CN210715334U - Hydraulic system output device and garbage compressor hydraulic system adopting same - Google Patents
Hydraulic system output device and garbage compressor hydraulic system adopting same Download PDFInfo
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- CN210715334U CN210715334U CN201921159682.5U CN201921159682U CN210715334U CN 210715334 U CN210715334 U CN 210715334U CN 201921159682 U CN201921159682 U CN 201921159682U CN 210715334 U CN210715334 U CN 210715334U
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Abstract
The utility model discloses a hydraulic system output device, include: the hydraulic control system comprises an oil tank, a hydraulic pump A connected with the oil tank, a hydraulic pump B connected with the oil tank, a main oil inlet path, a main oil return path connected with the oil tank and a PLC (programmable logic controller) electric control unit, wherein the output end of the hydraulic pump A is connected with a check valve A and then is connected with the main oil inlet path, the output end of the hydraulic pump B is connected with a check valve B and then is connected with the main oil inlet path, a pilot type electromagnetic overflow valve is arranged between the output end of the hydraulic pump A and the oil tank, the output end of the hydraulic pump B is connected with an H-shaped three-position four-way electromagnetic reversing valve, an overflow valve A is connected between an oil port A of the H-shaped three-; three pressures with different sizes can be output, and the requirements of different working conditions of a hydraulic system can be met; the utility model also discloses an adopt hydraulic system output device's rubbish compressor hydraulic system has the advantage that energy-conserving effect is showing.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a hydraulic system output device, the utility model discloses still relate to the rubbish compressor hydraulic system who adopts this hydraulic system output device.
[ background of the invention ]
Along with the development of a hydraulic system, more and more devices are driven by hydraulic pressure, for example, a garbage compressor comprises a push shovel, a box holding mechanism, a box pushing and pulling mechanism and a door lifting mechanism, wherein the push shovel, the box holding mechanism, the box pushing and pulling mechanism and the door lifting mechanism respectively drive hydraulic cylinders of the mechanisms to move correspondingly, the working conditions of the mechanisms are different, and the conventional hydraulic system output device is difficult to output pressure with different sizes according to actual requirements.
The utility model discloses it is not enough to solve prior art and research and propose promptly.
[ Utility model ] content
In order to solve the technical problem, the utility model discloses a hydraulic system output device, include: the hydraulic control system comprises an oil tank, a hydraulic pump A connected with the oil tank, a hydraulic pump B connected with the oil tank, a main oil inlet path, a main oil return path connected with the oil tank and a PLC (programmable logic controller) electric control unit, wherein the output end of the hydraulic pump A is connected with a check valve A and then is connected with the main oil inlet path, the output end of the hydraulic pump B is connected with a check valve B and then is connected with the main oil inlet path, a pilot-operated electromagnetic overflow valve is arranged between the output end of the hydraulic pump A and the oil tank and is provided with an electromagnet DT1 connected with the PLC electric control unit, the output end of the hydraulic pump B is connected with an H-shaped three-position four-way electromagnetic directional valve, the output end of the hydraulic pump B is connected with a P oil port of the H-shaped three-position four-way electromagnetic directional valve, a T oil port of the H-shaped three-, an overflow valve B is connected between an oil port B of the H-shaped three-position four-way electromagnetic directional valve and an oil tank, and the H-shaped three-position four-way electromagnetic directional valve is provided with an electromagnet DT2 and an electromagnet DT3 which are connected with a PLC electric control unit.
In the hydraulic system output device, a filter with a bypass valve is connected in series between the main oil return path and the oil tank.
