CN218717813U - Underground scraper bucket control system and underground scraper - Google Patents
Underground scraper bucket control system and underground scraper Download PDFInfo
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- CN218717813U CN218717813U CN202223094538.2U CN202223094538U CN218717813U CN 218717813 U CN218717813 U CN 218717813U CN 202223094538 U CN202223094538 U CN 202223094538U CN 218717813 U CN218717813 U CN 218717813U
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Abstract
The utility model discloses an underground scraper bucket control system and underground scraper car belongs to the mining machinery field. The utility model comprises a hydraulic oil tank, a dumping oil cylinder, a hydraulic pump, a reversing valve and a function valve, wherein an oil inlet of the hydraulic pump is communicated with the hydraulic oil tank, and an oil outlet of the hydraulic pump is communicated with the reversing valve; the reversing valve is provided with a first oil port and a second oil port, the first oil port is connected with the rod cavity through a first oil path, and the second oil port is connected with the rodless cavity through a second oil path; the function valve includes a check valve and an electromagnetic valve, the electromagnetic valve is connected with the check valve and configured to control opening and closing of the check valve, and the check valve communicates the first oil passage and the second oil passage and the hydraulic oil tank. The utility model aims to overcome among the prior art underground scraper's no scraper bowl floating function, utilize the solenoid valve break-make to control the break-make of empting hydro-cylinder and hydraulic tank, and then utilize the dead weight of scraper bowl to make the scraper bowl have the floating function and realize the self-adaptation remove level and smooth tunnel.
Description
Technical Field
The utility model relates to a mining machinery technical field, more specifically say, relate to an underground scraper shovel control system and underground scraper.
Background
At present, the scraper used in underground mining at home and abroad mainly takes an internal combustion scraper driven by a diesel engine as a main engine, and the underground scraper is loading, transporting and unloading equipment which takes the diesel engine as a prime mover, adopts hydraulic or hydraulic-mechanical transmission, adopts an articulated vehicle frame, adopts tire walking and adopts a front-end front-unloading type bucket.
In the prior art, most underground scraper operators need to operate hand levers to control the lifting of the scraper bucket to adapt to the rugged road surface of the roadway, the operation skills of the operators are tested, and the application range of the scraper is limited. The operation is difficult and the working efficiency is low under the working conditions that the roadway needs to be leveled and the like.
Aiming at the problems, the invention provides the following name through retrieval: a hydraulic system for suspending and floating of a movable arm of a scraper (application number: CN202021807767.2, application date: 26/08/2020) comprises a reversing valve I, a reversing valve II, a reversing valve III, an overflow valve, a movable arm oil cylinder and a hydraulic lock, wherein the hydraulic lock is connected with a rod cavity of the movable arm oil cylinder through an oil way I, and the hydraulic lock is communicated with a rodless cavity of the movable arm oil cylinder through an oil way II. The reversing valve I is connected with the oil way II, the reversing valve II is connected with the oil way I, and the reversing valve III is connected with the oil way II. The reversing valve I is respectively connected with a control cavity of the reversing valve II and a control cavity of the reversing valve III through a port B, and the reversing valve III is connected with the port B of the reversing valve II through a port B and an overflow valve. And the T port of the reversing valve I, the T port of the reversing valve II and the T port of the reversing valve III are respectively connected with an oil tank. The structure can prevent the materials in the bucket from spilling and prevent harmful impact on the frame of the scraper.
In the above patent, when the load pressure of the boom cylinder is smaller than the set pressure value of the overflow valve, the ports a and B of the overflow valve are closed, the oil passages of the rod chamber and the rodless chamber of the boom cylinder are cut off, and the boom cylinder is in a floating state. However, the floating state refers to a state that the movable arm fluctuates up and down slightly in the advancing process when the bucket is filled with materials, and the movable arm cannot carry out leveling operation on the roadway when meeting a large fluctuant and uneven roadway.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The utility model aims to overcome among the prior art underground scraper's no scraper bowl function of floating, operating personnel need the operating arm pole to remove the lift of control scraper bowl with the rugged and uneven road surface not enough in adaptation tunnel, an underground scraper bucket control system and underground scraper are provided, utilize the solenoid valve break-make to control and empty the break-make of hydro-cylinder and hydraulic tank, and then utilize the dead weight of scraper bowl to make the scraper bowl have the function of floating and realize that the self-adaptation removes level and smooth tunnel.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the bucket control system of the underground carry scraper comprises a hydraulic oil tank, a dumping oil cylinder, a hydraulic pump, a reversing valve and a functional valve, wherein the dumping oil cylinder comprises a rodless cavity and a rod cavity and is used for driving a bucket to move up and down; the oil inlet of the hydraulic pump is communicated with the hydraulic oil tank, and the oil outlet of the hydraulic pump is communicated with the reversing valve; the reversing valve is provided with a first oil port and a second oil port, the first oil port is connected with the rod cavity through a first oil path, and the second oil port is connected with the rodless cavity through a second oil path; and the functional valve is arranged on the first oil way and the second oil way and comprises a one-way valve and an electromagnetic valve, the electromagnetic valve is connected with the one-way valve and is configured to control the opening and closing of the one-way valve, and the one-way valve is communicated with the first oil way, the second oil way and the hydraulic oil tank.
As a further improvement, the check valve includes a first pilot operated check valve, a first oil circuit is connected to first pilot operated check valve one end, hydraulic tank is connected to the first pilot operated check valve other end, the first pilot operated check valve switching of solenoid valve control.
As a further improvement, the check valve further includes a second hydraulic control check valve, the second oil circuit is connected to second hydraulic control check valve one end, hydraulic tank is connected to the second hydraulic control check valve other end, the switching of the first hydraulic control check valve of solenoid valve simultaneous control and the second hydraulic control check valve.
As a further improvement, the function valve further comprises a shuttle valve, two oil inlets of the shuttle valve are respectively communicated with the first oil path and the second oil path, and an outlet of the shuttle valve is communicated with the oil inlet of the electromagnetic valve.
As a further improvement, the opening and closing of the solenoid valve is controlled by an electronic switch, which is disposed in the cab.
As a further improvement, the reversing valve includes the hydraulic control reversing valve, hydraulic control reversing valve oil inlet intercommunication hydraulic pump oil-out, the first oil-out intercommunication first oil circuit on the hydraulic control reversing valve, the second oil-out intercommunication second oil circuit on the hydraulic control reversing valve.
As a further improvement, a safety overflow valve is further arranged in the reversing valve, and the safety overflow valve is used for discharging redundant hydraulic oil to a hydraulic oil tank in the return circuit.
The underground scraper comprises the bucket control system of the underground scraper and a bucket, wherein the bucket is driven by a dumping oil cylinder to move up and down.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
(1) The utility model discloses increased the functional valve in hydraulic system, wherein through the switching and shutting of the on-off control liquid accuse check valve of solenoid valve, and then control the intercommunication and the disconnection of having pole chamber and no pole chamber and hydraulic tank of empting the hydro-cylinder, can make underground scraper vehicle utilize its scraper bowl self weight and certain pressure to level and smooth fast the tunnel, effectively improved the maneuverability of scraper and enlarged the range of application of scraper.
(2) The utility model discloses a through be equipped with control solenoid's electronic switch in the driver's cabin, and then the break-make that can the remote control solenoid valve realizes the scraper bowl of underground shovel car floating function has or not, then makes the solenoid valve open through the switch when needs carry out the leveling operation to the tunnel, and then floating function opens, otherwise then closes floating function, utilizes the handle bar to control the scraper bowl and carries out other operations, easy operation.
Drawings
FIG. 1 is a schematic view of a shovel car bucket floatation system.
