CN201052787Y

CN201052787Y - Power steering gear with spring mounted on two ends of toothed bar

Info

Publication number: CN201052787Y
Application number: CNU2007200849945U
Authority: CN
Inventors: 王连科
Original assignee: Jingzhou Henglong Automotive Parts Co Ltd
Current assignee: Jingzhou Henglong Automotive Parts Co Ltd
Priority date: 2007-05-27
Filing date: 2007-05-27
Publication date: 2008-04-30
Anticipated expiration: 2017-05-27

Abstract

The utility model relates to a power steering gear, in particular to a power steering gear with springs arranged on both ends of rack, and belongs to the steering gear field. The utility model consists of springs, a rack, a stop collar, a pull rod and an oil cylinder; one end of the rack is provided with the pull rod, the stop collar is arranged on the oil cylinder, both ends of the rack are respectively produced with a rack end surface, the pull rod is produced with a pull rod end surface, the stop collar is produced with a stop collar end surface; one spring is respectively arranged between the rack end surfaces on both ends of the rack and the pull rod end surface on the pull rod. The utility model ensures that the steering gear produces partial active aligning force by adding the springs and taking advantage of the elasticity provided by the rebound of the springs, allows the alignment of the car to be changed from fully passive alignment to partial active alignment and ensures that the requirement to the side thrust of the car wheel can be decreased. The utility model solves the problem that the prior steering gear has bad alignment performance when the steering gear reaches the extreme value, has simple machining process, low cost and a structure convenient for assembly and disassembly, and is applicable to various steering gears with non-ideal alignment effect.

Description

The tooth bar two ends add the power steering of shock mount

Technical field:

The utility model relates to a kind of power steering, designs the power steering that a kind of tooth bar two ends add shock mount especially, belongs to the automobile steering device field.

Background technology:

Along with the user is more and more higher to the requirement of automobile operating characteristic, one of performance that return performance is mainly examined as automobile also inevitably needs to improve.And now returning of automobile just mainly is the tooth bar that promotes deflector by the side thrust of wheel, overcomes (as shown in Figure 1) that deflector in-to-in resistance is realized, and this mode is just belonging to fully passive time.Because the restriction of domestic automobile design level and processing technology at present, start with from the side thrust and the minimizing deflector internal drag aspect that improve wheel, the return performance that improves automobile has seemed quite difficult, particularly the phenomenon of return performance difference is more outstanding when deflector redirect to the limit, and design level and processing technology seldom have good raising in a short time.

Summary of the invention:

The purpose of this utility model is: provide a kind of employing to add shock mount at automobile steering device tooth bar two ends, make the bounce after spring is compressed when turning to by deflector, realize that the deflector part initiatively just returning, the tooth bar two ends that the return performance of automobile steering device is significantly improved add the power steering of shock mount.

The utility model is to realize above-mentioned purpose by the following technical solutions:

The power steering that these tooth bar two ends add shock mount is made of spring, tooth bar, stop collar and pull bar, pull bar is equipped with in the end of tooth bar, and stop collar is contained on the oil cylinder, it is characterized in that: the two ends of tooth bar respectively are shaped on a tooth bar end face, be shaped on the pull bar end face on the pull bar, be shaped on the stop collar end face on the stop collar; Between the tooth bar end face at tooth bar two ends and the pull bar end face on the pull bar, a spring is housed respectively.

The utility model advantage compared with prior art is:

Between tooth bar two ends and stop collar, increased spring, make automobile return timing and not only overcome deflector in-to-in resistance by the side thrust of wheel, making the Hui Zhengcong of automobile fully just become part passive time is just initiatively returning, improved the positive ability of returning of automobile steering device, the requirement of wheel side thrust is minimized.The utility model processing technology is simple, and is with low cost, is convenient to assembling and dismounting.Be specially adapted to design back the unfavorable deflector of plus effect because of car load.

Description of drawings:

Fig. 1 is the structural representation of traditional power deflector;

Fig. 2 adds the structural representation of the power steering of shock mount for the tooth bar two ends;

Fig. 3 is the spring structural representation in the raw that installs additional;

Fig. 4 is the structural representation that the spring that installs additional is in compressive state;

Fig. 5 is the structural representation that the spring that installs additional is in the resilience state.

Among the figure: 1, spring, 2, tooth bar, 3, stop collar, 4, pull bar, 5, oil cylinder, 6, the stop collar end face, 7, the tooth bar end face, 8, the pull bar end face.

The specific embodiment:

The power steering that these tooth bar two ends add shock mount is made of spring 1, tooth bar 2, stop collar 3 and pull bar 4, and pull bar 4 is equipped with in the end of tooth bar 2, and stop collar 3 is contained on the oil cylinder 5.The two ends of tooth bar 2 respectively are shaped on a tooth bar end face 7, are shaped on pull bar end face 8 on the pull bar 4, are shaped on stop collar end face 6 on the stop collar 3; One spring 1 (referring to accompanying drawing 2-3) respectively is housed between the tooth bar end face 7 at tooth bar 2 two ends and the pull bar end face 8 of pull bar 4.Spring 1 is spacing on tooth bar 2 by the pull bar end face 8 of the tooth bar end face 7 of tooth bar 2 and pull bar 4.

It is as follows that these tooth bar two ends add the working process of power steering of shock mount:

Return when now turning to the left-limit position with deflector just is that example illustrates its principle of work.

As shown in Figure 3, when deflector forwards the certain position on a left side to, stop collar end face 6 overlaps with tooth bar end face 7, spring 1 beginning of right-hand member is by pull bar end face 8 on the pull bar 4 and 6 compressions of the stop collar end face on the stop collar 3, when further left-hand rotation, spring 1 is by further compression (as shown in Figure 4), and spring 1 is compressed the back and produces bounce.When unclamping bearing circle, in the time of wheel side thrust pushing drawing rod 4, spring 1 resilience provides elastic force to make deflector produce initiatively aligning force of part, and pushing drawing rod 4 moves right the midway location of tooth bar 2, reaches back plus effect (as shown in Figure 5).

When deflector redirect to certain position to the right, principle of work was the same, and the spring 1 of left end equally also plays and helps part initiatively to return positive effect.

But the move distance that turns to the left or to the right when tooth bar 2 is not enough, and when stop collar end face 6 did not overlap with tooth bar end face 7, spring is compression not, and unclamp bearing circle this moment, and spring 1 does not have and initiatively returns plus effect.So this technology be deflector redirect to just play a part to help back when spring 1 is compressed the position positive.

Claims

1. tooth bar two ends add the power steering of shock mount, it is made of spring (1), tooth bar (2), stop collar (3), pull bar (4) and oil cylinder (5), pull bar (4) is equipped with in the end of tooth bar (2), stop collar (3) is contained on the oil cylinder (5), it is characterized in that: the two ends of tooth bar (2) respectively are shaped on a tooth bar end face (7), be shaped on pull bar end face (8) on the pull bar (4), be shaped on stop collar end face (6) on the stop collar (3); Between the tooth bar end face (7) at tooth bar (2) two ends and the pull bar end face (8) on the pull bar (4), a spring (1) is housed respectively.