CN204572585U - The hydraulic system of multi-position enclosed 4 Press Slider anti-bias loads - Google Patents
The hydraulic system of multi-position enclosed 4 Press Slider anti-bias loads Download PDFInfo
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- CN204572585U CN204572585U CN201520159629.0U CN201520159629U CN204572585U CN 204572585 U CN204572585 U CN 204572585U CN 201520159629 U CN201520159629 U CN 201520159629U CN 204572585 U CN204572585 U CN 204572585U
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Abstract
The utility model relates to the hydraulic system of a kind of multi-position enclosed 4 Press Slider anti-bias loads, gear pump inlet is communicated with the bottom of fuel tank by self-styled oil absorption filter, gear pump outlet is connected with the entrance of bitubular high pressure filter, the outlet of bitubular high pressure filter is connected with one-way valve inlet, one-way valved outlet is connected with the entrance of point oil clot, and each outlet of point oil clot is connected with the filler opening of the 4th unloading valve with the first unloading valve, the second unloading valve, the 3rd unloading valve respectively; First unloading valve, the second unloading valve, the 3rd unloading valve are connected with fuel tank respectively with the drain tap of the 4th unloading valve; The actuator port of the first unloading valve is connected with the cavity of resorption of the first slide block oil cylinder, the actuator port of the second unloading valve is connected with the cavity of resorption of the second slide block oil cylinder, the actuator port of the 3rd unloading valve is connected with the cavity of resorption of the 3rd slide block oil cylinder, and the actuator port of the 4th unloading valve is connected with the cavity of resorption of Four-slider oil cylinder.The overload pressure unloading value that this hydraulic system can realize each point is different.
Description
Technical field
The utility model relates to a kind of enclosed 4 mechanical presss, particularly the hydraulic system of a kind of multi-position enclosed 4 Press Slider anti-bias loads.
Background technique
The hydraulic system of existing multi-position enclosed 4 Press Sliders comprises fuel tank, gear pump, the first slide block oil cylinder, the second slide block oil cylinder, the 3rd slide block oil cylinder and Four-slider oil cylinder, by the cavity of resorption pipeline pump oil of gear pump from the backward each slide block oil cylinder of fuel tank oil suction, each slide block oil cylinder shares a unloading valve.
Along with press machine keeps the large-scale development, the stressed different large-scale multi-position enclosed of multiple operation, multiple spot 4 mechanical presss are more and more applied, require that slide block each point is stressed different, and then need the overload pressure unloading value set by each point also different.In addition, although the hydraulic system of existing multi-position enclosed 4 Press Sliders has Pressure testing, accumulator is not had to cause system pumping plant frequent operation as the supplementary of pressure.
Model utility content
The purpose of this utility model is, overcomes problems of the prior art, provides the hydraulic system of a kind of multi-position enclosed 4 Press Slider anti-bias loads, and the overload pressure unloading value that can realize each point is different.
For solving above technical problem, the hydraulic system of multi-position enclosed of the present utility model 4 Press Slider anti-bias loads, comprise fuel tank T1, gear pump B1, first slide block oil cylinder H1, second slide block oil cylinder H2, 3rd slide block oil cylinder H3 and Four-slider oil cylinder H4, the entrance of gear pump B1 is communicated with the bottom of fuel tank T1 by self-styled oil absorption filter L1, the outlet of gear pump B1 is connected with the entrance of bitubular high pressure filter L2, the outlet of bitubular high pressure filter L2 is connected with the entrance of one-way valve D1, the outlet of one-way valve D1 is connected with the entrance of point oil clot M1, each outlet of point oil clot M1 respectively with the first unloading valve UV1, second unloading valve UV2, 3rd unloading valve UV3 is connected with the filler opening of the 4th unloading valve UV4, first unloading valve UV1, the second unloading valve UV2, the 3rd unloading valve UV3 are connected with fuel tank T1 respectively with the drain tap of the 4th unloading valve UV4, the actuator port of the first unloading valve UV1 is connected with the cavity of resorption of the first slide block oil cylinder H1, the actuator port of the second unloading valve UV2 is connected with the cavity of resorption of the second slide block oil cylinder H2, the actuator port of the 3rd unloading valve UV3 is connected with the cavity of resorption of the 3rd slide block oil cylinder H3, and the actuator port of the 4th unloading valve UV4 is connected with the cavity of resorption of Four-slider oil cylinder H4.
