Wear-resistant helical gear for automobile transmission
By designing an oil reservoir and a movable ring inside the helical gear, the problem of lubricating oil flowing out when the gear stops operating is solved, enabling effective utilization of lubricating oil and convenient maintenance of parts, thus extending service life.
Patent Information
- Application Number
- CN202520742469.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-18
AI Technical Summary
When existing helical gears stop operating, lubricating oil tends to leak out from the return hole, resulting in waste.
A structure including an oil reservoir, a movable ring, a through groove, a retaining block, a mounting plate, a retaining groove, a fixing block, a spring, a movable block, a bolt, a threaded hole, a return hole, an annular groove, and a retaining ring is designed. Through the cooperation of these components, the lubricating oil can block the return hole when the helical gear stops rotating, preventing it from flowing out; when rotating at high speed, the lubricating oil flows through the return hole to the gear surface for lubrication.
This effectively avoids wasting lubricating oil, extends service life, and facilitates subsequent lubrication and replacement of internal parts.
Smart Images
Figure CN223894934U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of helical gear technology, and more specifically, it relates to a wear-resistant helical gear for automotive transmission. Background Technology
[0002] Helical gears have advantages such as small size, light weight, large torque transmission, smooth starting, low operating noise, and finely graded transmission ratios, making them commonly used mechanical transmission parts in automobiles.
[0003] Based on the above, the inventors have discovered the following problems: current helical gears are prone to severe wear during operation. The common method to reduce gear wear is to add lubricating oil inside the helical gear. However, when the gear stops running, the lubricating oil will flow out from the return hole, resulting in a large amount of lubricating oil consumption and waste.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a wear-resistant helical gear for automotive transmission, in order to achieve a more practical value. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a wear-resistant helical gear for automotive transmission, which solves the problem that when the current helical gear stops running, the lubricating oil inside it easily flows out from the return hole, causing lubricating oil waste.
[0006] The purpose and effect of this utility model, a wear-resistant helical gear for automotive transmission, are achieved by the following specific technical means:
[0007] A wear-resistant helical gear for automotive transmission includes a helical gear body. An oil reservoir is formed inside the helical gear body. A movable ring is formed inside the oil reservoir. Several through grooves are formed on the surface of the movable ring. A set of locking blocks is symmetrically arranged on the top of the movable ring. A mounting plate is engaged with the top of each locking block. A slot is formed on the bottom of the mounting plate. A set of fixing blocks is symmetrically arranged within the slot. A set of springs is provided on one side of each set of fixing blocks. A movable block is provided on the other side of each spring. Several bolts are provided on the top of the mounting plate. Several threaded holes are provided on the top of the helical gear body, and the threaded holes match the bolts. Several return holes are provided on the circumference of the helical gear body, and the return holes are connected to the oil reservoir.
[0008] Furthermore, the through groove and the return hole are matched.
[0009] Furthermore, the card block is installed between a group of the active blocks.
[0010] Furthermore, the bottom of the oil storage tank is provided with an annular groove, and the bottom of the movable ring is provided with a retaining ring, which is installed in the annular groove.
[0011] Furthermore, the outer side of the movable ring is in contact with the side wall of the oil storage tank.
[0012] Furthermore, a sealing gasket is provided at the bottom of the mounting plate.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. Through the cooperation of the oil reservoir, movable ring, through groove, locking block, mounting plate, locking groove, fixed block, spring, movable block, bolt, threaded hole, return hole, annular groove, and locking ring, when the helical gear body stops running, the outer side of the movable ring is in contact with the side wall of the oil reservoir. The through groove and return hole of the movable ring are staggered, blocking the return hole and preventing the lubricating oil in the oil reservoir from flowing out of the return hole. When the helical gear body rotates at high speed, under the action of centrifugal force, the locking block moves along the locking groove, driving the locking block to the position of the fixed block. At this time, the positions of the through groove and the return hole match, which facilitates the lubricating oil to flow from the through groove and the return hole to the surface of the helical gear body for lubrication. Conversely, the spring rebounds, and the movable ring rotates along the annular groove, so that the through groove and the return hole are staggered again, achieving the effect of blocking the return hole and preventing the lubricating oil from flowing out of the return hole, which would result in large lubricating oil consumption and waste.
[0015] 2. By fitting the mounting plate, bolts, threaded holes, and sealing gaskets together, the mounting plate is installed on top of the helical gear body using bolts. The sealing gaskets prevent lubricant leakage and facilitate subsequent addition of lubricant and replacement or maintenance of internal springs and other parts, thus extending service life. Attached Figure Description
[0016] Figure 1 This is a three-dimensional unfolded schematic diagram of a wear-resistant helical gear used in automotive transmission according to this utility model.
[0017] Figure 2 This is a three-dimensional cross-sectional schematic diagram of a wear-resistant helical gear used in automotive transmission according to this utility model.
[0018] Figure 3 This is a three-dimensional schematic diagram of a wear-resistant helical gear mounting plate for automotive transmission according to this utility model.
[0019] Figure 4 This is a cross-sectional schematic diagram of a wear-resistant helical gear mounting plate for automotive transmission according to this utility model.
[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0021] 1. Helical gear body; 2. Oil reservoir; 3. Movable ring; 4. Through groove; 5. Snap block; 6. Mounting plate; 7. Snap groove; 8. Fixing block; 9. Spring; 10. Movable block; 11. Bolt; 12. Threaded hole; 13. Return hole; 14. Annular groove; 15. Snap ring; 16. Sealing gasket. Detailed Implementation
[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Example:
[0026] As attached Figure 1 To be continued Figure 4 As shown:
[0027] This utility model provides a wear-resistant helical gear for automotive transmission, including a helical gear body 1. An oil reservoir 2 is provided inside the helical gear body 1. A movable ring 3 is provided inside the oil reservoir 2. Several through grooves 4 are provided on the surface of the movable ring 3. A set of locking blocks 5 are symmetrically arranged on the top of the movable ring 3. A mounting plate 6 is engaged with the top of the locking blocks 5. A slot 7 is provided at the bottom of the mounting plate 6. A set of fixing blocks 8 are symmetrically arranged in the slot 7. A set of springs 9 is provided on one side of the set of fixing blocks 8. A movable block 10 is provided on the other side of the springs 9. Several bolts 11 are provided on the top of the mounting plate 6. Several threaded holes 12 are provided on the top of the helical gear body 1. The threaded holes 12 and bolts 11 are matched. Several return holes 13 are provided on the circumference of the helical gear body 1. The return holes 13 are connected to the oil reservoir 2.
[0028] The through groove 4 and the return hole 13 are matched.
[0029] The card block 5 is installed between a group of the movable blocks 10.
[0030] The bottom of the oil storage tank 2 is provided with an annular groove 14, and the bottom of the movable ring 3 is provided with a retaining ring 15. The retaining ring 15 is installed in the annular groove 14 to facilitate the movable ring 3 to rotate in the oil storage tank 2.
[0031] The outer side of the movable ring 3 is in contact with the side wall of the oil reservoir 2. Through the cooperation between the oil reservoir 2, movable ring 3, through groove 4, locking block 5, mounting plate 6, locking groove 7, fixing block 8, spring 9, movable block 10, bolt 11, threaded hole 12, return hole 13, annular groove 14 and locking ring 15, when the helical gear body 1 stops operating, the outer side of the movable ring 3 is in contact with the side wall of the oil reservoir 2. The through groove 4 and return hole 13 of the movable ring 3 are staggered, blocking the return hole 13 and preventing the lubricating oil in the oil reservoir 2 from flowing out of the return hole 13. When the helical gear body 1 rotates at high speed, under the action of centrifugal force, the locking block 5 moves along the locking groove 7, causing the locking block 5 to abut against the position of the fixed block 8. At this time, the positions of the through groove 4 and the return hole 13 match, which facilitates the flow of lubricating oil from the through groove 4 through the return hole 13 to the surface of the helical gear body 1 for lubrication. Conversely, when the spring 9 rebounds, the movable ring 3 rotates along the annular groove 14, so that the through groove 4 and the return hole 13 are cross-distributed again, achieving the effect of blocking the return hole 13, preventing the lubricating oil from flowing out of the return hole 13, which would result in a large consumption of lubricating oil and waste.
[0032] The mounting plate 6 has a sealing gasket 16 at its bottom. Through the cooperation between the mounting plate 6, bolts 11, threaded holes 12 and sealing gasket 16, the mounting plate 6 is installed on the top of the helical gear body 1 by bolts 11. With the sealing gasket 16, lubricating oil leakage is prevented, and it is also convenient to add lubricating oil and replace and repair internal springs 9 and other accessories, thereby improving service life.
[0033] The specific usage and function of this embodiment are as follows:
[0034] First, check the integrity of the device, then put it into actual use. Through the cooperation between the oil reservoir 2, movable ring 3, through groove 4, locking block 5, mounting plate 6, locking groove 7, fixing block 8, spring 9, movable block 10, bolt 11, threaded hole 12, return hole 13, annular groove 14, and locking ring 15, when the helical gear body 1 stops running, the outer side of the movable ring 3 is attached to the side wall of the oil reservoir 2. The through groove 4 and the return hole 13 of the movable ring 3 are staggered, blocking the return hole 13 and preventing the lubricating oil in the oil reservoir 2 from flowing out of the return hole 13. When the helical gear body 1 rotates at high speed, under the action of centrifugal force, the locking block 5 moves along the locking groove 7, driving the locking block 5 to the position of the fixing block 8. At this time, the through groove 1... The position of the through groove 4 and the return hole 13 are matched to facilitate the flow of lubricating oil from the through groove 4 through the return hole 13 to the surface of the helical gear body 1 for lubrication. Conversely, when the spring 9 rebounds, the movable ring 3 rotates along the annular groove 14, so that the through groove 4 and the return hole 13 are cross-distributed again, achieving the effect of blocking the return hole 13 and preventing lubricating oil from flowing out of the return hole 13, which would result in a large consumption of lubricating oil and waste. When maintenance is required, the mounting plate 6 is installed on the top of the helical gear body 1 by bolt 11 through the cooperation between the mounting plate 6, bolt 11, threaded hole 12 and sealing gasket 16, and the sealing gasket 16 is used to prevent lubricating oil leakage. At the same time, it is convenient to add lubricating oil and replace and repair internal spring 9 and other parts, thus improving service life.
[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A wear-resistant helical gear for automotive transmission, comprising a helical gear body (1), characterized in that: The helical gear body (1) has an oil storage tank (2) inside. The oil storage tank (2) has a movable ring (3) inside. The surface of the movable ring (3) has several through slots (4). A set of locking blocks (5) is symmetrically arranged on the top of the movable ring (3). A mounting plate (6) is engaged on the top of the locking blocks (5). A slot (7) is opened at the bottom of the mounting plate (6). A set of fixing blocks (8) is symmetrically arranged in the slot (7). A set of springs (9) is arranged on one side of the set of fixing blocks (8). A movable block (10) is arranged on the other side of the springs (9). A set of bolts (11) is arranged on the top of the mounting plate (6). A set of threaded holes (12) is arranged on the top of the helical gear body (1). The threaded holes (12) and bolts (11) are matched. A set of return holes (13) are arranged on the periphery of the helical gear body (1). The return holes (13) are connected to the oil storage tank (2).
2. The wear-resistant helical gear for automotive transmission as described in claim 1, characterized in that: The through groove (4) and the return hole (13) are matched.
3. The wear-resistant helical gear for automotive transmission as described in claim 2, characterized in that: The card block (5) is installed between a group of the movable blocks (10).
4. The wear-resistant helical gear for automotive transmission as described in claim 3, characterized in that: The bottom of the oil storage tank (2) is provided with an annular groove (14), and the bottom of the movable ring (3) is provided with a retaining ring (15), which is installed in the annular groove (14).
5. The wear-resistant helical gear for automotive transmission as described in claim 4, characterized in that: The outer side of the movable ring (3) is in contact with the side wall of the oil storage tank (2).
6. The wear-resistant helical gear for automotive transmission as described in claim 5, characterized in that: The bottom of the mounting plate (6) is provided with a sealing gasket (16).