Automatic oil scooping lubrication mechanism for speed reducer, speed reducer and oil pumping unit

Abstract

The invention relates to the technical field of oil pumping units, and discloses an automatic oil scooping lubricating mechanism for a speed reducer, the speed reducer and the oil pumping unit. The automatic oil scooping and lubricating mechanism of the speed reducer comprises a machine shell and an oil tank used for containing lubricating oil. The transmission shaft assembly is arranged in the machine shell. The oil receiving assembly is arranged on the machine shell. The lubricating oil groove is formed in the machine shell and connected with the oil receiving assembly and the transmission shaft assembly. The oil scooping assembly comprises a plurality of oil scooping barrels which are arranged at equal intervals in the circumferential direction of the transmission shaft assembly. The oil scooping barrel is provided with a channel penetrating through the two sides in the axial direction of the oil scooping barrel, and a movable bottom plate is arranged in the channel and can move in the axial direction of the channel. Along with rotation of the transmission shaft assembly, the multiple oil scooping barrels bring lubricating oil in the oil pool to the oil receiving assembly, and the lubricating oil flows to the transmission shaft assembly through the lubricating oil grooves. The speed reducer comprises a speed reducer automatic oil scooping lubrication mechanism. The pumping unit comprises a speed reducer. According to the technical scheme, the technical problem that in the prior art, the oil scooping efficiency of an oil scooping barrel is low is solved.

Description

Technical Field

[0001] The invention relates to the technical field of oil pumping units, in particular to an automatic oil scooping lubrication mechanism for a reducer, a reducer and an oil pumping unit. Background Art

[0002] Pumping units are key equipment used to extract crude oil from oil wells during oil production. They are commonly found in onshore oil fields and offshore platforms. Their core function is to transmit surface power to the downhole pump, overcoming reservoir pressure and lifting crude oil to the surface.

[0003] The reducer is one of the core components of the oil pumping unit. It is used to transmit the power of the motor to the crank that drives the oil pumping unit to drive the crank to rotate. During the rotation of the crank, the walking beam of the oil pumping unit swings back and forth.

[0004] In order to ensure the normal use of the reducer, the existing reducer is provided with an oil scoop bucket on the shaft system. The rotation of the shaft system enables the oil scoop bucket to extract lubricating oil from the casing to lubricate the bearings. However, the existing oil scoop bucket has low oil scooping efficiency. Summary of the Invention

[0005] The present application discloses an automatic oil scooping lubrication mechanism for a reducer, a reducer and an oil pumping unit, so as to solve the technical problem of low oil scooping efficiency of an oil scooping bucket in the related art.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions: In a first aspect, the present application discloses an automatic oil scooping and lubrication mechanism for a reducer, comprising: a casing having an oil sump for containing lubricating oil; A transmission shaft assembly is disposed in the casing; An oil receiving assembly is provided on the casing; A lubricating oil tank is provided in the casing and is connected to the oil receiving assembly and the transmission shaft assembly; The oil scoop assembly includes a plurality of oil scoop barrels, which are arranged at equal intervals along the circumference of the transmission shaft assembly; the oil scoop barrels have channels running through both sides along the axial direction thereof, and a movable bottom plate is provided in the channel, and the movable bottom plate can move along the axial direction of the channel; As the transmission shaft assembly rotates, multiple oil scoop buckets bring the lubricating oil in the oil pool to the oil receiving assembly, and then flow to the transmission shaft assembly through the lubricating oil groove.

[0007] In some solutions, the transmission shaft assembly includes a low-speed shaft system and an intermediate shaft system, the low-speed shaft system is connected to the casing through a first bearing, and the intermediate shaft system is connected to the casing through a second bearing; Both ends of the lubricating oil groove lead to the first bearing and the second bearing respectively, and the oil scooping assembly is arranged on the low-speed shaft system and / or the intermediate shaft system.

[0008] In some solutions, the scoop barrel has a plurality of inwardly converging flaps on both sides of the axial direction to prevent the movable bottom plate from falling off.

[0009] In some solutions, the axial direction of the oil scoop is oblique to the radial direction of the low-speed shafting and / or the intermediate shafting; and / or, when the edge of the oil scoop bucket exceeds the edge of the oil receiving assembly, the axis of the oil scoop bucket and the oil receiving assembly form an angle; And / or, when the scoop bucket is immersed in the lubricating oil in the oil pool and has not moved to a certain position at the bottom of the low-speed shafting and / or the intermediate shafting, the axial direction of the scoop bucket is parallel to the inner bottom of the oil pool.

[0010] In some solutions, the casing is further provided with a mud discharge oil tank, one end of which is connected to the oil receiving assembly, and the other end of which is detachably connected to an oil receiving bottle.

[0011] In some solutions, the oil receiving assembly includes an oil receiving pan and a plurality of support frames, and the oil receiving pan is connected to the casing via the support frames; At least two of the support frames have ramps, one of which is communicated with the oil receiving pan and the lubricating oil tank, and one of which is communicated with the mud discharge oil tank.

[0012] In some embodiments, the oil pan has a first overflow pipe, the first overflow pipe is connected to one of the ramps, and the inlet of the first overflow pipe is located higher than the inner bottom of the oil pan; And / or, the oil receiving pan has a second overflow pipe, the second overflow pipe is communicated with one of the ramps, and an inlet of the second overflow pipe is arranged near the inner bottom of the first oil receiving pan.

[0013] In some solutions, the casing is provided with an overflow port, and the interior of the casing and an area near the top of the mud discharge oil tank are communicated through the overflow port.

[0014] In a second aspect, the present application discloses a reducer, comprising the automatic oil scooping and lubrication mechanism of the reducer in the first aspect.

[0015] In a third aspect, the present application discloses an oil pumping unit, comprising the reducer in the second aspect.

[0016] The technical solution adopted by the present invention can achieve the following beneficial effects: The automatic oil-scooping lubrication mechanism for the reducer of this application uses multiple oil-scooping barrels to carry lubricating oil from the oil pool to the oil receiving assembly as the drive shaft assembly rotates. The lubricating oil in the oil receiving assembly then flows through the lubricating oil groove to the drive shaft assembly, effectively lubricating the drive shaft assembly. The forced flow of lubricating oil continuously removes heat from the first and second bearings, making it particularly suitable for the heat dissipation requirements of the pumping unit under low-speed and heavy-load conditions, and avoiding the randomness of traditional splash lubrication. Simultaneously, as the movable base plate moves within the oil-scooping barrels, it scrapes away sludge accumulated within the barrels and discharges the sludge into the oil receiving assembly for storage, thereby ensuring that the channel is not clogged with sludge, thereby maintaining oil extraction and discharge efficiency to a certain extent and providing sufficient supply to the oil receiving assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 is an axonometric diagram of the automatic oil scooping and lubrication mechanism of the reducer disclosed in some embodiments of the present application; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 Enlarged view of point B in the middle; Figure 4 is a top view of the automatic oil scooping and lubrication mechanism of the reducer disclosed in some embodiments of the present application; Figure 5 yes Figure 4 Enlarged view of point C in the middle; Figure 6 yes Figure 4 Sectional view of the AA plane; Figure 7 yes Figure 4 Cross-sectional view of the middle BB surface; Figure 8 is a front view of a first gear and an oil scooping assembly disclosed in some embodiments of the present application; Figure 9 is a side view of the automatic oil scooping and lubrication mechanism of the reducer disclosed in some embodiments of the present application; Figure 10 yes Figure 9 Enlarged view of point D in the middle; Figure 11 The axonometric view of the housing disclosed in some embodiments of the present application Figure 1 ; Figure 12 The axonometric view of the housing disclosed in some embodiments of the present application Figure 2 ; Figure 13 It is an axonometric view of the oil pumping unit and the reducer disclosed in some embodiments of the present application.

