CN2854187Y - Rubber joint assembly of autotruck reaction bar - Google Patents

Abstract

Motor truck back action bar rubber joint assembly is applied in connecting double bridges in equalizing-suspension system of motor truck, which has a pin shaft whose middle part is a conglobulation. The two ends in axial direction of the conglobulation are coiled with an end cap. A vulcanized rubber connected in unity is arranged between the outside conglobulation and the end cap. The conglobulation in the middle part of the pin shaft and the rubber body are connected to a connecting hole of a back action bar joint tightly. A seat ring of one end cap is clamped to one end protruding platform of the connecting hole. Inside another end of the connecting hole is embedded with a ring groove provided with a snap ring. The seat ring of the other end cap is clamped to the inside snap ring. The coalition between an elastomer and the back action bar joint spherical pore can center automatically, which can improve damping effect and prolong service life. A circular arc trough is distributed around the conglobulation. A matching circular arc protruding ring are embedded inside the rubber body for ensuring reliable connection between the conglobulation and the rubber body of the pin shift.

Description

Rubber joint assembly of counteractive rod in autotruck

Technical field: the utility model is to belong to the band of the back reaction rod up and down elastomer connector assembly that connects between the doube bridge in the truck equalizing suspension system.

Background technique: existing reaction rod joint assembly, bearing pin is all arranged, bearing pin middle part be a spheroid, has ball bowl, the axial two ends of ball bowl to be surrounded with elastic support ring, seat ring, to be covered with dust etc. outside the spheroid movingly.Owing to be that the ball bowl is arranged movingly, and the ball bowl is that the split butt joint is discontinuous, and vibration damping is poor, damages easily.Ball bowl, elastic support ring, seat ring, assembly parts such as be covered with dust are too much, and rate of fault and spoilage are just high more.These assemblies are connected with torque rod connector and cooperate assembling complicated, and the reaction joint all is to adopt elastic support or steel pipe, cooperate intensity low.

Summary of the invention: in order to solve the above-mentioned technical problem of technology in the prior art, the utility model purpose to provide exactly a kind of simple in structure, be convenient to assembling, higher, the non-damageable rubber joint assembly of counteractive rod in autotruck of adhesive strength.

Process is to the research of the structure and material of various different back reaction rods, and employing domestic raw materials and present more advanced production technology combine and develop the utility model rubber joint assembly of counteractive rod in autotruck.

The utility model is used for the rubber joint of counteracting rod in back assembly of many bridges truck, and bearing pin is arranged, and bearing pin middle part be a spheroid, and the axial two ends of spheroid are surrounded with end cap, and spheroid outward, have the vulcanized rubber body that is connected as a single entity between the end cap; It is characterized by: the spheroid and the rubber body at bearing pin middle part are closely connected at the attachment hole of torque rod connector, the seat ring of one end cap is stuck in the boss of attachment hole one end, attachment hole the other end inboard has annular groove, and annular groove is inlaid with circlip, and the seat ring of another end cap is stuck in the circlip inboard.The spheroid of vulcanized rubber body and bearing pin almost is connected as a single entity like this, and mainly the resiliently deformable by rubber cushions multidirectional stressed and moment of torsion, and does not have other easy-abrasion parts.Particularly the spheroid side face is distributed with arc groove, and the rubber body inboard has the circular arc bulge loop of corresponding matching, and the spheroid of bearing pin is connected with rubber body reliably, and integral body is stressed synchronously.Simultaneously, the attachment hole of torque rod connector is preferably ball-type; The rubber body outer circumferential face also is a phase transition fit ball-type, is more convenient for cushioning multidirectional moment of torsion and accepts, and guarantee that rubber body is not fragile.End cap and rubber body are connected as a single entity, and rubber body more can guarantee efficient buffer by end cap and the axial two ends of torque rod connector transfer function power, and are difficult for making rubber body to damage.The cross section of end cap is preferably  shape for this reason, is convenient to the attachment hole two ends clamping with torque rod connector, also is convenient to rubber body is played styling, makes the rubber body moulding more even.Bearing pin middle part be a sphere, and face that can whole projection is at a sphere, also can contain sphere and form approximate sphere with the face of other shapes, and can also be ellipsoid, almost spherical body as shown in drawings preferably.

