Anti-splashing device for gear set lubricating oil and speed reducer

Abstract

The utility model belongs to the technical field of speed reducers, and particularly relates to an anti-splashing device for gear set lubricating oil and a speed reducer, the anti-splashing device is arranged above a gear set, the gear set comprises two gears meshed with each other, the anti-splashing device comprises two arc-shaped flow guide plates, the two flow guide plates are respectively located above the two gears, and the two arc-shaped flow guide plates are arranged on the speed reducer. A plurality of flow guide pieces perpendicular to the flow guide plates are evenly distributed at the bottoms of the flow guide plates, a gap for lubricating oil to pass through exists between the two flow guide plates, the axis of each flow guide plate coincides with the axis of the corresponding gear, and a second oil supply branch pipe supplies oil to the meshed position of the first bevel gear and the second bevel gear. The first guide plate and the second guide plate enable lubricating oil splashed at the bottom to drop to the insection surfaces of the first bevel gear and the second bevel gear through the guide pieces, so that the lubricating oil is attached to the insection positions of the first bevel gear and the second bevel gear to form oil films, abrasion between the bevel gears is reduced, and the service life of the bevel gears is prolonged. And the service lives of the first bevel gear and the second bevel gear are prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of speed reducer, specifically relates to a kind of for gear set lubricating oil's anti-splashing device and speed reducer. BACKGROUND

[0002] Speed reducer is widely used in heavy industry system, and is suitable for metallurgy, non-ferrous, coal, building material, ship, water conservancy, electric power, engineering machinery and petrochemical industry, when speed reducer works for a long time, the transmission gear in the interior is mutually high-speed friction, long-term friction causes transmission gear to appear abrasion, shortens the service life of transmission gear, usually to the lubricating oil in speed reducer, so that lubricating oil lubricates and cools transmission gear, to reduce the abrasion between transmission gear and the heat generated when rubbing;

[0003] In order to effectively lubricate and protect the transmission gear in the speed reducer, the oil pipe is arranged at the meshing position between the transmission gears to supply oil, which reduces the abrasion rate of the transmission gears, but when the transmission gears rotate at high speed, the lubricating oil on the surface of the transmission gears is thrown out, so that the lubricating oil cannot form an oil film on the surface of the transmission gears, and the transmission gears without oil film will still increase the abrasion rate. SUMMARY

[0004] The utility model discloses to solve the problem that the abrasion rate of transmission gear is improved due to the high speed of transmission gear, and provides a kind of for gear set lubricating oil's anti-splashing device and speed reducer, reduces the lubricating oil splashing due to the high speed of transmission gear, and improves the abrasion rate of transmission gear.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is: an anti-splashing device for gear set lubricating oil is arranged above the gear set, the gear set includes two gears meshing with each other, the anti-splashing device includes two arc-shaped guide plates, the two guide plates are located above the two gears, the bottom of the guide plate is uniformly provided with a plurality of guide vanes perpendicular to the guide plate, there is a gap for lubricating oil to pass between the two guide plates, and the axis of each guide plate coincides with the axis of the corresponding gear.

[0006] In a further aspect, the guide plate comprises a first guide plate and two second guide plates, the two second guide plates are fixedly connected to the two sides of the first guide plate respectively, the guide fins comprise a plurality of first guide fins and a plurality of second guide fins, the plurality of first guide fins are fixedly arranged on the bottom of the first guide plate, and the plurality of second guide fins are fixedly arranged on the bottom of the second guide plate. The first guide fins make the splashed lubricating oil more concentrated and flow to the gear. In a further aspect, after the two side edges of the first guide plate are connected with the second guide plates, the top surface of the first guide plate and the top surface of the second guide plate form an obtuse angle, thereby forming a channel for the lubricating oil to flow out.

[0007] In a further aspect, the width of the first guide plate is smaller than the width of the gear, and the width of the second guide plate is greater than the width of the first guide plate.

[0008] The utility model also provides a speed reducer, the speed reducer includes casing and power mechanism, be provided with transmission mechanism in the casing, power mechanism drives transmission mechanism rotation, speed reducer still includes casing, the oil supply pipe of casing outside and above -mentioned be used for gear set lubricating oil's anti -splashing device, transmission mechanism includes input and output, realizes the transmission through a plurality of gear sets between input and output, anti -splashing device sets up on gear set, the top of guide plate is fixed with fixed link, and fixed link is fixed to the inner wall of casing, and fixed link plays the supporting role to anti -splashing device.

[0009] Every gear set top is equipped with first oil supply branch pipe, and a plurality of oil supply branch pipes are communicated with the oil supply pipe after passing through the casing.

[0010] In a further aspect, the casing comprises an upper casing and a lower casing, the upper casing and the lower casing are spliced, the transmission mechanism is located between the upper casing and the lower casing, the transmission mechanism further comprises a plurality of transmission shafts, two gear sleeves of the gear set are arranged on the transmission shafts, the transmission shafts are rotatably connected with the casing, and the transmission shafts realize transmission through gears.

[0011] In a further aspect, the oil outlets of the first oil supply branch pipes are located above the meshing positions of the two gears in the gear set, a second oil supply branch pipe is further arranged on the oil supply pipe, and the oil outlet of the second oil supply branch pipe is located above the meshing position of the gear set on the transmission shaft connected with the input.

[0012] In a further aspect, the gear set on the transmission shaft connected with the input comprises a first helical gear and a second helical gear meshing with the first helical gear, the anti-splashing device is arranged above the first helical gear and the first helical gear, and the oil outlet of the second oil supply branch pipe is located above the meshing position of the first helical gear and the second helical gear.

[0013] In a further aspect, the lower casing is communicated with an oil outlet pipe on one side.

[0014] The beneficial effects of this utility model through the above technical solution are as follows:

[0015] Two arc-shaped guide plates collect the lubricating oil splashed on the gears and drip it back onto the tooth surface, gradually forming an oil film and extending the service life of the gears.

[0016] The second oil supply branch pipe supplies oil to the meshing area of ​​the first and second helical gears to reduce wear. The first and second guide plates guide the lubricating oil splashed at the bottom to the tooth surface of the first and second helical gears through the guide plates, so that the lubricating oil adheres to the tooth surface of the first and second helical gears, thereby forming an oil film, which reduces wear between the helical gears and extends the service life of the first and second helical gears. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a speed reducer according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of an anti-splash device for gear set lubricating oil according to the present invention. Figure 1 .

[0019] Figure 3 This is a schematic diagram of the structure of an anti-splash device for gear set lubricating oil according to the present invention. Figure 2 .

[0020] The numbers in the attached diagram are as follows: 1-Upper housing, 2-Lower housing, 3-Oil supply pipe, 31-Second oil supply branch pipe, 32-Nozzle, 4-Input shaft, 5-Transmission mechanism, 51-First helical gear, 52-First guide plate, 521-First guide vane, 53-Second guide plate, 531-Second guide vane, 532-Fixing rod, 6-Second helical gear, 9-Output shaft, 10-Top cover, 101-Lifting through hole, 11-Observation port, 12-Oil outlet pipe. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1-3 As shown, this embodiment provides an anti-splash device for lubricating oil in a gear set, which is disposed above the gear set. The gear set includes two meshing gears. The anti-splash device includes two arc-shaped guide plates, which are respectively located above the two gears. Several guide vanes perpendicular to the guide plates are evenly distributed on the bottom of the guide plates. There is a gap between the two guide plates for lubricating oil to pass through. The axis of each guide plate coincides with the axis of the corresponding gear.

[0023] The flow guide plate comprises a first flow guide plate 52 and two second flow guide plates 53. Specifically, the two ends of the second flow guide plates 53 are matched with the arc-shaped first flow guide plate 52, the middle parts of the two second flow guide plates 53 are outwardly protruding, and the vertical sections of the two second flow guide plates 53 are arc-shaped. The two second flow guide plates 53 are fixedly connected to the two sides of the first flow guide plate 52. After the two sides of the first flow guide plate 52 are connected with the second flow guide plates 53, the top surface of the first flow guide plate 52 and the top surface of the second flow guide plate 53 form an obtuse angle, forming a channel for the lubricating oil to flow out. Specifically, the protruding parts of the two second flow guide plates 53 after being fixed are directed to the same direction, and the two second flow guide plates 53 are inclined on the two sides of the first flow guide plate 52.

[0024] The flow guide plate comprises a first flow guide plate 52 and two second flow guide plates 53. Specifically, the two ends of the second flow guide plates 53 are matched with the arc-shaped first flow guide plate 52, the middle parts of the two second flow guide plates 53 are outwardly protruding, and the vertical sections of the two second flow guide plates 53 are arc-shaped. The two second flow guide plates 53 are fixedly connected to the two sides of the first flow guide plate 52. After the two sides of the first flow guide plate 52 are connected with the second flow guide plates 53, the top surface of the first flow guide plate 52 and the top surface of the second flow guide plate 53 form an obtuse angle, forming a channel for the lubricating oil to flow out. Specifically, the protruding parts of the two second flow guide plates 53 after being fixed are directed to the same direction, and the two second flow guide plates 53 are inclined on the two sides of the first flow guide plate 52.

[0025] The width of the first flow guide plate 52 is smaller than the width of the gear, and the width of the second flow guide plate 53 is greater than the width of the first flow guide plate 52. When the gear rotates, the lubricating oil on the surface of the gear splashes to the bottom of the first flow guide plate 52, and the bottom of the first flow guide plate 52 makes the lubricating oil drop to the surface of the gear. Because the first flow guide plate 52 is relatively narrow, the lubricating oil flowing out is relatively concentrated and returns to the surface of the gear. The second flow guide plate 53 makes the splashed and diffused lubricating oil flow to the lower surface of the first flow guide plate 52 and then drop to the surface of the gear.

[0026] The embodiment also provides a speed reducer. The speed reducer comprises a housing, a power mechanism and a transmission mechanism 5 arranged in the housing. The power mechanism drives the transmission mechanism 5 to rotate. The speed reducer also comprises the housing, an oil supply pipe 3 arranged outside the housing and the above-mentioned anti-splashing device for the lubricating oil of the gear set. The transmission mechanism 5 comprises an input end 4 and an output end 9. Specifically, the input end 4 comprises an input shaft 4 connected with a motor. The output end 9 comprises an output shaft 9 connected with a rotary kiln device to provide power for the rotary kiln device. The input end 4 and the output end 9 are connected through a plurality of gear sets to realize transmission. The anti-splashing device can be arranged only on the gear set of the transmission shaft connected with the input end 4, because the gear set has the fastest rotating speed. The anti-splashing device can also be arranged on each gear set. A fixing rod 532 is fixed to the inner wall of the housing at the top of the flow guide plate.

[0027] Each gear set is provided with a first oil supply branch pipe, and the plurality of oil supply branch pipes are communicated with the oil supply pipe 3 after penetrating through the shell.

[0028] The shell comprises an upper shell 1 and a lower shell 2, specifically, the upper shell 1 is provided with lifting through holes 101 at two ends of the top for lifting the speed reducer, and the upper shell 1 is also provided with a through slot at the top, the through slot is covered with a top cover 10 larger than the through slot, the top cover 10 is provided with an observation hole 11 for observing the rotation of the gear, the upper shell 1 and the lower shell 2 are spliced, and the lower shell 2 is communicated with an oil outlet pipe 12 at one side, the transmission mechanism 5 is located between the upper shell 1 and the lower shell 2, the transmission mechanism 5 further comprises a plurality of transmission shafts, two gear sets of the transmission mechanism 5 are sleeved on the transmission shafts, the transmission shafts are rotatably connected with the shell, and the transmission shafts are driven by the gears. Specifically, the transmission shafts are four, the four transmission shafts are arranged from left to right in sequence, and the power is transmitted through the gears.

[0029] The oil outlet of the first oil supply branch pipe is located above the meshing position of the two gears of the gear set, and the second oil supply branch pipe 31 is further arranged on the oil supply pipe 3, specifically, the second oil supply branch pipe 31 is provided with a valve, and the oil outlet of the second oil supply branch pipe 31 is located above the meshing position of the gear set on the transmission shaft connected with the input end 4. Specifically, the oil outlet of the second oil supply branch pipe 31 is fixedly provided with a spray head 32, the spray head 32 sprays lubricating oil on the meshing position of the gear set, so as to reduce the abrasion between the gears.

[0030] The gear set on the transmission shaft connected with the input end 4 comprises a first helical gear 51 and a second helical gear 6 meshing with the first helical gear 51, the first helical gear 51 and the first helical gear 51 are provided with anti-splashing devices above the first helical gear 51 and the first helical gear 51, and the oil outlet of the second oil supply branch pipe 31 is located above the meshing position of the first helical gear 51 and the second helical gear 6.

[0031] The utility model specifically works in the following way:

[0032] The staff starts the motor before using the speed reducer, the output shaft 4 of the motor drives the leftmost transmission shaft to rotate, the leftmost transmission shaft drives the adjacent transmission shaft to rotate through the gear, the power is transmitted to the rightmost transmission shaft in sequence, and the rightmost transmission shaft drives the output shaft 9 to rotate, and the output shaft 9 provides power for other devices, such as a rotary kiln device.

[0033] The second oil supply branch pipe 31 is added above the meshing position of the first helical gear 51 and the second helical gear 6, mainly to solve the problem that when the first helical gear 51 and the second helical gear 6 rotate at a high speed, the lubricating oil on the gear surface is thrown out, and when the lubricating oil splashes to the bottom of the first arc-shaped plate 52 and the second arc-shaped plate 53, the first flow guide piece 521 and the second flow guide piece 531 guide the lubricating oil to the first helical gear 51 and the second helical gear 6, so that the lubricating oil returns to the tooth trace of the first helical gear 51 and the second helical gear 6 to perform infiltration, and the lubricating oil gradually forms an oil film at the tooth trace of the first helical gear 51 and the second helical gear 6, thereby reducing the wear rate between the first helical gear 51 and the second helical gear 6, prolonging the service life to a certain extent, and correspondingly reducing the maintenance frequency and cost of the equipment.

