CN2696966Y

CN2696966Y - Shock damper

Info

Publication number: CN2696966Y
Application number: CN 200420044276
Authority: CN
Inventors: 许荣裕
Original assignee: YUANYU MACHINERY (SHENZHEN) CO Ltd
Current assignee: YUANYU MACHINERY (SHENZHEN) CO Ltd
Priority date: 2004-04-01
Filing date: 2004-04-01
Publication date: 2005-05-04
Anticipated expiration: 2014-04-01

Abstract

The utility model relates to a shock damper for a shock-proof automobile frame of trackless terrain vehicles, comprising a front automobile frame and a rear automobile frame, and the front automobile frame and the rear automobile frame are hinged by a pivot shaft. The utility model is characterized in that a sleeve barrel device is connected between the front automobile frame and the rear automobile frame, and the sleeve barrel device at least comprises two sleeve barrels that can be clamped mutually and slide relatively. The two ends of the spring are respectively propped with the sleeve barrels on the two ends of the sleeve barrel device, and the sleeve barrels on the two ends of the sleeve barrel device are respectively hinged with the front automobile frame and the rear automobile frame. The sleeve barrel device comprises an outer sleeve barrel and an inner sleeve barrel, and the two ends of the spring are respectively propped with the outer sleeve barrel and the inner sleeve barrel. The outer sleeve barrel is hinged with the middle part of the straight rod of the front automobile frame, and the inner sleeve barrel is hinged with the end of the side rod of the rear automobile frame. The outer sleeve barrel is sheathed with a ring sleeve whose two ends are hinged in the straight rod with two bearing rods. The outer sleeve barrel is sheathed with the ring sleeve by the screw thread on the outer sleeve barrel and the inner screw thread in the ring sleeve. The utility model can improve the service life.

Description

A kind of Shock absorber

Technical field

The utility model relates to trackless terrestrial vehicle, relates in particular to a kind of Shock absorber of shock-absorbing vehicle frame.

Background technology

The Shock absorber of existing shock-absorbing vehicle frame as shown in Figure 1, comprise front vehicle frame 1 and back vehicle frame 2, front vehicle frame 1 and back vehicle frame 2 are hinged by hinge 3, simultaneously, directly be connected with spring 4 between front vehicle frame 1 and the back vehicle frame 2, for this design, in actual use, during tensile force shock-absorbing by spring 4, simultaneously, spring 4 can constantly bear because the distance at its two ends when constantly changing, the line of centers of spring 4 and the relative angle between the Shock absorber also constantly change, like this, spring 4 will constantly bear distortion power, and this long-term distortion action makes spring 4 fatigues easily, shorten its life-span, spring 4 has reduced Shock absorber thereby meaning, i.e. the service life of shock-absorbing vehicle frame as a vitals of Shock absorber.

Summary of the invention

The purpose of this utility model is to provide a kind of Shock absorber, to solve the defective that lack service life in the prior art.

The technical scheme that the utility model adopted is: this Shock absorber, comprise front vehicle frame and back vehicle frame, front vehicle frame and back vehicle frame are hinged by hinge, it is characterized in that: be connected with a sleeve arrangement between front vehicle frame and the back vehicle frame, but sleeve arrangement comprises the two joints sleeve of cutting ferrule and slide relative mutually at least, the two ends of spring offset with the sleeve at sleeve arrangement two ends respectively, and the sleeve at sleeve arrangement two ends is hinged with front vehicle frame, back vehicle frame respectively;

Described sleeve arrangement comprises outer sleeve and inner sleeve, and the two ends of spring offset with outer sleeve, inner sleeve respectively, and the straight-bar middle part of described outer sleeve and front vehicle frame is hinged, and described inner sleeve is hinged with the side lever end of back vehicle frame;

Be with ring set on the described outer sleeve, described ring set two ends are hinged in the straight-bar with two poles;

Described outer sleeve and ring set are nested by screw thread on the outer sleeve and the negative thread in the ring set;

Described ring set two ends have axis hole, and the pole in the described straight-bar is offered respective through hole, and bearing is housed in the through hole;

Pass through screw thread cutting ferrule clamp nut on the described outer sleeve;

The outer end of described outer sleeve interlocks with bottom mutually by negative thread, and bottom is replaced in the end of spring;

A C type ring is established in the described bottom outside also card;

Described inner sleeve outer end is provided with axis hole, is hinged by axis hole and side lever end;

Install sliding sleeve between described outer sleeve and the inner sleeve, described sliding sleeve inner ring surface cutting ferrule inner sleeve, the negative thread bolt of sliding sleeve outer ring surface and outer sleeve.