[0019] In the picture: 100 - Automatic oil scooping and lubrication mechanism for reducer, 110 - Casing, 111 - Oil pool, 112 - Lubricating oil tank, 113 - Mud discharge tank, 114 - Overflow port, 115 - Oil supply tank, 116 - Through slot, 120 - Low-speed shafting, 121 - First gear, 122 - First bearing, 130 - Intermediate shafting, 131 - Second bearing, 140 - Oil receiving assembly, 141 - Oil receiving pan, 1411 - First overflow pipe, 1412 - Second overflow pipe, 142 - Support frame, 1421 - Ramp, 150 - Oil scooping assembly, 151 - Oil scooping barrel, 1511 - Flap, 152 - Movable bottom plate, 160 - High-speed shafting, 170 - Four-way valve, 171 - Oil receiving bottle, 172 - Valve; 200- reducer; 300-Oil pumping unit. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0021] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0022] To ensure the proper operation of the reducer, existing reducers are equipped with an oil scoop on the shaft system. The shaft system rotates, allowing the scoop to extract lubricating oil from the casing to lubricate the bearings. The scoop is typically designed with a grooved structure. As the scoop is repeatedly immersed in the oil pool, sludge gradually adheres to and accumulates within the scoop. This accumulated sludge takes up space originally intended for lubricating oil, significantly reducing the scoop's efficiency. Furthermore, during clockwise or counterclockwise rotation of the reducer, only part of the scoop is actively involved in the oil scooping process, resulting in inefficiency.

[0023] The following is combined with Figures 1 to 13 , an automatic oil scooping lubrication mechanism of a reducer 200, a reducer 200 and an oil pumping unit 300 provided in this application are described in detail through specific embodiments and application scenarios.

[0024] Some embodiments of the present application disclose an automatic oil scooping lubrication mechanism for a reducer 200 , including a housing 110 , a transmission shaft assembly, an oil receiving assembly 140 , and an oil scooping assembly 150 .

[0025] like Figure 6 As shown, the housing 110 has an oil pool 111 for storing lubricating oil. The oil pool 111 for storing lubricating oil is set in the housing 110, and the lubricating oil in the oil pool 111 is used to lubricate some parts of the reducer 200, eliminating the need for a separate oil tank outside, which helps to reduce the space occupied by the entire reducer 200.

[0026] The transmission shaft assembly is disposed in the housing 110. The transmission assembly is a component that transmits the motor torque. Part of the transmission shaft assembly is immersed in the lubricating oil in the oil pool 111. During the rotation of the transmission shaft assembly, splashes can be generated to initially lubricate some components in the housing 110.

[0027] like Figure 1 、 Figure 2 and Figure 8 As shown, the oil scoop assembly 150 includes multiple oil scoop barrels 151, which are spaced evenly along the circumference of the drive shaft assembly. The oil receiving assembly 140 is mounted on the housing 110. As the drive shaft assembly rotates, the oil scoop barrels 151 draw lubricating oil from the oil pool 111 to the oil receiving assembly 140 for storage. The oil scoop assembly 150 is powered by the rotation of the drive shaft assembly, eliminating the need for a separate power source. This reduces the number of components required for the lubrication mechanism, resulting in a simpler structure and a smaller size for the reducer 200.

[0028] like Figure 2As shown, the oil scoop barrel 151 has a channel extending axially through both sides thereof, and a movable base plate 152 is disposed within the channel. The movable base plate 152 is movable along the axial direction of the channel. By providing the movable base plate 152 within the oil scoop barrel 151, the centrifugal force and fluid pressure push the movable base plate 152 axially during clockwise or counterclockwise rotation of the drive shaft assembly. This allows each oil scoop barrel 151 to participate in the oil scooping operation, improving oil extraction efficiency, increasing the amount of oil extracted per unit time, accelerating circulation, and increasing heat dissipation efficiency, thereby ensuring a low failure rate for the drive shaft assembly.

[0029] Secondly, when the movable bottom plate 152 moves in the oil scooping barrel 151, the movable bottom plate 152 will scrape off the sludge accumulated in the oil scooping barrel 151 and discharge the sludge into the oil receiving assembly 140 for storage, thereby ensuring that the channel will not be blocked by the sludge, thereby maintaining the oil lifting efficiency and oil discharge efficiency to a certain extent, and supplying sufficient oil to the oil receiving assembly 140.

[0030] In addition, the scraper scrapes off the sludge and discharges it to the oil receiving assembly 140 for storage, thereby achieving self-cleaning of the lubricating oil in the oil pool 111 and preventing sludge accumulation.

[0031] Specifically, such as Figure 2 As shown, the oil scoop barrel 151 has a plurality of inwardly converging flaps 1511 on either side of the axial direction to prevent the movable bottom plate 152 from falling off. The inwardly converging flaps 1511 can restrict the movement of the movable bottom plate 152. Under the action of centrifugal force and fluid pressure, the movable bottom plate 152 moves axially until it abuts against the flaps 1511 and cannot move further, thereby preventing the movable bottom plate 152 from falling off the oil scoop barrel 151.

[0032] As a preferred embodiment of the present invention, the number of flaps 1511 on each axial side of the oil scoop barrel 151 is two.

[0033] like Figure 1 、 Figure 3 、 Figure 11 and Figure 12 As shown, the lubricating oil tank 112 is provided in the housing 110 and is connected to the oil receiving assembly 140 and the drive shaft assembly. As the drive shaft assembly rotates, multiple oil scoops 151 bring the lubricating oil in the oil pool 111 to the oil receiving assembly 140 and flow to the drive shaft assembly through the lubricating oil tank 112. The lubricating oil captured by the multiple oil scoops 151 is collected by the oil receiving assembly 140 and then directly transported to the friction pair interface of the drive shaft assembly through the lubricating oil tank 112 inside the housing 110, thereby effectively lubricating the drive shaft assembly. The forced flow of lubricating oil continuously removes the heat of the drive shaft assembly, which is particularly suitable for the heat dissipation requirements of the pumping unit 300 under low-speed and heavy-load conditions, avoiding the randomness of traditional splash lubrication.

[0034] like Figure 1 、 Figure 4 、 Figure 6 and Figure 7 As shown, the transmission shaft assembly includes a low-speed shaft system 120 and an intermediate shaft system 130. The low-speed shaft system 120 is connected to the housing 110 through a first bearing 122, and the intermediate shaft system 130 is connected to the housing 110 through a second bearing 131. The two ends of the lubricating oil groove 112 lead to the first bearing 122 and the second bearing 131 respectively, and the oil scooping assembly 150 is arranged on the low-speed shaft system 120 and / or the intermediate shaft system 130.

[0035] As the low-speed shafting 120 and / or the intermediate shafting 130 rotate, the oil scooping assembly 150 carries the lubricating oil from the oil pool 111 to the oil receiving assembly 140, where it flows through the lubricating oil groove 112 to the first bearing 122 and the second bearing 131. The lubricating oil captured by the oil scooping assembly 150 is collected by the oil receiving assembly 140 and then directly delivered to the friction pair interface of the first bearing 122 and the second bearing 131 through the lubricating oil groove 112 within the casing 110, thereby effectively lubricating the first bearing 122 and the second bearing 131. The forced flow of lubricating oil continuously removes heat from the first bearing 122 and the second bearing 131, specifically meeting the heat dissipation requirements of the pumping unit 300 under low-speed and heavy-load conditions, and avoiding the randomness of traditional splash lubrication.

[0036] Specifically, such as Figure 1 and Figure 8 As shown, the low-speed shafting 120 includes a first gear 121, and an oil scooping assembly 150 is disposed on the spokes of the first gear 121. By placing the oil scooping assembly 150 on the spokes of the first gear 121, it eliminates the need for other useful space, resulting in a more compact structure. Furthermore, during the rotation of the first gear 121, the oil scooping assembly 150 can also slap the lubricating oil, thereby enhancing the splashing effect, generating more oil mist, and improving the lubrication of other components.

[0037] The intermediate shaft system 130 has a second gear. As some alternatives to this embodiment, the oil scooping assembly 150 can also be provided on the spokes of the second gear, or the first gear 121 and the spokes of the second gear can be provided with the oil scooping assembly 150 at the same time.

