CN-121989612-A - Bearing type bushing for installing anti-tilting rod of automobile or mechanical device

Abstract

The present invention relates to a bearing bush for mounting an anti-roll bar of an automobile or a machine, and more particularly, to a bearing bush for mounting an anti-roll bar of an automobile or a machine for supporting an anti-roll bar which is balanced left and right to prevent rolling and receives a torsional load, and more particularly, to a bearing bush which minimizes rubber molding, is replaced with a plastic member as much as possible to achieve weight reduction, and can obtain a strong supporting force, and in particular, can be improved in such a manner that the load in the R direction is minimized and the resistance in the Q direction can be enhanced.

Inventors

• Shi Xianghao
• CHEN XINGZHU
• ZHAO JUNYING
• Han Shiqin

Assignees

• AIA汽车配件有限公司

Dates

Publication Date

20260508

Application Date

20241101

Claims (4)

1. 1. A bearing type bushing for installing an anti-tilting lever of an automobile or a mechanical device is characterized in that, A bushing for installing an anti-tilting lever is composed of a rubber-made pressing body (10) surrounding an anti-tilting lever (1), a plastic-made bearing plate (20) surrounding the pressing body, a plastic-made upper bracket (30) surrounding the bearing plate (20) from above, and a plastic-made lower bracket (40) coupled to the lower part of the upper bracket (30) and surrounding the bearing plate (20) together with the upper bracket (30), The pressurizing body (10) is formed by 2 semicircular divided bodies, completes a circular shape when being connected, completely surrounds the anti-tilting rod (1), An outer surface concave portion (11) in a "+" shape and 4 outer surface convex portions (12) left in a quadrangle shape protruding by the formation of the outer surface concave portion (11) are formed on the outer surface of each pressing body (10), The bearing plates (20) are formed of 2 pieces divided in a semicircular shape, and when the bearing plates are in contact with each other, the bearing plates are rounded, the pressing body (10) is engaged with the inner surface of each bearing plate (20), an inner surface concave portion (22) having a shape corresponding to the outer surface convex portion (12) of the pressing body (10) is formed, and an inner surface convex portion (21) corresponding to the outer surface concave portion (11) is formed by a portion where the inner surface concave portion (22) is not formed.
2. 2. The bearing bush for mounting an anti-roll bar of an automobile or a mechanical device according to claim 1, wherein a concave-convex pattern (23) having a lattice shape is formed on an inner surface of the inner surface concave portion (22), and friction is enhanced when the outer surface convex portion (12) of the rubber-made pressing body (10) is brought into close contact with the concave-convex pattern.
3. 3. The bearing bush for mounting an anti-roll bar of an automobile or a mechanical device according to claim 1, wherein, On the outer surface of each bearing plate (20), 2 sliding protrusions (24) are formed along the outer peripheral surface, and external friction surfaces (25) composed of 3 surfaces are formed between and on both sides of the sliding protrusions (24), The seal coupling convex part (26) is formed at both ends of the bearing plate (20) in a form of contracting in diameter when compared with the external friction surface (25), and is formed in a stepwise shape as a whole by the sliding convex part (24), the external friction surface (25) and the seal coupling convex part (26), An upper assembling surface (31) formed by a semicircle shape surrounding the outer surface of the bearing plate (20) is formed on the upper inner surface of the upper bracket (30), a lower assembling surface (41) formed by a semicircle shape is formed on the upper inner surface of the lower bracket (40), the bearing plate (20) combined with the pressurizing body (10) is surrounded and assembled, The upper assembly surface (31) and the lower assembly surface (41) are respectively formed with sliding concave parts (35, 45) which are consistent with the sliding convex parts (24) of the bearing plate (20), and inner friction surfaces (36, 46) which are consistent with the outer friction surfaces (25) of the bearing plate (20) are respectively formed between and at two sides of the sliding concave parts (35, 45).
4. 4. The bearing bush for mounting an anti-roll bar of an automobile or a mechanical device according to claim 1, wherein, Seal engaging concave portions (38) (48) and engaging ribs (39) (49) for engaging the bearing seal (50) are formed at both side inlet portions of the upper bracket (30) and the lower bracket (40) so as to easily engage the bearing seal (50) together with the seal engaging convex portions (26) of the bearing plate (20).

Description

Bearing type bushing for installing anti-tilting rod of automobile or mechanical device Technical Field The present invention relates to a bushing for supporting an anti-roll bar provided in an automobile or other various mechanical devices that generate movement and vibration, and more particularly, to an improvement in such a manner that both weight saving and lengthwise resistance of the anti-roll bar can be enhanced and load in a rotation direction can be minimized. Background As is well known, automobiles and various mechanical devices often use an anti-roll bar which is provided with a rubber-made mounting bush to insulate and absorb vibration, impact, and the like, while maintaining a left-right balance to prevent rolling and receiving a torsional load and the like. An example of the anti-roll bar is a stabilizer bar (STABILIZER BAR) provided in an automobile, and the purpose of the anti-roll bar is to improve the suppression and control of vibration and noise generated by a tire or the running stability during running of the automobile, and to fix the stabilizer bar to a vehicle body, a bush is attached to suppress and control vibration and noise. The conventional technique related to the mounting bush as described above has an effect of molding a bush made of rubber, and then fixing the bush to a vehicle body by pressing a metal material bracket after embedding and molding a metal material plate inside the bush. Such conventional mounting bushings use an inner plate and an outer bracket made of metal materials, and therefore, the weight is inevitably heavy, which has a disadvantage that it runs counter to the development direction of the automobile industry for which weight reduction is pursued, and there are problems that much time and equipment and labor and cost are required for manufacturing because insert molding of other materials and vulcanization work by rubber material molding are accompanied by many processes such as degreasing, shot blasting, film coating, adhesive coating, and the like, which are general pretreatment processes. In addition, for the basic function required for mounting the bush, it is important that the anti-roll bar control the forces in the P direction (the vertical direction of the automobile) and the Q direction (the longitudinal direction of the bar, the lateral direction of the automobile) and accommodate the forces acting in the R direction (the rotational direction of the bar, the rotational direction of the Q axis of the automobile, and the PITCH direction), and the conventional mounting bush has a structure in which the rigidity of the force in the P direction and the Q direction is insufficient and in particular, the rotational force in the R direction is difficult to accommodate the rotational action due to the rigidity of the rubber itself. Such a rotation action is difficult to accommodate without load, which means that the load and aging of the rubber progress rapidly, and if the load (rotation angle) of the rubber increases, the R-direction rigidity against the rubber also increases, the accommodation degree of the rotation force decreases, and eventually the rubber is damaged. Disclosure of Invention The present invention has been made in view of the above-described problems, and a first object thereof is to provide a bushing which can be manufactured in a simple and quick manner and which can reduce the overall weight, and to provide a bushing which can withstand forces in the P-direction and Q-direction, and in particular, to improve the response force in the R-direction with respect to the rotational action in the vicinity of zero load, and to increase the lifetime. In order to achieve the above object, according to the present invention, an anti-tilt rod mounting bush is constituted by a rubber-made pressing body surrounding an anti-tilt rod, a plastic-made bearing plate surrounding the pressing body (or other lightweight materials may be used), an upper bracket made of plastic surrounding the bearing plate from above, and a lower bracket made of plastic that is coupled to the lower portion of the upper bracket and surrounds the bearing plate together with the upper bracket. The pressing body and the bearing plate are respectively formed of 2 semi-circles and then are combined with each other to form a circle. With this structure, the pressing body and the bearing plate have a structure having an adhesion force and an anti-slip force therebetween, and the anti-slip force is enhanced in the Q direction so as to be rotatable in a state of being coupled with each other. The present invention is characterized in that the bearing plate, the upper bracket and the lower bracket are configured to slide and rotate relative to each other, and the lubricant is applied to smoothly accommodate the rotational force in the R direction. Moreover, an important feature of the present invention is that bearing seals may be provided at the inlets on both sides of the up