CN220770057U - Bevel gear drive mechanism and engine drive mechanism - Google Patents
Bevel gear drive mechanism and engine drive mechanism Download PDFInfo
- Publication number
- CN220770057U CN220770057U CN202322414226.3U CN202322414226U CN220770057U CN 220770057 U CN220770057 U CN 220770057U CN 202322414226 U CN202322414226 U CN 202322414226U CN 220770057 U CN220770057 U CN 220770057U
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- bevel gear
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- shaft
- thrust
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- 230000007246 mechanism Effects 0.000 title claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 58
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The utility model provides a bevel gear transmission mechanism, which comprises a driving bevel gear assembly and a driven bevel gear assembly, wherein the driving bevel gear assembly comprises a driving shaft, one end of the driving shaft is sleeved with a driving wheel, and the other end of the driving shaft is provided with a driving bevel gear; the driven bevel gear assembly comprises a driven shaft, a driven bevel gear meshed with the driving bevel gear is arranged on the driven shaft, a driven wheel is sleeved at one end of the driven shaft, and a thrust assembly is arranged at the other end of the driving shaft. The utility model also provides an engine transmission mechanism comprising the bevel gear transmission mechanism. According to the bevel gear transmission mechanism, the driven bevel gear can always keep good meshing with the driving bevel gear through the thrust component, so that damage to the gears caused by rigid collision among the gears is avoided, the damage to the gears is reduced, the service life of the gears is prolonged, the service life of the engine transmission mechanism is prolonged, and the maintenance and replacement cost of the engine is greatly reduced.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to a bevel gear transmission mechanism and an engine transmission mechanism.
Background
The engine is the core device for providing driving force for motor vehicles, and the transmission structure of the engine is generally composed of a crankshaft and a series of rotating shafts, wherein each rotating shaft is transmitted through a transmission gear, and finally momentum is transmitted to a tire.
In the engine transmission structure, light weight, high power density and low noise are always the pursuing targets of transmission gears, wherein the bevel gear transmission has the advantages of large overlap ratio, high strength, low noise, simple structure and the like, and is widely applied to automobiles, motorcycles and the like to change the transmission direction.
When the existing three-wheel or four-wheel motorcycle descends, the engine is usually used for braking in a reverse way, but because the strength of the engine is smaller, when the vehicle suddenly stops or stalls, the reverse thrust generated by the braking of the rear wheel and the weight of the vehicle is transmitted to other transmission gears through bevel gears, so that abrasion is caused, poor engagement is caused, and meanwhile, the gears are easily damaged due to rigid collision among the gears, so that the service life of the engine transmission mechanism is shortened, and the maintenance and replacement cost of the engine is greatly increased.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a bevel gear transmission mechanism and an engine transmission mechanism, so as to solve the technical problems that in the related art, when a motorcycle suddenly stops or stalls, the reverse thrust generated by rear wheel braking and vehicle weight is transmitted to other transmission gears through a bevel gear, abrasion is caused, poor engagement is caused, and meanwhile, gears are easy to damage due to rigid collision between the gears.
The utility model provides a bevel gear transmission mechanism, comprising:
the driving bevel gear assembly comprises a driving shaft, one end of the driving shaft is sleeved with a driving wheel, and the other end of the driving shaft is provided with a driving bevel gear; the driven bevel gear assembly comprises a driven shaft, a driven bevel gear meshed with the driving bevel gear is arranged on the driven shaft, a driven wheel is sleeved at one end of the driven shaft, and a thrust assembly is arranged at the other end of the driving shaft.
Further, the thrust assembly comprises a thrust cam sleeved on the driven shaft, a thrust spring is arranged at one end, away from the driven bevel gear, of the thrust cam, and a fixing seat sleeved on the driven shaft is fixedly connected with the other end of the thrust spring.
Further, the driven shaft is provided with a protruding portion, the thrust cam is provided with a through hole, the through hole is internally provided with a plurality of concave portions matched with the protruding portion, the concave portions are uniformly distributed in the through hole, the protruding portions correspond to the concave portions in number, and the protruding portions are uniformly distributed on the outer peripheral surface of the driven shaft.
