CN209325112U - A kind of unidirectional speed regulation screw-in cartridge valve - Google Patents
A kind of unidirectional speed regulation screw-in cartridge valve Download PDFInfo
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- CN209325112U CN209325112U CN201920072641.6U CN201920072641U CN209325112U CN 209325112 U CN209325112 U CN 209325112U CN 201920072641 U CN201920072641 U CN 201920072641U CN 209325112 U CN209325112 U CN 209325112U
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- screw
- adjustment screw
- droop adjustment
- centre bore
- droop
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Abstract
A kind of unidirectional speed regulation screw-in cartridge valve, including sealing nut, droop adjustment screw, holding screw, spring and steel ball, sealing nut is threadedly connected on droop adjustment screw, upper and lower centre bore is equipped in the middle part of droop adjustment screw, droop adjustment screw lower end is pyramidal structure, be located in the centre bore of droop adjustment screw is inclined hole at pyramidal structure bottom edge, steel ball is placed in droop adjustment screw centre bore, it is located at steel ball top in droop adjustment screw centre bore and spring is installed, is located at spring top in droop adjustment screw centre bore and is threadedly coupled holding screw.The unidirectional speed regulation screw-in cartridge valve of the utility model, by structures such as droop adjustment screw, holding screw, steel ball and springs, reversed quick start function can be reconciled by so that oil cylinder is had both end buffering, solve the problems, such as that oil cylinder reverse starting is slow-footed.
Description
Technical field
The utility model relates to adjustable cushion cylinder technical fields.
Background technique
Speed governing valve plays a crucial role on adjustable cushion cylinder, the buffer speed of oil cylinder need by speed governing valve Lai
Control is adjusted, working equipment especially high to multiple oil cylinder synchronization job precision prescribeies plays the role of vital.
Now there is two kinds of forms, a kind of oil cylinder for only conventional speed governing valve, the form in conventional adjustable cushion cylinder substantially
It cannot achieve unidirectional speed-regulating function, so that oil cylinder be made to have the shortcomings that opening speed is slow, starting pressure is high.
The oil cylinder that another kind is used cooperatively for a conventional speed governing valve and a check valve, the form may be implemented unidirectionally to adjust
Fast function, but oil cylinder valve seat orifice is more, oil circuit is more, structure is complicated, manufacturing cost is high.
Utility model content
The utility model provides a kind of unidirectional speed regulation screw-in cartridge valve, and speed governing valve and check valve is integrated, can
Realize unidirectional speed-regulating function, and it is more to improve oil cylinder valve seat orifice, the disadvantage more than oil circuit.
The utility model technical solution used for the above purpose is: a kind of unidirectional speed regulation screw-in cartridge valve, packet
Sealing nut, droop adjustment screw, holding screw, spring and steel ball are included, sealing nut is threadedly connected on droop adjustment screw, droop adjustment screw
Middle part is equipped with upper and lower centre bore, and droop adjustment screw lower end is pyramidal structure, is located at pyramidal structure bottom in the centre bore of droop adjustment screw
It is inclined hole at side, steel ball is placed in droop adjustment screw centre bore, and steel ball top is located in droop adjustment screw centre bore and installs spring, is adjusted
It is located at spring top in fast screw centre bore and is threadedly coupled holding screw.
The sealing nut is made of metal outer-hexagonal flange nut and polyamide, and polyamide is heat-fused in metal
Threaded hole edge on the downside of outer-hexagonal flange nut, polyamide medial surface are equipped with identical with metal outer-hexagonal flange nut
Internal screw thread.
Filling with sealant between the droop adjustment screw and holding screw.
The unidirectional speed regulation screw-in cartridge valve of the utility model is tied by droop adjustment screw, holding screw, steel ball and spring etc.
Structure, reversed quick start function can be reconciled by so that oil cylinder is had both end buffering, solve the problems, such as that oil cylinder reverse starting is slow-footed.
Detailed description of the invention
Fig. 1 is that the utility model unidirectionally adjusts the speed screw-in cartridge valve main view sectional structure chart.
Fig. 2 is that the utility model unidirectionally adjusts the speed screw-in cartridge valve sealing nut main structure figure.
Fig. 3 is that the utility model unidirectionally adjusts the speed screw-in cartridge valve assembly structure figure.
In figure: 1, sealing nut, 2, droop adjustment screw, 3, holding screw, 4, paralysis, 5, steel ball, 6, sealant, 7, inclined hole,
1.1, metal outer-hexagonal flange nut, 1.2, polyamide.
