CN210000426U

CN210000426U - wear-resisting sleeve pipe cooperation structure of truck cab suspension rocking arm

Info

Publication number: CN210000426U
Application number: CN201920379231.6U
Authority: CN
Inventors: 申建乎; 成振忠; 党龙; 王兰
Original assignee: SHAANXI WANFANG AUTO PARTS CO Ltd
Current assignee: SHAANXI WANFANG AUTO PARTS CO Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2020-01-31
Anticipated expiration: 2029-03-25

Abstract

The utility model provides a kinds of truck cab suspension rocking arm wear-resisting sleeve pipe cooperation structure, belong to automobile parts and make technical field, this wear-resisting sleeve pipe is flange column structure, adopt 40cr wear-resisting material, and ring flange outside department has chamfers, form conical surfaces at prolonging the atress direction, make the lifting surface enlarge, the pretightning force increases, wear-resisting sleeve pipe height slightly is greater than the flank of thread of flange face bolt, make flange face bolt and inner core keep apart, eliminate wearing and tearing between the two, this utility model discloses can effectively improve among the prior art extrusion friction that the screw thread can produce the rubber axle sleeve inner core, bite mark and wearing and tearing, improve the reliability and the durability of spare part.

Description

wear-resisting sleeve pipe cooperation structure of truck cab suspension rocking arm

Technical Field

The utility model belongs to the technical field of the automobile parts makes, more specifically says, the utility model relates to a truck driver's cabin suspension rocking arm wear-resisting sleeve pipe cooperation structure.

Background

At present, heavy truck driver's cabin suspension rocking arm bush inner core adopts the casting inner core more to reach the lightweight, fall the performance such as making an uproar, but when its installation is fixed, adopt the bolt pair to fix, but in the use, the screw thread can produce extrusion friction to the inner core, forms bite mark and wearing and tearing, produces wearing and tearing powder etc. and the reliability and the spare part life-span of influence connection, the utility model provides a wear-resisting sleeve pipe cooperation structure of truck driver's cabin suspension rocking arm can improve extrusion friction, bite mark and wearing and tearing that the screw thread produced to the inner core, improves the reliability and the durability of spare part.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an kinds of wear-resisting sleeve pipe cooperation structure of truck driver's cabin suspension rocking arm to screw thread can produce extrusion friction to the inner core in solving the driver's cabin suspension rocking arm that proposes in the above-mentioned technical background, forms bite trace and wearing and tearing, produces the problem that influences reliability and spare part life-span of connecting such as wearing and tearing powder.

In order to achieve the purpose, the utility model provides a truck cab suspension rocking arm wear-resisting sleeve pipe cooperation structure, including rocker arm support 3, rocker arm bush assembly 2, wear-resisting sleeve pipe 5, characterized in that rocker arm bush assembly 2 contain inner core 6, inner core 6 includes internal diameter pipeline section, the internal diameter of internal diameter pipeline section is greater than the internal diameter of the rest of inner core 6, wear-resisting sleeve pipe 5 contain ring flanges, the ring flange department has chamfer of conical surface structure, the illegal ring flange external diameter of wear-resisting sleeve pipe 5 with the internal diameter phase-match of internal diameter pipeline section, the illegal ring flange part of wear-resisting sleeve pipe 5 is established in internal diameter pipeline section inner wall, wear-resisting sleeve pipe 5 and rocker arm bush assembly 2 fix the inboard at rocker arm support 3 by the cooperation of clamping fixing device, clamping fixing device include flange bolt 1 and supporting flange nut 4.

Preferably, the core 6 is a one-piece casting.

Preferably, the wear-resistant sleeve 5 is made of 40cr of wear-resistant materials.

Preferably, the core 6 comprises directly cast sunken lands.

Preferably, the angle α of the chamfer is in the range of 30 DEG- α DEG-60 deg.

Has the advantages that: 1. the flange-shaped wear-resistant sleeve is adopted, so that the stress area of the mounting point can be effectively increased, and the pretightening force of the bolt pair is increased. Meanwhile, the sleeve is made of wear-resistant materials, so that the abrasion of the bolt pair to the sleeve can be greatly reduced. 2. The height of the wear-resistant sleeve is slightly larger than the thread surface of the flange bolt, so that the flange bolt and the inner core can be isolated, and the wear between the flange bolt and the inner core can be eliminated. Meanwhile, the sleeve with lower height is adopted, so that the cost can be effectively saved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the cab suspension wear-resistant sleeve fitting structure of the present invention.

Fig. 2 is a cross-sectional view of the cab suspension wear-resistant sleeve fitting structure of the present invention.

