Gear box oil collecting structure and gear box
By designing the oil integration structure in the gear box, the combination of oil conduction tendons and sleeves is used to solve the problem of poor lubrication in the tilt state of the gear box, and realize the good lubrication of the lazy bearing and the stability of the gearbox structure.
Patent Information
- Application Number
- CN202323538427.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2033-12-25
AI Technical Summary
The gearboxes of existing mountain rail transit vehicles cannot obtain good lubrication in an inclined state, which affects structural stability.
A gear box oil collection structure is designed, including oil guide tendons and sleeves. It guides lubricating oil to the oil collection groove through oil guide tendons, and uses the lubricant stored in the oil collection groove to provide lubrication for the lazy axis bearing.
Under the condition of tilt, it ensures good lubrication of the lazy bearing, and improves the structural stability and lubrication reliability of the gear box.
Smart Images
Figure CN222415894U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a gear box oil collecting structure and a gear box, belonging to the technical field of gear box lubrication. Background Art
[0002] In the existing technology, more and more vehicles are being developed to adapt to mountain rail transit. This type of rail transit vehicle has the characteristics of strong climbing ability, high speed, long line, and interconnection with the transmission railway. In order to meet the demand for low construction cost at the same time, the research and development of existing mountain rail transit vehicles is mainly focused on vehicles in the form of Strub rack system, whose climbing ability can reach 250‰. The key technology for the successful development of this vehicle is the driving gearbox of the bogie, and the structural stability of the gearbox is a necessary requirement for the operation of the bogie.
[0003] However, when this type of vehicle is running in the mountains, the gearbox will be in a tilted state for a long time because it is often in slope conditions. The idler shaft structure relies only on splash lubrication, and the lubrication reliability cannot be guaranteed, which affects the structural stability of the gearbox. Utility Model Content
[0004] The utility model provides a gear box oil collecting structure, which is designed to solve the technical problem in the prior art that when the gear box is in an inclined state, the idle shaft structure cannot obtain good lubrication.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a gearbox oil collecting structure, including an oil guide rib and a sleeve; the sleeve is sleeved on the idle shaft and fixed to the gearbox housing; an oil collecting groove is provided on the sleeve, and a second oil hole is opened in the oil collecting groove; the second oil hole is connected with the oil channel opened in the idle shaft; the oil guide rib is located on the inner wall of the box body above the oil collecting groove; the lubricating oil is introduced into the oil collecting groove through the oil guide rib.
[0006] Preferably, the sleeve is provided with a stopper, which is used to fix the sleeve on the gearbox housing to prevent the sleeve from rotating. Since the oil collecting tank does not rotate relative to the idle shaft, more lubricating oil can be stored, and the oil in the oil collecting tank will not be thrown out due to rotation.
[0007] Preferably, the sleeve is provided with reinforcing ribs along the axial direction.
[0008] Preferably, the oil guide ribs include a first oil guide rib and a second oil guide rib, wherein the first oil guide rib is arranged in the vertical direction of the idle shaft centerline; the second oil guide rib forms an angle of 45° with the first oil guide rib. By arranging the oil guide ribs at multiple angles, the oil guide ribs can collect a wider range of lubricating oil splashed onto the box wall, thereby ensuring good lubrication of the idle shaft bearing in tilted working conditions.
[0009] Preferably, an inclined boss is provided between the oil guide rib and the oil collecting groove; the inclined boss is provided at the bearing hole of the box body.
[0010] Preferably, two second oil guide ribs are provided, and the two second oil guide ribs are vertically arranged between each other; and the inclined boss is connected to the two second oil guide ribs, so that the lubricating oil collected by the oil guide ribs can be fully guided into the oil collecting tank.
[0011] Preferably, a first oil passage is provided along the center line of the idler shaft, and a second oil passage and a third oil passage are provided along the radial direction of the idler shaft; one end of the second oil passage is connected to the first oil passage, and the other end is connected to the second oil hole; the third oil passage is provided along the center line of the idler gear bearing and is connected to the first oil passage. The lubricating oil in the sleeve oil sump flows to the center position of the two bearings through the oil passage provided in the idler shaft, thereby fully lubricating the bearings.
[0012] Preferably, a plug is provided at one end of the first oil passage to prevent the lubricating oil from leaking out of the box body; the plug is an expansion sleeve type to facilitate installation and disassembly.
[0013] Preferably, a bearing distance ring is provided in correspondence with the bearing of the idler wheel, a first oil hole is provided on the circumference of the bearing distance ring, and the first oil hole is communicated with the third oil channel.
[0014] A gear box comprises the above-mentioned gear box oil collecting structure.
[0015] The oil collecting structure of the utility model uses a plurality of oil guiding ribs to guide the lubricating oil in the inner wall of the box body to flow to the bearing lubrication point, and utilizes a part of the splashed lubricating oil stored in the sleeve oil collecting groove for lubricating the idler shaft bearing. When the train is running in the mountains and is in various slope conditions, it can also effectively ensure that the idler shaft bearing has good lubrication.
[0016] The oil collecting structure of the utility model is suitable for gearbox lubrication in the form of splashing, and the gearbox has an idle shaft design structure, which is very adaptable to the tilting and swinging operation of the gearbox; and the design of the oil collecting structure effectively improves the reliability of gearbox bearing lubrication. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic diagram of a gear box provided by the utility model;
[0018] Figure 2 A schematic diagram of a gear box oil collecting structure provided by the utility model;
[0019] Figure 3 This is a structural schematic diagram of the oil guide rib and the inclined boss in the utility model;
[0020] Figure 4 It is a structural schematic diagram of the sleeve in the utility model;
[0021] Figure 5 It is a structural schematic diagram of the oil guide rib, the oil guide groove and the inclined boss in the utility model;
[0022] Figure 6 It is a structural schematic diagram of the bearing spacing ring in the utility model.
[0023] Among them: 1-idler wheel, 2-bearing distance ring, 201-first oil hole, 3-idler shaft, 301-first oil channel, 302-second oil channel, 303-third oil channel, 4-plug, 5-oil guide rib, 501-first oil guide rib, 502-second oil guide rib, 6-sleeve, 601-stop, 602-oil collecting groove, 603-reinforcement rib, 604-second oil hole, 7-inclined boss. DETAILED DESCRIPTION
[0024] In order to better understand the essence of the present invention, the present invention is further described below in conjunction with specific embodiments and drawings.
[0025] The oil collecting structure of the utility model is particularly suitable for mountain trains with various slopes in the operating conditions, and specifically relates to a gear box oil collecting structure, such as Figure 1 and Figure 2 As shown, it includes an oil guide rib 5 and a sleeve 6; the sleeve 6 is sleeved on the idle shaft 3 and fixed to the gear box housing; an oil collecting groove 602 is provided on the sleeve 6, and a second oil hole 604 is opened in the oil collecting groove 602; the second oil hole 604 is connected with the oil channel opened in the idle shaft 3; the oil guide rib 5 is located on the inner wall of the box above the oil collecting groove 602; the lubricating oil is introduced into the oil collecting groove 602 through the oil guide rib 5.
[0026] The oil collecting structure of the utility model uses a plurality of oil guiding ribs to guide the lubricating oil in the inner wall of the gear box to flow to the bearing lubrication point, and utilizes a part of the splashed lubricating oil stored in the sleeve oil collecting groove for lubricating the idle shaft bearing, so that the idle shaft bearing is still well lubricated when the gear box is in a tilted working condition.
[0027] In some embodiments of the present invention, Figure 3 As shown, the oil guide rib 5 includes a first oil guide rib 501 and a second oil guide rib 502. The first oil guide rib 501 is arranged in the vertical direction of the center line of the idle shaft 3. The second oil guide rib 502 forms an angle of 45° with the first oil guide rib 501. The second oil guide rib 502 guides the lubricating oil on the inner wall of the box body to flow into the oil collecting groove 602 through the first oil guide rib 501. By arranging the oil guide ribs at multiple angles, the oil guide ribs can collect a wider range of lubricating oil splashed on the box wall, thereby ensuring good lubrication of the idle shaft bearing in tilted working conditions.
[0028] In some embodiments of the present invention, Figure 4As shown, the sleeve 6 is provided with a stopper 601, and the stopper 601 is used to fix the sleeve 6 on the gearbox housing to prevent rotation. The sleeve 6 is provided with a reinforcing rib 603 along the axial direction.
[0029] The oil collecting groove of the sleeve 6 fixed with the housing through the stopper can collect the splashed lubricating oil, so that under the tilting condition, the sleeve oil collecting groove can store a part of the lubricating oil for the idle shaft bearing lubrication; the oil collecting groove 602 of the sleeve 6 cooperates with the housing oil guide rib 5 to collect not only the lubricating oil on the housing wall, but also the splashed lubricating oil. At the same time, since the oil collecting groove 602 does not rotate relative to the idle shaft 3, it can store more lubricating oil, and the oil in the oil collecting groove 602 will not be thrown out due to rotation.