Specific embodiment
The unidirectional speed regulation thread cartridge valve arrangement of the utility model as shown in Figure 1, include sealing nut 1, droop adjustment screw 2,
Holding screw 3, cylindroid helical-coil compression spring 4, chromium plating steel ball 5, sealing nut 1 is by metal outer-hexagonal flange nut 1.1 and polyamides
1.2 hot melt adhesive of polyimide resin is integrated, and polyamide 1.2 is heat-fused in 1.1 downside screw thread hole edge of metal outer-hexagonal flange nut
At edge, equally internal screw thread of the processing as nut of polyamide 1.2 after hot melt.Droop adjustment screw 2 and 1 screw thread of sealing nut connect
It connects, when the inserting of the utility model speed governing valve is to after corresponding to valve seat orifice, polyamide 1.2 is compressed in speed regulation as sealing material
Between 2 external screw thread of screw and valve seat orifice internal screw thread, sealing function is played, prevents hydraulic oil from revealing from the screw thread pair.Chromium plating steel ball 5
It is placed in 2 centre bore of droop adjustment screw, is extruded in the intermediate inclined hole of droop adjustment screw 2 by spring 4, one-way flow is played to hydraulic oil
Logical, reversed cut-off effect.Holding screw 3 is screwed in 2 inner hole of droop adjustment screw, and spring 4 and chromium plating steel ball 5 are extruded in droop adjustment screw
It in 2 mesoporous, and is sealed between 3 screw thread pair of droop adjustment screw 2 and holding screw with thread locking adhesive, prevents oil liquid among screw thread pair
Pass through.
As shown in figure 3, flowed into from B mouthfuls when hydraulic oil, by speed governing valve from when A mouthfuls of outflows, in the driving of spring 4 and oil pressure
Under, chromium plating steel ball 5 blocks 2 inner hole of droop adjustment screw, so that oil liquid is cannot pass through chromium plating steel ball 5 and flows out from 2 centre bore of droop adjustment screw.
Oil liquid can only pass through from the gap between 2 front end tapered slope of droop adjustment screw and valve seat orifice inclined-plane, be limited using crevice throttle principle
Hydraulic fluid flow rate changes gap size by turn-knob droop adjustment screw 2, realizes that flow adjusts control.
When hydraulic oil is flowed into from A mouthfuls, by speed governing valve from when B mouthfuls of outflows, oil liquid is in addition to can be from 2 front-end-cone of droop adjustment screw
Except gap between shape inclined-plane and valve seat orifice inclined-plane passes through, oil liquid can also push chromium plating steel ball 5 to resist bullet under pressure
4 elastic force of spring extends radially through hole by droop adjustment screw 2 so that most of oil liquid enters from 2 centre bore of droop adjustment screw, flows from B mouthfuls
Out, to play the function of not limit flow.
The utility model is described by embodiment, and those skilled in the art know, practical new not departing from this
In the case where the spirit and scope of type, various changes or equivalence replacement can be carried out to these features and embodiment.In addition, at this
Under the introduction of utility model, it can modify to these features and embodiment to adapt to particular situation and material without taking off
Spirit and scope from the utility model.Therefore, the utility model is not limited to the particular embodiment disclosed, and is owned
The embodiment fallen within the scope of claims hereof belongs to the protection scope of the utility model.
Claims (3)
1. a kind of unidirectional speed regulation screw-in cartridge valve, it is characterised in that: including sealing nut (1), droop adjustment screw (2), holding screw
(3), spring (4) and steel ball (5), sealing nut (1) are threadedly connected on droop adjustment screw (2), are equipped in the middle part of droop adjustment screw (2) upper
Under centre bore, droop adjustment screw lower end is pyramidal structure, and it is oblique for being located at pyramidal structure bottom edge in the centre bore of droop adjustment screw (2)
Hole (7), steel ball (5) are placed in droop adjustment screw (2) centre bore, and steel ball (5) top is located in droop adjustment screw (2) centre bore and is installed
Spring (4), interior spring (4) top that is located at of droop adjustment screw (2) centre bore are threadedly coupled holding screw (3).
2. a kind of unidirectional speed regulation screw-in cartridge valve according to claim 1, it is characterised in that: the sealing nut (1) by
Metal outer-hexagonal flange nut (1.1) and polyamide (1.2) are constituted, and polyamide (1.2) is heat-fused in metal outer-hexagonal
Threaded hole edge on the downside of flange nut (1.1), polyamide (1.2) medial surface are equipped with and metal outer-hexagonal flange nut
(1.1) identical internal screw thread.
3. a kind of unidirectional speed regulation screw-in cartridge valve according to claim 1, it is characterised in that: the droop adjustment screw (2) and
Filling with sealant (6) between holding screw (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920072641.6U CN209325112U (en) | 2019-01-17 | 2019-01-17 | A kind of unidirectional speed regulation screw-in cartridge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920072641.6U CN209325112U (en) | 2019-01-17 | 2019-01-17 | A kind of unidirectional speed regulation screw-in cartridge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209325112U true CN209325112U (en) | 2019-08-30 |
Family
ID=67731365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920072641.6U Active CN209325112U (en) | 2019-01-17 | 2019-01-17 | A kind of unidirectional speed regulation screw-in cartridge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209325112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654261A (en) * | 2019-01-17 | 2019-04-19 | 大连诺美液压件有限公司 | A kind of unidirectional speed regulation screw-in cartridge valve |
-
2019
- 2019-01-17 CN CN201920072641.6U patent/CN209325112U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654261A (en) * | 2019-01-17 | 2019-04-19 | 大连诺美液压件有限公司 | A kind of unidirectional speed regulation screw-in cartridge valve |
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