Excavator hydraulic system and excavator

Abstract

The utility model provides a kind of excavator hydraulic system and excavator, it is related to excavator manufacturing technical field;Among them, the excavator hydraulic system, comprising: hydraulic line;Communication pipeline, one end of the communication pipeline is communicated with the hydraulic line, and the other end is communicated with hydraulic oil collecting device;Flow sensor is arranged on the communication pipeline, for detecting the flow signal of the hydraulic oil that is discharged on the hydraulic line via the communication pipeline;Control unit, with the flow sensor electric connection, the control unit obtains the flow signal of the flow sensor, obtains exhaust detection result according to the flow signal;Display unit, with the control unit electric connection, the display unit obtains the exhaust detection result from the control unit, and displays the exhaust detection result.The utility model's scheme can improve the working efficiency of hydraulic system exhaust.

Description

Technical Field

[0001] This utility model relates to the field of excavator manufacturing technology, and in particular to an excavator hydraulic system and an excavator. Background Technology

[0002] Excavators perform numerous actions, such as boom extension, boom retraction, boom extension, boom retraction, bucket opening, and bucket closing. These actions rely on the excavator's hydraulic system to drive the corresponding components. During the initial start-up of the excavator, a large amount of gas is present in the hydraulic system. If this gas is not expelled, it can damage the hydraulic system. Current technology uses manual venting, which suffers from low work efficiency. Utility Model Content

[0003] This utility model provides an excavator hydraulic system and an excavator to solve the problem of low working efficiency of air venting in the existing excavator hydraulic system.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] In a first aspect, this utility model provides a hydraulic system for an excavator, comprising:

[0006] Hydraulic pipelines;

[0007] A connecting pipeline is provided, one end of which is connected to the hydraulic pipeline and the other end of which is connected to the hydraulic oil collection device; a flow sensor is provided on the connecting pipeline to detect the flow signal of the hydraulic oil discharged from the hydraulic pipeline through the connecting pipeline.

[0008] The control unit is electrically connected to the flow sensor. The control unit obtains the flow signal from the flow sensor and obtains the exhaust gas detection result based on the flow signal.

[0009] The display unit is electrically connected to the control unit. The display unit obtains the exhaust detection result from the control unit and displays the exhaust detection result.

[0010] Optionally, in the excavator hydraulic system, a pressure switch is also provided on the connecting pipeline.

[0011] Optionally, the excavator hydraulic system further includes a check valve on the connecting pipeline.

[0012] Optionally, the excavator hydraulic system further includes:

[0013] An indicator light is electrically connected to the control unit. The control unit acquires the flow signal from the flow sensor and sends a light-up signal to the indicator light.

[0014] Optionally, in the excavator hydraulic system, one end of the connecting pipe is connected to the hydraulic pipe via a quick connector.

[0015] Secondly, this utility model also provides an excavator, including the excavator hydraulic system as described in the first aspect.

[0016] The beneficial effects of this utility model are:

[0017] The excavator hydraulic system described in this embodiment includes: a hydraulic pipeline; a connecting pipeline, one end of which is connected to the hydraulic pipeline, and the other end of which is connected to a hydraulic oil collection device; a flow sensor installed on the connecting pipeline for detecting the flow signal of the hydraulic oil discharged through the connecting pipeline; a control unit electrically connected to the flow sensor, which obtains the flow signal from the flow sensor and obtains the venting detection result based on the flow signal; and a display unit electrically connected to the control unit, which obtains the venting detection result from the control unit and displays the venting detection result. In this way, hydraulic oil and gas are discharged from the hydraulic pipeline, achieving hydraulic system venting, solving the problem of low efficiency in manual venting of hydraulic systems, and also enabling the testing of the hydraulic system during the excavator manufacturing process.

[0018] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0019] The accompanying drawings are provided for a better understanding of this solution and do not constitute a limitation on this utility model. Wherein:

[0020] Figure 1 This is a schematic diagram showing the structure of the excavator hydraulic system according to an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the display unit described in an embodiment of the present invention. Detailed Implementation

[0022] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of the present invention, including various details to aid understanding. These embodiments should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0023] This invention addresses the problem of low exhaust efficiency in existing excavator hydraulic systems by providing a new excavator hydraulic system.

[0024] like Figures 1 to 2 As shown, the excavator hydraulic system includes:

[0025] Hydraulic pipelines;

[0026] A connecting pipeline is provided, one end of which is connected to the hydraulic pipeline and the other end of which is connected to the hydraulic oil collection device; a flow sensor is provided on the connecting pipeline to detect the flow signal of the hydraulic oil discharged from the hydraulic pipeline through the connecting pipeline.

[0027] The control unit is electrically connected to the flow sensor. The control unit obtains the flow signal from the flow sensor and obtains the exhaust gas detection result based on the flow signal.

[0028] The display unit is electrically connected to the control unit. The display unit obtains the exhaust detection result from the control unit and displays the exhaust detection result.

[0029] In this embodiment of the invention, the hydraulic lines include hydraulic lines related to at least one of the following actions of the excavator: boom extension, boom retraction, boom extension, boom retraction, bucket opening, and bucket closing.

[0030] The control unit includes a PLC (Programmable Logic Controller).

[0031] The display unit can be connected to the excavator's production and operation system to acquire and display at least one of the following: excavator model code, model name, serial number, order number, and consecutive number. Since the excavator's movements are controlled by the left and right joysticks, the display unit can also display schematic diagrams of the excavator's left and right joysticks, as well as the exhaust detection results for at least one of the following actions: boom extension, boom retraction, boom extension, boom retraction, bucket opening, and bucket closing.

[0032] It should be noted that each action on the display unit is indicated by a single indicator light (e.g., ...). Figure 2 The small circle in the diagram indicates the exhaust detection result. Specifically, if exhaust is successful, the indicator light will turn green. Specifically, the control unit obtains the flow signal from the flow sensor, determines the exhaust detection result of the target excavator action as successful based on the flow signal, and sends a signal to the display unit to illuminate the indicator light corresponding to the target action. Each excavator action corresponds to one flow sensor; obtaining the flow signal from different flow sensors determines the type of excavator action.

[0033] It should also be noted that when the boom, arm, or bucket of the excavator to be vented moves, the hydraulic oil and gas flow in the corresponding hydraulic pipeline from one end of the connecting pipeline. On the one hand, the hydraulic oil and gas flow out through the other end of the connecting pipeline to the hydraulic oil collection device, thus venting the gas. On the other hand, the flow sensor installed on the connecting pipeline detects the flow signal of the hydraulic oil, and the flow signal is fed back to the control unit. The control unit obtains the venting detection result and feeds it back to the display unit, which makes the venting detection result visible.

[0034] As an optional embodiment, a pressure switch is also provided on the connecting pipeline.

[0035] In this embodiment of the present invention, the pressure switch is also provided on the connecting pipeline. When the hydraulic oil and gas discharged from the hydraulic pipeline flow into the connecting pipeline from one end, the pressure switch detects the pressure signal and switches from the closed state to the open state, and the hydraulic oil and gas flow out from the other end of the connecting pipeline to the hydraulic oil collection device.

[0036] As an optional embodiment, a check valve is also provided on the connecting pipeline.

[0037] In this embodiment of the present invention, in order to prevent the hydraulic oil and gas in the connecting pipeline from flowing back into the hydraulic pipeline, a check valve is also provided on the connecting pipeline.

[0038] As an optional embodiment, the excavator hydraulic system further includes:

[0039] An indicator light is electrically connected to the control unit. The control unit acquires the flow signal from the flow sensor and sends a light-up signal to the indicator light.

[0040] In this embodiment of the present invention, when the control unit obtains the flow signal from the flow sensor, it means that the exhaust detection result is obtained. The exhaust detection result indicates that the hydraulic pipeline has been successfully vented. The control unit sends a lighting signal to the indicator light, and then the indicator light illuminates, allowing the operator to know that the hydraulic pipeline has been successfully vented.

[0041] It should be noted that one excavator action can correspond to one hydraulic line, one connecting line, and one indicator light. Therefore, when the indicator light is lit, it can be seen that the hydraulic line has been successfully vented, and it can also be seen that the excavator action has been tested correctly.

[0042] As an optional embodiment, one end of the connecting pipe is connected to the hydraulic pipe via a quick connector.

[0043] In this embodiment of the utility model, when venting the hydraulic pipeline, it is necessary to connect one end of the connecting pipe to the hydraulic pipeline through the quick connector.

[0044] In summary, the excavator hydraulic system described in this embodiment of the invention enables automated venting of the excavator's hydraulic system, preventing damage to the hydraulic system caused by unvented gas. It solves the problem of low efficiency in manual venting of hydraulic systems and also enables the testing of the hydraulic system during the excavator manufacturing process, avoiding potential safety hazards in the future.

[0045] This utility model embodiment also provides an excavator, including the excavator hydraulic system described in the above embodiment.

[0046] In this embodiment of the invention, the excavator hydraulic system described above is used, which has the beneficial effects described above, and will not be repeated here.

[0047] It should be noted that the excavator hydraulic system described in the above embodiments can also be applied to other large mechanical equipment besides excavators.

[0048] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An excavator hydraulic system, characterized by, include: Hydraulic pipelines; A connecting pipeline is provided, one end of which is connected to the hydraulic pipeline and the other end of which is connected to the hydraulic oil collection device; a flow sensor is provided on the connecting pipeline to detect the flow signal of the hydraulic oil discharged from the hydraulic pipeline through the connecting pipeline. The control unit is electrically connected to the flow sensor. The control unit obtains the flow signal from the flow sensor and obtains the exhaust gas detection result based on the flow signal. The display unit is electrically connected to the control unit. The display unit obtains the exhaust detection result from the control unit and displays the exhaust detection result.

2. The excavator hydraulic system of claim 1, wherein, A pressure switch is also installed on the connecting pipeline.

3. The excavator hydraulic system of claim 1, wherein, A check valve is also installed on the connecting pipeline.

4. The excavator hydraulic system of claim 1, wherein, Also includes: An indicator light is electrically connected to the control unit. The control unit acquires the flow signal from the flow sensor and sends a light-up signal to the indicator light.

5. The excavator hydraulic system of claim 1, wherein, One end of the connecting pipe is connected to the hydraulic pipe via a quick connector.

6. An excavator characterized by comprising: Includes the excavator hydraulic system as described in any one of claims 1 to 5.

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