CN205059724U - Take full hydraulic steering of low noise relief valve - Google Patents
Take full hydraulic steering of low noise relief valve Download PDFInfo
- Publication number
- CN205059724U CN205059724U CN201520831393.0U CN201520831393U CN205059724U CN 205059724 U CN205059724 U CN 205059724U CN 201520831393 U CN201520831393 U CN 201520831393U CN 205059724 U CN205059724 U CN 205059724U
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- valve
- low noise
- hydraulic steering
- channel
- case
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Abstract
The utility model discloses a take full hydraulic steering of low noise relief valve, take full hydraulic steering of low noise relief valve contain a valve body, the valve body in be equipped with a case passageway and a disk seat passageway, the case passageway link up mutually with an implanted channel, the disk seat passageway link up mutually with first -class stand out channel, the case passageway in be equipped with a case that can transversely move about, the disk seat passageway in be equipped with a disk seat that can transversely move about, the case with the disk seat between be equipped with a reset spring, the top of case be equipped with an accurate steel ball. The utility model discloses a take full hydraulic steering of low noise relief valve has following advantage: because the case direct mount is in the case passageway, do not have any valve barrel structure, also need not extra sealed and limit structure, greatly reduced required part number, simple structure, the good reliability is used on the electronic industry vehicle that is particularly suitable for having relatively high expectations to the noise.
Description
Technical field
The utility model relates to a kind of turning facilities, or rather, is a kind of all-hydraulic steering gear with low noise safety valve.
Background technology
All-hydraulic steering gear is a kind of common steering control apparatus, is widely used on field machine and industrial vehicle.In order to be limited in top pressure during deflector work, deflector inside or outside generally arrange safety valve.Existing safety valve structure is generally spool housing configuration, namely spool is arranged in valve pocket, valve pocket is arranged in valve body inner bore, need multiple auxiliary component to ensure the sealing of valve pocket and valve body and spacing, complex structure, poor reliability, spool length-diameter ratio is large, very easily produces hydraulic pressure noise at safety valve by large discharge.
Utility model content
The utility model mainly solves the technical matters existing for prior art, thus provides a kind of all-hydraulic steering gear with low noise safety valve.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals:
A kind of all-hydraulic steering gear with low noise safety valve, the all-hydraulic steering gear of described band low noise safety valve comprises a valve body, a valve core channel and a valve base channel is provided with in described valve body, described valve core channel and an injection channel connect, described valve base channel and a flow pass connect, be provided with in described valve core channel one can be laterally movable spool, be provided with in described valve base channel one can be laterally movable valve seat, a retracing spring is provided with between described spool and described valve seat, the top of described spool is provided with an accurate steel balls, described accurate steel balls is arranged on the top of described valve core channel, described spool comprises the core body of a dumbbell shaped, the head of described core body is provided with a columned sealing cylinder, the sidewall of described sealing cylinder is provided with a piezometer ring groove array be made up of the piezometer ring groove of annular, the afterbody of described core body is provided with the spring stop piece of an annular, described spring stop piece matches with described retracing spring, the middle part of described core body is provided with an equal pressure passageway run through, described valve seat comprises a columned pedestal, the head of described pedestal is provided with a spring column cap, described spring column cap matches with described retracing spring, the afterbody of described pedestal is provided with the closure gasket groove of an annular, a detouchable O-ring seal is provided with in described closure gasket groove.
As the utility model preferred embodiment, the bottom of described equal pressure passageway is provided with a damping hole.
The all-hydraulic steering gear of band low noise safety valve of the present utility model has the following advantages: because spool is directly installed in valve core channel, without any housing configuration, also without the need to extra sealing and position limiting structure, greatly reduce required number of components, structure is simple, good reliability, practical, be particularly suitable for using on the higher electric industry vehicle of noise requirements.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the perspective view of the all-hydraulic steering gear of band low noise safety valve of the present utility model;
Fig. 2 is the perspective view of the all-hydraulic steering gear of band low noise safety valve in Fig. 1, is now another visual angle;
Fig. 3 is the cutaway view of all-hydraulic steering gear along A-A line of band low noise safety valve in Fig. 2;
Fig. 4 is the perspective view of the valve body of the all-hydraulic steering gear of band low noise safety valve in Fig. 2;
Fig. 5 is the cutaway view of the valve body in Fig. 4 along B-B line;
Fig. 6 is the further spatial structure decomposing schematic representation of the all-hydraulic steering gear of band low noise safety valve in Fig. 3;
Fig. 7 is the perspective view of the valve seat of the all-hydraulic steering gear of band low noise safety valve in Fig. 6;
Fig. 8 is the cutaway view of the valve seat in Fig. 7 along C-C line;
Fig. 9 is the perspective view of the spool of the all-hydraulic steering gear of band low noise safety valve in Fig. 6;
Figure 10 is the cutaway view of the spool in Fig. 9 along D-D line;
Wherein,
1, the all-hydraulic steering gear of low noise safety valve is with; 2, valve body; 3, valve core channel; 4, valve base channel; 5, injection channel; 6, flow pass; 7, spool; 71, core body; 72, cylinder is sealed; 721, piezometer ring groove; 73, spring stop piece; 74, equal pressure passageway; 741, damping hole; 8, retracing spring; 9, valve seat; 91, pedestal; 92, spring column cap; 93, closure gasket groove; 10, O-ring seal; 11, accurate steel balls.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
As shown in Figures 1 to 10, the all-hydraulic steering gear 1 of this band low noise safety valve comprises a valve body 2, valve core channel 3 and a valve base channel 4 is provided with in this valve body 2, this valve core channel 3 and an injection channel 5 connect, this valve base channel 4 and a flow pass 6 connect, be provided with in this valve core channel 3 one can be laterally movable spool 7, be provided with in this valve base channel 4 one can be laterally movable valve seat 9, a retracing spring 8 is provided with between this spool 7 and this valve seat 9, the top of this spool 7 is provided with an accurate steel balls 11, this accurate steel balls 11 is arranged on the top of this valve core channel 3, this spool 7 comprises the core body 71 of a dumbbell shaped, the head of this core body 71 is provided with a columned sealing cylinder 72, the sidewall of sealing cylinder 72 is provided with a piezometer ring groove array be made up of the piezometer ring groove 721 of annular, the afterbody of this core body 71 is provided with the spring stop piece 73 of an annular, this spring stop piece 73 matches with this retracing spring 8, the middle part of this core body 71 is provided with an equal pressure passageway 74 run through, this valve seat 9 comprises a columned pedestal 91, the head of this pedestal 91 is provided with a spring column cap 92, this spring column cap 92 matches with this retracing spring 8, the afterbody of this pedestal 91 is provided with the closure gasket groove 93 of an annular, a detouchable O-ring seal 10 is provided with in sealing annular groove 93.
The bottom of this equal pressure passageway 74 is provided with a damping hole 741.
During use, as shown in Figure 3, when the pressure in valve body 2 exceeds preset security value, high pressure oil enters and extrudes spool 7 in injection channel 5, spool 7 is moved to the left, high pressure oil enters the gap between spool 7 and valve base channel 4, finally flows out from flow pass 6, the pressure in valve body 2 is discharged.When the Pressure Drop in valve body 2 is low to moderate preset security value, under the effect of retracing spring 8, spool 7 moves right, the pathway closure between spool 7 and valve base channel 4.
This accurate steel balls 11 is arranged on the top of this valve core channel 3, when processing valve core channel 3, directly utilizing external force by accurate steel balls 11 to head into valve core channel 3, substantially increasing the precision that valve core channel 3 is processed, and improves the tightness of spool 7 and valve core channel 3.
Because spool 7 is directly installed in valve core channel 3, without any housing configuration, also without the need to extra sealing and position limiting structure, greatly reduce required number of components, structure is simple, good reliability, practical, be particularly suitable for using on the higher electric industry vehicle of noise requirements.
Be not limited to this, any change of expecting without creative work or replacement, all should be encompassed within protection domain of the present utility model.Therefore, the protection domain that protection domain of the present utility model should limit with claims is as the criterion.
Claims (2)
1. the all-hydraulic steering gear with low noise safety valve, it is characterized in that, the all-hydraulic steering gear (1) of described band low noise safety valve comprises a valve body (2), a valve core channel (3) and a valve base channel (4) is provided with in described valve body (2), described valve core channel (3) and an injection channel (5) connect, described valve base channel (4) and a flow pass (6) connect, be provided with in described valve core channel (3) one can be laterally movable spool (7), be provided with in described valve base channel (4) one can be laterally movable valve seat (9), a retracing spring (8) is provided with between described spool (7) and described valve seat (9), the top of described spool (7) is provided with an accurate steel balls (11), described accurate steel balls (11) is arranged on the top of described valve core channel (3), described spool (7) comprises the core body (71) of a dumbbell shaped, the head of described core body (71) is provided with a columned sealing cylinder (72), the sidewall of described sealing cylinder (72) is provided with a piezometer ring groove array be made up of the piezometer ring groove (721) of annular, the afterbody of described core body (71) is provided with the spring stop piece (73) of an annular, described spring stop piece (73) matches with described retracing spring (8), the middle part of described core body (71) is provided with an equal pressure passageway (74) run through, described valve seat (9) comprises a columned pedestal (91), the head of described pedestal (91) is provided with a spring column cap (92), described spring column cap (92) matches with described retracing spring (8), the afterbody of described pedestal (91) is provided with the closure gasket groove (93) of an annular, a detouchable O-ring seal (10) is provided with in described closure gasket groove (93).
2. the all-hydraulic steering gear of band low noise safety valve according to claim 1, is characterized in that, the bottom of described equal pressure passageway (74) is provided with a damping hole (741).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520831393.0U CN205059724U (en) | 2015-10-26 | 2015-10-26 | Take full hydraulic steering of low noise relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520831393.0U CN205059724U (en) | 2015-10-26 | 2015-10-26 | Take full hydraulic steering of low noise relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205059724U true CN205059724U (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520831393.0U Active CN205059724U (en) | 2015-10-26 | 2015-10-26 | Take full hydraulic steering of low noise relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205059724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015178A (en) * | 2016-08-05 | 2016-10-12 | 芜湖中意液压科技股份有限责任公司 | Full-hydraulic steering gear with compact safety valve |
-
2015
- 2015-10-26 CN CN201520831393.0U patent/CN205059724U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015178A (en) * | 2016-08-05 | 2016-10-12 | 芜湖中意液压科技股份有限责任公司 | Full-hydraulic steering gear with compact safety valve |
| CN106015178B (en) * | 2016-08-05 | 2018-01-30 | 芜湖中意液压科技股份有限责任公司 | All-hydraulic steering gear with compact safety valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |