阅读说明：本技术 一种矿用自卸车驾驶室用转向结构 (Steering structure for cab of mining dump truck ) 是由 韩磊 张杰山 秦红义 乔奎普 王周 李国庆 汤治明 于 2021-09-26 设计创作，主要内容包括：一种矿用自卸车驾驶室用转向结构,包括转向柱总成,转向柱总成通过转向柱上固定支座和转向柱下固定支座固定在驾驶室内,转向柱总成包括方向盘,下方设有组合开关和调节把手,方向盘通过可伸缩转向杆连接有转向节,转向节连接有设置在驾驶室外的转向器。本发明的矿用自卸车驾驶室用转向结构,转向柱与转向器中心面错位布置时稳定传递转向信号,转向器与转向柱直接连接,省去现有技术中的万向节柱和连接杆,节省空间；转向器固定在驾驶室外侧,满足转向器与驾驶员隔离的要求；上下固定支座结构简单可靠,拆装便捷。(The utility model provides a mining dump truck driver's cabin is with turning to structure, includes the steering column assembly, and the steering column assembly passes through fixed bearing on the steering column and steering column fixing support under the steering column and fixes in the driver's cabin, and the steering column assembly includes the steering wheel, and the below is equipped with combination switch and adjusts the handle, and the steering wheel is connected with the knuckle through scalable steering column, and the knuckle is connected with the steering gear of setting outside the driver's cabin. According to the steering structure for the cab of the mining dump truck, the steering column and the steering gear center plane are arranged in a staggered mode, the steering signal is stably transmitted, the steering gear is directly connected with the steering column, a universal joint column and a connecting rod in the prior art are omitted, and space is saved; the steering gear is fixed outside the cab, and the requirement of isolating the steering gear from a driver is met; the upper and lower fixed supports are simple and reliable in structure and convenient to disassemble and assemble.)

1. The utility model provides a mining dump truck is to steering structure for driver's cabin which characterized in that: comprises a steering column assembly (1), the steering column assembly (1) is fixed in a cab through an upper steering column fixed support (101) and a lower steering column fixed support (4), the steering column assembly (1) comprises a steering wheel (1-1), a combination switch (1-2) and an adjusting handle (1-3) are arranged below the steering wheel (1-1), the steering wheel (1-1) is connected with a steering knuckle (1-7) through a telescopic steering rod (1-6), the steering knuckle (1-7) is connected with a steering gear (3) arranged outside the cab, the steering column lower fixed support (4) is connected with a steering gear fixed seat (2), the steering knuckle (1-7) is arranged in the steering gear fixing seat (2), and a cover plate (7) is arranged at one end, close to the lower steering column fixing support (4), of the steering gear fixing seat (2).

2. The steering structure for the cab of the mining dump truck as claimed in claim 1, wherein: the upper steering column fixing support (101) and the lower steering column fixing support (4) are respectively arranged on a front cross beam and a bottom plate of a cab, the upper steering column fixing support (101) comprises a support plate (101-1) formed by bending, cutting and blanking and reinforcing ribs (101-2) arranged on two sides of the support plate, and 4 long round holes used for fixing the steering column assembly (1) are formed in the upper steering column fixing support (101).

3. The steering structure for the cab of the mining dump truck as claimed in claim 1, wherein: the steering column lower fixing support (4) comprises a channel steel I (4-1), a channel steel II (4-4), a channel steel III (4-7), a channel steel IV (4-8), a cylinder (4-2), a flange plate (4-3), a rib plate (4-5) and a bending plate (4-6), wherein the flange plate (4-3) is arranged in the cylinder (4-2), a through hole for mounting the steering column assembly (1) is formed in the flange plate (4-3), and a mounting hole for mounting a brake pedal is formed in the rib plate (4-5).

4. The steering structure for the cab of the mining dump truck as claimed in claim 1, wherein: the combination switch (1-2) is provided with a telescopic rubber sleeve.

