阅读说明：本技术 一种具有较短动力传递路线的齿轮箱 (Gear box with shorter power transmission route ) 是由 陈王龙 于 2020-07-17 设计创作，主要内容包括：本发明公开了一种具有较短动力传递路线的齿轮箱,涉及传动装置领域,包括一与柴油机飞轮直接连接的弹性飞轮联轴节组件,固装在罩壳箱体上的输入联轴节与该弹性飞轮联轴节组件连接传动,该输入联轴节又与置于罩壳箱体内的输入轴连接；输入轴上固装有与倒车传动齿轮相啮合的输入传动齿轮,该输入传动齿轮与输入联轴节之间通过端面键连接,输入传动齿轮内设置有顺车活塞、顺车返回弹簧和顺车离合器,罩壳箱体上设置用于发出离合器结合指令的操纵阀。本发明大幅降低了齿轮箱的重量,减小体积,与国外如美国、德国等西欧国家相比,在同等功率相同的柴油机转速下,能达到相同的重量要求。可推广应用至新一代高速船艇上。(The invention discloses a gear box with a shorter power transmission route, which relates to the field of transmission devices and comprises an elastic flywheel coupling component directly connected with a diesel engine flywheel, wherein an input coupling fixedly arranged on a housing box body is connected with the elastic flywheel coupling component for transmission, and the input coupling is connected with an input shaft arranged in the housing box body; the input shaft is fixedly provided with an input transmission gear meshed with the reverse transmission gear, the input transmission gear is connected with an input coupling through an end key, the input transmission gear is internally provided with a forward piston, a forward return spring and a forward clutch, and the housing box body is provided with an operating valve for sending a clutch combination instruction. The invention greatly reduces the weight of the gear box, reduces the volume, and can meet the same weight requirement under the same diesel engine rotating speed with the same power compared with the western European countries such as America, Germany and the like. Can be popularized and applied to the new generation of high-speed ships and boats.)

1. A gear box with shorter power transmission route comprises an elastic flywheel coupling component (3) directly connected with a diesel engine flywheel, an input coupling (4) fixedly arranged on a housing box body (5) is connected with the elastic flywheel coupling component (3) for transmission, and the input coupling (4) is connected with an input shaft (13) arranged in the housing box body (5); the method is characterized in that: an input transmission gear (7) meshed with the reverse transmission gear (30) is fixedly arranged on the input shaft (13), the input transmission gear (7) is connected with the input coupling (4) through an end key, and a forward piston (8), a forward return spring (9) and a forward clutch are arranged in the input transmission gear (7);

the input shaft (13) is also provided with a forward driving gear (10) which rotates relatively, and one end of the forward driving gear (10) is provided with a clutch seat; an in-sequence outer friction plate (19) is arranged in the input transmission gear (7), an in-sequence inner friction plate (18) is arranged on a clutch seat of the in-sequence driving gear (10), and the in-sequence inner and outer friction plates (18 and 19) form the in-sequence clutch;

a reversing piston (31), a reversing return spring (27) and a reversing clutch are arranged in a reversing transmission gear (30) fixedly arranged on a transmission shaft (32); a reverse driving gear (33) which rotates relatively is also arranged on the transmission shaft (32), one end of the reverse driving gear (33) is provided with a clutch seat, a reverse inner friction plate (28) is arranged in the clutch seat, a reverse outer friction plate (29) is arranged in the reverse transmission gear (30), and the reverse clutch is composed of the reverse inner friction plate (28) and the reverse outer friction plate (29);

The forward driving gear (10) and the reverse driving gear (33) are respectively meshed with the driven gear (20), the driven gear (20) and the output coupling (15) are fixedly arranged on the output shaft (16), and the output coupling (15) outputs power by connecting a tail shaft of a ship body and a propeller;

and the housing box body (5) is provided with an operating valve (2) for sending a clutch combination command.

2. The gearbox having a shorter power transmission route according to claim 1, characterized in that: the input shaft (13) is supported on the housing box body (5) through a bearing A (5) and a bearing B (12), the output shaft (16) is supported on the housing box body (5) through a bearing C (14) and a bearing D (22), and the transmission shaft (32) is supported on the housing box body (5) through a bearing E (24) and a bearing F (34);

an oil pump (1) for ensuring the forward reversing of the gear box and the lubrication of the gear box is arranged at one shaft end of the transmission shaft (32), when the control valve (2) sends a reversing instruction, the oil pump (1) conveys the working oil of the gear box to a reversing piston (31) through a reversing working oil path (36), and the reversing piston (31) moves to press the reversing inner and outer friction plates (28 and 29), namely the reversing clutch is combined; when the control valve (2) sends a forward driving command, the oil pump (1) conveys the gear box working oil to the forward driving piston (8) through the forward driving working oil path (35), and the forward driving piston (8) moves to press the forward driving inner and outer friction plates (18 and 19) tightly, namely the forward driving clutch is combined.