Composition of the present utility model compared with the prior art, the elastomer connector assembly is that spherical coupling shaft and two end caps adopt rubber to be connected as a single entity, and exterior contour is preferably spherical assembly parts, makes this parts rubber good compactness, the adhesion strength height no longer includes Sealing and fixed block; Form the body of combining closely of a spherical elastomer and torque rod connector spherical pore after the overall package, have elasticity self-alignment performance; . can bear the power of different direction, external force can set back after eliminating, and has improved damping effect greatly, and is greatly improved its working life; Simple in structure, the elastomer connector assembly is easy to change, and can be suitable for the vehicle of various use back reaction rods.

Description of drawings:

Fig. 1 is the elastomer connector assembly structure chart of back reaction rod under the truck;

Fig. 2 is the elastomer connector assembly structure chart of back reaction rod on the truck;

Fig. 3 is a back reaction rod band elastomer connector assembly structure chart under the truck;

Fig. 4 is a back reaction rod band elastomer connector assembly structure chart on the truck.

Below in conjunction with the nearly step explanation of accompanying drawing example the utility model.

Embodiment:

This many bridges truck rubber joint of counteracting rod in back assembly (referring to Fig. 1,2) up and down that is used for, its elastomer connector assembly has bearing pin 2, bearing pin middle part be a spheroid, and the axial two ends of spheroid are surrounded with end cap 3, and spheroid outward, have the vulcanized rubber body 4 that is connected as a single entity between the end cap.The elastomer connector assembly is that spherical coupling shaft (middle for spherical and three road arc grooves are arranged) adopts the sulfuration of rubber injection technologies to be the assembly parts of exterior contour for sphere with two end caps like this.Such parts rubber good compactness; The adhesion strength height.Basic resiliently deformable by rubber cushions multidirectional stressed and moment of torsion, and does not have other easy-abrasion parts.The spheroid side face is distributed with arc groove, and the rubber body inboard has the circular arc bulge loop of corresponding matching, makes the spheroid of bearing pin be connected more reliable, more whole stressed synchronously with rubber body.The almost spherical body at bearing pin middle part is to be sphere in outer circumferential face corner, and the rubber body side face is a sphere.The cross section of end cap 3 is preferably  shape, and rubber body is played styling, makes rubber body moulding wall thickness more even.Referring to Fig. 3,4, elastomer connector assembly 12 is inserted respectively in the attachment hole 42 of 5 liang of end connectors of back reaction rod 14,16,22, and after the angular positioning on request, with 13 lockings of special circlip for hole.The seat ring of one end cap is stuck in the boss of attachment hole one end, and attachment hole the other end inboard has annular groove, and annular groove is inlaid with circlip 13, and the seat ring of another end cap is stuck in the circlip inboard.Form the body of combining closely of a spherical elastomer and torque rod connector attachment hole after the overall package, have elasticity self-alignment performance, the power that can bear different direction; Improved damping effect greatly; Is greatly improved its working life; The elastomer connector assembly is easy to change; Can be suitable for the vehicle of various use back reaction rods.

Claims (3)

1, a kind of rubber joint of counteracting rod in back assembly that is used for many bridges truck, bearing pin is arranged, the bearing pin middle part is a spheroid, the axial two ends of spheroid are surrounded with end cap, spheroid is outer, the vulcanized rubber body that is connected as a single entity is arranged between the end cap, it is characterized by: the spheroid and the rubber body at bearing pin middle part are closely connected at the attachment hole of torque rod connector, the seat ring of one end cap is stuck in the boss of attachment hole one end, attachment hole the other end inboard has annular groove, annular groove is inlaid with circlip, and the seat ring of another end cap is stuck in the circlip inboard.

2, as the said rubber joint of counteracting rod in back assembly of claim 1, it is characterized by: the spheroid side face is distributed with arc groove, and the rubber body inboard has the circular arc bulge loop of corresponding matching.

3, as claim 1 or 2 said rubber joint of counteracting rod in back assemblies, it is characterized by: the attachment hole of torque rod connector is a ball-type; The rubber body outer circumferential face also is a phase transition fit ball-type.

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