Oil filling device and excavator

Abstract

The present invention provides an oil filling device and an excavator, which relate to the technical field of engineering machinery. The oil filling device provided by the present invention comprises a control mechanism and an oil pump, wherein the oil pump is connected to a counterweight housing through a support assembly, an oil inlet of the oil pump is connected to an oil inlet pipe, the oil pump sucks oil from an oil barrel through the oil inlet pipe, an oil filling port of the oil pump is connected to an oil filling pipe, the oil pump fills oil into the engine through the oil filling pipe, and the control mechanism is electrically connected to the oil pump to control the start and stop of the oil pump. The invention solves the technical problem of low oil filling efficiency when the excavator changes the oil, and achieves the purpose of improving the efficiency of oil filling work.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to an oil filling device and an excavator. Background Art

[0002] As a widely used machine in the construction machinery industry, excavators require multiple oil changes during their long life cycle. Currently, oil filling is mainly done manually.

[0003] When changing the oil of medium-sized excavators and large excavators, the oil must be injected from the upper end of the excavator engine, and the injection amount is large. In the actual operation, due to the engine structure and space problems, there is no stepping device around the oil filling port, and the workers cannot find a suitable position to stand to complete the oil filling. Multiple intermittent operations are required to complete the entire oil replacement process, which makes the work efficiency low. Summary of the invention

[0004] The object of the present invention is to provide an oil filling device and an excavator, so as to alleviate the technical problem of low oil filling efficiency when changing the oil of the excavator in the related art.

[0005] In order to solve the above technical problems, the technical means adopted by the present invention are:

[0006] The present invention provides an oil filling device comprising: a control mechanism and an oil pump;

[0007] The oil pump is connected to the counterweight housing through a support assembly;

[0008] The oil inlet of the oil pump is connected to an oil inlet pipe, and the oil pump sucks oil from the oil barrel through the oil inlet pipe;

[0009] The oil filling port of the oil pump is connected to an oil filling pipe, and the oil pump fills oil into the engine through the oil filling pipe;

[0010] The control mechanism is electrically connected to the oil pump and is used to control the start and stop of the oil pump.

[0011] As a further technical solution, a liquid level sensor is provided at the end of the oil filling pipe connected to the engine, and the liquid level sensor is used to monitor the oil level in the engine;

[0012] The liquid level sensor is connected to the control mechanism by signal;

[0013] When the liquid level sensor detects that the waste oil in the engine is completely drained, the liquid level sensor sends oil-completed information to the control mechanism, and the control mechanism receives the information and sends a prompt signal to the outside world;

[0014] When the liquid level sensor detects that the oil filling level in the engine reaches a preset value, the liquid level sensor sends an oil filling completion message to the control mechanism. The control mechanism receives the message, controls the oil pump to shut down, and sends a prompt signal to the outside world.

[0015] As a further technical solution, the control mechanism includes a controller and a control terminal;

[0016] The control terminal is connected to the controller signal and is used to send an oil filling or stopping instruction to the controller;

[0017] The controller is electrically connected to the oil pump, and controls the start and stop of the oil pump according to information received from the control terminal.

[0018] As a further technical solution, the liquid level sensor is connected to the controller signal to send oil level information to the controller;

[0019] The controller receives the oil drain information and sends a prompt signal to the outside world;

[0020] The controller receives the oil filling completion information, controls the oil pump to close, and sends a prompt signal to the outside.

[0021] As a further technical solution, an oil filter device is provided at the oil suction port of the oil inlet pipe.

[0022] As a further technical solution, the oil suction port of the oil inlet pipe and the oil filling port of the oil filling pipe are both provided with dust prevention devices.

[0023] As a further technical solution, the support assembly includes a support platform and a support rib plate, and the support platform is connected to the support rib plate;

[0024] The oil pump is connected to the supporting platform;

[0025] The supporting rib is connected to the counterweight shell.

