CN218640923U

CN218640923U - Vibration isolation mechanism of steering system

Info

Publication number: CN218640923U
Application number: CN202222693345.2U
Authority: CN
Inventors: 赵立彪; 唐旭
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-03-17
Anticipated expiration: 2032-10-13

Abstract

The utility model discloses a steering system vibration isolation mechanism, it belongs to and turns to vibration isolation mechanism, through the transmission route of two bumper shock absorber separation engine during operation hydraulic steering ware vibration excitation, thoroughly solves the problem that turns to aircraft bonnet abnormal sound from cutting off vibration source propagation path. It mainly includes the rack, installs the steering column support on the rack, and the steering column is installed on the steering column support, and the steering gear passes through stay bolt II with the steering column to be connected, be equipped with down vibration isolation mechanism between steering column lower extreme and the steering column support, lower vibration isolation mechanism includes bumper shock absorber III and bumper shock absorber IV, and steering column support one end is equipped with bumper shock absorber III, and the steering column support other end is equipped with bumper shock absorber IV, and bumper shock absorber III, the steering column support, bumper shock absorber IV and the steering column pass through fastener II to be connected, and II end-to-end connections steering gear of fastener, steering column pass bumper shock absorber III and bumper shock absorber IV. The utility model discloses mainly used loader a steering system vibration isolation.

Description

Vibration isolation mechanism of steering system

Technical Field

The utility model relates to a vibration isolation mechanism, specifically speaking especially relates to a steering system vibration isolation mechanism.

Background

In the prior art, when the rotating speed of an engine reaches a certain value due to the connection mode of the upper end and the lower end of a steering column of a steering system and a steering column support, vibration excitation generated by a steering gear is transmitted to the steering column, the vibration excitation of the steering column is transmitted to the steering column support, the vibration excitation of the steering column support is transmitted to a steering hood, resonance abnormal sound of the steering hood is caused, harsh sound is generated, the driving feeling of a driver is influenced, the comfort of the whole driver for driving is reduced, and the damping effect is poor.

Disclosure of Invention

The utility model aims at providing a steering system vibration isolation mechanism, transmission route through two bumper shock absorber separation engine during operation hydraulic steering ware vibration excitations thoroughly solves the problem that turns to the aircraft bonnet abnormal sound on cutting off vibration source propagation way.

The utility model discloses a realize through following technical scheme:

the utility model provides a steering system vibration isolation mechanism, includes the rack, installs the steering column support on the rack, and the steering column is installed on the steering column support, and the steering gear passes through stay bolt II with the steering column to be connected, be equipped with down vibration isolation mechanism between steering column lower extreme and the steering column support, lower vibration isolation mechanism includes bumper shock absorber III and bumper shock absorber IV, and steering column support one end is equipped with bumper shock absorber III, and the steering column support other end is equipped with bumper shock absorber IV, and bumper shock absorber III, steering column support, bumper shock absorber IV and steering column pass through fastener II to be connected, and II end of fastener still connect the steering gear, and the steering column passes bumper shock absorber III and bumper shock absorber IV.

Further, still be equipped with vibration isolation mechanism between steering column upper end and the steering column support, go up vibration isolation mechanism and include fixed block and bumper shock absorber group, the fixed block is annular staple bolt fixed block, two fixed blocks press from both sides tight steering column, be equipped with the bumper shock absorber group between steering column support and one of them fixed block side, still be equipped with adjusting shim between bumper shock absorber group and the fixed block, bumper shock absorber group, steering column support, adjusting shim and two fixed blocks pass through fastener I and fix.

Furthermore, fastener I include bolt I, packing ring II and nut, I one end of bolt passes packing ring III, bumper shock absorber group, steering column support, adjusting shim and two fixed blocks, I other end of bolt is fixed through packing ring II, nut locking, is equipped with the spacer sleeve between I and the bumper shock absorber group of bolt.

Further, the bumper shock absorber group include bumper shock absorber I and bumper shock absorber II, bumper shock absorber I and bumper shock absorber II are the cylindricality bumper shock absorber, are equipped with the ring channel on the cylindricality bumper shock absorber, steering column support mounting is equipped with the through-hole in the middle of bumper shock absorber I and bumper shock absorber II in the ring channel, fastener I passes the through-hole.

Furthermore, the shock absorber I, the shock absorber II, the shock absorber III and the shock absorber IV are made of rubber.

Furthermore, a gasket is further arranged on the shock absorber III, and the gasket, the shock absorber III, the steering column support, the shock absorber IV and the steering column are connected through a fastener II.

Furthermore, the fastener II comprises a bolt II and a washer I, the bolt II penetrates through the washer I and then sequentially penetrates through the gasket, the shock absorber III, the steering column support and the shock absorber IV, and finally the steering column and the steering gear are in threaded connection.

Furthermore, the shock absorber III and the shock absorber IV are provided with bosses, pits are respectively arranged between the bosses and the shock absorber III and the shock absorber IV body, boss through holes are formed in the bosses, the fasteners II can penetrate through the boss through holes, and the bosses are prevented from being torn by the pits during assembly.

Furthermore, a vulcanized steel sleeve is arranged in the boss through hole, the vulcanized steel sleeve can increase and decrease the reliability of the shock absorber III and the shock absorber IV, and the vulcanized steel sleeve is made of Q235B.

Furthermore, a steering hood is further arranged on the steering column support and is mounted on the steering column support through screws.

Compared with the prior art, the beneficial effects of the utility model are that:

the upper end and the lower end of the steering column are connected with the steering column support through two shock absorbers, so that the influence of the vibration excitation of the steering column on the steering column support is fundamentally isolated, and the abnormal sound of the steering hood caused by the vibration excitation of the steering column is eliminated.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic structural view of the lower vibration isolating mechanism of the present invention;

fig. 3 is a schematic structural view of the upper vibration isolating mechanism of the present invention;

FIG. 4 is a schematic structural view of a shock absorber I and a shock absorber II of the present invention;

FIG. 5 is a schematic structural diagram of a damper III and a damper IV of the present invention;

fig. 6 is a sectional view of a damper iii and a damper iv according to the present invention;

fig. 7 is a view at a of the present invention;

fig. 8 is a schematic structural view of the steering hood of the present invention;

in the figure: 1. a steering column; 2. a steering column bracket; 3. a fixed block; 401. a shock absorber I; 402. a shock absorber II; 5. a bolt I; 6. a bolt II; 7. a gasket I; 8. a gasket; 901. a shock absorber III; 902. a shock absorber IV; 10. a pit; 11. a rack; 12. a diverter; 13. a steering hood; 14. a screw; 15. vulcanizing the steel sleeve; 16. a spacer sleeve; 17. adjusting the gasket; 18. a gasket II; 19. a nut; 20. a boss; 21. and a gasket III.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, embodiment 1 discloses a steering system vibration isolation mechanism, which includes a rack 11, a steering column support 2 is installed on the rack 11, a steering column 1 is installed on the steering column support 2, a steering gear 12 is connected with the steering column 1 through a long bolt ii 6, a lower vibration isolation mechanism is arranged between the lower end of the steering column 1 and the steering column support 2, as shown in fig. 2, the lower vibration isolation mechanism includes a shock absorber iii 901 and a shock absorber iv 902, one end of the steering column support 2 is provided with the shock absorber iii 901, the other end of the steering column support 2 is provided with the shock absorber iv 902, the shock absorber iii 901, the steering column support 2, the shock absorber iv 902 and the steering column 1 are connected through a fastener ii, the tail end of the fastener ii is further connected with the steering gear 12, and the steering column 1 passes through a hollow portion between the shock absorber iii and the shock absorber iv 902.

Embodiment 2, a steering system vibration isolation mechanism, as shown in fig. 3, the upper vibration isolation mechanism is further provided between the upper end of a steering column 1 and a steering column support 2, the upper vibration isolation mechanism includes a fixed block 3 and a damper group, the fixed block 3 is an annular hoop fixed block, two fixed blocks 3 clamp the steering column 1, the damper group is provided between the steering column support 2 and one side of the fixed block 3, an adjusting gasket 17 is further provided between the damper group and the fixed block 3, and the damper group, the steering column support 2, the adjusting gasket 17 and the two fixed blocks 3 are fixed by a fastener i; the fastening piece I comprises a bolt I5, a washer II 18 and a nut 19, one end of the bolt I5 penetrates through a washer III 21, a shock absorber set, a steering column support 2, an adjusting gasket 17 and two fixing blocks 3, the other end of the bolt I5 is locked and fixed through the washer II 18 and the nut 19, and a spacer bush 16 is arranged between the bolt I5 and the shock absorber set; as shown in fig. 4, the shock absorber set comprises a shock absorber i 401 and a shock absorber ii 402, the shock absorber i 401 and the shock absorber ii 402 are cylindrical shock absorbers, annular grooves are formed in the cylindrical shock absorbers, the steering column support 2 is installed in the annular grooves, through holes are formed between the shock absorbers i 401 and the shock absorbers ii 402, and fasteners i penetrate through the through holes; the shock absorbers I401, II 402, III 901 and IV 902 are made of rubber; the shock absorber III 901 is further provided with a gasket 8, and the gasket 8, the shock absorber III 901, the steering column support 2, the shock absorber IV 902 and the steering column 1 are connected through a fastener II; the fastening piece II comprises a bolt II 6 and a gasket I7, the bolt II 6 penetrates through the gasket I7 and then sequentially penetrates through the gasket 8, the shock absorber III 901, the steering column support 2, the shock absorber IV 902 and the steering column 1, and finally the steering column 12 is in threaded connection; as shown in fig. 5, bosses 20 are arranged on the shock absorbers iii 901 and iv 902, as shown in fig. 7, recesses 10 are arranged between the bosses 20 and the bodies of the shock absorbers iii 901 and iv 902, boss through holes are arranged on the bosses 20, fasteners ii can pass through the boss through holes on the bosses 20, and the recesses 10 prevent the bosses from being torn during assembly; as shown in fig. 6, a vulcanized steel sleeve 15 is arranged in the boss through hole of the boss 20, the vulcanized steel sleeve 15 can increase the reliability of the shock absorber iii 901 and the shock absorber iv 902, and the vulcanized steel sleeve 15 is made of Q235B; as shown in fig. 8, the steering column bracket 2 is further provided with a steering cover 13, and the steering cover 13 is attached to the steering column bracket 2 by screws 14, the other points being the same as those of embodiment 1.

In a steering system, the lower end of a steering column 1 is respectively connected with a steering column bracket 2 through two rubber shock absorbers III 901 and IV 902 which have the same specification, hardness and structure and are provided with bosses 20: the vibration dampers III 901 and IV 902 are adopted to reduce the vibration displacement of the steering column 1 in different directions; bosses 20 of an upper shock absorber and a lower shock absorber are deeply arranged in round holes of an installation plate of a steering column support 2, an installation gap meeting the static rigidity requirement is designed when the shock absorbers III 901 and the shock absorbers IV 902 are assembled, rubber at the outer edge of each boss 20 is matched with the round holes of the installation plate of the steering column support 2, the transmission of a vibration source of a steering device 12 is blocked, and the steering column 1 and the steering column support 2 are changed into flexible soft connection from original rigid hard connection. A gasket 8 with the same shape as the shock absorber is arranged on the shock absorber III 901, and a gasket I7 and a bolt II 6 are arranged on the gasket 8, so that the steering gear 12 is guaranteed to be reliably connected.

In a steering system, the outer edge rubbers of a shock absorber I401 and a shock absorber II 402 at the upper end of a steering column 1 are matched with a mounting round hole of a steering column support 2, so that the transmission of a vibration source of a steering gear 12 is blocked, and the steering column 1 and the steering column support 2 are changed into flexible soft connection from original rigid hard connection.

The shock absorbers III 901 and the shock absorbers IV 902 are fixed by multiple bolts and are provided with boss heights meeting the requirement of an assembly gap and boss peripheral pits 10 for preventing the bosses from being torn during assembly; vulcanized steel sleeves 15 are embedded in the shock absorbers III 901 and the shock absorbers IV 902, so that the reliability of the shock absorbers is improved.

Claims

1. The utility model provides a steering system vibration isolation mechanism, includes rack (11), installs steering column support (2) on rack (11), and install on steering column support (2) steering column (1), and steering gear (12) are connected its characterized in that with steering column (1): be equipped with down vibration isolation mechanism between steering column (1) lower extreme and steering column support (2), lower vibration isolation mechanism includes bumper shock absorber III (901) and bumper shock absorber IV (902), and steering column support (2) one end is equipped with bumper shock absorber III (901), and the steering column support (2) other end is equipped with bumper shock absorber IV (902), and bumper shock absorber III (901), steering column support (2), bumper shock absorber IV (902) and steering column (1) are connected through fastener II.

2. The steering system vibration isolation mechanism according to claim 1, wherein: steering column (1) upper end and steering column support (2) between still be equipped with vibration isolation mechanism, go up vibration isolation mechanism and include fixed block (3) and bumper shock absorber group, fixed block (3) are annular staple bolt fixed block, two fixed block (3) press from both sides tight steering column (1), be equipped with the bumper shock absorber group between steering column support (2) and fixed block (3), still be equipped with adjusting shim (17) between bumper shock absorber group and fixed block (3), the bumper shock absorber group, steering column support (2), adjusting shim (17) and two fixed block (3) are fixed through fastener I.

3. The steering system vibration isolating mechanism according to claim 2, wherein: fastener I include bolt I (5), packing ring II (18) and nut (19), packing ring III (21), bumper shock absorber group, steering column support (2), adjusting shim (17) and two fixed blocks (3) are passed to bolt I (5) one end, the bolt I (5) other end is passed through packing ring II (18), nut (19) locking and is fixed, be equipped with spacer sleeve (16) between bolt I (5) and the bumper shock absorber group.

4. The steering system vibration isolating mechanism according to claim 2, wherein: the shock absorber group include bumper shock absorber I (401) and bumper shock absorber II (402), bumper shock absorber I (401) and bumper shock absorber II (402) are the cylindricality bumper shock absorber, are equipped with the ring channel on the cylindricality bumper shock absorber, steering column support (2) are installed in the ring channel, are equipped with the through-hole in the middle of bumper shock absorber I (401) and bumper shock absorber II (402), fastener I passes the through-hole.

5. The steering system vibration isolation mechanism according to claim 4, wherein: the shock absorber I (401), the shock absorber II (402), the shock absorber III (901) and the shock absorber IV (902) are made of rubber.

6. The steering system vibration isolation mechanism according to claim 1, wherein: the shock absorber III (901) is further provided with a gasket (8), and the gasket (8), the shock absorber III (901), the steering column support (2), the shock absorber IV (902) and the steering column (1) are connected through a fastener II.

7. The steering system vibration isolation mechanism according to claim 6, wherein: the fastener II comprises a bolt II (6) and a washer I (7).

8. The steering system vibration isolation mechanism according to claim 1, wherein: bosses are arranged on the shock absorber III (901) and the shock absorber IV (902), pits (10) are arranged between the bosses and the shock absorber I (401) and the shock absorber II (402), and boss through holes are formed in the bosses.

9. The steering system vibration isolation mechanism according to claim 8, wherein: and a vulcanized steel sleeve (15) is arranged in the boss through hole, and the vulcanized steel sleeve (15) is made of Q235B.

10. The steering system vibration isolation mechanism according to claim 1, wherein: the steering column support (2) is further provided with a steering hood (13), and the steering hood (13) is installed on the steering column support (2) through a screw (14).