[0038] In this embodiment, housing 110 is provided with bearing seats corresponding to positions of first bearing 122 and second bearing 131, respectively, to securely mount first bearing 122 and second bearing 131. The bearing seats have through-holes that communicate with oil reservoir 111, allowing lubricating oil that passes through first bearing 122 and second bearing 131 to return to oil reservoir 111, thereby replenishing the lubricating oil within oil reservoir 111.

[0039] In some embodiments, the reducer 200 is a single-stage reducer 200. In this case, the intermediate shafting 130 is the input end of the reducer 200 and is connected to the output shaft of the motor directly or through a coupling; the low-speed shafting 120 is the output end of the reducer 200 and directly drives the working machine through a coupling, a drive shaft, etc.

[0040] In some embodiments, the reducer 200 is a two-stage reducer 200, further comprising a high-speed shafting 160. The high-speed shafting 160 is the input end of the reducer 200 and is connected to the output shaft of the motor directly or through a coupling. The intermediate shafting 130 is located between the high-speed shafting 160 and the low-speed shafting 120, providing a transition and transmitting power. The low-speed shafting 120 is the output end of the reducer 200 and directly drives the working machine through a coupling, a drive shaft, and the like.

[0041] Accordingly, the diameter of the low-speed shafting 120 is greater than the diameter of the intermediate shafting 130 , and the size of the intermediate shafting 130 is greater than the size of the low-speed shafting 120 .

[0042] In this embodiment, the preferred embodiment employs a two-stage reducer 200. Compared to a single-stage reducer 200, a two-stage reducer 200 is more suitable for use in a pumping unit 300. While meeting the high output torque and low speed requirements of the pumping unit 300, it achieves a more compact structure, better gear force distribution, and higher overall efficiency. The two-stage reduction system shares the overall transmission ratio between the high-speed shafting 160 and the low-speed shafting 120, avoiding the oversized gears required to achieve the same speed ratio as a single-stage reduction system. This significantly reduces the size and weight of the reducer 200, making it easier to install and maintain at the wellsite. Furthermore, the transition of the intermediate shafting 130 allows the small gears of the high-speed shafting 160 to bear less torque, while the large gears of the low-speed shafting 120, despite bearing high torque, maintain a relatively manageable size. This design optimizes the bending strength and contact stress distribution of the gears, improving their load-bearing capacity and lifespan, making it more suitable for the long-term, heavy-load, and impact-prone operating conditions of the pumping unit 300.

[0043] In some embodiments, the oil scoop assembly 150 is disposed on the low-speed shafting 120 .

[0044] In some embodiments, the oil scoop assembly 150 is disposed on the intermediate shaft system 130 .

[0045] In some embodiments, the oil scoop assembly 150 is disposed on the low-speed shafting 120 and the intermediate shafting 130 .

[0046] Among them, this embodiment preferably adopts the solution in which the oil scooping assembly 150 is arranged on the low-speed shaft system 120. The low-speed shaft system 120 bears the maximum torque and has the lowest rotation speed, which is prone to high temperature and high pressure, and requires a more sufficient amount of lubricating oil. The linear speed of the low-speed shaft system 120 immersed in the oil pool 111 is relatively low, so that the oil scooping assembly 150 can more stably carry a sufficient amount of lubricating oil, avoiding oil splashing or oil stirring loss caused by excessive rotation speed of the intermediate shaft system 130. Secondly, the low-speed shaft system 120 has the largest diameter, which can provide a larger installation space and stronger support for the oil scooping assembly 150, avoiding vibration failure under high-speed rotation; at the same time, the low-speed shaft system 120 is located closer to the bottom of the oil pool 111, and the oil immersion depth is greater, ensuring that the oil scooping action is continuous and effective.

[0047] like Figure 8 As shown, the axial direction of the oil scoop barrel 151 is obliquely intersected with the radial direction of the low-speed shaft system 120 and / or the intermediate shaft system 130. By obliquely intersecting the axial direction of the oil scoop barrel 151 with the radial direction of the low-speed shaft system 120 and / or the intermediate shaft system 130, as shown in FIG. Figure 8 As shown by α in FIG, the oil scoop bucket 151 can pour more lubricating oil onto the oil receiving assembly 140 in a shorter time.

[0048] like Figure 8 As shown, when the edge of the oil scoop barrel 151 exceeds the edge of the oil receiving assembly 140, the axis of the oil scoop barrel 151 and the oil receiving assembly 140 have an angle. Figure 8 As shown by the auxiliary line O1 in FIG, the amount of sludge with poor fluidity received can be reduced, and the cleaning interval of the oil receiving assembly 140 can be increased.

[0049] like Figure 8 As shown, when the scoop barrel 151 is immersed in the lubricating oil in the oil pool 111 and has not moved to a certain position at the bottom of the low-speed shafting 120 and / or the intermediate shafting 130, the axial direction of the scoop barrel 151 is parallel to the inner bottom of the oil pool 111. By keeping the axial direction of the scoop barrel 151 parallel to the inner bottom of the oil pool 111 when the scoop barrel 151 is immersed in the lubricating oil in the oil pool 111 and has not moved to a certain position at the bottom of the low-speed shafting 120 and / or the intermediate shafting 130, as much lubricating oil as possible in the upper layer can be pumped out, thereby reducing the amount of impurities.

[0050] like Figure 5 、 Figure 11 and Figure 12As shown, the housing 110 is provided with a mud drain oil trough 113. One end of the mud drain oil trough 113 is connected to the oil receiving assembly 140, and the other end is detachably connected to the oil receiving bottle 171. The oil receiving assembly 140 includes an oil receiving pan 141 and multiple support brackets 142. The oil receiving pan 141 is connected to the housing 110 via the support brackets 142. At least two of the support brackets 142 have ramps 1421, one of which connects the oil receiving pan 141 and the lubricating oil trough 112, and one of which connects to the mud drain oil trough 113. The oil pan 141 is secured by a support frame 142. The oil scoop assembly 150 carries the lubricating oil from the oil pool 111 to the oil pan 141 for storage. Some of the lubricating oil flows through the lubricating oil trough 112 to the first bearing 122 and the second bearing 131, lubricating them. Another portion of the lubricating oil, carrying some sludge, flows through the sludge discharge trough 113 to the oil collection bottle 171 for storage. The clean lubricating oil then flows back into the housing 110, allowing the sludge within the housing 110 to be discharged without shutting down the machine. Furthermore, by observing the volume, color, and texture of the sludge within the oil collection bottle 171, the sludge content within the housing 110 can be visually assessed without shutting down or disassembling the equipment. Regularly recording sludge accumulation can also quantitatively assess the rate of lubricating oil contamination. Furthermore, the oil collection bottle 171 is detachable and replaceable, eliminating the need for downtime for replacement or cleaning, thus reducing operation time.

[0051] Correspondingly, the casing 110 is provided with a valve 172 corresponding to the mud discharge channel, and the valve 172 can be closed when the oil receiving bottle 171 needs to be replaced.

[0052] like Figure 9 and Figure 10 As shown, the end of the sludge drain tank 113, away from the oil receiving assembly 140, is connected to an oil receiving bottle 171 via a four-way valve 170. The other two ports of the four-way valve 170 are connected to the oil source and the interior of the casing 110, respectively. The four-way valve 170 switches the direction of oil flow, allowing for directional discharge of sludge to the oil receiving bottle 171 or replenishment of lubricating oil from the oil source, without requiring machine downtime. Furthermore, by integrating the functions of sludge draining, oil replenishment, and internal circulation, the four-way valve 170 simplifies the piping layout and reduces the risk of leakage.

[0053] like Figure 11 and Figure 12 As shown, the inner wall of casing 110 is provided with an oil addition groove 115. This groove 115 extends along the circumference of casing 110, and the end of groove 115 is connected to the interior of casing 110 via an oil filling hole. A through groove 116 is also provided on the inner wall of casing 110, corresponding to groove 115. Through groove 116 connects the area near the top of groove 115 with the interior of casing 110. Clean lubricating oil discharged from the mud discharge channel and lubricating oil replenished from the oil source enter the interior of casing 110 through the oil addition groove 115 and the oil filling hole.

