CN212717419U - Crusher electric proportional flow control hydraulic system - Google Patents
Crusher electric proportional flow control hydraulic system Download PDFInfo
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- CN212717419U CN212717419U CN202021475404.3U CN202021475404U CN212717419U CN 212717419 U CN212717419 U CN 212717419U CN 202021475404 U CN202021475404 U CN 202021475404U CN 212717419 U CN212717419 U CN 212717419U
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Abstract
The utility model discloses a crusher electric proportional flow control hydraulic system, include: the hydraulic control reversing valve group comprises a first oil inlet P1, a second oil inlet P2, a first oil outlet A and a second oil outlet B, an oil suction port of the duplex plunger pump is connected with the oil tank assembly, and an oil outlet of the duplex plunger pump is respectively connected with a first oil inlet P1 of the hydraulic control reversing valve group and a second oil inlet P2 of the hydraulic control reversing valve group. In this way, the utility model provides a breaker electric proportional flow control hydraulic system through the discharge capacity of electric proportional flow control module control plunger pump, makes the breaker normally work, changes the rotation direction of breaker motor through the tribit cross valve, and the pilot control valve of tribit cross valve is proportional control, can make steady opening of breaker motor and stop the volume.
Description
Technical Field
The utility model relates to a mine crushing equipment technical field especially relates to a breaker electric proportional flow control hydraulic system.
Background
In order to adapt to different site environment conditions, the crawler-type crusher is driven by a motor and a hydraulic motor. In reality, some broken sites of mines do not have high-voltage power supplies, and the motor drive cannot be used. In view of this, a problem to be solved by those skilled in the art is how to design a crusher driving device that is not constrained by power.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who mainly solves how to provide a discharge capacity through electric proportional flow control module control plunger pump, makes the breaker normally work, changes the rotation direction of breaker motor through the tribit cross valve, and the guide's control valve of tribit cross valve is proportional control, can make the breaker motor steady open with the breaker electric proportional flow control hydraulic system who stops the volume.
In order to solve the technical problem, the utility model discloses a technical scheme be: provided is an electric proportional flow control hydraulic system of a crusher, comprising: the hydraulic control reversing valve comprises an oil tank assembly, an engine, a duplex plunger pump, a first overflow valve, a hydraulic control reversing valve group, an energy accumulator and a motor, wherein the duplex plunger pump comprises an oil suction port and an oil outlet. The hydraulic control reversing valve group comprises a first oil inlet P1, a second oil inlet P2, a first oil outlet A and a second oil outlet B, and hydraulic oil is contained in the oil tank assembly. An oil suction port of the duplex plunger pump is connected with the oil tank assembly, an oil outlet of the duplex plunger pump is connected with a first oil inlet P1 of the hydraulic control reversing valve group and a second oil inlet P2 of the hydraulic control reversing valve group respectively, and the motor is connected with a first oil outlet A of the hydraulic control reversing valve group and a second oil outlet B of the hydraulic control reversing valve group.
In a preferred embodiment, the crusher electric proportional flow control hydraulic system further includes a high-pressure filter and a gear pump, the gear pump is in control connection with the hydraulic control reversing valve set, the gear pump is used for providing pilot control oil for the hydraulic control reversing valve set, the gear pump is connected with the oil tank assembly, hydraulic oil at an oil outlet of the gear pump is connected with an inlet of the high-pressure filter, a part of the filtered hydraulic oil is supplied to the hydraulic control reversing valve set, the other part of the filtered hydraulic oil is connected with an inlet of a second overflow valve, and the hydraulic oil of the gear pump returns to the oil tank assembly through the second overflow valve.
In a preferred embodiment, the hydraulic oil of the oil tank assembly enters the double plunger pump and the gear pump through pipelines respectively.
In a preferred embodiment, the crusher electric proportional flow control hydraulic system further comprises an electromagnetic unloading valve, the electromagnetic unloading valve and the hydraulic control reversing valve set are connected with each other, and the electromagnetic unloading valve and the hydraulic control reversing valve set are powered on and powered off simultaneously.
In a preferred embodiment, the crusher electric proportional flow control hydraulic system further comprises a pressure reducing valve, the pressure reducing valve is in control connection with the accumulator, and hydraulic oil enters the accumulator after opening the pressure reducing valve.
In a preferred embodiment, the crusher electro-proportional flow control hydraulic system further comprises a check valve, the check valve is in control connection with the accumulator, and the accumulator releases pressure through the check valve.