5. The steering structure for the cab of the mining dump truck as claimed in claim 1, wherein: a steering column support (1-4) is arranged between the steering wheel (1-1) and the steering rod (1-6), the steering column support (1-4) comprises an upper connecting block (1-4-2) and a lower connecting block (1-4-1), the upper connecting block (1-4-2) is connected with the steering wheel (1-1), the lower connecting block (1-4-1) is arranged on a fixed support (101) on the steering column through 4 long round holes, the upper connecting block (1-4-2) is hinged with the lower connecting block (1-4-1) through a pin shaft (1-5), and the adjusting handle (1-3) is connected with the upper connecting block (1-4-2) and the lower connecting block (1-4-1) through a stud bolt (18), the upper connecting block (1-4-2) is provided with a threaded hole matched with the stud bolt (18), the lower connecting block (1-4-1) is provided with an arc-shaped long round hole for the stud bolt (18) to move, and the stud bolt (18) is connected with the adjusting handle (1-3) through a square hole.

6. The steering structure for the cab of the mining dump truck as claimed in claim 1, wherein: the steering rod (1-6) comprises a rod I (1-6-1), a rod II (1-6-2) and a rod III (1-6-3), the rod I (1-6-1) is connected with the rod II (1-6-2) through a universal joint, the rod II (1-6-2) is connected with the rod III (1-6-3) through a spline, a spline hole is formed in the hollow shaft in the middle of the rod II (1-6-2), the rod III (1-6-3) is an external spline shaft, and a limiting boss is arranged at one end, arranged on the rod II (1-6-2), of the rod III (1-6-3).

7. The steering structure for the cab of the mining dump truck as claimed in claim 1, wherein: one end of the steering knuckle (1-7) is connected with the steering rod (1-6) through a universal joint, and the other end of the steering knuckle (1-7) is connected with the steering gear (3) through a spline (15).

8. The steering structure for the cab of the mining dump truck as claimed in claim 1, wherein: a bearing (9) is arranged between the steering device fixing seat (2) and the steering knuckle (1-7), and the bearing (9) is fixed through a shaft clamp spring (10) and a hole clamp spring (8).

9. The steering structure for the cab of the mining dump truck as claimed in claim 1, wherein: the two ends of the steering gear fixing seat (2) are fixed with the lower steering column fixing support (4), the cover plate (7) and the steering gear (3) through bolts (12) and gaskets (14), rubber base plates (5) are arranged between the lower steering column fixing support (4), the cover plate (7) and the steering gear fixing seat (2), and rubber sleeves (6) are further arranged at the joints of the bolts (12).

Technical Field

The invention relates to the technical field of dump trucks, in particular to a steering structure for a cab of a mining dump truck.

Background

At present, the mining dump truck adopts hydraulic steering, a steering signal is sent by a steering wheel and is transmitted into a steering gear through a steering column, a universal joint and a connecting spline shaft, and the steering gear is connected with a steering oil cylinder through a hydraulic oil pipe to drive the hydraulic oil cylinder to perform steering operation. The existing steering structure generally requires that a steering gear and a steering column center plane are installed in a superposed mode, so that the dislocation of center axes of the steering gear and the steering column is small, the conversion angle of a universal joint is small, and the transmission of steering signals is stable.

The arrangement of the elements is particularly important when the cab space is small. If the steering column and the steering gear can be free from the constraint of the installation central plane, the utilization of the cab space is greatly improved. However, how to ensure stable transmission of the steering signal becomes a major problem, and a common steering signal transmission structure such as a universal joint cannot stably transmit the steering signal when the misalignment between the central axes of the steering gear and the steering column is large, so a steering column assembly and a corresponding fixing structure suitable for the occasion need to be developed.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a steering structure for a cab of a mining dump truck, which has a simple structure and a good effect.