[0054] Since newly added lubricating oil has a low temperature and high viscosity, it can significantly affect operating parts. Therefore, extending the oil addition groove 115 along the circumference of the housing 110 facilitates heat exchange between the high temperature within the housing 110 and the newly added lubricating oil. Providing a through groove 116 connects the oil addition groove 115 with the interior of the housing 110, further increasing heat exchange efficiency. The oil addition groove 115 can receive lubricating oil splashed from the housing 110, effectively exchanging heat with the newly added lubricating oil and ensuring that the lubricating oil flowing into the housing 110 maintains a certain temperature.

[0055] like Figure 11 and Figure 12 As shown, the end of the oil addition groove 115 extends to the area corresponding to the high-speed shaft system 160. By extending the end of the oil addition groove 115 to the area corresponding to the high-speed shaft system 160, the newly added lubricating oil flows through the oil addition groove 115 to the area of ​​the casing 110 corresponding to the high-speed shaft system 160, and then flows to the casing 110 corresponding to the area of ​​the low-speed shaft system 120. Since the low-speed shaft system 120 is small in size and the agitation is weak, the stratified flow of the preheated oil is maintained, which not only reduces heat loss but also reduces the risk of bubbles and oxidation caused by agitation in the oil. At the same time, when the new oil flows through the area corresponding to the high-speed bearing in the casing 110, it absorbs friction heat and heats up, and then slowly flows to the area corresponding to the low-speed bearing in the casing 110, avoiding the increase in viscous resistance caused by the cold oil directly contacting the low-temperature shaft system.

[0056] like Figure 5 As shown, the housing 110 is provided with an overflow port 114, and the interior of the housing 110 and the area near the top of the mud discharge oil tank 113 are connected through the overflow port 114. Since the mud discharge oil tank 113 is connected to the oil receiving bottle 171, the oil receiving bottle 171 is closed and cannot ensure the normal flow of lubricating oil. In order to prevent the lubricating oil from overflowing and thus being unable to collect the sludge, an overflow port 114 connected to the mud discharge oil tank 113 is provided to allow subsequent lubricating oil to overflow, ensuring that the lubricating oil can flow along the mud discharge oil tank 113 for a distance, creating an opportunity for sedimentation in the meantime, used to store some sludge, and allowing the sludge to slowly replace the clean lubricating oil in the bottle. When part of it is replaced, it can be seen from the transparent oil receiving bottle 171, and then it can be judged whether the engine oil should be increased or more attention should be paid to the operating condition of the bearings.

[0057] like Figure 3As shown, the oil pan 141 has a first overflow pipe 1411, which is connected to one of the ramps 1421. The inlet of the first overflow pipe 1411 is located higher than the inner bottom of the oil pan 141. By having the inlet of the first overflow pipe 1411 located higher than the inner bottom of the first oil pan 141, the oil sludge in the first oil pan 141 can be prevented from entering the lubricating oil tank 112 through the first overflow pipe 1411 to a certain extent, thereby ensuring the reliability of lubrication.

[0058] like Figure 3 As shown, the oil receiving pan 141 has a second overflow pipe 1412, which is connected to one of the ramps 1421. The inlet of the second overflow pipe 1412 is located near the inner bottom of the first oil receiving pan 141. Since the inlet of the second overflow pipe 1412 is located near the inner bottom of the first oil receiving pan 141, the oil sludge deposited at the bottom of the first oil receiving pan 141 can pass through the second overflow pipe 1412 and ultimately enter the oil collecting bottle 171, making it easier to observe the oil sludge in the first oil receiving pan 141.

[0059] Some embodiments of the present application also disclose a reducer 200, such as Figure 13 As shown, the reducer 200 includes an automatic oil scooping lubrication mechanism.

[0060] As a preferred embodiment of this invention, the reducer 200 is applied to the pumping unit 300 to adapt to the normal operation of the pumping unit 300 under vibration conditions. Of course, the reducer 200 is not limited to the pumping unit 300 and can also be applied to other equipment, such as crushers, gantry cranes, and road rollers.