In a preferred embodiment, the crusher electric proportional flow control hydraulic system further includes an overload protection valve, the overload protection valve is connected to the motor, and the high-pressure hydraulic oil at the motor oil outlet enters the low-pressure oil port of the motor through the overload protection valve.
In a preferred embodiment, the crusher electric proportional flow control hydraulic system further comprises a second overflow valve, and an outlet of the second overflow valve is connected with the oil tank assembly.
In a preferred embodiment, the double-piston pump is an electric proportional control double-piston pump.
In a preferred embodiment, the oil suction port of the duplex plunger pump is connected with the oil outlet of the oil tank assembly through a rubber pipe.
The utility model has the advantages that: the displacement of the plunger pump is controlled through the electric proportional flow control module, so that the crusher works normally, the rotation direction of a motor of the crusher is changed through the three-position four-way valve, and the pilot control valve of the three-position four-way valve is in proportional control, so that the motor of the crusher can be started and stopped stably.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic structural diagram of an embodiment of an electric proportional flow control hydraulic system of the crusher of the present invention.
The reference numbers in the drawings are as follows: 1. an oil tank assembly; 2. an engine; 3. a dual plunger pump; 4. a first overflow valve; 5. an electromagnetic unloading valve; 6. a hydraulic control reversing valve bank; 7. a pressure reducing valve; 8. a one-way valve; 9. an accumulator; 10. a motor; 11. an overload protection valve bank; 12. a second overflow valve; 13. a high pressure filter; 14. a gear pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a hydraulic system for controlling proportional flow of a crusher is provided, the hydraulic system comprising: the hydraulic control system comprises an oil tank assembly 1, an engine 2, a duplex plunger pump 3, a first overflow valve 4, a hydraulic control reversing valve group 6, an energy accumulator 9 and a motor 10. The duplex plunger pump 3 comprises an oil suction port and an oil outlet. The hydraulic control reversing valve group 6 comprises a first hydraulic control reversing valve group oil inlet P1, a second hydraulic control reversing valve group oil inlet P2, a first hydraulic control reversing valve group oil outlet A and a second hydraulic control reversing valve group oil outlet B, and hydraulic oil is contained in the oil tank assembly 1. And hydraulic oil of the oil tank assembly 1 respectively enters the double-linked plunger pump 3 and the gear pump 14 through pipelines.
An oil suction port of the duplex plunger pump 3 is connected with the oil tank assembly 1, an oil outlet of the duplex plunger pump 3 is connected with a first oil inlet P1 of the hydraulic control reversing valve group and a second oil inlet P2 of the hydraulic control reversing valve group, and the motor 10 is connected with a first oil outlet A of the hydraulic control reversing valve group and a second oil outlet B of the hydraulic control reversing valve group. The duplex plunger pump 3 is an electric proportional control duplex plunger pump; an oil suction port of the duplex plunger pump 3 is connected with an oil outlet of the oil tank assembly 1 through a rubber pipe.
The crusher electric proportional flow control hydraulic system further comprises a high-pressure filter 13 and a gear pump 14, the gear pump 14 is in control connection with the hydraulic control reversing valve group 6, the gear pump 14 is used for providing pilot control oil for the hydraulic control reversing valve group 6, the gear pump 14 is connected with the oil tank assembly 1, hydraulic oil at an oil outlet of the gear pump 14 is connected with an inlet of the high-pressure filter 13, one part of the filtered hydraulic oil is supplied to the hydraulic control reversing valve group 6, the other part of the filtered hydraulic oil is connected with an inlet of a second overflow valve 12, and the hydraulic oil of the gear pump 14 returns to the oil tank assembly 1 through the second overflow valve 12.
The crusher electric proportional flow control hydraulic system further comprises an electromagnetic unloading valve 5, the electromagnetic unloading valve 5 and the hydraulic control reversing valve group 6 are connected with each other, and the electromagnetic unloading valve 5 and the hydraulic control reversing valve group 6 are powered on and powered off simultaneously.
The crusher electric proportional flow control hydraulic system further comprises a pressure reducing valve 7, the pressure reducing valve 7 is in control connection with the energy accumulator 9, and hydraulic oil enters the energy accumulator 9 after opening the pressure reducing valve 7. The crusher electric proportional flow control hydraulic system further comprises a one-way valve 8, the one-way valve 8 is in control connection with the energy accumulator 9, and the energy accumulator 9 releases pressure through the one-way valve 8.
