 2 12 is connected with left-hand rotation working hole 9, and right-hand rotation working hole 10 is connected with drainback passage 14.
As shown in Figure 7, high-voltage safety valve pocket 32 and low-voltage safety valve pocket 33 is provided with in valve body 1, high-pressure safety valve 34 is provided with in high-voltage safety valve pocket 32, high-pressure safety valve 34 is connected between oil inlet passage 1 and drainback passage 14, low-pressure safety valve 35 is provided with in low-voltage safety valve pocket 33, low-pressure safety valve 35 is connected between oil inlet passage 2 16 and drainback passage 14, and high-pressure safety valve 34 and low-pressure safety valve 35 are set in parallel on the same face of valve body 1.
The hydraulic schematic diagram of this agricultural machinery ceding of Taiwan switching valve as shown in Figure 8, specific works process is as follows: when being elevated valve rod 18 and getting to left position, fluid flow into lifting work mouth 8 through filler opening 4, filler opening 1, oil inlet hole 1, oil outlet 1, via hole 36, now nonreturn valve core 29 is opened, and vertical motion is carried out in the agricultural machinery ceding of Taiwan; When being elevated valve rod 18 and getting to middle position, now nonreturn valve core 29 is closed as ceding of Taiwan work pressurize, and agricultural machinery ceding of Taiwan holding position is motionless; When being elevated valve rod 18 and getting to right position, fluid flow into control valve pocket 26 through filler opening 4, filler opening 1, oil inlet hole 1, oil outlet 2 20, promote hydraulic valve core and back down nonreturn valve core 29, fluid in the ceding of Taiwan is back to fuel tank through lifting work mouth 8, via hole 36, oil outlet 1, return opening 1, return opening 5, and down maneuver is carried out in the agricultural machinery ceding of Taiwan.
When turning to valve rod 17 to get to left position, fluid flows to right-hand rotation working hole 10 through filler opening 2 12, and the working hole 9 that turns left now communicates with return opening 2 13, and right-hand rotation action is carried out in the agricultural machinery ceding of Taiwan; When turning to valve rod 17 to get to right position, fluid flows to left-hand rotation working hole 9 through filler opening 2 12, and working hole 10 of turning right now communicates with return opening 2 13, and left-hand rotation action is carried out in the agricultural machinery ceding of Taiwan.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ valve body 1 herein, turn to valve pocket 2, lifting valve pocket 3, filler opening 4, return opening 5, filler opening 1, return opening 1, lifting work mouth 8, left-hand rotation working hole 9, right-hand rotation working hole 10, steering cylinder return opening 11, filler opening 2 12, return opening 2 13, drainback passage 14, oil inlet passage 1, oil inlet passage 2 16, turn to valve rod 17, connecting end one 17a, lifting valve rod 18, connecting end two 18a, oil outlet 1, oil outlet 2 20, oil outlet 3 21, oil duct 22, oil inlet hole 1, oil inlet hole 2 24, unidirectional valve pocket 25, control valve pocket 26, one-way valve seat 27, spring 28, nonreturn valve core 29, hydraulic control spool 30, push rod 31, high-voltage safety valve pocket 32, low-voltage safety valve pocket 33, high-pressure safety valve 34, low-pressure safety valve 35, term such as via hole 36 grade, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (8)
1. an agricultural machinery ceding of Taiwan switching valve, comprise valve body (1), what be positioned at valve body (1) turns to valve pocket (2) and lifting valve pocket (3), described valve body (1) have filler opening (4) and return opening (5), described valve body (1) has the filler opening one (6) be connected with lifting valve pocket (3), return opening one (7) and lifting work mouth (8), described valve body (1) also has and the left-hand rotation working hole (9) turning to valve pocket (2) to be connected, right-hand rotation working hole (10), steering cylinder return opening (11), filler opening two (12) and return opening two (13), described return opening one (7), return opening two (13) is communicated with return opening (5) by drainback passage (14), described filler opening one (6) is communicated with filler opening (4) by oil inlet passage one (15), described filler opening two (12) is communicated with filler opening one (6) by oil inlet passage two (16), it is characterized in that, described turn in valve pocket (2) and lifting valve pocket (3) be respectively arranged be parallel to each other turn to valve rod (17) and be elevated valve rod (18), described lifting valve rod (18) can be slided along lifting valve pocket (3) and lifting work mouth (8) is connected with filler opening one (6) or return opening one (7), the described valve rod (17) that turns to can make filler opening two (12) select and left-hand rotation working hole (9) along turning to valve pocket (2) to slide, right-hand rotation working hole (10) or steering cylinder return opening (11) are connected.
2. agricultural machinery ceding of Taiwan switching valve according to claim 1, it is characterized in that, there is in described valve body (1) oil outlet one (19) be connected with lifting valve pocket (3), oil outlet two (20) and oil outlet three (21), described lifting valve rod (18) has oil duct (22), radial direction runs through oil inlet hole one (23) and the oil inlet hole two (24) of lifting valve rod (18), described oil inlet hole one (23) is connected by oil duct (22) with oil inlet hole two (24), described lifting valve rod (18) can be slided along lifting valve pocket (3) and make filler opening one (6) by oil duct (22) and oil outlet one (19), oil outlet two (20) or oil outlet three (21) communicate, described oil outlet three (21) is connected by oil inlet passage two (16) with filler opening two (12).
