CN214698555U - Remote walking hydraulic system and walking power station of electric drilling machine - Google Patents
Remote walking hydraulic system and walking power station of electric drilling machine Download PDFInfo
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- CN214698555U CN214698555U CN202120943187.4U CN202120943187U CN214698555U CN 214698555 U CN214698555 U CN 214698555U CN 202120943187 U CN202120943187 U CN 202120943187U CN 214698555 U CN214698555 U CN 214698555U
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Abstract
The utility model discloses an electric drill's remote walking hydraulic system and walking power station belongs to the engineering machine tool field. The hydraulic power system comprises a first hydraulic pump, a second hydraulic pump, a first hot oil shuttle valve, a second hot oil shuttle valve, a first flushing overflow valve, a second flushing overflow valve and an oil tank; the hydraulic actuating mechanism comprises a first walking motor, a second walking motor, a first logic valve bank and a second logic valve bank; the first hydraulic pump is connected with the first walking motor, and the second hydraulic pump is connected with the second walking motor; the first logic valve group is connected with the first walking motor, and the second logic valve group is connected with the second walking motor. The utility model discloses can be when electric drill remote walking, for electric drill provides power, consequently can not shut down because of high tension cable length is not enough to improve electric drill's efficiency, reduced danger, labour saving and time saving.
Description
Technical Field
The utility model belongs to the engineering machine tool field, concretely relates to electric drill's remote walking hydraulic system and walking power station.
Background
The roller cone drilling machine is generally applied to blast hole drilling operation of large-scale strip mines. The existing roller-bit drilling machine can be divided into two major categories according to the power source: diesel-driven drilling machines driven by diesel engines, electric drilling machines driven by electric motors. In consideration of energy conservation, emission reduction, noise reduction and the like, the electric drilling machine is increasingly applied to large-scale strip mines.
The electric drill is powered by high voltage electricity of six kilovolts or more. In order to provide high voltage electricity to an electric drill at a mine site, a large number of high voltage poles and high voltage electrical interfaces need to be laid along the various levels of drilling platforms around the mine pit. When the electric drilling machine works on a drilling platform, the high-voltage cable at the tail part is connected with the high-voltage electric interface on the high-voltage telegraph pole, and when the electric drilling machine needs to be transferred to the next platform for working or other long-distance transfer requirements, the electric drilling machine needs to travel remotely. On the way of walking, when high tension cable's length was used up, need shut down, wait for high tension electricity operation personnel to follow high tension electricity interface disconnection with high tension cable, drag high tension cable to next high tension electricity interface again and connect. Then, the drilling machine is started again to walk, and the operations are repeated until the drilling machine moves to the specified position.
When the electric drilling machine is transferred in a long distance, the high-voltage cable on the drilling machine is limited in length, and the electric drilling machine needs to be stopped and reconnected with the high-voltage electric interface after running for a period of time, so that the electric drilling machine is stopped when the electric drilling machine runs, and the efficiency is very low; meanwhile, the danger of frequently disconnecting and connecting the high-voltage electric interface is extremely high; in addition, high tension cable weight is big, when shifting high voltage electric interface, needs the manual work to move, wastes time and energy.
SUMMERY OF THE UTILITY MODEL
The technical problem is as follows: the problem to electric drill when remote transfer faces, the utility model provides an electric drill's remote walking hydraulic system and walking power station to can improve walking efficiency, reduce danger, and reduce the manpower.
