CN203413166U - Pressure-regulating mechanism of overflow channel of one-rod maneuvering valve - Google Patents
Pressure-regulating mechanism of overflow channel of one-rod maneuvering valve Download PDFInfo
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- CN203413166U CN203413166U CN201320473243.8U CN201320473243U CN203413166U CN 203413166 U CN203413166 U CN 203413166U CN 201320473243 U CN201320473243 U CN 201320473243U CN 203413166 U CN203413166 U CN 203413166U
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Abstract
The utility model provides a pressure-regulating mechanism of an overflow channel of a one-rod maneuvering valve, belonging to the technical field of agricultural mechanical equipment and solving the problem that an existing pressure regulating mode of the one-rod maneuvering valve is not convenient to use in the hands of a user. The pressure-regulating mechanism comprises is characterized in that a pressure relief channel communicated with a fuel tank is arranged on a valve body, the pressure relief channel is communicated with a fuel outlet channel, a core bar is arranged between the pressure relief channel and the fuel outlet channel, the conical head of the core bar supports against the interior of the fuel outlet channel, the other end of the core bar is just opposite to a pressure-regulating valve cover connected to the valve body, a spring seat and an adjusting screw abutting against the spring seat are arranged in the pressure-regulating valve cover, the other end of the adjusting screw extends out of the pressure-regulating valve cover, a spring is arranged between the core bar and the spring seat, one end of the spring abuts against the core bar, and the other end of the spring abuts against the spring seat. The pressure-regulating mechanism of the overflow channel of the one-rod maneuvering valve has a simple structure and is convenient to operate.
Description
Technical field
The utility model belongs to agricultural machinery equipment technical field, relates to a kind of pressure regulating mechanism of a lever operation valve overflow ducts.
Background technique
Thing combine-harvester is called for short combine-harvester, gathers in exactly the combination machine of crops, is harvesting, threshing, the separated cane that can once complete cereal crops, removes the operations such as assorted excess, directly obtains the harvest machinery of grain from field.
Before combine-harvester does not occur; threshing machine and these apparatuses of mechanical harvesting machine; agricultural productivity while greatly improving for 19th century; this makes to use and than few in the past workman, removes to gather in more cereal and become possibility, but an invention of 19 th century later has further improved this efficiency; combine-harvester is combined in one whole harvesting and threshing machine; make peasant go harvesting and threshing with single operation, thereby saved manpower and materials, greatly alleviated peasant's burden.
Combine-harvester is that in farm machinery, structure is the most complicated, scientific and technological content is higher, and manufacturing technology level requires very tight product.In combine-harvester, generally all by a bar driven valve, control the cutting of combine-harvester, threshing, separated, the running of the operation mechanisms such as unloading, in an existing bar driven valve safe pressure relief device, generally comprise on a bar driven valve valve body and offer pressure release passage, on pressure release passage, be provided with split type spool one and spool two, described spool one abuts against the oil outlet place of pressure release passage, spool two is positioned on the spring seat of valve interior wall, between valve body one and valve body two, be provided with the spring that energy spool one abuts against the oil outlet place of above-mentioned pressure release passage under certain pressure, on valve body wall, be also fixedly bolted with valve gap, above-mentioned spring seat is arranged in described valve gap.For different environment, the force value of setting in pressure release passage is different, and force value in setting pressure release passage is to change the force value of setting by changing the axial distance of spring, in above-mentioned structure, people need to open valve gap while needing to change the force value of setting, and between spring one end and spring seat, shell tool is realized the function of pressure regulation, with pad, carry out pressure regulation, to the bad control of pressure regulating, after adjusting, sometimes pressure is too much, and sometimes pressure is inadequate; Above-mentioned this voltage regulating mode is used very inconvenient in client's hand, when opening valve gap, can cause dirt to fall in valve body, the stuck valve rod of meeting when serious, and leakage rate is large, and loading can not promote, and also has degradation series of problems under loading.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, does not need to open valve gap while having proposed a kind of pressure regulation, and pressure regulation is the pressure regulating mechanism of a lever operation valve overflow ducts easily.
