CN202284649U - Replenishing valve of tile hydraulic press - Google Patents
Replenishing valve of tile hydraulic press Download PDFInfo
- Publication number
- CN202284649U CN202284649U CN2011204075935U CN201120407593U CN202284649U CN 202284649 U CN202284649 U CN 202284649U CN 2011204075935 U CN2011204075935 U CN 2011204075935U CN 201120407593 U CN201120407593 U CN 201120407593U CN 202284649 U CN202284649 U CN 202284649U
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- piston
- spool
- control
- baffle plate
- oil cavity
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Abstract
The utility model provides a replenishing valve of a tile hydraulic press, which includes a replenishing valve core and a replenishing valve seat, and further includes a control piston and a valve core baffle arranged above the replenishing valve core and fixedly connected with the replenishing valve. The control piston comprises a piston rod, and a piston head arranged above the piston rod and fixedly connected with the piston rod; the control piston and the valve core baffle are sequentially arranged in upper and lower piston cylinders, both of which are independent mutually; the bottom end of the piston rod extends into the piston cylinder, where the valve core baffle is arranged, and is placed right above the valve core baffle to form a clearance between the bottom end of the piston rod and the valve core baffle; an oil cavity is arranged above the piston head; an annular oil cavity I is arranged under the piston head; an annular hollow cavity is arranged under the valve core baffle, and serves as an annular oil cavity II; a control oil path I has the control connection with the oil cavity; and a control oil path II has the control connection with the annular oil cavity I and the annular oil cavity II. The replenishing valve has a simple structure, is easy to process, and has better reliability in work.
Description
Technical field
The utility model relates to the technical field of hydraulic press, more particularly, relates to a kind of liquid-filling valve of ceramic tile hydraulic press.
Background technique
Liquid-filling valve is one of most important work parts in ceramic tile automatic hydraulic machine hydraulic system, and it mainly acts on is when the working solution cylinder pressure advances fast or retreats, to open, and makes working oil chamber charge into or discharge fluid fast; And when the working hydraulic pressure cylinder working, can close reliably, guarantee that working oil chamber can carry out pressurized operation.The F.F. of oil hydraulic cylinder, pressurize, pressure release and backhaul action all must have liquid-filling valve to participate in accomplishing.Therefore, the structure of liquid-filling valve, flow channel shape and hydraulic control system thereof are crucial to the speed that improves press idle running quick control and backhaul, and the service behaviour to hydraulic press also has crucial effects simultaneously.
The inner structural type that adopts of liquid-filling valve can directly influence the compacting number of times and the manufacturing efficiency of brick machine, and one of key problem of this current just ceramic tile automatic hydraulic press development.Mainly contain two kinds of structural types in the existing liquid-filling valve: a kind of is to adopt spool list spring structure, and the spool of this structure overcomes the effect of spring force and opens under the effect of descent of piston, form the gap with the topping up valve seat, and fluid charges in the operating cylinder from top tank; When the needs liquid-filling valve cut out, control oil cylinder cavity of resorption advanced pressure oil epicoele oil extraction simultaneously, and piston stroking upward, topping up spool are up under the spring force effect to touch sealing with the liquid-filling valve seated connection, and the operating cylinder oil pocket can seal and pressurize.
Another kind is the structure that adopts no Returnning spring formula, is characterized in that the topping up spool and the piston rod of control oil cylinder are fixed together, and has saved the Returnning spring of spool, and control oil cylinder and topping up valve seat are compound to be one, and basic part has reduced, and overall structure is simple.
Because liquid-filling valve is mounted in press body and the inner component of oil cylinder, cost is high during maintenance operation, dead time is long; Therefore the reliability of liquid-filling valve work is just extremely important.The liquid-filling valve that adopts spool list spring structure is because the motion of high frequency high capacity, causes the be rigidly connected destruction of stress raiser of spring fatigue fracture and piston and topping up spool easily, lacks the working life of liquid-filling valve, rate of fault is high.Though adopt the liquid-filling valve of no Returnning spring formula structure simple in structure, the topping up spool is that overall structure strengthens the production and processing difficulty with the piston rod of control oil cylinder, increases cost of production simultaneously.Therefore, need be optimized design to existing liquid-filling valve, to improve the stability and the reliability of work.
The model utility content
The purpose of the utility model is to overcome shortcoming of the prior art with not enough, provide a kind of simple in structure, difficulty of processing is little, functional reliability is high, the liquid-filling valve of the ceramic tile hydraulic press of long service life, all-hydraulic control.