3. The gearbox having a shorter power transmission route according to claim 1, characterized in that: both ends of the forward driving gear (10) are respectively provided with a grinding disc A (11) and a grinding disc B (17), and both the grinding discs are sleeved on the input shaft (13); and both ends of the reversing driving gear (33) are respectively provided with a grinding piece C (25) and a grinding piece D (26), and the grinding pieces C and D are sleeved on the transmission shaft (32).

Technical Field

The invention relates to the field of transmission devices, in particular to a gear box with a shorter power transmission route.

Background

The input shaft of the existing marine gearbox is fixedly provided with a clutch shell and a clutch seat, and an input coupling is connected with the input end of the input shaft by a common spline or a flat key. The driving gear is sleeved on the input shaft in a hollow mode or supported on the box body through two bearings. The size is large and the weight is heavy. Is not suitable for yachts and high-speed boats.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a gear box with a shorter power transmission route, which has the advantages of simple structure, small volume, light weight and good rigidity.

The purpose of the invention is achieved by the following technical scheme: the gear box with the shorter power transmission route comprises an elastic flywheel coupling component directly connected with a diesel engine flywheel, an input coupling fixedly arranged on a housing box body is connected with the elastic flywheel coupling component for transmission, and the input coupling is connected with an input shaft arranged in the housing box body; an input transmission gear meshed with the reversing transmission gear is fixedly arranged on the input shaft, the input transmission gear is connected with an input coupling through an end face key, and a forward piston, a forward return spring and a forward clutch are arranged in the input transmission gear;

The input shaft is also provided with a forward driving gear which rotates relatively, and one end of the forward driving gear is provided with a clutch seat; the in-sequence clutch is composed of an in-sequence outer friction plate arranged in the input transmission gear, an in-sequence inner friction plate arranged on a clutch seat of the in-sequence driving gear, and an in-sequence inner friction plate and an outer friction plate;

a reversing piston, a reversing return spring and a reversing clutch are arranged in a reversing transmission gear fixedly arranged on the transmission shaft; the transmission shaft is also provided with a reverse driving gear which rotates relatively, one end of the reverse driving gear is provided with a clutch seat, a reverse inner friction plate is arranged in the clutch seat, a reverse outer friction plate is arranged in the reverse transmission gear, and the reverse clutch is composed of the reverse inner friction plate and the reverse outer friction plate;

the forward driving gear and the reverse driving gear are respectively meshed with a driven gear, the driven gear and an output coupling are fixedly arranged on an output shaft, and the output coupling outputs power through a tail shaft and a propeller which are connected with a ship body;

and the housing box body is provided with an operating valve for sending a clutch combination command.

As a further technical scheme, the input shaft is supported on the housing box body through a bearing A and a bearing B, the output shaft is supported on the housing box body through a bearing C and a bearing D, and the transmission shaft is supported on the housing box body through a bearing E and a bearing F;

An oil pump for ensuring the forward reversing of the gear box and the lubrication of the gear box is arranged at one shaft end of the transmission shaft, when a reversing instruction is sent by the operating valve, the oil pump conveys the working oil of the gear box to a reversing piston through a reversing working oil path, and the reversing piston moves to press the reversing inner and outer friction plates tightly, namely the reversing clutch is combined; when the control valve sends a forward running command, the oil pump conveys the working oil of the gear box to the forward running piston through the forward running working oil way, and the forward running piston moves to press the forward running inner and outer friction plates tightly, namely the forward running clutch is combined.

As a further technical scheme, two ends of the forward driving gear are respectively provided with a grinding disc A and a grinding disc B which are sleeved on the input shaft; and the two ends of the reversing driving gear are respectively provided with a grinding piece C and a grinding piece D which are sleeved on the transmission shaft.

The invention has the beneficial effects that: the weight of the gear box is greatly reduced, the volume is reduced, the requirement of the same weight of the gear box is met when the diesel engine rotates at the same speed with the same power in western European countries such as America, Germany and the like, so that the gear box of the new generation of yachts, high-speed boats, law enforcement boats, fishing boats, work rigors and the like in China do not depend on imported gear boxes, and the gear box has great practical application significance particularly in the aspects of military patrol boats, battle yachts and the like.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a sectional view B-B of fig. 1.

Description of reference numerals: the hydraulic reversing device comprises an oil pump 1, an operating valve 2, an elastic flywheel coupling assembly 3, an input coupling 4, a housing box 5, a bearing A6, an input transmission gear 7, a forward driving piston 8, a forward returning spring 9, a forward driving gear 10, a grinding plate A11, a bearing B12, an input shaft 13, a bearing C14, an output coupling 15, an output shaft 16, a grinding plate B17, a forward inner friction plate 18, a forward outer friction plate 19, a driven gear 20, a box cover 21, a bearing D22, a rear end cover 23, a bearing E24, a grinding plate C25, a grinding plate D26, a reversing returning spring 27, a reversing inner friction plate 28, a reversing outer friction plate 29, a reversing transmission gear 30, a reversing piston 31, a transmission shaft 32, a driving gear 33, a bearing F34, a forward working oil way 35 and a reversing working oil way 36.

Detailed Description

The invention will be described in detail below with reference to the following drawings: