A secondary reducer gear oil accumulation cleaning device

Abstract

The application discloses a kind of secondary speed reducer gear oil accumulation cleaning device, including installation base plate, vertical support frame, top connecting plate, nozzle mounting plate, position adjusting assembly, liquid supply component, three nozzles and dirty oil recovery component.Nozzle mounting plate height and inclination angle can be adjusted, three nozzles are spaced apart along the radial direction of gear and are installed by elastic retreat piece, respectively towards tooth groove and two opposite tooth surfaces.When gear rotates at low speed, each nozzle is in situ flushed at multiple angles to tooth groove and tooth surface, and the dirty oil and cleaning fluid that falls off are received by the oil collecting cover below the gear, collected to the recovery interface through the inclined flow guide bottom plate and discharged through the dirty oil recovery pipe.The device can improve the cleaning coverage without disassembling the gear, and can reduce the risk of nozzle collision and dirty oil splashing.

Description

Technical Field

[0001] This invention relates to the field of gear reducer maintenance equipment technology, specifically to a two-stage gear reducer gear oil cleaning device. Background Technology

[0002] During long-term operation, excessive amounts of residual oil, sludge, and wear particles mixed with the lubricating oil can easily accumulate on the gear tooth grooves and surfaces of a two-stage reducer. These deposits not only affect the inspection and maintenance of the gear surface but also accelerate the deterioration of the lubricating oil and increase the risk of tooth surface wear.

[0003] Current cleaning methods mostly involve manual wiping or disassembling the gears after the machine has stopped. Manual wiping is difficult to penetrate deep into the tooth grooves and the tooth surfaces on both sides, limiting the cleaning range, and the downtime required for disassembly and cleaning is relatively long; at the same time, the dirty oil and cleaning fluid generated during the rinsing process are prone to splashing or scattering, making them difficult to collect. Summary of the Invention

[0004] The purpose of this invention is to provide a two-stage gear reducer gear oil cleaning device to solve the problems of existing manual cleaning methods that make it difficult to cover the tooth grooves and both sides of the tooth surface, the long downtime for disassembly and cleaning, and the difficulty in collecting and recycling the dirty oil.

[0005] To achieve the above objectives, the present invention provides a two-stage gear reducer oil cleaning device, comprising a mounting base, a vertical support frame, a top connecting plate, a nozzle mounting plate, a position adjustment assembly, a liquid supply assembly, a spraying assembly, and an oil recovery assembly. The vertical support frame is fixed to the mounting base, the top connecting plate is disposed at the upper end of the vertical support frame, and the nozzle mounting plate is located below the top connecting plate and connected to the top connecting plate via the position adjustment assembly. The liquid supply assembly includes a liquid supply interface, a liquid supply main pipe, and a liquid supply distribution valve connected in sequence. The spraying assembly includes a first nozzle, a second nozzle, and a third nozzle arranged radially at intervals along the gear to be cleaned. Each nozzle is mounted on the nozzle mounting plate via an elastic relief member and is connected to the liquid supply distribution valve. The oil recovery assembly includes an oil collection hood located below the gear to be cleaned, a guide plate disposed at the bottom of the oil collection hood, a recovery interface disposed at the lowest position of the guide plate, and an oil recovery pipe connected to the recovery interface.

[0006] Furthermore, the position adjustment assembly includes a first adjusting screw and a second adjusting screw arranged at intervals along the length of the top connecting plate. The two adjusting screws are respectively threaded to the top connecting plate, and their lower ends are respectively connected to the nozzle mounting plate through rotatable connectors. Synchronous rotation of the two adjusting screws can change the installation height of the nozzle mounting plate, and differential rotation of the two adjusting screws can change the tilt angle of the nozzle mounting plate.

[0007] Furthermore, a vertically extending guide structure is provided between the nozzle mounting plate and the vertical support frame to guide the lifting and lowering movement of the nozzle mounting plate and reduce lateral swaying during adjustment.

[0008] Furthermore, the first nozzle is directed towards the tooth groove area of ​​the gear to be cleaned, while the second and third nozzles are inclined in different directions relative to the axial direction of the gear and are directed towards the two opposing tooth surfaces of the gear. Thus, the three nozzles can perform zoned cleaning of the tooth groove and the two tooth surfaces from different directions.

[0009] Furthermore, each elastic retraction component includes a guide sleeve, a sliding component, a compression spring, and a limiting component. The guide sleeve is fixed to the nozzle mounting plate, the sliding component is slidably disposed within the guide sleeve and connected to the corresponding nozzle, the compression spring is sleeved on the outside of the sliding component, and the limiting component prevents the sliding component from disengaging from the guide sleeve. When the nozzle is accidentally contacted, it can retract along the spray axis and automatically reset after the external force disappears.

[0010] Furthermore, the liquid supply distribution valve is equipped with three independent liquid outlet channels. Each liquid outlet channel is connected to the corresponding nozzle through a flexible liquid supply branch pipe and is equipped with a flow regulation structure to adjust the injection flow of each nozzle according to the degree of oil accumulation in the tooth groove and different tooth surfaces.

[0011] Furthermore, the three nozzles are connected to corresponding elastic relief members via detachable connectors. The detachable connectors can adjust and lock the spray direction of the nozzles to adapt to gears of different diameters, tooth widths, and tooth profiles.

[0012] Furthermore, the oil collection hood is detachably connected to the mounting base plate or vertical support frame, and has a receiving interface facing the gear to be cleaned and a liquid-retaining sidewall located on the outer periphery of the receiving interface. The guide plate gradually slopes downward from the side away from the recovery interface towards the recovery interface, so that the sludge and cleaning medium falling into the oil collection hood can be collected at the recovery interface.

[0013] Optionally, the end of the sludge and oil recovery pipe furthest from the recovery interface is connected to a negative pressure recovery device or a sludge and oil collection container to discharge the sludge and oil by negative pressure suction or gravity diversion, depending on the site conditions.

[0014] Beneficial effects

[0015] 1. The height and tilt angle of the nozzle mounting plate are adjusted by the position adjustment component, and three nozzles with different spray directions are used to flush the tooth groove and two opposite tooth surfaces respectively. This allows the gear to be cleaned to be continuously cleaned in circumferentially in situ during the inching or low-speed rotation of the gear, without having to remove the gear from the reducer. This expands the cleaning coverage and shortens downtime for maintenance.

[0016] Second, the nozzle is cushioned by the elastic relief component, and a centralized receiving and discharge path is formed by the oil collection cover, inclined guide plate and sludge recovery pipe set under the gear. This reduces the risk of damage caused by accidental collision between the nozzle and the gear, while also reducing the splashing of sludge and cleaning fluid, and improving the cleanliness of the maintenance site. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a two-stage reducer gear oil cleaning device according to the present invention;

[0018] Figure 2 This is a side view of the structure of the two-stage reducer gear oil cleaning device of the present invention when it is engaged with the gear to be cleaned.

[0019] Explanation of reference numerals in the attached figures

[0020] 1- Mounting base plate; 2- Liquid supply interface; 3- Liquid supply main pipe; 4- Liquid supply distribution valve; 5- Vertical support frame; 6- First adjusting screw; 7- Second adjusting screw; 8- Top connecting plate; 9- Nozzle mounting plate; 10- Elastic relief component; 11- First nozzle; 12- Second nozzle; 13- Third nozzle; 14- Oil collection hood; 15- Flow guide base plate; 16- Recovery interface; 17- Waste oil recovery pipe; 18- Gear to be cleaned. Detailed Implementation

[0021] The structure and operation of the present invention will be further described below with reference to the accompanying drawings. It should be understood that the described embodiments are for explaining the present invention, and not for limiting the scope of protection of the present invention. Unless otherwise stated, the directional terms such as above, below, front, and back used refer to the normal installation state of the device; "first," "second," and "third" are only used to distinguish different components and do not indicate the importance or fixed order between components.