[0030] In some embodiments of the present invention, Figure 5 As shown, the gearbox oil collecting structure further includes an inclined boss 7; the inclined boss 7 is arranged at the bearing hole of the box body, and is located between the oil guide rib 5 and the oil collecting groove 602. Two second oil guide ribs 502 are arranged, and the two second oil guide ribs 502 are vertically arranged; the inclined boss 7 is connected to the two second oil guide ribs 502. The lubricating oil passes through the oil guide rib 5 and is introduced into the oil collecting groove 602 by the inclined boss 7.
[0031] In some embodiments of the utility model, a first oil passage 301 is provided along the center line of the idle shaft 3, and a second oil passage 302 and a third oil passage 303 are provided radially along the idle shaft 3; one end of the second oil passage 302 is connected to the first oil passage 301, and the other end is connected to the second oil hole 604; the third oil passage 303 is provided along the center line of the idler wheel 1 bearing and is connected to the first oil passage 301. The lubricating oil in the oil collecting groove of the sleeve 6 flows to the center position of the two bearings through the oil passage opened in the idle shaft 3, so as to fully lubricate the bearings. As a preferred embodiment of the utility model, a plug 4 is provided at one end of the first oil passage 301 to prevent the lubricating oil from leaking out of the box. As a further preferred embodiment of the utility model, the plug 4 is an expansion sleeve type to facilitate installation and disassembly.
[0032] In some embodiments of the present invention, Figure 6 As shown, the idler wheel 1 is provided with a bearing distance ring 2 corresponding to the bearing, and an appropriate number of first oil holes 201 are provided on the circumference of the bearing distance ring 2 to supply lubrication to the idler shaft bearing.
[0033] It should be noted that although the utility model is described through the above embodiments, the utility model can also have other various embodiments. Without departing from the spirit and scope of the utility model, it is obvious that those skilled in the art can make various corresponding changes and deformations to the utility model, but these changes and deformations should fall within the scope of protection of the attached claims of the utility model and their equivalents.
Claims
1. A gearbox oil collecting structure, characterized in that: The invention comprises an oil guide rib (5) and a sleeve (6); the sleeve (6) is sleeved on the idle shaft (3) and fixed to the gear box housing; the sleeve (6) is provided with an oil collecting groove (602), and a second oil hole (604) is provided in the oil collecting groove (602); the second oil hole (604) is communicated with an oil passage provided in the idle shaft (3); the oil guide rib (5) is located on the inner wall of the housing above the oil collecting groove (602); and the lubricating oil is introduced into the oil collecting groove (602) through the oil guide rib (5).
2. The gearbox oil collecting structure according to claim 1, characterized in that: The sleeve (6) is provided with a stopper (601), and the stopper (601) is used to fix the sleeve (6) on the gear box housing.
3. The gearbox oil collecting structure according to claim 1 or 2, characterized in that: The sleeve (6) is provided with reinforcing ribs (603) along the axial direction.
4. The gearbox oil collecting structure according to claim 1, characterized in that: The oil guide rib (5) comprises a first oil guide rib (501) and a second oil guide rib (502); the first oil guide rib (501) is arranged in the vertical direction of the center line of the idle shaft (3); the second oil guide rib (502) forms an angle of 45° with the first oil guide rib (501).
5. The gearbox oil collecting structure according to claim 4, characterized in that: An inclined boss (7) is provided between the oil guide rib (5) and the oil collecting groove (602); the inclined boss (7) is provided at the bearing hole of the box body.
6. The gearbox oil collecting structure according to claim 5, characterized in that: Two second oil guide ribs (502) are provided, and the two second oil guide ribs (502) are vertically arranged between each other; and the inclined boss (7) is connected to the two second oil guide ribs (502).
7. The gearbox oil collecting structure according to claim 1, characterized in that: A first oil passage (301) is arranged along the center line of the idler shaft (3), and a second oil passage (302) and a third oil passage (303) are arranged along the radial direction of the idler shaft (3); one end of the second oil passage (302) is connected to the first oil passage (301), and the other end is connected to the second oil hole (604); the third oil passage (303) is arranged along the center line of the idler gear (1) bearing and is connected to the first oil passage (301).
8. The gearbox oil collecting structure according to claim 7, characterized in that: A plug (4) is provided at one end of the first oil passage (301), and the plug (4) is of an expansion sleeve type.
9. The gearbox oil collecting structure according to claim 7, characterized in that: The idler wheel (1) is provided with a bearing distance ring (2) corresponding to the bearing, and a first oil hole (201) is provided on the circumference of the bearing distance ring (2), and the first oil hole (201) is connected to the third oil channel (303).
10. A gear box, characterized in that: The invention comprises a gearbox oil collecting structure as described in any one of claims 1 to 9.