3. agricultural machinery ceding of Taiwan switching valve according to claim 2, is characterized in that, when described lifting valve rod (18) is positioned at neutral position, described filler opening one (6) and oil outlet three (21) communicate; When described lifting valve rod (18) is moved to the left, described filler opening one (6) and oil outlet one (19) communicate, and described oil outlet two (20) and oil outlet three (21) are communicated by oil duct (22); When described lifting valve rod (18) moves right, described filler opening one (6) and oil outlet two (20) communicate, and described oil outlet one (19) communicates with return opening one (7).
4. the agricultural machinery ceding of Taiwan switching valve according to Claims 2 or 3, it is characterized in that, be provided with unidirectional valve pocket (25) in described valve body (1) and control valve pocket (26), be provided with one-way valve seat (27) in described unidirectional valve pocket (25) and be movably connected in the nonreturn valve core (29) in one-way valve seat (27) by spring (28), described one-way valve seat (27) has the via hole (36) that lifting work mouth (8) is connected with oil outlet one (19), described nonreturn valve core (29) can block via hole (36) under spring (28) power effect, hydraulic control spool (30) is provided with in described control valve pocket (26), described control valve pocket (26) is connected with oil outlet two (20), described hydraulic control spool (30) has push rod (31) near one end of nonreturn valve core (29), and described hydraulic control spool (30) can be slided along control valve pocket (26) and make push rod (31) promote nonreturn valve core (29) disengaging via hole (36).
5. the agricultural machinery ceding of Taiwan switching valve according to claim 1 or 2 or 3, it is characterized in that, described when turning to valve rod (17) to be positioned at neutral position, described left-hand rotation working hole (9), right-hand rotation working hole (10), steering cylinder return opening (11), filler opening two (12) are all communicated with return opening two (13); Described when turning to valve rod (17) to slide to the right, described filler opening two (12) is connected with right-hand rotation working hole (10), and described left-hand rotation working hole (9) is connected with drainback passage (14); Described when turning to valve rod (17) to slide left, described filler opening two (12) is connected with left-hand rotation working hole (9), and described right-hand rotation working hole (10) is connected with drainback passage (14).
6. the agricultural machinery ceding of Taiwan switching valve according to claim 1 or 2 or 3, it is characterized in that, high-voltage safety valve pocket (32) and low-voltage safety valve pocket (33) is provided with in described valve body (1), high-pressure safety valve (34) is provided with in described high-voltage safety valve pocket (32), described high-pressure safety valve (34) is connected between oil inlet passage one (15) and drainback passage (14), low-pressure safety valve (35) is provided with in described low-voltage safety valve pocket (33), described low-pressure safety valve (35) is connected between oil inlet passage two (16) and drainback passage (14), described high-pressure safety valve (34) and low-pressure safety valve (35) are set in parallel on the same face of valve body (1).
7. the agricultural machinery ceding of Taiwan switching valve according to claim 1 or 2 or 3, it is characterized in that, described in turn to valve rod (17) with lifting valve rod (18) two ends stretch out valve body (1) respectively and stretch out valve body (1) part length identical.
8. the agricultural machinery ceding of Taiwan switching valve according to claim 1 or 2 or 3, it is characterized in that, the described one end of valve rod (17) and lifting valve rod (18) that turns to has connecting end one (17a) for attended operation bar and connecting end two (18a) respectively, described connecting end one (17a) and connecting end two (18a) all stretch out valve body (1), and described connecting end one (17a) is identical with the length of connecting end two (18a).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520287810.XU CN204610967U (en) | 2015-05-06 | 2015-05-06 | A kind of agricultural machinery ceding of Taiwan switching valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520287810.XU CN204610967U (en) | 2015-05-06 | 2015-05-06 | A kind of agricultural machinery ceding of Taiwan switching valve |
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| CN204610967U true CN204610967U (en) | 2015-09-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122134A (en) * | 2016-08-30 | 2016-11-16 | 浙江海宏液压科技股份有限公司 | A kind of hydraulic system of harvester |
| CN106194880A (en) * | 2016-08-30 | 2016-12-07 | 浙江海宏液压科技股份有限公司 | A kind of control valve group of harvester |
| CN107237903A (en) * | 2017-06-28 | 2017-10-10 | 盐城市大冈石油工具厂有限责任公司 | Many control flow dividers with pressure |
-
2015
- 2015-05-06 CN CN201520287810.XU patent/CN204610967U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122134A (en) * | 2016-08-30 | 2016-11-16 | 浙江海宏液压科技股份有限公司 | A kind of hydraulic system of harvester |
| CN106194880A (en) * | 2016-08-30 | 2016-12-07 | 浙江海宏液压科技股份有限公司 | A kind of control valve group of harvester |
| CN106194880B (en) * | 2016-08-30 | 2017-12-01 | 浙江海宏液压科技股份有限公司 | A kind of control valve group of harvester |
| CN107237903A (en) * | 2017-06-28 | 2017-10-10 | 盐城市大冈石油工具厂有限责任公司 | Many control flow dividers with pressure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |