CN2447153Y - Control valve for wood-processing machinery - Google Patents
Control valve for wood-processing machinery Download PDFInfo
- Publication number
- CN2447153Y CN2447153Y CN 00256371 CN00256371U CN2447153Y CN 2447153 Y CN2447153 Y CN 2447153Y CN 00256371 CN00256371 CN 00256371 CN 00256371 U CN00256371 U CN 00256371U CN 2447153 Y CN2447153 Y CN 2447153Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- oil
- valve body
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides a control valve for wood-processing machinery. The utility model mainly comprises a valve body, a valve rod and a valve block which are arranged in the valve body, wherein, an oil inlet channel, an oil returning channel and an oil outlet channel are arranged on the vale body; a handle seat and a handle are fixedly arranged on the valve rod. The utility model is characterized in that an oil cavity is arranged between the valve rod and the valve block which are arranged in the valve body; the oil cavity is communicated with the oil inlet channel and the oil outlet channel; a blind hole of the valve rod is arranged on the contact end between the valve rod and the oil cavity, communicated with the oil cavity, provided with an oil hole of the valve rod on the side surface which can be communicated with the oil returning channel when the valve rod rotates to a certain position.
Description
The utility model relates to the part that wood processing machinery is used, especially a kind of wood processing machinery control valve.
In the prior art, the technology the most approaching with present patent application, be by No. 00215664.4 patent application of the applicant to China Intellectual Property Office's application, this patent application discloses a kind of wood splitting machine control valve, this control valve is the parallel oil inlet passage of controlling high pressure oil that moves by valve rod, the break-make of oil discharge passage and drainback passage, can realize high pressure oil is transferred to the control of piston cavity work done and the defeated oil sump tank of high pressure oil, the existing deficiency of the structure of this control valve is, it is higher to the seal request between valve rod and the valve body that valve rod parallel moved, sealing also is easy to damage in the course of the work, in addition, be exactly the complex structure of valve rod and valve pocket, be processed with certain degree of difficulty.
The purpose of this utility model, be exactly at the existing in prior technology deficiency, and provide a kind of wood processing machinery control valve technological scheme, it is to transfer to the piston cavity work done or return fuel tank by drainback passage by oil discharge passage that this scheme adopts the rotation of valve rod to control high pressure oil, the rotation of valve rod has just reduced the seal request between valve rod and the valve body, and the structure of valve rod also simply is easy to processing.
This programme is realized by following technical measures.Mainly include valve body and the valve rod in valve body, the valve that has the stifled seal ring of valve is stifled, on valve body, also has oil inlet passage, drainback passage and oil discharge passage, on the valve rod that stretches out outside the valve body, be fixed with handle set, be fixedly connected with handle on the handle set, the characteristics of this programme are between described valve body inner valve stem and valve are stifled oil pocket to be arranged, this oil pocket communicates with described oil inlet passage and oil discharge passage, contact jaw with oil pocket on valve rod has the valve rod blind hole, this valve rod blind hole communicates with oil pocket, the valve rod oilhole is arranged on the sidewall of valve rod blind hole, and this valve rod oilhole communicates with drainback passage when valve rod turns to certain position.The concrete characteristics of this programme also have, and have on the described valve rod between end of valve rod blind hole and the valve body and also have valve pocket, have the valve pocket oilhole to communicate with drainback passage on this valve pocket.The end that described valve rod stretches out valve body has guide sleeve to fixedly connected with valve body.The guide sleeve seal ring is arranged between described guide sleeve and valve body.Also have torsion spring to be connected with valve body with handle set respectively between described handle set and the valve body.Fixedly connected between described valve rod and the handle set is to fix with the fastening screw trip bolt on the handle set.
According to as can be known to the narration of such scheme, owing on the valve body in this scheme an oil pocket is arranged, the oil inlet passage of described oil pocket and high pressure oil, high pressure oil goes the oil discharge passage of piston cavity and the valve rod blind hole on the valve rod to communicate, and the valve rod oilhole is arranged on the sidewall of the valve rod blind hole on the valve rod, valve rod is again rotary, when valve rod turns to certain position, make valve rod oilhole on the valve rod when drainback passage on the valve body communicates, high pressure oil in the oil pocket then flows back to fuel tank by the valve rod oilhole through drainback passage, when valve rod turns to when drainback passage sealed, high pressure oil in the oil pocket then goes piston cavity to promote piston by oil discharge passage and moves work done, thereby has controlled the action of wood processing machinery.The control valve of this structure, since valve rod be by and valve body between relatively rotate the trend of controlling high pressure oil, so the sealing between valve body and the valve rod just is easier to realize, and in the long-term work process, also can keep its sealing, this programme adopts between valve rod and valve body and realizes sealing with the guide sleeve of band seal ring, in addition, is exactly the simple in structure of valve rod, also manufacturing easily, this can reduce the processing cost of control valve again.Also have valve pocket between the valve rod of control valve and valve body, the effect of this valve pocket is to establish for the sealing that increases valve rod and the wear resistance of valve body.Also have a torsion spring between handle set of fixedlying connected with valve rod and valve body, this torsion spring can keep the position of handle when processing machine is not worked to maintain static.This shows that the utility model compared with prior art has substantive distinguishing features and progress, its implementation result also is conspicuous.