[0034] The staff observes the flow of the lubricating oil on the first helical gear 51 and the second helical gear 6 in the speed reducer through the observation hole 11 on the top of the speed reducer, and controls the flow of the lubricating oil through the valve on the second oil supply branch pipe 31, and adjusts according to the flow of the lubricating oil on the first helical gear 51 and the second helical gear 6.

[0035] When the staff inspects the speed reducer, the staff connects the lifting hole 101 on the speed reducer through a crane or the like, lifts the upper shell 1 of the speed reducer, and then inspects the transmission mechanism 5 in the speed reducer.

[0036] The above-described embodiments are only preferred embodiments of the present application, and are not intended to limit the scope of the present application. Therefore, equivalent changes or modifications made according to the structure, features and principles of the present application should be included in the scope of the present application.

Claims

1. An anti-splashing device for lubricating oil of a gear set, provided above the gear set, the gear set comprising two mutually meshing gears, characterized in that, The anti-splashing device comprises two arc-shaped guide plates, the two guide plates are respectively located above two gears, the bottom of the guide plate is uniformly provided with a plurality of guide vanes perpendicular to the guide plate, a gap for lubricating oil to pass through exists between the two guide plates, and the axis of each guide plate coincides with the axis of the corresponding gear.

2. A splash guard for a gear set lubricating oil as defined in claim 1, wherein, The guide plate comprises a first guide plate (52) and two second guide plates (53), the two second guide plates (53) are fixedly connected to the two sides of the first guide plate (52), the guide vane comprises a plurality of first guide vanes (521) and a plurality of second guide vanes (531), the plurality of first guide vanes (521) are uniformly fixed to the bottom of the first guide plate (52), and the plurality of second guide vanes (531) are uniformly fixed to the bottom of the second guide plate (53).

3. A splash guard for a gear set lubricating oil as defined in claim 2, wherein, After the two side edges of the first guide plate (52) are connected with the second guide plate (53), an obtuse angle is formed between the top surface of the first guide plate (52) and the top surface of the second guide plate (53), thereby forming a channel for discharging lubricating oil.

4. A splash guard for a gear set lubricating oil as defined in claim 2, wherein, The width of the first guide plate (52) is smaller than the width of the gear, and the sum of the widths of the first guide plate (52) and the two second guide plates (53) is greater than the width of the gear.

5. A speed reducer comprising a housing and a power mechanism, a transmission mechanism (5) is arranged in the housing, the power mechanism drives the transmission mechanism (5) to rotate, characterized in that, The speed reducer further comprises a housing, an oil supply pipe (3) located outside the housing, and an anti-splashing device for lubricating oil of a gear set according to any one of claims 1-4, the transmission mechanism (5) comprises an input end (4) and an output end (9), and the input end (4) and the output end (9) are connected through a plurality of gear sets to realize transmission, the anti-splashing device is arranged on the gear set, a fixing rod (532) is fixed to the top of the guide plate, and the fixing rod (532) is fixed to the inner wall of the housing; A first oil supply branch pipe is arranged above each gear set, and the plurality of oil supply branch pipes are communicated with the oil supply pipe (3) after penetrating through the housing.

6. The speed reducer according to claim 5, wherein The housing comprises an upper housing (1) and a lower housing (2), the upper housing (1) and the lower housing (2) are spliced, the transmission mechanism (5) is located between the upper housing (1) and the lower housing (2), the transmission mechanism (5) further comprises a plurality of transmission shafts, the two gears of the gear set are sleeved on the transmission shafts, the transmission shafts are rotatably connected with the housing, and the transmission shafts realize transmission through gears.

7. The speed reducer according to claim 6, wherein The oil outlets of the first oil supply branch pipes are located above the meshing positions of the two gears of the gear set, a second oil supply branch pipe (31) is further arranged on the oil supply pipe (3), and the oil outlet of the second oil supply branch pipe (31) is located above the meshing position of the gear set on the transmission shaft connected with the input end (4).

8. The speed reducer according to claim 7, characterized by The gear set on the transmission shaft connected with the input end (4) comprises a first helical gear (51) and a second helical gear (6) meshing with the first helical gear (51), the anti-splashing device is arranged above the first helical gear (51) and the second helical gear (6), and the oil outlet of the second oil supply branch pipe (31) is located above the meshing position of the first helical gear (51) and the second helical gear (6).

9. The speed reducer according to claim 6, wherein An oil outlet pipe (12) is communicated with one side of the lower housing (2).

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