Rock drilling machine and double-fuel-tank device thereof

Abstract

The utility model discloses a rock drilling machine and a double-fuel-tank device thereof, and belongs to the technical field of engineering machinery. The double-fuel-tank device comprises a main fuel tank and an auxiliary fuel tank, the main fuel tank comprises a first shell and a first fuel injection pipe, the auxiliary fuel tank comprises a second shell and a second fuel injection pipe, the first shell and the second shell each comprise a containing space, the first fuel injection pipe stretches into the first shell, and the second fuel injection pipe stretches into the second shell. The auxiliary oil tank is arranged on one side of the main oil tank, the first oil filler pipe is arranged on one side of the second oil filler pipe, and the axis of the first oil filler pipe is approximately parallel to that of the second oil filler pipe. The main fuel tank and the auxiliary fuel tank are combined into a whole to be welded together, the problem that space layout is difficult due to the fact that the auxiliary fuel tank is additionally arranged can be solved, meanwhile, filling ports of the main fuel tank and the auxiliary fuel tank are placed together and marked according to different fuel mark numbers, and a user can conveniently fill fuel oil of different mark numbers.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, and more specifically to a rock drilling rig and a double fuel tank device thereof. Background Art

[0002] A rock drill is a type of engineering machinery. According to engineering requirements, the rock drill needs to work in some extremely cold areas such as high latitudes or plateaus all year round. Its working conditions are usually harsh. In order to make it have good cold start performance, the current mainstream rock drills all use low-grade diesel (such as -35# diesel) as power in a low temperature environment. However, such low-grade diesel is usually expensive. The prior art sets two fuel tanks on the drilling rig, and adds a small fuel tank device to the whole vehicle as an auxiliary fuel tank. The auxiliary fuel tank is used to place low-grade diesel (such as -35# diesel), and the main fuel tank is used to place high-grade diesel (such as 0# diesel). The low-grade diesel (such as -35# diesel) is mainly used for cold start, and the high-grade diesel (such as 0# diesel) is used for long-term operation.

[0003] However, dual fuel tanks will cause certain difficulties in spatial layout, which is not conducive to the maintenance of the fuel tanks and the layout of other components. In addition, the auxiliary fuel tank must be connected to the main fuel tank to maximize the utilization of the fuel tank volume in non-low temperature environments and save the frequency of fuel refueling. This is difficult to take into account with a single auxiliary fuel tank. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a rock drilling rig and a dual fuel tank device thereof. By combining a main fuel tank and an auxiliary fuel tank into one and welding them together as a whole, the spatial layout difficulties caused by adding an auxiliary fuel tank can be reduced. At the same time, the filling ports of the main and auxiliary fuel tanks are placed together and marked according to different fuel grades, which is convenient for users to fill fuel of different grades.

[0006] 2. Technical solution

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0008] The utility model discloses a dual fuel tank device, comprising a main fuel tank and a subsidiary fuel tank, wherein the main fuel tank comprises a first outer shell and a first fuel filling pipe, and the subsidiary fuel tank comprises a second outer shell and a second fuel filling pipe, wherein the first outer shell and the second outer shell both comprise a containing space, the first fuel filling pipe extends into the first outer shell, and the second fuel filling pipe extends into the second outer shell, the subsidiary fuel tank is arranged at one side of the main fuel tank, the first fuel filling pipe is arranged at one side of the second fuel filling pipe, and the axes of the first fuel filling pipe and the second fuel filling pipe are substantially parallel.

[0009] As a further improvement of the utility model, a connecting pipe is provided between the main oil tank and the auxiliary oil tank, and a connecting valve is provided in the connecting pipe.

[0010] As a further improvement of the present invention, the first shell and the second shell are connected by welding.

[0011] As a further improvement of the present invention, the diameter of the first oil injection pipe is greater than the diameter of the second oil injection pipe.

[0012] As a further improvement of the utility model, it also includes a heating device, which is arranged inside the main oil tank, and the liquid inlet and liquid outlet of the heating device are respectively connected to the liquid outlet and liquid inlet of the engine coolant.