Relative to prior art, the utility model achieves following beneficial effect: lubricant oil enters gear pump B1 through self-styled oil absorption filter L1, pumped by gear pump B1 and enter a point oil clot M1 through bitubular high pressure filter L2, one-way valve D1 successively, a point oil clot M1 is divided into four tunnels respectively to each unloading valve and each slide block oil cylinder fuel feeding.Utilize the precompression of same force value oil first to enter in slide block oil cylinder chamber again by the corresponding unloading valve of each slide block oil cylinder, the unloading valve of selected different proportion relation, just can set out different each point pressure unloading value.As long as after having the slide block cylinder force of a point to reach the off-load of pressure unloading value, the in-oil cylinder pressure oil of slide block of all the other each points also can fall thereupon in off-load, thus achieves the protective action to press machine.Self-styled oil absorption filter L1 can keep the clean of gear pump B1 and lubrication system, extends the working life of gear pump B1 and lubrication system; Can avoid when more renew cartridge, lubricant oil flows out from lubrication system simultaneously.When lubrication system does not work, one-way valve D1 ensures that ducted oil does not flow back in fuel tank T1, shortens the pump oil time to each lubricating component of press machine of gear pump B1 next time.Filter cylinder logical oil when bitubular high pressure filter L2 works, the obstructed oil of another filter cylinder is for subsequent use, more renew cartridge in the non-stop-machine situation of the system that can be implemented in, can effective Control pollution, extension element working life.
As preferred version of the present utility model, the outlet of gear pump B1 is connected with the entrance of board-like throttle valve TV1, and the outlet of board-like throttle valve TV1 is connected with the entrance of described bitubular high pressure filter L2.Board-like throttle valve TV1 can control the rate of discharge of lubricant oil.
As preferred version of the present utility model, the pipeline between the outlet of board-like throttle valve TV1 and the entrance of bitubular high pressure filter L2 is connected with the entrance of relief valve F1, and the outlet of relief valve F1 communicates with fuel tank T1.Relief valve F1 can play a protective role, and when the force value in pipeline exceedes the setting value of relief valve F1, then relief valve F1 opens to fuel tank T1 oil return.
As preferred version of the present utility model, the export pipeline of board-like throttle valve TV1 is connected with the entrance of 2/2-way solenoid directional control valve YV1, the outlet of 2/2-way solenoid directional control valve YV1 is connected with accumulator AC by often opening stop valve V1, and accumulator AC is also connected with fuel tank T1 by normally closed cut-off valve V2.In the course of the work, system gives accumulator AC ftercompction to each slide block oil cylinder simultaneously, and accumulator AC can avoid gear pump B1 frequent starting.After system oil pressure is lower than low-pressure settings, electrical system control 2/2-way solenoid directional control valve YV1 obtains electric commutation to two-way admittance state, and the fluid now in accumulator AC carries out oil-feed ftercompction work to oil feeding system pipeline; After the force value of oil feeding system reaches the input pressure value needed for system, 2/2-way solenoid directional control valve YV1 commutates again, the ftercompction end-of-job in pressurize.After the force value of accumulator AC and system all drops to low-pressure settings, accumulator AC does not have the effect of pressurize, then gear pump B1 opens and buys oil to accumulator AC and precompression system, and when waiting oil pressure value to reach the precompressed force value of the required work of system, gear pump B1 stops work of buying oil.By the time descend in task and occur again above-mentioned situation, then carry out the do action above repetition.
