Device, excavator and method for intelligently controlling oil return under crushing conditions
An intelligent control and excavator technology, applied in the field of intelligent control oil return device and oil temperature control device field, can solve the problems of increased oil return resistance, radiator damage, shortened service life of the radiator, etc., so as to reduce the oil return resistance. , The effect of reducing the temperature of hydraulic oil and improving the performance of the whole machine
Inactive Publication Date: 2016-03-02
SHANGHAI SANY HEAVY IND
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Problems solved by technology
This oil return method will increase the oil return resistance, and at the same time reduce the service life of the radiator, resulting in damage to the radiator
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0029] Embodiments of the present invention will be specifically explained below in conjunction with the accompanying drawings.
[0030] Such as figure 1 A device and an excavator for intelligently controlling oil return under crushing conditions are shown in the embodiment of the present invent...
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The invention discloses an intelligent oil return control device in the breaking working condition, an excavator and a method and belongs to the field of mechanical control. The device comprises a breaking hammer 1, an oil tank 2, a main pump 3, a reversing valve 6, a cooler 7, a temperature sensor 8 and a controller 9. An oil inlet 4 and an oil return port 5 are formed in the breaking hammer 1. An inlet, a first outlet and a second outlet are formed in the reversing valve 6. The inlet is communicated with the oil return port 5, the first outlet is communicated with the oil tank 2, and the second outlet is communicated with the oil tank 2 through the cooler 7. The temperature sensor 8 is arranged on a control oil channel. When the temperature of the control oil channel is higher than or equal to 60 DEG C to 75 DEG C, the reversing valve 6 is communicated with the inlet and the second outlet. When the temperature of the control oil channel is lower than or equal to 50 DEG C to 65 DEG C, the reversing valve 6 is communicated with the inlet and the first outlet. According to the device, the excavator and the method, the return direction of oil at the high and low temperatures is controlled by the controller, the cooler is protected from being damaged, the excavator working efficiency is improved, the cost is low, and safety and reliability are provided.
Description
technical field [0001] The invention belongs to the field of mechanical equipment control, and relates to a device for controlling oil temperature, in particular to a device, an excavator and a method for intelligently controlling oil return under the crushing working condition of an excavator. Background technique [0002] When a hydraulic excavator uses a breaker for crushing operations, due to the convenience of oil return and low oil return resistance, most of the oil return of the breaker is directly returned to the oil tank. [0003] This oil return method will not cause any problems for excavators that use the breaker for short periods of time. However, for excavators that use the breaker for a long time, this oil return method is likely to cause the problem of excessive hydraulic oil temperature. [0004] In view of the problem of high hydraulic oil temperature, some excavators currently connect the return oil of the breaker directly to the radiator, and return it t...
Claims
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IPC IPC(8): E02F9/20E02F9/22
Inventor 蒋孙辉潘利青
Owner SHANGHAI SANY HEAVY IND