CN-121989037-A - Assembling device and method for shaft body

CN121989037ACN 121989037 ACN121989037 ACN 121989037ACN-121989037-A

Abstract

The application belongs to the technical field of mechanical assembly, and particularly relates to an assembly device and method for a shaft body. The shaft body comprises a first shaft section, a middle shaft section and a second shaft section which are sequentially arranged, and the assembly device for the shaft body comprises a base, a supporting structure and a bracket assembly. The bearing structure sets up in the base, and bearing structure is used for supporting jackshaft section. Two bracket components are respectively movably arranged on two opposite sides of the supporting structure, one bracket component is used for placing the first shaft section, and the other bracket component is used for placing the second shaft section. Wherein the carriage assembly moves toward the support structure to axially interface the first shaft section or the second shaft section with the intermediate shaft section. According to the application, the shaft body of the axial flow compressor is horizontally assembled through the assembling device, so that the assembly is simple and the operation is convenient.

Inventors

ZHANG YONG
NIU DAN
XU DONGFANG
YU GUANGYI
LIU PENG
CUI YONGXIN
JIANG WENJIA
LIU BAINING
LIU JIAHUI
LIU QIANXIANG
SHAO QI
CONG HANSONG
ZHOU SHUNXIN
MOU JINHUI
Lv Naichen
WANG YANFEI
YU YANG
WANG SHENGCHI
YANG YANG
FU YONGLIANG

Assignees

沈阳透平机械股份有限公司
沈鼓集团股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260210

Claims (10)

1. An assembly device for axis body, the axis body includes first axle segment, jackshaft section and the second axle segment that sets gradually, its characterized in that, an assembly device for axis body includes: A base; The support structure is arranged on the base and used for supporting the intermediate shaft section; The bracket assemblies are respectively and movably arranged on two opposite sides of the supporting structure, one bracket assembly is used for placing the first shaft section, and the other bracket assembly is used for placing the second shaft section; Wherein the carriage assembly moves toward the support structure to axially interface the first shaft section or the second shaft section with the intermediate shaft section.
2. The fitting device for a shaft of claim 1, wherein the bracket assembly comprises: the movable chassis is movably arranged on the base; The support assembly comprises a support frame, an adjustable pad and a support piece, wherein the support frame, the adjustable pad and the support piece are arranged in a stacked mode, the support frame is arranged on the movable chassis, the support piece is used for placing the first shaft section or the second shaft section, and the adjustable pad is used for driving the support piece to lift relative to the support frame.
3. The fitting device for a shaft according to claim 2, wherein said support comprises: a bracket body including a guide groove; The first core body and the second core body are arranged at intervals and respectively penetrate through the bracket body; the first rolling bearings and the second rolling bearings are sleeved on the first core body and the second core body in a one-to-one correspondence manner; The bracket assembly further comprises a guide pin, one end of the guide pin is connected with the support frame, and the other end of the guide pin stretches into the guide groove and is at least used for guiding lifting of the support piece relative to the support frame.
4. The fitting device for a shaft of claim 2, wherein the adjustable pad comprises: the support body is arranged on the support frame and comprises a containing cavity; the bolt penetrates through the supporting body, and one end of the bolt extends into the accommodating cavity; The sliding block is arranged in the accommodating cavity and is in threaded connection with the bolt, and a first inclined surface is arranged on one side of the sliding block, which is away from the supporting frame; The inclined block is arranged on the sliding block and is in butt joint with the inner wall of the supporting body, the inclined block comprises a second inclined surface, the second inclined surface is in contact with the first inclined surface, and the supporting piece is at least arranged on the inclined block; When the sliding block slides along the bolt, the first inclined surface slides relative to the second inclined surface, so that the inclined block is lifted relative to the supporting body, and the supporting piece is driven to lift relative to the supporting frame.
5. The assembly device for the shaft body according to claim 2, wherein a first positioning key is arranged on one side of the movable chassis, which is away from the supporting component, and the first positioning key is matched with the first positioning part of the base through a spigot for positioning the bracket component and the base.
6. The fitting device for a shaft according to claim 1, wherein said support structure comprises: The bracket is arranged on the base, and one side of the bracket, which is away from the base, is provided with a mounting key; The mounting frame is arranged on the support, a key groove is formed in one side, close to the support, of the mounting frame, and the key groove is clamped with the mounting key; The first support block and the second support block are arranged on the mounting frame at intervals, a first inclined plane and a second inclined plane are respectively arranged on opposite sides of the first support block and the second support block, and the first inclined plane and the second inclined plane are used for being abutted to the intermediate shaft section; The first jackscrew and second jackscrew, first jackscrew set up in first supporting shoe deviates from one side of second supporting shoe, the second jackscrew set up in second supporting shoe deviates from one side of first supporting shoe.
7. The assembly device for a shaft of claim 6, wherein the first and second inclined surfaces are provided with shims thereon for protecting the intermediate shaft section.
8. The assembly device for a shaft as claimed in claim 6, wherein, One side of the support, which is away from the mounting frame, is provided with a second positioning key, and the second positioning key is matched with a second positioning part of the base through a spigot for positioning the support.
9. The fitting device for a shaft body according to claim 1, further comprising: The first guide rod is arranged on one side of the intermediate shaft section, close to the first shaft section, and extends out of the intermediate shaft section, and corresponds to a first through hole formed in the first shaft section; The second guide rod is arranged on one side of the intermediate shaft section, which is close to the second shaft section, and extends out of the intermediate shaft section, and corresponds to a second through hole formed in the second shaft section; The first guide rod is inserted into the first through hole when the first shaft section is axially abutted with the intermediate shaft section, and the second guide rod is inserted into the second through hole when the second shaft section is axially abutted with the intermediate shaft section.
10. A method for assembling a shaft body using the assembling apparatus according to any one of claims 1 to 9, characterized in that the method for assembling a shaft body comprises the steps of: placing the intermediate shaft section on the support structure; Placing the first shaft section on one of the bracket assemblies and the second shaft section on the other bracket assembly; The carriage assembly that positions the first shaft section moves toward the support structure to axially interface the first shaft section with the intermediate shaft section; the bracket assembly, which positions the second shaft section, is moved toward the support structure to axially interface the second shaft section with the intermediate shaft section.

Description

Assembling device and method for shaft body Technical Field The application belongs to the technical field of mechanical assembly, and particularly relates to an assembly device and method for a shaft body. Background The rotor of an axial compressor is quite different from a conventional axial or centrifugal compressor. For example, the main shaft is of a three-section shaft assembly type structure, and the length of the main shaft is 7.599 meters. The whole main shaft is formed by connecting and assembling a main shaft left section, a main shaft middle section, a main shaft right section and the like through a pull rod and a nut, wherein the weight of the main shaft left section is 2675KG, the weight of the main shaft middle section is 31225KG, and the weight of the main shaft right section is 4561KG. The main shaft assembly of the axial flow compressor adopts a vertical building block stacking mode to assemble all parts of the main shaft, namely, the main shaft assembly is carried out according to the sequence of the right section of the main shaft, the middle section of the main shaft and the left section of the main shaft. The assembly platform of main shaft assembly is about 12 meters in height, and this height is similar to rotor workshop one deck overhead traveling crane height, if assembly fitter carries out the assembly operation of main shaft each piece on this height, the degree of difficulty of assembly is big and the operation security is poor. Because the main shaft weight is big, for example, is 36098.8KG, in the assembly process of main shaft each piece, assembly platform needs to guarantee that the main shaft does not take place to empty. Therefore, a tensioning device is required to be added to each step of the main shaft in the assembly process, and the strength requirement on the assembly platform is very strict. After the vertical assembly of the main shaft is completed, the main shaft needs to be turned to be in a horizontal state, the strength requirement on the assembly platform in the rotation process is very strict, and the auxiliary tool device in the assembly process needs to be ensured to be convenient to disassemble, so that the problem is difficult to apply. Disclosure of Invention The present application is directed to solving at least one of the technical problems existing in the related art. Accordingly, a first aspect of the present application provides an assembly device for a shaft. A second aspect of the application provides an assembly method for a shaft. According to a first aspect of an embodiment of the application, an assembly device for a shaft body is provided, wherein the shaft body comprises a first shaft section, a middle shaft section and a second shaft section which are sequentially arranged, the assembly device for the shaft body comprises a base, a supporting structure and bracket components, the supporting structure is arranged on the base and used for supporting the middle shaft section, the bracket components are respectively and movably arranged on two opposite sides of the supporting structure, one bracket component is used for placing the first shaft section, the other bracket component is used for placing the second shaft section, and the bracket components move towards the supporting structure so as to enable the first shaft section or the second shaft section to be in axial butt joint with the middle shaft section. In one possible implementation mode, the bracket assembly comprises a movable chassis, a supporting assembly and a supporting assembly, wherein the movable chassis is movably arranged on the base, the supporting assembly is arranged on the movable chassis at intervals, the supporting assemblies are sequentially arranged along the axial direction of the shaft body, the supporting assembly comprises a supporting frame, an adjustable pad and a supporting piece, the supporting frame is arranged on the movable chassis in a stacked mode, the supporting piece is used for placing the first shaft section or the second shaft section, and the adjustable pad is used for driving the supporting piece to lift relative to the supporting frame. In one possible implementation mode, the support piece comprises a support body, a first core body and a second core body, wherein the support body comprises a guide groove, the first core body and the second core body are arranged at intervals and respectively penetrate through the support body, a first rolling bearing and a second rolling bearing are sleeved on the first core body and the second core body in a one-to-one correspondence mode, the support piece further comprises a guide pin, one end of the guide pin is connected with the support frame, and the other end of the guide pin extends into the guide groove and is at least used for guiding lifting of the support piece relative to the support frame. In one possible implementation mode, the adjustable pad comprises a support body, a bolt, a sliding block