Motorcycle fixing structure capable of replacing engine model

Abstract

The invention relates to the technical field of motorcycle engine fixing devices, in particular to a motorcycle fixing structure capable of replacing engine models, which comprises a motorcycle inner fixing mechanism used for being mounted on a motorcycle frame and comprising a second bottom plate and a driving mechanism, the driving mechanism enables the second bottom plate to deflect left and right or deflect up and down or horizontally move left and right; the motorcycle further comprises an engine installation plate, the box cover is fixedly installed on the engine installation plate, and the engine installation plate is fixedly installed on the second bottom plate, so that the driving mechanism drives a driving shaft on the box cover to deflect left and right or vertically or adjusts the tightness of a chain of a chain gear on an engine driving shaft installed on a motorcycle frame. According to the device, the front-back deflection angle and the left-right deflection angle of a new installed motorcycle engine driving shaft can be conveniently adjusted through a driving mechanism, a transmission chain can be conveniently installed, and therefore the efficiency and accuracy of installing new engine models by personnel are improved.

Description

Technical Field

[0001] The invention relates to the field of motorcycle engine fixing devices, and in particular to a motorcycle fixing structure capable of replacing engine models. Background Art

[0002] A motorcycle engine is a machine that ignites the fuel mixture that enters the cylinder, converts the heat energy generated by its combustion into mechanical energy, and transmits the power to the rear wheel of the motorcycle through the driving shaft and the chain gear on the driving shaft through the chain, thus converting it into the driving power of the vehicle.

[0003] The engine shapes and specifications of different motorcycle models are different.

[0004] A new motorcycle engine can be replaced on a motorcycle. Usually, the motorcycle engine is installed on the motorcycle frame through a suspension system. However, when installing different motorcycle engines, it is necessary to adjust the display angle of the driving shaft of the motorcycle engine so that the chain gear on the driving shaft is connected with the chain gear on the rear wheel through the chain at a good angle. The angles that need to be displayed are the front and rear deflection angles and the left and right deflection angles. And the chain needs to be reinstalled when replacing a new motorcycle engine. The above operations will make it take a lot of time when replacing a new motorcycle engine model, and manual installation may not be so accurate.

[0005] To this end, we designed a motorcycle fixing structure that can replace the engine model. Through a driving mechanism, it is easy to adjust the front and rear deflection angles and left and right deflection angles of the driving shaft of the newly installed motorcycle engine, and it is easy to install the transmission chain, thereby improving the efficiency and accuracy of personnel installing the new engine model. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the prior art. The present invention proposes a motorcycle fixing structure capable of replacing the engine model. A driving mechanism can be used to facilitate adjustment of the front and rear deflection angles and left and right deflection angles of the driving shaft of the newly installed motorcycle engine, as well as installation of a transmission chain, thereby improving the efficiency and accuracy of personnel installing the new engine model.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: a motorcycle fixing structure capable of changing engine models, comprising:

[0008] A motorcycle internal fixing mechanism, used for being mounted on a motorcycle frame, comprising a second bottom plate and a driving mechanism, wherein the driving mechanism causes the second bottom plate to deflect leftward or rightward, deflect up and down, or move leftward or rightward horizontally;

[0009] It also includes an engine mounting plate, the motorcycle engine is fixedly mounted on the engine mounting plate, and the engine mounting plate is fixedly mounted on the second bottom plate, so that the driving mechanism drives the driving shaft on the motorcycle engine to deflect left and right or up and down or adjust the chain tightness of the chain gear on the engine driving shaft installed on the motorcycle frame.

[0010] Preferably, the driving mechanism includes a left-right deflection mechanism, an up-down deflection mechanism, and a left-right horizontal movement mechanism.

[0011] Preferably, the left-right horizontal movement mechanism enables the driving shaft on the motorcycle engine and the chain gear on the driving shaft to move horizontally left-right, so as to adjust the tightness of the chain of the chain gear on the driving shaft. The left-right horizontal movement mechanism comprises a box cover, a third threaded rod is rotatably connected between the inner walls on both sides of the box cover, a second limiting slide is threadedly connected to the outer wall of the third threaded rod, the second limiting slide is slidably connected to the inner wall of the box cover left-right, a second rotating column is arranged on the second limiting slide, and the second rotating column is fixedly connected to the second bottom plate;

[0012] A first fixing plate is fixedly connected inside the box cover, a first spline shaft is limitedly rotatably connected between the first fixing plate and the box cover, a first spline shaft sleeve is limitedly slidably connected to the outer wall of the first spline shaft left and right, a third limiting slide plate is limitedly rotatably connected to the outer wall of the first spline shaft sleeve, the third limiting slide plate is limitedly slidably connected inside the box cover, a second electric telescopic rod is fixedly installed on the box cover, and a telescopic end of the second electric telescopic rod is fixedly connected to the third limiting slide plate;

[0013] A servo motor is fixedly mounted on the first fixed plate, and a power output end of the servo motor is connected to the first spline shaft;

[0014] The outer wall of the first spline sleeve is fixedly connected with a third gear, the outer wall of the third threaded rod is fixedly connected with a fourth gear, and the third gear can mesh with the fourth gear.

[0015] Preferably, the front-rear deflection mechanism comprises two second side plates, an auxiliary connecting plate is fixedly connected between the tops of the two second side plates, a third spline sleeve and a second spline sleeve are respectively connected to the two second side plates in a limited rotational manner, the outer walls of the third spline sleeve and the second spline sleeve are both fixedly connected to a swing rod, the bottoms of the two swing rods are commonly fixedly connected to a third bottom plate, the third bottom plate is connected to the second rotating column in a limited rotational manner, and the second bottom plate is fixedly mounted on the bottom of the second rotating column;

[0016] The auxiliary connecting plate is fixedly mounted with a first electric telescopic rod, the telescopic end of the first electric telescopic rod is connected with a second bearing seat, the second bearing seat is limitedly slidably connected to the auxiliary connecting plate, a fourth spline shaft sleeve is limitedly rotatably connected in the second bearing seat, a second spline shaft is limitedly slidably connected in the fourth spline shaft sleeve, the first electric telescopic rod is extended to drive the fourth spline shaft sleeve to move to one side and make the spline strips distributed on the circumference of the outer wall thereof limitedly slidably connected in the second spline shaft sleeve, so as to drive the second rotating column and the second bottom plate to deflect forward and backward;

[0017] The second limiting slide is rotatably connected to the first rotating column, the second limiting slide is provided with a rotating mechanism that enables the first rotating column to rotate, the second limiting slide is fixedly connected to the first mounting plate, the first mounting plate is fixedly connected to the first bearing seat, the first rotating column is limited and rotatably connected in the first bearing seat, two second fixed plates are fixedly connected to the first bearing seat, the two second fixed plates are fixedly connected to one of the second side plates, and one end of the second spline shaft is fixedly connected to one end of the first rotating column.

[0018] Preferably, the rotating mechanism includes a second threaded rod, a second threaded rod is connected to the inner wall of the box cover for limited rotation, the outer wall of the second threaded rod is threadedly connected to the first limiting slide, the first limiting slide is connected to the box cover for limited sliding left and right, the outer wall of the second threaded rod is fixedly connected to the second gear and the first gear, the third gear can be meshed with the first gear and the fourth gear at the same time, and the third gear can be meshed with the second gear separately, the outer wall of the second limiting slide is connected to the fourth limiting slide for upward and downward sliding, the fourth limiting slide is hinged with a hinged rod to the first limiting slide, the fourth limiting slide is fixedly connected to the rack, the outer wall of the first rotating column is fixedly connected to the fifth gear, and the fifth gear and the rack are meshed with each other.

[0019] Preferably, the front-rear deflection mechanism includes a third bearing seat, the auxiliary connecting plate is fixedly connected to the third bearing seat, a fifth spline sleeve is limitedly rotatably connected in the third bearing seat, the outer wall of the fifth spline sleeve is fixedly connected to the first bevel gear, the first electric telescopic rod contracts to drive the fourth spline sleeve to move to the other side and makes the spline strips distributed on the circumference of the outer wall of the fourth spline sleeve limitedly slide in the fifth spline sleeve, so as to drive the fifth spline sleeve and the first bevel gear to rotate;

[0020] The top of the second rotating column is fixedly connected with a second bevel gear, and the first bevel gear and the second bevel gear are meshed with each other to drive the second bottom plate to deflect left and right.

[0021] Preferably, it further includes a stabilizing mechanism for maintaining the adjusted second bottom plate in a stable state, the stabilizing mechanism including two first side plates, the two first side plates are respectively fixedly mounted on the outer wall of the box cover, and the bottoms of the two first side plates are commonly connected to a first bottom plate, the first bottom plate is placed at the bottom of the box cover, and the first bottom plate is provided with a first frame groove, a second frame groove, and a third frame groove;

[0022] First threaded rods are fixedly connected to both sides of the top of the second bottom plate, and the two first threaded rods respectively penetrate the first frame groove and the third frame groove, and two nuts are threadedly connected to the first threaded rods, and the two nuts are respectively placed on the top and bottom of the first bottom plate, so as to stably mount the second bottom plate on the first bottom plate;

[0023] The second rotating column passes through the second frame groove.

[0024] Preferably, after the second rotating column is adjusted to a preset position, the bottom of the box cover is shielded by a waterproof film.

[0025] Preferably, the fifth spline sleeve is provided with a second electromagnetic brake, and the second spline sleeve is provided with a first electromagnetic brake.

[0026] Preferably, it further comprises a controller, wherein the controller is electrically connected to the second electromagnetic brake, the first electromagnetic brake, the first electric telescopic rod, and the second electric telescopic rod.

[0027] Compared with the prior art, the beneficial effects of the present invention include:

[0028] The device can adjust the left and right angle deflection and front and rear angle deflection of the driving shaft of the motorcycle engine, and can adjust the chain tightness of the chain gear on the driving shaft by only one driving motor; the engine driving shaft can be deflected left and right and front and rear, so that motorcycle engines of different models can be displayed at a good angle after installation, so as to facilitate the connection with the motorcycle rear wheel chain gear through the chain sleeve; and the motorcycle engine can be moved horizontally left and right, so that when a new motorcycle engine is replaced, it is convenient to install the chain connected to the rear wheel and adjust the tightness of the chain; compared with the traditional mechanical twisting angle adjustment method, the present invention can adjust the motorcycle engine to a preset angle more accurately and stably, and can also relatively accurately adjust the subsequent chain tightness, that is, it combines a variety of necessary adjustment means, and only needs one motor to achieve it, so that it is convenient for personnel to operate and improve the efficiency of installing new models of motorcycle engines. Compared with the traditional twisting adjustment method for realizing this technology, the present device is relatively easier to operate and occupies less space, so that the motorcycle as a whole can be displayed in a more beautiful state. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The disclosure of the present invention is explained with reference to the accompanying drawings. It should be understood that the accompanying drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components.

[0030] in:

[0031] Figure 1 A schematic diagram showing the structure of the device of the present invention is shown;

[0032] Figure 2 A schematic diagram showing the structure of the internal fixing mechanism of a motorcycle of the present invention;

[0033] Figure 3 A schematic structural diagram showing a first viewing angle of the top of the see-through box cover of the motorcycle internal fixing mechanism of the present invention;

[0034] Figure 4 A schematic diagram showing the structure of the motorcycle internal fixing mechanism of the present invention from a second viewing angle of the top of the see-through box cover;

[0035] Figure 5 A schematic structural diagram showing a perspective case cover top and two side panels of a motorcycle internal fixing mechanism of the present invention;

[0036] Figure 6 The present invention shows Figure 3 Schematic diagram of the upper enlarged structure;

[0037] Figure 7 The present invention shows Figure 6 A schematic diagram of the enlarged structure at point A;

[0038] Figure 8 The present invention shows Figure 4 A schematic diagram of the enlarged structure at B;

[0039] Fig. 9 The present invention shows Figure 5 A schematic diagram of the enlarged structure at C;

[0040] Fig.10 The present invention shows Fig. 9 Enlarged structural diagram at D.

[0041] Numbers in the figure: 1, motorcycle engine; 2, box cover; 3, first bottom plate; 4, first side plate; 5, first threaded rod; 6, nut; 7, second bottom plate; 8, engine mounting plate; 9, first frame groove; 10, second frame groove; 11, third frame groove; 12, second threaded rod; 13, first gear; 14, third threaded rod; 15, second gear; 16, first limit slide; 17, second limit slide; 18, first fixed plate; 19, servo motor; 20, third limit slide; 21, first spline shaft sleeve; 22, third gear; 23, first spline shaft; 24, fourth gear; 25, hinged rod; 26, first mounting plate ; 27. First bearing seat; 28. First rotating column; 29. ​​Fifth gear; 30. Rack; 31. Fourth limiting slide plate; 32. Second fixed plate; 33. Second electric telescopic rod; 34. Second spline sleeve; 35. Second side plate; 36. Auxiliary connecting plate; 37. Third spline sleeve; 38. Rocker rod; 39. Third bottom plate; 40. Second rotating column; 41. First electric telescopic rod; 42. Second bearing seat; 43. Fourth spline sleeve; 44. First electromagnetic brake; 45. First bevel gear; 46. Fifth spline sleeve; 47. Second electromagnetic brake; 48. Third bearing seat; 49. Second spline shaft; 50. Second bevel gear. DETAILED DESCRIPTION

[0042] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.

[0043] Embodiment 1:

[0044] Key References Figure 1-6 The device mainly includes a box cover 2, a motorcycle engine 1, a second base plate 7, an engine mounting plate 8, and a second rotating column 40.

[0045] This embodiment mainly describes how to adjust the tightness of the chain on the chain gear on the driving shaft after different types of motorcycle engines are installed on the motorcycle frame.

[0046] The box cover 2 is a box body with an opening at the bottom. It is fixedly mounted on the motorcycle frame, and when the model of the motorcycle engine 1 is subsequently changed, operations are all performed on the box cover 2.

[0047] A third threaded rod 14 is rotatably connected between the left and right inner walls of the box cover 2, and a second limiting slide 17 is threadedly connected to the outer wall of the third threaded rod 14. The second limiting slide 17 is slidably connected to the inner wall of the box cover 2 in a left and right limited manner. A second rotating column 40 is arranged on the second limiting slide 17, and a second bottom plate 7 is fixedly connected to the bottom of the second rotating column 40.

[0048] The top of the motorcycle engine 1 is fixedly mounted with an engine mounting plate 8, and different types of box covers 2 are fixedly mounted on the engine mounting plate 8 in the outside world. Then the engine mounting plate 8 is installed at the bottom of the second base plate 7.

[0049] Key References Figure 6 A first fixed plate 18 is fixedly connected inside the box cover 2, a first spline shaft 23 is limitedly rotated and connected between the first fixed plate 18 and the right inner wall of the box cover 2, the outer wall of the first spline shaft 23 is limitedly slidably connected to the first spline sleeve 21, the outer wall of the first spline sleeve 21 is limitedly rotated and connected to the third limiting slide plate 20, the third limiting slide plate 20 is limitedly slidably connected to the inner wall of the box cover 2, a second electric telescopic rod 33 is fixedly installed on the inner wall of the box cover 2, and the telescopic end of the second electric telescopic rod 33 is fixedly connected to the third limiting slide plate 20.

[0050] A servo motor 19 is fixedly mounted on the first fixing plate 18 , and a power output end of the servo motor 19 is connected to the first spline shaft 23 .

[0051] A third gear 22 is fixedly connected to the outer wall of the first spline sleeve 21 , and a fourth gear 24 is fixedly connected to the outer wall of the third threaded rod 14 . The third gear 22 and the fourth gear 24 can mesh with each other.

[0052] The second electric telescopic rod 33 is started so that the third gear 22 and the fourth gear 24 are meshed with each other. At this time, the servo motor 19 is started again so that the second limit slide plate 17 drives the motorcycle engine 1 to move horizontally left and right, thereby making the chain gear of the driving shaft of the motorcycle engine 1 move horizontally left and right, thereby adjusting the tightness of the chain on the chain gear of the driving shaft.

[0053] Embodiment 2: Based on Embodiment 1, a technical effect is added in which the front, rear, left, and right deflection angles of the driving shaft of the motorcycle engine 1 can be adjusted, so that the chain gear on the driving shaft of the motorcycle engine 1 can drive the chain safely and stably.

[0054] This embodiment mainly includes a second side plate 35 , an auxiliary connecting plate 36 , and a first rotating column 28 .

[0055] Key References Figure 7-10An auxiliary connecting plate 36 is fixedly connected between the tops of the two second side plates 35, and the third spline sleeve 37 and the second spline sleeve 34 are respectively connected to the left and right second side plates 35 for limited rotation. The outer walls of the third spline sleeve 37 and the second spline sleeve 34 are fixedly connected to a rocker arm 38, and the bottoms of the two rocker arms 38 are commonly fixedly connected to a third bottom plate 39, and the middle part of the third bottom plate 39 is limitedly connected to the second rotating column 40 for limited rotation, and the second bottom plate 7 is fixedly installed on the bottom of the second rotating column 40.

