Hydraulic release bearing control system for clutch mode of excavator

Abstract

The utility model relates to the technical field of excavator clutch mode control systems, in particular to an excavator clutch mode hydraulic release bearing control system which comprises an oil suction oil way. The hydraulic delivery pump and the overflow type oil source valve are respectively started by treading the one-way foot valve, so that the flow of hydraulic oil is controlled, and the hydraulic oil in the hydraulic oil tank is delivered to pass through the one-way foot valve, so that the one-way foot valve supplies oil to jack the hydraulic release bearing open, and the working state of the hydraulic release bearing is controlled; when the hydraulic release bearing in the excavator is opened, the one-way foot valve is released, the hydraulic delivery pump and the overflow type oil source valve are closed, hydraulic oil flows back into the hydraulic oil tank through the one-way foot valve, and therefore control over the hydraulic release bearing in the excavator is completed. And compared with the conventional complicated lever mechanism control, the required force is smaller, the control can be realized by lightly treading, the practicability is higher, and the cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator clutch control systems, and particularly relates to a hydraulic release bearing control system for an excavator clutch method. Background Technique

[0002] At present, such a wheeled excavator clutch device is disclosed in the market, and its structural characteristics are: including a clutch and a clutch swing arm, the clutch is connected to one end of the clutch swing arm through a shift fork rod, etc. Such a clutch device requires a complex lever mechanism and a slave cylinder mechanism when in use, which not only requires a large amount of effort when stepping on it, but also the complex mechanism will increase the maintenance cost and installation cost.

[0003] Based on the above background, a hydraulic release bearing control system for an excavator clutch method is proposed to solve the problems raised. Content of the Utility Model

[0004] Other features and advantages of the present utility model will be described in the following specification, and will be partially obvious from the specification, or understood by implementing the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the structures specifically pointed out in the specification and other specification drawings.

[0005] The purpose of the present utility model is to overcome the above deficiencies and provide a hydraulic release bearing control system for an excavator clutch method.

[0006] To achieve the above objective, the technical solution of the present utility model is: a hydraulic release bearing control system for an excavator clutch method, including: an oil suction circuit and an oil return circuit. The oil suction circuit includes a single-way foot valve, a pressure relief type oil source valve, a hydraulic delivery pump, a hydraulic oil tank, and a hydraulic release bearing. The operation of the hydraulic release bearing is electrically connected to the single-way foot valve and the pressure relief type oil source valve, the pressure relief type oil source valve is electrically connected to the hydraulic delivery pump, and the hydraulic delivery pump is connected to the hydraulic oil tank; the oil return circuit includes a single-way foot valve and a hydraulic oil tank, and the single-way foot valve is communicated with the oil return pipeline of the hydraulic oil tank.

[0007] Preferably, an oil return filter is installed on the oil return pipeline of the single-way foot valve and the hydraulic oil tank.

[0008] Preferably, the oil return filter is provided with a bypass valve.

[0009] Preferably, the oil suction circuit is conducted by stepping on the single-way foot valve.

[0010] Preferably, the oil return circuit is conducted by releasing the single-way foot valve.

[0011] Preferably, the hydraulic delivery pump is a piston pump.

[0012] Preferably, the hydraulic transfer pump is a gear pump.

[0013] Preferably, the single-way foot valve has an electronically controlled clutch structure.

[0014] Preferably, the single-way foot valve controls the oil path through a solenoid valve.

[0015] By adopting the above technical solution, the beneficial effects of the present utility model are as follows: By stepping on the single-way foot valve, the hydraulic transfer pump and the overflow oil source valve are started respectively, thereby controlling the flow of hydraulic oil. The hydraulic oil in the hydraulic oil tank is transported through the single-way foot valve, causing the single-way foot valve to push open the hydraulic release bearing with oil, thereby controlling the working state of the hydraulic release bearing. When oil return is required, the single-way foot valve is released, the hydraulic transfer pump and the overflow oil source valve are closed, and the hydraulic oil flows back into the hydraulic oil tank through the single-way foot valve, thus completing the control of the hydraulic release bearing in the excavator. This system can control the clutch device of the excavator by the method of using the single-way foot valve to push open the hydraulic release bearing with oil. Compared with the previous complex lever mechanism control, it requires less force and can be controlled with a light step, which is more practical and has a lower cost.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure.