The invention is realized by the following technical scheme: the utility model provides a mining dump truck driver's cabin is with turning to structure, includes the steering column assembly, the steering column assembly passes through fixed bearing on the steering column and steering column fixing support down to be fixed in the driver's cabin, the steering column assembly includes the steering wheel, the steering wheel below is equipped with combination switch and adjusts the handle, the steering wheel is connected with the knuckle through scalable steering column, the knuckle is connected with the steering gear of setting outside the driver's cabin, fixed bearing is connected with the steering gear fixing base under the steering column, the knuckle sets up in the steering gear fixing base, the one end that the steering gear fixing base is close to fixed bearing under the steering column is equipped with the apron.

It further comprises the following steps: the upper steering column fixing support and the lower steering column fixing support are respectively arranged on a front cross beam and a bottom plate of a cab, the upper steering column fixing support comprises a support plate formed by bending, cutting and blanking and reinforcing ribs arranged on two sides of the support plate, and 4 long round holes used for fixing a steering column assembly are formed in the upper steering column fixing support.

The steering column lower fixing support comprises a channel steel I, a channel steel II, a channel steel III, a channel steel IV, a cylinder, a flange plate, a rib plate and a bending plate, wherein the flange plate is arranged in the cylinder, a through hole for mounting a steering column assembly is formed in the flange plate, and a mounting hole for mounting a brake pedal is formed in the rib plate.

The combination switch is provided with a telescopic rubber sleeve.

Be equipped with the steering column support between steering wheel and the steering column, the steering column support includes connecting block and lower connecting block, it links together with the steering wheel to go up the connecting block, the connecting block sets up on the steering column fixing support through 4 slotted holes down, it is articulated through the round pin axle with lower connecting block to go up the connecting block, the adjustment handle passes through stud and links together with last connecting block and lower connecting block, upward be equipped with on the connecting block with stud complex screw hole, be equipped with the arc slotted hole that supplies the stud activity down on the connecting block, be connected through the square hole between stud and the adjustment handle.

The steering column includes with pole I, pole II and pole III, pole I links together through the universal joint with pole II, pole II and pole III pass through splined connection, II middle parts of pole are the inside splined hole that is equipped with of quill shaft, pole III is the external spline axle, the one end that pole III set up at pole II is equipped with spacing boss.

One end of the steering knuckle is connected with the steering rod through a universal joint, and the other end of the steering knuckle is connected with the steering gear through a spline.

And a bearing is arranged between the steering gear fixing seat and the steering knuckle and is fixed by a clamp spring for a shaft and a clamp spring for a hole.

The two ends of the steering gear fixing seat are fixed with a lower steering column fixing support, a cover plate and a steering gear through bolts and gaskets respectively, rubber base plates are arranged between the lower steering column fixing support and the cover plate as well as between the lower steering column fixing support and the steering gear fixing seat, and rubber sleeves are further arranged at the joints of the bolts.

The invention has the following advantages: according to the steering structure for the cab of the mining dump truck, the steering column and the steering gear center plane are arranged in a staggered mode, the steering signal is stably transmitted, the steering gear is directly connected with the steering column, a universal joint column and a connecting rod in the prior art are omitted, and space is saved; the steering gear is fixed outside the cab, and the requirement of isolating the steering gear from a driver is met; the steering knuckle is restrained by the bearing, the axial positioning is accurate, and the rotating signal of the steering knuckle is stably transmitted to the steering gear; the driver can adjust the height of the steering column in the vertical direction and adjust the angle in the front-back direction, and can conveniently control the combined lamp and the windscreen wiper, the design is humanized, and the use is convenient; the upper and lower fixed supports are simple and reliable in structure and convenient to disassemble and assemble.

