CN204895439U - Underground scraper braking system with starter protect function - Google Patents
Underground scraper braking system with starter protect function Download PDFInfo
- Publication number
- CN204895439U CN204895439U CN201520605623.1U CN201520605623U CN204895439U CN 204895439 U CN204895439 U CN 204895439U CN 201520605623 U CN201520605623 U CN 201520605623U CN 204895439 U CN204895439 U CN 204895439U
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- valve
- oil inlet
- oil
- starter motor
- hydraulic pump
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Abstract
The utility model discloses underground scraper braking system with starter protect function relates to a hydraulic system who uses when being used for the underground scraper braking. Its purpose is in order to provide the underground scraper braking system with starter protect function that can prolong starter and underground scraper life. The utility model discloses underground scraper braking system with starter protect function includes the hydraulic pump that links to each other with the oil tank, the oil -out of hydraulic pump is linked together with the oil inlet of prefill valve and the oil inlet of protection solenoid valve simultaneously, the off -load mouth of prefill valve all is linked together with the oil tank with the oil return opening of protection solenoid valve, the actuator port of prefill valve is linked together with the oil inlet of energy storage ware and the oil inlet of manual brake valve simultaneously, the actuator port of manual brake valve is linked together with the oil inlet of foot control valve, the oil return opening of manual brake valve and the oil return opening of foot control valve all are linked together with the oil tank, the actuator port while of foot control valve is linked together with the pole chamber that has of front axle brake cylinder and rear axle brake cylinder.
Description
Technical field
The utility model relates to a kind of hydraulic efficiency pressure system, particularly relates to a kind of brake system of underground carry scraper.
Background technology
Along with the development of China's mine cause and the progress of science and technology, underground trackless equipment achieves significant progress, and especially in recent years, along with the raising of mining technical merit and the increasing of the market demand, the application of underground carry scraper was more extensive.Along with underground large-scale winning equipment automation, intelligentized application, mining cost improves thereupon, and economic benefit reduces.In order to reduce mining cost, increasing economic efficiency, reduce underground carry scraper use cost, extending underground carry scraper is become a kind of inevitable trend service life.At present, when domestic underground carry scraper starts, brake system prefill valve produces certain load when giving energy storage topping up, starter motor is always with and carries startup, and the service life of starter motor reduces, and reduces the service life of underground carry scraper.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of underground carry scraper brake system with starter motor defencive function that can extend starter motor and underground carry scraper service life.
The utility model is with the underground carry scraper brake system of starter motor defencive function, comprise the Hydraulic Pump be connected with fuel tank, the oil outlet of Hydraulic Pump simultaneously with the oil inlet of prefill valve with protect the oil inlet of electromagnetic valve and be connected, the unloading port of prefill valve is all connected with fuel tank with the return opening of protection electromagnetic valve, the actuator port of prefill valve is connected with the oil inlet of parking brake valve with the oil inlet of energy storage simultaneously, the actuator port of parking brake valve is connected with the oil inlet of foot valve, the return opening of parking brake valve is all connected with fuel tank with the return opening of foot valve, the actuator port of foot valve is connected with the rod chamber of propons brake cylinder with back axle brake cylinder simultaneously.
The utility model, with the underground carry scraper brake system of starter motor defencive function, wherein also comprises by pass valve, and the oil inlet of described by pass valve is connected with the oil outlet of Hydraulic Pump, and the return opening of by pass valve is connected with fuel tank.
The utility model, with the underground carry scraper brake system of starter motor defencive function, wherein also comprises check valve, and the oil inlet of described check valve is connected with the actuator port of foot valve, and the oil outlet of check valve is connected with the oil inlet of foot valve.
The utility model is with the underground carry scraper brake system of starter motor defencive function; before the oil outlet of wherein said Hydraulic Pump and the oil inlet of prefill valve, high pressure filter is installed; the oil outlet of Hydraulic Pump is connected with the oil inlet of high pressure filter, and the oil outlet of high pressure filter is connected with the oil inlet of prefill valve.
The utility model, with the underground carry scraper brake system of starter motor defencive function, is provided with oil absorption filter between wherein said Hydraulic Pump and fuel tank.
The utility model is with the underground carry scraper brake system of starter motor defencive function, and wherein said parking brake valve is two-position three-way hand change valve, and parking brake valve also has a pressure detection mouth, and pressure detection mouth is connected with pressure alarm switch.
The utility model is with the underground carry scraper brake system of starter motor defencive function, and wherein said foot valve is 3-position-3-way hand control change-over valve.
