CN-224213998-U - Pin riveting installation structure for automobile door panel pulley shaft

Abstract

The utility model discloses a pin riveting installation structure for a pulley shaft of an automobile door panel, which comprises a door panel main body, a boss, a pulley piece and a shaft pin mechanism, wherein the boss is provided with a shaft hole, the shaft pin mechanism is fixed with the door panel main body through a riveting head, the pulley piece is rotationally connected with the shaft pin mechanism through a rolling bearing, and an inner ring bulge and an outer ring bulge are arranged to reduce friction and limit displacement. The structure is fast installed through riveting, is matched with a rolling bearing and an optimized pulley design, remarkably improves connection stability and pulley rotation smoothness, reduces abrasion, prolongs service life, and is suitable for efficient installation and reliable operation of an automobile window regulator.

Inventors

• WANG YU
• CHEN ZHONGYU
• JIN CHAOHUI

Assignees

• 上海天怡塑胶工业有限公司

Dates

Publication Date

20260508

Application Date

20250603

Claims (6)

1. 1. The pin riveting installation structure for the pulley shaft of the automobile door panel is characterized by comprising a pulley piece (3), a shaft pin mechanism (4) and a boss (2) arranged on a door panel main body (1), wherein the boss (2) is provided with a shaft hole (101), the shaft pin mechanism (4) is installed in the shaft hole (101), and the pulley piece (3) is installed on the shaft pin mechanism (4); The shaft pin mechanism (4) comprises a first column body (402) and a second column body (403) which are integrally formed, the first column body (402) is rotationally connected with the pulley piece (3), the second column body (403) is assembled in the shaft hole (101), the end part of the first column body (402) is provided with a retainer ring (401), the end part of the second column body (403) is provided with a riveting head (404), and the riveting head (404) is fixed through riveting by the riveting machine to realize tight connection.
2. 2. The pin riveting installation structure for a pulley shaft of an automobile door panel according to claim 1, wherein the pulley member (3) comprises a pulley body (301), an inner ring protrusion (302) and an outer ring protrusion (303) fixedly installed on the pulley body (301), the inner ring protrusion (302) is arranged on the adjacent surface of the pulley body (301) and the boss (2) and used for reducing the contact area with the surface of the boss (2) so as to reduce friction force, and the outer ring protrusion (303) is arranged on the opposite side of the inner ring protrusion (302) and is abutted against the periphery of the retainer ring (401).
3. 3. The pin riveting installation structure for the automobile door panel pulley shaft is characterized in that a bearing pad (6) is further arranged between the riveting head (404) and the door panel main body (1).
4. 4. The pin riveting installation structure for the automobile door panel pulley shaft is characterized in that the bearing pad (6) comprises a bearing sheet (601) and an annular ring (602) which are integrally formed, a cylindrical slot (102) is formed in the shaft hole (101), the annular ring (602) is installed in the cylindrical slot (102), and the bearing sheet (601) is tightly attached to the back face of the boss (2).
5. 5. The pin riveting installation structure for the automobile door panel pulley shaft is characterized in that an anti-falling block (5) for preventing a steel wire rope from falling off a groove is fixedly arranged on the boss (2), and the anti-falling block (5) is arranged above the pulley piece (3).
6. 6. The pin riveting installation structure for the pulley shaft of the automobile door panel according to claim 1, wherein a rolling bearing is installed between the pulley piece (3) and the shaft pin mechanism (4).

Description

Pin riveting installation structure for automobile door panel pulley shaft Technical Field The utility model relates to the technical field of automobile part installation, in particular to a pin riveting installation structure for an automobile door panel pulley shaft. Background In the field of automobile manufacturing, the mounting quality of pulley shaft pins of automobile door panels directly influences the sliding smoothness and the overall stability of a window regulator. The current common installation mode has the following problems: The matching precision between the shaft pin, the pulley and the door plate is insufficient, so that the pulley is easy to loosen when sliding, and abnormal sound is generated; The traditional connection mode has the advantages of larger friction force, serious abrasion of the pulley and the shaft pin and short service life; the installation process relies on manual operation, and is inefficiency and installation accuracy are difficult to guarantee. Therefore, there is a need for a pin riveting installation structure that is compact, easy to install, and highly reliable. Disclosure of utility model The utility model aims to provide a riveting installation structure for an automobile door plate pulley shaft pin, which realizes quick and accurate installation of the shaft pin, reduces friction loss, prolongs the service life of parts and improves the service performance of an automobile window rocker by optimizing the shaft pin connection mode and the pulley assembly design. The pin riveting installation structure for the pulley shaft of the automobile door panel comprises a pulley piece, a shaft pin mechanism and a boss arranged on a door panel main body, wherein the boss is provided with a shaft hole, the shaft pin mechanism is arranged in the shaft hole, and the pulley piece is arranged on the shaft pin mechanism; The shaft pin mechanism comprises a first cylinder and a second cylinder which are integrally formed, the first cylinder is rotationally connected with the pulley piece, the second cylinder is assembled in the shaft hole, the end part of the first cylinder is provided with a retainer ring, the end part of the second cylinder is provided with a riveting head, and the riveting head is fixed through a riveting machine to realize tight connection. As a preferable scheme of the utility model, the pulley piece comprises a pulley main body, an inner ring bulge and an outer ring bulge, wherein the inner ring bulge and the outer ring bulge are fixedly arranged on the pulley main body, the inner ring bulge is arranged on the adjacent surface of the pulley main body and the boss and is used for reducing the contact area with the surface of the boss so as to reduce friction force, and the outer ring bulge is arranged on the opposite side of the inner ring bulge and is abutted against the periphery of the retainer ring. As a preferable scheme of the utility model, a bearing pad is arranged between the riveting head and the door plate main body. As a preferable scheme of the utility model, the pressure-bearing pad comprises a pressure-bearing sheet and an annular ring which are integrally formed, a cylindrical slot is formed in the shaft hole, the annular ring is arranged in the cylindrical slot, and the pressure-bearing sheet is tightly attached to the back surface of the boss. As a preferable scheme of the utility model, the boss is fixedly provided with an anti-falling block for preventing the steel wire rope from falling off the groove, and the anti-falling block is arranged above the pulley piece. As a preferable mode of the present utility model, a rolling bearing is installed between the pulley member and the shaft pin mechanism. By adopting the technical scheme, the utility model has the following beneficial effects: The riveting head is deformed and fixed through the riveting machine without complex manual operation, the installation efficiency is obviously improved, the labor cost is reduced, the rigid connection of the riveting head and the door plate main body is realized through pressure riveting, the accurate positioning holes are matched, the looseness of the shaft pin is avoided, the structural stability is improved, the rolling bearing is arranged to greatly reduce the sliding friction force, the energy loss is reduced, the contact area is further reduced due to the design of the inner ring bulge, the abrasion is reduced, the service lives of the pulley and the shaft pin are prolonged, the anti-falling block structure effectively prevents the steel wire rope from falling out of the groove, the operation safety of the window winder is improved, the pressure bearing pad disperses the riveting impact force, and the door plate main body is protected from being damaged. Drawings FIG. 1 is a schematic diagram of the overall structure of the present utility model; FIG. 2 is a cross-sectional view of the overall structure of the present utility model; FIG. 3 is a