Multi-gear gear shifting transmission structure
By introducing filtering, anti-clogging, and fixing mechanisms into the gear shifting transmission structure, the problem of damage to gears caused by debris in the lubricating oil is solved, thereby improving lubrication performance, enhancing device stability, and facilitating maintenance.
Patent Information
- Application Number
- CN202520648646.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-08
AI Technical Summary
In existing gear shifting transmission structures, when operating at high speeds, debris in the lubricating oil mixes with gear wear, resulting in reduced lubrication and damage to the gears.
A multi-gear shifting transmission structure was designed, which includes a filtering mechanism, an anti-clogging mechanism, and a fixing mechanism. The filtering mechanism filters out debris in the lubricating oil, the anti-clogging mechanism prevents clogging, and the fixing mechanism facilitates disassembly and maintenance.
It effectively filters debris from the lubricating oil, improves lubrication, prevents gear wear, enhances operational stability, and facilitates equipment maintenance.
Smart Images
Figure CN223868520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transmission structure lubrication technology, specifically to a multi-gear shifting transmission structure. Background Technology
[0002] When a car changes gears, it uses a gear shifting transmission structure.
[0003] In existing transmission structures, transmission is achieved through the meshing of gears. During gear meshing, lubricating oil is injected into the transmission gears. While the lubricating oil provides lubrication, the gears still wear against each other and produce debris at high speeds. This method of enveloping lubrication causes the debris from wear to mix with the lubricating oil, which can damage the gears and reduce the lubrication effect.
[0004] Based on this, this utility model designs a multi-gear shifting transmission structure to solve the above problems. Utility Model Content
[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a multi-gear shifting transmission structure.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A multi-gear shifting transmission structure includes a drive shaft; a drive gear fixedly mounted on the outer wall of the drive shaft by interference fit; a connecting sleeve disposed on the drive shaft; a filter mechanism disposed on the connecting sleeve; and an anti-clogging mechanism and a fixing mechanism disposed on the filter mechanism. The drive shaft has an internal oil passage, and lubrication holes are formed on the wall surface of the drive gear near the drive shaft axis and on the outer wall of the drive shaft. The lubrication holes on the outer wall of the drive shaft and the oil passage inside the drive shaft are interconnected. A connecting groove is formed on the outer wall of the drive shaft, and the connecting sleeve rotates in a sealed manner. The filter mechanism includes two sets of filter boxes that are slidably connected to the outer wall of the connecting sleeve, with the interior of the two sets of filter boxes interconnected; an oil drain pipe that is fixedly installed on the adjacent walls of the two sets of filter boxes and slidably connected to the corresponding installation slots; filter screens that are fixedly installed on the inner walls of the two sets of filter boxes at the positions of the two sets of oil drain pipes; and an oil pump that is fixedly installed on the outer wall of the right filter box, with the output end of the oil pump sealed to the outer wall of the right filter box.
[0008] Furthermore, the anti-clogging mechanism includes a connecting shaft rotatably installed inside the filter box, the outer wall of the connecting shaft being rotatably connected to the front wall of the filter box by a sealing method; a gear one fixedly installed on the outer wall of the connecting shaft; a gear two fixedly installed on the outer wall of the transmission shaft; and a scraper fixedly installed on the outer wall of the connecting shaft.
[0009] Furthermore, the second gear meshes with the first gear, the wall surface of the scraper away from the axis of the connecting shaft is an arc surface, the wall surface of the filter screen corresponding to the scraper is an arc surface, the two sets of arc surfaces fit together, and the two sets of arc surfaces are concentric arcs.
[0010] Furthermore, the fixing mechanism includes two sets of fixing plates fixedly installed on the upper and lower walls of the right-side filter box, with two plates in each set; rotating blocks rotatably installed on the adjacent walls of the two fixing plates on the same side, with threaded grooves opened on the left side walls of both sets of rotating blocks; threaded rods threadedly connected inside the two sets of threaded grooves; and connecting plates fixedly installed on the upper and lower walls of the two sets of left-side filter boxes.
[0011] Furthermore, the outer wall of the threaded rod extends to the right side of the two sets of threaded grooves, the two sets of connecting plates correspond to the two fixed plates on the same side, the two sets of connecting plates are concave, the wall surfaces of the grooves of the two sets of connecting plates that are close to each other are arc surfaces, and the two sets of threaded rods are slidably connected to the interior of the connecting plates on the same side.
[0012] Furthermore, the limiting blocks fixedly installed on the left side wall of the two sets of threaded rods have a limiting groove on the left side wall of each of the two sets of connecting plates, and both sets of limiting blocks can rotate inside the two sets of limiting grooves; the two sets of connecting plates fixedly installed on the right side wall of the left filter box have connecting slots at the corresponding positions of the connecting plates in the right filter box.
[0013] Furthermore, both sets of limiting blocks have hexagonal auxiliary slots on their left side walls, and both sets of limiting blocks are slidably connected to the limiting slots on the same side. The two sets of connecting plates are also slidably connected to the connecting slots on the same side.
[0014] Furthermore, a limiting plate is fixedly installed on the outer wall of the drive shaft, and a second limiting groove is formed on the inner wall of the drive gear. The limiting plate and the second limiting groove are slidably connected.
[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. By setting a filtration mechanism, the debris in the lubricating oil can be filtered to avoid damage to the gears and improve the lubrication effect. At the same time, the flowing lubricating fluid will carry the debris adhering to the tooth groove wall of the transmission gear to the bottom of the gearbox, which will protect the gears.
[0016] 2. By setting an anti-blocking mechanism, the risk of blockage can be avoided and the working stability can be improved. By setting a fixing mechanism, it is convenient for subsequent disassembly, maintenance or repair. By setting a limit plate and limit groove II, it is convenient for the alignment of the two sets of lubrication oil holes, which facilitates the installation of the device. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a left perspective view of the entire utility model;
[0019] Figure 2 This is a front view of the entire utility model;
[0020] Figure 3 This is a perspective view of the entire utility model from the right side.
[0021] Figure 4 This is a perspective view of the filter box of this utility model;
[0022] Figure 5 This is a partial perspective view of the drive shaft of this utility model;
[0023] Figure 6 This is a sectional perspective view of the filter box of this utility model;
[0024] Figure 7 This is a perspective view of the gear of this utility model.
[0025] The labels in the diagram represent:
[0026] 1. Drive shaft; 2. Drive gear; 3. Connecting groove; 4. Connecting sleeve; 5. Filtering mechanism; 51. Filter box; 52. Oil drain pipe; 53. Oil pump; 54. Filter screen; 6. Anti-clogging mechanism; 61. Connecting shaft; 62. Gear 1; 63. Gear 2; 64. Scraper; 7. Fixing mechanism; 71. Fixing plate; 72. Rotating block; 73. Threaded through groove; 74. Threaded rod; 75. Connecting plate; 76. Limiting block; 77. Limiting groove 1; 78. Connecting clamping plate; 79. Connecting clamping groove; 8. Lubricating oil hole; 9. Limiting plate; 10. Limiting groove 2. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.
[0029] The present invention will be further described below with reference to the embodiments.