Further, the thrust cam comprises a mounting block, and the mounting block is arranged at one end, far away from the thrust spring, of the thrust cam.
Further, the driven bevel gear comprises a plurality of mounting grooves matched with the mounting blocks, the number of the mounting grooves corresponds to the number of the mounting blocks, and the mounting blocks and the mounting grooves are arc-shaped structures.
Further, the mounting blocks are spaced apart in the circumferential direction of the thrust cam.
Furthermore, the driving shaft and the driven shaft are both provided with bearings.
Further, the driven bevel gear is installed on the driven shaft through an installation seat.
Further, the driven shaft is provided with protruding teeth, and the driven wheel is provided with recessed teeth matched with the protruding teeth so that the driven shaft is connected with the driven wheel.
The utility model also provides an engine transmission mechanism, which comprises the bevel gear transmission mechanism; the engine transmission mechanism further comprises a crank connecting rod mechanism, a transmission assembly and a reverse gear assembly, wherein the input end of the reverse gear assembly is connected with the crank connecting rod mechanism through the transmission assembly, and the output end of the reverse gear assembly is in transmission connection with the drive bevel gear assembly.
Compared with the prior art, the utility model has the following beneficial effects:
according to the bevel gear transmission mechanism, the driven bevel gear assembly is provided with the thrust assembly, and the driven bevel gear can always keep good meshing with the driving bevel gear due to the existence of the thrust spring on the thrust assembly, so that damage to gears caused by rigid collision among gears is avoided, the damage to the gears is reduced, and the service life of the gears is prolonged. Meanwhile, the engine transmission mechanism further comprises the bevel gear transmission mechanism, so that the service life of the engine transmission mechanism is prolonged, and the maintenance and replacement cost of the engine is greatly reduced.
Drawings
FIG. 1 is a schematic view of a bevel gear transmission mechanism according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a thrust cam according to an embodiment of the present utility model;
FIG. 3 is a schematic view showing a front view of a driven bevel gear according to an embodiment of the present utility model;
FIG. 4 is a schematic side view of a driven bevel gear in accordance with one embodiment of the present utility model;
FIG. 5 is a schematic view of a driven shaft according to an embodiment of the present utility model;
FIG. 6 is a schematic view of the structure of a driven wheel according to an embodiment of the present utility model;
FIG. 7 is a schematic view of a bevel gear mechanism coupled with a bearing in accordance with an embodiment of the present utility model;
FIG. 8 is a schematic diagram of an engine transmission mechanism according to an embodiment of the present utility model;
reference numerals illustrate:
the drive bevel gear assembly 1, the driving shaft 11, the driving wheel 12, the drive bevel gear 13, the driven bevel gear assembly 2, the driven shaft 21, the protruding part 211, the protruding teeth 212, the driven bevel gear 22, the mounting groove 221, the driven wheel 23, the recessed teeth 231, the thrust assembly 3, the thrust cam 31, the recessed part 312, the mounting block 311, the thrust spring 32, the fixed seat 33, the bearing 4, the mounting seat 5, the crank link mechanism 6, the transmission assembly 7 and the reverse gear assembly 8.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 1 and 5-6, an embodiment of the present utility model provides a bevel gear transmission comprising: the automatic transmission device comprises a driving bevel gear assembly 1 and a driven bevel gear assembly 2, wherein the driving bevel gear assembly 1 comprises a driving shaft 11, one end of the driving shaft 11 is sleeved with a driving wheel 12, and the other end of the driving shaft 11 is provided with a driving bevel gear 13; the driven bevel gear 22 assembly 2 comprises a driven shaft 21, wherein the driven shaft 21 is provided with a driven bevel gear 22 meshed with the driving bevel gear 13, one end of the driven shaft 21 is sleeved with a driven wheel 23, in particular, the driven shaft 21 is provided with a convex tooth 212, and the driven wheel 23 is provided with a concave tooth 231 matched with the convex tooth 212 so as to connect the driven shaft 21 with the driven wheel 23; the other end of the driving shaft 11 is provided with a thrust component 3; specifically, the thrust assembly 3 includes a thrust cam 31 sleeved on the driven shaft 21, a thrust spring 32 is disposed at one end of the thrust cam 31 away from the driven bevel gear 22, and a fixing seat 33 sleeved on the driven shaft 21 is fixedly connected to the other end of the thrust spring 32.
According to the bevel gear transmission mechanism provided by the utility model, the thrust component 3 is arranged on the driven bevel gear component 2, and the thrust spring 32 on the thrust component 3 gives the thrust to the driven bevel gear 22 so as to enable the driven bevel gear 22 to be better meshed with the drive bevel gear 13, so that the driven bevel gear 22 is prevented from being rigidly collided with the drive bevel gear 13 when driven by the thrust of the rear wheel, and the gear is prevented from being damaged.
In this embodiment, as shown in fig. 2 and fig. 5 to fig. 6, the driven shaft 21 is provided with a protruding portion 211, the thrust cam 31 is provided with a through hole, and a recessed portion 312 matched with the protruding portion 211 is provided in the through hole, so that the thrust cam 31 can move along the driven shaft 21 to buffer components on the driven shaft 21, wherein the number of the recessed portions 312 is a plurality, the plurality of the recessed portions 312 are uniformly distributed in the through hole, and the number of the protruding portions 211 corresponds to the number of the recessed portions 312, and the number can be three, four or five; the plurality of protruding portions 211 are uniformly distributed on the outer peripheral surface of the driven shaft 21.
In this embodiment, as shown in fig. 2, the thrust cam 31 includes a mounting block 311, the mounting block 311 is disposed at an end of the thrust cam 31 away from the thrust spring 32, the driven bevel gear 22 includes mounting grooves 221 matched with the mounting block 311, specifically, the mounting blocks 311 are distributed at intervals along the circumferential direction of the thrust cam 31, the mounting grooves 221 are distributed at intervals along the circumferential direction of the thrust cam 31, where the number of the mounting grooves 221 is plural, and the number of the mounting grooves 221 corresponds to the number of the mounting blocks 311, and the thrust cam 31 and the driven bevel gear 22 are connected through the matching use of the mounting blocks 311 and the mounting grooves 221.
Based on the above further improvement, as shown in fig. 2-3, in this embodiment, the mounting block 311 and the mounting groove 221 are both arc-shaped structures, and the arrangement of the arc-shaped structures makes the cooperation of the thrust cam 31 and the driven bevel gear 22 tighter, and can reduce the abrasion of the contact surfaces of the thrust cam 31 and the driven bevel gear 22.
Based on the further improvement, as shown in fig. 1 and 4, in the present embodiment, the driven bevel gear 22 is mounted on the driven shaft 21 through the mounting seat 5, and the mounting seat 5 makes the mounting of the driven bevel gear 22 more stable and firm, so as to meet the transmission requirement.
Based on the above further improvement, as shown in fig. 7, in this embodiment, the bearings 4 are disposed on the driving shaft 11 and the driven shaft 21, the radial stability of the driving shaft 11 and the driven shaft 21 is enhanced by the arrangement of the bearings 4, and the resistance of the driving shaft 11 and the driven shaft 21 to rotation is reduced, wherein two bearings 4 are disposed on the driving shaft 11 at a position between the driving wheel 12 and the driving bevel gear 13 at intervals, the two bearings 4 are sleeved on the outer sides of the driving shaft 11, and the outer sides of the two bearings 4 are respectively abutted against the side walls of the driving wheel 12 and the driving bevel gear 13; two bearings 4 are arranged on the driven shaft 21 at intervals at the position between the driven wheel 23 and the driven bevel gear 22, the two bearings 4 are sleeved on the outer side of the driving shaft 11, and the outer side of one bearing 4 is respectively abutted against the side wall of the driven bevel gear 22; the driven shaft 21 is provided with a bearing 4 at a position close to the fixed seat 33. In this embodiment, the bearings 4 are connected to the driving shaft 11 and the driven shaft 21 by an interference fit, and in other embodiments, the number of bearings 4 may be reduced as needed.
The working principle of the utility model is as follows:
when the driven bevel gear 22 receives the reverse thrust generated by the rear wheel, the driven bevel gear 22 is moved forwards, and the meshing is possibly not tight, so that the driven bevel gear 22 and the driving bevel gear 13 are worn in meshing transmission, at the moment, due to the existence of the thrust spring 32, when the driven bevel gear 22 is propelled, the elastic force of the thrust spring 32 can offset the reverse thrust, so that the driven bevel gear 22 is always kept still, the driven bevel gear 22 and the driving bevel gear 13 are always kept meshed, rigid collision is not generated, and the possibility of gear damage is reduced.
Example 2
As shown in fig. 8, an embodiment of the present utility model provides an engine transmission mechanism, which includes the bevel gear transmission mechanism as described in embodiment 1, specifically, the engine transmission mechanism further includes a crank link mechanism 6, a transmission assembly 7, and a reverse gear assembly 8, wherein an input end of the reverse gear assembly 8 is connected with the crank link mechanism 6 through the transmission assembly 7, and an output end of the reverse gear assembly 8 is in transmission connection with the drive bevel gear assembly 1.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (10)
1. The bevel gear transmission mechanism comprises a driving bevel gear assembly and a driven bevel gear assembly, and is characterized in that the driving bevel gear assembly comprises a driving shaft, one end of the driving shaft is sleeved with a driving wheel, and the other end of the driving shaft is provided with a driving bevel gear; the driven bevel gear assembly comprises a driven shaft, a driven bevel gear meshed with the driving bevel gear is arranged on the driven shaft, a driven wheel is sleeved at one end of the driven shaft, and a thrust assembly is arranged at the other end of the driving shaft.
2. The bevel gear transmission mechanism of claim 1 wherein the thrust assembly comprises a thrust cam sleeved on the driven shaft, wherein a thrust spring is arranged at one end of the thrust cam away from the driven bevel gear, and a fixed seat sleeved on the driven shaft is fixedly connected with the other end of the thrust spring.
3. The bevel gear transmission mechanism according to claim 2, wherein the driven shaft is provided with a protruding portion, the thrust cam is provided with a through hole, a plurality of concave portions matched with the protruding portion are arranged in the through hole, the plurality of concave portions are uniformly distributed in the through hole, the number of protruding portions corresponds to the number of concave portions, and the plurality of protruding portions are uniformly distributed on the outer peripheral surface of the driven shaft.
4. A bevel gear transmission according to claim 2 or claim 3 wherein the thrust cam includes a mounting block provided at an end of the thrust cam remote from the thrust spring.
5. The bevel gear transmission of claim 4 wherein said driven bevel gear includes a plurality of mounting slots that mate with said mounting blocks, wherein the number of said mounting slots corresponds to the number of said mounting blocks, and wherein said mounting blocks and said mounting slots are each arcuate in configuration.
6. The bevel gear transmission of claim 5 wherein said mounting blocks are spaced apart in a circumferential direction of said thrust cam.
7. The bevel gear transmission of claim 1 wherein bearings are provided on both the drive shaft and the driven shaft.
8. The bevel gear transmission of claim 1 wherein said driven bevel gear is mounted to said driven shaft by a mounting.
9. The bevel gear transmission of claim 1 wherein said driven shaft has raised teeth and said driven wheel has recessed teeth that mate with said raised teeth to connect said driven shaft to said driven wheel.
10. An engine transmission comprising a bevel gear transmission according to any one of claims 1 to 9; the engine transmission mechanism further comprises a crank connecting rod mechanism, a transmission assembly and a reverse gear assembly, wherein the input end of the reverse gear assembly is connected with the crank connecting rod mechanism through the transmission assembly, and the output end of the reverse gear assembly is in transmission connection with the drive bevel gear assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322414226.3U CN220770057U (en) | 2023-09-05 | 2023-09-05 | Bevel gear drive mechanism and engine drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322414226.3U CN220770057U (en) | 2023-09-05 | 2023-09-05 | Bevel gear drive mechanism and engine drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220770057U true CN220770057U (en) | 2024-04-12 |
Family
ID=90598008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322414226.3U Active CN220770057U (en) | 2023-09-05 | 2023-09-05 | Bevel gear drive mechanism and engine drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220770057U (en) |
-
2023
- 2023-09-05 CN CN202322414226.3U patent/CN220770057U/en active Active
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