CN205578388U - Hydraulic directional control valve's switching -over structure - Google Patents
Hydraulic directional control valve's switching -over structure Download PDFInfo
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- CN205578388U CN205578388U CN201620343673.1U CN201620343673U CN205578388U CN 205578388 U CN205578388 U CN 205578388U CN 201620343673 U CN201620343673 U CN 201620343673U CN 205578388 U CN205578388 U CN 205578388U
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- oil groove
- logical oil
- poppet shaft
- groove
- logical
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Abstract
The utility model discloses a hydraulic directional control valve's switching -over structure, including case axle, valve barrel and the valve block base body, the valve barrel cover is established at the case epaxially, at the epaxial two logical oil ring groove that are equipped with of case, it leads to the oil ring chamber to lead to to form between oil ring groove and the valve barrel inboard, correspond two logical oil ring chambeies in the outside of valve barrel and be equipped with oil passing groove A and oil passing groove B respectively, be equipped with oil passing groove P between oil passing groove A and oil passing groove B, be equipped with a oil passing groove T respectively in oil passing groove A and oil passing groove B's the outside, oil passing groove A, oil passing groove B and oil passing groove T are linked together through oilhole and corresponding logical oil ring chamber respectively, and oil passing groove P is linked together with two logical oil ring chambeies through the oilhole simultaneously, the valve barrel is in the same place with valve block base body interference fit, on this valve block base body, correspond oil passing groove A, oil passing groove B, oil passing groove P and two oil passing groove T and be equipped with an at least oilhole respectively. The utility model discloses simple structure, processing is convenient, the assembly of being convenient for, and the leakproofness is good to can effectively reduce use cost.
Description
Technical field
This utility model relates to HYDRAULIC CONTROL SYSTEM element, particularly relates to the commutating structure of a kind of hydraulicdirectional control valve.
Background technology
Hydraulicdirectional control valve is the control element in hydraulic system, is used for changing the direction of motion of executive component.The performance quality of hydraulicdirectional control valve decides whether a hydraulic system can be operated effectively.
The hydraulicdirectional control valve kind of prior art is the most various, is mostly as an independent element and is present in hydraulic system.Owing to needing to connect pipeline as the hydraulicdirectional control valve of independent component or valve block just can work in hydraulic system, therefore for those hydraulic systems needing Highgrade integration, its volume and weight becomes the principal element limiting its range.Meanwhile, as the hydraulicdirectional control valve of independent component, structure is complicated, processing, matching requirements precision height, adds use cost.
Utility model content
For deficiencies of the prior art, the purpose of this utility model is that the commutating structure how solving existing hydraulicdirectional control valve is complicated, processing trouble, assembly precision requires height, the problem of sealing difference, the commutating structure of a kind of hydraulicdirectional control valve is provided, simple in construction, easy to process, it is simple to assembling, and good airproof performance, and can effectively reduce use cost.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is such that the commutating structure of a kind of hydraulicdirectional control valve, including poppet shaft, valve pocket and valve block matrix, it is characterized in that: described valve pocket is set in poppet shaft, and there is between poppet shaft and valve pocket gap, enable poppet shaft to move along its axis, between the two ends and poppet shaft of valve pocket, be respectively equipped with an O RunddichtringO；
Being provided with two in poppet shaft and lead to oil ring groove, described logical oil ring groove was around poppet shaft one week, and two lead to oil ring groove and are distributed with the centrosymmetry of poppet shaft, inside described logical oil ring groove and valve pocket between form logical oil ring chamber；Outside correspondence two at valve pocket is led to oil ring chamber and is respectively equipped with logical oil groove A and logical oil groove B, logical oil groove P it is provided with between logical oil groove A and logical oil groove B, it is respectively equipped with one in the outside of logical oil groove A and logical oil groove B and leads to oil groove T, and two lead to oil groove T respectively close to two ends leading to oil ring chamber；Described logical oil groove A, logical oil groove B and logical oil groove T are connected with corresponding logical oil ring chamber by oilhole respectively, and logical oil groove P leads to oil ring chamber with two by oilhole simultaneously and is connected；When poppet shaft is moved to the left, two lead to the oilhole closing that the poppet shaft part between oil ring chamber can will be connected and near logical oil groove A side with logical oil groove P, simultaneously, the oilhole connected with the logical oil groove T-phase near logical oil groove B is closed by poppet shaft, and logical oil groove B leads to oil ring chamber with logical oil groove P with right side and is connected；When poppet shaft moves right, two lead to the oilhole closing that the poppet shaft part in the middle of oil ring chamber can will be connected and near logical oil groove B side with logical oil groove P, simultaneously, the oilhole connected with the logical oil groove T-phase near logical oil groove A is closed by poppet shaft, and logical oil groove A leads to oil ring chamber with logical oil groove P with left side and is connected；
Described valve block matrix is provided with the valve opening corresponding with valve pocket, and described valve pocket is positioned at this valve opening, and together with valve block matrix interference fit；On this valve block matrix, corresponding logical oil groove A, logical oil groove B, logical oil groove P and two lead to oil groove T and are respectively equipped with at least one oilhole.