[0013] As a further improvement of the present invention, the heating device extends from one side of the first shell into the accommodating space of the main oil tank.

[0014] As a further improvement of the present invention, the heating device is arranged at the bottom of the main oil tank.

[0015] As a further improvement of the utility model, the main oil tank is also provided with an oil inlet and return pipeline, and the heating device is close to the oil inlet and return pipeline.

[0016] As a further improvement of the utility model, the main oil tank is further provided with an oil inlet and return pipe, and the oil inlet and return pipe is in contact with the heating device.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0019] (1) The main fuel tank and the auxiliary fuel tank of the utility model are combined into one and welded together as a whole fuel tank, which can reduce the difficulty of space layout caused by adding auxiliary fuel tanks.

[0020] (2) The utility model makes it more convenient to connect the main and auxiliary fuel tanks. The main fuel tank and the auxiliary fuel tank are connected by a ball valve and a connecting pipe, so as to maximize the utilization rate of the fuel tank volume in a non-low temperature environment and save the frequency of fuel filling.

[0021] (3) The heating device of the utility model is installed at the bottom of the main fuel tank and near the diesel supply and return pipe openings, so that the diesel in the supply and return pipes and near the oil suction port of the supply pipe can be heated first, so that the whole machine can enter the normal working mode earlier, reducing the consumption of low-grade diesel. The bottom layout is more convenient for disassembly, maintenance and layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of a dual fuel tank device according to an embodiment of the present application;

[0023] Figure 2 A top view of a dual fuel tank device according to an embodiment of the present application;

[0024] Explanation of the symbols in the schematic diagram:

[0025] 100, main oil tank; 110, first housing; 120, first oil filling pipe; 130, oil inlet and return pipes;

[0026] 200, auxiliary oil tank; 210, second outer shell; 220, second oil filling pipe;

[0027] 300, connecting pipe; 310, connecting valve;

[0028] 400. Heating device. DETAILED DESCRIPTION

[0029] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the drawings and embodiments.

[0030] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of implementation. The change or adjustment of their relative relationship should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0031] Combination Figure 1 and Figure 2 A dual fuel tank device of the present embodiment includes a main fuel tank 100 and a subsidiary fuel tank 200, wherein the main fuel tank 100 includes a first shell 110 and a first fuel filling pipe 120, and the subsidiary fuel tank 200 includes a second shell 210 and a second fuel filling pipe 220, wherein the first shell 110 and the second shell 210 both include a containing space, the first fuel filling pipe 120 extends into the first shell 110, and the second fuel filling pipe 220 extends into the second shell 210, and the subsidiary fuel tank 200 is arranged at one side of the main fuel tank 100, and the first fuel filling pipe 120 is arranged at one side of the second fuel filling pipe 220, and the axes of the first fuel filling pipe 120 and the second fuel filling pipe 220 are substantially parallel.

[0032] Specifically, the main fuel tank 100 includes a first shell 110 and a storage space surrounded by the first shell 110, in which fuel can be stored, and a first fuel filling pipe 120 is provided on one side of the first shell 110, the first fuel filling pipe 120 connects the storage space with the outside of the first shell 110, and fuel can be filled into the main fuel tank 100. The auxiliary fuel tank 200 includes a second shell 210 and a storage space surrounded by the second shell 210, in which fuel can be stored, and a second fuel filling pipe 220 is provided on one side of the second shell 210, the second fuel filling pipe 220 connects the storage space with the outside of the second shell 210, and fuel can be filled into the auxiliary fuel tank 200.

[0033] More specifically, the first oil filling pipe 120 and the second oil filling pipe 220 are close to each other, and the axes of the first oil filling pipe 120 and the second oil filling pipe 220 are roughly parallel. When the ambient temperature is higher than the set threshold temperature T3, it is regarded as a non-low temperature environment. T3 is an artificially set temperature, which needs to be set according to the altitude and temperature of the rock drilling rig during actual operation. When the ambient temperature is higher than T3, the main tank 100 and the auxiliary tank 200 are both filled with the same grade of fuel. When the ambient temperature is lower than the set threshold temperature T3, it is regarded as a low temperature environment. At this time, it is necessary to fill the main tank 100 with high-grade fuel and the auxiliary tank 200 with low-grade fuel. The volumes of the main tank 100 and the auxiliary tank 200 can be configured differently according to the fuel consumption of the rock drilling rig.