The technical scheme is as follows: on one hand, the utility model provides a remote walking hydraulic system of electric drill, including the hydraulic power system who sets up on walking power station and the hydraulic actuator who sets up on electric drill, hydraulic power system is connected with hydraulic actuator, provides power for hydraulic actuator through hydraulic power system;
the hydraulic power system comprises a first hydraulic pump, a second hydraulic pump, a first hot oil shuttle valve, a second hot oil shuttle valve, a first flushing overflow valve, a second flushing overflow valve and an oil tank, wherein the first hydraulic pump is connected with the first hot oil shuttle valve, and the first hot oil shuttle valve is connected with the oil tank through the first flushing overflow valve; the second hydraulic pump is connected with a second hot oil shuttle valve, and the second hot oil shuttle valve is connected with the oil tank through a second flushing overflow valve;
the hydraulic actuating mechanism comprises a first walking motor, a second walking motor, a first logic valve bank and a second logic valve bank;
the first hydraulic pump is connected with the first walking motor, and the second hydraulic pump is connected with the second walking motor; the first logic valve group is connected with the first walking motor and used for cutting off the connection between the first walking motor and a hydraulic pump of the electric drilling machine when the walking power station provides walking power for the electric drilling machine;
and the second logic valve group is connected with the second walking motor and used for cutting off the connection between the second walking motor and the hydraulic pump of the electric drilling machine when walking power is provided for the electric drilling machine through the power station.
Furthermore, the first hydraulic pump and the second hydraulic pump are both closed hydraulic pumps, wherein the first hydraulic pump comprises a first main pump and a first auxiliary pump for supplementing oil to the first main pump, an port A of the first main pump is connected with a port A of a first traveling motor, a port B of the first main pump is connected with a port B of the first traveling motor, a port S of the first auxiliary pump is connected with an oil tank, and a port P of the first auxiliary pump is respectively connected with the first main pump and the first logic valve group;
the second hydraulic pump comprises a second main pump and a second auxiliary pump for supplementing oil for the second main pump, an A port of the second main pump is connected with an A port of the second walking motor, a B port of the second main pump is connected with a B port of the second walking motor, an S port of the second auxiliary pump is connected with an oil tank, and a P port of the second auxiliary pump is connected with the second main pump.
Furthermore, the first auxiliary pump is respectively connected with the first logic valve bank, the second logic valve bank, the first walking motor and the second walking motor through a control valve bank.
The control valve group comprises a logic switching electromagnetic valve, a braking unlocking electromagnetic valve and a double-speed control electromagnetic valve, wherein the logic switching electromagnetic valve is respectively connected with the first logic valve group and the second logic valve group and is used for controlling the two logic valve groups to carry out logic control; the braking unlocking electromagnetic valve and the double-speed control electromagnetic valve are connected with the first walking motor and the second walking motor and are respectively used for controlling the braking and the speed of the two walking motors.
Further, a pressure reducing valve is arranged between the first auxiliary pump and the control valve group.
Further, a one-way valve is arranged between the pressure reducing valve and the control valve group.
Furthermore, the hydraulic power system and the hydraulic actuating mechanism are connected through a connecting piece, and quick connection of the hydraulic power system and the hydraulic actuating mechanism is achieved.
Further, the first logic valve group and the second logic valve group comprise a plurality of logic valves.
On the other hand, the utility model provides a walking power station, this walking power station include electric drill's remote walking hydraulic system.
Has the advantages that: utilize the embodiment of the utility model provides an in hydraulic system, when electric drill needs remote walking, cut off the hydraulic power of the original hydraulic pump of electric drill through logic valves, the hydraulic power who avoids walking power station gets into the original hydraulic system of electric drill. When a hydraulic power system arranged on the walking power station is communicated with a hydraulic actuating mechanism arranged on the electric drilling machine, an engine of the walking power station is started, and then two hydraulic pumps on the walking power station send output hydraulic oil into two hydraulic motors to drive the two hydraulic motors to work, so that the electric drilling machine is driven to carry out remote transfer.
When the electric drilling machine does not need to walk remotely, hydraulic power of an original hydraulic pump of the electric drilling machine is communicated with the two walking motors and a hydraulic power system is cut off from a hydraulic actuating mechanism through the control logic valve group, at the moment, the electric drilling machine provides power for the hydraulic pump of the electric drilling machine by depending on original high-voltage electricity to drive the walking motors to work, and therefore the electric drilling machine is driven to move.