Further, being additionally provided with two balancing slits in poppet shaft, described balancing slit was around poppet shaft one week, and two balancing slits lay respectively at two outsides leading to oil ring chamber.
Further, at the spool pad that is respectively arranged at two ends with of poppet shaft, described spool pad is made up of nonmetallic materials.
Further, described poppet shaft, valve pocket and valve block matrix all use high-strength alloy Steel material to make.
Compared with prior art, this utility model has the advantage that
1, simple in construction, characteristics of compact layout, it is simple to install and debug.
2, in the course of processing, mainly processing valve pocket and poppet shaft cylindrical, make difficulty of processing be greatly lowered, easy to process, it is simple to assembling, and assembly precision requires to be substantially reduced.
3, it is low pressure seal between valve pocket and poppet shaft, makes sealing reliability be improved, thus be substantially reduced use cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is assembling structural representation of the present utility model.
In figure: 1 poppet shaft, 2 valve pockets, 3 valve block matrixes, 4 O RunddichtringOs, 5 lead to oil ring groove, and 6 lead to oil groove A, 7 lead to oil groove B, and 8 lead to oil groove P, and 9 lead to oil groove T, 10 balancing slits, 11 spool pads, 12 valve seats, 13 steering tillers, 14 locating dowels, 15 movable posts, 16 back-moving springs.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment: see Fig. 1, a kind of commutating structure of hydraulicdirectional control valve, including poppet shaft 1, valve pocket 2 and valve block matrix 3, described poppet shaft 1, valve pocket 2 and valve block matrix 3 all use high-strength alloy Steel material to make, the intensity of commutating structure can be improved, thus extend the service life of commutating structure.Described valve pocket 2 is set in poppet shaft 1, and has gap between poppet shaft 1 and valve pocket 2, makes poppet shaft 1 to move along its axis, and is respectively equipped with an O RunddichtringO 4 between the two ends of valve pocket 2 and poppet shaft 1.At the spool pad 11 that is respectively arranged at two ends with of poppet shaft 1, described spool pad 11 is made up of nonmetallic materials, is used for transmitting thrust during commutation, it is to avoid poppet shaft 1 is stressed directly and causes damage.
Being provided with two in poppet shaft 1 and lead to oil ring groove 5, described logical oil ring groove 5 was around poppet shaft 1 one weeks, and two lead to oil ring groove 5 and are distributed with the centrosymmetry of poppet shaft 1, inside described logical oil ring groove 5 and valve pocket 2 between form logical oil ring chamber.Outside correspondence two at valve pocket 2 is led to oil ring chamber and is respectively equipped with logical oil groove A6 and logical oil groove B7, logical oil groove P8 it is provided with between logical oil groove A6 and logical oil groove B7, it is respectively equipped with one in the outside of logical oil groove A6 and logical oil groove B7 and leads to oil groove T9, and two lead to oil groove T9 respectively close to two ends leading to oil ring chamber.Described logical oil groove A6, logical oil groove B7 and logical oil groove T9 are connected with corresponding logical oil ring chamber by oilhole respectively, and logical oil groove P8 leads to oil ring chamber with two by oilhole simultaneously and is connected；When poppet shaft 1 is moved to the left, two lead to the oilhole closing that poppet shaft 1 part between oil ring chamber can will be connected and near logical oil groove A6 side with logical oil groove P8, simultaneously, the oilhole being connected with the logical oil groove T9 near logical oil groove B7 is closed by poppet shaft 1, and logical oil groove B7 leads to oil ring chamber with logical oil groove P8 with right side and is connected；When poppet shaft 1 moves right, two lead to the oilhole closing that poppet shaft 1 part between oil ring chamber can will be connected and near logical oil groove B7 side with logical oil groove P8, simultaneously, the oilhole being connected with the logical oil groove T9 near logical oil groove A6 is closed by poppet shaft 1, and logical oil groove A6 leads to oil ring chamber with logical oil groove P8 with left side and is connected.