The utility model beneficial effect is: in the utility model, but sleeve arrangement comprises the two joints sleeve of cutting ferrule and slide relative mutually at least, the two ends of spring offset with the sleeve at sleeve arrangement two ends respectively, the sleeve at sleeve arrangement two ends respectively with front vehicle frame, back vehicle frame is hinged, spring is installed in the sleeve arrangement, like this, in actual use, during tensile force shock-absorbing by spring, when the distance of both ends of the spring constantly changes, though the line of centers of spring and the relative angle between the Shock absorber also constantly change, but because spring is not direct and front vehicle frame, back vehicle frame links to each other, and this angle is by the sleeve at sleeve arrangement two ends and front vehicle frame, the pin jointed end of back vehicle frame is regulated, like this, spring can not bear distortion power, and spring places in the sleeve arrangement, can reduce rustization, corrosion, just improve the service life of spring greatly, promptly increased service life of the present utility model; Be with ring set on the outer sleeve, the ring set two ends are hinged and have in front vehicle frame in the straight-bar of two poles, outer sleeve and ring set are nested by screw thread on the outer sleeve and the negative thread in the ring set, like this, can pass through threaded adjusting ring set residing position on outer sleeve, regulate the connection angle of front vehicle frame and back vehicle frame, this connection angle can influence seat cushion, seat appearance, thereby obtain best running condition, cutting ferrule clamp nut on the outer sleeve, press ring set by clamp nut, can make ring set further fixing, improve working stability of the present utility model; The outer end of outer sleeve interlocks with bottom mutually by negative thread, bottom is replaced in the end of spring, in actual use, by adjustable diameter and screw adjusting to bottom, adjust the operation pressure of spring, make the utility model can because of the people or because of vehicle condition different, as, people for different weight, the operation pressure of adjusting spring obtains best shock-absorbing elastic force, and and for example, spring is after using the sufficiently long time, can lose part elastic force, regulate the distance of bottom minimizing both ends of the spring, can improve the elastic force of spring, also card is established a C type ring in the bottom outside, can be further fixing to bottom, improve working stability of the present utility model; Install sliding sleeve between outer sleeve and the inner sleeve, sliding sleeve inner ring surface cutting ferrule inner sleeve, the negative thread bolt of sliding sleeve outer ring surface and outer sleeve, can increase the sliding contact surface of inner sleeve by sliding sleeve, make the slide relative between the sleeve in the sleeve arrangement more steady, and, after long-time slide relative between the sleeve in the sleeve arrangement produces too much wearing and tearing, only need to change sliding sleeve, then can do the actv. compensation, easy to maintenance.

Description of drawings

Fig. 1 is a prior art overall structure scheme drawing;

Fig. 2 is the utility model overall structure scheme drawing;

Fig. 3 is the utility model middle sleeve device inner structure scheme drawing;

Fig. 4 is the utility model middle ring sleeve structural representation;

Fig. 5 is the view of the utility model middle ring sleeve cutting ferrule on the sleeve arrangement outer sleeve;

Fig. 6 is a straight-bar structural representation in the utility model.

The specific embodiment

With embodiment the utility model is described in further detail with reference to the accompanying drawings below:

According to Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, as shown in Figure 2, the utility model comprises front vehicle frame 1 and back vehicle frame 2, front vehicle frame 1 and back vehicle frame 2 are hinged by hinge 3, be connected with a sleeve arrangement 5 between front vehicle frame 1 and the back vehicle frame 2, as shown in Figure 3, this sleeve arrangement 5 comprises outer sleeve 51 and inner sleeve 52, but outer sleeve 51 and inner sleeve 52 mutual cutting ferrule and slide relative, the two ends of spring 4 offset with outer sleeve 51, inner sleeve 52 respectively, outer sleeve 51 is hinged with straight-bar 11 middle parts of front vehicle frame 1, and inner sleeve 52 is hinged with side lever 21 ends of back vehicle frame 2.

As Fig. 3, Fig. 4 and shown in Figure 5, be with ring set 61 on the outer sleeve 51, outer sleeve 51 is nested by the negative thread 611 in screw thread on the outer sleeve 51 511 and the ring set 61 with ring set 61.

As shown in Figure 4, ring set 61 two ends have axis hole 612, as shown in Figure 6, pole in the straight-bar 11 is offered respective through hole, and bearing 111 is housed in the through hole, axostylus axostyle can be installed pass bearing 111 and direct reach axis hole 612, like this, ring set 61 two ends are hinged in the straight-bar 11 with two poles, as shown in Figure 5, pass through screw thread 511 cutting ferrule clamp nuts 56 on the outer sleeve 51.

