CN210087706U - Hydraulic control device of hydraulic clutch of scraper conveyor - Google Patents
Hydraulic control device of hydraulic clutch of scraper conveyor Download PDFInfo
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- CN210087706U CN210087706U CN201920686896.1U CN201920686896U CN210087706U CN 210087706 U CN210087706 U CN 210087706U CN 201920686896 U CN201920686896 U CN 201920686896U CN 210087706 U CN210087706 U CN 210087706U
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- oil
- pipeline
- hydraulic
- oil inlet
- clutch
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Abstract
The utility model relates to a scraper conveyor hydraulic clutch hydraulic control device belongs to mining hydraulic equipment. The utility model adopts the technical proposal that: the hydraulic control system comprises an annular servo oil cylinder with a clutch, wherein a liquid inlet of the annular servo oil cylinder is connected to an oil inlet pipeline, a liquid outlet of the annular servo oil cylinder is connected to an oil outlet pipeline, a radial plunger pump, a filter and a three-position four-way electromagnetic valve are arranged on oil inlet management, an adjustable overflow valve is arranged on the oil outlet pipeline, and the oil inlet pipeline at the front end of the radial plunger pump extends into the oil cylinder. The utility model has the advantages that: the hydraulic clutch control system has the advantages of meeting the requirement of controlling hydraulic clutch, realizing feedback control, having a safe throttling function and avoiding control failure.
Description
Technical Field
The utility model relates to a scraper conveyor hydraulic clutch hydraulic control device belongs to mining hydraulic equipment.
Background
The starting and driving of the electromechanical power equipment are realized by the motor, the running speed is high, and the power adaptability is strong. For coal mining conveying equipment, a scraper conveyor is usually adopted to convey coal in a roadway, the power requirement is high, and the starting and stopping processes of the scraper conveyor have extremely strong inertia overload problems.
Particularly, when the scraper conveyor needs to be stopped, the huge coal loading quantity can impact the motor equipment under the inertia effect. Therefore, a proper clutch is needed to effectively separate the load end from the output of the motor in the stop state, the process needs to be fast, and the safety and the effectiveness in power transmission are guaranteed in use, so that a proper hydraulic clutch control system is needed to solve the problems.
Disclosure of Invention
The invention provides a hydraulic control device of a hydraulic clutch of a scraper conveyor, which solves the problem of hydraulic control of the hydraulic clutch.
In order to achieve the above object, the utility model adopts the following technical scheme:
the hydraulic control device of the hydraulic clutch of the scraper conveyor comprises an annular servo oil cylinder with a clutch, wherein a liquid inlet of the annular servo oil cylinder is connected to an oil inlet pipeline, a liquid outlet of the annular servo oil cylinder is connected to an oil outlet pipeline, a radial plunger pump, a filter and a three-position four-way electromagnetic valve are arranged on oil inlet management, an adjustable overflow valve is arranged on the oil outlet pipeline, and the oil inlet pipeline at the front end of the radial plunger pump extends into the oil cylinder.
Preferably, a differential pressure switch is added at the front end and the rear end of the oil inlet pipeline of the filter, the oil inlet pipeline at the rear end of the radial plunger pump is connected with a tubular overflow valve, and the oil inlet pipeline, the oil outlet pipeline and the tubular overflow valve are introduced into the oil tank.
Preferably, a safety pipeline is arranged between the oil inlet pipeline and the oil outlet pipeline between the three-position four-way electromagnetic valve and the filter, and an adjustable safety valve is arranged on the safety pipeline.
Preferably, the oil inlet pipeline is connected with a pressure sensor at the rear end of the three-position four-way electromagnetic valve, and the pressure sensor and a signal wire of the three-position four-way electromagnetic valve are connected with a controller based on a PLC or a single chip microcomputer.
The utility model has the advantages that:
the hydraulic clutch control system has the advantages of meeting the requirement of controlling hydraulic clutch, realizing feedback control, having a safe throttling function and avoiding control failure.
Drawings
Fig. 1 is a connection relationship diagram of the present invention.
FIG. 2 is a block diagram of the pressure sensor connections and controller.
