CN204432743U - A kind of column assy of manned vehicle - Google Patents

Abstract

The utility model discloses a kind of column assy of manned vehicle, comprise steering column expansion regulating mechanism and steering column pitching adjusting mechanism, is the column assy of the adjustable manned vehicle of electronic four-way.Solving existing car steering tube column can only mechanical adjustment, can not the problem of motorized adjustment.Steering column adopts two motor output power respectively, realizes steering column pitching and flexible motorized adjustment by the transmission of worm and gear.Bearing circle motorized adjustment greatly can reduce chaufeur and regulate the difficulty of bearing circle, can according to the adjustment having needed bearing circle of chaufeur, and adjusting position is more accurate.

Description

A steering column assembly for a passenger car

technical field

The utility model relates to a steering column assembly of a passenger car.

Background technique

At present, domestically produced passenger cars are generally equipped with a steering column assembly with a steering wheel position adjustment function, but all of them are mechanically adjustable steering column assemblies. pitch angle. As shown in Figure 5, a mechanically adjustable steering column assembly includes an upper steering shaft assembly 21, a swing tube assembly 22, a sliding tube assembly 23, a sliding spline shaft 24, and a steering column bracket assembly 25, adjusting handle 26, cam locking block 27, adjusting pull wire 28; when the position of the steering wheel needs to be adjusted, the driver presses the adjusting handle 26 clockwise, and the adjusting handle 26 rotates clockwise around the first bolt 29 to adjust the pull wire 28 is preloaded and drives the cam locking block 27 to rotate simultaneously. At this time, the driver can move the steering wheel in telescoping and pitching directions with both hands according to his own habits to adjust it to a suitable position; when the driver pushes forward When turning the steering wheel, the steering wheel transmits the force to the upper steering shaft assembly 21, and then to the swing tube assembly 22. The swing tube assembly 22 is connected to the sliding tube assembly 23 through the pin shaft 30, and drives the sliding tube assembly 23 to move forward together. forward movement, and then complete the shrinkage adjustment of the steering column assembly; similarly, when the driver pulls the steering wheel backward, the elongation adjustment of the steering column assembly can be completed; when the driver presses the steering wheel vertically, the steering wheel will force The power is transmitted to the upper steering shaft assembly 21, and then the force is transmitted to the swing tube assembly 22, and the swing tube assembly rotates clockwise downward around the axis of the pin shaft 30, and then the bowing adjustment of the steering column assembly is completed; similarly, when When the driver lifts the steering wheel vertically, the head-up adjustment of the steering column assembly can be completed. This kind of steering column assembly is relatively difficult to operate, which affects the comfort of the driver, and the adjustment position is not precise enough.

Contents of the invention

In order to solve the problems in the prior art, the utility model provides a steering column assembly of a passenger car. The utility model is an electric four-way adjustable steering column assembly of a passenger car, which solves the problem that the existing automobile steering column can only be adjusted mechanically but not electrically.

The steering column assembly of a passenger car provided by the utility model includes a steering column telescopic adjustment mechanism and a steering column pitch adjustment mechanism; the steering column telescopic adjustment mechanism includes an upper steering shaft assembly, a swing pipe assembly Assembly, sliding tube assembly, sliding spline shaft, steering column bracket assembly, telescopic motor, pitch motor, first worm gear, first screw, double-ended nut assembly telescopic motor worm, second screw, limit screw, The second bolt; the telescopic motor is installed on the steering column bracket assembly, the stud nut assembly is fixed on the sliding pipe assembly through the second bolt, the telescopic motor outputs power through the telescopic motor worm, and then transmits it to the first through the first worm gear Screw, the double-ended nut assembly installed on the first screw drives the sliding tube assembly to move in the axial direction of the first screw with the rotation of the first screw, the telescopic motor moves forward or reverse, and the steering column assembly The components are respectively expressed as contraction or elongation to achieve the adjustment of the length of the steering column assembly; relative to the design position of the vehicle, the steering column assembly shrinks by 20±1mm and elongates by 25±1mm respectively, and the telescopic adjustment of the steering column The mechanism is respectively limited in extension and contraction through the limit screw on the steering column bracket assembly and the limit groove on the slide tube assembly.

Steering column pitch adjustment mechanism includes upper steering shaft assembly, swing pipe assembly, sliding pipe assembly, pitch motor, pitch motor worm, second worm wheel, second screw, pin shaft, nut assembly, pitch motor bracket, limiter position washer, limit slot; the pitch motor outputs power through the pitch motor worm, and the power is transmitted to the second screw through the second worm wheel. The nut assembly installed on the sliding tube assembly drives the swing tube assembly with the rotation of the second screw. Rotate clockwise or counterclockwise around the axis of the pin shaft, the pitch motor moves forward and reverse, and the steering column assembly is pitched or tilted respectively, to achieve the adjustment of the steering column assembly in the pitch or tilt angle , relative to the design position of the vehicle, the steering column assembly is adjusted counterclockwise around the axis of the pin shaft by 8.5°±1° to reach the top dead center, and adjusted clockwise by 6.75°±1° to reach the bottom dead point, and the steering column pitch adjustment The mechanism is adjusted counterclockwise, and the position is limited by the contact of the nut assembly and the limit washer; the steering column pitch adjustment mechanism is adjusted clockwise, and the position is limited by the contact of the nut assembly and the pitch motor bracket.

Beneficial effects: the utility model provides an electric four-way adjustable steering column assembly of a passenger car, which solves the problem that the existing automobile steering column can only be adjusted mechanically but not electrically. Including the steering column telescopic adjustment mechanism and the steering column pitch adjustment mechanism, two motors are used to output power respectively, and the electric adjustment of the steering column pitch and telescopic is realized through the transmission of the worm gear. The electric adjustment of the steering wheel can greatly reduce the difficulty for the driver to adjust the steering wheel, and the adjustment of the steering wheel can be completed according to the needs of the driver, and the adjustment position is more accurate.

Description of drawings

Figure 1 is a schematic diagram of the new steering column assembly.

Fig. 2 is a schematic diagram of the telescopic adjustment mechanism.

Figure 3 is a schematic diagram of the pitch adjustment mechanism.

Fig. 4 is an internal schematic diagram of the pitch adjustment transmission mechanism.

Fig. 5 is a schematic diagram of a mechanically adjustable steering column assembly.

Specific implementation

Below in conjunction with accompanying drawing, the utility model is further described:

The utility model relates to a steering column assembly of a passenger car, which uses two motors to output power respectively, and realizes electric adjustment in four directions of pitching and telescoping of the steering column through the transmission of a worm gear.

A steering column assembly of a passenger car includes a steering column telescopic adjustment mechanism and a steering column pitch adjustment mechanism;

As shown in Figures 1 and 2, the steering column telescopic adjustment mechanism includes an upper steering shaft assembly (1), a swing tube assembly (2), a sliding tube assembly (3), and a sliding spline shaft (4) , steering column bracket assembly (5), telescopic motor (6), pitch motor (7), first worm gear (8), first screw (9), stud nut assembly (10) telescopic motor worm (11 ), the second screw rod (14), the limit screw (15), the second bolt (17); the telescopic motor (6) is installed on the steering column bracket assembly (5), and the stud nut assembly (10) passes through the Two bolts (17) are fixed on the sliding tube assembly (3), and the telescopic motor (6) outputs power through the telescopic motor worm (11), and then transmits power to the first screw (9) through the first worm wheel (8), and is installed on the The stud nut assembly (10) on the first screw rod (9) drives the sliding tube assembly (3) to move in the axial direction of the first screw rod (9) along with the rotation of the first screw rod (9), and the telescopic motor (6) For forward or reverse movement, the steering column assembly shows contraction or elongation respectively to achieve the adjustment of the length of the steering column assembly; relative to the design position of the vehicle, the steering column assembly shrinks 20 respectively ±1mm, elongation 25±1mm, the telescopic adjustment mechanism of the steering column is respectively adjusted by the limit screw (15) on the steering column bracket assembly (5) and the limit slot (21) on the sliding tube assembly (3). Extension and contraction limit.

As shown in Figures 3 and 4, the steering column pitch adjustment mechanism includes an upper steering shaft assembly (1), a swing tube assembly (2), a sliding tube assembly (3), a pitch motor (7), and a pitch motor worm ( 12), second worm gear (13), second screw rod (14), pin shaft (16), nut assembly (18), pitch motor bracket (19), limit washer (20), limit groove (21) ; The pitch motor (7) outputs power through the pitch motor worm (12), and the power is transmitted to the second screw (14) through the second worm wheel (13), and the nut assembly (18) installed on the slide tube assembly (3) With the rotation of the second screw (14), the swing tube assembly (2) is driven to rotate clockwise or counterclockwise around the axis of the pin shaft (16), the pitch motor (7) moves forward and reverse, and the steering tube The column assembly is pitched or tilted respectively to achieve the adjustment of the steering column assembly in the pitch or tilt angle. The steering column assembly is adjusted counterclockwise around the axis of the pin shaft 16 by 8.5°±1 relative to the design position of the vehicle. ° to reach the top dead point, adjust clockwise 6.75°±1° to reach the bottom dead point, adjust the steering column pitch adjustment mechanism counterclockwise, and limit the position through the contact of the nut assembly (18) and the limit washer (20); the steering tube The column pitch adjustment mechanism is adjusted clockwise, and the position is limited by the contact between the nut assembly (18) and the pitch motor bracket (19).

Claims (3)

1. A steering column assembly for a passenger car, characterized in that it includes a steering column telescopic adjustment mechanism and a steering column pitch adjustment mechanism; the steering column telescopic adjustment mechanism includes an upper steering shaft assembly (1 ), swing tube assembly (2), sliding tube assembly (3), sliding spline shaft (4), steering column bracket assembly (5), telescopic motor (6), pitch motor (7), first Worm wheel (8), first screw (9), stud nut assembly (10), telescopic motor worm (11), second screw (14), limit screw (15) and second bolt (17); telescopic motor (6) Installed on the steering column bracket assembly (5), the stud nut assembly (10) is fixed on the sliding tube assembly (3) through the second bolt (17), and the telescopic motor (6) is connected through the telescopic motor worm (11) The output power is transmitted to the first screw rod (9) through the first worm gear (8), and the stud nut assembly (10) installed on the first screw rod (9) follows the movement of the first screw rod (9) Rotation drives the sliding tube assembly (3) to move in the axial direction of the first screw rod (9), the telescopic motor (6) moves forward or reverse, and the steering column assembly shows contraction or elongation respectively to achieve steering To adjust the length of the column assembly, the telescopic adjustment mechanism of the steering column passes through the limit screw (15) on the steering column bracket assembly (5) and the limit slot (21) on the sliding tube assembly (3) respectively. Carry out expansion and contraction limit; The steering column pitch adjustment mechanism includes an upper steering shaft assembly (1), a swing tube assembly (2), a sliding tube assembly (3), a pitch motor (7), a pitch motor worm (12), a second Worm wheel (13), second screw rod (14), pin shaft (16), nut assembly (18), pitch motor bracket (19), limit washer (20) and limit groove (21); pitch motor (7 ) output power through the pitch motor worm (12), the power is transmitted to the second screw (14) through the second worm gear (13), and the nut assembly (18) installed on the sliding tube assembly (3) follows the second screw The rotation of (14) drives the swing pipe assembly (2) to rotate clockwise or counterclockwise around the axis of the pin shaft (16). When the pitch motor (7) moves forward and reverse, the steering column assembly Respectively manifested as pitch or pitch, to achieve the adjustment of the steering column assembly in the pitch or pitch angle, the steering column pitch adjustment mechanism is adjusted counterclockwise, and the position is limited by the contact of the nut assembly (18) and the limit washer (20) ; The steering column pitch adjustment mechanism is adjusted clockwise, and the position is limited by the contact of the nut assembly (18) and the pitch motor bracket (19). 2. The steering column assembly of a passenger car as claimed in claim 1, wherein the steering column assembly shrinks by 20 ± 1 mm and elongates by 25 ± 1 mm relative to the design position of the vehicle. 1mm. 3. The steering column assembly of a passenger car according to claim 1, wherein the steering column assembly is adjusted counterclockwise by 8.5 °±1°, adjust 6.75°±1° clockwise.