CN202317938U - Impact-free hydraulic system for planogrinder workbench - Google Patents
Impact-free hydraulic system for planogrinder workbench Download PDFInfo
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- CN202317938U CN202317938U CN2011203965215U CN201120396521U CN202317938U CN 202317938 U CN202317938 U CN 202317938U CN 2011203965215 U CN2011203965215 U CN 2011203965215U CN 201120396521 U CN201120396521 U CN 201120396521U CN 202317938 U CN202317938 U CN 202317938U
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- valve
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- impact
- vane pump
- housing
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Abstract
The utility model discloses an impact-free hydraulic system for a planogrinder workbench. The impact-free hydraulic system consists of a main system loop and an impact-free reversing loop; the main system loop consists of a vane pump, a proportional flow control valve, an overflow valve, an external control oil controlled valve, small overflow valves, and an oil cylinder 10, wherein the vane pump is connected with the proportional flow control valve; the overflow valve is connected between the proportional flow control valve and the vane pump; the proportional flow control valve is connected with the external control oil controlled valve which is connected with the oil cylinder 10; the small overflow valves are arranged between the external control oil controlled valve and the oil cylinder 10; the impact-free reversing loop comprises a flow unloading buffer valve which is connected with the vane pump and an electromagnetic reversing valve; and an electromagnetic unloading buffer valve is connected with the external control oil controlled valve through a superposed double throttle check valve. The impact-free hydraulic system has a reasonable structure, and excellent work performance; and by the impact-free hydraulic system, the impact-free reversing of the planogrinder workbench can be realized.
Description
Technical field
The utility model relates to a kind of gantry mill workbench does not have the impact hydraulic system.
Background technology
At present, gantry mill workbench hydraulic system exists certain impact in workbench reciprocating reversing process, causes oil cylinder two ends buffering dish reed group to break sometimes.Its hydraulic system is by vane pump, electromagnetic relief valve, check valve, proportional velocity regulating valve, internal control formula hydraulic operated valve, solenoid directional control valve, superposing type Double throttle check valve, little overflow valve, and oil cylinder is formed.Whole system is divided into the main system loop, internal control formula commutation loop.In the hydraulic system commutation process, there is reversing impact to a certain degree in the commutation loop by solenoid directional control valve, superposing type Double throttle check valve, internal control formula hydraulic operated valve constitute when commutating control.Hydraulic system main system loop adopts electromagnetic relief valve 2 to realize unloaded unloading, and unloaded pressure is higher, causes system's temperature rise higher, needs to adopt radiator that fuel tank hydraulic oil is dispelled the heat.
Summary of the invention
It is a kind of rational in infrastructure that the purpose of the utility model is to provide, and can realize that gantry mill workbench does not have gantry mill workbench that impacts switching-over and do not have the impact hydraulic system.
The technical solution of the utility model is:
A kind of gantry mill workbench does not have the impact hydraulic system, it is characterized in that: impact commutation loop by main system loop and nothing and form; Said main system loop comprises vane pump; Vane pump is connected with proportional velocity regulating valve; Be connected to overflow valve between proportional velocity regulating valve and the vane pump, proportional velocity regulating valve is connected with the external control type hydraulic operated valve, and the external control type hydraulic operated valve is connected with oil cylinder; Between external control type hydraulic operated valve and oil cylinder, be provided with little overflow valve, the main system loop that oil cylinder 10 is formed; Said nothing is impacted commutation loop and is comprised the flow off-load trimmer valve that is connected with vane pump, and flow off-load trimmer valve changes from valve with electromagnetism and is connected, and electromagnetism off-load trimmer valve is connected with the external control type hydraulic operated valve through the superposing type Double throttle check valve.
Said flow off-load trimmer valve comprises housing, and slide valve buckle is housed in housing, is provided with guiding valve in the slide valve buckle, is provided with in the guiding valve and decides throttle orifice, spring; End cap is equipped with in the housing termination, and one of housing has fuel feed hole, and spill port is arranged in the middle of the housing; There is oil outlet the housing other end, and an annular oil-feed tank that communicates with fuel feed hole is arranged on the slide valve buckle, and other has an annular oil-recovery tank to communicate with spill port; One of end cap has annular to go out oil groove, and end cap has matrix chamber, end, and an end of guiding valve has the bottom of matrix chamber wall and housing to constitute pressure chamber; Guiding valve has cannelure 48 to communicate with interior oilhole, and the other end of guiding valve has the matrix chamber, and a screw hole is arranged in the matrix chamber; Fuel feed hole, annular oil-feed tank, fuel feed hole, cannelure, interior oilhole constitute supports oil pocket, and communicates with pressure chamber, and oil outlet, annular go out oil groove, matrix chamber, matrix chamber, end and constitute and oil pocket; Spring is housed in going out oil pocket, and spill port, annular oil-recovery tank, spill port constitute oil back chamber, pressure chamber through oil suction chamber, decide throttle orifice and go out oil pocket and communicate.
The utility model is rational in infrastructure, can realize that gantry mill workbench does not have the switching-over of impact, and service behaviour is excellent.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is a flow off-load trimmer valve structural representation.
The specific embodiment
A kind of gantry mill workbench does not have the impact hydraulic system, by vane pump 1, and overflow valve 11, proportional velocity regulating valve 4, external control type hydraulic operated valve 13, little overflow valve 8 and 9, the main system loop that oil cylinder 10 is formed.By flow off-load trimmer valve 12, solenoid directional control valve 14, the nothing that superposing type Double throttle check valve 7 and external control type hydraulic operated valve 13 are formed is impacted commutation loop.
Said main system loop comprises vane pump; Vane pump is connected with proportional velocity regulating valve; Be connected to overflow valve between proportional velocity regulating valve and the vane pump, proportional velocity regulating valve is connected with the external control type hydraulic operated valve, and the external control type hydraulic operated valve is connected with oil cylinder; Between external control type hydraulic operated valve and oil cylinder, be provided with little overflow valve, the main system loop that oil cylinder 10 is formed; Said nothing is impacted commutation loop and is comprised the flow off-load trimmer valve that is connected with vane pump, and flow off-load trimmer valve changes from valve with electromagnetism and is connected, and electromagnetism off-load trimmer valve is connected with the external control type hydraulic operated valve through the superposing type Double throttle check valve.
When vane pump 1 to main system loop fuel feeding elbow because external control type hydraulic operated valve 13 mediates, oil circuit is dissengaged positions, oil cylinder 10 attonitys, this moment, vane pump l was simultaneously to there not being the commutation loop of impact fuel feeding.Arrive solenoid directional control valve 14 through flow off-load trimmer valve 12; Because solenoid directional control valve 14 mediates; This part comes oil through solenoid directional control valve 14 oil sump tanks by flow off-load trimmer valve 12; Flow off-load trimmer valve 12 is opened the oil sump tank opening simultaneously, and all the other most of next oil that make vane pump 1 are through this direct oil sump tank, and whole system is in unloading condition.
When solenoid directional control valve 14 was in the switching-over operating position, vane pump 1 was not to there being the commutation loop of impact fuel feeding, and to solenoid directional control valve 14, superposing type Double throttle check valve 7 is controlled 13 switching-overs of external control type hydraulic operated valves through flow off-load trimmer valve 12.In case switching-over finishes, flow off-load trimmer valve 12 just cuts out the opening of fuel tank.All flows of main system vane pump 1 are through external control type hydraulic operated valve 13 at this moment, and little overflow valve 8 and 9 to oil cylinder 10 fuel feeding, makes system be in the working in reciprocating mode state.
Be to realize native system, the utility model is special flow off-load trimmer valve.
Flow off-load trimmer valve is equipped with slide valve buckle 16, guiding valve 17 in housing 15, guiding valve 17 contains decides throttle orifice 18, spring 19, and end cap 20 is equipped with in housing 15 terminations, and through bolt 21, packing ring 22 connects locking.15 1 of housings have fuel feed hole 23, and the matrix shoulder 25 of " O " shape sealing ring 24 is housed.In the middle of the housing 15 spill port 26 is arranged, and the matrix shoulder 28 of " O " shape sealing ring 27 is housed.There is oil outlet 29 housing 15 other ends, and the matrix shoulder 31 of " O " shape sealing ring 30 is housed.An annular oil-feed tank 32 is arranged on the slide valve buckle 16, and have fuel feed hole 33 to communicate with it.Other has an annular oil-recovery tank 34, and has spill port 35 to communicate with it.Between annular oil-feed tank 32 and annular oil-recovery tank 34, the cannelure 37 that " O " shape sealing ring 36 is housed is arranged, the cannelure 39 that " O " shape sealing ring 38 is housed is arranged at slide valve buckle 16 other ends.20 1 of end caps have annular to go out oil groove 40, and have oilhole 41 to communicate with it, and other is equipped with the cannelure 43 of " O " shape sealing ring 42.End cap 20 has matrix chamber, end 44.One end of guiding valve 17 has the matrix chamber wall 45 and the bottom 46 of housing 15 to constitute pressure chamber 47.Guiding valve 17 has cannelure 48, communicates with interior oilhole 50 through oilhole 49.The other end of guiding valve 17 has a screw hole 52 is arranged in the matrix chamber 51.Fuel feed hole 23, annular oil-feed tank 32, fuel feed hole 33, cannelure 48, oilhole 49, interior oilhole 50 constitute supports oil pocket 53, and communicates with pressure chamber 47.Oil outlet 29, annular go out oil groove 40, oilhole 41, matrix chamber 51, matrix chamber, end 44 and constitute and oil pocket 54, and spring 19 is housed in going out oil pocket 54.Spill port 26, annular oil-recovery tank 34, spill port 35 constitute oil back chamber 55.Pressure chamber 47 through oil suction chamber 53, decide throttle orifice 18 and go out oil pocket 54 and communicate.
Not having the switching-over of impact so the utility model can be realized gantry mill workbench, is to impact commutation function because flow off-load trimmer valve has tangible nothing in the mill workbench commutation process of gantry.Flow off-load trimmer valve has unloading function when workbench is unloaded simultaneously.
1, sketches the unloaded unloading function of flow off-load trimmer valve at present
When main system is come oily Q
0, get into oil suction chamber 53 and arrive pressure chamber 47, through deciding throttle orifice 18 to going out oil pocket 54, this flow is Q on the other hand
l, to solenoid directional control valve 14 fuel feeding, when system was unloaded, solenoid directional control valve 14 mediated, and flow is Q
lThrough this oil sump tank.Flow is arranged is Q through deciding throttle orifice 18
lThereby, the pressure P in build-up of pressure chamber 47
1With the pressure P that goes out oil pocket 54
2Between form pressure differential P
l-P
2Under this action of pressure, guiding valve 17 overcomes the spring force of spring 19 and moves.The space of pressure chamber 47 increases gradually, forms opening between four oilholes 35 on the cannelure 48 of guiding valve 17 and the slide valve buckle 16, most of flow Q of oil suction chamber 53
2=Q
0-Q
lThrough oil back chamber 55 oil sump tanks, make main system present unloaded unloading condition through this opening.
2, there is not the commutation function of impact in the summary flow off-load trimmer valve commutation process
When solenoid directional control valve 14 commutates work, Q
lFlow commutate to external control type hydraulic operated valve 13 through superposing type Double throttle check valve 7.So control flow Q
lSize and the throttling size of regulating superposing type Double throttle check valve 7, can control the speed of commutating period.In case switching-over finishes, external control type hydraulic operated valve 13 reversing slide valves only need pressure, and do not need flow.This moment flow Q
lBe approximately zero.Thereby pressure chamber 47 and go out pressure differential P between the oil pocket 54
l-P
2Also level off to zero, guiding valve 17 under the spring force effect of spring 19, on the cannelure 48 that makes guiding valve 17 and the slide valve buckle 16 between four oilholes 35 opening of formation close gradually, make Q
2=0, this moment, pressure chamber 47 spaces dwindled gradually, and the fluid in it is got back to out oil pocket 54 through deciding throttle orifice 18, and this moment, main system increased to full flow gradually through the flow of external control type hydraulic operated valve 13.This shows the size of the spring force of control spring 19, and decide the size in throttle orifice 18 apertures, can change the time of closing closed procedure, also promptly change the main system flow and appreciate to the process time of full flow from zero.
Because flow off-load trimmer valve has been controlled the commutation process time of external control type hydraulic operated valve 13 in workbench reciprocating reversing process, controlled the birth process time of main system flow again simultaneously, thereby realized that the workbench commutation process does not have impact.
Gantry mill workbench of processing according to the utility model does not have the impact hydraulic system, and most of Hydraulic Elements adopt standardization, only needs special plate type flow rate off-load buffering to cut off from.Said elements all adopts the superposing type form to be connected on the combination valve block.Pipeline is simple, connection and reasonable arrangement, and convenient for maintaining, reliability is high.The unloaded pressure of system is low, when flow Q=94 liter/minute, pressure is no more than 0.6Mpa.Belong to energy-saving system.Most importantly solve gantry mill workbench switching-over and do not had this technical barrier of impact.This technology also is applicable to the changement and the device of other large-scale operating cylinder working in reciprocating mode.
