阅读说明：本技术 轴流压缩机轮毂与动叶片轴的装配装置及装配方法 (Assembly device and assembly method for axial flow compressor hub and movable blade shaft ) 是由 关欣 舒鑫 王强 郭峰 于洋 蒋传杰 葛婧 周顺新 郝春娜 刘百宁 郭杨 于 2020-12-31 设计创作，主要内容包括：公开了轴流压缩机轮毂与动叶片轴的装配装置及装配方法,属于机械装配技术领域。该装配装置包括两个芯轴组件和旋转底座。两个分别芯轴组件包括芯轴本体和连接组件,一个芯轴本体通过连接组件连接于第一外止口,另一个芯轴本体通过连接组件连接于第二外止口,形成第一中间体。旋转底座包括连接接头和旋转驱动机构,其中一个芯轴本体能够连接至连接接头,旋转驱动机构能够驱动第一中间体从竖直状态沿顺时针旋转至水平状态。该装配方法基于该装配装置而实现。应用其进行轴流压缩机轮毂与动叶片装配时,能够使得装配过程安全、方便、高效,并且,还能够实现在装配过程中对轴流压缩机轮毂的平衡。(The utility model discloses an assembling device and an assembling method for a hub and a movable blade shaft of an axial flow compressor, belonging to the technical field of mechanical assembly. The assembling device comprises two mandrel assemblies and a rotating base. Two dabber subassemblies respectively include dabber body and coupling assembling, and a dabber body passes through coupling assembling to be connected in first outer tang, and another dabber body passes through coupling assembling to be connected in second outer tang, forms first midbody. The rotating base comprises a connecting joint and a rotating driving mechanism, wherein one mandrel body can be connected to the connecting joint, and the rotating driving mechanism can drive the first intermediate body to rotate clockwise from a vertical state to a horizontal state. The assembling method is realized based on the assembling device. When the axial flow compressor hub and the movable blade are assembled by using the axial flow compressor hub and the movable blade, the assembling process can be safe, convenient and efficient, and the balance of the axial flow compressor hub in the assembling process can also be realized.)

1. An assembling device of a hub and a movable blade shaft of an axial flow compressor comprises a 1-2-stage hub (2) and a 3-4-stage hub (3), wherein the 1-2-stage hub (2) and the 3-4-stage hub (3) are connected in a centering way, a first outer spigot (28) is formed at the free end of the 1-2-stage hub (2), and a second outer spigot (29) is formed at the free end of the 3-4-stage hub (3); it is characterized in that the assembling device of the axial flow compressor hub moving blade shaft comprises two mandrel components (5) and a rotating base (27),

the two separate mandrel assemblies (5) comprise mandrel bodies (9) and a connecting assembly, one mandrel body (5) is connected to the first outer spigot (28) through the connecting assembly, the other mandrel body (5) is connected to the second outer spigot (28) through the connecting assembly to form a first intermediate body, wherein the two mandrel bodies (9) are collinear and are positioned on one axis of the axial flow compressor hub;

the rotary base (27) comprises a connection joint (17) and a rotary drive mechanism (25), wherein one of the mandrel bodies (9) can be connected to the connection joint (17), and the rotary drive mechanism (25) can drive the first intermediate body to rotate clockwise from a vertical state to a horizontal state.

2. Assembly of a hub and a moving blade shaft of an axial compressor according to claim 1, characterized in that said connection assembly comprises a plurality of connection plates (10) and positioning plates (8),

one end of each of the plurality of connecting plates (10) is connected to the mandrel body (9), the other end of each of the plurality of connecting plates (10) is connected to the positioning plate (8), and the connecting plate (8) is connected to the first outer spigot (28) or the second outer spigot (29).

3. The axial compressor hub and moving blade shaft assembly according to claim 2, further comprising reinforcing ribs (7), the number of the reinforcing ribs (7) being the same as the number of the connecting plates (10), the reinforcing ribs (7) being connected between the spindle body (9) and the connecting plates (10).

4. The device for assembling a hub and a moving blade shaft of an axial flow compressor according to claim 2, characterized in that said two mandrel bodies (9) are collinear and on the central axis of said hub of an axial flow compressor.

5. The axial compressor hub and moving blade shaft assembly as set forth in claim 2, wherein said connecting plate (10) is provided at its largest diameter with a flange (12) facing said axial compressor hub, said first male end (28) and said second male end (29) being provided with an annular groove, respectively, said flange (12) having an inner diameter equal to an outer diameter of said annular groove, so that said two spindle assemblies (5) are fitted to each other through said flange (12) and said groove, respectively.

6. The device for assembling a hub and a moving blade shaft of an axial compressor according to claim 1, wherein said connecting joint (17) is provided with a housing space (18), and one of said spindle bodies (9) can be inserted into said housing space (18).

7. The axial compressor hub and moving blade shaft assembly as recited in claim 1, further comprising a rotating shaft (23), said rotating shaft (23) being fixedly connected to an output shaft of said rotary drive mechanism (25), said connecting joint (17) being fixedly connected to said rotating shaft (23).

8. The axial compressor hub and moving blade shaft assembly as recited in any one of claims 1 to 7, further comprising a neck bush (13),

the internal diameter of flaring axle sleeve (13) equals the diameter of dabber body (9), the external diameter of flaring axle sleeve (13) equals the internal diameter in child equipment holding hole, makes fixed the wearing and tearing of flaring axle sleeve (13) are established after dabber body (9), can also cooperate with the holding hole of child equipment.

9. The assembling method of the axial flow compressor hub and the movable blade shaft comprises a 1-2-stage hub (2) and a 3-4-stage hub (3), wherein the 1-2-stage hub (2) and the 3-4-stage hub (3) are connected in a centering mode, a first outer spigot (28) is formed at the free end of the 1-2-stage hub (2), and a second outer spigot (29) is formed at the free end of the 3-4-stage hub (3); the axial flow compressor hub moving blade shaft assembling method is realized based on the axial flow compressor hub moving blade shaft assembling device of any one of claims 1 to 7, and comprises the following steps:

hoisting a mandrel body (9) of one of said mandrel assemblies (5) to a connector fitting (17) according to any one of claims 1 to 8,

sequentially hoisting the 1-2-stage hub (2), the 3-4-stage hub (3) and the other mandrel component (5), and assembling to obtain a first intermediate;

starting the rotary driving mechanism (25) to enable the first intermediate body to rotate from a vertical state to a horizontal state along the clockwise direction, so that the first intermediate body in the horizontal state is obtained;

loading the first intermediate in the horizontal state onto a balance device, and balancing the first intermediate to obtain a balanced first intermediate;

loading the balanced first intermediate body onto a tire rotating device, and mounting a movable blade shaft on a hub of the balanced first intermediate body;

and (5) disassembling the two mandrel assemblies (5) to obtain an assembly body of the axial flow compressor hub and the movable blade shaft.

10. The assembling method of the axial flow compressor hub and the movable blade shaft comprises a 1-2-stage hub (2) and a 3-4-stage hub (3), wherein the 1-2-stage hub (2) and the 3-4-stage hub (3) are connected in a centering mode, a first outer spigot (28) is formed at the free end of the 1-2-stage hub (2), and a second outer spigot (29) is formed at the free end of the 3-4-stage hub (3); the axial flow compressor hub moving blade shaft assembling method is realized based on the axial flow compressor hub moving blade shaft assembling device of claim 8, and the axial flow compressor hub moving blade shaft assembling method comprises the following steps:

-lifting the mandrel body (9) of one of said mandrel assemblies (5) to the connecting joint (17) of claim 8,

sequentially hoisting the 1-2-stage hub (2), the 3-4-stage hub (3) and the other mandrel component (5), and assembling to obtain a first intermediate;

starting the rotary driving mechanism (25) to enable the first intermediate body to rotate from a vertical state to a horizontal state along the clockwise direction, so that the first intermediate body in the horizontal state is obtained;

respectively loading the neck expanding shaft sleeves (13) on the two mandrel bodies (9) to obtain a second intermediate body;

loading the second intermediate onto a balance device, and balancing the second intermediate to obtain a balanced second intermediate;

loading the balanced second intermediate body onto a tire rotating device, and mounting a movable blade shaft on a hub of the balanced second intermediate body;

and (3) disassembling the two mandrel assemblies (5) and the neck-expanding shaft sleeve (13) to obtain an assembly body of the axial flow compressor hub and the movable blade shaft.

Technical Field

The invention relates to the technical field of mechanical assembly, in particular to an assembly device and an assembly method for a hub and a moving blade shaft of an axial flow compressor.