[0026] As a further technical solution, the support platform is connected to the support rib plate through bolts, and the support rib plate is connected to the counterweight shell through bolts.

[0027] As a further technical solution, the support platform is riveted to the support rib plate, and the support rib plate is welded to the counterweight shell.

[0028] An excavator provided by the present invention comprises the oil filling device.

[0029] Compared with the prior art, the oil filling device and excavator provided by the present invention have the following technical advantages:

[0030] The oil filling device provided by the present invention comprises a control mechanism and an oil pump, wherein the oil pump is connected to a counterweight housing through a supporting assembly, the oil inlet of the oil pump is connected to an oil inlet pipe, the oil pump draws oil from an oil barrel through the oil inlet pipe, the oil filling port of the oil pump is connected to an oil filling pipe, the oil pump fills oil into the engine through the oil filling pipe, and the control mechanism is electrically connected to the oil pump for controlling the start and stop of the oil pump.

[0031] The oil filling device and excavator provided by the present invention have the following advantages:

[0032] In this application, the control mechanism controls the start and stop of the oil pump. When the oil pump is started, the oil enters the engine from the oil barrel through the oil inlet pipe, the oil pump and the oil filling pipe in sequence, completing the work of filling the oil. In actual operation, the staff starts the oil pump through the control mechanism and begins to fill the engine with oil. When the oil is filled to a preset value, the oil pump is turned off by the control mechanism. The entire oil filling process is automated, which changes the current situation in the prior art where multiple manual intermittent operations are required to complete the process, and improves the work efficiency of oil filling.

[0033] The excavator provided by the present invention includes an oil filling device. Therefore, the technical advantages and effects achieved by the excavator include the technical advantages and effects achieved by the above-mentioned oil filling device, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the structure of an oil filling device provided by an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the installation structure of the oil pump of the oil filling device provided in an embodiment of the present invention.

[0037] icon:

[0038] 100 - oil pump;

[0039] 200 - support assembly; 210 - support platform; 220 - support rib plate;

[0040] 300 - counterweight housing; 400 - oil inlet pipe; 500 - oil drum; 600 - oil filling pipe; 700 - engine; 800 - liquid level sensor; 900 - controller; 1000 - oil filter device. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The oil filling device provided in this embodiment includes a control mechanism and an oil pump 100. The oil pump 100 is connected to the counterweight housing 300 through a support assembly 200. The oil inlet of the oil pump 100 is connected to an oil inlet pipe 400. The oil pump 100 sucks oil from an oil barrel 500 through the oil inlet pipe 400. The oil filling port of the oil pump 100 is connected to an oil filling pipe 600. The oil pump 100 fills oil into the engine 700 through the oil filling pipe 600. The control mechanism is electrically connected to the oil pump 100 for controlling the start and stop of the oil pump 100.

[0045] Specific, combined Figure 1 and Figure 2As shown, the support assembly 200 is connected to the counterweight housing 300, the oil pump 100 is connected to the support assembly 200 through a bolt-nut pair, and the control mechanism is electrically connected to the oil pump 100 to control the start and stop of the oil pump 100. When the oil filling device is actually working, the staff starts the oil pump 100 through the control mechanism, and the oil pump 100 starts to pump oil. The oil enters the engine 700 from the oil barrel 500 through the oil inlet pipe 400, the oil pump 100 and the oil filling pipe 600 in sequence. When the oil in the engine 700 is filled to a preset value, the oil pump 100 is closed by the control mechanism to complete the work of filling the engine 700 with oil. In the entire oil filling process, the oil filling device of this embodiment realizes automation, which changes the current situation that it can only be completed by manual multiple intermittent operations, and improves the work efficiency of oil filling.

[0046] It should be pointed out that the oil pump 100 of the present application is easy to install. The oil pump 100 can be installed by using the existing counterweight housing 300 and the support assembly 200 for supporting. It is easy to use. At the same time, the newly added components of the oil filling device use the existing excess space during installation and use, that is, the space between the counterweight housing 300 and the engine 700. There is no need to adjust the components around the engine 700 to optimize the installation position of the oil pump 100. In addition, the present application can realize automated oil filling operations, which are simple to operate. Therefore, there is no requirement for the operating experience and skills of the staff who fill the oil, and it is easy to use.