[0022] like Figure 1 and Figure 2 As shown, the two-stage reducer gear oil cleaning device in this embodiment includes a mounting base plate 1, a fluid supply interface 2, a fluid supply main pipe 3, a fluid supply distribution valve 4, a vertical support frame 5, a first adjusting screw 6, a second adjusting screw 7, a top connecting plate 8, a nozzle mounting plate 9, an elastic relief member 10, a first nozzle 11, a second nozzle 12, a third nozzle 13, an oil collection hood 14, a guide plate 15, a recovery interface 16, and a waste oil recovery pipe 17. The gear 18 to be cleaned is the target of this device and is not part of the main body of the device.

[0023] Mounting base 1 forms the supporting foundation of this device, and is provided with mounting holes for detachable connection with the reducer housing, maintenance platform, or equipment foundation. Vertical support frame 5 is fixed to mounting base 1, and top connecting plate 8 is disposed at the upper end of vertical support frame 5, forming a stable gantry-type support structure with mounting base 1, vertical support frame 5, and top connecting plate 8. In use, after opening the secondary reducer maintenance cover, mounting base 1 can be fixed to one side of the first end face of the gear 18 to be cleaned, so that nozzle mounting plate 9 and the gear 18 to be cleaned are axially opposite each other.

[0024] The first adjusting screw 6 and the second adjusting screw 7 are spaced apart along the length of the top connecting plate 8 and respectively engage with threaded holes on the top connecting plate 8. The lower ends of the two adjusting screws are connected to the nozzle mounting plate 9 via rotatable connectors. When the first adjusting screw 6 and the second adjusting screw 7 are rotated synchronously, the nozzle mounting plate 9 rises and falls vertically as a whole; when only one adjusting screw is rotated or when the two adjusting screws are adjusted by different amounts, the nozzle mounting plate 9 tilts relative to the horizontal plane, thereby changing the overall spray height and pitch angle of the three nozzles. A sliding groove and guide block, guide rod and sliding sleeve, or other vertically extending guide engagement structure can be provided between the nozzle mounting plate 9 and the vertical support frame 5 to improve adjustment stability.

[0025] The liquid supply interface 2 is used to connect to an external pressurized liquid supply device, which can be a cleaning fluid pump, a circulating liquid supply pump, or a pressurized liquid storage device. The liquid supply interface 2 is connected to the liquid supply distribution valve 4 via the main liquid supply pipe 3. The liquid supply distribution valve 4 has three outlet channels, which are respectively connected to the first nozzle 11, the second nozzle 12, and the third nozzle 13 via flexible liquid supply branch pipes. The flexible liquid supply branch pipes can adapt to changes in the position of the nozzle mounting plate 9 and the displacement of each elastic relief member 10. Each outlet channel can be equipped with a needle valve, a throttle valve, or other flow regulation structure to independently adjust the spray flow of each nozzle.

[0026] The first nozzle 11, the second nozzle 12, and the third nozzle 13 are arranged radially at intervals along the gear 18 to be cleaned. The spray axis of the first nozzle 11 faces the tooth groove area of ​​the gear 18 to be cleaned, and is used to flush away the sludge and wear particles deposited at the bottom of the tooth groove and near the tooth root. The second nozzle 12 and the third nozzle 13 are inclined in different circumferential directions relative to the gear axis, so that their spray axes face the two opposite tooth surfaces of a tooth respectively. The three nozzles together form a multi-angle spray area covering the tooth groove, tooth root, and both sides of the tooth surface. The nozzles can be connected to the elastic relief member 10 by a threaded joint, a ball joint, or a universal joint with a locking structure to adjust and lock the nozzle direction.

[0027] Each nozzle is mounted to the nozzle mounting plate 9 via an elastic relief member 10. The elastic relief member 10 may include a guide sleeve fixed to the nozzle mounting plate 9, a sliding member slidably disposed within the guide sleeve, a compression spring sleeved on the outside of the sliding member, and a limiting member disposed at the end of the sliding member. The nozzle is connected to the sliding member. When the nozzle is subjected to an external force toward the nozzle mounting plate 9 due to installation errors, gear radial runout, or other reasons, the sliding member compresses the spring and moves away from the gear 18 to be cleaned. After the external force disappears, the compression spring pushes the sliding member and the nozzle back to the set position. Thus, while ensuring that the nozzle is close to the gear, the risk of rigid collision between the nozzle and the gear teeth is reduced.