In order to achieve the above object, the utility model is achieved through following technical proposals: a kind of liquid-filling valve of ceramic tile hydraulic press comprises topping up spool, topping up valve seat; It is characterized in that: also comprise control piston and the spool baffle plate that is arranged at topping up spool top and is fixedly connected with it; Said control piston by piston rod be positioned at the piston crown that piston rod top is fixedly connected with piston rod and form; Said control piston and spool baffle plate are arranged in two up and down separate piston cylinders successively, and the bottom of said piston rod is stretched in the piston cylinder at spool baffle plate place and is positioned at the top of spool baffle plate, and is gapped between the bottom of piston rod and the said spool baffle plate; The inwall of the piston cylinder at said spool baffle plate and its place is slidingly matched;
In the piston cylinder at control piston place: the top of piston crown is provided with the oil pocket that basal area equals its upper-end surface; It is the annular oil cavity one of interior ring that the below of said piston crown is provided with the piston rod outer circumferential face, and the outer ring diameter of said annular oil cavity one equals the diameter of said piston crown upper-end surface; Control oil channel one and oil pocket control connection;
One section of said spool baffle plate and topping up spool top is arranged in same piston cylinder; In the piston cylinder at spool baffle plate place: it is the annular oil cavity two of interior ring that the below of spool baffle plate is provided with topping up spool outer circumferential face, and the outer ring diameter of said annular oil cavity two equals the diameter of said spool baffle plate upper-end surface; Two whiles of control oil channel and annular oil cavity one and annular oil cavity two control connections.
Through above-mentioned technological scheme, the separate design of control piston and topping up spool, can obtain a kind of simple in structure, the liquid-filling valve of the ceramic tile hydraulic press that difficulty of processing is little.The topping up spool of the utility model and the separation structure of control piston need a gap as buffer area between the two, and both are interacted under the promotion of pressure oil, play buffer function.Liquid-filling valve is through the effect of control oil channel one and two pairs of pressure oils of control oil channel, and then control control piston and topping up spool, makes its interaction, realizes all-hydraulic control.The motion that effect through fluid promotes the topping up spool has farthest reduced mechanical loss, the working stability of raising.
More particularly, said control oil channel two is meant with annular oil cavity one and annular oil cavity two control connections simultaneously: two whiles of control oil channel and hydraulic fluid port that is communicated with annular oil cavity one one and hydraulic fluid port two control connections that are communicated with annular oil cavity two.When control oil channel two oil-feeds, it is up that the pressure oil that gets into annular oil cavity one from hydraulic fluid port one can promote control piston, and the pressure oil that gets into annular oil cavities two from hydraulic fluid port two simultaneously also promotes the upwards operation of topping up spool.
Said hydraulic fluid port one circumferentially distributes along the piston rod in the piston cylinder at said control piston place; Said hydraulic fluid port two circumferentially distributes along the topping up spool in the piston cylinder at said spool baffle plate place.Circumferentially being distributed with of hydraulic fluid port one, hydraulic fluid port two is beneficial to improves the smoothness that topping up spool and control piston move.
Said piston rod and piston crown are integrally formed; Said topping up spool and spool baffle plate are integrally formed.Such compact structure is reasonable, intensity and better reliability.
The working procedure of the utility model is such: 1, open when control oil channel one; From then on pressure oil get into oil pocket; Under the effect of oil pocket internal pressure oil, control piston is descending, and is descending at the piston cylinder inner piston rod at spool baffle plate place; Its bottom promotes spool baffle plate and makes that the topping up spool is descending to be opened, the oil-filled or oil extraction fast of operating cylinder oil pocket; Meanwhile, annular oil cavity one is discharged through control oil channel two with the pressure oil in the annular oil cavity two.2, open when control oil channel two, pressure oil gets into annular oil cavity two from hydraulic fluid port two, and the topping up spool is up under the effect of annular oil cavity two internal pressures oil closes, and in the piston cylinder at spool baffle plate place, the spool baffle plate promotes piston rod and makes upwards operation of control piston; Pressure oil is up from hydraulic fluid port one entering annular oil cavity one promotion control piston simultaneously, and the sealing of operating cylinder oil pocket can be carried out pressurized operation; Meanwhile, the pressure oil in the oil pocket is discharged through control oil channel one.
Compared with prior art, the utlity model has following advantage and beneficial effect:
1, the liquid-filling valve of the ceramic tile hydraulic press of the utility model adopts topping up spool and control piston separated structures; Guaranteeing under the requirement that the hydraulic press stroke is short, quick and the compacting number of times is high; Reduced the production and processing difficulty of parts, this is simple in structure, reduces cost of production.
2, the liquid-filling valve of the utility model mainly relies on hydraulic pressure to realize that the topping up spool opens and closes; The main force bearing point place of hydraulic pressure does not need mechanical connection; Therefore avoid the be rigidly connected mechanical failure of stress raiser destruction of spring fatigue fracture that the motion of liquid-filling valve high frequency high capacity causes or piston and topping up spool, improved the stability and the Security of liquid-filling valve work.