The reference numerals in the schematic drawings illustrate:
100. a hydraulic oil tank;
200. dumping the oil cylinder; 201. a rod cavity; 202. a rodless cavity;
300. a hydraulic pump;
400. a diverter valve; 401. a first oil port; 402. a second oil port; 403. a hydraulic control directional control valve; 404. a safety overflow valve;
500. a functional valve; 501. a one-way valve; 501a, a first hydraulic control one-way valve; 501b, a second hydraulic control one-way valve; 502. an electromagnetic valve; 503. a shuttle valve;
600. a first oil port;
700. a second oil port.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The structure, proportion, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the limit conditions of the present invention, so that the present invention has no technical essence, and any structural modification, proportion relation change or size adjustment should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the relative positions may be changed or adjusted without substantial technical changes.
The present invention will be further described with reference to the following examples, referring to fig. 1.
A bucket control system of an underground scraper comprises a hydraulic oil tank 100, a dumping oil cylinder 200, a hydraulic pump 300, a reversing valve 400 and a functional valve 500, wherein the dumping oil cylinder 200 comprises a rodless cavity 202 and a rod cavity 201 and is used for driving a bucket to move up and down; an oil inlet of the hydraulic pump 300 is communicated with the hydraulic oil tank 100, an oil outlet of the hydraulic pump 300 is communicated with the reversing valve 400, hydraulic oil is sucked from the hydraulic oil tank 100 by the hydraulic pump 300, and formed pressure oil is discharged to the reversing valve 400.
An oil inlet is formed in one side of the reversing valve 400 and is communicated with the hydraulic pump 300, the reversing valve 400 is further provided with a first oil port 401 and a second oil port 402, the first oil port 401 is connected with the rod cavity 201 through a first oil path 600, and the second oil port 402 is connected with the rodless cavity 202 through a second oil path 700; the function valve 500 is provided on the first oil passage 600 and the second oil passage 700.
Further, the function valve 500 includes a check valve 501 and a solenoid valve 502, the solenoid valve 502 is connected to the check valve 501, the solenoid valve 502 is configured to control opening and closing of the check valve 501, and the check valve 501 communicates the first oil passage 600 and the second oil passage 700 with the hydraulic oil tank 100. The hydraulic oil in the rod chamber 201 and the hydraulic oil in the rodless chamber 202 are communicated with the hydraulic oil tank 100 through the selector valve 400.
The functional valves 500 are arranged on the first oil path 600 and the second oil path 700, wherein the functional valves 500 are provided with one-way valves 501 and electromagnetic valves 502, the electromagnetic valves 502 control the opening and closing of the one-way valves 501, when the floating function of the bucket needs to be started, the one-way valves 501 are kept in a through state, then the hydraulic oil in the rod cavity 201 enters the hydraulic oil tank 100 through the one-way valves 501, meanwhile, the hydraulic oil in the rodless cavity 202 enters the hydraulic mailbox through the one-way valves 501, at the moment, the hydraulic oil in the rod cavity 201 and the rodless cavity 202 is equivalent to a communicated state, then the bucket is always in contact with the ground under the action of self gravity, and the roadway can be quickly and effectively leveled.
In one embodiment, the check valve 501 includes a first pilot-controlled check valve 501a, one end of the first pilot-controlled check valve 501a is connected to the first oil path 600, the other end of the first pilot-controlled check valve 501a is connected to the hydraulic oil tank 100, and the solenoid valve 502 controls the first pilot-controlled check valve 501a to open and close. The check valve 501 further includes a second hydraulic check valve 501b, one end of the second hydraulic check valve 501b is connected to the second oil passage 700, the other end of the second hydraulic check valve 501b is connected to the hydraulic oil tank 100, and the electromagnetic valve 502 controls the opening and closing of the first hydraulic check valve 501a and the second hydraulic check valve 501b simultaneously.
