CN205190411U - Automatic prefill valve of two effects - Google Patents
Automatic prefill valve of two effects Download PDFInfo
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- CN205190411U CN205190411U CN201521013957.6U CN201521013957U CN205190411U CN 205190411 U CN205190411 U CN 205190411U CN 201521013957 U CN201521013957 U CN 201521013957U CN 205190411 U CN205190411 U CN 205190411U
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Abstract
The utility model provides an automatic prefill valve of two effects, includes double -acting cylinder, and the safety cover is installed on double -acting cylinder's upper portion, and double -acting cylinder links into an integrated entity through connecting piece and valve port device, and the cover is equipped with the support ring on double -acting cylinder's the piston rod, installs hydro -cylinder reset spring in the cavity that support ring and valve port device are formed, and valve port device below is the press master cylinder, and the flange is through the screw with the prefill valve connecing on press master cylinder terminal surface, under double -acting cylinder's effect, not only the topping up case is closed reliably, has reduced the frequent action of press in addition and the impact force that produces, this life who has lengthened the prefill valve greatly, and its compact structure, easy maintenance have improved the working property of press. Hydro -cylinder reset spring's setting has guaranteed that press prefill valve when the inoperative is in the closed condition.
Description
Technical field
The utility model relates to the forging equipment liquid-filling valve in metal forging machinery industry, particularly a kind of double-action automatic liquid feeding valve of hydraulic press, horizontal forging machine and end upsetting owner cylinder.
Background technique
Hydraulic press, horizontal forging machine and end upsetting machine are in order to realize large-tonnage, worktable fast up-down function, and master cylinder generally adopts plunger case.During work, master cylinder is driven by kicker cylinder and realizes fast lifting, and fluid during rise in master cylinder needs to discharge fast, forms cavity, need a large amount of fluid to supplement, be all provided with liquid-filling valve like this at oil cylinder end face during decline in master cylinder.Prior art is that valve port opens the driving of employing hydraulic oil, close and adopt spring reset, due to the increase of compressor operation pressure, the impact force of topping up spool will be increasing, not only can cause the damage of liquid-filling valve valve port, and the fatigue ruption of Returnning spring can be aggravated, greatly have impact on the service behaviour of above press.If there is the situation that oil cylinder Returnning spring damages, the Returnning spring of topping up spool will be difficult to overcome piston rod resistance and open liquid-filling valve, thus affect the normal operation of press.
Summary of the invention
In order to overcome the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of double-action automatic liquid feeding valve, and this liquid-filling valve is not when controlling fluid, and oil cylinder automatically resets under the effect of Returnning spring, automatically can close liquid-filling valve.
In order to achieve the above object, the technical solution of the utility model is:
A kind of double-action automatic liquid feeding valve; comprise two-way cylinder 1; the top of two-way cylinder 1 is provided with safety cover 2; two-way cylinder 1 is linked into an integrated entity by link 3 and valve port device 7; the piston rod 105 of two-way cylinder 1 is set with support ring 4; being provided with oil cylinder Returnning spring 5 in the cavity that support ring 4 and valve port device 7 form, is press master cylinder 8 below valve port device 7, and liquid-filling valve handle is connected on press master cylinder 8 end face by screw 9 by flange 6.
Described two-way cylinder 1 comprises cylinder body 108, in cylinder body 108 inner chamber, piston rod 105 is installed, piston rod 105 is provided with Sealing 104 and forms size two chambeies, large chamber is communicated with large chamber joint 101, loculus is communicated with loculus joint 106, cylinder body 108 is socketed with connecting plate 107, connecting plate 107 is connected to cylinder bottom 102 by attachment screw 103 handle.
Described valve port device 7 comprises guide sleeve 607, guide sleeve 607 is placed on valve seat 606, liquid-filling valve core 605 is set with in guide sleeve 607 and valve seat 606, guide sleeve 607 outer surface is set with spring seat 604, spring wedge 602 is contained in female connector on topping up spool 605 by lining 601, and valve port Returnning spring 603 is arranged in the cavity that is made up of spring wedge 602 and spring seat 604.
Lining 601 is split type structure, is assembled into one by screw 608 and spring wedge 602.
The utility model has the advantages that: this liquid-filling valve compact structure, easy to maintenance, under the effect of two-way cylinder, not only topping up spool is closed reliable, and the impact force decreasing press frequent movement and produce, this substantially prolongs the working life of liquid-filling valve, improve the service behaviour of press.The setting of oil cylinder Returnning spring, ensure that press liquid-filling valve when inoperative is in closed condition.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model two-way cylinder 1 structural representation.
Fig. 3 is the utility model valve port device 7 structural representation.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.
As shown in Figure 1, a kind of double-action automatic liquid feeding valve, comprises two-way cylinder 1, and the top of two-way cylinder 1 is provided with safety cover 2, and its effect is that when preventing press rapid movement, fluid upwards sprays; Two-way cylinder 1 is linked into an integrated entity by link 3 and valve port device 7, the piston rod 105 of two-way cylinder 1 is set with support ring 4, in the cavity that support ring 4 and valve port device 7 form, oil cylinder Returnning spring 5 is installed, be press master cylinder 8 below valve port device 7, liquid-filling valve handle is connected on press master cylinder 8 end face by screw 9 by flange 6.