The purpose of this utility model can realize by following technical proposal: a kind of pressure regulating mechanism of a lever operation valve overflow ducts, this lever operation valve comprises valve body, on valve body, offer oil inlet passage and oil discharge passage, on valve body, be provided with the valve rod that makes above-mentioned oil inlet passage and oil discharge passage be communicated with or block, this pressure regulating mechanism is included in and on valve body, also offers a pressure release passage being connected with fuel tank, described pressure release passage and oil discharge passage are connected, between pressure release passage and oil discharge passage, be provided with core bar, the coniform head of core bar contacts in above-mentioned oil discharge passage, the other end of this core bar faces the pressure regulation valve gap being connected on valve body, the adjusting screw rod that is provided with spring seat and leans with spring seat in pressure regulation valve gap, the described adjusting screw rod the other end stretches out above-mentioned pressure regulation valve gap, between above-mentioned core bar and spring seat, be provided with spring, one end of described spring abuts against above-mentioned core bar, the other end of this spring abuts against spring seat.
In the pressure regulating mechanism of an above-mentioned a kind of lever operation valve overflow ducts, described core bar also comprises the locating column being positioned on coniform head bottom surface, the locating column of described core bar is located in a guide sleeve, above-mentioned spring one end by guide sleeve against this above-mentioned core bar.
In the pressure regulating mechanism of an above-mentioned a kind of lever operation valve overflow ducts, described pressure regulation valve gap spiral is fixed on above-mentioned valve body, in pressure regulation valve gap, offer a blind hole, above-mentioned spring seat is arranged in described blind hole, in blind hole bottom, offer the penetration hole being connected with above-mentioned blind hole, above-mentioned adjusting screw rod spiral in described penetration hole and this inserting end put in blind hole and abut against above-mentioned spring seat.
In the pressure regulating mechanism of an above-mentioned a kind of lever operation valve overflow ducts, the end, outer end of described adjusting screw rod offers interior hexagonal screw.
Compared with prior art, the pressure regulating mechanism of this lever operation valve overflow ducts is mainly included in the adjusting screw rod that is provided with spring seat and leans with spring seat in pressure regulation valve gap, the adjusting screw rod the other end stretches out above-mentioned pressure regulation valve gap, between core bar and spring seat, be provided with spring, one end of spring abuts against core bar, the other end of this spring abuts against spring seat and by spring seat, by screw rod, conflicts and be connected on valve body by screw spiral, the axial progress of spring seat on valve body can be carried out electrodeless adjusting to the force value of spring, simple in structure, easy to operate.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the pressure regulating mechanism of this lever operation valve overflow ducts.
In figure, 1, valve body; 2, oil inlet passage; 3, oil discharge passage; 4, valve rod; 5, pressure release passage; 6, core bar; 6a, coniform head; 6b, locating column; 7, pressure regulation valve gap; 7a, blind hole; 7b, penetration hole; 8, spring seat; 9, adjusting screw rod; 10, spring; 11, guide sleeve; 12, interior hexagonal screw.
Embodiment
Be below specific embodiment of the utility model 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.
As shown in Figure 1, this lever operation valve is mainly comprised of valve body 1, on valve body 1, offer oil inlet passage 2 and oil discharge passage 3, on valve body 1, be provided with the valve rod 4 that makes above-mentioned oil inlet passage 2 and oil discharge passage 3 be communicated with or block, this pressure regulating mechanism is included in and on valve body 1, also offers a pressure release passage being connected with fuel tank 5, pressure release passage 5 and oil discharge passage 3 are connected, between pressure release passage 5 and oil discharge passage 3, be provided with core bar 6, the coniform head 6a of core bar 6 contacts in oil discharge passage 3, the other end of this core bar 6 faces the pressure regulation valve gap 7 being connected on valve body 1, the adjusting screw rod 9 that is provided with spring seat 8 and leans with spring seat 8 in pressure regulation valve gap 7, adjusting screw rod 9 the other ends stretch out above-mentioned pressure regulation valve gap 7, between core bar 6 and spring seat 8, be provided with spring 10, one end of described spring 10 abuts against above-mentioned core bar 6, the other end of this spring 10 abuts against spring seat 8, when Practical manufacturing, this core bar 6 also comprises the locating column 6b being positioned on coniform head 6a bottom surface, and the locating column 6b of core bar 6 is located in a guide sleeve 11, and guide sleeve 11 is passed through against this above-mentioned core bar 6 in spring 10 one end.