Further, the check valve 501 includes a first pilot check valve 501a and a second pilot check valve 501b, the first pilot check valve 501a communicates with the rod chamber 201 and the hydraulic oil tank 100, and the second pilot check valve 501b communicates with the rodless chamber 202 and the hydraulic oil tank 100. The opening and closing of the first pilot check valve 501a and the second pilot check valve 501b are controlled by the solenoid valve 502 at the same time, and the pilot check valve 501 is a valve that can reverse the flow of the check valve 501 by controlling the fluid pressure.
Therefore, after the electromagnetic valve 502 is energized, high-pressure oil enters the first hydraulic control one-way valve 501a and the second hydraulic control one-way valve 501b through the electromagnetic valve 502, so that the first hydraulic control one-way valve 501a and the second hydraulic control one-way valve 501b are both in an open state, and at the moment, the bucket is always attached to the ground by the self weight of the bucket; when the electromagnetic valve 502 is in the power-off state, high-pressure oil enters the electromagnetic valve 502, but the first hydraulic control one-way valve 501a and the second hydraulic control one-way valve 501b cannot be in the open state, that is, the one-way valve 501 is in the closed state, and the rod cavity 201 and the rodless cavity 202 of the dumping oil cylinder 200 realize the retraction of the bucket according to the state of the reversing valve 400.
Still further, the function valve 500 further comprises a shuttle valve 503, and an outlet of the shuttle valve 503 is communicated with an oil inlet of the electromagnetic valve 502. The shuttle valve 503 is provided with two oil inlets and one oil outlet, the two oil inlets of the shuttle valve 503 are respectively communicated with the first oil path 600 and the second oil path 700, and when the oil pressure in the first oil path 600 is higher than the oil pressure in the second oil path 700, the hydraulic oil in the first oil path 600 enters the electromagnetic valve 502 through the shuttle valve 503; when the oil pressure in the second oil passage 700 is higher than the oil pressure in the first oil passage 600, the hydraulic oil in the second oil passage 700 enters the solenoid valve 502 through the shuttle valve 503. A shuttle valve 503 is provided in the function valve 500 so that the entire structure becomes compact.
In one embodiment, the opening and closing of the solenoid valve 502 is controlled by an electronic switch disposed in the cab, and an operator operates the electronic switch in the cab to control the energization and de-energization of the solenoid valve 502, and thus the opening and closing of the floating function of the bucket, to achieve the operability and versatility of the shovel.
The reversing valve 400 comprises a hydraulic control reversing valve 403, an oil inlet of the hydraulic control reversing valve 403 is communicated with an oil outlet of the hydraulic pump 300, a first oil outlet of the hydraulic control reversing valve 403 is communicated with the first oil path 600, and a second oil outlet of the hydraulic control reversing valve 403 is communicated with the second oil path 700. A safety overflow valve 404 is further arranged in the reversing valve 400, and the safety overflow valve 404 is used for discharging redundant hydraulic oil in the loop to the hydraulic oil tank 100. The hydraulic control directional valve 403 guides the hydraulic oil sucked up by the hydraulic pump 300, a first oil outlet of the hydraulic control directional valve is connected with the first oil path 600, the hydraulic oil flowing out from the first oil outlet reaches the inside of the rod chamber 201 through the first oil path 600, and the hydraulic oil flowing out from the second oil outlet reaches the inside of the rodless chamber 202 through the second oil path 700. The safety relief valve 404 can ensure that the pressure of the hydraulic pump 300 is not too high, thereby effectively protecting the whole system.
Further, the utility model discloses an in the embodiment, provide an underground shovel car, this underground shovel car includes the scraper bowl, still disposes the utility model provides an underground shovel fortune quick-witted bucket control system. When the underground scraper car is actually used for leveling the roadway, the floating function of the scraper bucket can be opened or closed according to the requirement, so that the scraper car has better applicability, the cost can be reduced, and the efficiency is improved.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (8)
1. An underground scraper bucket control system comprising a hydraulic tank (100), characterized in that: also comprises the following steps of (1) preparing,
the dumping oil cylinder (200), the dumping oil cylinder (200) comprises a rodless cavity (202) and a rod cavity (201) and is used for driving the bucket to move up and down;
an oil inlet of the hydraulic pump (300) is communicated with the hydraulic oil tank (100), and an oil outlet of the hydraulic pump (300) is communicated with the reversing valve (400);
the reversing valve (400) is provided with a first oil port (401) and a second oil port (402), the first oil port (401) is connected with the rod cavity (201) through a first oil way (600), and the second oil port (402) is connected with the rodless cavity (202) through a second oil way (700); and the number of the first and second groups,
the functional valve (500) is arranged on the first oil path (600) and the second oil path (700), the functional valve (500) comprises a one-way valve (501) and an electromagnetic valve (502), the electromagnetic valve (502) is connected with the one-way valve (501) and is configured to control the opening and closing of the one-way valve (501), and the one-way valve (501) is communicated with the first oil path (600), the second oil path (700) and the hydraulic oil tank (100).
2. The underground scraper bucket control system of claim 1, wherein: the check valve (501) comprises a first hydraulic control check valve (501 a), one end of the first hydraulic control check valve (501 a) is connected with the first oil way (600), the other end of the first hydraulic control check valve (501 a) is connected with the hydraulic oil tank (100), and the electromagnetic valve (502) controls the first hydraulic control check valve (501 a) to be opened and closed.
3. The underground scraper bucket control system of claim 2, wherein: the check valve (501) further comprises a second hydraulic control check valve (501 b), one end of the second hydraulic control check valve (501 b) is connected with the second oil way (700), the other end of the second hydraulic control check valve (501 b) is connected with the hydraulic oil tank (100), and the electromagnetic valve (502) controls the first hydraulic control check valve (501 a) and the second hydraulic control check valve (501 b) to be opened and closed simultaneously.
4. The underground scraper bucket control system of any one of claims 1 to 3, wherein: the function valve (500) further comprises a shuttle valve (503), two oil inlets of the shuttle valve (503) are respectively communicated with the first oil path (600) and the second oil path (700), and an outlet of the shuttle valve (503) is communicated with an oil inlet of the electromagnetic valve (502).
5. The underground scraper bucket control system of claim 4, wherein: the opening and closing of the electromagnetic valve (502) is controlled by an electronic switch which is arranged in a cab.
6. The underground scraper bucket control system of claim 1, wherein: the reversing valve (400) comprises a hydraulic control reversing valve (403), an oil inlet of the hydraulic control reversing valve (403) is communicated with an oil outlet of the hydraulic pump (300), a first oil outlet of the hydraulic control reversing valve (403) is communicated with a first oil way (600), and a second oil outlet of the hydraulic control reversing valve (403) is communicated with a second oil way (700).
7. The underground scraper bucket control system of claim 6, wherein: and a safety overflow valve (404) is further arranged in the reversing valve (400), and the safety overflow valve (404) is used for discharging redundant hydraulic oil in the loop to the hydraulic oil tank (100).
8. An underground carrying scraper comprising the bucket control system of an underground carrying scraper as claimed in any one of claims 1 to 7, characterized in that: the automatic dumping device further comprises a bucket, and the bucket is driven by the dumping oil cylinder (200) to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223094538.2U CN218717813U (en) | 2022-11-21 | 2022-11-21 | Underground scraper bucket control system and underground scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223094538.2U CN218717813U (en) | 2022-11-21 | 2022-11-21 | Underground scraper bucket control system and underground scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218717813U true CN218717813U (en) | 2023-03-24 |
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ID=85622330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223094538.2U Active CN218717813U (en) | 2022-11-21 | 2022-11-21 | Underground scraper bucket control system and underground scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218717813U (en) |
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- 2022-11-21 CN CN202223094538.2U patent/CN218717813U/en active Active
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