For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by a specific embodiment.
Description of drawings:
Fig. 1 is the utility model embodiment's a sectional structure schematic representation.
By accompanying drawing as can be seen, the wood processing machinery control valve of this programme, mainly include valve body 7 and the valve rod in valve body 76, the valve stifled 15 that has the stifled seal ring 16 of valve, on valve body 7, also has oil inlet passage 14, drainback passage 11 and oil discharge passage 13, on the valve rod 6 that stretches out outside the valve body 7, be fixed with handle set 4, be fixedly connected with handle 3 on the handle set 4, the characteristics of this programme are between described valve body 7 inner valve stem 6 and valve stifled 15 oil pocket 12 to be arranged, this oil pocket 12 communicates with described oil inlet passage 14 and oil discharge passage 13, contact jaw with oil pocket 12 on valve rod 6 has valve rod blind hole 17, this valve rod blind hole 17 communicates with oil pocket 12, valve rod oilhole 9 is arranged on the sidewall of valve rod blind hole 17, and this valve rod oilhole 9 communicates with drainback passage 11 when valve rod 6 turns to certain position.Have on the described valve rod 6 to also have valve pocket 8 between end of valve rod blind hole 17 and the valve body 7, on this valve pocket 8, have valve pocket oilhole 10 to communicate with drainback passage 11.The end that described valve rod 6 stretches out valve body 7 has guide sleeve 1 to fixedly connected with valve body 7.Between described guide sleeve 1 and valve body 7, guide sleeve seal ring 18 is arranged.Also have torsion spring 5 to be connected with valve body 7 with handle set 4 respectively between described handle set 4 and the valve body 7.Fixedly connected between described valve rod 6 and the handle set 4 is that the fastening screw trip bolt 2 that is used on the handle set 4 fixes.
Claims (6)
1. wood processing machinery control valve, mainly include valve body [7] and the valve rod [6] in valve body [7], the valve stifled [15] that has the stifled seal ring [16] of valve, go up oil inlet passage [14] in addition at valve body [7], drainback passage [11] and oil discharge passage [13], on the valve rod [6] that stretches out outside the valve body [7], be fixed with handle set [4], be fixedly connected with handle [3] on the handle set [4], it is characterized in that between described valve body [7] inner valve stem [6] and valve stifled [15], oil pocket [12] being arranged, this oil pocket [12] communicates with described oil inlet passage [14] and oil discharge passage [13], contact jaw last at valve rod [6] and oil pocket [12] has valve rod blind hole [17], this valve rod blind hole [17] communicates with oil pocket [12], valve rod oilhole [9] is arranged on the sidewall of valve rod blind hole [17], and this valve rod oilhole [9] communicates with drainback passage [11] when turning to certain position at valve rod [6].
2. wood processing machinery control valve according to claim 1, it is characterized in that having on the described valve rod [6] between end of valve rod blind hole [17] and the valve body [7] also having valve pocket [8], on this valve pocket [8], have valve pocket oilhole [10] to communicate with drainback passage [11].
3. wood processing machinery control valve according to claim 1 is characterized in that the end that described valve rod [6] stretches out valve body [7] has guide sleeve [1] to fixedly connected with valve body [7].
4. wood processing machinery control valve according to claim 3 is characterized in that between described guide sleeve [1] and the valve body [7] guide sleeve seal ring [18] being arranged.
5. wood processing machinery control valve according to claim 1 is characterized in that also having between described handle set [4] and the valve body [7] torsion spring [5] to be connected with valve body [7] with handle set [4] respectively.
6. wood processing machinery control valve according to claim 1 is characterized in that fixedly connected between described valve rod [6] and the handle set [4] is to fix with the fastening screw trip bolt [2] on the handle set [4].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00256371 CN2447153Y (en) | 2000-11-13 | 2000-11-13 | Control valve for wood-processing machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00256371 CN2447153Y (en) | 2000-11-13 | 2000-11-13 | Control valve for wood-processing machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2447153Y true CN2447153Y (en) | 2001-09-12 |
Family
ID=33613099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00256371 Expired - Fee Related CN2447153Y (en) | 2000-11-13 | 2000-11-13 | Control valve for wood-processing machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2447153Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639129B (en) * | 2008-07-29 | 2011-03-02 | 青岛铁华进出口有限公司 | Manual drive control valve and wood splitting machine provided with same |
| CN110985707A (en) * | 2019-12-23 | 2020-04-10 | 武汉欣力瑞机电设备有限公司 | Multi-channel flow divider |
-
2000
- 2000-11-13 CN CN 00256371 patent/CN2447153Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639129B (en) * | 2008-07-29 | 2011-03-02 | 青岛铁华进出口有限公司 | Manual drive control valve and wood splitting machine provided with same |
| CN110985707A (en) * | 2019-12-23 | 2020-04-10 | 武汉欣力瑞机电设备有限公司 | Multi-channel flow divider |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |