Main gear nut riveting device

Abstract

A main tooth nut riveting device, the main tooth nut riveting device comprises a push-pull rod, the push-pull rod is connected with a riveting clamp through a connecting rod, and the two ends of the connecting rod are respectively connected with the push-pull rod and the riveting clamp through a pin shaft. The riveting clamp comprises a first riveting block, a second riveting block, a positioning block and a limit block. The extended ends of the middle sections of the first riveting block and the second riveting block are hinged together by screws to form a riveting clamp. The lower ends of the first riveting block and the second riveting block are connected and fixed to the connecting rod through a pin shaft. The upper end of the first riveting block extends a riveting portion toward the hinged connection with the second riveting block, and the upper end of the second riveting block extends a nut engaging portion toward the hinged connection with the first riveting block. The central axis of the riveting portion and the central axis of the nut engaging portion are located on the same straight line. A positioning block is arranged in the mounting groove in front of the nut engaging portion, and the upper end of the positioning block extends axially into the nut engaging portion, and a limit block is arranged between the positioning block and the nut engaging portion.

Description

Technical Field

[0001] The utility model relates to the field of riveting equipment, in particular to a main gear nut riveting device. Background Art

[0002] During the batch assembly of the main reducer, since the main gear nut is installed in the countersunk hole, it is necessary to press rivet the main gear nut. The existing press riveting device cannot press rivet the main gear nut placed in the countersunk hole and cannot meet the press riveting requirements of the main gear nut. Therefore, the press riveting of the main gear nut is completed by workers by repeatedly knocking and riveting. Repeated knocking will cause the flange runout to deteriorate, and the assembly quality cannot meet the requirements. Ultimately, the assembly quality of the main reducer is reduced, affecting the performance of the main reducer. Summary of the invention

[0003] The utility model aims to provide a main tooth nut riveting device to address the corresponding deficiencies of the prior art. The main tooth nut riveting device can rivet the main tooth nut into place at one time.

[0004] The object of the utility model is achieved by adopting the following scheme: a main tooth nut riveting device, the main tooth nut riveting device includes a push-pull rod, the push-pull rod is connected to a riveting clamp through two connecting rods, and the two ends of the connecting rod are respectively connected to the push-pull rod and the riveting clamp through a pin shaft. The riveting clamp includes a first riveting block, a second riveting block, a positioning block and a limit block. The extended ends of the middle sections of the first riveting block and the second riveting block are hinged together by screws to form a riveting clamp. The lower ends of the first riveting block and the second riveting block are connected and fixed to the connecting rod by a pin shaft. The upper end of the first riveting block extends a riveting portion toward the hinged connection with the second riveting block, and the upper end of the second riveting block extends a nut engaging portion toward the hinged connection with the first riveting block. The central axis of the riveting portion and the central axis of the nut engaging portion are located on the same straight line. A positioning block is arranged in the mounting groove in front of the nut engaging portion, and the upper end of the positioning block extends axially into the nut engaging portion, and a limit block is arranged between the positioning block and the nut engaging portion.

[0005] The main tooth nut engaging portion is a semicircular stepped groove, and an arc-shaped clearance groove is provided between the main tooth nut engaging portion and the top end of the second riveting block.

[0006] The riveting portion is tapered.

[0007] The positioning block and the limiting block are connected to the second riveting block through screws.

[0008] The rivet clamp is made of 12CrMoV.

[0009] The utility model has the advantages that the main gear nut of the main reducer can be statically riveted and riveted into place at one time, eliminating the situation where the flange runout is deteriorated due to multiple manual knocking and riveting impact, and can effectively reduce the labor intensity of workers and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is the front view of the utility model;

[0012] Figure 3 It is the left view of the utility model;

[0013] Figure 4 It is the right view of the utility model;

[0014] Figure 5 This is a schematic diagram of the structure of the first pressure riveting block in the utility model;

[0015] Figure 6 This is a schematic diagram of the structure of the second pressure riveting block in the utility model;

[0016] Figure 7 This is a schematic diagram of the positioning block structure in the utility model;

[0017] Figure 8 This is a schematic diagram of the structure of the limit block in the utility model;

[0018] Fig. 9 Schematic diagram of the main gear nut structure. DETAILED DESCRIPTION