[0034] The fuel filling ports of the main fuel tank 100 and the auxiliary fuel tank 200 are placed together and marked according to different fuel grades, which makes it convenient for users to fill fuel and reduces the difficulty of fuel filling.

[0035] More specifically, in a low-temperature environment, the auxiliary fuel tank 200 is filled with low-grade high-priced diesel, and the low-temperature diesel is used during the start-up of the drilling rig, the heating stage of the main fuel tank 100, and the shutdown stage. This can ensure that in a low-temperature environment, the fuel pipeline, fuel filter, engine fuel pump, fuel nozzle and other parts are all fuel that is adapted to the low-temperature environment, and each time the rock drilling rig is shut down and subsequently started, it can be ensured that the oil quality meets the startup requirements.

[0036] In a specific embodiment, a connecting pipe 300 is provided between the main fuel tank 100 and the auxiliary fuel tank 200, and a connecting valve 310 is provided in the connecting pipe 300. Specifically, the connecting valve 310 is a ball valve. When the ambient temperature is higher than the set threshold temperature T3, the main fuel tank 100 and the auxiliary fuel tank 200 are both injected with fuel of the same grade. At this time, the connecting valve 310 is opened to enable fuel exchange between the main fuel tank 100 and the auxiliary fuel tank 200. The main fuel tank 100 and the auxiliary fuel tank 200 can be regarded as a large fuel tank to supply fuel to the engine device. The main fuel tank 100 and the auxiliary fuel tank 200 are connected through the ball valve and the connecting pipe 300, so as to maximize the utilization rate of the fuel tank volume in a non-low temperature environment and save the frequency of fuel filling.

[0037] In a specific embodiment, the first shell 110 and the second shell 210 are connected by welding. Specifically, a notch is provided on one side of the first shell 110 so that the second shell 210 can be exactly enclosed in the notch, that is, the auxiliary oil tank 200 and the main oil tank 100 are combined to form an integral oil tank, which effectively reduces the spatial layout difficulties caused by adding the auxiliary oil tank 200.

[0038] The diameter of the first filling pipe 120 is greater than that of the second filling pipe 220. The first filling pipe 120 is used to fill the main tank 100 with fuel, and the second filling pipe 220 is used to fill the auxiliary tank 200 with fuel. Since the volume of the main tank 100 is greater than that of the auxiliary tank 200, during the process of filling fuel, the diameter of the first filling pipe 120 is greater than the diameter of the second filling pipe 220. This can ensure the fuel filling speed while distinguishing the filling ports of the main tank 100 and the auxiliary tank 200, thereby preventing the operator from confusing the main tank 100 and the auxiliary tank 200 during the process of filling fuel.

[0039] In a specific embodiment, the dual fuel tank device further includes a heating device 400, which is disposed inside the main fuel tank 100, and the liquid inlet and the liquid outlet of the heating device 400 are respectively connected to the liquid outlet and the liquid inlet of the engine coolant. The heating device 400 extends from one side of the first housing 110 into the accommodation space of the main fuel tank 100.

[0040] Specifically, the coolant of the engine device is connected to the heating device 400 disposed inside the main fuel tank 100 through a pipeline. One end of the heating device 400 extends into the main fuel tank 100. The inside of the pipeline of the heating device 400 allows the coolant to flow through without contacting the fuel in the main fuel tank 100. The coolant inside the pipeline exchanges heat with the fuel in the main fuel tank 100 to achieve the purpose of heating the fuel in the main fuel tank 100.

[0041] The coolant of the engine device is connected to the inside of the main fuel tank 100 through a pipeline. A heater on-off valve is provided in the coolant pipeline. When the heater on-off valve is in an open state, the coolant of the engine device can enter the interior of the heating device 400 to realize heat exchange with the fuel in the main fuel tank 100. When the heater on-off valve is in a closed state, the engine coolant cannot enter the interior of the heating device 400, and it circulates through another branch pipe for cooling.