[0017] Undoubtedly, such objectives of the present utility model and other objectives will become more apparent after the details of the preferred embodiments described in multiple drawings and diagrams below.

[0018] To make the above beneficial effects, other objectives, features and advantages of the present utility model more obvious and understandable, one or several preferred embodiments are specifically given below, and in conjunction with the attached drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model.

[0020] In the drawings, the same components are denoted by the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0021] To more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only one or several embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on such drawings.

[0022] Figure 1 This is a schematic structural diagram of a hydraulic release bearing control system for a clutch method of an excavator according to the present utility model.

[0023] Main reference numerals description: single-way foot valve - 1, hydraulic oil tank - 2, hydraulic delivery pump - 3, overflow oil source valve - 4, hydraulic release bearing - 5, return oil filter - 6. Specific embodiments

[0024] The following will combine the drawings and embodiments to detail the implementation manner of the present utility model, so as to fully understand how the present utility model uses technical means to solve technical problems and achieve the implementation process of technical effects and implement accordingly. It should be noted that as long as there is no conflict, each embodiment in the present utility model and each feature in each embodiment can be combined with each other, and the formed technical solutions are all within the protection scope of the present utility model.

[0025] At the same time, in the following description, for the purpose of explanation, many specific details are elaborated to provide a thorough understanding of the embodiments of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without the specific details here or in the specific manner described.

[0026] Please refer to Figure 1 , the present utility model provides a hydraulic release bearing control system for a clutch method of an excavator, including: an oil suction circuit and an oil return circuit. The oil suction circuit includes a single-way foot valve 1, an overflow oil source valve 4, a hydraulic delivery pump 3, a hydraulic oil tank 2, and a hydraulic release bearing 5. The operation of the hydraulic release bearing 5 is electrically connected through the single-way foot valve 1 and the overflow oil source valve 4. The overflow oil source valve 4 is electrically connected to the hydraulic delivery pump 3, and the hydraulic delivery pump 3 is connected to the hydraulic oil tank 2. The oil return circuit includes a single-way foot valve 1 and a hydraulic oil tank 2, and the single-way foot valve 1 is communicated with the oil return pipeline of the hydraulic oil tank 2.

[0027] When in use, by stepping on the single-way foot valve 1, the hydraulic delivery pump 3 and the overflow oil source valve 4 are respectively started to control the flow of hydraulic oil, and the hydraulic oil in the hydraulic oil tank 2 is conveyed through the single-way foot valve 1, so that the single-way foot valve 1 supplies oil to push open the hydraulic release bearing 5, thereby controlling the working state of the hydraulic release bearing 5. When oil return is required, the single-way foot valve 1 is released, the hydraulic delivery pump 3 and the overflow oil source valve 4 are closed, and the hydraulic oil flows back to the hydraulic oil tank 2 through the single-way foot valve 1, thereby completing the control of the hydraulic release bearing in the excavator.

[0028] According to some embodiments of the present application, optionally, a return oil filter 6 is installed on the oil return pipeline of the single-way foot valve 1 and the hydraulic oil tank 2. It has the function of filtering out pollutants in the oil fluid to ensure that the oil fluid flowing back to the hydraulic oil tank 2 remains clean.

[0029] According to some embodiments of the present application, optionally, the oil return filter 6 is provided with a bypass valve, which protects the filter element in the oil return filter 6 and the safety of the system, and ensures the continuous operation and reliability of the system.