When the electric drilling machine is in long-distance walking, the walking power station can continuously provide power for the electric drilling machine, so that the high-voltage cable can be retracted, the machine cannot be stopped due to insufficient length of the high-voltage cable, and the efficiency of the electric drilling machine is improved. Moreover, frequent disconnection and connection of the high-voltage cable are not needed, so that the danger is reduced; in addition, because do not need artifical the cable of moving to labour saving and time saving.
The utility model discloses not only can realize the incessant remote walking of electric drill, can also realize when the mining area has a power failure, engine trouble can not the during operation, the hydraulic pump trouble on the rig can not the during operation electric drill or the walking of diesel-driven drill.
Drawings
Fig. 1 is a block diagram of a remote walking hydraulic system of an electric drilling machine according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a remote walking hydraulic system of an electric drilling machine according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at C1;
FIG. 4 is an enlarged view of a portion of FIG. 2 at C2;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C3;
FIG. 6 is an enlarged view of a portion of FIG. 2 at C4;
FIG. 7 is an enlarged view of a portion of FIG. 2 at C5;
the figure shows that: 1. a first hydraulic pump; 2. a second hydraulic pump; 3. a first hot oil shuttle valve; 4. a second hot oil shuttle valve; 5. a first flushing overflow valve; 6. a second flushing relief valve; 7. an oil tank; 8. a first travel motor; 9. a second travel motor; 10. a first logic valve bank; 11. a second logic valve bank; 12. a first main pump; 13. a first auxiliary pump; 14. a second main pump; 15. a second auxiliary pump; 16. a control valve group; 17. logically switching the electromagnetic valve; 18. a brake unlocking solenoid valve; 19. a double-speed control electromagnetic valve; 20. a pressure reducing valve; 21. a one-way valve; 22. a connecting member.
Detailed Description
The invention is further described with reference to the following examples and the accompanying drawings. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Also, the terms "first", "second", etc. are for convenience of description only and are not to be construed as limiting in number, etc., and the term "connected" is defined broadly, and may mean "mechanically connected" as well as "electrically connected", etc.
Fig. 1 shows the utility model discloses a structural block diagram of an embodiment of electric drill's remote walking hydraulic system combines fig. 1, the utility model discloses a system is including setting up hydraulic power system on walking power station and the hydraulic actuator who sets up on electric drill, and hydraulic power system is connected with hydraulic actuator, provides power for hydraulic actuator through hydraulic power system to when electric drill remote shift, can walk in succession. The hydraulic power system comprises a first hydraulic pump 1, a second hydraulic pump 2, a first hot oil shuttle valve 3, a second hot oil shuttle valve 4, a first flushing overflow valve 5, a second flushing overflow valve 6 and an oil tank 7, wherein the first hydraulic pump 1 is connected with the first hot oil shuttle valve 3, and the first hot oil shuttle valve 3 is connected with the oil tank 7 through the first flushing overflow valve 5; the second hydraulic pump 2 is connected with a second hot oil shuttle valve 4, and the second hot oil shuttle valve 4 is connected with an oil tank 7 through a second flushing overflow valve 6.
The hydraulic actuating mechanism includes first walking motor 8, second walking motor 9, first logic valves 10 and second logic valves 11, wherein, in the embodiment of the utility model, first walking motor 8 is the left side walking motor of electric drill, and second walking motor 9 is the right side walking motor of electric drill. The first hydraulic pump 1 is connected with a first walking motor 8, and the second hydraulic pump 2 is connected with a second walking motor 9; the first logic valve group 10 is connected with the first walking motor 8 and used for cutting off the connection between the first walking motor 8 and a hydraulic pump of the electric drilling machine when the walking power station provides walking power for the electric drilling machine; the second logic valve group 11 is connected with the second walking motor 9 and used for cutting off the connection between the second walking motor 9 and a hydraulic pump of the electric drilling machine when walking power is provided for the electric drilling machine through the power station.