As shown in Figure 2, described two-way cylinder 1 comprises cylinder body 108, in cylinder body 108 inner chamber, piston rod 105 is installed, piston rod 105 is provided with Sealing 104 and forms size two chambeies, large chamber is communicated with large chamber joint 101, loculus is communicated with loculus joint 106, cylinder body 108 is socketed with connecting plate 107, and connecting plate 107 is connected to cylinder bottom 102 by attachment screw 103 handle.
As shown in Figure 3, described valve port device 7 comprises guide sleeve 607, guide sleeve 607 is placed on valve seat 606, liquid-filling valve core 605 is set with in guide sleeve 607 and valve seat 606, guide sleeve 607 outer surface is set with spring seat 604, spring wedge 602 is contained in female connector on topping up spool 605 by lining 601, and valve port Returnning spring 603 is arranged in the cavity that is made up of spring wedge 602 and spring seat 604.
Described lining 601 is split type structure, is assembled into one, is convenient to installation and the maintenance of equipment by screw 608 and spring wedge 602.
Working principle of the present utility model is:
During topping up work, large cavity is by large chamber joint 101 feed liquor, little cavity by loculus joint 106 discharge opeing, and piston rod 105 descending promotion topping up spool 605 moves downward, and form cavity between piston rod 105 lower end and valve seat 606, liquid-filling valve is opened; When stopping topping up, loculus feed liquor, large chamber discharge opeing, piston rod 105 is up, and topping up spool 605 moves upward under the effect of valve port Returnning spring 603, and piston rod 105 lower end and valve seat 606 are fitted, and liquid-filling valve cuts out; In filling process, when large and small chamber does not all control fluid, piston rod 105 rises under the effect of oil cylinder Returnning spring 5, and topping up spool 605 moves upward under the effect of valve port Returnning spring 603, piston rod 105 lower end and valve seat 606 are fitted, and liquid-filling valve cuts out automatically.
This liquid-filling valve compact structure, easy to maintenance, under the effect of two-way cylinder, not only topping up spool is closed reliable, and the impact force decreasing press frequent movement and produce, and this substantially prolongs the working life of liquid-filling valve, improves the service behaviour of press.The setting of oil cylinder Returnning spring, ensure that press liquid-filling valve when inoperative is in closed condition.
The structure of existing press and master cylinder is discussed no longer in detail.
The parts that the present embodiment is not discussed in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (5)
1. a double-action automatic liquid feeding valve, it is characterized in that, comprise two-way cylinder (1), the top of two-way cylinder (1) is provided with safety cover (2), two-way cylinder (1) is linked into an integrated entity by link (3) and valve port device (7), the piston rod (105) of two-way cylinder (1) is set with support ring (4), in the cavity that support ring (4) and valve port device (7) form, oil cylinder Returnning spring (5) is installed, valve port device (7) below is press master cylinder (8), liquid-filling valve handle is connected on press master cylinder (8) end face by screw (9) by flange (6).
2. a kind of double-action automatic liquid feeding valve according to claim 1, is characterized in that, the top of two-way cylinder (1) is provided with safety cover (2).
3. a kind of double-action automatic liquid feeding valve according to claim 1, it is characterized in that, described two-way cylinder (1) comprises cylinder body (108), piston rod (105) is installed in cylinder body (108) inner chamber, piston rod (105) is provided with Sealing (104) and forms size two chambeies, large chamber is communicated with large chamber joint (101), loculus is communicated with loculus joint (106), cylinder body (108) is socketed with connecting plate (107), on connecting plate (107) by attachment screw (103) being connected to cylinder bottom (102).
4. a kind of double-action automatic liquid feeding valve according to claim 1, it is characterized in that, described valve port device (7) comprises guide sleeve (607), guide sleeve (607) is placed on valve seat (606), liquid-filling valve core (605) is set with in guide sleeve (607) and valve seat (606), guide sleeve (607) outer surface is set with spring seat (604), spring wedge (602) is contained in female connector on topping up spool (605) by lining (601), valve port Returnning spring (603) is arranged in the cavity that is made up of spring wedge (602) and spring seat (604).
5. a kind of double-action automatic liquid feeding valve according to claim 4, it is characterized in that, lining (601) is split type structure, is assembled into one by screw (608) and spring wedge (602).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521013957.6U CN205190411U (en) | 2015-12-08 | 2015-12-08 | Automatic prefill valve of two effects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521013957.6U CN205190411U (en) | 2015-12-08 | 2015-12-08 | Automatic prefill valve of two effects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190411U true CN205190411U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521013957.6U Active CN205190411U (en) | 2015-12-08 | 2015-12-08 | Automatic prefill valve of two effects |
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| Country | Link |
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| CN (1) | CN205190411U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402185A (en) * | 2015-12-08 | 2016-03-16 | 中国重型机械研究院股份公司 | Double-acting prefill valve |
| CN108730252A (en) * | 2018-06-19 | 2018-11-02 | 韶关液压件厂有限公司 | A kind of ultra-high pressure high flow prefill valve |
-
2015
- 2015-12-08 CN CN201521013957.6U patent/CN205190411U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402185A (en) * | 2015-12-08 | 2016-03-16 | 中国重型机械研究院股份公司 | Double-acting prefill valve |
| CN108730252A (en) * | 2018-06-19 | 2018-11-02 | 韶关液压件厂有限公司 | A kind of ultra-high pressure high flow prefill valve |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |