CN211820589U - Amphibious vehicle transmission transfer case - Google Patents

Abstract

The utility model discloses an amphibious vehicle transmission transfer case, which relates to the field of transmission devices, and mainly comprises a case body, a main input shaft, left and right transmission shafts, left and right oil pump shafts and a water pump output shaft; The input shaft and the left and right transmission shafts are respectively driven by gears, the left and right transmission shafts are then geared with the left and right oil pump shafts, and the output shaft of the water pump is geared with the right oil pump shaft. control. The beneficial effects of the utility model are as follows: the utility model only uses one diesel engine (prime mover) to input power, and under the transmission of each transmission shaft and each gear, one input drives four outputs, that is, two high-power oil pump outputs, one The output of the gearbox for land travel and the output of a water jet propulsion pump; under the control of the control valve of the transfer case, it can complete the two working modes of land travel and water forward; it can be popularized and applied to the transmission field of amphibious vehicles .

Description

Amphibious vehicle transmission transfer case

technical field

The utility model relates to the field of transmission devices, in particular to an amphibious vehicle transmission transfer case.

Background technique

An amphibious vehicle is a special vehicle that can not only drive on land like a normal car, but also travel in water. Most of the existing traditional gearboxes are simple clutch gearboxes that use clutches for clutching, or clutch reduction gearboxes that combine clutches and gears. There is no transmission gearbox that integrates a gearbox for traveling on land and a waterjet propulsion pump for traveling on water.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and to provide an amphibious vehicle transmission transfer case, which has the advantages of one machine with multiple outputs and capable of working on both water and land.

The purpose of this utility model is accomplished through the following technical solutions: this amphibious vehicle transmission transfer case mainly includes a box body, a main input shaft and an input coupling assembly; an input coupling driven by the diesel engine flywheel connection The assembly is fixed on the main input shaft, the main input shaft is fixed with the main clutch housing, and the main clutch housing is equipped with a piston, a main return spring, the main inner friction plate and the main outer friction plate, the main inner friction plate and the main outer friction plate Form the main clutch;

The gear on the main clutch shell meshes with the left transmission gear fixed on the left transmission shaft, and the left transmission gear meshes with the left oil pump gear fixed on the left oil pump shaft at the same time;

The gear on the main clutch casing is also meshed with the right transmission gear fixed on the right transmission shaft, the right transmission gear meshes with the gear on the right clutch casing at the same time, and the right clutch casing is fixed on the right oil pump shaft. The right clutch housing is equipped with the right piston, the right return spring, the right outer friction plate and the right inner friction plate, and the right outer friction plate and the right inner friction plate constitute the right clutch;

The right oil pump shaft is also provided with a water pump driving gear, the water pump driving gear is engaged with the water pump output gear fixed on the water pump output shaft, and one end of the water pump output shaft is provided with a water pump output coupling for connecting a water jet propulsion pump. ;

The left and right oil pump shafts respectively connect an oil pump to output power through the left and right oil pump couplings.

Further, one end of the main input shaft is supported on the box by the bearing E, the other end is supported by the sliding bearing in the end hole of the input shaft of the gearbox, and the input shaft of the gearbox is supported in the box by the output rear bearing and the output middle bearing. On the body, the left drive shaft is supported on the box by bearings A and D, the left oil pump shaft is supported on the box by bearings B and C, the right drive shaft is supported on the box by bearings F and K, and the right oil pump is supported on the box by bearings B and C. The shaft is supported on the box by bearings G and J, and the pump output shaft is supported on the box by bearings H and I;

Through the movement of the piston, the main inner friction plate and the main outer friction plate are compressed, that is, the main clutch is combined, and the power is transmitted from the main input shaft to the transmission input shaft, which makes the transmission input shaft rotate, and drives the transmission input coupling to rotate together , the land travel gearbox connected to the rear end of the gearbox input coupling starts to work to realize the land travel condition;

Through the movement of the right piston, the right outer friction plate and the right inner friction plate are compressed, that is, the right clutch is combined, so that the driving gear of the water pump rotates, and the output gear of the water pump is driven to rotate together. The output is sent to an external water jet propulsion pump to realize the working condition of water traveling.

The beneficial effects of the utility model are as follows: the utility model only uses one diesel engine (prime mover) to input power, and under the transmission of each transmission shaft and each gear, one input drives four outputs, that is, two high-power oil pump outputs, one The output of the gearbox for land travel and the output of a water jet propulsion pump; under the control of the control valve of the transfer case, it can complete the two working modes of land travel and water forward; it can be popularized and applied to the transmission field of amphibious vehicles .

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 .

Description of reference numerals: 1, sliding bearing; 2, bearing A; 3, left transmission shaft; 4, left oil pump coupling; 5, bearing B; 6, box body; 7, left oil pump shaft; 8, left oil pump gear ;9, bearing C; 10, self-contained oil pump; 11, left transmission gear; 12, bearing D; 13, output rear bearing; 14, output middle bearing; 15, main return spring; 16, main input shaft; 17, bearing E; 18, input coupling assembly; 19, bearing F; 20, piston; 21, main inner friction plate; 22, main outer friction plate; 23, bearing G; 24, bearing H; 25, right clutch housing; 26 , right piston; 27, water pump output shaft; 28, right outer friction plate; 29, right inner friction plate; 30, water pump output gear; 31, bearing I; 32, water pump output coupling; 33, water pump driving gear; 34 , bearing J; 35, right oil pump shaft; 36, right oil pump coupling; 37, right return spring; 38, right drive shaft; 39, bearing K; 40, main clutch housing; 41, land travel gearbox; 42 , Gearbox input shaft; 43, Gearbox input coupling; 44, Right transmission gear.

Detailed ways

The present utility model will be described in detail below in conjunction with the accompanying drawings:

Example: As shown in Figures 1 and 2, this amphibious vehicle transmission transfer case mainly includes a box body 6, a main input shaft 16 and an input coupling assembly 18; the input coupling driven by the diesel engine flywheel connection The section assembly 18 is fixed on the main input shaft 16, the main input shaft 16 is fixed with the main clutch housing 40, and the main clutch housing 40 is equipped with the piston 20, the main return spring 15, the main inner friction plate 21 and the main outer friction plate 22 , the main inner friction plate 21 and the main outer friction plate 22 form the main clutch (one end of the main inner friction plate 21 meshes with the spline teeth of the gearbox input shaft 42); the outer circle of the main clutch shell 40 is designed with gears , and meshes with the left transmission gear 11 fixed on the left transmission shaft 3, and the left transmission gear 11 meshes with the left oil pump gear 8 fixed on the left oil pump shaft 7 at the same time; The gear also meshes with the right transmission gear 44 fixed on the right transmission shaft 38, the right transmission gear 44 meshes with the gear on the right clutch housing 25 at the same time, and the right clutch housing 25 is fixedly installed on the right oil pump shaft 35. The right clutch housing 25 is equipped with the right piston 26, the right return spring 37, the right outer friction plate 28 and the right inner friction plate 29, and the right outer friction plate 28 and the right inner friction plate 29 form the right clutch (the right inner friction plate 29 and the water pump are active). The clutch seat on the end face of the gear 33 meshes with each other); the right oil pump shaft 35 is also provided with a water pump driving gear 33, and the water pump driving gear 33 meshes with the water pump output gear 30 fixed on the water pump output shaft 27, and the water pump output shaft One end of 27 is equipped with a water pump output coupling 32 for connecting a water jet propulsion pump; the left and right oil pump shafts 7 and 35 are respectively connected to an oil pump to output power through the left and right oil pump couplings 4 and 36 respectively.

Further, one end of the main input shaft 16 is supported on the casing 6 by the bearing E17, and the other end is supported by the sliding bearing 1 in the end hole of the gearbox input shaft 42. The gearbox input shaft 42 is supported by the output rear bearing 13 and In the output, the bearing 14 is supported on the box body 6, the left transmission shaft 3 is supported on the box body 6 through the bearing A2 and the bearing D12, the left oil pump shaft 7 is supported on the box body 6 by the bearing B5 and the bearing C9, and the right transmission shaft 44 passes through The bearing F19 and bearing K39 are supported on the box body 6, the right oil pump shaft 35 is supported on the box body 6 by the bearing G23 and the bearing J34, the water pump output shaft 27 is supported on the box body 6 by the bearing H24 and the bearing I31; , press the main inner friction plate 21 and the main outer friction plate 22, that is, the main clutch is combined, so that the gearbox input shaft 42 rotates, and drives the gearbox input coupling 43 to rotate together, and is connected to the gearbox input coupling 43. The land travel gearbox 41 at the end starts to work to realize the land travel condition; through the movement of the right piston 26, the right outer friction plate 28 and the right inner friction plate 29 are pressed, that is, the right clutch is combined, so that the water pump driving gear 33 rotates, And drive the water pump output gear 30 to rotate together, and output the power to the external water jet propulsion pump through the water pump output shaft 27 and the water pump output coupling 32 at the shaft end, so as to realize the water traveling working condition.

The working process of the utility model:

When the diesel engine flywheel drives the main input shaft 16 to rotate, the main clutch casing 40 rotates, the gear on the main clutch casing 40 drives the left transmission gear 11 to rotate, and the rotation of the left transmission gear 11 drives the left oil pump gear 8 to rotate. The left oil pump shaft 7 on the left oil pump gear 8 rotates, and the left oil pump coupling 4 rotates at the same time, which can drive the external oil pump externally connected to the left oil pump coupling 4 to work.

In addition, the gear on the main clutch housing 40 drives the right transmission gear 44 to rotate at the same time, and the rotation of the right transmission gear 44 drives the right clutch housing 25 to rotate. Since the right clutch housing 25 is fixed on the right oil pump shaft 35, the right clutch housing 25 When rotating, it drives the right oil pump shaft 35 to rotate, and drives the external oil pump externally connected to the right oil pump coupling 36 to work.

When the amphibious vehicle is driving on land, the transfer case issues a land travel command, and the oil pump 10 installed on the left side of the box body 6 delivers the working oil to the piston 20, and the movement of the piston 20 presses the main internal The friction plate 21 and the main outer friction plate 22, that is, the main clutch, are combined, and the power is transmitted from the main input shaft 16 to the gearbox input shaft 42, which makes the gearbox input shaft 42 rotate, and drives the gearbox input coupling 43 to rotate together, connecting The land traveling gearbox 41 at the rear end of the gearbox input coupling 43 starts to work to realize the land traveling working condition.

When the amphibious vehicle is driving on the water surface, the transfer case issues a water travel command, the oil pump 10 with its own transports the working oil to the right piston 26, and the movement of the right piston 26 presses the right outer friction plate 28 and the right inner friction plate 29, that is, the right clutch is combined to make the water pump driving gear 33 rotate, and drive the water pump output gear 30 to rotate together, through the water pump output shaft 27 and the water pump output coupling 32 at the shaft end, the power is output to the external water jet propulsion pump to realize the water pump. Work on the go.

It can be understood that, for those skilled in the art, equivalent replacements or changes to the technical solutions and concepts of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims (2)

1. An amphibian car transmission transfer case which characterized in that: mainly comprises a box body (6), a main input shaft (16) and an input coupling component (18); an input coupling assembly (18) driven by a diesel engine flywheel is fixed on a main input shaft (16), a main clutch shell (40) is fixedly arranged on the main input shaft (16), a piston (20), a main return spring (15), a main inner friction plate (21) and a main outer friction plate (22) are arranged in the main clutch shell (40), and the main inner friction plate (21) and the main outer friction plate (22) form a main clutch;

a gear on the main clutch shell (40) is meshed with a left transmission gear (11) fixedly arranged on a left transmission shaft (3), and the left transmission gear (11) is simultaneously meshed with a left oil pump gear (8) fixedly arranged on a left oil pump shaft (7);

the gear on the main clutch shell (40) is also meshed with a right transmission gear (44) fixedly arranged on a right transmission shaft (38), the right transmission gear (44) is simultaneously meshed with the gear on the right clutch shell (25), the right clutch shell (25) is fixedly arranged on a right oil pump shaft (35), a right piston (26), a right return spring (37), a right outer friction plate (28) and a right inner friction plate (29) are arranged in the right clutch shell (25), and the right outer friction plate (28) and the right inner friction plate (29) form a right clutch;

a water pump driving gear (33) is further sleeved on the right oil pump shaft (35), the water pump driving gear (33) is meshed with a water pump output gear (30) fixedly arranged on a water pump output shaft (27), and a water pump output coupling (32) is arranged at one end of the water pump output shaft (27) and used for being externally connected with a water spray propulsion pump;

the left oil pump shaft (7) and the right oil pump shaft (35) are respectively externally connected with an oil pump to output power through a left oil pump coupling and a right oil pump coupling (4, 36).

2. An amphibian as claimed in claim 1 wherein: one end of the main input shaft (16) is supported on the box body (6) through a bearing E (17), the other end of the main input shaft is supported in an end hole of a gearbox input shaft (42) through a sliding bearing (1), the gearbox input shaft (42) is supported on the box body (6) through an output rear bearing (13) and an output middle bearing (14), the left transmission shaft (3) is supported on the box body (6) through a bearing A (2) and a bearing D (12), the left oil pump shaft (7) is supported on the box body (6) through a bearing B (5) and a bearing C (9), the right transmission shaft (38) is supported on the box body (6) through a bearing F (19) and a bearing K (39), the right oil pump shaft (35) is supported on the box body (6) through a bearing G (23) and a bearing J (34), and the water pump output shaft (27) is supported on the box body (6) through a bearing H (24) and a bearing I (31);

the main inner friction plate (21) and the main outer friction plate (22) are pressed through the movement of the piston (20), namely, the main clutch is combined, power is transmitted to a gearbox input shaft (42) from a main input shaft (16), the gearbox input shaft (42) is rotated and drives a gearbox input coupling (43) to rotate together, a land walking gearbox (41) connected to the rear end of the gearbox input coupling (43) starts to work, and the land walking working condition is realized;

the right outer friction plate (28) and the right inner friction plate (29) are pressed tightly through the movement of the right piston (26), namely, the right clutch is combined, so that the water pump driving gear (33) rotates and drives the water pump output gear (30) to rotate together, power is output to an external water spray propulsion pump through the water pump output shaft (27) and a water pump output coupling (32) at the shaft end, and the water advancing working condition is realized.

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