[0047] Furthermore, the installation position of the oil pump 100 is not limited to the counterweight housing 300. The oil pump 100 can be fixedly installed at any position under the premise that its installation does not affect the operation of components around the engine 700 and there is no need to change the installation position of components around the engine 700.

[0048] In the optional technical solution of this embodiment, a liquid level sensor 800 is provided at the end of the oil filling pipe 600 connected to the engine 700. The liquid level sensor 800 is used to monitor the oil level in the engine 700. The liquid level sensor 800 is connected to the control mechanism signal. When the liquid level sensor 800 detects that the waste oil in the engine 700 is drained, the liquid level sensor 800 sends an oil drain information to the control mechanism. The control mechanism receives the information and sends a prompt signal to the outside world. When the liquid level sensor 800 detects that the oil filling level in the engine 700 reaches a preset value, the liquid level sensor 800 sends an oil filling completion information to the control mechanism. The control mechanism receives the information, controls the oil pump 100 to close, and sends a prompt signal to the outside world.

[0049] In this embodiment, if Figure 1As shown, the oil filling process is monitored in real time by the liquid level sensor 800. The liquid level sensor 800 sends the monitored oil level information in the engine 700 to the control mechanism, and the control mechanism receives the information and takes corresponding actions. Specifically, before the engine 700 is filled with oil, the original waste oil needs to be discharged. At this time, the liquid level sensor 800 is used to detect whether the waste oil is drained. When the waste oil is drained, the liquid level sensor 800 sends the result to the control mechanism. The control mechanism receives the information and sends a prompt signal to the outside world. The prompt signal can be a sound signal or a light signal to remind the operator that the waste oil has been drained and new oil can be added. After receiving the prompt message, the operator blocks the oil drain port of the engine 700 and starts the oil pump 100 through the control mechanism. The oil pump 100 starts to pump the oil from the oil barrel 500 into the engine 700. After the liquid level sensor 800 detects that the oil level in the engine 700 reaches the preset value, the liquid level sensor 800 sends the monitoring result to the control mechanism. The control mechanism immediately controls the oil pump 100 to be closed and sends a prompt signal to the outside world to remind the operator that the oil filling is completed.

[0050] In the optional technical solution of this embodiment, the control mechanism includes a controller 900 and a control terminal. The control terminal is signal-connected to the controller 900 and is used to issue an injection or stop injection instruction to the controller 900. The controller 900 is electrically connected to the oil pump 100. The controller 900 controls the start and stop of the oil pump 100 according to the information received from the control terminal.

[0051] like Figure 1 As shown, the controller 900 is arranged on the oil pump 100 and is electrically connected to the oil pump 100, and the control terminal indirectly controls the start and stop of the oil pump 100 through the controller 900. Specifically, when the engine 700 needs to be filled with oil, the staff controls the control terminal to send an oil filling instruction to the controller 900, and the controller 900 immediately controls the oil pump 100 to start after receiving the instruction, and the oil pump 100 starts to pump oil into the engine 700. During the oil filling process, the staff can control the control terminal at any time to send a stop filling instruction to the controller 900, thereby controlling the oil pump 100 to shut down. The above process is simple to operate, has a high degree of automation, and the oil filling device is highly practical. It should be pointed out that the carrier of the control terminal can be a remote control, and the staff issues instructions through the remote control. The carrier of the control terminal can also be an intelligent device, such as a smart phone, and the staff issues instructions through the intelligent device.

[0052] In the optional technical solution of this embodiment, the liquid level sensor 800 is connected to the controller 900 by signal, and is used to send oil level information to the controller 900. The controller 900 receives the oil drain information and sends a prompt signal to the outside world. The controller 900 receives the oil filling completion information and controls the oil pump 100 to shut down and sends a prompt signal to the outside world.