With the underground carry scraper brake system difference from prior art of starter motor defencive function, the utility model is that the underground carry scraper brake system of the utility model with starter motor defencive function adds a protection electromagnetic valve that can realize starter motor starting under no-load condition on the basis of the existing underground carry scraper brake system with starter motor defencive function; the protection oil inlet of electromagnetic valve is connected with the oil inlet of prefill valve with the oil outlet of Hydraulic Pump, and the mode of operation of protection electromagnetic valve is controlled by starter motor.When starter motor starts, protection electromagnetic valve obtains electric, the high pressure oil in pipeline is flowed back to fuel tank through its return opening, ensure that starter motor starts under non-loaded state, can extend service life of starter motor and underground carry scraper by actv..
Below in conjunction with accompanying drawing, the underground carry scraper brake system with starter motor defencive function of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the utility model with the underground carry scraper brake system of starter motor defencive function.
Detailed description of the invention
As shown in Figure 1, the utility model comprises fuel tank 1 with the underground carry scraper brake system of starter motor defencive function, and Hydraulic Pump 3 is connected with fuel tank 1, is provided with oil absorption filter 2 between Hydraulic Pump 3 and fuel tank 1.The oil outlet of Hydraulic Pump 3 is connected with the oil inlet P 11 of high pressure filter 5, the oil outlet P12 of high pressure filter 5 simultaneously with the oil inlet P 1 of prefill valve 6, protect the oil inlet P 2 of electromagnetic valve 4 to be connected with the oil inlet P 5 of by pass valve 14.The unloading port B1 of prefill valve 6, oil return inlet T 5, the protection oil return inlet T 1 of electromagnetic valve 4 are all connected with fuel tank 1 with the oil return inlet T 4 of by pass valve 14.The actuator port R of prefill valve 6 is connected with the oil inlet P 3 of parking brake valve 8 with the oil inlet of energy storage 9 simultaneously.Two-position three-way hand change valve selected by parking brake valve 8, and the oil return inlet T 2 of parking brake valve 8 is connected with fuel tank 1, and the actuator port A1 of parking brake valve 8 is connected with the oil inlet P 4 of foot valve 7.In addition parking brake valve 8 also has a pressure detection mouth B2, and pressure detection mouth B2 is connected with pressure alarm switch 10.Pressure alarm switch 10 is for the force value in Real-Time Monitoring energy storage 9, and when energy storage 9 pressure is lower than design value, pressure switch gives the alarm, and prompting driver checks brake system, ensures safety.Foot valve 7 selects 3-position-3-way hand control change-over valve, and the actuator port A2 of foot valve 7 is connected with the rod chamber of propons brake cylinder 11 with back axle brake cylinder 13 simultaneously, and the oil return inlet T 3 of foot valve 7 is connected with fuel tank 1.Check valve 12 is in parallel with foot valve 7, and the oil inlet of check valve 12 is connected with the actuator port A2 of foot valve 7, and the oil outlet of check valve 12 is connected with the oil inlet P 4 of foot valve 7.
The utility model has parking brake valve 8 and foot valve 7 with the underground carry scraper brake system of starter motor defencive function, and the two all can carry out braking operation.Wherein the principle of work of parking brake valve 8 is as follows: when parking brake valve 8 discharges, the next upper work of parking brake valve 8, the oil inlet P 3 mouthfuls of parking brake valve 8 is connected with actuator port A1, pressure oil in energy storage 9 enters the rod chamber of propons brake cylinder 11 and back axle brake cylinder 13 successively through parking brake valve 8 and foot valve 7, each brake cylinder obtains pressurising, piston rod moves in cylinder, and spring is compressed, underground carry scraper brake off; When parking brake valve 8 performs braking, the work of parking brake valve 8 bottom, the oil return inlet T 2 mouthfuls of parking brake valve 8 is connected with actuator port A1, hydraulic oil in propons brake cylinder 11 and back axle brake cylinder 13 is back to fuel tank 1 through check valve 12 and parking brake valve 8 successively, each brake cylinder pressure release, piston rod moves under spring force outside cylinder, and underground carry scraper is braked.
The principle of work of foot valve 7 is as follows: now parking brake valve 8 is in release position, when not applying trampling power to foot valve 7, the oil inlet P 3 of foot valve 7 is communicated with actuator port A1, pressure oil in energy storage 9 enters the rod chamber of propons brake cylinder 11 and back axle brake cylinder 13 successively through parking brake valve 8 and foot valve 7, each brake cylinder obtains pressurising, piston rod moves in cylinder, and spring is compressed, underground carry scraper brake off; When to foot valve 7 trampling to nadir time, the oil return inlet T 3 of foot valve 7 is connected with actuator port A2, hydraulic oil in propons brake cylinder 11 and back axle brake cylinder 13 is back to fuel tank 1 through the oil return inlet T 3 of foot valve 7, piston rod moves under spring force outside cylinder, and underground carry scraper is braked; When to foot valve 7 trampling to intermediate point time, then three hydraulic fluid ports of foot valve 7 are not communicated with each other, and propons brake cylinder 11 and back axle brake cylinder 13 state keep braking or keep release braking.
In addition; while underground carry scraper starter motor starts; protection electromagnetic valve 4 obtains electric; spool moves right; the left position work of protection electromagnetic valve 4, the oil inlet P 2 of protection electromagnetic valve 4 is connected with oil return inlet T 1, and the pressure oil that Hydraulic Pump 3 pumps flows back to fuel tank 1 by high pressure filter 5 and protection electromagnetic valve 4; ensure that starter motor starts under no-load condition, the service life of starter motor can be extended.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (7)
1. the underground carry scraper brake system with starter motor defencive function, it is characterized in that: comprise the Hydraulic Pump be connected with fuel tank, the oil outlet of Hydraulic Pump simultaneously with the oil inlet (P1) of prefill valve with protect the oil inlet of electromagnetic valve (P2) and be connected, the unloading port (B1) of prefill valve is all connected with fuel tank with the return opening (T1) of protection electromagnetic valve, the actuator port (R) of prefill valve is connected with the oil inlet (P3) of parking brake valve with the oil inlet of energy storage simultaneously, the actuator port (A1) of parking brake valve is connected with the oil inlet (P4) of foot valve, the return opening (T2) of parking brake valve is all connected with fuel tank with the return opening (T3) of foot valve, the actuator port (A2) of foot valve is connected with the rod chamber of propons brake cylinder with back axle brake cylinder simultaneously.
2. the underground carry scraper brake system with starter motor defencive function according to claim 1; it is characterized in that: also comprise by pass valve; the oil inlet (P5) of described by pass valve is connected with the oil outlet of Hydraulic Pump, and the return opening (T4) of by pass valve is connected with fuel tank.
3. the underground carry scraper brake system with starter motor defencive function according to claim 1; it is characterized in that: also comprise check valve; the oil inlet of described check valve is connected with the actuator port (A2) of foot valve, and the oil outlet of check valve is connected with the oil inlet (P4) of foot valve.
4. the underground carry scraper brake system with starter motor defencive function according to claim 1; it is characterized in that: before the oil outlet of described Hydraulic Pump and the oil inlet (P1) of prefill valve, high pressure filter is installed; the oil outlet of Hydraulic Pump is connected with the oil inlet (P11) of high pressure filter, and the oil outlet (P12) of high pressure filter is connected with the oil inlet (P1) of prefill valve.
5. the underground carry scraper brake system with starter motor defencive function according to claim 1, is characterized in that: be provided with oil absorption filter between described Hydraulic Pump and fuel tank.
6. the underground carry scraper brake system with starter motor defencive function according to claim 1; it is characterized in that: described parking brake valve is two-position three-way hand change valve; parking brake valve also has a pressure detection mouth (B2), and pressure detection mouth (B2) is connected with pressure alarm switch.
7. the underground carry scraper brake system with starter motor defencive function according to claim 1, is characterized in that: described foot valve is 3-position-3-way hand control change-over valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605623.1U CN204895439U (en) | 2015-08-12 | 2015-08-12 | Underground scraper braking system with starter protect function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605623.1U CN204895439U (en) | 2015-08-12 | 2015-08-12 | Underground scraper braking system with starter protect function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204895439U true CN204895439U (en) | 2015-12-23 |
Family
ID=54917641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520605623.1U Expired - Fee Related CN204895439U (en) | 2015-08-12 | 2015-08-12 | Underground scraper braking system with starter protect function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204895439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278239A (en) * | 2018-04-28 | 2018-07-13 | 北京博望盛达商贸有限公司 | Effectively reduce the Full automatic bus lift frame hydraulic system of return oil pressure |
| CN112519740A (en) * | 2020-12-25 | 2021-03-19 | 中国煤炭科工集团太原研究院有限公司 | Man-machine interactive line control brake system and method for coal mine trackless auxiliary transport robot |
-
2015
- 2015-08-12 CN CN201520605623.1U patent/CN204895439U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278239A (en) * | 2018-04-28 | 2018-07-13 | 北京博望盛达商贸有限公司 | Effectively reduce the Full automatic bus lift frame hydraulic system of return oil pressure |
| CN112519740A (en) * | 2020-12-25 | 2021-03-19 | 中国煤炭科工集团太原研究院有限公司 | Man-machine interactive line control brake system and method for coal mine trackless auxiliary transport robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20151223 Termination date: 20200812 |