阅读说明：本技术 一种履带式两栖车的动力传递系统 (Power transmission system of crawler-type amphibious vehicle ) 是由 不公告发明人 于 2018-06-19 设计创作，主要内容包括：本发明公布了一种履带式两栖车的动力传递系统,它包括发动机总成、变速器、传动接头、主传动轴、液力传动箱、传动轴、传动边箱、驱动轮总成、传动后轴和折叠式螺旋桨,其中发动机总成与变速器连为一体,主传动轴的两端分别与变速器和液力传动箱相接,液力传动箱两侧的输出轴经传动接头、传动轴和传动边箱分别与(两)驱动轮总成相接、其后端的输出轴经传动接头和传动后轴直接与折叠式螺旋桨相接,该种动力传递系统具有设计先进、结构合理,占用空间小、传递效率高,可与多种发动机配套、易于维护保养等显著特点,故能较好地满足多种履带式驱动车辆动力传递的迫切需要。(The invention discloses a power transmission system of a crawler-type amphibious vehicle, which comprises an engine assembly, a transmission joint, a main transmission shaft, a hydraulic transmission box, a transmission shaft, a transmission side box, a driving wheel assembly, a transmission rear shaft and a folding propeller, wherein the engine assembly is connected with the speed changer into a whole, two ends of the main transmission shaft are respectively connected with the speed changer and the hydraulic transmission box, output shafts at two sides of the hydraulic transmission box are respectively connected with the driving wheel assembly(s) through the transmission joint, the transmission shaft and the transmission side box, the output shaft at the rear end is directly connected with the folding propeller through the transmission joint and the transmission rear shaft, the power transmission system has the advantages of advanced design, reasonable structure, small occupied space, high transmission efficiency, the crawler-type power transmission device has the remarkable characteristics of being matched with various engines, being easy to maintain and the like, so that the urgent need of power transmission of various crawler-type driving vehicles can be better met.)

1. A power transmission system of a crawler-type amphibious vehicle comprises an engine assembly (1), a transmission (2), a transmission joint (3), a main transmission shaft (4), a hydraulic transmission box (5), a transmission shaft (6), a transmission side box (7), a driving wheel assembly (8), a transmission rear shaft (9) and a folding propeller (10), and is characterized in that the engine assembly (1) and the transmission (2) are connected into a whole through fastening bolts.

2. A power transmission system for a tracked amphibious vehicle as claimed in claim 1, characterised in that both ends of the main drive shaft (4) are connected via the drive joint (3) to the output shaft of the transmission (2) and to the input shaft of the hydrodynamic transmission case (5), respectively.

3. The power transmission system of a crawler-type amphibious vehicle as claimed in claim 1, wherein output shafts on both sides of the hydraulic transmission case (5) are respectively connected with input shafts of the transmission side cases (7) through the transmission joint (3) and the transmission shaft (6), and output shafts of the transmission side cases (7) are directly connected with the driving wheel assembly (8).

4. The power transmission system of a crawler-type amphibious vehicle as claimed in claim 1, wherein power (torque) from an engine assembly (1) is transmitted into a hydraulic transmission case (5) through a transmission (2) and a main drive shaft (4), and then is manually transferred to rapidly cut off the transmission of the power (torque) to a rear drive shaft (9) and only transmitted to the drive joints (3), the drive shafts (6) and the drive sidecases (7) on both sides of the hydraulic transmission case (5), which is a "power (torque) transmission mode" in a "land travel" state.

5. A power transmission system for a tracked amphibious vehicle as claimed in claim 1, characterised in that the output shaft at the rear end of the hydraulic transmission case (5) is directly connected to the folding propeller (10) via the transmission joint (3) and the transmission rear shaft (9).

6. The power transmission system of a crawler-type amphibious vehicle as claimed in claim 1, wherein power (torque) from an engine assembly (1) is transmitted into a hydraulic transmission case (5) through a transmission (2) and a main drive shaft (4), and then is manually transferred to cut off the power transmission to a drive joint (3) and a drive shaft (6) on both sides and only transmitted to a rear drive shaft (9), which is a "power (torque) transmission mode" in a "water surface float and cross" state.

7. A power transmission system for a tracked amphibious vehicle as claimed in claim 1, wherein brake assemblies 8a are sequentially mounted on the drive wheel assembly(s) (8) respectively.

Technical Field

The invention relates to a power transmission system of a common vehicle, in particular to a power transmission system widely applied to a crawler-type amphibious vehicle.

Background

At present, the multi-wheel amphibious vehicle manufactured at home and abroad adopts a chain wheel and a chain for transmitting the power. Practice proves that the power transmission mode has three significant defects, namely low transmission efficiency, high manufacturing cost and troublesome maintenance. The power transmission system of the crawler-type amphibious vehicle (application/patent No. 201610655489.5; 2016, 8, 11) of the inventor preferably improves the defects, but the selected parts and functions of the system are changed greatly, so that the power transmission system needs to be improved.

Disclosure of Invention

The invention aims to provide a power transmission system of a crawler-type amphibious vehicle, which has the advantages of more scientific design, more reasonable structure, more reliable performance and more convenient and fast matching. The power transmission system has the remarkable characteristics of advanced design, reasonable structure, small occupied space, high transmission efficiency, capability of being matched with various engines, convenience in assembly, easiness in maintenance and the like, so that the urgent need of power transmission of various crawler-type amphibious vehicles can be better met.

The invention adopts the following technical scheme to achieve the purpose of the invention. A power transmission system of a crawler-type amphibious vehicle comprises an engine assembly 1, a transmission 2, a transmission joint 3, a main transmission shaft 4, a hydraulic transmission box 5, a transmission shaft 6, a transmission side box 7, a driving wheel assembly 8, a transmission rear shaft 9 and a folding propeller 10. The engine assembly 1 and the speed variator 2 are connected into a whole, and two ends of the main transmission shaft 4 are respectively connected with an output shaft of the speed variator 2 and an input shaft of the hydraulic transmission case 5 through the transmission joint 3.

Output shafts on two sides of the hydraulic transmission case 5 are directly connected with an input shaft of a transmission side case 7 through the transmission joint 3 and the transmission shaft 6, and the output shaft of the transmission side case 7 is directly connected with a driving wheel assembly 8.

The output shaft at the rear end of the hydraulic transmission case 5 is directly connected with the folding propeller 10 through the transmission joint 3 and the transmission rear shaft 9.

The driving wheel assembly (8) is orderly provided with a brake assembly (8 a).

The hydraulic gearbox 5 has three functions of 'transfer, clutch and speed change'. The power (torque) from the engine assembly 1 enters the hydraulic transmission case 5 through the main transmission shaft 4 after being changed in speed through the speed changer 2, and the hydraulic transmission case 5 has a transfer function and can convert the power (torque) transmission mode into a land running state or a water surface floating state (through manual transfer operation).

In the state of land running, the power (torque) of the engine assembly 1 is directly transmitted into the transmission side boxes 7 and the driving wheel assemblies 8 which are fixedly arranged on the two sides of the rear of the vehicle through the transmission joints 3 and the transmission shafts 6 which are positioned on the two sides of the hydraulic transmission box 5.

Under the state of 'water surface floating', the power (torque) of the engine assembly 1 is directly transmitted to the folding propeller 10 through the hydraulic transmission case 5 and the transmission rear shaft 9.

Due to the adoption of the technical scheme, the invention perfectly achieves the aim. It has the following outstanding advantages (i.e. beneficial effects) compared with similar products.

1. Advanced design, simple structure and high transmission efficiency.

2. The matching is more convenient, the maintenance is easy, and the cost performance is high.

3. Can be better adapted to various crawler-type driving vehicles.

Drawings

The invention is further described below with reference to the given figures.

Fig. 1 is a top view of the overall structure of the present invention.

Fig. 2 is a side view of the overall structure of the present invention.

Fig. 3 is a schematic diagram of power transmission in the "land travel" state of the present invention.

FIG. 4 is a schematic view showing power transmission in the "water surface floating" state of the present invention.

Detailed Description

As can be seen from fig. 1 and 2, the present invention includes an engine assembly 1, a transmission 2, a transmission joint 3, a main transmission shaft 4, a hydraulic transmission case 5, a transmission shaft 6, a transmission side case 7, a driving wheel assembly 8, a transmission rear shaft 9 and a folding propeller 10.

As also shown in fig. 1 and 2, a main drive shaft 4 is specially provided to facilitate easy assembly of the hydraulic transmission case 5 with various types of engine assemblies 1 and transmissions 2.

As can be seen from fig. 1, 2, 3 and 4, a hydrodynamic transmission case 5 having three functions of "transfer, clutch and speed change" is particularly installed to enable the power (torque) of the engine to be transmitted to the driving wheel assembly(s) 8 and the foldable propeller 10, respectively.

After the power (torque) from the engine assembly 1 is transmitted into the hydraulic transmission case 5 through the transmission 2 and the main transmission shaft 4, the transmission of the power (torque) to the transmission rear shaft 9 can be cut off rapidly and only the transmission to the transmission joint 3 and the transmission shaft 6 at two sides can be realized through artificial transfer operation, which is the 'power (torque) transmission mode' under the 'land driving' state.

In the land driving state, the power (torque) of the engine assembly 1 is directly transmitted to the driving wheel assembly 8 through the transmission joints 3 and the transmission shafts 6 which are positioned at two sides of the hydraulic transmission box 5 and the transmission side box 7.

As is also known from fig. 1, 2, 3 and 4, after the power (torque) from the engine assembly 1 is transmitted to the hydraulic transmission 5 through the transmission 2 and the main transmission shaft 4, the transmission of the power to the transmission joints 3 and the transmission shafts 6 on both sides can be cut off and only the power (torque) can be transmitted to the rear transmission shaft 9 by performing a transfer operation.

In the 'water surface floating' state, the power (torque) of the engine assembly 1 is directly transmitted to the folding propeller 10 through the transmission rear shaft 9 connected with the hydraulic transmission case 5.

As also shown in fig. 1, 2, 3 and 4, in order to realize emergency braking of the vehicle during land travel, a brake assembly 8a is sequentially installed on the driving wheel assembly(s) 8.

As is further understood from fig. 1, 2, 3 and 4, the power transmission system can be widely applied to the power transmission of various crawler-type driven vehicles due to the remarkable characteristics.