Description of drawings
Fig. 1 is the structural representation of the liquid-filling valve of the utility model.
Among the figure, 1 is the topping up spool; 2 is the topping up valve seat; 4 is piston rod; 5 is piston crown; 6 is the spool baffle plate; 7 piston cylinders for spool baffle plate place; 8 is oil pocket; 9 is annular oil cavity one; 10 is annular oil cavity two; 11 is control oil channel one; 12 is control oil channel two; 13 is hydraulic fluid port one; 14 is hydraulic fluid port two; 15 is the gap; 16 piston cylinders for the control piston place.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Embodiment
The liquid-filling valve structural representation of the utility model is as shown in Figure 1, comprises topping up spool 1, is fixed on the topping up valve seat 2 of press body below.This liquid-filling valve also comprise control piston (by piston rod 4 be positioned at piston rod 4 tops and constitute through the piston crown 5 that screw is fastenedly connected with piston rod 4) with the spool baffle plate 6 that is arranged at topping up spool 1 top and is fixedly connected with it; Control piston and spool baffle plate 6 are arranged in two up and down separate piston cylinders successively, and the bottom of piston rod 4 is stretched in the piston cylinder 7 at spool baffle plate 6 places and is positioned at the top of spool baffle plate 6, between the bottom of piston rod 4 and the spool baffle plate 6 gapped 15.What the utility model liquid-filling valve adopted is topping up spool 1 and control piston separated structures, needs a gap 15 as buffer area between the two, realizes the buffering of both interaction forces.
Piston crown 5 is slidingly matched with the inwall of the piston cylinder 16 at control piston place each other.In the piston cylinder 16 at control piston place: the top of piston crown 5 is provided with the oil pocket 8 that basal area equals its upper-end surface; It is the annular oil cavity 1 of interior ring that the below of piston crown 5 is provided with piston rod 4 outer circumferential faces, and wherein the outer ring diameter of annular oil cavity 1 equals the diameter of piston crown 5 upper-end surfaces.The control oil cylinder is through control oil channel 1 and oil pocket 8 control connections.
One section of spool baffle plate 6 and topping up spool 1 top is arranged in same piston cylinder, and wherein spool baffle plate 6 is slidingly matched with the inwall of the piston cylinder at its place.It is the annular oil cavity 2 10 of interior ring that the below of spool baffle plate 6 is provided with topping up spool 1 outer circumferential face, and wherein the outer ring diameter of annular oil cavity 2 10 equals the diameter of spool baffle plate 6 upper-end surfaces.The control oil cylinder is through 2 12 whiles of control oil channel and annular oil cavity 1 and annular oil cavity 2 10 control connections; Wherein pressure oil is to get into or discharge annular oil cavity 1 from the hydraulic fluid port 1 that is communicated with annular oil cavity 1, gets into or discharge annular oil cavity 2 10 from the hydraulic fluid port 2 14 that is communicated with annular oil cavity 2 10.As shown in Figure 1, hydraulic fluid port 1 circumferentially distributes along the piston rod 4 in the piston cylinder 16 at control piston place; Hydraulic fluid port 2 14 circumferentially distributes along the topping up spool 1 in the piston cylinder 7 at spool baffle plate 6 places.
For the compact structure that makes liquid-filling valve reasonable, intensity and better reliability, the piston rod 4 of the utility model can be integrally formed with piston crown 5, topping up spool 1 also can be integrally formed with spool baffle plate 6.
The liquid-filling valve of the utility model can be realized all-hydraulic control, and its working procedure is such:
1, opens when control oil channel 1; From then on pressure oil in the control oil cylinder get into oil pocket 9, and under the effect of oil pocket 9 internal pressures oil, control piston is descending; Piston cylinder 7 inner piston rods 4 at spool baffle plate 6 places are descending; Its bottom promotes spool baffle plate 6 and makes topping up spool 1 descending opening, topping up spool 1 and topping up valve seat 2 formation gaps, the oil-filled or oil extraction fast of operating cylinder oil pocket; Meanwhile, annular oil cavity 1 is discharged through control oil channel 2 12 with the pressure oil in the annular oil cavity 2 10.
2, open when control oil channel 2 12; Pressure oil in the control oil cylinder gets into annular oil cavity 2 10 from hydraulic fluid port 2 14; Topping up spool 1 up closing under the effect of annular oil cavity 2 10 internal pressures oil; In the piston cylinder 7 at spool baffle plate 6 places, spool baffle plate 6 promotes piston rod 4 and makes upwards operation of control piston; Pressure oil is up from hydraulic fluid port one 13 entering annular oil cavities one 9 promotion control pistons 4 simultaneously, and the sealing of operating cylinder oil pocket can be carried out pressurized operation; Meanwhile, the pressure oil in the oil pocket 9 is discharged through control oil channel 1.
