CN201326692Y - Angle transmission box of multi-axis heavy truck - Google Patents

Abstract

The utility model provides an angle transmission box of a multi-axis heavy truck. The upper end of an input shaft upwardly protrudes from a box body; the lower part of the input shaft is supported in the box body through a bearing; a first bevel gear is mounted at the bottom end of the input shaft; the first bevel gear is meshed with a second bevel gear on a forward rotation output shaft; the forward rotation output shaft is supported in the box body through the bearing; the back end of the forward rotation output shaft backwardly protrudes from the box body; a first transmission gear is sleeved at the middle-back part of the forward rotation output shaft; the first transmission gear is meshed with a second transmission gear on a reverse rotation output shaft; the reverse rotation output shaft is supported in the box body through the bearing; and the back end of the reverse rotation output shaft further backwardly protrudes from the box body. The utility model enables the transmission part to be under small stress, guarantees the entire truck steering flexibility and reliability, and has the characteristics of labor-saving operation, reasonable design, simple structure, easy assembly, light overall weight, low material consumption, low production cost and the like.

Description

Multi-axle heavy type automobile right angle gear box

Technical field

The utility model relates to a kind of the steering gear of automobile, relates in particular to the right angle gear box of multi-axle heavy type automobile.

Background technique

At present, four heavy-duty cars adopt first and second axle steer usually, turn to control and the relatively good design and installation of power steering mechanism.And the heavy-duty car more than five and five, for reducing turning radius, except that first and second took turns axle steer, the 5th wheel shaft or the 4th, the 5th wheel shaft also adopted steering axle.For the power steering of realizing the 5th bridge or fourth, fifth bridge is reliably handled, the main swing arm pull bar series type hydraulic power-assisted steering mechanism that adopts, promptly adopt usually after first and second steering axle, polyphone is installed the fore-and-aft control pull bar and is installed the hydraulic mechanical type assisted power steering system of power-assisted oil cylinder additional.The Placement of this mechanism is: in the longitudinal tie swing arm before second steering wheel shaft, install longitudinal tie additional, after too much root longitudinal tie and swing arm serial connection and reversing drive, be connected on the front swing arm of the 4th and the 5th steering shaft longitudinal tie, and by turning to swing arm or install the hydraulic booster oil cylinder additional two, four, five at the right wheel of steering axle, realize control to fourth, fifth steering shaft of vehicle reverse power-assisted steering handle.

More than mechanism structure complexity, the assembling of control front steering axle and back steering axle positive and reverse steering are difficult, and steering drag link and steering arm design thicklyer, so overall weight is heavy, material expends many, and cost of production is higher.Simultaneously, drive part is stressed bigger, and flexibility and reliability that car load turns to are relatively poor, and handles effort.

The model utility content

Technical problem to be solved in the utility model is to provide a kind of multi-axle heavy type automobile right angle gear box, and is flexible, reliable to realize that car load turns to.

The technical solution of the utility model is as follows: a kind of multi-axle heavy type automobile right angle gear box, comprise casing, input shaft and output shaft, its key is: the upper end of described input shaft protrudes upward outside the casing, the bottom of input shaft is bearing in the casing by bearing, in the bottom of input shaft first bevel gear is installed, this first bevel gear and second bevel gear engagement of just transferring on the shaft, the described shaft that just transferring is bearing in the casing by bearing, is just transferring the rear end of shaft and is stretching out outside the casing backward; Just transferring mid-rear portion suit first driving gear of shaft, this first driving gear is meshed with second driving gear of counter-rotating on the output shaft, and described counter-rotating output shaft is bearing in the casing by bearing, and also stretch out outside the casing backward the rear end of counter-rotating output shaft.

In the utility model, input shaft is connected with the kingpin of steering wheel below, is just transferring shaft and is being connected with front steering axle by preceding steering equipment, and the counter-rotating output shaft is connected with the back steering axle by back steering equipment.When the pilot control steering wheel is given motor turning, the kingpin of steering wheel below drives the input shaft work of right angle gear box, the double output shaft of exporting backward on the right angle gear box is done forward and reverse rotation, and drive forward and backward steering axle by corresponding steering equipment, realize forward and reverse turning to, thereby making automobile finish to turn to travels.More than simple and reliable for structure, easy accessibility is when guaranteeing that the forward and backward output shaft rotates with opposite direction, both synchronisms have been ensured, like this reduce drive part stressed in, improved flexibility and reliability that car load turns to greatly, and handled laborsaving.

In order to make structure compact more, further improve the effect of transmission of torque, above-mentioned input shaft is just transferring shaft and is being parallel to the counter-rotating output shaft with just to transfer shaft perpendicular, and the counter-rotating output shaft is positioned at the top of just transferring shaft.

Beneficial effect: the utility model makes drive part stressed very little, and flexibility and reliability that car load turns to are secure, and handle laborsaving, have reasonable in design, simple in structure, assembling easily, characteristics such as overall weight is light, material expends less, cost of production is low.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 1, the utility model by casing 1, input shaft 2, first bevel gear 3, second bevel gear 4, just transfer shaft 5, parts such as counter-rotating output shaft 6, first driving gear 7 and second driving gear 8 constitute.Wherein input shaft 2 is vertical distribution, and the upper end of this input shaft 2 protrudes upward outside the casing 1, and can be connected by the lower end of universal joint and kingpin 9 (among the figure shown in the two-dot chain line).The bottom of described input shaft 2 is bearing in the casing 1 by two bearings, and first bevel gear 3 is installed in the bottom of input shaft 1, this first bevel gear 3 and second bevel gear, 4 engagements of just transferring on the shaft 5.The described shaft 5 that just transferring is horizontal arrangement, and is bearing in the casing 1 by two bearings, is just transferring the rear end of shaft 5 and is stretching out backward outside the casing 1, and extension can be connected by the front end of universal joint and front steering axle transmission shaft 10 (among the figure shown in the two-dot chain line).At mid-rear portion suit first driving gear 7 that just transfers shaft 5, this first driving gear 7 is meshed with second driving gear 8 of counter-rotating on the output shaft 6.Described counter-rotating output shaft 6 is positioned at the top of just transferring shaft 5, and both are parallel to each other, and sense of rotation is opposite.Counter-rotating output shaft 6 is bearing in the casing 1 by two bearings, and also stretch out outside the casing 1 backward the rear end of counter-rotating output shaft 6, and extension can be connected by the front end of universal joint and back steering axle transmission shaft 11 (among the figure shown in the two-dot chain line).

The utility model is work like this:

When the pilot control steering wheel is given motor turning, the kingpin 9 of steering wheel below drives input shaft 2 rotations of right angle gear box, input shaft 2 drives by pitch wheel and is just transferring shaft 5 rotations, when just transferring shaft 5 rotations, drive 6 runnings of counter-rotating output shaft, and the switched in opposite of forward and backward output shaft 5,6, forward and backward output shaft 5,6 drives forward and backward steering axle by corresponding steering equipment, realize forward and reverse turning to, thereby making automobile finish to turn to travels.

Claims (3)

1, a kind of multi-axle heavy type automobile right angle gear box, comprise casing, input shaft and output shaft, it is characterized in that: the upper end of described input shaft (2) protrudes upward outside the casing (1), the bottom of input shaft (2) is bearing in the casing (1) by bearing, in the bottom of input shaft (2) first bevel gear (3) is installed, this first bevel gear (3) and second bevel gear (4) engagement of just transferring on the shaft (5), the described shaft (5) that just transferring is bearing in the casing (1) by bearing, is just transferring the rear end of shaft (5) and is stretching out backward outside the casing (1); Just transferring mid-rear portion suit first driving gear (7) of shaft (5), this first driving gear (7) is meshed with second driving gear (8) in counter-rotating output shaft (6), described counter-rotating output shaft (6) is bearing in the casing (1) by bearing, and also stretch out outside the casing (1) backward the rear end of counter-rotating output shaft (6).

2, multi-axle heavy type automobile right angle gear box according to claim 1 is characterized in that: described input shaft (2) is just transferring shaft (5) and is being parallel to counter-rotating output shaft (6) with just to transfer shaft (5) perpendicular.

3, multi-axle heavy type automobile right angle gear box according to claim 1 and 2, it is characterized in that: described counter-rotating output shaft (6) is positioned at the top of just transferring shaft (5).