[0019] like Figures 1 to 9As shown, a main tooth nut riveting device comprises a push-pull rod 6, and the push-pull rod 6 is connected to a riveting clamp a through two connecting rods 5, and the two ends of the connecting rod 5 are respectively connected to the push-pull rod 6 and the riveting clamp a through a pin shaft 7, and the riveting clamp a comprises a first riveting block 8, a second riveting block 4, a positioning block 2 and a limiting block 3, and the first riveting block 8 and the extended end of the middle section of the second riveting block 4 are hinged together by screws to form the riveting clamp a, and the lower ends of the first riveting block 8 and the second riveting block 4 are connected and fixed to the connecting rod 5 through the pin shaft 7, and the upper end of the first riveting block 8 extends a riveting portion 9 toward the hinge with the second riveting block 4, and the riveting portion 9 is conical. The upper end of the second riveting block 4 extends a nut fitting portion 1 toward the hinge with the first riveting block 8. The main tooth nut fitting portion 1 is a semicircular stepped groove. An arc-shaped clearance groove 4a is provided between the main tooth nut fitting portion 1 and the top of the second riveting block 4. The arc-shaped clearance groove 4a enables the nut fitting portion 1 to extend into the countersunk hole for installing the main tooth nut. The central axis of the riveting portion 9 and the central axis of the nut fitting portion 1 are located on the same straight line. A positioning block 2 is provided in the installation groove 10 in front of the nut fitting portion 1, and the positioning block 2 limits the main tooth nut. The upper end of the positioning block 2 extends axially into the nut fitting portion 1, and a limiting block 3 is provided between the positioning block 2 and the nut fitting portion 1. The positioning block 2 and the limiting block 3 are connected to the second riveting block 4 by screws. The riveting clip a is made of 12CrMoV.

[0020] The push-pull rod 6 in the main tooth nut riveting device is connected to a hydraulic cylinder, and the hydraulic system is connected to the drive motor. When the drive motor is started, the drive motor drives the hydraulic cylinder to reciprocate. Since the push-pull rod 6 in the riveting device is fixedly connected to the hydraulic cylinder, the reciprocating motion of the hydraulic cylinder drives the riveting device to move together. When the hydraulic cylinder moves forward, the riveting clamp a opens, and the riveting part 10 and the nut fitting part in the opened riveting clamp a are aligned with the main tooth nut to be riveted. After alignment, the drive motor is started to drive the hydraulic cylinder to move backward, and the riveting clamp a is closed to perform riveting on the main tooth nut.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification made to the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A main gear nut riveting device, characterized in that: The main gear nut pressure riveting device comprises a push-pull rod (6), wherein the push-pull rod (6) is connected to a pressure riveting clamp (a) through two connecting rods (5), and the two ends of the connecting rod (5) are respectively connected to the push-pull rod (6) and the pressure riveting clamp (a) through a pin shaft (7), and the pressure riveting clamp (a) comprises a first riveting block (8), a second riveting block (4), a positioning block (2) and a limiting block (3), and the extended ends of the middle sections of the first riveting block (8) and the second riveting block (4) are hinged together by screws to form the pressure riveting clamp (a), and the lower ends of the first riveting block (8) and the second riveting block (4) are connected to the connecting rod (5) through a pin shaft. (7) connected and fixed, the upper end of the first rivet block (8) extends a rivet portion (9) toward the hinged connection with the second rivet block (4), the upper end of the second rivet block (4) extends a nut engaging portion (1) toward the hinged connection with the first rivet block (8), the central axis of the rivet portion (9) and the central axis of the nut engaging portion (1) are located on the same straight line, a positioning block (2) is arranged in the mounting groove (10) in front of the nut engaging portion (1), the upper end of the positioning block (2) extends axially into the nut engaging portion (1), and a limit block (3) is arranged between the positioning block (2) and the nut engaging portion (1).

2. The main tooth nut riveting device according to claim 1, characterized in that: The main tooth nut engaging portion (1) is a semicircular stepped groove, and an arc-shaped clearance groove (4a) is provided between the main tooth nut engaging portion (1) and the top end of the second riveting block (4).

3. The main tooth nut riveting device according to claim 1, characterized in that: The riveting portion (9) is conical.

4. The main tooth nut riveting device according to claim 1, characterized in that: The positioning block (2) and the limiting block (3) are connected to the second riveting block (4) via screws.

5. The main tooth nut riveting device according to claim 1, characterized in that: The rivet clamp (a) is made of 12CrMoV.

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