As preferred version of the present utility model, the entrance pipe of 2/2-way solenoid directional control valve YV1 is provided with the first pressure gauge BP1, the export pipeline of bitubular high pressure filter L2 is provided with the second pressure gauge BP2.
As preferred version of the present utility model, the export pipeline of one-way valve D1 is connected with the P mouth of two-bit triplet manually operated valve QV1, and A mouth and the T mouth of two-bit triplet manually operated valve QV1 communicate with fuel tank T1 respectively.Under normal state, P mouth and the A mouth of two-bit triplet manually operated valve QV1 are obstructed, after manually pulling two-bit triplet manually operated valve QV1, and its P mouth and the conducting of A mouth, thus make system unload.
As preferred version of the present utility model, the entrance pipe of point oil clot M1 is provided with pressure relay E1 and the 3rd pressure gauge BP3.Because gear pump B1 must start when press machine is started shooting, belong to long-play, be easy to occur wearing and tearing, pressure relay E1 can detect the outlet pressure of lubricant oil, lubrication system is made to have pumping plant oneself Performance Detection function, if the pressure of lubricant oil is lower than setting value, namely think that gear pump B1 damages, need to change.
Accompanying drawing explanation
Be described in further detail the utility model below in conjunction with the drawings and specific embodiments, accompanying drawing only provides reference and explanation use, is not used to limit the utility model.
Fig. 1 is the schematic diagram of the hydraulic system of the utility model multi-position enclosed 4 Press Slider anti-bias loads.
Fig. 2 is the enlarged view of the first unloading valve UV1.
In figure: AC. accumulator; B1. gear pump; BP1. the first pressure gauge; BP2. the second pressure gauge; BP3. the 3rd pressure gauge; D1. one-way valve; E1. pressure relay; F1. relief valve; H1. the first slide block oil cylinder; H2. the second slide block oil cylinder; H3. the 3rd slide block oil cylinder; H4. Four-slider oil cylinder; L1. self-styled oil absorption filter; L2. bitubular high pressure filter; M1. oil clot is divided; QV1. two-bit triplet manually operated valve; T1. fuel tank; TV1. board-like throttle valve; UV1. the first unloading valve; UV1-1. cartridge valve; UV1-2. two level control valves; UV2. the second unloading valve; UV3. the 3rd unloading valve; UV4. the 4th unloading valve; V1. often stop valve is opened; V2. normally closed cut-off valve; YV1. 2/2-way solenoid directional control valve.
Embodiment
As shown in Figure 1, the hydraulic system of the utility model multi-position enclosed 4 Press Slider anti-bias loads, comprise fuel tank T1, gear pump B1, the first slide block oil cylinder H1, the second slide block oil cylinder H2, the 3rd slide block oil cylinder H3 and Four-slider oil cylinder H4, the entrance of gear pump B1 is communicated with the bottom of fuel tank T1 by self-styled oil absorption filter L1, the outlet of gear pump B1 is connected with the entrance of bitubular high pressure filter L2, the outlet of bitubular high pressure filter L2 is connected with the entrance of one-way valve D1, and the export pipeline of bitubular high pressure filter L2 is provided with the second pressure gauge BP2.The outlet of one-way valve D1 is connected with the entrance of point oil clot M1, and each outlet of point oil clot M1 is connected with the filler opening of the 4th unloading valve UV4 with the first unloading valve UV1, the second unloading valve UV2, the 3rd unloading valve UV3 respectively; First unloading valve UV1, the second unloading valve UV2, the 3rd unloading valve UV3 are connected with fuel tank T1 respectively with the drain tap of the 4th unloading valve UV4; The actuator port of the first unloading valve UV1 is connected with the cavity of resorption of the first slide block oil cylinder H1, the actuator port of the second unloading valve UV2 is connected with the cavity of resorption of the second slide block oil cylinder H2, the actuator port of the 3rd unloading valve UV3 is connected with the cavity of resorption of the 3rd slide block oil cylinder H3, and the actuator port of the 4th unloading valve UV4 is connected with the cavity of resorption of Four-slider oil cylinder H4.