Described valve block matrix 3 is provided with the valve opening corresponding with valve pocket 2, and described valve pocket 2 is positioned at this valve opening, and together with valve block matrix 3 interference fit；On this valve block matrix 3, corresponding logical oil groove A6, logical oil groove B7, logical oil groove P8 and two lead to oil groove T9 and are respectively equipped with at least one oilhole.
Being additionally provided with two balancing slits 10 in poppet shaft 1, described balancing slit 10 was around poppet shaft 1 one weeks, and two balancing slits 10 lay respectively at two outsides leading to oil ring chamber；By arranging balancing slit 10, form low pressure seal between poppet shaft 1 and valve pocket 2, make the oil pressure of poppet shaft 1 surrounding be more nearly, so that poppet shaft 1 is higher with the axial line registration of valve pocket 2, make resistance in the moving process of poppet shaft 1 less.
See Fig. 2, during use, this utility model is installed on valve seat 12, and is assembled together with steering tiller 13, wherein, axially radially consistent with valve seat 12 of poppet shaft 1, the axial line formation eccentric shaft of the axial line of the endoporus of steering tiller 13 and valve seat 12；When rotating steering ring, steering ring can promote one end of poppet shaft 1 to move to the other end；Rotated by different directions, it is possible to realize the oil circuit trend of different directions, thus realize different directions fuel feeding.In manufacturing process, valve seat 12 is additionally provided with a locating dowel 14, inside steering tiller 13, the position corresponding with locating dowel 14 is provided with movable post 15, in steering tiller 13, it is provided with a back-moving spring 16, rotating around being located on locating dowel 14 and movable post 15 after the two ends intersection of described back-moving spring 16, rotates steering tiller 13, movable post 15 can drive one end of back-moving spring 16 to rotate, and the other end of back-moving spring 16 is fixed by locating dowel 14；By the different rotation directions of reversing handle, form the reseting torque of different directions；After unclamping hands, under the effect of back-moving spring 16, steering tiller 13 is capable of automatically reseting of poppet shaft 1.
In work process, logical oil groove P8 is high pressure sump, and two to lead to oil groove T9 be low-pressure tank；This utility model is capable of 3-position 4-way: when poppet shaft 1 is positioned at middle position (center of poppet shaft 1 and the center superposition of hair net), logical oil groove P8 and logical oil groove A6, logical oil groove B7 and two lead to oil groove T9 and all communicate, hydraulic oil through logical oil groove P8 simultaneously enter two lead to oil ring chamber after directly lead to oil groove T9 through two and flow out, it is achieved hydraulic pump off-load.When poppet shaft 1 is left position (to moving to left), logical oil groove P8 and logical oil groove B7 communicates, and logical oil groove A6 and logical oil groove T9 communicates, and now, hydraulic oil, after logical oil groove P8 enters logical oil ring chamber, flows out from logical oil groove B7, and produces action；Low pressure oil then, after logical oil groove A6 enters logical oil ring chamber, flows out from logical oil groove T9.When poppet shaft 1 is right position (moving right), logical oil groove P8 and logical oil groove A6 communicates, and logical oil groove B7 and logical oil groove T9 communicates, and now, hydraulic oil, after logical oil groove P8 enters logical oil ring chamber, flows out from logical oil groove A6, and produces action；Low pressure oil then, after logical oil groove B7 enters logical oil ring chamber, flows out from logical oil groove T9.Thus by the diverse location of poppet shaft 1, the different trends of existing oil circuit when coming.
