CN204900769U - Jackshaft main reducer assembly - Google Patents

Abstract

The utility model discloses a jackshaft main reducer assembly, including the casing and establish hollow shaft in the casing, link up the axle, a differential mechanism between inter axle differential, initiative roller gear, driven roller gear, the initiative taper gear, driven bevel gear and wheel, initiative roller gear's the number of teeth is 21, and the modulus is 5.25, driven roller gear's the number of teeth is 49, and the modulus is 5.25, the initiative taper gear's the number of teeth is 12, and the modulus is 10, driven bevel gear's the number of teeth is 30, and the modulus is 10. The utility model discloses an on steyr jackshaft main reducer's basis, through changing inside gear teeth number, modulus, reach the velocity ratio and change 4 -8 into, output torque reaches 11000 -18000NM. Then with this main reducer assembly dress after correcting one's mistakes on bridge at the 4 -8 ton, form neotype jackshaft assembly, this jackshaft assembly can for some road surface than the not good area of narrow road condition, the driving force and the trafficability characteristic of reinforcing car.

Description

A middle axle main reducer assembly

technical field

The utility model relates to an intermediate bridge main reducer assembly.

Background technique

At present, there are mainly 153, 457, Steyr, Mercedes-Benz and other types of heavy truck middle axles on the market. The load of 153 middle axle is 10~13 tons, and the maximum output torque is 30000NM. The load of 457 middle axle is 13 tons, and the maximum output torque is 40000NM. Steyr , Mercedes-Benz is even bigger. The middle axle of the above models cannot be used for vehicles with a smaller tonnage, so the models of the middle axle and the rear axle cannot be used in some places where the road surface is narrow. There is an urgent need in the market for a middle axle with a carrying capacity of 4-8 tons for assembling vehicles with a smaller tonnage.

Contents of the invention

In order to solve the deficiencies in the prior art, the purpose of the utility model is to provide a middle axle final reducer assembly which can enhance the driving ability and passability of the vehicle.

In order to achieve the above object, the utility model adopts the following technical solutions:

It includes a housing and a hollow shaft, a through shaft, an inter-axle differential, a driving cylindrical gear, a driven cylindrical gear, a driving bevel gear, a driven bevel gear and an inter-wheel differential, and the through shaft sleeve It is located inside the hollow shaft, and the through shaft is connected to the inter-shaft differential. The driving cylindrical gear is sleeved on the hollow shaft and connected to the inter-axle differential. A gear shaft is rotated in the housing. The driven cylindrical gear is sleeved on the gear shaft and rotates synchronously with the gear shaft, and the driven cylindrical gear is meshed with the driving cylindrical gear. The driving bevel gear is arranged at one end of the gear shaft, and the driven bevel gear and the wheel The shell of the inter-wheel differential is fixedly connected, and meshed with the active bevel gear, and the two power output ends of the inter-wheel differential are respectively connected with half shafts; the number of teeth of the active cylindrical gear is 21, and the modulus is 5.25; The driven cylindrical gear has 49 teeth and a modulus of 5.25; the driving bevel gear has 12 teeth and a modulus of 10; the driven bevel gear has 30 teeth and a modulus of 10.

The driving bevel gear and the gear shaft are integrally formed.

The driven spur gear is splined to the gear shaft.

The utility model adopts the above technical scheme, on the basis of the Steyr middle axle main reducer, by changing the number of teeth and the modulus of the internal gear, the speed ratio is changed to 4-8, and the output torque reaches 11000-18000NM. Then install the modified main reducer assembly on a 4-8 ton bridge to form a new middle bridge assembly, which can be used in some areas where the road surface is narrow and the road conditions are not good, and the vehicle's performance can be enhanced. Driveability and passability.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

Fig. 1 is a structural schematic diagram of an intermediate axle main reducer assembly of the present invention.

Detailed ways

As shown in Figure 1, the utility model includes a housing 1 and a hollow shaft 11 located in the housing 1, a through shaft 2, an inter-axle differential 3, a driving cylindrical gear 4, a driven cylindrical gear 6, and a driving bevel gear 7. The driven bevel gear 10 and the inter-wheel differential 9, the through-shaft 2 is sleeved inside the hollow shaft 11, and the through-shaft 2 is connected to the inter-axle differential 3, and the driving cylindrical gear 4 is sleeved On the hollow shaft 11 and connected with the inter-axle differential 3; a gear shaft 5 is rotated inside the housing 1, and the driven cylindrical gear 6 is sleeved on the gear shaft 5 and rotates synchronously with the gear shaft 5 , and the driven cylindrical gear 6 is meshed with the driving cylindrical gear 4, the driving bevel gear 7 is arranged at one end of the gear shaft 5, the driven bevel gear 8 is fixedly connected with the shell of the inter-wheel differential 9, and is connected with The driving bevel gear 7 is meshed and connected, and the two power output ends of the inter-wheel differential 9 are respectively connected with half shafts 8; the number of teeth of the driving cylindrical gear 4 is 21, and the modulus is 5.25; the driven cylindrical gear 6 The number of teeth is 49, and the module is 5.25; the number of teeth of the driving bevel gear 7 is 12, and the module is 10; the number of teeth of the driven bevel gear 8 is 30, and the module is 10.

The driving bevel gear 7 is integrally formed with the gear shaft 5 .

The driven cylindrical gear 6 is connected to the gear shaft 5 through a spline.

The utility model is based on the Steyr middle axle main reducer, by changing the number of teeth and the modulus of the internal gear, the speed ratio is changed to 4-8, and the output torque reaches 11000-18000NM. Then install the modified main reducer assembly on a 4-8 ton bridge to form a new middle bridge assembly, which can be used in some areas where the road surface is narrow and the road conditions are not good, and the vehicle's performance can be enhanced. Driveability and passability.

Claims (3)

1. a main reducer of middle axle assembly, comprise housing and be located at hollow shaft in housing, through shaft, interaxial differential, initiatively cylindrical gears, driven cylindrical gear, drive bevel gear, driven wheel of differential and inter-wheel differential, described through shaft is set in hollow shaft inside, and through shaft and interaxial differential are in transmission connection, described active cylindrical gears to be socketed on hollow shaft and to be in transmission connection with interaxial differential; Rotate in described housing and be provided with a gear shaft, described driven cylindrical gear to be socketed on gear shaft and with gear shaft synchronous axial system, and driven cylindrical gear is connected with a joggle with active cylindrical gears, described drive bevel gear is located at one end of gear shaft, described driven wheel of differential is fixedly connected with the shell of inter-wheel differential, and be connected with a joggle with drive bevel gear, two clutch ends of described inter-wheel differential are connected to semiaxis; It is characterized in that: the number of teeth of described active cylindrical gears is 21, and modulus is 5.25; The number of teeth of described driven cylindrical gear is 49, and modulus is 5.25; The number of teeth of described drive bevel gear is 12, and modulus is 10; The number of teeth of described driven wheel of differential is 30, and modulus is 10.

2. a kind of main reducer of middle axle assembly according to claim 1, is characterized in that: described drive bevel gear and gear shaft are formed in one.

3. a kind of main reducer of middle axle assembly according to claim 1, is characterized in that: described driven cylindrical gear and gear shaft pass through spline joint.