[0056] A first electric telescopic rod 41 is fixedly mounted on the auxiliary connecting plate 36, and a second bearing seat 42 is connected to the telescopic end of the first electric telescopic rod 41, and the second bearing seat 42 is slidably connected to the auxiliary connecting plate 36 in a left-right limited position, and a fourth spline shaft sleeve 43 is rotatably connected in the second bearing seat 42, and a second spline shaft 49 is slidably connected in the fourth spline shaft sleeve 43 in a limited position, and the second spline shaft 49 is placed inside the second spline shaft sleeve 34, and the second spline shaft 49 does not contact the inner cavity of the second spline shaft sleeve 34. The first electric telescopic rod 41 extends to drive the fourth spline shaft sleeve 43 to move to one side and make the spline strips distributed on the circumference of its outer wall limitedly slidably connected to the second spline shaft sleeve 34, which is used to drive the second rotating column 40 and the second bottom plate 7 to deflect forward and backward, so that the box cover 2 can adjust the deflection angle forward and backward.

[0057] A third bearing seat 48 is fixedly connected to the auxiliary connecting plate 36, and a fifth spline sleeve 46 is rotatably connected to the inner part of the third bearing seat 48. The outer wall of the fifth spline sleeve 46 is fixedly connected to the first bevel gear 45. The contraction of the first electric telescopic rod 41 drives the fourth spline sleeve 43 to move to the other side and makes the spline strips distributed on the circumference of the outer wall of the fourth spline sleeve 43 slide in the fifth spline sleeve 46 to drive the fifth spline sleeve 46 and the first bevel gear 45 to rotate.

[0058] The second bevel gear 50 is fixedly connected to the top of the second rotating column 40 , and the first bevel gear 45 meshes with the second bevel gear 50 to drive the second bottom plate 7 to deflect left and right, thereby adjusting the deflection angle of the box cover 2 to the left and right.

[0059] The second limiting slide plate 17 is rotatably connected to the first rotating column 28 in an upper limit position.

[0060] The second threaded rod 12 is connected to the inner wall of the box cover 2 for limited rotation, the outer wall of the second threaded rod 12 is threadedly connected to the first limit slide 16, the first limit slide 16 is connected to the box cover 2 for limited sliding left and right, the outer wall of the second threaded rod 12 is fixedly connected to the second gear 15 and the first gear 13, the third gear 22 can mesh with the first gear 13 and the fourth gear 24 at the same time, and the third gear 22 can mesh with the second gear 15 alone, the outer wall of the second limit slide 17 is connected to the fourth limit slide 31 for sliding up and down, the fourth limit slide 31 is hinged with the first limit slide 16 by the hinge rod 25, the fourth limit slide 31 is fixedly connected to the rack 30, the second limit slide 17 is connected to the first rotation column 28 for limited rotation, the outer wall of the first rotation column 28 is fixedly connected to the fifth gear 29, and the fifth gear 29 meshes with the rack 30. The end of the first rotation column 28 away from the second limit slide 17 is fixedly connected to one end of the second spline shaft 49.

[0061] A second electromagnetic brake 47 is installed on the fifth spline sleeve 46 , and a first electromagnetic brake 44 is provided on the second spline sleeve 34 , so as to keep the fifth spline sleeve 46 and the second spline sleeve 34 in a stationary state when needed.

[0062] In order to keep the chain gear on the driving shaft of the motorcycle engine 1 in a good state, so as to be well chained with the chain gear on the rear wheel of the motorcycle. First, the third gear 22 is meshed with the second gear 15 separately, and the servo motor 19 is started to make the first limit slide plate 16 move horizontally. At this time, the rack 30 is meshed with the fifth gear 29 to drive the first rotating column 28 and the second spline shaft 49 to rotate. The first electric telescopic rod 41 is started to make the fourth spline shaft sleeve 43 move to the right, and the spline strips distributed on the outer wall of the fourth spline shaft sleeve 43 are limited to slide in the second spline shaft sleeve 34, driving the second bottom plate 7 and the motorcycle engine 1 to deflect forward and backward. The first electric telescopic rod 41 is started again to make the spline strips distributed on the outer wall of the fourth spline shaft sleeve 43 limited to slide in the fifth spline shaft sleeve 46, so that the second bottom plate 7 and the motorcycle engine 1 deflect left and right.

[0063] The other structures of the second embodiment are the same as those of the first embodiment.

[0064] Embodiment 3: Based on Embodiment 2, a technical means is added to enable the motorcycle engine 1 and the second bottom plate 7 to maintain a stable state after adjusting the left and right front and rear deflection angles and the left and right horizontal positions.

[0065] This embodiment mainly includes a first side plate 4 , a first bottom plate 3 , and a first threaded rod 5 .

[0066] Key References Figure 1 and Figure 2, the two first side panels 4 are fixedly mounted on the outer wall of the box cover 2, and the bottoms of the two first side panels 4 are connected to the first bottom panel 3, which is placed at the bottom of the box cover 2. The first bottom panel 3 is provided with a first frame groove 9, a second frame groove 10, and a third frame groove 11. The top sides of the second bottom panel 7 are fixedly connected with first threaded rods 5, which penetrate the first frame groove 9 and the third frame groove 11 respectively. The first threaded rods 5 are threadedly connected with two nuts 6, which are placed at the top and bottom of the first bottom panel 3 respectively, for stably mounting the second bottom panel 7 on the first bottom panel 3; the second rotating column 40 penetrates the second frame groove 10.

[0067] The other structures of the third embodiment are the same as those of the second embodiment.

[0068] In the specific implementation, the box cover 2 is first fixedly mounted on the motorcycle frame, and the box cover 2 is kept in a stable fixed mounting state with the motorcycle frame. When a new motorcycle engine 1 model is subsequently replaced, the box cover 2 will not be removed.

[0069] When replacing a new motorcycle engine 1, first the new motorcycle engine 1 is mounted on the engine mounting plate 8. Then the engine mounting plate 8 is fixedly mounted on the second base plate 7 by screws.

[0070] Due to manual installation, possible deformation or slightly different process dimensions of the motorcycle, and size differences of different motorcycle engines 1, when different motorcycle engines 1 are installed on the second base plate 7, the display angle of the chain gear of the driving shaft of the motorcycle engine 1 is not very good.

[0071] At this time, the second electric telescopic rod 33 is started so that the third gear 22 is meshed with the second gear 15, and then the first electric telescopic rod 41 is started so that the spline strips distributed on the outer wall of the fourth spline sleeve 43 are limitedly slidably connected in the second spline sleeve 34. At this time, the servo motor 19 is started again so that the first limit slide plate 16 moves left and right, and the second limit slide plate 17 remains stationary. At this time, the rack 30 moves up and down to drive the first rotating column 28 to rotate. The first rotating column 28 drives the second spline shaft 49 to rotate. The rotating second spline shaft 49 drives the fourth spline sleeve 43 and the second spline sleeve 34 to rotate. The second rotating column 40, the second bottom plate 7, and the motorcycle engine 1 are deflected to a preset angle forward and backward. After adjusting the angle, the second spline sleeve 34 is fixed by the first electromagnetic brake 44, and the fifth spline sleeve 46 is fixed by the second electromagnetic brake 47. The first electromagnetic brake 44 is installed on the second side plate 35, and the second electromagnetic brake 47 is installed on the third bearing seat 48.

[0072] Then stop the servo motor 19, and start the first electric telescopic rod 41 so that the spline strips distributed on the circumference of the outer wall of the fourth spline sleeve 43 are limitedly slidably connected in the fifth spline sleeve 46. At this time, start the servo motor 19 so that the second spline shaft 49, the first bevel gear 45, the second bevel gear 50, the second rotating column 40, the second bottom plate 7, and the motorcycle engine 1 are deflected to the preset angles, so that the motorcycle engine 1 is displayed at a good angle, which makes it easier for the chain gear on the engine main shaft to be connected with the motorcycle rear wheel chain gear through the chain sleeve.

[0073] When installing the chain between the engine main shaft chain gear and the chain gear of the motorcycle rear wheel, for better installation, the second electric telescopic rod 33 can be started to make the third gear 22 mesh with the first gear 13 and the fourth gear 24.

[0074] At this time, the second threaded rod 12 and the third threaded rod 14 with the same pitch and shape keep rotating synchronously, so that the first limit slide plate 16 and the second limit slide plate 17 keep moving horizontally synchronously. Thus, the motorcycle engine 1 moves horizontally, which makes it easier to install the chain of the driving shaft of the motorcycle engine 1. And the tightness of the subsequent chain can be adjusted.

[0075] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A motorcycle fixing structure capable of changing engine models, characterized in that: include: A motorcycle internal fixing mechanism, used for being installed on a motorcycle frame, comprising a second bottom plate (7) and a driving mechanism, wherein the driving mechanism enables the second bottom plate (7) to deflect leftward or rightward, or deflect up and down, or move leftward and rightward horizontally; It also includes an engine mounting plate (8), the motorcycle engine (1) is fixedly mounted on the engine mounting plate (8), and the engine mounting plate (8) is fixedly mounted on the second bottom plate (7), so that the driving mechanism drives the driving shaft on the motorcycle engine (1) to deflect left and right or up and down, or to adjust the tightness of the chain of the chain gear on the engine driving shaft mounted on the motorcycle frame.

2. A motorcycle fixing structure capable of changing engine models according to claim 1, characterized in that: The driving mechanism comprises a left-right deflection mechanism, an up-down deflection mechanism, and a left-right horizontal movement mechanism.

3. A motorcycle fixing structure capable of changing engine models according to claim 2, characterized in that: The left-right horizontal movement mechanism enables the driving shaft on the motorcycle engine (1) and the chain gear on the driving shaft to move horizontally left-right, and is used to adjust the tightness of the chain gear on the driving shaft. The left-right horizontal movement mechanism comprises a box cover (2), a third threaded rod (14) is rotatably connected between the inner walls on both sides of the box cover (2), a second limiting slide plate (17) is threadedly connected to the outer wall of the third threaded rod (14), the second limiting slide plate (17) is slidably connected to the inner wall of the box cover (2) left-right, a second rotating column (40) is arranged on the second limiting slide plate (17), and the second rotating column (40) is fixedly connected to the second bottom plate (7); A first fixing plate (18) is fixedly connected inside the box cover (2); a first spline shaft (23) is connected between the first fixing plate (18) and the box cover (2) in a limited rotational manner; an outer wall of the first spline shaft (23) is connected to a first spline shaft sleeve (21) in a limited sliding manner to the left and right; an outer wall of the first spline shaft sleeve (21) is connected to a third limiting slide plate (20) in a limited rotational manner; the third limiting slide plate (20) is connected to the box cover (2) in a limited sliding manner; a second electric telescopic rod (33) is fixedly mounted on the box cover (2); a telescopic end of the second electric telescopic rod (33) is fixedly connected to the third limiting slide plate (20); A servo motor (19) is fixedly mounted on the first fixed plate (18), and a power output end of the servo motor (19) is connected to the first spline shaft (23); A third gear (22) is fixedly connected to the outer wall of the first spline sleeve (21), a fourth gear (24) is fixedly connected to the outer wall of the third threaded rod (14), and the third gear (22) can mesh with the fourth gear (24).

4. A motorcycle fixing structure capable of changing engine models according to claim 3, characterized in that: The front-rear deflection mechanism comprises two second side plates (35), an auxiliary connecting plate (36) is fixedly connected between the tops of the two second side plates (35), a third spline shaft sleeve (37) and a second spline shaft sleeve (34) are respectively connected to the two second side plates (35) in a limited rotational manner, the outer walls of the third spline shaft sleeve (37) and the second spline shaft sleeve (34) are both fixedly connected to a swing rod (38), the bottoms of the two swing rods (38) are commonly fixedly connected to a third bottom plate (39), the third bottom plate (39) is connected to the second rotating column (40) in a limited rotational manner, and the bottom of the second rotating column (40) is fixedly mounted with the second bottom plate (7); A first electric telescopic rod (41) is fixedly mounted on the auxiliary connecting plate (36); a telescopic end of the first electric telescopic rod (41) is connected to a second bearing seat (42); the second bearing seat (42) is limitedly slidably connected to the auxiliary connecting plate (36); a fourth spline shaft sleeve (43) is limitedly rotatably connected inside the second bearing seat (42); a second spline shaft (49) is limitedly slidably connected inside the fourth spline shaft sleeve (43); the first electric telescopic rod (41) is extended to drive the fourth spline shaft sleeve (43) to move to one side and make the spline strips distributed on the circumference of the outer wall of the fourth spline shaft sleeve limitedly slidably connected inside the second spline shaft sleeve (34), so as to drive the second rotating column (40) and the second bottom plate (7) to deflect forward and backward; The second limit slide (17) is connected to the first rotating column (28) in a limit rotation manner, and the second limit slide (17) is provided with a rotating mechanism for rotating the first rotating column (28). The second limit slide (17) is fixedly connected to the first mounting plate (26), and the first mounting plate (26) is fixedly connected to the first bearing seat (27). The first rotating column (28) is connected to the first bearing seat (27) in a limit rotation manner, and two second fixed plates (32) are fixedly connected to the first bearing seat (27), and the two second fixed plates (32) are fixedly connected to one of the second side plates (35), and one end of the second spline shaft (49) is fixedly connected to one end of the first rotating column (28).

5. A motorcycle fixing structure capable of changing engine models according to claim 4, characterized in that: The rotating mechanism comprises a second threaded rod (12), the second threaded rod (12) is connected to the inner wall of the box cover (2) in a limited rotational manner, the outer wall of the second threaded rod (12) is threadedly connected to a first limiting slide plate (16), the first limiting slide plate (16) is connected to the box cover (2) in a limited sliding manner, the outer wall of the second threaded rod (12) is fixedly connected to a second gear (15) and a first gear (13), and the third gear (22) can mesh with the first gear (13) and the fourth gear (24) at the same time. The third gear (22) can be meshed with the second gear (15) alone; the outer wall of the second limiting slide (17) is slidably connected to a fourth limiting slide (31) up and down; a hinge rod (25) is hinged between the fourth limiting slide (31) and the first limiting slide (16); a rack (30) is fixedly connected to the fourth limiting slide (31); the outer wall of the first rotating column (28) is fixedly connected to a fifth gear (29); the fifth gear (29) and the rack (30) are meshed with each other.

6. A motorcycle fixing structure capable of changing engine models according to claim 5, characterized in that: The front-rear deflection mechanism comprises a third bearing seat (48), the third bearing seat (48) is fixedly connected to the auxiliary connecting plate (36), a fifth spline shaft sleeve (46) is limitedly rotatably connected inside the third bearing seat (48), the outer wall of the fifth spline shaft sleeve (46) is fixedly connected to the first bevel gear (45), the first electric telescopic rod (41) contracts to drive the fourth spline shaft sleeve (43) to move to the other side and causes the spline strips distributed on the circumference of the outer wall of the fourth spline shaft sleeve (43) to slide within the fifth spline shaft sleeve (46), so as to drive the fifth spline shaft sleeve (46) and the first bevel gear (45) to rotate; The top of the second rotating column (40) is fixedly connected with a second bevel gear (50), and the first bevel gear (45) and the second bevel gear (50) are meshed with each other to drive the second bottom plate (7) to deflect left and right.

7. A motorcycle fixing structure capable of changing engine models according to claim 6, characterized in that: It also includes a stabilization mechanism for maintaining the adjusted second bottom plate (7) in a stable state, the stabilization mechanism including two first side plates (4), the two first side plates (4) being respectively fixedly mounted on the outer wall of the box cover (2), and the bottoms of the two first side plates (4) being commonly connected to a first bottom plate (3), the first bottom plate (3) being mounted on the bottom of the box cover (2), and the first bottom plate (3) being provided with a first frame groove (9), a second frame groove (10), and a third frame groove (11); First threaded rods (5) are fixedly connected to both sides of the top of the second bottom plate (7), and the two first threaded rods (5) respectively penetrate the first frame groove (9) and the third frame groove (11), and two nuts (6) are threadedly connected to the first threaded rods (5), and the two nuts (6) are respectively placed at the top and bottom of the first bottom plate (3) to stably mount the second bottom plate (7) on the first bottom plate (3); The second rotating column (40) passes through the second frame groove (10).

8. A motorcycle fixing structure capable of changing engine models according to claim 7, characterized in that: After the second rotating column (40) is adjusted to a preset position, the bottom of the box cover (2) is shielded by a waterproof film.

9. A motorcycle fixing structure capable of changing engine models according to claim 8, characterized in that: The fifth spline shaft sleeve (46) is provided with a second electromagnetic brake (47), and the second spline shaft sleeve (34) is provided with a first electromagnetic brake (44).

10. A motorcycle fixing structure capable of changing engine models according to claim 9, characterized in that: It also includes a controller, which is electrically connected to the second electromagnetic brake (47), the first electromagnetic brake (44), the first electric telescopic rod (41), and the second electric telescopic rod (33).

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