Double stepless speed change gear transmission device

Abstract

The utility model relates to a gear transmission device, in particular to a double stepless speed change gear transmission device. The utility model aims to solve the problem that the use of an underwater vehicle is limited due to the fact that the underwater environment is complex and a single stepless speed change transmission mode is difficult to adapt to different underwater environments. The stepless speed change transmission comprises a first input shaft, a second input shaft, a first output gear, a second output gear, a first clutch, a second clutch, a first transmission gear, a second transmission gear, a first stepless speed change transmission mechanism and a second stepless speed change transmission mechanism. The utility model belongs to the technical field of gear transmission.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gear transmission device belongs to gear transmission technical field. BACKGROUND

[0002] The underwater vehicle commonly adopts the mode of stepless speed change gear transmission to transmit power, and the mode of transmitting power makes the underwater vehicle be able to change the navigation speed more intelligently, but due to the complex underwater environment, the single stepless speed change transmission mode is difficult to adapt to different underwater environments, leading to the use of underwater vehicle being limited. SUMMARY

[0003] The utility model discloses to solve the problem that due to the complex underwater environment, the single stepless speed change transmission mode is difficult to adapt to different underwater environments, leading to the use of underwater vehicle being limited, and further puts forward a kind of gear transmission device of double stepless speed change.

[0004] The utility model discloses to solve the technical scheme that above-mentioned problem adopts: the utility model discloses first input shaft, second input shaft, first output gear, second output gear, first clutch, second clutch, first transmission gear, second transmission gear, first stepless speed change transmission mechanism and second stepless speed change transmission mechanism;

[0005] First input shaft and second input shaft are arranged side by side parallel, and first transmission gear is coaxially fixedly sleeved on first input shaft, second transmission gear is coaxially fixedly sleeved on second input shaft, and first transmission gear is engaged with second transmission gear.

[0006] First input shaft is connected with first stepless speed change transmission mechanism by first clutch, first stepless speed change transmission mechanism is connected with first output gear, second input shaft is connected with second stepless speed change transmission mechanism by second clutch, second stepless speed change transmission mechanism is connected with second output gear, and first output gear is engaged with second output gear.

[0007] Further, first stepless speed change transmission mechanism includes first driving shaft, first driven shaft, first belt, fixed conical gear, sliding conical gear, push plate, elastic member and first fixed pulley;

[0008] First driving shaft and first driven shaft are arranged side by side parallel, and first driving shaft is connected with first input shaft by first clutch.

[0009] First fixed pulley is coaxially fixedly sleeved on first driving shaft, fixed conical gear is fixedly sleeved on first driven shaft, sliding conical gear is slidably installed on first driven shaft by key, the taper surface of fixed conical gear is oppositely arranged with the taper surface of sliding conical gear, one end of first belt is sleeved on first fixed pulley, and the other end of first belt is sleeved between fixed conical gear and sliding conical gear.

[0010] The push plate is slidably mounted on the first driven shaft, and the elastic element is fitted on the first driven shaft, with the elastic element located between the push plate and the sliding bevel gear.

[0011] Furthermore, the edge of the first fixed pulley is provided with a trapezoidal groove that mates with the first belt.

[0012] Furthermore, the elastic element is a spring.

[0013] Furthermore, the second continuously variable transmission mechanism includes a second drive shaft, a second driven shaft, a second belt, a second fixed pulley, a bushing, eight electric push rods, and eight pinions;

[0014] The second drive shaft and the second driven shaft are arranged side by side in parallel, and the second drive shaft is connected to the second input shaft through the second clutch;

[0015] The second fixed pulley is fixedly mounted on the second input shaft, and the bushing is fixedly mounted on the second driven shaft. Eight electric push rods are evenly distributed and fixed on the outer wall of the bushing along the circumferential direction. Each electric push rod has a small gear installed at its telescopic end. The eight small gears and the eight electric push rods form a variable diameter gear.

[0016] One end of the second belt is fitted onto the second fixed pulley, and the other end of the second belt is fitted onto the variable diameter gear.

[0017] The beneficial effects of this utility model are: 1. This utility model sets up two continuously variable transmission mechanisms in parallel, and realizes the switching of the two continuously variable transmission mechanisms by switching the first clutch and the second clutch, so as to adapt to different underwater environments;

[0018] 2. This utility model has a simple structure and is easy to operate. It can switch between two transmission systems by simply operating the alternating switching of two clutches. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the first continuously variable transmission mechanism.

[0021] Figure 3 This is a schematic diagram of the structure of the second continuously variable transmission mechanism;

[0022] Figures 1 to 3In the diagram, 1-first input shaft, 2-second input shaft, 3-first output gear, 4-second output gear, 5-first clutch, 6-second clutch, 7-first transmission gear, 8-second transmission gear, 9-first drive shaft, 10-first driven shaft, 11-first belt, 12-fixed bevel gear, 13-sliding bevel gear, 14-push plate, 15-elastic element, 16-first fixed pulley, 17-second drive shaft, 18-second driven shaft, 19-second belt, 20-second fixed pulley, 21-shaft sleeve, 22-electric push rod, 23-small gear. Detailed Implementation

[0023] Specific implementation method one: as follows Figure 1 As shown, a dual continuously variable transmission gear transmission device includes a first input shaft 1, a second input shaft 2, a first output gear 3, a second output gear 4, a first clutch 5, a second clutch 6, a first transmission gear 7, a second transmission gear 8, a first continuously variable transmission mechanism, and a second continuously variable transmission mechanism.

[0024] The first input shaft 1 and the second input shaft 2 are arranged side by side in parallel. The first transmission gear 7 is coaxially fixedly mounted on the first input shaft 1, and the second transmission gear 8 is coaxially fixedly mounted on the second input shaft 2. The first transmission gear 7 and the second transmission gear 8 mesh.

[0025] The first input shaft 1 is connected to the first continuously variable transmission mechanism via the first clutch 5. The first continuously variable transmission mechanism is connected to the first output gear 3. The second input shaft 2 is connected to the second continuously variable transmission mechanism via the second clutch 6. The second continuously variable transmission mechanism is connected to the second output gear 4. The first output gear 3 and the second output gear 4 mesh.

[0026] The first continuously variable transmission mechanism is a transmission mechanism with a gear ratio of 2:3, mainly used in underwater environments with stable water flow; the second continuously variable transmission mechanism is a transmission mechanism with a gear ratio of 1:5, mainly used in underwater environments with rapid water flow or a lot of turbulent currents.

[0027] The first input shaft 1 is connected to the motor shaft of the drive motor, and the first output gear 3 is connected to the propeller.

[0028] Specific implementation method two: such as Figure 1 and Figure 2 As shown, based on the first specific embodiment, the first continuously variable transmission mechanism includes a first drive shaft 9, a first driven shaft 10, a first belt 11, a fixed bevel gear 12, a sliding bevel gear 13, a push plate 14, an elastic element 15, and a first fixed pulley 16.

[0029] The first drive shaft 9 and the first driven shaft 10 are arranged side by side in parallel. The first drive shaft 9 is connected to the first input shaft 1 through the first clutch 5.

[0030] The first fixed pulley 16 is coaxially fixedly mounted on the first drive shaft 9, the fixed bevel gear 12 is fixedly mounted on the first driven shaft 10, and the sliding bevel gear 13 is slidably mounted on the first driven shaft 10 via a key. The bevel surfaces of the fixed bevel gear 12 and the sliding bevel gear 13 are arranged opposite to each other. One end of the first belt 11 is mounted on the first fixed pulley 16, and the other end of the first belt 11 is mounted between the fixed bevel gear 12 and the sliding bevel gear 13.

[0031] The push plate 14 is slidably mounted on the first passive shaft 10, and the elastic element 15 is fitted on the first passive shaft 10, with the elastic element 15 located between the push plate 14 and the sliding bevel gear 12.

[0032] The edge of the first fixed pulley 16 is provided with a trapezoidal groove that cooperates with the first belt 11.

[0033] Among them, the elastic element 15 is a spring.

[0034] Specific implementation method three: such as Figure 1 and Figure 3 As shown, the second continuously variable transmission mechanism includes a second drive shaft 17, a second driven shaft 18, a second belt 19, a second fixed pulley 20, a bushing 21, eight electric push rods 22 and eight pinions 23;

[0035] The second drive shaft 17 and the second driven shaft 18 are arranged side by side in parallel. The second drive shaft 17 is connected to the second input shaft 2 through the second clutch 6.

[0036] The second fixed pulley 20 is fixedly mounted on the second input shaft 2, the bushing 21 is fixedly mounted on the second passive shaft 18, and the eight electric push rods 22 are evenly distributed and fixed on the outer wall of the bushing 21 along the circumferential direction. Each electric push rod 22 has a small gear 23 installed at its telescopic end. The eight small gears 23 and the eight electric push rods 22 form a variable diameter gear.

[0037] One end of the second belt 19 is fitted onto the second fixed pulley 20, and the other end of the second belt 19 is fitted onto the variable diameter gear.

[0038] Working principle

[0039] When in use, in a relatively calm underwater environment, the first clutch 5 engages and the second clutch 6 disengages. The first input shaft 1 transmits power to the propeller through the first continuously variable transmission mechanism. At this time, the speed change of the first continuously variable transmission mechanism is relatively small, which is suitable for operation in a calm underwater environment.

[0040] When operating in underwater environments with rapid currents or numerous undercurrents, the first clutch 5 disengages and the second clutch 6 engages. The first input shaft 1 transmits power to the second input shaft 2 through the first transmission gear 7 and the second transmission gear 8. The second input shaft 2 then transmits power to the first output gear 3 through the second continuously variable transmission mechanism and the second output gear 4. The first output gear 3 drives the propeller to rotate. At this time, the second continuously variable transmission mechanism has a relatively large speed range, which can adapt to various types of turbulent and undercurrent conditions.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present utility model's technical solution, based on the technical essence of the present utility model and within the spirit and principles of the present utility model, shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A dual continuously variable transmission gear transmission device, characterized in that, It includes a first input shaft (1), a second input shaft (2), a first output gear (3), a second output gear (4), a first clutch (5), a second clutch (6), a first transmission gear (7), a second transmission gear (8), a first continuously variable transmission mechanism, and a second continuously variable transmission mechanism. The first input shaft (1) and the second input shaft (2) are arranged side by side in parallel. The first transmission gear (7) is coaxially fixedly mounted on the first input shaft (1), and the second transmission gear (8) is coaxially fixedly mounted on the second input shaft (2). The first transmission gear (7) and the second transmission gear (8) mesh. The first input shaft (1) is connected to the first continuously variable transmission mechanism via the first clutch (5), the first continuously variable transmission mechanism is connected to the first output gear (3), the second input shaft (2) is connected to the second continuously variable transmission mechanism via the second clutch (6), the second continuously variable transmission mechanism is connected to the second output gear (4), and the first output gear (3) meshes with the second output gear (4).

2. The dual continuously variable transmission gear transmission device according to claim 1, characterized in that, The first continuously variable transmission mechanism includes a first drive shaft (9), a first driven shaft (10), a first belt (11), a fixed bevel gear (12), a sliding bevel gear (13), a push plate (14), an elastic element (15), and a first fixed pulley (16). The first drive shaft (9) and the first driven shaft (10) are arranged side by side in parallel. The first drive shaft (9) is connected to the first input shaft (1) through the first clutch (5). The first fixed pulley (16) is coaxially fixedly mounted on the first drive shaft (9), the fixed bevel gear (12) is fixedly mounted on the first driven shaft (10), and the sliding bevel gear (13) is slidably mounted on the first driven shaft (10) via a key. The cone surface of the fixed bevel gear (12) and the cone surface of the sliding bevel gear (13) are set opposite to each other. One end of the first belt (11) is mounted on the first fixed pulley (16), and the other end of the first belt (11) is mounted between the fixed bevel gear (12) and the sliding bevel gear (13). The push plate (14) is slidably mounted on the first passive shaft (10), and the elastic element (15) is fitted on the first passive shaft (10), with the elastic element (15) located between the push plate (14) and the sliding bevel gear (13).

3. The dual continuously variable transmission gear transmission device according to claim 2, characterized in that, The edge of the first fixed pulley (16) is provided with a trapezoidal groove that matches the first belt (11).

4. The dual continuously variable transmission gear transmission device according to claim 2, characterized in that, The elastic element (15) is a spring.

5. The dual continuously variable transmission gear transmission device according to claim 1, characterized in that, The second continuously variable transmission mechanism includes a second drive shaft (17), a second driven shaft (18), a second belt (19), a second fixed pulley (20), a bushing (21), eight electric push rods (22) and eight pinions (23). The second drive shaft (17) and the second driven shaft (18) are arranged side by side in parallel. The second drive shaft (17) is connected to the second input shaft (2) through the second clutch (6). The second fixed pulley (20) is fixedly mounted on the second input shaft (2), and the bushing (21) is fixedly mounted on the second passive shaft (18). Eight electric push rods (22) are evenly distributed and fixed on the outer wall of the bushing (21) along the circumferential direction. Each electric push rod (22) has a small gear (23) installed at its telescopic end. The eight small gears (23) and the eight electric push rods (22) form a variable diameter gear. One end of the second belt (19) is fitted onto the second fixed pulley (20), and the other end of the second belt (19) is fitted onto the variable diameter gear.

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