Based on above-mentioned hydraulic system output device's basis, the utility model discloses an adopt hydraulic system output device's rubbish compressor hydraulic system, hydraulic system include: the hydraulic control system comprises an oil tank, a hydraulic pump A connected with the oil tank, a hydraulic pump B connected with the oil tank, a main oil inlet path, a main oil return path connected with the oil tank and a PLC (programmable logic controller) electric control unit, wherein the output end of the hydraulic pump A is connected with a check valve A and then is connected with the main oil inlet path, the output end of the hydraulic pump B is connected with a check valve B and then is connected with the main oil inlet path, a pilot-operated electromagnetic overflow valve is arranged between the output end of the hydraulic pump A and the oil tank and is provided with an electromagnet DT1 connected with the PLC electric control unit, the output end of the hydraulic pump B is connected with an H-shaped three-position four-way electromagnetic directional valve, the output end of the hydraulic pump B is connected with a P oil port of the H-shaped three-position four-way electromagnetic directional valve, a T oil port of the H-shaped three-, an overflow valve B is connected between an oil port B of the H-shaped three-position four-way electromagnetic directional valve and an oil tank, and the H-shaped three-position four-way electromagnetic directional valve is provided with an electromagnet DT2 and an electromagnet DT3 which are connected with a PLC (programmable logic controller) electronic control unit; the hydraulic system also comprises a push shovel oil cylinder for driving the push shovel to act, a door lifting oil cylinder for driving the door lifting mechanism to act, a push and pull box oil cylinder for driving the push and pull box to act, and a box holding oil cylinder for driving the box holding mechanism to act, the push shovel oil cylinder is connected between the main oil inlet path and the main oil return path through a three-position four-way electromagnetic directional valve A, the door lifting oil cylinder is connected between the main oil inlet path and the main oil return path through a three-position four-way electromagnetic reversing valve B, the push-pull box oil cylinder is connected between the main oil inlet path and the main oil return path through a three-position four-way electromagnetic reversing valve C, the box holding oil cylinder is connected between the main oil inlet path and the main oil return path through a three-position four-way electromagnetic reversing valve D, the three-position four-way electromagnetic directional valve A, the three-position four-way electromagnetic directional valve B, the three-position four-way electromagnetic directional valve C and the three-position four-way electromagnetic directional valve D are respectively and electrically connected with the PLC electric control unit.
In the above garbage compressor hydraulic system adopting the hydraulic system output device, the three-position four-way electromagnetic directional valve a, the three-position four-way electromagnetic directional valve B, the three-position four-way electromagnetic directional valve C and the three-position four-way electromagnetic directional valve D are all three-position four-way directional valves with y-shaped median functions.
In the above hydraulic system of the garbage compressor adopting the hydraulic system output device, a filter with a bypass valve is connected in series between the main oil return path and the oil tank.
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model discloses a hydraulic system output device uses through the cooperation of guide's formula electromagnetic overflow valve and H type tribit four-way solenoid directional valve, can export the pressure of three kinds of variation in size, can satisfy the requirement of the different operating modes of hydraulic system.
2. The utility model discloses a rubbish compressor hydraulic system makes the performance of rubbish compressor reach very big promotion through the accurate control of each action: a) the push shovel is in a no-load or light-load state and is in a fast-forward low-voltage working condition; heavy load or need the high pressure state, advance high pressure compression operation slowly, adopt such accurate control, advance the low pressure operating mode soon and make compressor compression rubbish efficiency obtain very big promotion, advance high pressure compression operation slowly and use the effect of compression operation best, the compactness height. b) And each action (including pushing shovel, holding box, pushing and pulling box and lifting door) acts at the most proper speed and pressure according to the action working condition, so that high-pressure overflow and waste power loss are not generated as much as possible, and the energy-saving effect is obvious.
[ description of the drawings ]
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a hydraulic schematic diagram of embodiment 1 of the present invention;
fig. 2 is a table showing the correspondence between the energization of the electromagnet and the pressure of the output hydraulic oil in embodiment 1 of the present invention;
fig. 3 is a hydraulic schematic diagram of embodiment 2 of the present invention;
fig. 4 is a table showing correspondence between the oil cylinder operation and the electromagnet energization in embodiment 2 of the present invention;
fig. 5 is a schematic structural view of a garbage compressor in embodiment 2 of the present invention.
[ detailed description ] embodiments
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 and 2, the hydraulic system output device of the present embodiment includes: the hydraulic control system comprises an oil tank 1, a hydraulic pump A2 connected with the oil tank 1, a hydraulic pump B3 connected with the oil tank 1, a main oil inlet channel 101, a main oil return channel 102 connected with the oil tank 1 and a PLC (programmable logic controller) electronic control unit, wherein the output end of the hydraulic pump A2 is connected with a check valve A4 and then connected with the main oil inlet channel 101, the output end of the hydraulic pump B3 is connected with a check valve B5 and then connected with the main oil inlet channel 101, a pilot-operated electromagnetic overflow valve 6 is arranged between the output end of the hydraulic pump A2 and the oil tank 1, the pilot-operated electromagnetic overflow valve 6 is assumed to have the overflow pressure of P1, the pilot-operated electromagnetic overflow valve 6 is provided with an electromagnet DT1 connected with the PLC electronic control unit, the output end of the hydraulic pump B3 is connected with an H-type three-position four-way electromagnetic directional control valve 7, the output end of the hydraulic pump B3 is connected with the P1, an overflow valve A8 is connected between an oil port A of the H-shaped three-position four-way electromagnetic directional valve 7 and the oil tank 1, an overflow valve B9 is connected between an oil port B of the H-shaped three-position four-way electromagnetic directional valve 7 and the oil tank 1, the overflow pressure of the overflow valve A is assumed to be P3, the overflow pressure of the overflow valve B is assumed to be P2, P2 is unequal to P3, and the H-shaped three-position four-way electromagnetic directional valve 7 is provided with an electromagnet DT2 and an electromagnet DT3 which are connected with a PLC electronic control unit.
Fig. 2 is a table showing the relationship between the energization of the electromagnet and the pressure of the output hydraulic oil.
The method can be realized by an electromagnet DT1, an electromagnet DT2 and an electromagnet DT 3:
single pump oil supply-slow (DT1 or DT2 or DT3 are energized alone, only one is energized);
double-pump oil supply-quick (DT1+ DT2 or DT1+ DT3 are electrified, two are electrified simultaneously, when two electromagnets are electrified simultaneously, the hydraulic characteristic determines that the working pressure is a low value);
low-pressure operation, namely DT1 electrified operation pressure is P1;
medium pressure operation- -DT2 electrified operating pressure is P2;
high pressure operation- -DT3 energized operating pressure is P3.
The utility model discloses a cooperation of guide's formula electromagnetic relief valve and H type tribit four-way electromagnetic directional valve is used, can export the pressure of three kinds of variation in size, can satisfy the requirement of the different operating modes of hydraulic system.
In order to filter the hydraulic oil returned to the tank from the main return line well, a filter 10 with a bypass valve is connected in series between the main return line 102 and the tank 1.
Example 2:
as shown in fig. 3 to 5, the hydraulic system of the garbage compressor adopting the output device of the hydraulic system of the present embodiment includes: the hydraulic system comprises an oil tank 1, a hydraulic pump A2 connected with the oil tank 1, a hydraulic pump B3 connected with the oil tank 1, a main oil inlet channel 101, a main oil return channel 102 connected with the oil tank 1 and a PLC (programmable logic controller) electronic control unit, wherein the output end of the hydraulic pump A2 is connected with a check valve A4 and then connected with the main oil inlet channel 101, the output end of the hydraulic pump B3 is connected with a check valve B5 and then connected with the main oil inlet channel 101, a pilot-operated electromagnetic overflow valve 6 is arranged between the output end of the hydraulic pump A2 and the oil tank 1, the pilot-operated electromagnetic overflow valve 6 is provided with an electromagnet DT1 connected with the PLC electronic control unit, the output end of the hydraulic pump B3 is connected with an H-type three-position four-way electromagnetic directional valve 7, the output end of the hydraulic pump B23 is connected with P of the H-type three-position four-way electromagnetic directional valve 7, a T oil port of the H-type three-position four-way electromagnetic directional, an overflow valve B9 is connected between an oil port B of the H-shaped three-position four-way electromagnetic directional valve 7 and the oil tank 1, and the H-shaped three-position four-way electromagnetic directional valve 7 is provided with an electromagnet DT2 and an electromagnet DT3 which are connected with a PLC (programmable logic controller) electric control unit; the hydraulic system further comprises a push shovel oil cylinder 11 used for driving a push shovel to act, a door lifting oil cylinder 12 used for driving a door lifting mechanism to act, a push-pull box oil cylinder 13 used for driving a push-pull box to act, and a box embracing oil cylinder 14 used for driving a box embracing mechanism to act, wherein the push shovel oil cylinder 11 is connected between the main oil inlet path 101 and the main oil return path 102 through a three-position four-way electromagnetic reversing valve A15, the door lifting oil cylinder 12 is connected between the main oil inlet path 101 and the main oil return path 102 through a three-position four-way electromagnetic reversing valve B16, the push-pull box oil cylinder 13 is connected between the main oil inlet path 101 and the main oil return path 102 through a three-position four-way electromagnetic reversing valve C17, the box embracing oil cylinder 14 is connected between the main oil inlet path 101 and the main oil return path 102 through a three-position four-way electromagnetic reversing valve D18, the three-position four-way electromagnetic reversing valve A15, the, The three-position four-way electromagnetic directional valve D18 is respectively electrically connected with the PLC electronic control unit.
FIG. 3 is a table showing the correspondence between the cylinder operation and the electromagnet energization,
the method can be realized by an electromagnet DT1, an electromagnet DT2 and an electromagnet DT 3:
single pump oil supply-slow (DT1 or DT2 or DT3 are energized alone, only one is energized);
double-pump oil supply-quick (DT1+ DT2 or DT1+ DT3 are electrified, two are electrified simultaneously, when two electromagnets are electrified simultaneously, the hydraulic characteristic determines that the working pressure is a low value);
low-pressure operation, namely DT1 electrified operation pressure is P1;
medium pressure operation- -DT2 electrified operating pressure is P2;
high pressure operation- -DT3 energized operating pressure is P3.
The three-position four-way electromagnetic directional valve A15, the three-position four-way electromagnetic directional valve B16, the three-position four-way electromagnetic directional valve C17 and the three-position four-way electromagnetic directional valve D18 are all three-position four-way directional valves with y-shaped median functions.
A filter 10 with a bypass valve is connected in series between the main oil return path 102 and the oil tank 1.
This hydraulic system can realize carrying out the tertiary pressure control of double pump to rubbish compressor hydraulic system:
1. providing single or dual pump oil supply: when the single pump supplies oil, the flow is small and the speed is slow; when the double pumps are combined for oil supply, the flow is large and the speed is high.
2. Three pressures are provided: low pressure (primary pressure), medium pressure (secondary pressure), high pressure (tertiary pressure), and can be switched and precisely controlled.
3. The working conditions of each function (push shovel, holding box, push-pull box and lifting door) of the garbage compressor are different, and the speed and the pressure can be accurately controlled, so that the operating working condition requirements of each action speed and each action force are fully met.
4. Through the accurate control of each action, make the performance of rubbish compressor obtain very big promotion:
a) the push shovel is in a no-load or light-load state and is in a fast-forward low-voltage working condition; heavy load or need the high pressure state, advance high pressure compression operation slowly, adopt such accurate control, advance the low pressure operating mode soon and make compressor compression rubbish efficiency obtain very big promotion, advance high pressure compression operation slowly and use the effect of compression operation best, the compactness height.
b) All actions (including pushing shovel, holding box, pushing and pulling box and lifting door) are carried out at the most appropriate speed and pressure according to the action working condition, so that the loss of high-pressure overflow and useless power is reduced, and the energy-saving effect is obvious.
Claims (5)
1. Hydraulic system output device, its characterized in that includes: the hydraulic control system comprises an oil tank (1), a hydraulic pump A (2) connected with the oil tank (1), a hydraulic pump B (3) connected with the oil tank (1), a main oil inlet path (101), a main oil return path (102) connected with the oil tank (1) and a PLC (programmable logic controller) electronic control unit, wherein the output end of the hydraulic pump A (2) is connected with a one-way valve A (4) and then is connected with the main oil inlet path (101), the output end of the hydraulic pump B (3) is connected with a one-way valve B (5) and then is connected with the main oil inlet path (101), a pilot electromagnetic overflow valve (6) is arranged between the output end of the hydraulic pump A (2) and the oil tank (1), the pilot electromagnetic overflow valve (6) is provided with an electromagnet DT1 connected with the PLC electronic control unit, the output end of the hydraulic pump B (3) is connected with an H-shaped three-position four-way electromagnetic directional valve (7), the output end of the hydraulic, the hydraulic control system is characterized in that a T oil port of the H-shaped three-position four-way electromagnetic directional valve (7) is connected with an oil tank (1) through a pipeline, an overflow valve A (8) is connected between an oil port A of the H-shaped three-position four-way electromagnetic directional valve (7) and the oil tank (1), an overflow valve B (9) is connected between an oil port B of the H-shaped three-position four-way electromagnetic directional valve (7) and the oil tank (1), and the H-shaped three-position four-way electromagnetic directional valve (7) is provided with an electromagnet DT2 and an electromagnet DT3 which are connected with a PLC.
2. The hydraulic system output device according to claim 1, characterized in that a filter (10) with a bypass valve is connected in series between the main return (102) and the oil tank (1).