Lubricant oil enters gear pump B1 through self-styled oil absorption filter L1, is pumped enter a point oil clot M1 through bitubular high pressure filter L2, one-way valve D1 successively by gear pump B1, and a point oil clot M1 is divided into four tunnels respectively to each unloading valve and each slide block oil cylinder fuel feeding.Utilize the precompression of same force value oil first to enter in slide block oil cylinder chamber again by the corresponding unloading valve of each slide block oil cylinder, the unloading valve of selected different proportion relation, just can set out different each point pressure unloading value.As long as after having the slide block cylinder force of a point to reach the off-load of pressure unloading value, the in-oil cylinder pressure oil of slide block of all the other each points also can fall thereupon in off-load, thus achieves the protective action to press machine.
The principle of each unloading valve is identical, as shown in Figure 2, for the first unloading valve UV1.All there is an area ratio in the spool at the two of two level control valve UV1-2 in the first unloading valve UV1, area ratio is multiplied by the pressure unloading value that precompressed force value is exactly each point oil cylinder, if area ratio is 1.3, precompression is 16Mpa, then pressure unloading value is 1.3*16=20.8Mpa; The force value promoting two level control valve UV1-2 small end spool action transpositions is exactly pressure unloading value.
When press machine normally works, precompression is a certain force value, two level control valve UV1-2 in first unloading valve UV1 are large end valve element position in bottom, the oil of the precompression in individual one-way valve, pipeline is had not return T mouth to fuel tank herein, and cartridge valve UV1-1 upper end has back pressure to exist, so oil also can not get back to T mouth from A mouth by the mouth of cartridge valve UV1-1 in oil pocket.
When the first slide block oil cylinder H1 transships, the oil pressure value at the working hole A mouth place of the first unloading valve UV1 raises, when reaching the pressure unloading value of setting, just can promote the small end spool of two level control valve UV1-2, now two level control valve UV1-2 replace, precompression oil returns T mouth, and now the back pressure of cartridge valve UV1-1 is not present in, and the oil in that oil cylinder gets back to T mouth again to fuel tank from A mouth through cartridge valve UV1-1; Now the oil of P mouth just gets back to T mouth through two level control valve UV1-2, because now in system, precompression has not reached, the proportionate relationship maintaining balance in all the other each unloading valve blocks just destroys, namely precompression is not had to head on the large end valve core of two level control valves, oil pressure in other slide block cylinder cavity is two level control valve tops after transposition, back pressure on cartridge valve is not present in, and now oil just can get back to T mouth again to fuel tank from A mouth through cartridge valve.Now, the oil of four slide block cylinder cavities all gets back to fuel tank from respective T mouth, and unloading process is so far all complete.
Self-styled oil absorption filter L1 can keep the clean of gear pump B1 and lubrication system, extends the working life of gear pump B1 and lubrication system; Can avoid when more renew cartridge, lubricant oil flows out from lubrication system simultaneously.When lubrication system does not work, one-way valve D1 ensures that ducted oil does not flow back in fuel tank T1, shortens the pump oil time to each lubricating component of press machine of gear pump B1 next time.Filter cylinder logical oil when bitubular high pressure filter L2 works, the obstructed oil of another filter cylinder is for subsequent use, more renew cartridge in the non-stop-machine situation of the system that can be implemented in, can effective Control pollution, extension element working life.
The outlet of gear pump B1 is connected with the entrance of board-like throttle valve TV1, and the outlet of board-like throttle valve TV1 is connected with the entrance of described bitubular high pressure filter L2.Board-like throttle valve TV1 can control the rate of discharge of lubricant oil.
Pipeline between the outlet of board-like throttle valve TV1 and the entrance of bitubular high pressure filter L2 is connected with the entrance of relief valve F1, and the outlet of relief valve F1 communicates with fuel tank T1.Relief valve F1 can play a protective role, and when the force value in pipeline exceedes the setting value of relief valve F1, then relief valve F1 opens to fuel tank T1 oil return.