Wherein: 1. a flange face bolt; 2. a rocker arm bushing assembly; 3. a rocker arm stand; 4. a flange face nut; 5. a wear-resistant sleeve; 6. an inner core.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the structures or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1, this is the utility model discloses a kind of concrete cooperation structures, this wear-resisting sleeve pipe cooperation structure comprises flange face bolt 1, rocker arm bush assembly 2, rocker arm support 3, flange face nut 4 and wear-resisting sleeve pipe 5, referring to fig. 2, the utility model discloses in rocker arm bush assembly 2 contain inner core 6, inner core 6 includes internal diameter pipeline section, the internal diameter of internal diameter pipeline section is greater than the internal diameter of the rest part of inner core 6, in order to facilitate the assembly, wear-resisting sleeve pipe 5 contain ring flanges, the ring flange department has chamfer of conical surface structure, in order to facilitate the assembly, improve reliability and the durability of spare part, the illegal flange external diameter of wear-resisting sleeve pipe 5 and the internal diameter phase-match of the No. internal diameter pipeline section, the illegal flange part of wear-resisting sleeve pipe 5 is established in the No. internal diameter pipeline section inner wall, sleeve pipe 5 and rocker arm bush assembly 2 be fixed at rocker arm support 3 inboard by the cooperation of clamping fixing device, clamping device include flange bolt 1 and supporting flange nut 4 that this wear-resisting sleeve pipe is suspended when installing, the wear-resisting sleeve pipe is the cab, the flange nut structure, the flange mounting structure can be because of this flange face bolt 1 increases the effective pretightning force increase, the flange bolt structure, the flange mounting area can be adopted to the flange bolt structure, wear-resisting bolt mounting area is increased, thereby the flange bolt mounting structure, wear-resisting flange bolt mounting area is increased, the flange bolt mounting structure, wear-resisting nut increases the flange bolt mounting area is effective.

Specifically, the inner core 6 is a one-piece casting.

Specifically, the wear-resistant sleeve 5 is made of 40cr of wear-resistant materials.

Specifically, the inner core 6 comprises convex inner walls which are directly cast.

Specifically, the angle α of the chamfer is in the range of 30 degrees to α degrees to 60 degrees.

Referring to fig. 2, in this structure, the distance from the thread surface of the flange bolt 1 to the outer side (flange nut side) of the rocker arm bracket 3 is a1, the distance from the wear-resistant sleeve 5 to the outer side (flange nut side) of the rocker arm bracket 3 is a2, and the distance from the boss surface of the inner core 6 to the outer side (flange nut side) of the rocker arm bracket 3 is A3. The size of 2mm to 5mm (A3-A2) to ensure that the wear-resistant sleeve 5 has no clearance with the rocker arm bracket 3 and the rocker arm bushing assembly 2; the thickness of the wear-resistant bush 5 is more than or equal to (A2-A1) and less than or equal to 20mm, so that the wear-resistant bush 5 can effectively isolate the flange bolt 1 from the inner core 6, and the abrasion of the flange bolt 1 and the inner core 6 is avoided. In the matching structure, all matching sizes are clearance fit, and the matching structure has high fault tolerance.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

The matching structure of the wear-resistant sleeve of the suspension rocker arm of the truck cab comprises a rocker arm support (3), a rocker arm bushing assembly (2) and a wear-resistant sleeve (5), and is characterized in that the rocker arm bushing assembly (2) comprises an inner core (6), the inner core (6) comprises a inner diameter pipe section, the inner diameter of the inner diameter pipe section is larger than that of the rest part of the inner core (6), the wear-resistant sleeve (5) comprises flange plates, the positions of the flange plates are provided with chamfers with conical surface structures, the outer diameter of an illegal flange plate of the wear-resistant sleeve (5) is matched with the inner diameter of the pipe section, the part of the illegal flange plate of the wear-resistant sleeve (5) is arranged on the inner wall of the inner diameter pipe section, the wear-resistant sleeve (5) and the rocker arm bushing assembly (2) are fixed on the inner side of the rocker arm support (3) in a matching mode through a clamping fixing device, and the clamping fixing device comprises a flange.
2. The wear-resistant sleeve matching structure for the suspended rocker arm of the truck cab as claimed in claim 1, wherein the inner core (6) is a one-piece casting.
3. truck cab suspension rocker arm wear sleeve engagement structure according to claim 1 or 2, characterized in that the inner core (6) comprises directly cast sunken platforms.
4. The wear-resistant sleeve matching structure for truck cab suspension rocker arms according to claim 1, wherein the wear-resistant sleeve (5) is made of 40cr of wear-resistant material.
5. The truck cab suspension rocker arm wear sleeve engagement structure of claim 1, wherein the chamfer angle α is in the range of 30 ° - α ° -60 °.