The crusher electric proportional flow control hydraulic system further comprises an overload protection valve 11, the overload protection valve 11 is connected with the motor 10, and high-pressure hydraulic oil at an oil outlet of the motor 10 enters a low-pressure oil port of the motor 10 through the overload protection valve 11. The crusher electric proportional flow control hydraulic system further comprises a second overflow valve 12, and an outlet of the second overflow valve 12 is connected with the oil tank assembly 1.
In a specific embodiment, the utility model discloses a breaker electric proportional flow control hydraulic system includes oil tank assembly 1, engine 2, electric proportional control duplex plunger pump 3, first overflow valve 4, electromagnetism off-load valve 5, liquid accuse switching-over valves 6, relief pressure valve 7, check valve 8, energy storage ware 9, breaker motor 10, overload protection valves 11, second overflow valve 12, high pressure filter 13 and gear pump 14.
An oil suction port of the duplex plunger pump 3 is connected with an oil outlet of the oil tank assembly 1 through a rubber pipe, an outlet of the duplex plunger pump 3 is connected with oil inlets P1 and P2 of the hydraulic control reversing valve group 6, an outlet A, B of the hydraulic control reversing valve group 6 is respectively connected with an oil inlet of the crusher motor 10, and the oil returned by the crusher motor 10 passes through a T port of the reversing valve group and is finally connected with an oil return port of the hydraulic oil tank.
Pilot control oil of the hydraulic control reversing valve 6 is provided by a gear pump 14, an oil suction rubber pipe of the gear pump 14 is connected with a hydraulic oil tank 1, hydraulic oil 1 at an oil outlet of the gear pump 14 is connected with an inlet of a high-pressure filter 13, one part of the filtered hydraulic pressure is supplied to the pilot oil of the reversing valve group 6 and a proportional valve of the electric proportional control plunger pump 2, the other part of the filtered hydraulic pressure is connected with an inlet of a second overflow valve 12, and an outlet of the second overflow valve 12 is connected with the hydraulic oil tank 1.
The working principle of the utility model is as follows:
after the engine is started, hydraulic oil in the hydraulic oil tank respectively enters the electric proportional control plunger pump 2 and the gear pump 14 through pipelines, the unloading valve 5 of the hydraulic control reversing valve group 6 is not powered, the hydraulic system of the electric proportional control plunger pump 2 is in an unloading state, and the hydraulic system of the gear pump 14 returns oil to the hydraulic oil tank 1 through the second overflow valve 12.
When a worker starts the crusher through a remote controller, one side of the electromagnetic valve 5 and one side of the pilot electromagnetic valve 6 are electrified, high-pressure hydraulic oil at the outlet of the plunger pump 3 is controlled by an electric proportion to enter an A port of a crusher motor 10 through the hydraulic control reversing valve group 6, meanwhile, a part of hydraulic oil opens the pressure reducing valve 7 to enter the energy accumulator 9, and after the hydraulic oil in the energy accumulator 9 reaches the limit, the energy accumulator 9 stops oil inlet.
When the crusher motor 10 needs to stop, a worker stops the button through a remote controller, the electromagnetic valve 5 and the pilot electromagnetic valve 6 are powered off, the valve core of the hydraulic control reversing valve group 6 returns to the middle position, at the moment, the energy accumulator 9 releases pressure through the one-way valve 8, meanwhile, the second one-way valve is opened to provide pressure oil for inertial rotation of the crusher, high-pressure hydraulic oil at the oil outlet of the crusher motor 10 enters the low-pressure oil port of the crusher motor 10 through the overload protection valve 11, and the crusher gradually stops running under the action of the high-pressure overload valve.
Therefore, the utility model has the advantages of it is following: the displacement of the plunger pump is controlled through the electric proportional flow control module, so that the crusher works normally, the rotation direction of a motor of the crusher is changed through the three-position four-way valve, and the pilot control valve of the three-position four-way valve is in proportional control, so that the motor of the crusher can be started and stopped stably.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (10)
1. An electric proportional flow control hydraulic system for a crusher, comprising: the hydraulic control reversing valve comprises an oil tank assembly (1), an engine (2), a duplex plunger pump (3), a first overflow valve (4), a hydraulic control reversing valve group (6), an energy accumulator (9) and a motor (10), wherein the duplex plunger pump (3) comprises an oil suction port and an oil outlet, the hydraulic control reversing valve group (6) comprises a first hydraulic control reversing valve group oil inlet (P1), a second hydraulic control reversing valve group oil inlet (P2), a first hydraulic control reversing valve group oil outlet (A) and a second hydraulic control reversing valve group oil outlet (B), and hydraulic oil is contained in the oil tank assembly (1); an oil suction port of the duplex plunger pump (3) is connected with the oil tank assembly (1) in an interconnecting mode, an oil outlet of the duplex plunger pump (3) is connected with a first oil inlet (P1) of the hydraulic control reversing valve group and a second oil inlet (P2) of the hydraulic control reversing valve group in an interconnecting mode respectively, and the motor (10) is connected with a first oil outlet (A) of the hydraulic control reversing valve group and a second oil outlet (B) of the hydraulic control reversing valve group in an interconnecting mode.
2. The hydraulic system for controlling the proportional flow of the crusher according to claim 1, further comprising a high-pressure filter (13) and a gear pump (14), wherein the gear pump (14) is in control connection with the hydraulic control reversing valve set (6), the gear pump (14) is used for providing pilot control oil for the hydraulic control reversing valve set (6), the gear pump (14) is connected with the oil tank assembly (1) in an interconnecting manner, hydraulic oil at an oil outlet of the gear pump (14) is connected with an inlet of the high-pressure filter (13), a part of the filtered hydraulic oil is supplied to the hydraulic control reversing valve set (6), another part of the filtered hydraulic oil is connected with an inlet of an overflow valve of a second overflow valve (12), and the hydraulic oil of the gear pump (14) returns to the oil tank assembly (1) through the second overflow valve (12).
3. The crusher electric proportional flow control hydraulic system according to claim 2, characterized in that hydraulic oil of the oil tank assembly (1) is respectively fed into the double plunger pump (3) and the gear pump (14) through pipelines.
4. The hydraulic system for controlling the proportional flow of a crusher according to claim 1, further comprising an electromagnetic unloading valve (5), wherein the electromagnetic unloading valve (5) is connected with the hydraulic control reversing valve set (6), and the electromagnetic unloading valve (5) and the hydraulic control reversing valve set (6) are powered on and powered off simultaneously.
5. The hydraulic system for controlling the proportional flow of the crusher according to claim 1, further comprising a pressure reducing valve (7), wherein the pressure reducing valve (7) is in control connection with the accumulator (9), and hydraulic oil enters the accumulator (9) after opening the pressure reducing valve (7).
6. The hydraulic system according to claim 1, characterized in that it further comprises a check valve (8), said check valve (8) being in control connection with the accumulator (9), and the accumulator (9) releasing pressure through the check valve (8).
7. The hydraulic system for proportional flow control of crusher according to claim 1, further comprising an overload protection valve (11), wherein the overload protection valve (11) is connected to the motor (10), and the high-pressure hydraulic oil at the oil outlet of the motor (10) enters the low-pressure oil port of the motor (10) through the overload protection valve (11).
8. The hydraulic system for controlling the flow rate of the electric proportional fluid of the crusher according to claim 1, characterized in that the hydraulic system further comprises a second overflow valve (12), and the outlet of the second overflow valve (12) is connected with the oil tank assembly (1).
9. The crusher electric proportional flow control hydraulic system according to claim 1, characterized in that the double piston pump (3) is an electric proportional control double piston pump.
10. The crusher electric proportional flow control hydraulic system according to claim 1, characterized in that an oil suction port of the duplex plunger pump (3) is connected with an oil outlet of the oil tank assembly (1) through a rubber hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021475404.3U CN212717419U (en) | 2020-07-23 | 2020-07-23 | Crusher electric proportional flow control hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021475404.3U CN212717419U (en) | 2020-07-23 | 2020-07-23 | Crusher electric proportional flow control hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN212717419U true CN212717419U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021475404.3U Active CN212717419U (en) | 2020-07-23 | 2020-07-23 | Crusher electric proportional flow control hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153840A (en) * | 2021-05-21 | 2021-07-23 | 陕西秦森石油装备有限公司 | Large-flow reversing valve oil circuit system of hydraulic oil cylinder |
-
2020
- 2020-07-23 CN CN202021475404.3U patent/CN212717419U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153840A (en) * | 2021-05-21 | 2021-07-23 | 陕西秦森石油装备有限公司 | Large-flow reversing valve oil circuit system of hydraulic oil cylinder |
| CN113153840B (en) * | 2021-05-21 | 2023-11-24 | 陕西秦森石油装备有限公司 | Large-flow reversing valve oil circuit system of hydraulic oil cylinder |
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