The export pipeline of board-like throttle valve TV1 is connected with the entrance of 2/2-way solenoid directional control valve YV1, the entrance pipe of 2/2-way solenoid directional control valve YV1 is provided with the first pressure gauge BP1, the outlet of 2/2-way solenoid directional control valve YV1 is connected with accumulator AC by often opening stop valve V1, and accumulator AC is also connected with fuel tank T1 by normally closed cut-off valve V2.In the course of the work, system gives accumulator AC ftercompction to each slide block oil cylinder simultaneously, and accumulator AC can avoid gear pump B1 frequent starting.After system oil pressure is lower than low-pressure settings, electrical system control 2/2-way solenoid directional control valve YV1 obtains electric commutation to two-way admittance state, and the fluid now in accumulator AC carries out oil-feed ftercompction work to oil feeding system pipeline; After the force value of oil feeding system reaches the input pressure value needed for system, 2/2-way solenoid directional control valve YV1 commutates again, the ftercompction end-of-job in pressurize.After the force value of accumulator AC and system all drops to low-pressure settings, accumulator AC does not have the effect of pressurize, then gear pump B1 opens and buys oil to accumulator AC and precompression system, and when waiting oil pressure value to reach the precompressed force value of the required work of system, gear pump B1 stops work of buying oil.By the time descend in task and occur again above-mentioned situation, then carry out the do action above repetition.
The export pipeline of one-way valve D1 is connected with the P mouth of two-bit triplet manually operated valve QV1, and A mouth and the T mouth of two-bit triplet manually operated valve QV1 communicate with fuel tank T1 respectively.Under normal state, P mouth and the A mouth of two-bit triplet manually operated valve QV1 are obstructed, after manually pulling two-bit triplet manually operated valve QV1, and its P mouth and the conducting of A mouth, thus make system unload.
Divide on the entrance pipe of oil clot M1 and pressure relay E1 and the 3rd pressure gauge BP3 is installed.Because gear pump B1 must start when press machine is started shooting, belong to long-play, be easy to occur wearing and tearing, pressure relay E1 can detect the outlet pressure of lubricant oil, lubrication system is made to have pumping plant oneself Performance Detection function, if the pressure of lubricant oil is lower than setting value, namely think that gear pump B1 damages, need to change.
The foregoing is only the better possible embodiments of the utility model, non-ly therefore limit to scope of patent protection of the present utility model.In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.The utility model can pass through without the technical characteristics described or adopt existing techniques in realizing, does not repeat them here.
Claims (7)
1. the hydraulic system of a multi-position enclosed 4 Press Slider anti-bias loads, comprise fuel tank (T1), gear pump (B1), first slide block oil cylinder (H1), second slide block oil cylinder (H2), 3rd slide block oil cylinder (H3) and Four-slider oil cylinder (H4), it is characterized in that: the entrance of gear pump (B1) is communicated by the bottom of self-styled oil absorption filter (L1) with fuel tank (T1), the outlet of gear pump (B1) is connected with the entrance of bitubular high pressure filter (L2), the outlet of bitubular high pressure filter (L2) is connected with the entrance of one-way valve (D1), the outlet of one-way valve (D1) is connected with the entrance of point oil clot (M1), each outlet of point oil clot (M1) respectively with the first unloading valve (UV1), second unloading valve (UV2), 3rd unloading valve (UV3) is connected with the filler opening of the 4th unloading valve (UV4), first unloading valve (UV1), the second unloading valve (UV2), the 3rd unloading valve (UV3) are connected with fuel tank (T1) respectively with the drain tap of the 4th unloading valve (UV4), the actuator port of the first unloading valve (UV1) is connected with the cavity of resorption of the first slide block oil cylinder (H1), the actuator port of the second unloading valve (UV2) is connected with the cavity of resorption of the second slide block oil cylinder (H2), the actuator port of the 3rd unloading valve (UV3) is connected with the cavity of resorption of the 3rd slide block oil cylinder (H3), and the actuator port of the 4th unloading valve (UV4) is connected with the cavity of resorption of Four-slider oil cylinder (H4).