3. Adopt hydraulic system output device's rubbish compressor hydraulic system, its characterized in that hydraulic system include: the hydraulic control system comprises an oil tank (1), a hydraulic pump A (2) connected with the oil tank (1), a hydraulic pump B (3) connected with the oil tank (1), a main oil inlet path (101), a main oil return path (102) connected with the oil tank (1) and a PLC (programmable logic controller) electronic control unit, wherein the output end of the hydraulic pump A (2) is connected with a one-way valve A (4) and then is connected with the main oil inlet path (101), the output end of the hydraulic pump B (3) is connected with a one-way valve B (5) and then is connected with the main oil inlet path (101), a pilot electromagnetic overflow valve (6) is arranged between the output end of the hydraulic pump A (2) and the oil tank (1), the pilot electromagnetic overflow valve (6) is provided with an electromagnet DT1 connected with the PLC electronic control unit, the output end of the hydraulic pump B (3) is connected with an H-shaped three-position four-way electromagnetic directional valve (7), the output end of the hydraulic, the oil port T of the H-shaped three-position four-way electromagnetic directional valve (7) is connected with the oil tank (1) through a pipeline, an overflow valve A (8) is connected between the oil port A of the H-shaped three-position four-way electromagnetic directional valve (7) and the oil tank (1), an overflow valve B (9) is connected between the oil port B of the H-shaped three-position four-way electromagnetic directional valve (7) and the oil tank (1), and the H-shaped three-position four-way electromagnetic directional valve (7) is provided with an electromagnet DT2 and an electromagnet DT3 which are connected with a PLC (programmable logic controller) unit; the hydraulic system further comprises a push shovel oil cylinder (11) used for driving a push shovel to act, a door lifting oil cylinder (12) used for driving a door lifting mechanism to act, a push-pull box oil cylinder (13) used for driving a push-pull box to act, and a box embracing oil cylinder (14) used for driving a box embracing mechanism to act, wherein the push shovel oil cylinder (11) is connected between the main oil inlet path (101) and the main oil return path (102) through a three-position four-way electromagnetic directional valve A (15), the door lifting oil cylinder (12) is connected between the main oil inlet path (101) and the main oil return path (102) through a three-position four-way electromagnetic directional valve B (16), the push-pull box oil cylinder (13) is connected between the main oil inlet path (101) and the main oil return path (102) through a three-position four-way electromagnetic directional valve C (17), the box embracing oil cylinder (14) is connected between the main oil inlet path (101) and the main oil return path (102) through, the three-position four-way electromagnetic directional valve A (15), the three-position four-way electromagnetic directional valve B (16), the three-position four-way electromagnetic directional valve C (17) and the three-position four-way electromagnetic directional valve D (18) are respectively and electrically connected with the PLC electric control unit.
4. The hydraulic system of a garbage compressor adopting the hydraulic system output device according to claim 3, wherein the three-position four-way electromagnetic directional valve A (15), the three-position four-way electromagnetic directional valve B (16), the three-position four-way electromagnetic directional valve C (17) and the three-position four-way electromagnetic directional valve D (18) are all three-position four-way directional valves with y-shaped median function.
5. The hydraulic system of a refuse compressor with a hydraulic system output device according to claim 3, characterized in that a filter (10) with a bypass valve is connected in series between the main oil return (102) and the oil tank (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921159682.5U CN210715334U (en) | 2019-07-22 | 2019-07-22 | Hydraulic system output device and garbage compressor hydraulic system adopting same |
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| CN201921159682.5U CN210715334U (en) | 2019-07-22 | 2019-07-22 | Hydraulic system output device and garbage compressor hydraulic system adopting same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111844861A (en) * | 2020-07-06 | 2020-10-30 | 徐州徐工环境技术有限公司 | System and method for controlling mobile station operation based on sensing garbage stock |
| CN111846715A (en) * | 2020-07-29 | 2020-10-30 | 深圳东风汽车有限公司 | Flow self-adaptive control method for hydraulic system of rear-mounted compression type garbage truck |
| CN111846716A (en) * | 2020-07-29 | 2020-10-30 | 深圳东风汽车有限公司 | Control method of push shovel of kitchen garbage truck during garbage compression |
| CN112943732A (en) * | 2021-03-24 | 2021-06-11 | 北京航空航天大学 | Overflow valve with different opening and closing pressures |
-
2019
- 2019-07-22 CN CN201921159682.5U patent/CN210715334U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111844861A (en) * | 2020-07-06 | 2020-10-30 | 徐州徐工环境技术有限公司 | System and method for controlling mobile station operation based on sensing garbage stock |
| CN111846715A (en) * | 2020-07-29 | 2020-10-30 | 深圳东风汽车有限公司 | Flow self-adaptive control method for hydraulic system of rear-mounted compression type garbage truck |
| CN111846716A (en) * | 2020-07-29 | 2020-10-30 | 深圳东风汽车有限公司 | Control method of push shovel of kitchen garbage truck during garbage compression |
| CN111846716B (en) * | 2020-07-29 | 2022-05-03 | 深圳东风汽车有限公司 | Control method of push shovel of kitchen garbage truck during garbage compression |
| CN112943732A (en) * | 2021-03-24 | 2021-06-11 | 北京航空航天大学 | Overflow valve with different opening and closing pressures |
| CN112943732B (en) * | 2021-03-24 | 2022-05-17 | 北京航空航天大学 | Overflow valve with different opening and closing pressures |
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