[0030] Example 1: Please refer to the accompanying drawings in the instruction manual. Figure 1 - Figure 6 A multi-gear shifting transmission structure includes a drive shaft 1, which is located inside a gearbox housing; transmission gears 2, which are fixedly mounted on the outer wall of the drive shaft 1 by interference fit. The number of transmission gears 2 varies depending on the number of gears to be shifted, which is existing technology and will not be elaborated here; a connecting sleeve 4 mounted on the drive shaft 1; a filter mechanism 5 mounted on the connecting sleeve 4; an anti-clogging mechanism 6 and a fixing mechanism 7 mounted on the filter mechanism 5; an oil passage is provided inside the drive shaft 1; lubrication holes 8 are provided on the wall surface of the transmission gear 2 near the axis of the drive shaft 1 and on the outer wall of the drive shaft 1, with the two sets of lubrication holes 8 corresponding to each other; the lubrication holes 8 on the outer wall of the drive shaft 1 and the oil passage inside the drive shaft 1 are interconnected; a connecting groove 3 is provided on the outer wall of the drive shaft 1; the connecting sleeve 4 is rotatably mounted inside the connecting groove 3 by a sealing method; the connecting groove 3 is located near the axis of the drive shaft 1. The wall surface of the filter is provided with an oil inlet hole, and the left and right walls of the connecting sleeve 4 are provided with mounting grooves. The filter mechanism 5 includes two sets of filter boxes 51 that are slidably connected to the outer wall of the connecting sleeve 4. The interiors of the two sets of filter boxes 51 are interconnected and the two sets of filter boxes 51 are fixedly connected together by a fixing mechanism 7. The oil drain pipes 52 are fixedly installed on the adjacent walls of the two sets of filter boxes 51 and are slidably connected to the corresponding mounting grooves. The two sets of oil drain pipes 52 and the mounting grooves are slidably connected in a sealed manner. The filter screens 54 are fixedly installed on the inner walls of the two sets of filter boxes 51 at the positions of the two sets of oil drain pipes 52. The oil pump 53 is fixedly installed on the outer wall of the right filter box 51. The output end of the oil pump 53 is sealed to the outer wall of the right filter box 51. The input end of the oil pump 53 is fixedly connected to the inner wall of the gearbox, and the input end of the oil pump 53 draws the lubricating oil dripping at the bottom of the gearbox into the interior of the oil drain pipe 52 through an external pipe.
[0031] In practical use, when the drive shaft 1 rotates, due to the fixed connection between the filter box 51 and the connecting sleeve 4, and the rotational connection between the connecting sleeve 4 and the connecting groove 3, the filter box 51 will remain stationary. Through the input end of the oil pump 53 and the external pipe, the lubricating oil at the bottom of the gearbox can be drawn into the interior of the two sets of filter boxes 51. The lubricating oil is filtered by the filter screen 54, and the debris or impurities inside the lubricating oil will remain inside the filter box 51. The clean lubricating oil will enter the oil passage inside the drive shaft 1 through the oil drain pipe 52 and the oil inlet hole, and then be discharged into the tooth groove of the transmission gear 2 through the two sets of lubricating oil holes 8 to lubricate the tooth groove of the transmission gear 2. This lubrication method through filtration avoids the wear of the internal gears by debris and improves the lubrication effect. At the same time, the flowing lubricating fluid will carry the debris adhering to the tooth groove wall of the transmission gear 2 to the bottom of the gearbox, which plays a protective role for the gears.
[0032] Example 2: Based on Example 1, please refer to the accompanying drawings in the specification. Figure 1 - Figure 7 The anti-clogging mechanism 6 includes a connecting shaft 61 rotatably installed inside the filter box 51, the outer wall of the connecting shaft 61 being rotatably connected to the front wall of the filter box 51 by a sealing method; a gear 62 fixedly installed on the outer wall of the connecting shaft 61; a gear 63 fixedly installed on the outer wall of the transmission shaft 1, the gear 63 meshing with the gear 62; and a scraper 64 fixedly installed on the outer wall of the connecting shaft 61, the wall surface of the scraper 64 away from the axis of the connecting shaft 61 being an arc surface, the wall surface of the filter screen 54 corresponding to the scraper 64 being an arc surface, the two sets of arc surfaces fitting together, and the two sets of arc surfaces being concentric arcs.
[0033] The fixing mechanism 7 includes two sets of fixing plates 71 fixedly installed on the upper and lower walls of the right-side filter box 51, with two plates in each set; rotating blocks 72 rotatably installed on the adjacent walls of the two fixing plates 71 on the same side, with threaded grooves 73 on the left side walls of both sets of rotating blocks 72; threaded rods 74 threadedly connected inside the two sets of threaded grooves 73, with the outer walls of the threaded rods 74 extending to the right side of the two sets of threaded grooves 73; and connecting plates 75 fixedly installed on the upper and lower walls of the two sets of left-side filter boxes 51, with both sets of connecting plates 75 corresponding to the two fixing plates 71 on the same side, both sets of connecting plates 75 being concave, and the adjacent walls of the concave grooves of both sets of connecting plates 75 being arc-shaped. Both sets of threaded rods 74 are slidably connected to the interior of the connecting plate 75 on the same side; limiting blocks 76 are fixedly installed on the left side wall of the two sets of threaded rods 74, and the left side wall of the two sets of limiting blocks 76 is provided with a regular hexagonal auxiliary slot; the left side wall of the two sets of connecting plates 75 is provided with a limiting groove 77; the two sets of limiting blocks 76 are slidably connected to the limiting groove 77 on the same side; both sets of limiting blocks 76 can rotate inside the limiting groove 77; two sets of connecting plates 78 are fixedly installed on the right side wall of the left filter box 51, and the right filter box 51 is provided with a connecting groove 79 at the position corresponding to the connecting plates 78; the two sets of connecting plates 78 are slidably connected to the connecting groove 79 on the same side.
[0034] A limiting plate 9 is fixedly installed on the outer wall of the transmission shaft 1, and a limiting groove 10 is opened on the inner wall of the transmission gear 2. The limiting plate 9 and the limiting groove 10 are slidably connected.
[0035] In practical use, when the drive shaft 1 rotates, gear 2 63 will rotate. Due to the meshing relationship between gear 2 63 and gear 1 62, gear 1 62 will drive the connecting shaft 61 to rotate, and scraper 64 will rotate to remove debris adhering to the surface of filter screen 54, avoiding the risk of blockage caused by debris adhesion and improving the stability of operation. In addition, the two sets of limit blocks 76 can be rotated in the forward direction, and the two sets of threaded rods 74 will rotate in the forward direction and move to the left. The limit blocks 76 will move to the left until the limit blocks 76 and the limit groove 1 77 are separated. Then the threaded rods 74 are moved away from the limit. The connecting plate 75 is flipped until the threaded rod 74 separates from the connecting plate 75. Finally, the two sets of filter boxes 51 are moved away from each other until the connecting plate 78 and the connecting groove 79 separate, thus disassembling the two sets of filter boxes 51. The operation is simple and convenient, facilitating subsequent disassembly and maintenance. In addition, when installing the drive shaft 1 and the drive gear 2, the drive gear 2 can be fitted onto the outer wall of the drive shaft 1, and the limiting plate 9 can be inserted into the inside of the limiting groove 10 until the drive gear 2 can no longer move. At this time, the two sets of lubrication holes 8 are aligned, which facilitates the use of the device.
[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A multi-gear shifting transmission structure, comprising a drive shaft (1), characterized in that: It also includes a transmission gear (2) fixedly mounted on the outer wall of the transmission shaft (1) by interference fit; a connecting sleeve (4) provided on the transmission shaft (1); a filter mechanism (5) provided on the connecting sleeve (4); an anti-clogging mechanism (6) and a fixing mechanism (7) provided on the filter mechanism (5); An oil passage is provided inside the drive shaft (1). Lubricating oil holes (8) are provided on the wall near the shaft center of the drive shaft (1) and on the outer wall of the drive shaft (1). The lubricating oil holes (8) on the outer wall of the drive shaft (1) and the oil passage inside the drive shaft (1) are interconnected. A connecting groove (3) is provided on the outer wall of the drive shaft (1). A connecting sleeve (4) is rotatably installed inside the connecting groove (3) by means of a seal. An oil inlet hole is provided on the wall near the shaft center of the drive shaft (1). A mounting through groove is provided on both the left and right walls of the connecting sleeve (4). The filtration mechanism (5) includes two sets of filter boxes (51) that are slidably connected to the outer wall of the connecting sleeve (4), and the interiors of the two sets of filter boxes (51) are interconnected; an oil drain pipe (52) that is fixedly installed on the adjacent walls of the two sets of filter boxes (51) and slidably connected to the corresponding mounting slots; a filter screen (54) that is fixedly installed on the inner wall of the two sets of filter boxes (51) at the positions of the two sets of oil drain pipes (52); and an oil pump (53) that is fixedly installed on the outer wall of the right filter box (51), with the output end of the oil pump (53) being sealed to the outer wall of the right filter box (51).
2. The multi-gear shifting transmission structure according to claim 1, characterized in that, The anti-clogging mechanism (6) includes a connecting shaft (61) rotatably installed inside the filter box (51), the outer wall of the connecting shaft (61) being rotatably connected to the front wall of the filter box (51) by a sealing method; a gear one (62) fixedly installed on the outer wall of the connecting shaft (61); a gear two (63) fixedly installed on the outer wall of the transmission shaft (1); and a scraper (64) fixedly installed on the outer wall of the connecting shaft (61).
3. The multi-gear shifting transmission structure according to claim 2, characterized in that, The gear two (63) meshes with the gear one (62). The wall surface of the scraper (64) away from the axis of the connecting shaft (61) is an arc surface. The wall surface of the filter screen (54) corresponding to the scraper (64) is an arc surface. The two sets of arc surfaces fit together and are concentric arcs.
4. The multi-gear shifting transmission structure according to claim 1, characterized in that, The fixing mechanism (7) includes two sets of fixing plates (71) fixedly installed on the upper and lower walls of the right-side filter box (51), each set of fixing plates (71) having two plates; rotating blocks (72) rotatably installed on the adjacent walls of the two fixing plates (71) on the same side, each set of rotating blocks (72) having a threaded through groove (73) on the left side wall; a threaded rod (74) threadedly connected inside the two sets of threaded through grooves (73); and connecting plates (75) fixedly installed on the upper and lower walls of the two sets of left-side filter boxes (51).
5. The multi-gear shifting transmission structure according to claim 4, characterized in that, The outer wall of the threaded rod (74) extends to the right side of the two sets of threaded through grooves (73). The two sets of connecting plates (75) correspond to the two fixed plates (71) on the same side. The two sets of connecting plates (75) are concave. The walls of the grooves of the two sets of connecting plates (75) that are close to each other are arc surfaces. The two sets of threaded rods (74) are slidably connected to the inside of the connecting plates (75) on the same side.
6. The multi-gear shifting transmission structure according to claim 5, characterized in that, The limiting blocks (76) fixedly installed on the left side wall of the two sets of threaded rods (74) have limiting grooves (77) on the left side wall of the two sets of connecting plates (75), and the two sets of limiting blocks (76) can rotate inside the two sets of limiting grooves (77); the two sets of connecting plates (78) fixedly installed on the right side wall of the left filter box (51) have connecting grooves (79) at the corresponding positions of the connecting plates (78) in the right filter box (51).
7. The multi-gear shifting transmission structure according to claim 6, characterized in that, Both sets of limiting blocks (76) have hexagonal auxiliary slots on their left side walls. Both sets of limiting blocks (76) are slidably connected to the limiting slot (77) on the same side. Both sets of connecting plates (78) are slidably connected to the connecting slot (79) on the same side.
8. The multi-gear shifting transmission structure according to claim 1, characterized in that, A limiting plate (9) is fixedly installed on the outer wall of the transmission shaft (1), and a second limiting groove (10) is opened on the inner wall of the transmission gear (2). The limiting plate (9) and the second limiting groove (10) are slidably connected.