2. the hydraulic system of multi-position enclosed according to claim 14 Press Slider anti-bias loads, it is characterized in that: the outlet of gear pump (B1) is connected with the entrance of board-like throttle valve (TV1), the outlet of board-like throttle valve (TV1) is connected with the entrance of described bitubular high pressure filter (L2).
3. the hydraulic system of multi-position enclosed according to claim 24 Press Slider anti-bias loads, it is characterized in that: the pipeline between the outlet of board-like throttle valve (TV1) and the entrance of bitubular high pressure filter (L2) is connected with the entrance of relief valve (F1), the outlet of relief valve (F1) communicates with fuel tank (T1).
4. the hydraulic system of multi-position enclosed according to claim 24 Press Slider anti-bias loads, it is characterized in that: the export pipeline of board-like throttle valve (TV1) is connected with the entrance of 2/2-way solenoid directional control valve (YV1), the outlet of 2/2-way solenoid directional control valve (YV1) is connected with accumulator (AC) by often opening stop valve (V1), and accumulator (AC) is also connected with fuel tank (T1) by normally closed cut-off valve (V2).
5. the hydraulic system of multi-position enclosed according to claim 44 Press Slider anti-bias loads, it is characterized in that: the entrance pipe of 2/2-way solenoid directional control valve (YV1) is provided with the first pressure gauge (BP1), the export pipeline of bitubular high pressure filter (L2) is provided with the second pressure gauge (BP2).
6. the hydraulic system of multi-position enclosed according to claim 14 Press Slider anti-bias loads, it is characterized in that: the export pipeline of one-way valve (D1) is connected with the P mouth of two-bit triplet manually operated valve (QV1), and the A mouth of two-bit triplet manually operated valve (QV1) and T mouth communicate with fuel tank (T1) respectively.
7. the hydraulic system of multi-position enclosed according to any one of claim 1 to 64 Press Slider anti-bias loads, is characterized in that: the entrance pipe of point oil clot (M1) is provided with pressure relay (E1) and the 3rd pressure gauge (BP3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159629.0U CN204572585U (en) | 2015-03-20 | 2015-03-20 | The hydraulic system of multi-position enclosed 4 Press Slider anti-bias loads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159629.0U CN204572585U (en) | 2015-03-20 | 2015-03-20 | The hydraulic system of multi-position enclosed 4 Press Slider anti-bias loads |
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| CN204572585U true CN204572585U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520159629.0U Active CN204572585U (en) | 2015-03-20 | 2015-03-20 | The hydraulic system of multi-position enclosed 4 Press Slider anti-bias loads |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438596A (en) * | 2016-12-19 | 2017-02-22 | 南通锻压设备股份有限公司 | Active deflection-preventing electro-hydraulic control system for sliding block of rotary forging hydraulic machine |
-
2015
- 2015-03-20 CN CN201520159629.0U patent/CN204572585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438596A (en) * | 2016-12-19 | 2017-02-22 | 南通锻压设备股份有限公司 | Active deflection-preventing electro-hydraulic control system for sliding block of rotary forging hydraulic machine |
| CN106438596B (en) * | 2016-12-19 | 2018-06-29 | 南通锻压设备股份有限公司 | Pendulum rolles over slider of hydraulic press actively anti-deflection electrohydraulic control system |
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Address after: No. 99, Yangli Road, Hanjiang Industrial Park, Hanjiang District, Yangzhou, Jiangsu 225000 Patentee after: YANGLI GROUP Corp.,Ltd. Address before: No. 99, Yangli Road, Hanjiang Industrial Park, Hanjiang District, Yangzhou, Jiangsu 225000 Patentee before: JIANGSU YANGLI GROUP Co.,Ltd. |