[0053] In this embodiment, during the oil filling process, the liquid level sensor 800 sends the monitored oil level information in the engine 700 to the controller 900, and the controller 900 receives the information and performs corresponding operations. Specifically, when the controller 900 receives the oil drain information, it sends a prompt signal to the outside world. After receiving the prompt, the staff will block the oil drain port of the engine 700, start the oil pump 100 by operating the control terminal, and the oil pump 100 will start to pump the oil from the oil barrel 500 into the engine 700. After the liquid level sensor 800 detects that the oil level in the engine 700 reaches the preset value, the liquid level sensor 800 sends the monitoring result to the controller 900, and the controller 900 immediately controls the oil pump 100 to close, and sends a prompt signal to the outside world to remind the operator that the oil filling is completed.

[0054] In an optional technical solution of this embodiment, an oil filter device 1000 is provided at the oil suction port of the oil inlet pipe 400. Specifically, Figure 1 As shown, an oil filter device 1000 is provided at the oil suction port of the oil inlet pipe 400, i.e., the end where the oil inlet pipe 400 is connected to the oil barrel 500, for filtering impurities in the oil in the oil barrel 500, thereby ensuring the purity of the oil pumped into the engine 700 by the oil pump 100, so that the engine 700 maintains good working performance.

[0055] In an optional technical solution of the present embodiment, both the oil suction port of the oil inlet pipe 400 and the oil filling port of the oil filling pipe 600 are provided with dustproof devices.

[0056] Specifically, the dustproof device is detachably connected to the oil suction port of the oil inlet pipe 400 and the oil filling port of the oil filling pipe 600. When the oil inlet pipe 400 and the oil filling pipe 600 are in working state, the dustproof device is removed to prevent the dustproof device from affecting the oil suction and oil filling of the oil filling device. When the oil inlet pipe 400 and the oil filling pipe 600 are in the retracted state, the dustproof device is installed at the ends of the two to prevent the two from being contaminated during the placement process, keep the oil pipeline clean, and thus ensure the purity of the transported oil when it is used next time. In addition, the oil inlet pipe 400 and the oil filling pipe 600 used in this embodiment are both hoses, so as to ensure that the oil flows smoothly in the pipeline and is easy to store when not in use.

[0057] In the optional technical solution of this embodiment, the support assembly 200 includes a support platform 210 and a support rib 220 , the support platform 210 is connected to the support rib 220 , the oil pump 100 is connected to the support platform 210 , and the support rib 220 is connected to the counterweight housing 300 .

[0058] Specific, combined Figure 1 and Figure 2As shown, the support assembly 200 is a bridge connecting the oil pump 100 and the counterweight housing 300, the support rib plate 220 is used to support the oil pump 100 and the support platform 210, and the support platform 210 is used to support the oil pump 100. It should be noted that the support platform 210 and the support rib plate 220 of this embodiment generally refer to devices capable of installing the oil pump 100, and their specific structures are not limited to Figure 2 As shown, other structures that can connect and install the oil pump 100 may also be used.

[0059] In an optional technical solution of this embodiment, the support platform 210 is connected to the support rib plate 220 by bolts, and the support rib plate 220 is connected to the counterweight shell 300 by bolts.

[0060] In this embodiment, if Figure 2 As shown, the support platform 210 and the support rib plate 220 are detachably connected by a bolt-nut pair, and the support rib plate 220 and the counterweight housing 300 are detachably connected by a bolt-screw hole pair. Specifically, bolt holes are reserved during the counterweight manufacturing process and tapped. The number of bolt holes is determined according to the actual bearing capacity of the counterweight housing 300. Subsequently, the support rib plate 220 is installed at the position of the reserved bolt holes in the counterweight housing 300 using bolts and washers, and the support platform 210 is fixed to the support rib plate 220 by bolts, washers and nuts. Finally, the support assembly 200 is installed and the expected support function can be achieved.

