CN204755452U

CN204755452U - Hydraulic means

Info

Publication number: CN204755452U
Application number: CN201520469301.9U
Authority: CN
Inventors: 马光辉
Original assignee: XUCHANG HENGJI MACHINERY CO Ltd
Current assignee: XUCHANG HENGJI MACHINERY CO Ltd
Priority date: 2015-07-03
Filing date: 2015-07-03
Publication date: 2015-11-11
Anticipated expiration: 2025-07-03

Abstract

The utility model relates to a hydraulic means, it includes the hydrovalve, the hydrovalve casing has, have a first passageway about running through on the casing, first passageway has zuo kou and youkou, has a second channel that runs through from top to bottom on the casing, first passageway and second channel intersect into the cavity of " ten " word structure, the second channel be lower passageway below " ten " word structure, have the electro -magnet on the second channel, have below the electro -magnet and to follow gliding case about the second channel, have the first spring that supports the case below the case, be the export of passageway down below the second channel, the case in the middle of be the nape part that attenuates, have below the case one below the cooperation second channel the sealing ring, the side gap has below the sealing ring, have the control electro -magnet and just can control down whether lining up of passageway and first passageway, it still has simple structure, advantage with low costs.

Description

A kind of hydraulic pressure installation

Technical field

The utility model relates to hydraulic pressure installation, and it is widely used in some machinery equipments, and such as Bending machines, guillotine shear are first-class.

Background technique

In prior art, hydraulic pressure installation is varied, but it has complex structure, shortcoming that cost is higher, so just causes hydrovalve easily to damage, and in price, user is difficult to accept.

Summary of the invention

The purpose of this utility model is exactly for above-mentioned shortcoming, provides the hydraulic pressure installation that a kind of structure is simple, cost is low.

The technical solution of the utility model is achieved in that a kind of hydraulic pressure installation, it is characterized in that: it comprises hydrovalve, described hydrovalve has housing, housing has a first passage running through left and right, first passage has Zuo Kou and You Kou, housing has about one second channel run through, first passage and second channel are crossed as the cavity of " ten " word structure, described second channel is lower channel below " ten " word structure, there is electromagnet in face on a second pass, the spool that can slide up and down along second channel is had below electromagnet, the first spring supporting spool is had below spool, it is the outlet of lower channel below second channel,

The neck neck portion attenuated in the middle of described spool, there is the seal ring below a cooperation second channel below spool, below seal ring, there is side slit, when spool is in free state, first passage left and right is through, seal ring depart from lower channel, the existence due to gap make first passage and lower channel through, when solenoid valves, solenoid valve produces thrust, and spool runs downwards, and seal ring is by first passage and lower channel isolation.

It also comprises the oil cylinder of an individual event effect, and described oil cylinder has cavity, and cavity has import, is provided with the valve of the second spring action in inlet, and described oil cylinder has piston.

Say above the neck neck portion of described spool, to there is ramp structure, there is mesa-shaped structure further below.

Say further, it also comprises an oil pump, and described oil pump has oil sump tank, and described lower channel is communicated with oil sump tank.

The beneficial effects of the utility model are:

Such hydraulic pressure installation has and controls electromagnet and just can control the whether through of lower channel and first passage, because lower channel takes back oil pipe, the conveying liquid transmission of pressure (work done) of pressure can be realized or there is no the conveying liquid not transmission of pressure (free-flow of pressure, not work done), have and control advantage easily, structure is simple, cost is low advantage that it also has;

It also comprises the oil cylinder of an individual event effect, and described oil cylinder has cavity, and cavity has import, be provided with the valve of the second spring action in inlet, described oil cylinder has piston, like this when the hydraulic fluid entering this oil cylinder has pressure, it can be opened automatically, and piston runs, external work done;

Above the neck neck portion of described spool, there is ramp structure, there is mesa-shaped structure below, also there is the advantage of self-protection;

It also comprises an oil pump, and described oil pump has oil sump tank, and described lower channel is communicated with oil sump tank, also has the advantage that system is more complete.

Accompanying drawing explanation

Fig. 1 structural representation of the present utility model.

Wherein: 1, housing 2, first passage 3, left mouth 4, right mouth 5 second channel 6, lower channel 7, electromagnet 8, spool 9, first spring 10, reflux line 11, neck neck portion 12, seal ring 13, side slit 14, oil cylinder 15, second spring 16, oil pump.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described further.

