CN210335794U

CN210335794U - Dismounting device for shaft neck assembly

Info

Publication number: CN210335794U
Application number: CN201920869730.3U
Authority: CN
Inventors: 龚俊; 吴浩平; 周苗苗; 张来琴; 龚浩强
Original assignee: Jiangxi Changhe Aviation Industries Co Ltd
Current assignee: Jiangxi Changhe Aviation Industries Co Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-04-17
Anticipated expiration: 2029-06-11

Abstract

The utility model belongs to the machining field, concretely relates to axle journal subassembly dismounting device. At present, the disassembly operation is manually completed by an operator, and the end face of the lantern ring is knocked or hammered, so that the implementation difficulty is high, and the product is damaged. The utility model discloses a journal subassembly dismounting device for break away from the lantern ring from the fork ear of rod body, the device include bracket component, split type locking bush and screw rod, wherein the bracket component passes through split type locking bush chucking at the interior terminal surface of the lantern ring in the inboard, constitutes lead screw structure through the screw hole of self and screw rod in the outside. The application is convenient, and the processing quality and efficiency are improved.

Description

Dismounting device for shaft neck assembly

Technical Field

The utility model belongs to the machining field, concretely relates to axle journal subassembly dismounting device.

Background

The helicopter fork ear assembly is an important assembly installed on a helicopter tail rotor hub, and comprises a shaft neck fork ear 9 and a fork ear rod body 11, wherein a lantern ring 10 is installed on the fork ear rod body 11 in an interference fit mode, and the assembly is a long-life assembly, and because the surface requirements of the lantern ring 10 and the fork ear rod body 11 are very high, the assembly is a precision cylindrical surface, and an effective means is lacked when the assembly is returned to a factory for overhaul and disassembly. At present, the disassembly operation is manually completed by an operator, and the end face of the lantern ring 10 is knocked or hammered, so that the implementation difficulty is high and the product is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: through providing a journal subassembly dismounting device, can realize dismantling the quick location of journal subassembly.

The utility model discloses a journal subassembly dismounting device for break away from the lantern ring from the fork ear of rod body, the device include bracket component, split type locking bush and screw rod, wherein the bracket component passes through split type locking bush chucking at the interior terminal surface of the lantern ring in the inboard, constitutes lead screw structure through the screw hole of self and screw rod in the outside.

The bracket component includes lower disk and last disk, and both connect through a plurality of connecting rods.

The lower disc body is provided with a through hole, the split type locking bushing is of a partial annular structure, one end of the split type locking bushing is provided with a step, the inner end face of the step is clamped on the through hole, and the outer end face of the step is abutted to the lantern ring.

The split type locking bush quantity has 3.

The upper plate body is provided with a threaded hole, and the screw rod is abutted to the end face of the fork lug rod body after passing through the threaded hole.

The screw rod is connected with a matching shaft through a bolt, and the matching shaft is abutted to the end face of the fork lug rod body.

The fixed core shaft penetrates through the shaft neck fork ear and is fixed.

The fixed mandrel is fixed by a vice.

The outer end of the screw rod is provided with an outer hexagonal structure matched with the wrench.

Has the advantages that: the application is convenient, and the processing quality and efficiency are improved.

Drawings

FIG. 1 is a schematic view of a journal assembly removal device;

fig. 2 is a schematic structural view of a split locking bush.

Detailed Description

Referring to fig. 1, the utility model discloses a journal subassembly dismounting device for break away from the fork ear-bar body 11 with the lantern ring 10, including fixed dabber 1, lower disk body 2, split type locking bush 3, cooperation axle 4, bolt 5, screw rod 6, upper disk body 7, connecting rod 8. The fixed mandrel 1 is used for fixing the journal fork lug 9. A plurality of connecting rods 8 are arranged between the lower disc body 2 and the upper disc body 7. And the lower disc body 2 is provided with a through hole, and the upper disc body 7 is provided with a threaded hole. After the screw rod 6 is connected with the upper disc body 7, the inner end part of the screw rod 6 is fixedly connected with the matching shaft 4 through the bolt 5.

During the disassembly operation, the fixed mandrel 1 is fixed on the vice after passing through the journal fork ear 9. The screw 6 is screwed to the outermost position. The lower disc body 2 is sleeved in the fork ear rod body 11 and does not sink the lantern ring 10 to reach the root of the shaft neck fork ear 9, and then the split type locking bush 3 is sequentially plugged between the round hole of the lower disc body 2 and the cylindrical surface of the fork ear rod body 11, so that the large end surface of the split type locking bush 3 directly clamps the end surface of the lantern ring 10. When the force is applied to screw the screw rod 6 inwards, the acting force is transmitted to the lower disc body 2 to directly drive the split type locking bush 3 to slowly move down, and then the lantern ring 10 naturally slides down.

Claims

1. A journal assembly removal device for disengaging a collar (10) from a yoke body (11), characterized by: the device comprises a support component, a split type locking bush (3) and a screw rod (6), wherein the support component is clamped on the inner end face of a lantern ring (10) through the split type locking bush (3) on the inner side, and a screw rod structure is formed by the screw hole of the support component and the screw rod (6) on the outer side.

2. The journal assembly remover of claim 1, wherein: the bracket component comprises a lower disc body (2) and an upper disc body (7), which are connected through a plurality of connecting rods (8).

3. The journal assembly remover of claim 2, wherein: the lower disc body (2) is provided with a through hole, the split type locking bushing (3) is of a partial annular structure, a step is arranged at one end, the inner end face of the step is clamped on the through hole, and the outer end face of the step is abutted to the lantern ring (10).

4. The journal assembly remover of claim 3, wherein: the number of the split locking bushings (3) is 3.

5. The journal assembly remover of claim 3, wherein: the upper disc body (7) is provided with a threaded hole, and the screw rod (6) is abutted against the end face of the fork ear rod body (11) after passing through the threaded hole.

6. The journal assembly remover of claim 5, wherein: the screw rod (6) is connected with the matching shaft (4) through the bolt (5), and the matching shaft (4) is abutted against the end face of the fork ear rod body (11).

7. The journal assembly dismounting device of any of claims 1-6, wherein: the shaft neck fixing device further comprises a fixing mandrel (1), and the fixing mandrel (1) penetrates through the shaft neck fork lug (9) and then is fixed.

8. The journal assembly remover of claim 7, wherein: the fixed mandrel (1) is fixed by a vice.

9. The journal assembly remover of claim 7, wherein: the outer end part of the screw rod (6) is provided with an outer hexagonal structure matched with a wrench.