[0061] Some embodiments of the present application also disclose an oil pumping unit 300, such as Figure 13 As shown, a reducer 200 is included.

[0062] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0063] Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in reverse order depending on the functions involved. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to certain examples may be combined in other examples.

[0064] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A reducer automatic oil scooping lubrication mechanism, characterized in that: include: a casing having an oil sump for containing lubricating oil; a transmission shaft assembly, disposed in the housing; An oil receiving assembly is provided on the casing; a lubricating oil tank, provided in the housing and connected to the oil receiving assembly and the transmission shaft assembly; An oil scoop assembly includes a plurality of oil scoop barrels, which are arranged at equal intervals along the circumference of the transmission shaft assembly; each oil scoop barrel has a channel extending axially through both sides thereof, wherein a movable bottom plate is provided in the channel and is movable along the axial direction of the channel; As the transmission shaft assembly rotates, the plurality of oil scoop buckets bring the lubricating oil in the oil pool to the oil receiving assembly, and the lubricating oil flows to the transmission shaft assembly through the lubricating oil groove.

2. The automatic oil scooping lubrication mechanism for a reducer according to claim 1 is characterized in that: The transmission shaft assembly includes a low-speed shaft system and an intermediate shaft system, wherein the low-speed shaft system is connected to the casing via a first bearing, and the intermediate shaft system is connected to the casing via a second bearing; Both ends of the lubricating oil groove lead to the first bearing and the second bearing respectively, and the oil scooping assembly is arranged on the low-speed shafting and / or the intermediate shafting.

3. The automatic oil scooping lubrication mechanism for a reducer according to claim 1 is characterized in that: The two axial sides of the oil scoop barrel are respectively provided with a plurality of inwardly gathered flaps to prevent the movable bottom plate from falling off.

4. The automatic oil scooping and lubrication mechanism for a reducer according to claim 1, characterized in that: The axial direction of the oil scoop is obliquely intersected with the radial direction of the low-speed shaft system and / or the intermediate shaft system; and / or, when the edge of the oil scoop bucket exceeds the edge of the oil receiving assembly, the axis of the oil scoop bucket and the oil receiving assembly form an angle; And / or, when the oil scoop bucket is immersed in the lubricating oil in the oil pool and has not moved to a certain position at the bottom of the low-speed shaft system and / or the intermediate shaft system, the axial direction of the oil scoop bucket is parallel to the inner bottom of the oil pool.

5. The automatic oil scooping and lubrication mechanism for a reducer according to claim 1 is characterized in that: The casing is further provided with a mud discharge oil tank, one end of which is communicated with the oil receiving assembly, and the other end of which is detachably connected to an oil receiving bottle.

6. The automatic oil scooping and lubrication mechanism for a reducer according to claim 5, characterized in that: The oil receiving assembly includes an oil receiving pan and a plurality of support frames, and the oil receiving pan is connected to the casing through the support frames; At least two of the support frames have ramps, one of which is connected to the oil receiving pan and the lubricating oil tank, and one of which is connected to the mud discharge oil tank.

7. The automatic oil scooping and lubrication mechanism for a reducer according to claim 6, characterized in that: The oil receiving pan has a first overflow pipe, the first overflow pipe is connected to one of the ramps, and the inlet position of the first overflow pipe is higher than the inner bottom of the oil receiving pan; And / or, the oil receiving pan has a second overflow pipe, the second overflow pipe is communicated with one of the ramps, and an inlet of the second overflow pipe is arranged close to the inner bottom of the first oil receiving pan.

8. The automatic oil scooping and lubrication mechanism for a reducer according to claim 5, characterized in that: The casing is provided with an overflow port, and the interior of the casing and the area near the top of the mud discharge oil tank are communicated through the overflow port.

9. A reducer, characterized in that: The invention comprises the automatic oil scooping and lubrication mechanism of the reducer according to any one of claims 1 to 8.

10. A pumping unit, characterized in that: Including the reducer according to claim 9.

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