A device that allows the bearings at both ends of the reducer input shaft to obtain sufficient lubricating oil

Abstract

The present invention discloses a device for providing sufficient lubricating oil to the bearings at both ends of the input shaft of a speed reducer. The device comprises a mounting portion and a flow collecting and distributing portion. The mounting portion is mounted on a housing on one side of the speed reducer. The flow collecting and distributing portion comprises an intercepting plate, a flow collecting trough, and a flow distributing component. The ends of the flow collecting trough respectively have a left oil outlet and a right oil outlet flowing to the left bearing position and the right bearing position. The intercepting plate intercepts sufficient splashing lubricating oil and allows the splashing lubricating oil to flow into the flow collecting trough. The flow distributing component distributes the lubricating oil in the flow collecting trough to the left bearing position and the right bearing position. The device has the advantages of ensuring that the front and rear bearing positions of the input shaft can obtain sufficient lubricating oil when the vehicle is traveling in a curve, and preventing the lubricating oil supply to at least one bearing position from being cut off. The device rationally utilizes the components of centrifugal force, vibration, gravity, or the impact force of splashing lubricating oil, so that the oil distribution can be completed automatically.

Description

Technical Field

[0001] The invention relates to a device for enabling bearings at both ends of an input shaft to obtain sufficient lubricating oil, and belongs to the technical field of reducer lubrication. Background Art

[0002] The reducer for new energy electric vehicles is a three-in-one speed reducer, combining a motor, a speed reducer, and a differential. The input shaft within the reducer is typically directly connected to the motor shaft via a spline, or the input and motor shafts are co-axial. The input shaft has bearings mounted on both the front and rear housings of the reducer. Depending on the reducer's installation method on the electric vehicle, the front input bearing and the rear input bearing are located on the left and right sides of the vehicle, respectively. In addition to the input shaft, the reducer also contains a main reduction gear shaft and an output shaft, each with its own bearings mounted on the front and rear housings. Lubrication of all gears and bearings within the reducer primarily relies on the rotation of the main reduction gear, which stirs up the lubricating oil accumulated at the bottom of the reducer, creating splash oil. Some of the splash oil falls directly onto the gears, lubricating them, while some falls into oil channels built into the walls of the front and rear housings. Through these channels, it is directed to the bearings of each drive shaft, providing lubrication for the bearings.

[0003] In recent years, with the lightweighting of new energy electric drives, duty cycle requirements have become increasingly higher. Electric drive motors have developed towards high speeds, and reducer bearings have run at higher speeds, especially input shaft bearings, which have increased from several thousand revolutions per minute to more than 12,000 revolutions per minute. This has put forward higher requirements for lubrication. It is necessary to lubricate the bearings with sufficient splash lubricating oil to improve the bearing lubrication effect. At the same time, it is necessary to reduce the heat generated by the bearings and take away the heat generated by the bearings through flowing lubricating oil.

[0004] With the development of road traffic, road conditions are getting better and better. The roads with many bends in suburban and rural areas, especially the continuous winding roads in mountainous areas, have been hardened. The speed of vehicles traveling on the bends has increased. The lubricating oil accumulated at the bottom of the reducer, the splashing lubricating oil and the lubricating oil entering the oil channel will overflow or splash to the outside of the bend under the action of the centrifugal force formed when driving fast on the bend, resulting in excess oil supply to the bearings on the outside of the bend in the reducer and insufficient oil supply to the bearings on the inside of the bend. If the vehicle enters a bend with continuous turns in the same direction, the bearings on the inside of the reducer will be insufficiently supplied with oil for a long time, which will inevitably result in varying degrees of wear and erosion of the bearings, shortening the service life of the bearings.

[0005] On the other hand, the main reduction gear that plays the main role in splashing in the reducer is the helical gear. When the main reduction gear rotates, the lubricating oil stirred up will flow along the helical gear to one side of the reducer, which will also cause the splashing lubricating oil to be more on one side of the reducer and less on the other side, resulting in insufficient oil supply to the bearing on the side with less splashing lubricating oil.

[0006] In summary, the design of the housing oil channel and the splash lubrication oil guide structure is becoming increasingly difficult. The traditional method of designing oil guide ribs in the housing cavity and cutting grooves in the bearing mounting holes can no longer fully meet the lubrication requirements of the front and rear bearings of the input shaft.

[0007] Searching for "(reducer or gearbox) AND input shaft AND bearing AND splash AND lubrication" yields numerous patent documents related to reducer oil channel configurations, but none of them effectively address the aforementioned issues. Because the references differ significantly from the issues addressed and the specific solutions in this application, we will not list them all here for comparison. Summary of the Invention

[0008] The technical problem to be solved by the present invention is: how to ensure that the bearings at both ends of the reducer input shaft can obtain sufficient lubricating oil regardless of whether the vehicle is traveling forward on a curved section or a straight section.

[0009] In view of the above problems, the technical solution proposed by the present invention is:

[0010] A device for providing sufficient lubricating oil to the bearings at both ends of a reducer input shaft, comprising a mounting portion and a collecting and distributing portion, wherein the mounting portion is mounted on a housing on one side of the reducer, the collecting and distributing portion comprises an intercepting plate, a collecting trough and a flow distribution component, the two ends of the collecting trough respectively comprising a left oil outlet and a right oil outlet flowing to the left bearing position and the right bearing position, the intercepting plate intercepts sufficient splashing lubricating oil and allows the splashing lubricating oil to flow into the collecting trough, and the flow distribution component distributes the flow of the lubricating oil in the collecting trough to the left bearing position and the right bearing position.

[0011] Furthermore, the intercepting plate stands sideways in the collecting trough, dividing the collecting trough into a forward-rotating collecting trough and a reverse-rotating collecting trough.

[0012] Furthermore, a flow distribution adjustment section is provided in the left area of ​​the middle part of the forward-rotating collecting trough, and a flow distribution reference point is set in the middle of the flow distribution adjustment section. The flow distribution component includes a flow distribution block provided in the flow distribution adjustment section and capable of sliding left and right in the flow distribution adjustment section by relying on centrifugal force. The forward-rotating collecting trough is divided into a forward-rotating left collecting trough and a forward-rotating right collecting trough by the flow distribution block.

[0013] Furthermore, the bottom surface of the flow distribution adjustment section of the forward-turning collecting trough is concave in an arc shape to form an arc-shaped bottom surface of the trough. The arc-shaped bottom surface is divided into a left arc slope surface of the trough bottom and a right arc slope surface of the trough bottom at the lowest point in the middle. The lowest point is the flow distribution reference point. When the vehicle is traveling on a straight road section, it is affected by gravity and the flow distribution block is located at the flow distribution reference point.

[0014] Furthermore, the bottom end surface of the flow distribution block is an arc-shaped bottom end surface that matches the arc-shaped surface of the groove bottom.

[0015] Furthermore, the intercepting plate is provided with a vertical left limiting ridge and a right limiting ridge for limiting the sliding range of the flow distribution block within the flow distribution adjustment section, as well as an arc-shaped vertical limiting ridge for preventing the flow distribution block from jumping upward.

[0016] Furthermore, in the flow distribution adjustment section of the forward-turning collecting trough, a horizontal curved depression is made according to the splashing direction of the splashing lubricating oil when the vehicle is moving forward, so that the interception plate follows to form an interception plate curved surface section, and the flow distribution reference point is located in the vertex area of ​​the interception plate curved surface section. The flow distribution block has a rain sail that is higher than the forward-turning collecting trough. When the vehicle is traveling on a straight road section, the rain sail is subjected to the impact force of the splashing lubricating oil to form a component force toward the flow distribution reference point, causing the flow distribution block biased to the left or right side to slide toward the flow distribution reference point to the area located at the flow distribution reference point.

[0017] Furthermore, the horizontal cross-section of the rain sail is V-shaped, and the left and right sides respectively have inclined surfaces that can intersect at the front to withstand splashing lubricating oil. The left inclined surface is the left oil receiving surface, and the right inclined surface is the right oil receiving surface.

[0018] Furthermore, the flow distribution component includes a reverse flow guarantee block, which is fixed in the middle area of ​​the reverse collecting trough to separate the reverse collecting trough into a reverse left collecting trough and a reverse right collecting trough.

[0019] Furthermore, the mounting portion is a tubular mounting body located on the left side of the collecting and distributing portion, and the tube hole of the tubular mounting body is communicated with the left oil outlet of the collecting tank. Beneficial effects

[0020] 1. When the vehicle is traveling in a curve, it can ensure that the left bearing (commonly known as the front bearing) and the right bearing (commonly known as the rear bearing) of the input shaft can obtain sufficient lubricating oil supply, and at least one bearing will not be cut off from the lubricating oil supply;

[0021] 2. Reasonable use of centrifugal force, vibration, gravity or splashing lubricant impact force enables automatic distribution of splashing lubricant oil when the vehicle is moving forward on a curved or straight road;

[0022] 3. The structure is simple and easy to make and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a partial cross-sectional schematic diagram of the reducer;

[0024] Figure 2 for Figure 1 A partial schematic diagram of

[0025] Figure 3 is a schematic top view of the device described in Example 1;

[0026] Figure 4 is a three-dimensional schematic diagram of the device described in Example 1;

[0027] Figure 5 This is a three-dimensional schematic diagram of the flow distribution and adjustment block described in Example 1;

[0028] Figure 6 This is a three-dimensional schematic diagram of the device according to the first embodiment, showing that the flow distribution and adjustment section of the forward-rotating oil collecting tank is concave in an arc shape;

[0029] Figure 7 This is a three-dimensional schematic diagram of the device according to Example 1, showing that the flow distribution adjustment section of the forward-rotating oil sump is concave in an arc shape, and the flow distribution adjustment block has slid to the right;

[0030] Figure 8 It is a three-dimensional schematic diagram of the device described in Example 2;

[0031] Figure 9 for Figure 8 Another state diagram of the device shown, showing that the flow distribution block has slid to the right and the right oil collection tank has been shortened;

[0032] Figure 10 This is a three-dimensional schematic diagram of the flow distribution block described in Example 2;

[0033] Figure 11 for Figure 9 A force analysis diagram of the flow distribution block subjected to the impact of splashing lubricating oil in the "unloaded" state shows: F1 is the impact force of splashing lubricating oil on the right oil-receiving surface 3022 of flow distribution block 3; F2 is the impact force of splashing lubricating oil on the left oil-receiving surface 3021 of flow distribution block 3; F is the combined force of F1 and F2 acting on flow distribution block 3; and F3 is the component of force F generated by F that causes flow distribution block 3 to slide back toward the left flow distribution reference point 2031. When the vehicle turns left, and the rightward centrifugal force generated by flow distribution block 3 is less than the leftward component of force F3 from the impact of splashing lubricating oil on flow distribution block 3, flow distribution block 3 will slide back toward the left flow distribution reference point 2031.

[0034] In the figure: 1. interceptor plate; 101. interceptor plate curved surface section; 2. collecting trough; 201. forward collecting trough; 2011. forward left collecting trough; 2012. forward right collecting trough; 202. reverse collecting trough; 2021. reverse left collecting trough; 2022. reverse right collecting trough; 203. flow distribution adjustment section; 2031. flow distribution reference point; 204. left oil outlet; 205. right oil outlet; 206. trough bottom arc surface; 2061. trough bottom left arc slope; 2062. trough bottom right arc slope; 3. flow distribution Matching block; 301, curved bottom end surface; 302, rain sail; 3021, left oil receiving surface; 3022, right oil receiving surface; 4, left limiting rib; 5, right limiting rib; 6, vertical limiting rib; 7, reverse flow assurance block; 8, tubular mounting body; 801, pipe hole; 9, limiting pressure plate; 10, reducer; 1001, front housing; 1002, rear housing; 1003, main reduction gear; 1004, input shaft; 1005, left bearing seat; 1006, right bearing seat; 1007, mounting hole; 1008, flow channel hole. DETAILED DESCRIPTION

[0035] To facilitate understanding of the present invention, the reducer involved in this application is briefly described below with reference to the accompanying drawings.

[0036] like Figure 1 、 2 As shown, the reducer 10 involved in this application is a new energy electric vehicle reducer 10, integrated with a motor and a differential. The input shaft 1004 within the reducer 10 is typically directly connected to the motor shaft via a spline, or the input shaft 1004 and the motor shaft are co-axial. The input shaft 1004 has bearings on both the front housing 1001 and the rear housing 1002 of the reducer 10. The location where the input shaft bearing is mounted on the front housing 1001 is called the front bearing position of the input shaft 1004. Lubrication of the input shaft bearing in the front housing is described in this application only for the front bearing position; the location where the input shaft bearing is mounted on the rear housing 1002 is called the rear bearing position of the input shaft 1004. Lubrication of the input shaft bearing in the rear housing is described in this application only for the rear bearing position. In addition to the input shaft 1004, the reducer 10 also includes a main reducer gear shaft and an output shaft, each of which has its own bearings mounted on the front housing 1001 and rear housing 1002. This application does not cover this. The lubrication of all gears and bearings in the reducer 10 mainly relies on the rotation of the main reduction gear 1003 in the reducer 10 to stir the lubricating oil accumulated at the bottom of the reducer to splash and form splashing lubricating oil. Part of the splashing lubricating oil directly splashes on the gears to lubricate the gears, and part of the splashing lubricating oil falls into the oil channels constructed on the walls of the front housing 1001 and the rear housing 1002 in the reducer 10, and is introduced into the bearing positions of each transmission shaft through the oil channels to supply oil and lubrication to each bearing.

[0037] According to the installation method of the speed reducer 10 on the electric vehicle, the front housing 1001 and the rear housing 1002 are respectively located on the left and right sides of the vehicle. For the convenience of description and illustration, in this application, the front bearing position of the input shaft 1004 is defined as the left bearing position 1005, and the rear bearing position of the input shaft 1004 is defined as the right bearing position 1006.

[0038] The present invention will be further described below with reference to the embodiments and accompanying drawings: Example 1

[0039] like Figure 2 As shown in FIG. 7 , a device for providing sufficient lubricating oil to the bearings at both ends of the input shaft of a speed reducer comprises a mounting portion and a flow collecting and distributing portion. The mounting portion is mounted on a housing on one side of the speed reducer. The flow collecting and distributing portion comprises an intercepting plate 1, a flow collecting trough 2, and a flow distributing component. The flow collecting trough 2 has a left oil outlet 204 and a right oil outlet 205 at both ends thereof, which flow to the left bearing position 1005 and the right bearing position 1006, respectively. The intercepting plate 1 intercepts sufficient splashing lubricating oil and allows the splashing lubricating oil to flow into the flow collecting trough 2. The flow distributing component distributes the lubricating oil in the flow collecting trough 2 to the left bearing position 1005 and the right bearing position 1006. The intercepting sufficient lubricating oil means that the intercepted lubricating oil can simultaneously meet the lubrication needs of the bearings in the left bearing position 1005 and the right bearing position 1006. In this way, no matter whether the vehicle is traveling forward on a curved section or a straight section, the sufficient lubricating oil intercepted and obtained in the collecting tank 2 is distributed through the flow distribution component, so that the left bearing position 1005 (commonly called the front bearing position) and the right bearing position 1006 (commonly called the rear bearing position) of the input shaft 1004 in the reducer can obtain sufficient lubricating oil.

[0040] Preferably, the interception plate 1 is placed sideways in the manifold 2, dividing the manifold 2 into a forward manifold 201 and a reverse manifold 202. This not only solves the oil supply problem for the left bearing 1005 and the right bearing 1006 during forward travel, but also, when reversing, the main reduction gear is reversed, and the splashing lubricating oil is intercepted by the other side of the interception plate 1 and flows into the reverse manifold 202, thereby solving the oil supply problem for the left bearing 1005 and the right bearing 1006 of the input shaft.

[0041] A flow distribution and adjustment section 203 is provided in the middle left region of the forward-rotating collecting trough 201, and a flow distribution reference point 2031 is provided in the middle of the flow distribution and adjustment section 203. The flow distribution component includes a flow distribution block 3 provided in the flow distribution and adjustment section 203 and capable of sliding left and right within the flow distribution and adjustment section 203 by centrifugal force. The forward-rotating collecting trough 201 is divided into a forward-rotating left collecting trough 2011 and a forward-rotating right collecting trough 2012 by the flow distribution block 3. The bottom surface of the flow distribution and adjustment section 203 of the forward-rotating collecting trough 201 is arc-shaped and concave, forming a bottom arc surface 206. The bottom arc surface 206 is divided into a bottom left arc slope surface 2061 and a bottom right arc slope surface 2062 at the lowest point in the middle. The lowest point is the flow distribution reference point 2031. When the vehicle is traveling on a straight road section, under the action of gravity, the flow distribution block 3 is located at the flow distribution reference point 2031. The following uses the example of a vehicle traveling forward on a left-hand curve and then transitioning from a left-hand curve to straight-ahead travel to illustrate the working principle of the above arrangement. When the vehicle travels forward on a left-hand curve, the centrifugal force generated by the vehicle is directed to the right. This centrifugal force causes the splashing lubricating oil stirred up by the main reduction gear, which is rotating forward at a relatively high speed, to deflect toward the right side of interceptor plate 1, resulting in more lubricating oil being intercepted on the right side and less on the left side. Simultaneously, due to the centrifugal force, the lubricating oil within the forward-rotating collecting trough 201 also flows rightward, resulting in excess oil being supplied to the right bearing 1006 and insufficient oil being supplied to the left bearing 1005. The flow distribution block 3 is provided in the forward manifold 201. Firstly, the flow distribution block 3 blocks the lubricating oil in the forward left manifold 2011 from flowing into the forward right manifold 2012. Secondly, the flow distribution block 3 is caused to slide rightward following the rightward deviation of the splashing lubricating oil by utilizing centrifugal force, thereby shortening the length of the forward right manifold 2012 and lengthening the length of the forward left manifold 2011. This ensures that the lubricating oil that splashes excessively onto the right side of the interceptor plate 1 still enters the forward left manifold 2011. This ensures that when the vehicle is traveling forward on a left-turning curve, both the left bearing 1005 and the right bearing 1006 receive sufficient splashing lubricating oil. Similarly, when the vehicle is traveling forward on a right-turning curve, both the left bearing 1005 and the right bearing 1006 receive sufficient splashing lubricating oil. When the vehicle enters straight-line travel, gravity and vehicle vibrations cause flow distribution block 3, which has slid left or right on the left and right curved slopes 2061 and 2062 of the trough bottom, to automatically return to its lowest point, flow distribution reference point 2031, when centrifugal force decreases or is released. Flow distribution reference point 2031 is the demarcation point where both the forward-rotating left manifold 2011 and forward-rotating right manifold 2012 can intercept sufficient splashing lubricating oil when the vehicle is traveling in a straight line and no centrifugal force is generated to either side. In this state, flow distribution block 3 is located in the area of ​​flow distribution reference point 2031.The flow distribution adjustment section 203 limits the left and right sliding range of the flow distribution block 3, preventing persistent centrifugal force from causing the flow distribution block 3 to slide outside the effective adjustment range, resulting in over-adjustment and imbalance. Because the teeth of the main reduction gear are helical, the normal design tilt direction causes the amount of oil splashing to be greater on the left side during forward rotation. Therefore, the flow distribution adjustment section 203 is located in the center-left area of ​​the forward flow collecting tank 201. If the tilt direction of the main reduction gear teeth causes the amount of oil splashing to be greater on the right side during forward rotation, the flow distribution adjustment section 203 is located in the center-right area of ​​the forward flow collecting tank 201.

[0042] The bottom end face of the flow distribution block 3 is an arc-shaped bottom end face 301 that matches the arc-shaped surface 206 of the groove bottom. The arc-shaped bottom end face 301 of the flow distribution block 3 is pressed together with the arc-shaped surface 206 of the groove bottom, and their relative sliding is lubricated by the existing splashing lubricating oil in the groove.

[0043] The intercepting plate 1 is provided with vertical left and right limiting ridges 4 and 5 that restrict the sliding range of the flow distribution block 3 within the flow distribution adjustment section 203, as well as an arc-shaped vertical limiting ridge 6 that prevents the flow distribution block 3 from jumping upward. The limiting ridges can be fixed to the intercepting plate 1 by welding or other means after the flow distribution block 3 is first installed in the forward-rotating manifold.

[0044] The flow distribution component also includes a reverse flow guarantee block 7. Since high-speed turns are not encountered during reversing, there is no centrifugal force that could deflect the splashing lubricating oil. Therefore, there is no need for the reverse flow guarantee block 7 to slide left or right for flow adjustment. Therefore, the reverse flow guarantee block 7 can be fixed in the middle of the reverse manifold 202, dividing the reverse manifold 202 into a reverse left manifold 2021 and a reverse right manifold 2022.

[0045] The mounting portion is a tubular mounting body 8 located to the left of the manifold and distribution section. A tube hole 801 of the tubular mounting body 8 communicates with the left oil outlet 204 of the manifold 2. The application involves providing a mounting hole 1007, which mates with the tubular mounting body 8, on the front housing 1001 above the input shaft 1004. A flow channel hole 1008 is provided between the mounting hole 1007 and the left bearing seat 1005. Inserting the tubular mounting body 8 into the mounting hole completes the secure installation of the entire device. Example 2

[0046] like Figure 2 、 89, 10, and 11, differ from the first embodiment in that the flow distribution regulating section 203 of the forward-rotating manifold 201 is formed into a horizontal curved depression in the direction of splashing lubricating oil when the vehicle is moving forward, so that the interception plate 1 follows the flow distribution regulating section 203 to form the interception plate curved section 101. The flow distribution reference point 2031 is located at the vertex of the interception plate curved section 101. The flow distribution block 3 has a rain sail 302 that is higher than the forward-rotating manifold 201. When the vehicle is traveling on a straight road, the impact force of the splashing lubricating oil on the rain sail 302 creates a component of force toward the flow distribution reference point 2031, causing the flow distribution block 3 deviating to the left or right to slide toward the flow distribution reference point 2031 to the area located at the flow distribution reference point 2031. The horizontal cross-section of the rain sail 302 is V-shaped, with two inclined surfaces on each side that intersect at the front to receive splashing lubricating oil. The left inclined surface is the left oil receiving surface 3021, and the right inclined surface is the right oil receiving surface 3022. The operating principle of the above arrangement is the same as in the previous embodiment: flow distribution block 3 can slide left or right under the action of centrifugal force, regulating the flow of lubricating oil between the forward-rotating left manifold 2011 and the forward-rotating right manifold 2012. The main difference is that when a vehicle enters a straight section from a curved section, the flow distribution block 3 returns to the flow distribution reference point 2031 by utilizing the impact force of splashing lubricating oil on the rain sail. A detailed analysis is as follows:

[0047] like Figure 11 The figure shows a force analysis diagram of flow distribution block 3 after it slides rightward. F1 is the impact force of splashing lubricating oil on the right oil-receiving surface 3022 of flow distribution block 3, F2 is the impact force of splashing lubricating oil on the left oil-receiving surface 3021 of flow distribution block 3, F is the combined force of F1 and F2 acting on flow distribution block 3, and F3 is the component of force generated by F that causes flow distribution block 3 to slide back toward the left flow reference distribution point 2031. When the vehicle turns left, and the rightward centrifugal force generated by flow distribution block 3 becomes less than the leftward component of force F3 of the splashing lubricating oil's impact on flow distribution block 3, flow distribution block 3 slides back toward the left flow distribution reference point 2031.

[0048] In addition, the above-mentioned arrangement of the left oil receiving surface 3021 and the right oil receiving surface 3022 has the following further effects: Figure 9 、 11As shown, after the flow distribution block 3 slides to the right on the concave arc-shaped intercepting plate curved surface section 101, the right oil receiving surface 3022 is gradually turned to the direction of the splashing lubricating oil through arc sliding, thereby making the oil receiving amount of the right oil receiving surface 3022 greater than the oil receiving amount of the left oil receiving surface 3021, and the right oil receiving surface 3022 is subjected to the impact force F1 of the splashing lubricating oil, so that the flow distribution block 3 obtains a larger component force F3 to reset to the flow distribution reference point 2031; after the flow distribution block 3 slides to the left on the concave arc-shaped flow distribution adjustment section 203, the left oil receiving surface 3021 is gradually turned to the direction of the splashing lubricating oil through arc sliding, thereby making the oil receiving amount of the left oil receiving surface 3021 greater than the oil receiving amount of the right oil receiving surface 3022, and the left oil receiving surface 3021 is subjected to the impact force F2 of the splashing lubricating oil, so that the flow distribution block 3 obtains a larger component force F3 to reset to the flow distribution reference point 2031.

[0049] A limiting pressure plate 9 is provided on the upper side of the intercepting plate 1 and is close to the upper top surface of the rain sail 302 for guiding and limiting the flow distribution block 3. Its function is to prevent the flow distribution block 3 from jumping upwards.

[0050] The above embodiments are only used to more clearly describe the present invention and cannot be regarded as limiting the scope of protection covered by the present invention. Any modifications in equivalent forms should be regarded as falling within the scope of protection covered by the present invention.

Claims

1. A device for providing sufficient lubricating oil to the bearings at both ends of the reducer input shaft, characterized in that: The invention comprises a mounting portion and a flow collecting and distributing portion, wherein the mounting portion is mounted on a housing on one side of the reducer, and the flow collecting and distributing portion comprises an intercepting plate (1), a flow collecting groove (2) and a flow distributing component, wherein the two ends of the flow collecting groove (2) respectively comprise a left oil outlet (204) and a right oil outlet (205) flowing to a left bearing position (1005) and a right bearing position (1006), wherein the intercepting plate (1) intercepts a sufficient amount of splashing lubricating oil and allows the splashing lubricating oil to flow into the flow collecting groove (2), and the flow distributing component distributes the flow of the lubricating oil in the flow collecting groove (2) to the left bearing position (1005) and the right bearing position (1006); the intercepting plate (1) stands sideways in the flow collecting groove (2) to separate the flow collecting groove (2) into a forward flow collecting groove (201) and a reverse flow collecting groove (202); a flow distribution regulating section (203) is provided in the left area of ​​the middle of the forward flow collecting groove (201), and a flow distribution regulating section (203) is provided in the flow distribution regulating section. A flow distribution reference point (2031) is provided in the middle of the segment (203), and the flow distribution component comprises a flow distribution block (3) provided in the flow distribution regulating section (203) and capable of sliding left and right in the flow distribution regulating section (203) by means of centrifugal force. The forward-rotating collecting trough (201) is divided into a forward-rotating left collecting trough (2011) and a forward-rotating right collecting trough (212) by the flow distribution block (3); the bottom surface of the flow distribution regulating section (203) of the forward-rotating collecting trough (201) is arc-shaped and concave to form a bottom arc surface (206), and the bottom arc surface (206) is divided into a bottom left arc slope surface (2061) and a bottom right arc slope surface (2062) at the lowest point in the middle, and the lowest point is the flow distribution reference point (2031). When a vehicle travels on a straight road section, the flow distribution block (3) is located at the flow distribution reference point (2031) under the action of gravity.

2. The device for providing sufficient lubricating oil to the bearings at both ends of the reducer input shaft according to claim 1, characterized in that: The bottom end surface of the flow distribution block (3) is an arc-shaped bottom end surface (301) that matches the arc-shaped surface (206) of the groove bottom.

3. The device for providing sufficient lubricating oil to the bearings at both ends of the reducer input shaft according to claim 2, characterized in that: The intercepting plate (1) is provided with a vertical left limiting ridge (4) and a right limiting ridge (5) for limiting the sliding range of the flow distribution block (3) within the flow distribution adjustment section (203), and an arc-shaped vertical limiting ridge (6) for preventing the flow distribution block (3) from jumping upward.

4. The device for providing sufficient lubricating oil to the bearings at both ends of the reducer input shaft according to claim 1, characterized in that: In the flow distribution regulating section (203) of the forward-rotating collecting trough (201), a horizontal curved depression is made according to the splashing direction of the splashing lubricating oil when the vehicle is traveling forward, so that the interception plate (1) follows to form the interception plate curved section (101), and the flow distribution reference point (2031) is located at the vertex area of ​​the interception plate curved section (101). The flow distribution block (3) has a rain sail (302) that is higher than the forward-rotating collecting trough (201). When the vehicle is traveling on a straight road section, the rain sail (302) is subjected to the impact force of the splashing lubricating oil to form a component force toward the flow distribution reference point (2031), so that the flow distribution block (3) deviated to the left or right side slides toward the flow distribution reference point (2031) to the area located at the flow distribution reference point (2031).

5. The device for providing sufficient lubricating oil to the bearings at both ends of the reducer input shaft according to claim 4, characterized in that: The horizontal cross-section of the rain sail (302) is V-shaped, and the left and right sides respectively have inclined surfaces that can intersect at the front to receive splashing lubricating oil, the left inclined surface being the left oil receiving surface (3021), and the right inclined surface being the right oil receiving surface (3022).

6. The device for providing sufficient lubricating oil to the bearings at both ends of the reducer input shaft according to any one of claims 1 to 4, characterized in that: The flow distribution component comprises a reverse flow assurance block (7), which is fixed to the middle area of ​​the reverse flow collecting tank (202) and divides the reverse flow collecting tank (202) into a reverse left flow collecting tank (2021) and a reverse right flow collecting tank (2022).

7. The device for providing sufficient lubricating oil to the bearings at both ends of the reducer input shaft according to any one of claims 1 to 4, characterized in that: The mounting portion is a tubular mounting body (8) located on the left side of the collecting and distributing portion, and the tube hole (801) of the tubular mounting body (8) is in communication with the left oil outlet (204) of the collecting tank (2).

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