As shown in Figure 3, the outer end of outer sleeve 51 interlocks with bottom 54 mutually by negative thread 541, and bottom 54 is replaced in the end of spring 4, and bottom 54 outsides are also blocked and established a C type ring 55.

As Fig. 3 and shown in Figure 5, inner sleeve 52 outer ends are provided with axis hole 521, and inner sleeve 52 is hinged by axis hole 521 and side lever 21 ends.

As shown in Figure 3, installing sliding sleeve 53 between outer sleeve 51 and the inner sleeve 52, sliding sleeve 53 inner ring surface cutting ferrule inner sleeves 52, negative thread 531 bolts of sliding sleeve 53 outer ring surfaces and outer sleeve 51.

In use, can pass through threaded adjusting ring set 61 residing position on outer sleeve 51, regulate the connection angle of front vehicle frame 1 and back vehicle frame 2, obtain best running condition, cutting ferrule clamp nut 56 on the outer sleeve 51 presses ring set 61 by clamp nut 56, makes ring set 61 further fixing; By adjustable diameter and screw adjusting to bottom 54, adjust the operation pressure of spring 4, such as, for the people of different weight, the operation pressure of adjusting spring 4 obtains best shock-absorbing elastic force, again for example, spring 4 can be lost part elastic force after using the sufficiently long time, regulate bottom 54 inside precessions and reduce the distance at spring 4 two ends, can improve the elastic force 4 of spring, establish 55 pairs of bottoms of C type ring at bottom 54 outside cards and fix.

But the above has been illustrated one and has comprised the two joints structure of the sleeve arrangement 5 of the sleeve of cutting ferrule and slide relative mutually, principle and method of work, equally, sleeve in the sleeve arrangement 5 can be three the joint or three the joint more than, but only need between the sleeve cutting ferrule and slide relative mutually, the two ends of spring 4 offset with the sleeve at sleeve arrangement 5 two ends respectively, the sleeve at sleeve arrangement 5 two ends respectively with front vehicle frame 1, back vehicle frame 2 is hinged, just can be implemented the utility model by noted earlier, its structure, principle and method of work and noted earlier same or similar repeat no more herein.

Claims

1. Shock absorber, comprise front vehicle frame (1) and back vehicle frame (2), front vehicle frame (1) and back vehicle frame (2) are hinged by hinge (3), it is characterized in that: be connected with a sleeve arrangement (5) between described front vehicle frame (1) and the back vehicle frame (2), described sleeve arrangement (5) but comprise the two joints sleeve of cutting ferrule and slide relative mutually at least, the two ends of spring (4) offset with the sleeve at sleeve arrangement (5) two ends respectively, and the sleeve at sleeve arrangement (5) two ends is hinged with front vehicle frame (1), back vehicle frame (2) respectively.

2. Shock absorber according to claim 1, it is characterized in that: described sleeve arrangement (5) comprises outer sleeve (51) and inner sleeve (52), the two ends of spring (4) offset with outer sleeve (51), inner sleeve (52) respectively, described outer sleeve (51) is hinged with straight-bar (11) middle part of front vehicle frame (1), and described inner sleeve (52) is hinged with side lever (21) end of back vehicle frame (2).

3. Shock absorber according to claim 2 is characterized in that: be with ring set (61) on the described outer sleeve (51), described ring set (61) two ends are hinged in the straight-bar with two poles (11).

4. Shock absorber according to claim 3 is characterized in that: described outer sleeve (51) is nested by screw thread (511) on the outer sleeve (51) and the negative thread (611) in the ring set (61) with ring set (61).

5. Shock absorber according to claim 3 is characterized in that: described ring set (61) two ends have axis hole (612), and the pole in the described straight-bar (11) is offered respective through hole, and bearing (111) is housed in the through hole.

6. Shock absorber according to claim 4 is characterized in that: described outer sleeve (51) is gone up by screw thread (511) cutting ferrule clamp nut (56).

7. Shock absorber according to claim 2 is characterized in that: the outer end of described outer sleeve (51) interlocks with bottom (54) mutually by negative thread (541), and bottom (54) is replaced in the end of spring (4).

8. Shock absorber according to claim 7 is characterized in that: a C type ring (55) is established in described bottom (54) outside also card.

9. Shock absorber according to claim 2 is characterized in that: described inner sleeve (52) outer end is provided with axis hole (521), is hinged by axis hole (521) and side lever (21) end.

10. Shock absorber according to claim 2, it is characterized in that: install sliding sleeve (53) between described outer sleeve (51) and the inner sleeve (52), described sliding sleeve (53) inner ring surface cutting ferrule inner sleeve (52), negative thread (531) bolt of sliding sleeve (53) outer ring surface and outer sleeve (51).