Reference numerals:
1 servo oil cylinder 2 oil inlet pipeline 3 oil outlet pipeline 4 radial plunger pump 5 filter 6 three-position four-way solenoid valve 7 adjustable overflow valve 8 oil tank 9 differential pressure switch 10 tubular overflow valve 11 safety pipeline 12 adjustable safety valve 13 pressure sensor 14 controller.
Detailed Description
The utility model relates to a hydraulic control device is applied to scraper conveyor's clutch.
The following is a description of the specific structure of the present invention: fig. 1 is a connection diagram of the components of the present invention.
The hydraulic control device of the hydraulic clutch of the scraper conveyor comprises a servo oil cylinder 1 driving the clutch, wherein the servo oil cylinder 1 acts on the clutch, a piston of the servo oil cylinder 1 extends out, the clutch is connected with a power shaft, the piston of the servo oil cylinder 1 retracts, and the clutch stops outputting the power shaft.
The specific structure is that the liquid inlet of the servo oil cylinder 1 is connected to the oil inlet pipeline 2, the liquid outlet of the annular servo oil cylinder 1 is connected to the oil outlet pipeline 3, and the oil inlet management is provided with a radial plunger pump 4, a filter 5 and a three-position four-way electromagnetic valve 6. The oil inlet pipeline 2 is connected with a pressure sensor 13 at the rear end of the three-position four-way electromagnetic valve 6, and the pressure sensor 13 and a signal wire of the three-position four-way electromagnetic valve 6 are connected with a controller 14 based on a PLC or a single chip microcomputer.
An oil inlet pipeline 2 at the front end of a radial plunger pump 4 extends into an oil tank 8, hydraulic oil in the oil tank is pumped out by the radial plunger pump 4, the hydraulic oil is filtered out by a filter 5 to remove impurities which may cause failure of the servo oil cylinder and damage to a sealed environment, and the filtered hydraulic oil enters the servo oil cylinder through a three-position four-way electromagnetic valve 6 in a conducting state. The pressure sensor arranged on the oil inlet pipeline monitors the pressure in the oil inlet pipeline at any time, the oil inlet pipeline is communicated with the servo oil cylinder, and then the pressure state of the servo oil cylinder is monitored.
An adjustable overflow valve 7 is arranged on the oil outlet pipeline 3, the adjustable overflow valve 7 is used for stabilizing the pressure in the hydraulic oil cylinder, the pressure of the servo oil cylinder is ensured to be in a stable working state, if the pressure is too large, the adjustable overflow valve 7 is communicated to reduce the pressure in the servo oil cylinder, and the safe working of the servo oil cylinder is ensured.
The filter 5 is provided with a differential pressure switch 9 at the front end and the rear end of the oil inlet pipeline 2, and the differential pressure switch ensures the normal smoothness of the oil inlet pipeline. When the filter 5 is blocked by impurities, the differential pressure switch 9 detects that the pressures at the two ends of the differential pressure switch 9 are not opened simultaneously, and the differential pressure switch is used as a redundant safety pipeline of an oil inlet pipeline.
An oil inlet pipeline 2 at the rear end of the radial plunger pump 4 is connected into a tubular overflow valve 10, and the oil inlet pipeline 2, an oil outlet pipeline 3 and the tubular overflow valve 10 are communicated into an oil tank 8. A safety pipeline 11 is arranged between the oil inlet pipeline 2 and the oil outlet pipeline 3 between the three-position four-way electromagnetic valve 6 and the filter 5, and an adjustable safety valve 12 is arranged on the safety pipeline 11. After the three-position four-way electromagnetic valve 6 is closed, hydraulic oil pumped by the radial plunger pump 4 flows into an oil tank through the tubular overflow valve 10 or the adjustable safety valve 12, and overload damage to the radial plunger pump 4 is avoided.
The working process of the product is as follows:
when the clutch works normally, hydraulic oil acts on the servo oil cylinder through the radial plunger pump, the filter and the three-position four-way valve, so that the on-off of the clutch is controlled on the clutch. Wherein the control of the three-position four-way electromagnetic valve is provided by the controller, and the pressure sensor detects the pressure on the oil inlet pipeline. The controller directly gives a direct-current control signal to the three-position four-way electromagnetic valve, the three-position four-way electromagnetic valve is driven by positive current, hydraulic oil is controlled to enter the servo oil cylinder through the three-position four-way electromagnetic valve, the pressure in the servo oil cylinder rises, and the clutch is driven to work to achieve power connection of the scraper conveyor. If the controller directly gives a reverse control signal to the three-position four-way electromagnetic valve, the three-position four-way electromagnetic valve is driven by reverse current to control hydraulic oil to flow out of the servo oil cylinder, the servo oil cylinder returns, the clutch stops acting, and power transmission of the scraper conveyor stops. And the clutch is controlled by hydraulic pressure, so that the stability is good.
Claims (4)
1. The hydraulic control device of the hydraulic clutch of the scraper conveyor is characterized by comprising a servo oil cylinder (1) driving the clutch, wherein a liquid inlet of the servo oil cylinder (1) is connected to an oil inlet pipeline (2), a liquid outlet of an annular servo oil cylinder (1) is connected to an oil outlet pipeline (3), a radial plunger pump (4), a filter (5) and a three-position four-way electromagnetic valve (6) are arranged on oil inlet management, an adjustable overflow valve (7) is arranged on the oil outlet pipeline (3), and the oil inlet pipeline (2) at the front end of the radial plunger pump (4) extends into an oil tank (8).
2. The hydraulic clutch control device of the scraper conveyor is characterized in that a differential pressure switch (9) is added to the front end and the rear end of the oil inlet pipeline (2) of the filter (5), the oil inlet pipeline (2) at the rear end of the radial plunger pump (4) is connected into a tubular overflow valve (10), and the oil inlet pipeline (2), the oil outlet pipeline (3) and the tubular overflow valve (10) are communicated into an oil tank (8).
3. The hydraulic clutch hydraulic control device of the scraper conveyor as claimed in claim 1, characterized in that a safety pipeline (11) is arranged between the oil inlet pipeline (2) and the oil outlet pipeline (3) between the three-position four-way solenoid valve (6) and the filter (5), and an adjustable safety valve (12) is arranged on the safety pipeline (11).
4. The hydraulic clutch hydraulic control device of the scraper conveyor as claimed in claim 1, wherein the oil inlet pipeline (2) is connected with a pressure sensor (13) at the rear end of the three-position four-way solenoid valve (6), and signal wires of the pressure sensor (13) and the three-position four-way solenoid valve (6) are connected with a controller (14) based on a PLC or a single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920686896.1U CN210087706U (en) | 2019-05-15 | 2019-05-15 | Hydraulic control device of hydraulic clutch of scraper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920686896.1U CN210087706U (en) | 2019-05-15 | 2019-05-15 | Hydraulic control device of hydraulic clutch of scraper conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087706U true CN210087706U (en) | 2020-02-18 |
Family
ID=69478265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920686896.1U Expired - Fee Related CN210087706U (en) | 2019-05-15 | 2019-05-15 | Hydraulic control device of hydraulic clutch of scraper conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749998A (en) * | 2020-06-18 | 2020-10-09 | 中国煤炭科工集团太原研究院有限公司 | Transmission system of mining conveying part, moment limiting speed reducer of transmission system and control method of moment limiting speed reducer |
-
2019
- 2019-05-15 CN CN201920686896.1U patent/CN210087706U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749998A (en) * | 2020-06-18 | 2020-10-09 | 中国煤炭科工集团太原研究院有限公司 | Transmission system of mining conveying part, moment limiting speed reducer of transmission system and control method of moment limiting speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200630 Address after: Hongxu town xihou Zhuang, Tengzhou City, Zaozhuang City, Shandong Province Patentee after: Shandong Quanxing mining Refco Group Ltd. Address before: 277500 Quanxing Mine Living Area, Hongxu Town, Tengzhou City, Zaozhuang City, Shandong Province Patentee before: Li Fuzhen |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 Termination date: 20210515 |