Wherein, set up hot oil shuttle valve and wash the overflow valve, can cool off the hydraulic pump.
Utilize the embodiment of the utility model provides an in hydraulic system, when electric drill needs remote walking, cut off the hydraulic power of the original hydraulic pump of electric drill through logic valves, the hydraulic power who avoids walking power station gets into the original hydraulic system of electric drill. When a hydraulic power system arranged on the walking power station is communicated with a hydraulic actuating mechanism arranged on the electric drilling machine, an engine of the walking power station is started, and then two hydraulic pumps on the walking power station send output hydraulic oil into two hydraulic motors to drive the two hydraulic motors to work, so that the electric drilling machine is driven to carry out remote transfer.
When the electric drilling machine does not need to walk remotely, hydraulic power of an original hydraulic pump of the electric drilling machine is communicated with the two walking motors and a hydraulic power system is cut off from a hydraulic actuating mechanism through the control logic valve group, at the moment, the electric drilling machine provides power for the hydraulic pump of the electric drilling machine by depending on original high-voltage electricity to drive the walking motors to work, and therefore the electric drilling machine is driven to move.
When the electric drilling machine is in long-distance walking, the walking power station can continuously provide power for the electric drilling machine, so that the high-voltage cable can be retracted, the machine cannot be stopped due to insufficient length of the high-voltage cable, and the efficiency of the electric drilling machine is improved. Moreover, frequent disconnection and connection of the high-voltage cable are not needed, so that the danger is reduced; in addition, because do not need artifical the cable of moving to labour saving and time saving.
Furthermore, the embodiment of the utility model provides a hydraulic system who provides not only can realize the incessant remote walking of electric drill, can also realize when the mining area has a power failure, engine trouble can not the during operation, the hydraulic pump trouble on the rig can not the during operation electric drill or the walking of firewood movable drill.
Fig. 2 shows a detailed schematic diagram of an embodiment of the remote walking hydraulic system of the electric drilling machine of the present invention. As shown in fig. 2-7, in the embodiment of the present invention, the first hydraulic pump 1 and the second hydraulic pump 2 are closed hydraulic pumps, therefore, in the embodiment of the present invention, the remote walking hydraulic system of the electric drilling machine is a closed hydraulic system, and to the closed hydraulic system, hydraulic oil can flow in the system through circulation, and does not need to enter the oil tank, not only pressure loss is small, impact is small, but also noise and volume are relatively small.
The first hydraulic pump 1 includes a first main pump 12 and a first auxiliary pump 13 for supplying oil to the first main pump 12, an a port of the first main pump 12 is connected to an a port of the first traveling motor 8, a B port of the first main pump 12 is connected to a B port of the first traveling motor 8, an S port of the first auxiliary pump 13 is connected to the oil tank 7, and a P port of the first auxiliary pump 13 is connected to the first main pump 12 and the first logic valve group 10, respectively.
The second hydraulic pump 2 comprises a second main pump 14 and a second auxiliary pump 15 for supplementing oil for the second main pump 14, an A port of the second main pump 14 is connected with an A port of the second walking motor 9, a B port of the second main pump 14 is connected with a B port of the second walking motor 9, an S port of the second auxiliary pump 15 is connected with the oil tank 7, and a P port of the second auxiliary pump 15 is connected with the second main pump 14.
The utility model discloses an in the embodiment, through set up a diesel engine on walking power station, drive first hydraulic pump 1 and the work of second hydraulic pump 2.
In order to control the traveling motor, in the embodiment of the present invention, the first auxiliary pump 13 is connected to the first logic valve set 10, the second logic valve set 11, the first traveling motor 8 and the second traveling motor 9 through the control valve set 16.