In actual applications, these pressure regulation valve gap 7 spirals are fixed on valve body 1, in pressure regulation valve gap 7, offer a blind hole 7a, spring seat 8 is arranged in blind hole 7a, in blind hole 7a bottom, offer the penetration hole 7b being connected with blind hole 7a, adjusting screw rod 9 spirals in penetration hole 7b and this inserting end put in blind hole 7a and abut against above-mentioned spring seat 8; The end, outer end of this adjusting screw rod 9 offers interior hexagonal screw 12.
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 modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used herein: valve body 1; Oil inlet passage 2; Oil discharge passage 3; Valve rod 4; Pressure release passage 5; Core bar 6; Coniform head 6a; Locating column 6b; Pressure regulation valve gap 7; Blind hole 7a; Penetration hole 7b; Spring seat 8; Adjusting screw rod 9; Spring 10; Guide sleeve 11; Interior hexagonal screw 12 terms such as grade, but do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (4)
1. the pressure regulating mechanism of a lever operation valve overflow ducts, this lever operation valve comprises valve body (1), on valve body (1), offer oil inlet passage (2) and oil discharge passage (3), on valve body (1), be provided with the valve rod (4) that makes above-mentioned oil inlet passage (2) and oil discharge passage (3) be communicated with or block, it is characterized in that, this pressure regulating mechanism is included in and on valve body (1), also offers a pressure release passage being connected with fuel tank (5), described pressure release passage (5) and oil discharge passage (3) are connected, between pressure release passage (5) and oil discharge passage (3), be provided with core bar (6), the coniform head (6a) of core bar (6) contacts in above-mentioned oil discharge passage (3), the other end of this core bar (6) faces the pressure regulation valve gap (7) being connected on valve body (1), the adjusting screw rod (9) that is provided with spring seat (8) and leans with spring seat (8) in pressure regulation valve gap (7), described adjusting screw rod (9) the other end stretches out above-mentioned pressure regulation valve gap (7), between above-mentioned core bar (6) and spring seat (8), be provided with spring (10), one end of described spring (10) abuts against above-mentioned core bar (6), the other end of this spring (10) abuts against spring seat (8).
2. the pressure regulating mechanism of an a kind of lever operation valve overflow ducts according to claim 1, it is characterized in that, described core bar (6) also comprises the locating column (6b) being positioned on coniform head (6a) bottom surface, the locating column (6b) of described core bar (6) is located in a guide sleeve (11), and guide sleeve (11) is passed through against this above-mentioned core bar (6) in above-mentioned spring (10) one end.
3. the pressure regulating mechanism of an a kind of lever operation valve overflow ducts according to claim 1, it is characterized in that, described pressure regulation valve gap (7) spiral is fixed on above-mentioned valve body (1), in pressure regulation valve gap (7), offer a blind hole (7a), above-mentioned spring seat (8) is arranged in described blind hole (7a), in blind hole (7a) bottom, offer the penetration hole (7b) being connected with above-mentioned blind hole (7a), above-mentioned adjusting screw rod (9) spiral in described penetration hole (7b) and this inserting end put in blind hole (7a) and abut against above-mentioned spring seat (8).
4. the pressure regulating mechanism of an a kind of lever operation valve overflow ducts according to claim 3, is characterized in that, the end, outer end of described adjusting screw rod (9) offers interior hexagonal screw (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473243.8U CN203413166U (en) | 2013-08-05 | 2013-08-05 | Pressure-regulating mechanism of overflow channel of one-rod maneuvering valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473243.8U CN203413166U (en) | 2013-08-05 | 2013-08-05 | Pressure-regulating mechanism of overflow channel of one-rod maneuvering valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203413166U true CN203413166U (en) | 2014-01-29 |
Family
ID=49976055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320473243.8U Expired - Fee Related CN203413166U (en) | 2013-08-05 | 2013-08-05 | Pressure-regulating mechanism of overflow channel of one-rod maneuvering valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203413166U (en) |
-
2013
- 2013-08-05 CN CN201320473243.8U patent/CN203413166U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20170805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |