Closed gearbox cleaning device

Abstract

The invention belongs to the technical field of cleaning of complex parts, and relates to a closed gearbox cleaning device. Comprising an external motor, a tool, an overturning disc, a base, a filter and a console, in the cleaning process of the gear box, the whole gear box rotates in the X direction and the Y direction, meanwhile, an internal gear rotates, the interior of the gear box can be fully washed, and then the cleanliness control level is improved. And the cleanliness control level and the cleaning efficiency are greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of complex component cleaning, and relates to a closed gearbox cleaning device. Background Art

[0002] After assembly and before delivery, or after testing and before delivery, a closed gearbox usually needs to be flushed or cleaned inside the component to improve the cleanliness level inside the component and ensure that during subsequent operation, product wear, blockage, etc. do not occur due to the presence of large-sized particles or a low cleanliness level.

[0003] The conventional method for flushing a gearbox is to use a flushing tester to pump clean and fresh flushing oil into the gearbox from the oil inlet using a pump, and let it flow out from the oil outlet to the oil storage tank. There is a filtering device in the oil storage tank, and it is flushed repeatedly in this way to improve the cleanliness level inside the gearbox.

[0004] However, when the internal cavity of the gearbox is complex, the number of gears is large, and the cleanliness level requirement is high, there may be situations where the flushing oil cannot reach some corner areas and the internal fluidity is poor. Even if measures such as extending the flushing time, changing the oil inlet and outlet are taken, the gearbox is often not flushed clean and the cleanliness level is unqualified. Summary of the Invention

[0005] Object of the Invention

[0006] To provide a cleaning method for a closed gearbox, especially for a gearbox with a complex internal cavity structure, a large number of internal parts, and high cleanliness requirements. Through this cleaning method, the cleaning ability can be improved, and the internal cleanliness level can be effectively increased.

[0007] Technical Solution

[0008] A closed gearbox cleaning device includes an external motor, a tooling, a turntable, a base, a filter, and a console; there are support arms on both sides of the base, the support arms are symmetrically distributed, and the turntable is supported by slip rings on the support arms respectively, so that the turntable can rotate around the slip ring as the axis, while ensuring continuous transmission of the oil circuit and the circuit. The internal gear ring on the turntable meshes with the external gear ring of the tooling. The tooling is driven by a rotating motor, so that the tooling and the turntable generate relative rotational movement. The gearbox is fixed on the tooling through fasteners. The external motor is connected to the power input end of the gearbox to drive the gears inside the gearbox to rotate. The filter is arranged inside the base, and the filtered cleaning liquid inside the filter is transported to the gearbox oil inlet through a pump and returns to the filter from the oil outlet. The console is connected to the external motor, the turntable, the base, and the filter respectively through wires. By operating the console, the turntable, the base, and the gears inside the gearbox can rotate respectively, realizing multi-dimensional cleaning of the internal space of the gearbox.

[0009] Further, the rotation speed of the tooling is set to 5 - 10 r / min. Since the parts to be cleaned this time are relatively large, the rotation speed is set relatively low.

[0010] Further, the rotation speed of the flipping disc is set to 3 - 5 r / min. Since the parts to be cleaned this time are relatively large, the rotation speed is set relatively low.

[0011] Further, the rotation speed of the internal gears in the gearbox is set to 50 - 100 r / min. Since the internal gears of the parts to be cleaned this time are relatively small, the rotation speed is set relatively high.

[0012] Further, the volume of the flushing oil inside the gearbox accounts for 70% - 85% of the internal space. After verification, the cleaning effect at this ratio is better.

[0013] Further, the operation console is a common one that controls the start, stop, and running time of the motor through the switch of the PLC, and controls the start, stop, and running time of the pump, etc. through PLC programming.

[0014] Further, the operation control 6 can control the start and stop of the pump for pumping the cleaning liquid, the start and stop of the flipping motor, the start and stop of the rotating motor, and the start and stop of the motor outside the gearbox. The operation console is connected to the motor through wires.

[0015] Further, the selected oil inlet and oil outlet on the gearbox should be as far apart as possible to ensure that the cleaning oil can flush the inside of the product more fully;

[0016] Further, the length of the flushing time is related to the cleanliness level of the product and the complexity of the internal structure.

[0017] Further, if the test result of the cleanliness level is unqualified after cleaning, it is necessary to appropriately increase the cleaning time and continue cleaning.

[0018] Further, the cleaning device needs to be maintained regularly, and the filter element in the filter should be replaced as required.

[0019] The beneficial effects of this application are as follows:

[0020] An enclosed gearbox cleaning method with a complex internal structure is invented. During the cleaning process of the gearbox, the whole rotates along the X direction and the Y direction, and at the same time, the internal gears rotate self - sufficiently, which can achieve full flushing inside the gearbox, thereby improving the cleanliness control level. Both the cleanliness control level and the cleaning efficiency are greatly improved. Description of the Drawings

[0021] Figure 1 Schematic diagram of the cleaning device structure;

[0022] Among them: external motor 1, tooling 2, turntable 3, base 4, filter 5, console 6, gearbox 7. Specific implementation mode

[0023] The present invention will be further described below in conjunction with embodiments. The following only describes some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] The present invention will be further described below in conjunction with embodiments:

[0025] The gearbox is of a closed structure with multiple gears inside. The gearbox retains an oil inlet and an oil outlet, connects to an external filtering device, retains an external motor interface to connect with the motor, and seals the remaining openings.

[0026] The cleanliness level requirement inside the gearbox reaches level 4 specified in the GJB420B standard, and the process requirement is that the flushing time for the cleanliness level to reach level 4 from level 6 does not exceed 2.5 hours.

[0027] First, tighten and fix the gearbox on the tooling. The tooling is fixed to the turntable, connect the oil inlet and oil outlet of the filtering device to the oil outlet and oil inlet of the gearbox respectively, and connect the motor to the external motor interface of the gearbox.

[0028] During flushing, the tooling rotates around the Y-axis at a speed of 8 r / min, the turntable rotates around the X-axis at a speed of 4 r / min, and the motor drives the internal gears of the gearbox to rotate at a speed of 60 r / min.

[0029] The flushing oil inside the gearbox accounts for 70% - 85% of the internal space.

[0030] The flushing time is set to 2.5 h. If the cleanliness level test result is unqualified after cleaning, appropriately increase the cleaning time and continue cleaning.

[0031] After continuously flushing the inside of the gearbox in a multi-dimensional, all-round and non-blind-angle manner, the cleanliness of the parts is detected after flushing, reaching level 4 specified in the GJB420B standard required by the drawing.

[0032] Closed gearbox cleaning device, including external motor 1, tooling 2, turntable 3, base 4, filter 5, control console 6; there are support arms on both sides of the base 4, the support arms are symmetrically distributed, and the turntable 3 is supported by slip rings on the support arms, so that the turntable 3 can rotate around the slip ring as the axis, while ensuring continuous transmission of the oil circuit and the circuit. The internal gear ring on the turntable 3 meshes with the external gear ring of the tooling 2. The tooling 2 is driven by a rotating motor, so that a relative rotational movement is generated between the tooling 2 and the turntable 3. The gearbox is fixed on the tooling 2 through fasteners. The external motor 1 is connected to the power input end of the gearbox to drive the gears inside the gearbox to rotate. The filter 5 is arranged inside the base 4, and the filtered cleaning liquid inside the filter 5 is transported to the oil inlet of the gearbox through a pump and returned to the filter 5 from the oil outlet. The control console is respectively connected to the external motor 1, turntable 3, base 4, and filter 5 through wires. By operating the control console 6, the turntable 3, the base 4, and the gears inside the gearbox can be rotated respectively, realizing multi-dimensional cleaning of the internal space of the gearbox.

[0033] In a certain embodiment of the present invention, the rotational speed of the tooling 2 is set to 5 - 10 r / min. Since the components to be cleaned this time are relatively large, the rotational speed is set relatively low.

[0034] In a certain embodiment of the present invention, the rotational speed of the turntable 3 is set to 3 - 5 r / min. Since the components to be cleaned this time are relatively large, the rotational speed is set relatively low.

[0035] In a certain embodiment of the present invention, the rotational speed of the internal gears of the gearbox 7 is set to 50 - 100 r / min. Since the internal gears of the components to be cleaned this time are relatively small, the rotational speed is set relatively high.