[0061] In an optional technical solution of this embodiment, the support platform 210 is riveted to the support rib plate 220 , and the support rib plate 220 is welded to the counterweight shell 300 .

[0062] In this embodiment, the connection between the support platform 210 and the support rib plate 220, and between the support rib plate 220 and the counterweight housing 300 is a fixed connection, replacing the above-mentioned detachable connection. Specifically, considering that the support assembly 200 will not be frequently replaced after installation, and its installation position does not affect the normal operation of the surrounding components of the engine 700, the support rib plate 220 can be fixed to the counterweight housing 300 by welding, so that the counterweight housing 300 does not need to reserve bolt holes, and the support platform 210 is fixed to the support rib plate 220 by rivets, which can save the use of bolts and nuts and save material costs.

[0063] An excavator provided in this embodiment includes an oil filling device. Therefore, the technical advantages achieved by the excavator include the technical advantages and effects achieved by the above-mentioned oil filling device, which will not be repeated here.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An oil filling device, characterized in that: include: Control mechanism and oil pump (100); The oil pump (100) is connected to the counterweight housing (300) via a support assembly (200); The oil inlet of the oil pump (100) is connected to an oil inlet pipe (400), and the oil pump (100) sucks oil from the oil barrel (500) through the oil inlet pipe (400); The oil filling port of the oil pump (100) is connected to an oil filling pipe (600), and the oil pump (100) fills oil into the engine (700) through the oil filling pipe (600); The control mechanism is electrically connected to the oil pump (100) and is used to control the start and stop of the oil pump (100); The end of the oil filling pipe (600) in communication with the engine (700) is provided with a liquid level sensor (800), the liquid level sensor (800) being used to monitor the oil level in the engine (700), and the liquid level sensor (800) being connected to the control mechanism for signal transmission; When the liquid level sensor (800) detects that the waste oil in the engine (700) is completely drained, the liquid level sensor (800) sends oil-drained information to the control mechanism, and the control mechanism receives the information and sends a prompt signal to the outside world; When the liquid level sensor (800) detects that the oil filling level in the engine (700) reaches a preset value, the liquid level sensor (800) sends an oil filling completion message to the control mechanism. The control mechanism receives the message, controls the oil pump (100) to shut down, and sends a prompt signal to the outside world. The oil suction port of the oil inlet pipe (400) is provided with an oil filter device (1000), and the oil suction port of the oil inlet pipe (400) and the oil filling port of the oil filling pipe (600) are both provided with dustproof devices; The support assembly (200) comprises a support platform (210) and a support rib (220), the support platform (210) is connected to the support rib (220), the oil pump (100) is connected to the support platform (210), and the support rib (220) is connected to the counterweight housing (300).

2. The oil filling device according to claim 1, characterized in that: The control mechanism includes a controller (900) and a control terminal; The control terminal is connected to the controller (900) by signal, and is used to send an oil filling or oil stop instruction to the controller (900); The controller (900) is electrically connected to the oil pump (100), and the controller (900) controls the start and stop of the oil pump (100) according to information received from the control terminal.

3. The oil filling device according to claim 2, characterized in that: The liquid level sensor (800) is connected to the controller (900) via a signal, and is used to send oil level information to the controller (900); The controller (900) receives the oil drain information and sends a prompt signal to the outside world; The controller (900) receives the oil filling completion information, controls the oil pump (100) to shut down, and sends a prompt signal to the outside world.

4. The oil filling device according to claim 1, characterized in that: The support platform (210) is connected to the support rib (220) via bolts, and the support rib (220) is connected to the counterweight housing (300) via bolts.

5. The oil filling device according to claim 1, characterized in that: The support platform (210) is riveted to the support rib (220), and the support rib (220) is welded to the counterweight shell (300).

6. An excavator, characterized in that: It comprises the engine oil filling device according to any one of claims 1 to 5.

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