The control valve group 16 comprises a logic switching solenoid valve 17, a braking unlocking solenoid valve 18 and a double-speed control solenoid valve 19, wherein the logic switching solenoid valve 17 is respectively connected with the first logic valve group 10 and the second logic valve group 11, and specifically, the logic switching solenoid valve 17 is respectively connected with a K port of the first logic valve group 10 and a K port of the second logic valve group 11 and is used for controlling the two logic valve groups to carry out logic control, so that when the electric drilling machine needs to walk remotely, the logic valve groups can be controlled, the hydraulic power of the original hydraulic pump of the electric drilling machine is cut off, and the hydraulic power of a walking power station is prevented from entering the original hydraulic system of the electric drilling machine.
The braking and unlocking solenoid valve 18 and the two-speed control solenoid valve 19 are connected with the first traveling motor 8 and the second traveling motor 9 and are respectively used for controlling braking and speed of the two traveling motors, and specifically, the braking and unlocking solenoid valve 18 is respectively connected with a BR port of the first traveling motor 8 and a BR port of the second traveling motor 9.
In the embodiment of the present invention, the first logic valve group 10 and the second logic valve group 11 both include a plurality of logic valves, for example, in fig. 6-7, the first logic valve group 10 has the same structure as the second logic valve group 11, and now the first logic valve group 10 is taken as an example for description, as shown in fig. 6, the first logic valve group 10 includes 5 logic valves, and the logic switching solenoid valve 17 is respectively connected with five logic valves, so as to uniformly control the five logic valves. And the brake unlocking solenoid valve 18 and the two-speed control solenoid valve 19 are directly connected with the hydraulic motor, so that the braking and two-speed control can be carried out on the hydraulic motor.
Further, as shown in fig. 2, a pressure reducing valve 20 is arranged between the first auxiliary pump 13 and the control valve group 16, and when the pressure of the oil outlet of the first auxiliary pump 13 exceeds the rated pressure of the pressure reducing valve 20, hydraulic oil can enter the oil tank 7, so that the first auxiliary pump 13 is prevented from being damaged.
Further, as shown in fig. 2, a check valve 21 is provided between the pressure reducing valve 20 and the control valve block 16 to prevent high-pressure oil from flowing back into the first auxiliary pump 13 and damaging the first auxiliary pump 13.
The embodiment of the utility model provides an in, hydraulic power system and hydraulic actuator adopt connecting piece 22 to connect, are provided with a plurality of interface channel on the connecting piece 22 for hydraulic line high-speed joint's part, thereby make things convenient for hydraulic power system and hydraulic actuator's high-speed joint and disconnection, connecting element when specifically can adopting current hydraulic system to connect.
Furthermore, the utility model discloses not only provide an electric drill's remote walking hydraulic system, provide a walking power station simultaneously, walking power station includes foretell electric drill's remote walking hydraulic system. By utilizing the provided walking power station, when the electric drilling machine needs to walk for a long distance, the walking power station provides power for the electric drilling machine, so that the problems that the electric drilling machine stops and stops due to insufficient length of a high-voltage cable are avoided, and the efficiency is reduced; meanwhile, the danger caused by frequent disconnection of the high-voltage cable is reduced, and the labor can be saved.
The present invention has been described in detail so far. Some details which are well known in the art have not been described in order to avoid obscuring the concepts of the present invention. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (9)
1. The remote walking hydraulic system of the electric drilling machine is characterized by comprising a hydraulic power system arranged on a walking power station and a hydraulic execution mechanism arranged on the electric drilling machine, wherein the hydraulic power system is connected with the hydraulic execution mechanism and provides power for the hydraulic execution mechanism through the hydraulic power system;
the hydraulic power system comprises a first hydraulic pump (1), a second hydraulic pump (2), a first hot oil shuttle valve (3), a second hot oil shuttle valve (4), a first flushing overflow valve (5), a second flushing overflow valve (6) and an oil tank (7), wherein the first hydraulic pump (1) is connected with the first hot oil shuttle valve (3), and the first hot oil shuttle valve (3) is connected with the oil tank (7) through the first flushing overflow valve (5); the second hydraulic pump (2) is connected with a second hot oil shuttle valve (4), and the second hot oil shuttle valve (4) is connected with an oil tank (7) through a second flushing overflow valve (6);
the hydraulic actuating mechanism comprises a first walking motor (8), a second walking motor (9), a first logic valve group (10) and a second logic valve group (11);
the first hydraulic pump (1) is connected with a first walking motor (8), and the second hydraulic pump (2) is connected with a second walking motor (9); the first logic valve group (10) is connected with the first walking motor (8) and used for cutting off the connection between the first walking motor (8) and a hydraulic pump of the electric drilling machine when the walking power station provides walking power for the electric drilling machine;
the second logic valve group (11) is connected with the second walking motor (9) and used for cutting off the connection between the second walking motor (9) and a hydraulic pump of the electric drilling machine when walking power is provided for the electric drilling machine through the power station.
2. The system according to claim 1, characterized in that the first hydraulic pump (1) and the second hydraulic pump (2) are closed hydraulic pumps, wherein the first hydraulic pump (1) comprises a first main pump (12) and a first auxiliary pump (13) for replenishing oil to the first main pump (12), wherein a port a of the first main pump (12) is connected with a port a of the first traveling motor (8), a port B of the first main pump (12) is connected with a port B of the first traveling motor (8), a port S of the first auxiliary pump (13) is connected with the oil tank (7), and a port P of the first auxiliary pump (13) is connected with the first main pump (12) and the first logic valve group (10), respectively;
the second hydraulic pump (2) comprises a second main pump (14) and a second auxiliary pump (15) for supplementing oil for the second main pump (14), an A port of the second main pump (14) is connected with an A port of a second walking motor (9), a B port of the second main pump (14) is connected with a B port of the second walking motor (9), an S port of the second auxiliary pump (15) is connected with an oil tank (7), and a P port of the second auxiliary pump (15) is connected with the second main pump (14).
3. System according to claim 2, characterized in that the first auxiliary pump (13) is connected to a first logic valve group (10), a second logic valve group (11), a first travel motor (8) and a second travel motor (9) respectively, through a control valve group (16).
4. The system according to claim 3, characterized in that the control valve group (16) comprises a logic switching solenoid valve (17), a brake unlocking solenoid valve (18) and a two-speed control solenoid valve (19), wherein the logic switching solenoid valve (17) is respectively connected with the first logic valve group (10) and the second logic valve group (11) for controlling the two logic valve groups to perform logic control; the braking unlocking electromagnetic valve (18) and the double-speed control electromagnetic valve (19) are connected with the first walking motor (8) and the second walking motor (9) and are respectively used for controlling the braking and the speed of the two walking motors.
5. A system according to claim 3, characterized in that a pressure reducing valve (20) is arranged between the first auxiliary pump (13) and the control valve block (16).
6. System according to claim 5, characterized in that a non-return valve (21) is arranged between the pressure reducing valve (20) and the control valve block (16).
7. The system according to any one of claims 1-6, wherein the hydraulic power system and the hydraulic actuator are connected by a connecting member (22) for quick connection therebetween.
8. System according to claim 7, characterized in that the first and second logic valve groups (10, 11) each comprise several logic valves.
9. A walking power station characterized by comprising a long-distance walking hydraulic system of an electric drilling machine according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120943187.4U CN214698555U (en) | 2021-04-30 | 2021-04-30 | Remote walking hydraulic system and walking power station of electric drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120943187.4U CN214698555U (en) | 2021-04-30 | 2021-04-30 | Remote walking hydraulic system and walking power station of electric drilling machine |
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| Publication Number | Publication Date |
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| CN214698555U true CN214698555U (en) | 2021-11-12 |
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| CN202120943187.4U Active CN214698555U (en) | 2021-04-30 | 2021-04-30 | Remote walking hydraulic system and walking power station of electric drilling machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN214698555U (en) |
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2021
- 2021-04-30 CN CN202120943187.4U patent/CN214698555U/en active Active
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