[0042] The heating device 400 of the main fuel tank 100 is a multi-channel stainless steel pipe group. By rationally utilizing the waste heat of the engine, the heating source adopts the coolant heated after the engine is started. According to the different heating amounts, the heating device 400 can select different power configurations. At the same time, the heating power can also be optimized by adjusting the number of heating devices 400.

[0043] In a specific embodiment, the heating device 400 is arranged at the bottom of the main oil tank 100, and the main oil tank 100 is also provided with an oil inlet and return pipe 130, and the heating device 400 is close to the oil inlet and return pipe 130. When the ambient temperature is not a low temperature environment, the heating device 400 is installed at the bottom of the main oil tank 100 and near the diesel oil supply and return pipe opening, so that the diesel in the oil inlet and return pipe 130 and near the oil supply pipe suction port can be heated first, so that the rock drilling vehicle can enter the normal working mode earlier, reduce the consumption of low-grade diesel, and the bottom arrangement is also more convenient for disassembly, assembly, maintenance and arrangement.

[0044] In a specific embodiment, the heating device 400 is disposed at the bottom of the main oil tank 100. The main oil tank 100 is also provided with an oil inlet and return pipe 130, and the oil inlet and return pipe 130 is in contact with the heating device 400. In a low temperature environment, the fuel inlet and return pipe 130 of the main oil tank 100 is to be wound or bundled with the pipeline of the heating device 400, and a heat-insulating jacket is added to further heat and insulate the fuel in the oil pipe of the main oil tank 100, so as to prevent the fuel in the oil pipe from waxing due to the low temperature, thereby affecting the normal operation of the rock drilling vehicle.

[0045] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A dual fuel tank device, characterized in that: The invention comprises a main oil tank (100) and an auxiliary oil tank (200), wherein the main oil tank (100) comprises a first outer shell (110) and a first oil filling pipe (120), and the auxiliary oil tank (200) comprises a second outer shell (210) and a second oil filling pipe (220), wherein the first outer shell (110) and the second outer shell (210) both comprise a containing space, the first oil filling pipe (120) extends into the first outer shell (110), and the second oil filling pipe (220) extends into the second outer shell (210), and the auxiliary oil tank (200) is arranged at one side of the main oil tank (100), and the first oil filling pipe (120) is arranged at one side of the second oil filling pipe (220), and the axes of the first oil filling pipe (120) and the second oil filling pipe (220) are substantially parallel.

2. The dual fuel tank device according to claim 1, characterized in that: A connecting pipe (300) is provided between the main oil tank (100) and the auxiliary oil tank (200), and a connecting valve (310) is provided in the connecting pipe (300).

3. The dual fuel tank device according to claim 1 or 2, characterized in that: The first shell (110) and the second shell (210) are connected by welding.

4. The dual fuel tank device according to claim 1 or 2, characterized in that: The diameter of the first oil injection pipe (120) is greater than the diameter of the second oil injection pipe (220).

5. The dual fuel tank device according to claim 1, characterized in that: It also comprises a heating device (400), which is arranged inside the main oil tank (100), and the liquid inlet and the liquid outlet of the heating device (400) are respectively connected to the liquid outlet and the liquid inlet of the engine coolant.

6. The dual fuel tank device according to claim 5, characterized in that: The heating device (400) extends from one side of the first housing (110) into the accommodation space of the main oil tank (100).

7. The dual fuel tank device according to claim 5 or 6, characterized in that: The heating device (400) is arranged at the bottom of the main oil tank (100).

8. The dual fuel tank device according to claim 7, characterized in that: The main oil tank (100) is also provided with an oil inlet and return pipeline (130), and the heating device (400) is close to the oil inlet and return pipeline (130).

9. The dual fuel tank device according to claim 7, characterized in that: The main oil tank (100) is also provided with an oil inlet and return pipe (130), and the oil inlet and return pipe (130) is in contact with the heating device (400).

10. A rock drilling rig, characterized in that: It comprises a dual fuel tank device as claimed in any one of claims 1 to 9.

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