Finally it should be noted that, above example is only in order to illustrate the technical solution of the utility model rather than restriction technologies scheme, it will be understood by those within the art that, the technical solution of the utility model is modified or equivalent by those, without deviating from objective and the scope of the technical program, all should contain in the middle of right of the present utility model.
Claims (4)
1. the commutating structure of a hydraulicdirectional control valve, including poppet shaft, valve pocket and valve block matrix, it is characterized in that: described valve pocket is set in poppet shaft, and there is between poppet shaft and valve pocket gap, enable poppet shaft to move along its axis, between the two ends and poppet shaft of valve pocket, be respectively equipped with an O RunddichtringO；
Being provided with two in poppet shaft and lead to oil ring groove, described logical oil ring groove was around poppet shaft one week, and two lead to oil ring groove and are distributed with the centrosymmetry of poppet shaft, inside described logical oil ring groove and valve pocket between form logical oil ring chamber；Outside correspondence two at valve pocket is led to oil ring chamber and is respectively equipped with logical oil groove A and logical oil groove B, logical oil groove P it is provided with between logical oil groove A and logical oil groove B, it is respectively equipped with one in the outside of logical oil groove A and logical oil groove B and leads to oil groove T, and two lead to oil groove T respectively close to two ends leading to oil ring chamber；Described logical oil groove A, logical oil groove B and logical oil groove T are connected with corresponding logical oil ring chamber by oilhole respectively, and logical oil groove P leads to oil ring chamber with two by oilhole simultaneously and is connected；When poppet shaft is moved to the left, two lead to the oilhole closing that the poppet shaft part between oil ring chamber can will be connected and near logical oil groove A side with logical oil groove P, simultaneously, the oilhole connected with the logical oil groove T-phase near logical oil groove B is closed by poppet shaft, and logical oil groove B leads to oil ring chamber with logical oil groove P with right side and is connected；When poppet shaft moves right, two lead to the oilhole closing that the poppet shaft part between oil ring chamber can will be connected and near logical oil groove B side with logical oil groove P, simultaneously, the oilhole connected with the logical oil groove T-phase near logical oil groove A is closed by poppet shaft, and logical oil groove A leads to oil ring chamber with logical oil groove P with left side and is connected；
Described valve block matrix is provided with the valve opening corresponding with valve pocket, and described valve pocket is positioned at this valve opening, and together with valve block matrix interference fit；On this valve block matrix, corresponding logical oil groove A, logical oil groove B, logical oil groove P and two lead to oil groove T and are respectively equipped with at least one oilhole.
The commutating structure of a kind of hydraulicdirectional control valve the most according to claim 1, it is characterised in that: being additionally provided with two balancing slits in poppet shaft, described balancing slit was around poppet shaft one week, and two balancing slits lay respectively at two outsides leading to oil ring chamber.
The commutating structure of a kind of hydraulicdirectional control valve the most according to claim 1, it is characterised in that: at the spool pad that is respectively arranged at two ends with of poppet shaft, described spool pad is made up of nonmetallic materials.
The commutating structure of a kind of hydraulicdirectional control valve the most according to claim 1, it is characterised in that: described poppet shaft, valve pocket and valve block matrix all use high-strength alloy Steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620343673.1U CN205578388U (en) | 2016-04-22 | 2016-04-22 | Hydraulic directional control valve's switching -over structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620343673.1U CN205578388U (en) | 2016-04-22 | 2016-04-22 | Hydraulic directional control valve's switching -over structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205578388U true CN205578388U (en) | 2016-09-14 |
Family
ID=56860914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620343673.1U Expired - Fee Related CN205578388U (en) | 2016-04-22 | 2016-04-22 | Hydraulic directional control valve's switching -over structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205578388U (en) |
-
2016
- 2016-04-22 CN CN201620343673.1U patent/CN205578388U/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: 20160914 Termination date: 20200422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |