CN208934794U

CN208934794U - A kind of engine and its transmission system for motor tricycle

Info

Publication number: CN208934794U
Application number: CN201821086657.4U
Authority: CN
Inventors: 李平; 李治兵; 刘礼辉; 王尚礼
Original assignee: CHONGQING WANHU MECHANICAL AND ELECTRICAL Co Ltd
Current assignee: CHONGQING WANHU MECHANICAL AND ELECTRICAL Co Ltd
Priority date: 2018-07-10
Filing date: 2018-07-10
Publication date: 2019-06-04
Anticipated expiration: 2028-07-10

Abstract

The utility model discloses a kind of engines of motor tricycle, including heat engine and as the crankshaft of heat engine power output member, it is characterized by: the crankshaft is longitudinally disposed and is divided into preceding crank and rear crank, the preceding crank rotates clockwise, the rear crank rotates counterclockwise, the preceding crank is sequentially connected with transmission shaft by least one level speed reducing gear pair, the transmission shaft exports backwards and is sequentially connected with output shaft by least a pair of of gear pair in output end, and the output shaft stretches out heat engine shell and connect with the dry clutch input terminal outside heat engine shell.Using the engine of the utility model, it can be improved the speed stability of engine, reduce cost.

Description

A kind of engine and its transmission system for motor tricycle

Technical field:

The utility model relates to the hairs in a kind of power system for motor tricycle more particularly to power system for motor tricycle Motivation.

Background technique:

It is substantially and is sent out using single cylinder based on the considerations of cost and the scope of application in the engine of current motor tricycle Motivation, crankshaft are all lateral setting, i.e., are arranged in parallel with rear axle, and the crankshaft output is laterally output.And in motor tricycle Among the field of the single-cylinder engine of vehicle, the right side for engine its crankshaft being laterally arranged is right crank as output end, Magneto is directly connected on the left of crankshaft, as left crank.By the right crank end of crankshaft, crank end is seen to the left, and right crank end is suitable Hour hands rotation, and crank end is seen to the right by the left crank end of crankshaft, left crank end is to rotate counterclockwise.

The arrangement of conventional single-cylinder engine described above in motor tricycle often along with problems, Such as cooperation precision is low, manufacturing cost is high, time-consuming and maintenance cost height, heat dissipation effect difference etc. for maintenance.

A kind of single-cylinder engine of motor tricycle is disclosed in Chinese patent ZL201721552445.6, and specific public Open that crankshaft is longitudinally disposed and front end exports, the left side of crankshaft is sequentially connected magneto, and right side is sequentially connected clutch.

However the arrangement in above-mentioned patent is the arrangement based on wet clutch, uses such arrangement side first Formula, torsional performance is poor, and speed stability is low.

For using motor tricycle, it is mostly as agricultural transporting that use groups, which are more special, Machinery uses, that is to say, that its load-carrying is larger, needs high torque for drawing crops or other cargos.And work as load-carrying It hauls goods when climbing, needs to reduce revolving speed and obtained higher torsional performance, but in actual use situation, due to existing Speed stability is low, torsional performance is poor, and needing frequently to shift gears just is able to achieve the matching of revolving speed and torque, can reach load The performance of weight climbing.And long-term shift be not only not easy to driver operation, it is often more important that be also easy to generate maloperation, Or operation leads to not pull weight not in time.

In addition, when using the single-cylinder engine in above-mentioned patent, it is also necessary to guarantee that it can adapt to existing market, such as Fruit merely because the change of engine and need to change associated all components, then coming for enterprise or consumer It says, cost is all immeasurable, even and need to use other redesigned and the related component of engine, It cannot be guaranteed that therefore the performance of newly-designed component while changing engine, will guarantee as far as possible not better than pervious component It can be related to other component related with engine.

Utility model content:

The purpose of this utility model is to provide a kind of high and at low cost engine for motorcycle of speed stability and Its dynamical system.

In order to achieve the above object, the utility model is realized in this way: a kind of engine of motor tricycle, including heat Machine and crankshaft as heat engine power output member, it is characterised in that: the crankshaft it is longitudinally disposed and be divided into preceding crank and after Crank, the preceding crank rotate clockwise, and the rear crank rotates counterclockwise, and the preceding crank passes through at least one level reduction gearing Auxiliary driving is connected with transmission shaft, and the transmission shaft is exported backwards and is sequentially connected in output end by least a pair of of gear pair defeated Shaft, the output shaft stretch out heat engine shell and connect with the dry clutch input terminal outside heat engine shell.By above-mentioned setting, It can be improved engine peed stable and torsional performance, and using the engine of aforesaid way setting, can be adapted to existing Gearbox, rear axle etc., reduce costs.