As shown in Figure 1, a kind of hydraulic pressure installation, it is characterized in that: it comprises hydrovalve, described hydrovalve has housing 1, housing has a first passage 2 running through left and right, first passage has left mouth 3 and right mouth 4, housing has about one second channel run through 5, first passage and second channel are crossed as the cavity of " ten " word structure, described second channel is lower channel 6 below " ten " word structure, there is electromagnet 7 in face on a second pass, the spool 8 that can slide up and down along second channel is had below electromagnet, the first spring 9 supporting spool is had below spool, it is the outlet of lower channel 6 below second channel,

The neck neck portion 11 attenuated in the middle of described spool, the seal ring 12 below a cooperation second channel is had below spool, there is side slit 13 below seal ring, when spool is in free state, namely when electromagnet does not act on, about first passage, due to neck neck portion, left and right is through, seal ring departs from lower channel, due to gap make first passage and lower channel through, at this moment its inner formation three links: link of trade, travel and post, during use, electromagnet connects control gear, lower channel takes back fuel tank through reflux line 10, first passage right-hand member connects oil pump 16, left end connects the parts (such as oil cylinder) needing work done, because lower channel takes back fuel tank, even if first passage one end has pressure to pass over, also hydraulic fluid can be become because oil sump tank does not have pressure and there is no pressure, at this moment hydraulic fluid just can not work done, when the solenoid is energized, electromagnet produces thrust, spool runs downwards, seal ring is by first passage and lower channel isolation, at this moment hydraulic fluid can only run at first passage, at this moment hydraulic fluid has pressure to transmit, and controls the working condition that electromagnet just can control this hydrovalve like this, has advantage of the present utility model.

When at this moment using, right mouth connects oil pump 16, left mouth connects oil cylinder, when electromagnet does not pass into power supply, electromagnet does not have magnetic, also can not act on and spool, at this moment, first passage left and right is through, and the seal ring of spool is on lower channel top-open, side slit 13 can cause the threeway of lower channel and first passage, again due to the setting of individual event action oil cylinder second spring 15, hydraulic oil is when the effect lower than the second spring strength, and hydraulic fluid does not enter this oil cylinder, the oil cylinder of at this moment individual event effect can not work done, and the hydraulic oil entered from You Kou refluxes at lower channel; If make oil cylinder work done, electromagnet switches on power, and the effect of electromagnet makes spool moves, and lower channel seals by the seal ring of spool, can not form threeway, can realize hydraulic fluid to oil cylinder in work done, have advantage of the present utility model by magnet control.

Further, it also comprises the oil cylinder 14 of an individual event effect, described oil cylinder has cavity, cavity has import, be provided with the valve of the second spring 15 effect in inlet, described oil cylinder has piston, during use, described piston connects the position that outside needs power, can realize external work done.

Like this; when seal ring closes lower channel, because the area below neck neck portion is less than area above, the hydraulic fluid pressure acted on below is less than pressure above; along with the rising of enclosure interior pressure; their pressure difference just increases, and increases to certain pressure reduction, spool just on move; lower channel is got through; pressure release, plays the effect of protection hydrovalve, and then protection whole system.

Say further, it also comprises an oil pump 16, and described oil pump has oil sump tank, and described reflux line is communicated with oil sump tank, and such system is more complete, and rear road is installed and used more convenient.

The foregoing is only specific embodiment of the utility model, but structure characteristic of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the change done or modification are all encompassed in the scope of the claims of the present utility model.

Claims

1. a hydraulic pressure installation, it is characterized in that: it comprises hydrovalve body, described hydrovalve body has housing, housing has a first passage running through left and right, first passage has Zuo Kou and You Kou, housing has about one second channel run through, first passage and second channel are crossed as the cavity of " ten " word structure, described second channel is lower channel below " ten " word structure, there is electromagnet in face on a second pass, the spool that can slide up and down along second channel is had below electromagnet, the first spring supporting spool is had below spool, it is the outlet of lower channel below second channel,

2. hydraulic control device according to claim 1, it is characterized in that: further comprising the oil cylinder of an individual event effect, and described oil cylinder has cavity, and cavity has import, is provided with the valve of the second spring action in inlet, and described oil cylinder has piston.

3. hydraulic control device according to claim 1 and 2, is characterized in that: have ramp structure above the neck neck portion of described spool, have mesa-shaped structure below.

4. hydraulic control device according to claim 1 and 2, it is characterized in that: further comprising an oil pump, described oil pump has oil sump tank, and described lower channel is communicated with oil sump tank.