[0036] In a certain embodiment of the present invention, the volume of the flushing oil inside the gearbox accounts for 70% - 85% of the internal space. After verification, the cleaning effect of this ratio is better.

[0037] In a certain embodiment of the present invention, the operation control console 6 is a common one that controls the start, stop, and running time of the motor through the switch of the PLC, and controls the start, stop, and running time of the pump through PLC program compilation and other functions.

[0038] In a certain embodiment of the present invention, the operation control console 6 can control the start and stop of the pump for pumping the cleaning liquid, the start and stop of the turning motor, the start and stop of the rotating motor, and the start and stop of the external motor of the gearbox. The operation control console is connected to the motor through wires.

[0039] In a certain embodiment of the present invention, the selected oil inlet and oil outlet on the gearbox should be as far apart as possible to ensure that the cleaning oil can flush the inside of the product more fully;

[0040] In a certain embodiment of the present invention, the duration of rinsing is related to the cleanliness level of the product and the complexity of its internal structure.

[0041] In a certain embodiment of the present invention, if the cleanliness level test result is unqualified after cleaning, it is necessary to appropriately increase the cleaning time and continue cleaning.

[0042] In a certain embodiment of the present invention, the cleaning device needs to be maintained regularly, and the filter element in the filter 5 should be replaced as required.

[0043] Those skilled in the art of this technology can understand that unless otherwise defined, all terms used herein (including technical terms and scientific terms) have the same meaning as the general understanding of those of ordinary skill in the art to which the present invention belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless defined as here. The specific embodiments described above have further elaborated on the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above is only the specific embodiment of the present invention and is not used to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A closed gearbox cleaning device, characterized in that, it includes an external motor, a tooling, a turntable, a base, a filter, and a console; both sides of the base are provided with support arms, the support arms are symmetrically distributed, and the turntable is supported by slip rings on the support arms respectively, so that the turntable can rotate around the slip ring as the axis, while ensuring continuous transmission of the oil circuit and the circuit. The internal gear ring on the turntable meshes with the external gear ring of the tooling. The tooling is driven by a rotating motor, so that the tooling and the turntable generate relative rotational motion. The gearbox is fixed on the tooling through fasteners. The external motor is connected to the power input end of the gearbox to drive the gears inside the gearbox to rotate. The filter is arranged inside the base, and the filtered cleaning liquid inside the filter is transported to the oil inlet of the gearbox through a pump and returned to the filter from the oil outlet. The console is respectively connected to the external motor, the turntable, the base, and the filter through wires. By operating the console, the turntable, the base, and the gears inside the gearbox can rotate respectively, realizing multi-dimensional cleaning of the internal space of the gearbox.

2. The device according to claim 1, characterized in that, the rotation speed of the tooling is set to 5 - 10 r / min.

3. The device according to claim 2, characterized in that, the rotation speed of the turntable is set to 3 - 5 r / min.

4. The device according to claim 3, characterized in that, the rotation speed of the gears inside the gearbox is set to 50 - 100 r / min.

5. The device according to claim 4, characterized in that, the volume of the flushing oil inside the gearbox accounts for 70% - 85% of the internal space.

6. The device according to claim 5, characterized in that, the operation console is a common one that controls the start, stop, and running time of the motor through the switch of the PLC, and controls the start, stop, and running time of the pump through PLC programming.

7. The device according to claim 6, characterized in that, the operation control can control the start and stop of the pump for pumping the cleaning liquid, the start and stop of the turning motor, the start and stop of the rotating motor, and the start and stop of the external motor of the gearbox; the operation console is connected to the motor through wires.

8. The device according to claim 7, characterized in that, the selected oil inlet and oil outlet on the gearbox should be as far as possible to ensure that the cleaning oil can flush the inside of the product more fully.

9. The device according to claim 8, characterized in that, the length of the flushing time is related to the cleanliness level of the product and the complexity of the internal structure.

10. The device according to claim 9, characterized in that, if the detection result of the cleanliness level is unqualified after cleaning, it is necessary to appropriately increase the cleaning time and continue cleaning; the cleaning device needs to be maintained regularly, and the filter element in the filter should be replaced as required.

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