In order to further reduce the cost, the crankshaft passes through the primary speed-down gear pair transmission connection transmission shaft.

In order to improve stability, the transmission shaft output end passes through a pair of of tumbler gear auxiliary driving and connects the output shaft.

In order to improve stability, the output shaft and the crankshaft are located at same straight line in vertical view.It is set using such Mode is set, can be realized and set output in engine, improves the stability of motor tricycle operation.

In order to further increase compactedness, the reversing shaft is arranged on the right side of crankshaft.

In order to further increase compactedness, be sequentially connected magneto on the left of the preceding crank of the crankshaft.

In order to realize modularized design, maintenance efficiency is improved, is passed on the left of the preceding crank of the crankshaft by one-stage gear pair It is dynamic to be connected with and the magneto is installed in jackshaft, the front end of the jackshaft.

In order to further decrease vibration, driver comfort, the transmission ratio of the gear pair between preceding crank and jackshaft are improved It is 1, balance weight is additionally provided on jackshaft.

Preferably, the balance weight is the fixed fan-shaped block being set on the jackshaft；The sector of the balance weight The center line of block is consistent with the center line installation direction of crankshaft crank.

In order to further increase heat dissipation effect, it is provided on the periphery wall of the dry clutch and circumferentially or axially sets The cooling fin set.

In order to further decrease weight, the driving disc spacing pressing of the dry clutch uses stamping parts.

A kind of transmission system of motor tricycle, including engine described above, the dry clutch of the engine Output end and transmission input be sequentially connected, the transmission output connect with rear axle drive.

Wherein, according to the common knowledge of those of ordinary skill in the art, " longitudinal direction " described in the utility model refers to three The driving direction of wheeled motorcycle, with a side of motor tricycle headstock for " preceding ", with a side of the motor tricycle tailstock for " rear ", The left and right sides is respectively " left side " and " right side ", and left and right side is then " transverse direction "." vertical view ", which then refers to, motor tricycle roof To the view direction at vehicle bottom.

In addition, " preceding crank rotates clockwise " described in the utility model refers to sees crankshaft from front to back, crankshaft is suitable Hour hands rotation；" rear crank rotates counterclockwise " refers to sees crankshaft from back to front, and crankshaft is to rotate counterclockwise.

The utility model has the advantages that

1, stabilization of speed, torque is steady, can infrequently shift gears, and realizes the matched of revolving speed and torque；

2, the component modelsization such as heat engine, clutch, transmission, magneto design, and are easily installed disassembly, easy to repair and replace It changes and maintenance cost is low；

3, the heat dissipation effect of heat engine and clutch is more preferable, and improves the time that uses of machine oil, and guarantee machine oil is completely suitable It is sliding；

4, dry clutch lightweight has heat radiating fins, and further improves heat dissipation effect；

5, bevel gear is reduced, the requirement of cooperation precision is reduced, reduces cost.

6, using the engine of the utility model, other than the advantage more than have, additionally it is possible to match institute on existing market Some speed changers and rear axle, and the Trimotorcycle frame on existing market can be matched, it can be avoided speed changer, rear axle and vehicle The components such as frame improve, and save cost to the greatest extent.

Detailed description of the invention:

Fig. 1 is the power system architecture figure of the utility model.

Specific embodiment:

Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, but the utility model These embodiments are not limited to, any improvement or replacement on the present embodiment essence spirit still falls within the utility model Claim range claimed.

Embodiment 1: as shown in Figure 1, a kind of engine of motor tricycle, including heat engine 1 and defeated as heat engine power The crankshaft 2 of part out, the crankshaft is longitudinally disposed and is divided into preceding crank and rear crank, and the preceding crank rotates clockwise, described Rear crank rotates counterclockwise, and the preceding crank is sequentially connected with transmission shaft 10, the transmission by least one level speed reducing gear pair Axis exports backwards and is sequentially connected with output shaft 11 by least a pair of of gear pair in output end, and the output shaft stretches out heat engine shell Body is simultaneously connect with 4 input terminal of dry clutch outside heat engine shell.

Wherein, the speed reducing gear pair being arranged between the preceding crank and transmission shaft can be with level-one (i.e. a pair of), two-stage (i.e. two It is right) or more stages, but in the present embodiment, considered based on space etc., level-one is only set between preceding crank and transmission shaft Speed reducing gear pair 31.

Settable a pair of gear pair, two pairs of gear pairs or three pairs or more between the transmission shaft 10 and the output shaft 11 Gear pair, but in this embodiment, the gear pair being arranged between the transmission shaft and output shaft is only a pair.And this is right Gear pair 32 has deceleration, meanwhile, output shaft is coaxially set with crankshaft gear pair by this.

A kind of transmission system of motor tricycle, including engine described in the present embodiment, the dry type of the engine Output end, that is, flywheel of clutch and the input terminal of 7 assembly of speed changer are sequentially connected, the transmission assembly output end and rear axle 8 Transmission connection.

Wherein, the speed changer in the present embodiment is purchased from Co., Ltd, Chongqing Longwang Electromechanical Limited Liability Company, can use the said firm V4 speed changer, V2 speed changer or other models speed changer, more actual slewing range selected.

In addition, set-up mode through this embodiment, it is ensured that the crankshaft of heat engine be in set output, can guarantee heat engine The axis of crankshaft is located at the center of rear axle, so that the left half axle of rear axle is consistent with right axle shaft length, so that differential mechanism is located at rear axle Center avoids improving driving safety because of the danger such as "Left"-deviationist caused by when vehicle is turned.Wherein, the rear axle in the present embodiment It also is available from Chongqing Longwang Electromechanical Limited Liability Company.

Using the engine and speed changer of the present embodiment, motor tricycle stabilization of speed is enabled to, torque is steady, can be with It infrequently shifts gears, realizes the matched of revolving speed and torque.

And the component modelsization such as heat engine, clutch, transmission, magneto design in the present embodiment, are easily installed disassembly, It is easy to repair low with replacement and maintenance cost；

In addition, the reduction bevel gear in the present embodiment, reduces the requirement of cooperation precision, reduces cost.

And it can be adapted to existing using the engine of aforesaid way setting without adding gear pair in gearbox Gearbox, rear axle etc., reduce costs.

Embodiment 2: as shown in Figure 1, a kind of engine of motor tricycle, including heat engine 1 and defeated as heat engine power The crankshaft 2 of part out, the crankshaft is longitudinally disposed and is divided into preceding crank and rear crank, and the preceding crank rotates clockwise, described Rear crank rotates counterclockwise, and the preceding crank is sequentially connected with transmission shaft 10, the transmission by least one level speed reducing gear pair Axis exports backwards and is sequentially connected with output shaft 11 by least a pair of of gear pair in output end, and the output shaft stretches out heat engine shell Body is simultaneously connect with 4 input terminal of dry clutch outside heat engine shell.

As another embodiment in the present embodiment, the crankshaft is also sequentially connected with magneto 6, and the magneto is logical The jackshaft 5 for passing through a pair of of gear pair transmission connection with preceding crank is crossed to drive, the front end of the jackshaft directly with magneto Input terminal connection.

Wherein, the transmission shaft and jackshaft can be arranged on the left of crankshaft simultaneously, right side perhaps downside or sets up song separately The different side of axis, in the present embodiment, the compactedness based on topology layout, the transmission shaft are arranged on the right side of the crankshaft, And the jackshaft is arranged on the left of crankshaft.

As another embodiment of the present embodiment, balance weight 51 is also provided on the jackshaft to be made as balance shaft With, specifically, the transmission ratio of the gear pair between preceding crank and jackshaft be 1, balance weight is additionally provided on jackshaft；Institute Stating balance weight is the fixed fan-shaped block being set on the jackshaft；The center line and crankshaft of the fan-shaped block of the balance weight The center line installation direction of crank is consistent.

As another embodiment in the present embodiment, starting motor 9, the starting motor are provided on the left of the heat engine Output shaft be sequentially connected with the gear wheel of duplex-gear one, the pinion drive of the duplex-gear one is connected with the big of duplex-gear two Gear, the pinion gear and starting deep bid tooth transmission connection, the starting deep bid tooth of the duplex-gear two are opened with fixed on crankshaft Moving gear is sequentially connected and the starting large fluted disc is located on the magneto and is placed on the jackshaft.

As another embodiment of the present embodiment, be provided on the periphery wall of the dry clutch circumferentially or The driving disc spacing pressing of the cooling fin being axially arranged, the dry clutch uses stamping parts.

Using the flywheel being stamped to form, the weight of dry clutch is not only reduced, and dry type clutch can also be improved The heat dissipation effect of device.And the dry clutch, shell are connected by screw to heat engine shell.

A kind of transmission system of motor tricycle, including engine described in the present embodiment, the preceding crank of the engine By the way that, with transmission axis connection, the transmission shaft is connected with exporting axis by a pair of of gear pair, described after primary speed-down gear pair Output shaft stretches out heat engine shell and the input terminal of dry clutch connects, and drives speed changer 7 by the flywheel of dry clutch Rotation, and speed changer then drives rear axle 8 to rotate.

Using the engine and speed changer of the present embodiment, motor tricycle stabilization of speed is enabled to, torque is steady, can be with It infrequently shifts gears, realizes the matched of revolving speed and torque.And heat engine, clutch, transmission, magneto etc. in the present embodiment Component modelsization design is easily installed disassembly, easy to repair low with replacement and maintenance cost, in addition, the reduction in the present embodiment Bevel gear reduces the requirement of cooperation precision, reduces cost.

More importantly the special designing of the dry clutch in through this embodiment, enable dry clutch Cross-cutting is used in motor tricycle field (being only used in automotive field in the past), so that the heat dissipation effect of heat engine and clutch More preferably, and improve machine oil use the time, guarantee machine oil it is completely smooth.

Claims

1. a kind of engine of motor tricycle, including heat engine and as the crankshaft of heat engine power output member, it is characterised in that: The crankshaft is longitudinally disposed and crank and rear crank, the preceding crank rotate clockwise before being divided into, and the rear crank is counterclockwise Rotation, the preceding crank are sequentially connected with transmission shaft by least one level speed reducing gear pair, the transmission shaft export backwards and Output end is sequentially connected with output shaft by least a pair of of gear pair, the output shaft stretch out heat engine shell and with outside heat engine shell Dry clutch input terminal connection.

2. engine as described in claim 1, it is characterised in that: the crankshaft passes through primary speed-down gear pair transmission connection institute State transmission shaft.

3. engine as claimed in claim 1 or 2, it is characterised in that: the transmission shaft output end passes through a pair of of tumbler gear Auxiliary driving connects the output shaft.

4. engine as claimed in claim 1 or 2, it is characterised in that: the output shaft is located in vertical view with the crankshaft Same straight line.

5. engine as claimed in claim 3, it is characterised in that: the output shaft is located in vertical view same with the crankshaft Straight line.

6. engine as claimed in claim 1 or 2, it is characterised in that: the reversing shaft is arranged on the right side of crankshaft.

7. engine as claimed in claim 3, it is characterised in that: the reversing shaft is arranged on the right side of crankshaft.

8. engine as claimed in claim 4, it is characterised in that: the reversing shaft is arranged on the right side of crankshaft.

9. engine as claimed in claim 5, it is characterised in that: the reversing shaft is arranged on the right side of crankshaft.

10. engine as claimed in claim 1 or 2, it is characterised in that: be sequentially connected magnetoelectricity on the left of the preceding crank of the crankshaft Machine.

11. engine as claimed in claim 3, it is characterised in that: be sequentially connected magneto on the left of the preceding crank of the crankshaft.

12. engine as claimed in claim 4, it is characterised in that: be sequentially connected magneto on the left of the preceding crank of the crankshaft.

13. engine as claimed in claim 5, it is characterised in that: be sequentially connected magneto on the left of the preceding crank of the crankshaft.

14. engine as claimed in claim 6, it is characterised in that: be sequentially connected magneto on the left of the preceding crank of the crankshaft.

15. engine as claimed in claim 7, it is characterised in that: be sequentially connected magneto on the left of the preceding crank of the crankshaft.

16. engine as claimed in claim 8, it is characterised in that: be sequentially connected magneto on the left of the preceding crank of the crankshaft.

17. engine as claimed in claim 9, it is characterised in that: be sequentially connected magneto on the left of the preceding crank of the crankshaft.

18. engine as claimed in claim 10, it is characterised in that: pass through one-stage gear pair on the left of the preceding crank of the crankshaft It is sequentially connected with and the magneto is installed in jackshaft, the front end of the jackshaft.

19. the engine as described in claim 11,12,13,14,15,16 or 17, it is characterised in that: the preceding song of the crankshaft It is connected on the left of handle by one-stage gear auxiliary driving and the magneto is installed in jackshaft, the front end of the jackshaft.

20. engine as claimed in claim 18, it is characterised in that: the transmission ratio of the gear pair between preceding crank and jackshaft It is 1, balance weight is additionally provided on jackshaft.

21. engine as claimed in claim 19, it is characterised in that: the transmission ratio of the gear pair between preceding crank and jackshaft It is 1, balance weight is additionally provided on jackshaft.

22. the engine as described in claim 20 or 21, it is characterised in that: the balance weight is that fixation is set in the centre Fan-shaped block on axis；The center line of the fan-shaped block of the balance weight and the center line installation direction of crankshaft crank are consistent.

23. engine as claimed in claim 1 or 2, it is characterised in that: be provided on the periphery wall of the dry clutch The cooling fin circumferentially or being axially arranged.

24. engine as claimed in claim 3, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

25. engine as claimed in claim 4, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

26. engine as claimed in claim 5, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

27. engine as claimed in claim 6, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

28. engine as claimed in claim 7, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

29. engine as claimed in claim 8, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

30. engine as claimed in claim 9, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

31. engine as claimed in claim 10, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

32. engine as claimed in claim 11, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

33. engine as claimed in claim 12, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

34. engine as claimed in claim 13, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

35. engine as claimed in claim 14, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

36. engine as claimed in claim 15, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

37. engine as claimed in claim 16, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

38. engine as claimed in claim 17, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

39. engine as claimed in claim 18, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

40. engine as claimed in claim 19, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

41. engine as claimed in claim 20, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

42. engine as claimed in claim 21, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

43. engine as claimed in claim 22, it is characterised in that: be provided with edge on the periphery wall of the dry clutch Cooling fin circumferential or being axially arranged.

44. engine as claimed in claim 1 or 2, it is characterised in that: the driving disc spacing pressing of the dry clutch uses punching press Part.

45. engine as claimed in claim 3, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

46. engine as claimed in claim 4, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

47. engine as claimed in claim 5, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

48. engine as claimed in claim 6, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

49. engine as claimed in claim 7, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

50. engine as claimed in claim 8, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

51. engine as claimed in claim 9, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

52. engine as claimed in claim 10, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

53. engine as claimed in claim 11, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

54. engine as claimed in claim 12, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

55. engine as claimed in claim 13, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

56. engine as claimed in claim 14, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

57. engine as claimed in claim 15, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

58. engine as claimed in claim 16, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

59. engine as claimed in claim 17, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

60. engine as claimed in claim 18, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

61. engine as claimed in claim 19, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

62. engine as claimed in claim 20, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

63. engine as claimed in claim 21, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

64. engine as claimed in claim 22, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

65. engine as claimed in claim 23, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

66. engine as claimed in claim 24, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

67. engine as claimed in claim 25, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

68. engine as claimed in claim 26, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

69. engine as claimed in claim 27, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

70. engine as claimed in claim 28, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

71. engine as claimed in claim 29, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

72. engine as claimed in claim 30, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

73. engine as claimed in claim 31, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

74. engine as claimed in claim 32, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

75. engine as claimed in claim 33, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

76. engine as claimed in claim 34, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

77. engine as claimed in claim 35, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

78. engine as claimed in claim 36, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

79. engine as claimed in claim 37, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

80. engine as claimed in claim 38, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

81. engine as claimed in claim 39, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

82. engine as claimed in claim 40, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

83. engine as claimed in claim 41, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

84. engine as claimed in claim 42, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

85. engine as claimed in claim 43, it is characterised in that: the driving disc spacing pressing of the dry clutch uses stamping parts.

86. a kind of transmission system of motor tricycle, it is characterised in that: including starting described in any of the above-described claim Machine, the output end and transmission input of the dry clutch of the engine are sequentially connected, and the transmission output is with after Bridge transmission connection.