Claims (2)
1. gantry mill workbench does not have the impact hydraulic system, it is characterized in that: impact commutation loop by main system loop and nothing and form; Said main system loop comprises vane pump; Vane pump is connected with proportional velocity regulating valve; Be connected to overflow valve between proportional velocity regulating valve and the vane pump, proportional velocity regulating valve is connected with the external control type hydraulic operated valve, and the external control type hydraulic operated valve is connected with oil cylinder; Between external control type hydraulic operated valve and oil cylinder, be provided with little overflow valve, the main system loop that oil cylinder (10) is formed; Said nothing is impacted commutation loop and is comprised the flow off-load trimmer valve that is connected with vane pump, and flow off-load trimmer valve changes from valve with electromagnetism and is connected, and electromagnetism off-load trimmer valve is connected with the external control type hydraulic operated valve through the superposing type Double throttle check valve.
2. gantry according to claim 1 mill workbench does not have the impact hydraulic system, and it is characterized in that: said flow off-load trimmer valve comprises housing, and slide valve buckle is housed in housing; Be provided with guiding valve in the slide valve buckle, be provided with in the guiding valve and decide throttle orifice, spring, end cap is equipped with in the housing termination; One of housing has fuel feed hole, in the middle of the housing spill port is arranged, and there is oil outlet the housing other end; An annular oil-feed tank that communicates with fuel feed hole is arranged on the slide valve buckle, and other has an annular oil-recovery tank to communicate with spill port, and one of end cap has annular to go out oil groove; End cap has matrix chamber, end, and an end of guiding valve has the bottom of matrix chamber wall and housing to constitute pressure chamber, and guiding valve has cannelure (48) to communicate with interior oilhole; The other end of guiding valve has the matrix chamber, and a screw hole is arranged in the matrix chamber, and fuel feed hole, annular oil-feed tank, fuel feed hole, cannelure, interior oilhole constitute supports oil pocket; And communicate with pressure chamber, oil outlet, annular go out oil groove, matrix chamber, matrix chamber, end and constitute and oil pocket, and spring is housed in going out oil pocket; Spill port, annular oil-recovery tank, spill port constitute oil back chamber, pressure chamber through oil suction chamber, decide throttle orifice and go out oil pocket and communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203965215U CN202317938U (en) | 2011-10-18 | 2011-10-18 | Impact-free hydraulic system for planogrinder workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203965215U CN202317938U (en) | 2011-10-18 | 2011-10-18 | Impact-free hydraulic system for planogrinder workbench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202317938U true CN202317938U (en) | 2012-07-11 |
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ID=46429935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203965215U Expired - Fee Related CN202317938U (en) | 2011-10-18 | 2011-10-18 | Impact-free hydraulic system for planogrinder workbench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202317938U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675781A (en) * | 2013-11-30 | 2015-06-03 | 中国科学院沈阳自动化研究所 | Compact type external controlled direct relief valve |
| CN110405561A (en) * | 2019-08-29 | 2019-11-05 | 四川省川磨岷机联合数控机器股份有限公司 | A kind of hydraulic feed formula horizontal axis is away from platform surface grinding machine |
-
2011
- 2011-10-18 CN CN2011203965215U patent/CN202317938U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675781A (en) * | 2013-11-30 | 2015-06-03 | 中国科学院沈阳自动化研究所 | Compact type external controlled direct relief valve |
| CN110405561A (en) * | 2019-08-29 | 2019-11-05 | 四川省川磨岷机联合数控机器股份有限公司 | A kind of hydraulic feed formula horizontal axis is away from platform surface grinding machine |
| CN110405561B (en) * | 2019-08-29 | 2024-04-26 | 四川省川磨岷机联合数控机器股份有限公司 | Hydraulic feeding type horizontal axis rectangular table surface grinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGCHUAN MACHINERY MFG. PLANT, NANTONG CITY Free format text: FORMER OWNER: NANTONG JIANYU PRECISION MACHINERY MANUFACTURING CO., LTD. Effective date: 20140829 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140829 Address after: 226000 No. 69, purple Road, Nantong, Jiangsu Patentee after: Chongchuan Machinery Mfg. Plant, Nantong City Address before: 226000 No. 69, purple Road, Nantong, Jiangsu Patentee before: Nantong Jianyu Precision Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151018 |
|
| EXPY | Termination of patent right or utility model |