Drawings

FIGS. 1 and 2 are schematic views of the overall structure of the present invention;

FIG. 3 is a schematic structural view of a steering column assembly of the present invention;

FIG. 4 is an enlarged schematic view taken at I in FIG. 3;

FIG. 5 is an exploded view of the steering column assembly of the present invention;

FIG. 6 is a schematic view of the steering column configuration of the present invention;

FIG. 7 is an enlarged schematic view at III in FIG. 6;

FIG. 8 is a schematic view of the stud construction of the present invention;

FIG. 9 is a schematic view of the steering column of the present invention attached to a lower stationary bracket;

FIG. 10 is an exploded view of the steering column of the present invention attached to a lower fixed bracket;

FIG. 11 is an enlarged schematic view taken at II in FIG. 10;

FIGS. 12 and 13 are schematic views showing the structure of the fixing bracket of the steering column according to the present invention;

FIG. 14 is a schematic view of the construction of the lower fixing bracket of the steering column according to the present invention;

in the figure: 1. the steering column assembly comprises, by weight, 1-1 part of a steering wheel, 1-2 parts of a combined switch, 1-3 parts of an adjusting handle, 1-4 parts of a steering column support, 1-4-1 parts of a lower connecting block, 1-4-2 parts of an upper connecting block, 1-5 parts of a pin shaft, 1-6 parts of a steering rod, 1-6-1 parts of a rod I, 1-6-2 parts of a rod II, 1-6-3 parts of a rod III, 1-7 parts of a steering knuckle, 101 parts of a steering column upper fixing support, 101-1 parts of a support plate, 101-2 parts of a reinforcing rib, 2 parts of a steering device fixing seat, 3 parts of a steering device, 4 parts of a steering column lower fixing support, 4-1 parts of a channel steel I, 4-2 parts of a cylinder, 4-3 parts of a flange plate, 4-4 parts of a channel steel II, 4-5 parts of a rib plate, 4-6 parts of a steering device fixing seat, 4 parts of a steering device, and a steering device, The device comprises a bending plate, 4-7 parts of channel steel III, 4-8 parts of channel steel IV, 5 parts of rubber base plates, 6 parts of rubber sleeves, 7 parts of cover plates, 8 parts of hole clamp springs, 9 parts of bearings, 10 parts of shaft clamp springs, 12 parts of bolts, 14 parts of gaskets, 15 parts of splines, 16 parts of bosses, 17 parts of clamp spring grooves. 18. A stud bolt.

Detailed Description

The steering structure for the cab of the mining dump truck shown in fig. 1 to 14 comprises a steering column assembly 1, the steering column assembly 1 is fixed in a cab through an upper steering column fixed support 101 and a lower steering column fixed support 4, the steering column assembly 1 comprises a steering wheel 1-1, a combination switch 1-2 and an adjusting handle 1-3 are arranged below the steering wheel 1-1, the steering wheel 1-1 is connected with a steering knuckle 1-7 through a telescopic steering rod 1-6, the steering knuckles 1 to 7 are connected with a steering gear 3 arranged outside a cab, the steering column lower fixed support 4 is connected with a steering gear fixed seat 2, the steering knuckles 1-7 are arranged in the steering gear fixing seat 2, and a cover plate 7 is arranged at one end of the steering gear fixing seat 2 close to the lower steering column fixing support 4. The steering column upper fixing support 101 and the steering column lower fixing support 4 are respectively arranged on a front cross beam and a bottom plate of the cab. In the steering structure for the cab of the mining dump truck, the steering column assembly is fixed with the front cross beam of the cab through the upper fixed support, the steering column part from the upper fixed support to the steering wheel is an adjustable steering column, the structure of the steering column assembly is adjustable, and a driver can adjust the height and the angle of the steering column according to the requirement of the driver; the steering column assembly fixes the rest steering column part through the lower fixed support, the steering column of the part mainly has the function of transmitting a steering signal out of the cab to the steering gear, and the steering gear is fixed outside the cab to meet the requirement of isolating the steering gear from a driver; the steering gear is directly fixed with the steering column, so that a universal joint column and a connecting rod in the prior art are omitted, and the space is saved; a combined switch is arranged close to the steering wheel, the switch can control the whole vehicle light and the wiper, and a driver can control the combined light and the wiper at any time when mastering the steering wheel; when the height of the steering column is adjusted, the combined switch with the rubber sleeve can stretch along with the adjustment of the steering column, so that the appearance is improved; the adjusting handle is L-shaped, so that the hand can hold the adjusting handle conveniently; the mounting hole on the mounting seat is designed into a long round hole, so that the mounting is convenient; the steering gear fixing seat adopts a design of a reducing inner wall and a flange, the structure is reliable, and the outer wall adopts a conical surface design, so that the structural strength is improved; the fixing hole on the cover plate is designed into a threaded hole, so that the cover plate is convenient to disassemble and assemble.

As shown in fig. 1 to 14, the steering structure for the cab of the mining dump truck comprises a steering column upper fixing support 101 and a steering column lower fixing support, wherein the steering column upper fixing support 101 comprises a support plate 101-1 formed by bending, cutting and blanking and reinforcing ribs 101-2 arranged on two sides of the support plate, and 4 long round holes for fixing a steering column assembly 1 are formed in the steering column upper fixing support 101. The upper fixed support of the steering column comprises a support plate which is formed by bending, cutting and blanking, reinforcing ribs are arranged on two sides of the support plate and are integrally fixed on a front beam of a cab, the support plate is formed by blanking a steel plate with the yield strength of 355Mpa and is provided with 5 holes, wherein 4 long round holes on the periphery are used for fixing the steering column, and a round hole in the middle is used for penetrating out of the steering column to the other side of the support; the reinforcing ribs are symmetrically arranged on two sides of the support plate, and the lower part of the support plate is designed into an arc shape. The support plate of the fixed support on the steering column is integrally bent and formed, so that the structural reliability is effectively improved; the reinforcing ribs have higher strength and height, stress concentration is effectively reduced by the design of the arc edges, and a box-type supporting structure is formed by symmetrical welding, so that a structural supporting effect is better played; the mounting hole of the support plate is designed into a long round hole, so that the steering column is convenient to disassemble and assemble.

As shown in fig. 1 to 14, the steering structure for the cab of the mining dump truck comprises a lower steering column fixing support 4, wherein the lower steering column fixing support comprises a channel steel I4-1, a channel steel II 4-4, a channel steel III 4-7, a channel steel IV 4-8, a cylinder 4-2, a flange plate 4-3, a rib plate 4-5 and a bending plate 4-6, the flange plate 4-3 is arranged in the cylinder 4-2, a through hole for mounting the steering column assembly 1 is formed in the flange plate 4-3, and a mounting hole for mounting a brake pedal is formed in the rib plate 4-5. The lower steering column fixing support comprises four channel steel I4-1, channel steel II 4-4, channel steel III 4-7, channel steel IV 4-8, a cylinder 4-2, a flange plate 4-3, a rib plate 4-5 and a bending plate 4-6 which are formed by cutting and blanking, wherein the channel steel 4-1 and the channel steel 4-4 are distributed on the upper side and the lower side of the cylinder, and the cylinder is fixed on a front beam of a cab framework and a cab bottom plate through connectors 4-5, 4-6 and 4-8; the channel steel is made of medium-strength steel with yield strength of 355MPa through blanking; the flange plate is arranged on the inner side of the cylinder and is provided with five unthreaded holes for fixing the steering column, four unthreaded holes are uniformly distributed along the circumference, the steering column penetrates out of the cab through a hole in the middle of the flange plate, and the tail end of the steering column is connected with the steering gear through a spline; the gusset is the shaping of high-strength steel board unloading, and the design has four holes and uses installation brake pedal, and 1 unthreaded hole and 3 mounting holes wherein are used for installing brake pedal, and the mounting hole is the screw hole. The whole lower steering column fixing support is mainly provided with channel steel as a support, and the structure is stable and reliable; the opening directions of the channel steels are consistent, so that the deformation in the X direction is effectively prevented, and the channel steels are arranged along the Y direction, so that the stress area is effectively increased, and the deformation in the Y direction is prevented; the steering knuckle penetrates out of the cab through a center hole in the flange plate and is fixed through four holes in the periphery, so that the structure is stable; the brake pedal effectively improves the space utilization rate, meets the ergonomic design, and the mounting hole is designed into a threaded hole, so that the brake pedal is convenient to disassemble and assemble. The lower fixing support is of a multi-groove steel structure, the opening of the channel steel faces towards the inner side of the cab, and a heat insulation layer can be arranged on the inner side of the channel steel, so that the comfort level of the cab is improved.

As shown in fig. 1 to 14, the combination switch 1-2 is provided with a retractable rubber sleeve. The combined switch is provided with the rubber sleeve, the other end of the combined switch is clamped on the steering wheel, the combined switch can correspondingly extend or shorten along with the height of the steering wheel when the height of the steering wheel is adjusted, the steering wheel and the combined switch are sequentially assembled on the steering rod, and the steering rod is provided with the key groove for positioning the steering wheel and the combined switch.

As shown in fig. 1 to 14, a steering column support 1-4 is arranged between a steering wheel 1-1 and a steering rod 1-6, the steering column support 1-4 comprises an upper connecting block 1-4-2 and a lower connecting block 1-4-1, the upper connecting block 1-4-2 is connected with the steering wheel 1-1, the lower connecting block 1-4-1 is arranged on a steering column upper fixing support 101 through 4 long circular holes, the upper connecting block 1-4-2 is hinged with the lower connecting block 1-4-1 through a pin 1-5, an adjusting handle 1-3 is connected with the upper connecting block 1-4-2 and the lower connecting block 1-4-1 through a stud 18, the upper connecting block 1-4-2 is provided with a threaded hole matched with the stud bolt 18, the lower connecting block 1-4-1 is provided with an arc-shaped long round hole for the stud bolt 18 to move, and the stud bolt 18 is connected with the adjusting handle 1-3 through a square hole. The steering column support is divided into an upper connecting block and a lower connecting block, the upper connecting block is welded with the upper end of a steering rod and is of a groove-shaped structure, three holes are formed in the upper connecting block and the upper end of the steering rod, two holes in the lower part of the steering column support are aligned with two holes in the lower part of the lower connecting block, and a pin shaft penetrates through the holes from two sides and then is fixed through a clamp spring; the hole at the upper part is a threaded hole, the threaded hole is screwed by a stud bolt for fixation after being aligned with the long circular hole of the lower connecting block, after the end face of a circular flange of the stud bolt tightly presses the support, the adjusting handle is assembled with a square boss of the stud bolt through a square hole at the other side, and then the adjusting handle is fixed by a gasket nut, during adjustment, the adjusting handle is pulled to one side of a steering wheel to enable an upper connecting block and a lower connecting block of the steering column support to be loosened and to rotate around a pin shaft 1-5, the upper part of a steering rod is driven by the upper connecting block to adjust the front and back angle around a hinge point, the stud bolt moves in the long circular hole under the driving of the upper connecting block, and after the adjustment is finished, the adjusting handle is rotated downwards to enable the steering column to be fixed by the bolt; the steering column support is characterized in that a steering rod, an adjusting handle and a pin shaft are arranged on a steering column support, the steering rod is enabled to rotate around the pin shaft and be locked by wrestling the adjusting handle, a steering column is connected with an upper fixed support by the steering column support, the adjusting handle, the steering rod and the pin shaft are fixedly connected, mounting holes of the steering column support are long round holes, the number of the long round holes is 4, and 1 round hole is arranged on the support and used for penetrating the steering rod to the other side of the support.

As shown in fig. 1 to 14, the steering structure for the cab of the mining dump truck comprises a steering rod 1-6-1, a rod ii 1-6-2 and a rod iii 1-6-3, wherein the rod i 1-6-1 and the rod ii 1-6-2 are connected together through a universal joint, the rod ii 1-6-2 and the rod iii 1-6-3 are connected through a spline, a spline hole is formed in the hollow shaft in the middle of the rod ii 1-6-2, the rod iii 1-6-3 is an external spline shaft, and a limit boss is arranged at one end of the rod ii 1-6-2, where the rod iii 1-6-3 is arranged. The steering rod comprises three parts, namely a rod I, a rod II and a rod III, wherein the rod I is welded with an upper connecting block of a steering column support 1-4, the rod I is hinged with the rod II through a universal joint, the middle part of the rod II is of a hollow shaft structure and is provided with an inner spline hole, the rod III is of an outer spline shaft structure, one end of the rod III is arranged in the spline hole of the rod II and is provided with a boss, the boss is matched with the plane of the tail end of a key groove of the rod II to achieve a limiting effect, the rod III is prevented from extending too much and being pulled out from the tail end of the rod II, and the other end of the rod III is hinged with the steering joint through the universal joint end.

As shown in fig. 1 to 14, one end of each steering knuckle 1-7 is connected with a steering rod 1-6 through a universal joint, and the other end of each steering knuckle 1-7 is connected with a steering gear 3 through a spline 15. One end of the steering knuckle is a universal joint end which is connected with a steering rod, and the other end of the steering knuckle is a spline which is matched with a spline groove of a steering gear to transmit a steering signal. The steering knuckle splines are uniformly arranged along the circumference, a clamp spring groove 17 and a boss 16 are designed behind the splines, and the steering knuckle is fixed in place by matching with elements such as a clamp spring, a bearing and the like.

As shown in fig. 1 to 14, a bearing 9 is arranged between the steering gear fixing seat 2 and the steering knuckle 1-7, and the bearing 9 is fixed by a shaft clamp spring 10 and a hole clamp spring 8. The bearing is arranged between the clamp spring for the shaft and the clamp spring for the hole, is assembled on a steering knuckle, and is fixed through the two clamp springs; the shaft is arranged in a clamp spring groove behind the spline by a clamp spring; the hole clamp spring is arranged on the inner side of the steering gear fixing seat; a clamp spring groove is formed in the inner side of the steering gear fixing seat, and holes are formed in the clamp spring groove through clamp springs; the steering knuckle is fixed by the bearing and the clamp spring, so that the steering knuckle is convenient to maintain, low in cost and accurate in axial positioning, a rotation signal of the steering knuckle is stably transmitted to the steering gear, and the steering signal is stably transmitted under the condition that the steering column and the center plane of the steering gear are staggered.

As shown in fig. 1 to 14, two ends of a steering gear fixing seat 2 are respectively fixed to a steering column lower fixing support 4, a cover plate 7 and a steering gear 3 through bolts 12 and gaskets 14, rubber tie plates 5 are arranged between the steering column lower fixing support 4, the cover plate 7 and the steering gear fixing seat 2, and a rubber sleeve 6 is further arranged at a joint of the bolts 12. The steering gear fixing seat and the steering gear are fixed through a bolt and a gasket, the steering gear fixing seat, the rubber base plate, the lower steering column fixing support, the rubber gasket and the cover plate are sequentially connected, the bolt penetrates through a corresponding hole of the steering gear fixing seat after penetrating through the gasket, penetrates through a rubber sleeve, sequentially penetrates through the rubber base plate and the corresponding hole of the lower steering column fixing support and then is screwed to a threaded hole in the cover plate, and fixing is completed; the two ends of the steering gear fixing seat are of flange plate type structures, four mounting holes are respectively designed for fixing the steering gear and the steering gear fixing seat, and the mounting holes are uniformly distributed along the circumference and are unthreaded; the rubber base plates are arranged on two sides of a flange plate of a lower fixed support of the steering column, five holes are designed, a central hole is used for penetrating out of the steering column, four holes are uniformly arranged along the circumference of the periphery, light holes are formed, the rubber sleeve is arranged between the cover plate and the steering gear fixing seat and is arranged in the rubber base plates and the fixed holes of the lower fixed support of the steering column, the rubber base plates and the rubber sleeve are tightly pressed on the end surfaces through bolt gaskets, and the arrangement of the rubber base plates and the rubber sleeve plays a role in sound insulation and shock absorption; the cover plate is provided with five holes, the middle hole is used for penetrating out of the steering column, and four threaded holes in the periphery are uniformly distributed along the circumference and used for assembling bolts.