[0028] An oil collection hood 14 is positioned below the gear 18 to be cleaned and is detachably connected to the mounting base 1 or the vertical support frame 5. The upper part of the oil collection hood 14 forms a receiving interface facing the gear 18 to be cleaned. A liquid-retaining sidewall is provided around the periphery of the receiving interface to collect sludge, sludge, wear particles, and cleaning media that fall from the gear grooves and surfaces. A flow guide plate 15 is located at the bottom of the oil collection hood 14 and gradually slopes downwards towards the recovery interface 16 from the side furthest from it. The recovery interface 16 is located at the lowest point of the flow guide plate 15 and communicates with the sludge recovery pipe 17.

[0029] The sludge recovery pipe 17 can be directly connected to the sludge collection container, allowing the sludge and cleaning medium to flow into the sludge collection container under gravity; it can also be connected to an external negative pressure recovery device, using negative pressure suction to accelerate the discharge speed. When using negative pressure recovery, the negative pressure recovery device can be equipped with a filter unit to separate larger sludge and abrasive particles, facilitating subsequent centralized treatment.

[0030] During the cleaning operation, first open the reducer inspection cover and confirm that the reducer is in a stopped or controlled jogging state. Fix the mounting plate 1 to one side of the first end face of the gear 18 to be cleaned, and position the oil collection cover 14 below the gear 18 to be cleaned. Then, synchronously or differentially adjust the first adjusting screw 6 and the second adjusting screw 7 to make the nozzle mounting plate 9 reach the predetermined height and tilt angle. Then, adjust the spray direction of the first nozzle 11, the second nozzle 12 and the third nozzle 13 respectively, so that the first nozzle 11 is aligned with the tooth groove area, and the second nozzle 12 and the third nozzle 13 are aligned with the two opposite tooth surfaces respectively.

[0031] After completing the position adjustment, connect the liquid supply interface 2 to the external pressurized liquid supply device, and adjust the flow rate of each channel of the liquid supply distribution valve 4 according to the degree of oil accumulation. The gear 18 to be cleaned is driven to rotate at low speed by the reducer jogging mechanism, external turning mechanism or other external drive mechanism. The three nozzles continuously or intermittently spray the cleaning medium to flush the tooth grooves and tooth surfaces that pass through the spray area in sequence. The cleaning medium causes the excess residual oil, sludge and wear particles attached to the gear surface to fall off and fall into the oil collection hood 14 by gravity. It should be noted that this device itself does not serve to drive the rotation of the gear 18 to be cleaned.

[0032] The sludge and cleaning medium that fall into the oil collection hood 14 are collected along the guide plate 15 to the recovery port 16 and discharged through the sludge recovery pipe 17. By rotating the gear 18 to be cleaned at low speed, the three nozzles can sequentially cover each tooth on the gear's circumference, thus completing in-situ cleaning without removing the gear from the shaft or reducer housing. After cleaning, the fluid supply and gear rotation are stopped, and the remaining liquid in the oil collection hood 14 is drained. Then, the device is removed or moved away.

[0033] The number of nozzles, nozzle spacing, spray pressure, and installation dimensions described in this embodiment can be adaptively adjusted according to the diameter, module, tooth width, and degree of oil accumulation of the gear 18 to be cleaned. Any technical concept that combines installation support, position adjustment, multi-nozzle spraying, elastic yielding, and centralized collection and recycling of sludge and oil falls within the protection scope of this invention.

Claims

1. A device for cleaning oil accumulation in the gears of a two-stage reducer, characterized in that, The system includes a mounting base, a vertical support frame, a top connecting plate, a nozzle mounting plate, a position adjustment assembly, a liquid supply assembly, a spraying assembly, and a sludge and oil recovery assembly. The vertical support frame is fixed to the mounting base, the top connecting plate is located at the upper end of the vertical support frame, and the nozzle mounting plate is located below the top connecting plate and connected to the top connecting plate through the position adjustment assembly. The liquid supply assembly includes a liquid supply interface, a liquid supply main pipe, and a liquid supply distribution valve connected in sequence. The spraying assembly includes a first nozzle, a second nozzle, and a third nozzle, which are arranged radially at intervals along the gear to be cleaned. They are respectively mounted on the nozzle mounting plate through elastic relief members and are respectively connected to the liquid supply distribution valve. The sludge and oil recovery assembly includes an oil collection hood located below the gear to be cleaned, a guide plate located at the bottom of the oil collection hood, a recovery interface located at the lowest position of the guide plate, and a sludge and oil recovery pipe connected to the recovery interface. In use, the nozzle mounting plate is located on one side of the first end face of the gear to be cleaned, and the first nozzle, second nozzle, and third nozzle are respectively facing different cleaning areas of the gear to be cleaned.

2. The two-stage reducer gear oil cleaning device according to claim 1, characterized in that, The position adjustment assembly includes a first adjusting screw and a second adjusting screw, which are spaced apart along the length of the top connecting plate and are threadedly connected to the top connecting plate respectively. The lower ends of the first adjusting screw and the second adjusting screw are respectively connected to the nozzle mounting plate through rotatable connectors, so as to change the height of the nozzle mounting plate by synchronous adjustment and change the tilt angle of the nozzle mounting plate by differential adjustment.

3. The two-stage reducer gear oil cleaning device according to claim 2, characterized in that, A vertically extending guide engagement structure is provided between the nozzle mounting plate and the vertical support frame. The guide engagement structure is used to restrict the vertical movement of the nozzle mounting plate and suppress its lateral sway.

4. The two-stage reducer gear oil cleaning device according to claim 1, characterized in that, The first nozzle is directed toward the tooth groove area of ​​the gear to be cleaned, and the second and third nozzles are inclined in different directions relative to the axial direction of the gear to be cleaned, and are directed toward the two opposite tooth surfaces of the gear teeth, so that the three nozzles form a multi-angle spray area.

5. The two-stage reducer gear oil cleaning device according to claim 1, characterized in that, Each of the aforementioned elastic retraction components includes a guide sleeve fixed to the nozzle mounting plate, a sliding member slidably disposed within the guide sleeve and connected to the corresponding nozzle, a compression spring sleeved on the outside of the sliding member, and a limiting member that restricts the sliding member from disengaging from the guide sleeve. The retraction direction of the sliding member is parallel or approximately parallel to the injection axis of the corresponding nozzle.

6. The two-stage reducer gear oil cleaning device according to claim 1, characterized in that, The liquid supply distribution valve has three independent liquid outlet channels. The three liquid outlet channels are respectively connected to the first nozzle, the second nozzle and the third nozzle through flexible liquid supply branch pipes, and each liquid outlet channel is equipped with a flow regulation structure.

7. The two-stage reducer gear oil cleaning device according to claim 1, characterized in that, The first nozzle, the second nozzle, and the third nozzle are respectively connected to their corresponding elastic relief members via detachable connectors. The detachable connectors are used to adjust and lock the spray direction of the corresponding nozzles.

8. The two-stage reducer gear oil cleaning device according to claim 1, characterized in that, The oil collection hood is detachably connected to the mounting base plate or vertical support frame. The oil collection hood has a receiving interface facing the gear to be cleaned and a liquid-blocking sidewall located on the outer periphery of the receiving interface. The guide plate gradually slopes downward from the side away from the recovery interface toward the recovery interface.

9. The two-stage reducer gear oil cleaning device according to claim 1, characterized in that, The end of the sludge and oil recovery pipe away from the recovery interface is connected to a negative pressure recovery device or a sludge and oil collection container to discharge the sludge and cleaning medium in the oil collection hood by means of negative pressure suction or gravity flow.

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