The foregoing description is the utility model preferred implementation; But the mode of execution of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection domain of the utility model.
Claims (4)
1. the liquid-filling valve of a ceramic tile hydraulic press comprises topping up spool, topping up valve seat; It is characterized in that: also comprise control piston and the spool baffle plate that is arranged at topping up spool top and is fixedly connected with it; Said control piston by piston rod be positioned at the piston crown that piston rod top is fixedly connected with piston rod and form; Said control piston and spool baffle plate are arranged in two up and down separate piston cylinders successively, and the bottom of said piston rod is stretched in the piston cylinder at spool baffle plate place and is positioned at the top of spool baffle plate, and is gapped between the bottom of piston rod and the said spool baffle plate; The inwall of the piston cylinder at said spool baffle plate and its place is slidingly matched;
In the piston cylinder at control piston place: the top of piston crown is provided with the oil pocket that basal area equals its upper-end surface; It is the annular oil cavity one of interior ring that the below of said piston crown is provided with the piston rod outer circumferential face, and the outer ring diameter of said annular oil cavity one equals the diameter of said piston crown upper-end surface; Control oil channel one and oil pocket control connection;
One section of said spool baffle plate and topping up spool top is arranged in same piston cylinder; In the piston cylinder at spool baffle plate place: it is the annular oil cavity two of interior ring that the below of spool baffle plate is provided with topping up spool outer circumferential face, and the outer ring diameter of said annular oil cavity two equals the diameter of said spool baffle plate upper-end surface; Two whiles of control oil channel and annular oil cavity one and annular oil cavity two control connections.
2. the liquid-filling valve of ceramic tile hydraulic press according to claim 1 is characterized in that: said control oil channel two is meant with annular oil cavity one and annular oil cavity two control connections simultaneously: two whiles of control oil channel and hydraulic fluid port that is communicated with annular oil cavity one one and hydraulic fluid port two control connections that are communicated with annular oil cavity two.
3. the liquid-filling valve of ceramic tile hydraulic press according to claim 2 is characterized in that: said hydraulic fluid port one circumferentially distributes along the piston rod in the piston cylinder at said control piston place; Said hydraulic fluid port two circumferentially distributes along the topping up spool in the piston cylinder at said spool baffle plate place.
4. the liquid-filling valve of according to claim 1 watt of brick hydraulic press is characterized in that: said piston rod and piston crown are integrally formed; Said topping up spool and spool baffle plate are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204075935U CN202284649U (en) | 2011-10-24 | 2011-10-24 | Replenishing valve of tile hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204075935U CN202284649U (en) | 2011-10-24 | 2011-10-24 | Replenishing valve of tile hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284649U true CN202284649U (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204075935U Expired - Lifetime CN202284649U (en) | 2011-10-24 | 2011-10-24 | Replenishing valve of tile hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284649U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883743A (en) * | 2014-04-01 | 2014-06-25 | 太原重工股份有限公司 | Extrusion machine liquid charging valve and extrusion machine with same |
| CN105065731A (en) * | 2015-07-20 | 2015-11-18 | 中山市文天长液压机械有限公司 | Charging valve |
| CN105937627A (en) * | 2016-06-24 | 2016-09-14 | 海天塑机集团有限公司 | Hydraulic control one-way connector of two-stage squeezing machine |
| CN108533564A (en) * | 2018-06-01 | 2018-09-14 | 福建海源自动化机械股份有限公司 | A kind of master cylinder structure of Novel winding-type hydraulic press |
-
2011
- 2011-10-24 CN CN2011204075935U patent/CN202284649U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883743A (en) * | 2014-04-01 | 2014-06-25 | 太原重工股份有限公司 | Extrusion machine liquid charging valve and extrusion machine with same |
| CN103883743B (en) * | 2014-04-01 | 2016-04-27 | 太原重工股份有限公司 | Extrusion press liquid-filling valve and comprise the extrusion press of this liquid-filling valve |
| CN105065731A (en) * | 2015-07-20 | 2015-11-18 | 中山市文天长液压机械有限公司 | Charging valve |
| CN105065731B (en) * | 2015-07-20 | 2018-05-18 | 中山市文天长液压机械有限公司 | A kind of prefill valve |
| CN105937627A (en) * | 2016-06-24 | 2016-09-14 | 海天塑机集团有限公司 | Hydraulic control one-way connector of two-stage squeezing machine |
| CN108533564A (en) * | 2018-06-01 | 2018-09-14 | 福建海源自动化机械股份有限公司 | A kind of master cylinder structure of Novel winding-type hydraulic press |
| CN108533564B (en) * | 2018-06-01 | 2023-07-25 | 江西海源复合材料科技股份有限公司 | Novel main oil cylinder structure of winding hydraulic machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120627 |
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| CX01 | Expiry of patent term |