[0030] According to some embodiments of the present application, optionally, the oil suction circuit is conducted by stepping on the single-way foot valve 1, and the oil return circuit is conducted by releasing the single-way foot valve 1, so that the oil suction and oil return circuits of the system are controlled by stepping on and releasing the single-way foot valve 1.

[0031] According to some embodiments of the present application, optionally, the hydraulic delivery pump 3 is a piston pump, which has the functions of high working pressure, compact structure, high efficiency and convenient flow regulation.

[0032] According to some embodiments of the present application, optionally, the hydraulic delivery pump 3 is a gear pump, which has the advantages of small volume, light weight, simple structure, convenient manufacturing, low price, reliable operation and good self-priming performance.

[0033] According to some embodiments of the present application, optionally, the single-way foot valve 1 has an electronically controlled clutch structure, and the single-way foot valve 1 controls the oil path through an electromagnetic valve. The system can control the clutch in a non-foot-operated manner. By setting an electronically controlled structure on the gearshift lever, only one key press is required to start to control the electromagnetic valve to control the oil path.

[0034] It should be understood that the embodiments disclosed in the present utility model are not limited to the specific processing steps or materials disclosed herein, but should extend to equivalent alternatives of such features understood by those of ordinary skill in the relevant art. It should also be understood that the terms used herein are for the purpose of describing specific embodiments only and do not imply limitation.

[0035] The "embodiments" mentioned in the specification mean that the specific features or characteristics described in connection with the embodiments are included in at least one embodiment of the present utility model. Therefore, the phrases or "embodiments" that appear throughout the specification do not necessarily all refer to the same embodiment.

[0036] In addition, the described features or characteristics can be combined into one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present utility model. However, those skilled in the relevant art will understand that the present utility model can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A hydraulic release bearing control system for an excavator clutch, characterized in that: include: An oil suction circuit and an oil return circuit, wherein the oil suction circuit comprises a single-way foot valve (1), an overflow oil source valve (4), a hydraulic delivery pump (3), a hydraulic oil tank (2) and a hydraulic release bearing (5), wherein the hydraulic release bearing (5) works by being electrically connected to the overflow oil source valve (4) through the single-way foot valve (1), the overflow oil source valve (4) is electrically connected to the hydraulic delivery pump (3), and the hydraulic delivery pump (3) is connected to the hydraulic oil tank (2); The oil return circuit comprises a single-way foot valve (1) and a hydraulic oil tank (2); the single-way foot valve (1) is in communication with an oil return pipeline of the hydraulic oil tank (2).

2. The hydraulic release bearing control system of the clutch mode of the excavator according to claim 1 is characterized in that: An oil return filter (6) is installed on the oil return pipeline between the single-way foot valve (1) and the hydraulic oil tank (2).

3. The hydraulic release bearing control system of the clutch mode of the excavator according to claim 2 is characterized in that: The return oil filter (6) is equipped with a bypass valve.

4. The hydraulic release bearing control system of the clutch mode of the excavator according to claim 1, characterized in that: The oil suction circuit is opened by stepping on the single-way foot valve (1).

5. The hydraulic release bearing control system of the clutch mode of the excavator according to claim 1, characterized in that: The oil return line is opened by releasing the one-way foot valve (1).

6. The hydraulic release bearing control system of the clutch mode of the excavator according to claim 1, characterized in that: The hydraulic delivery pump (3) is a plunger pump.

7. The hydraulic release bearing control system of the clutch mode of the excavator according to claim 1, characterized in that: The hydraulic delivery pump (3) is a gear pump.

8. The hydraulic release bearing control system of the clutch mode of an excavator according to claim 1, characterized in that: The single-way foot valve (1) is an electrically controlled clutch structure.

9. The hydraulic release bearing control system of the clutch mode of the excavator according to claim 8, characterized in that: The single-way foot valve (1) controls the direction of the oil circuit through a solenoid valve.

Images