Background

The WA1 wind tunnel compressor is a supersonic wind tunnel machine set which is independently designed and manufactured in China. The sinking and blowing group WA1 wind tunnel compressor is the first type of compressor in the group. Based on this unit rotor structure, need carry out balance check to the rotor machining precision, the rotor includes air inlet side axle, 1-2 level wheel hub, 3-4 level wheel hub, the side axle of giving vent to anger. In the assembling process, the 1-2-level hub and the 3-4-level hub are assembled firstly, the two-level hub is balanced independently after being assembled, and the two-level hub is placed on a tire rotating tool after being balanced independently to be provided with a movable blade shaft. In the process, the air inlet side shaft and the air outlet side shaft do not participate in assembly balance, and the 1-2-level wheel hub and the 3-4-level wheel hub need to be independently assembled and balanced. However, the conventional assembly device and the assembly method for the axial flow compressor hub and the moving blade shaft are not provided with the problems of assembly and balance of the 1-2 stage hub and the 3-4 stage hub blade shaft, so that the axial flow compressor hub and the moving blade shaft can be assembled.

Disclosure of Invention

In view of this, the invention provides an assembling device and an assembling method for a hub and a moving blade shaft of an axial flow compressor, when the assembling device is applied to the assembly of the hub and the moving blade shaft of the axial flow compressor, the assembling process can be safe, convenient and efficient, and the balance of the hub of the axial flow compressor in the assembling process can be realized. Thereby being more practical.

In order to achieve the first object, the present invention provides an assembling device for a hub and a rotor blade shaft of an axial flow compressor, comprising:

the invention provides an assembling device of a hub and a movable blade shaft of an axial flow compressor, wherein the hub of the axial flow compressor comprises a 1-2-stage hub (2) and a 3-4-stage hub (3), the 1-2-stage hub (2) and the 3-4-stage hub (3) are connected in a centering way, a first outer spigot (28) is formed at the free end of the 1-2-stage hub (2), and a second outer spigot (29) is formed at the free end of the 3-4-stage hub (3);

the assembling device of the axial flow compressor hub moving blade shaft comprises two mandrel assemblies (5) and a rotating base (27),

the two separate mandrel assemblies (5) comprise mandrel bodies (9) and a connecting assembly, one mandrel body (5) is connected to the first outer spigot (28) through the connecting assembly, the other mandrel body (5) is connected to the second outer spigot (28) through the connecting assembly to form a first intermediate body, wherein the two mandrel bodies (9) are collinear and are positioned on one axis of the axial flow compressor hub;

the rotary base (27) comprises a connection joint (17) and a rotary drive mechanism (25), wherein one of the mandrel bodies (9) can be connected to the connection joint (17), and the rotary drive mechanism (25) can drive the first intermediate body to rotate clockwise from a vertical state to a horizontal state.

The assembling device of the axial flow compressor hub and the movable blade shaft can be further realized by adopting the following technical measures.

Preferably, the connecting assembly comprises a plurality of connecting plates (10) and a positioning plate (8),

one end of each of the plurality of connecting plates (10) is connected to the mandrel body (9), the other end of each of the plurality of connecting plates (10) is connected to the positioning plate (8), and the connecting plate (8) is connected to the first outer spigot (28) or the second outer spigot (29).

Preferably, the assembling device of the axial flow compressor hub and the moving blade shaft further comprises reinforcing ribs (7), the number of the reinforcing ribs (7) is equal to that of the connecting plates (10), and the reinforcing ribs (7) are connected between the mandrel body (9) and the connecting plates (10).

Preferably, the two mandrel bodies (9) are collinear and are located on the central axis of the axial compressor hub.

Preferably, the connecting plate (10) is provided with a flange (12) facing the axial compressor hub at the maximum diameter thereof, the first male end (28) and the second male end (29) are respectively provided with an annular groove, and the inner diameter of the flange (12) is equal to the outer diameter of the annular groove, so that the two spindle assemblies (5) are mutually matched together through the flange (12) and the groove respectively.

Preferably, an accommodating space (18) is formed in the connecting joint (17), and one of the mandrel bodies (9) can penetrate through the accommodating space (18).

Preferably, the axial flow compressor hub and rotor blade shaft assembly further includes a rotating shaft (23), the rotating shaft (23) is fixedly connected to an output shaft of the rotary drive mechanism (25), and the connecting joint (17) is fixedly connected to the rotating shaft (23).

Preferably, the assembling device of the axial flow compressor hub and the moving blade shaft further comprises a neck expanding shaft sleeve (13),

the internal diameter of flaring axle sleeve (13) equals the diameter of dabber body (9), the external diameter of flaring axle sleeve (13) equals the internal diameter in child equipment holding hole, makes fixed the wearing and tearing of flaring axle sleeve (13) are established after dabber body (9), can also cooperate with the holding hole of child equipment.

In order to achieve the second object, the first method for assembling a hub and a moving blade shaft of an axial flow compressor according to the present invention comprises:

based on the assembling device of the axial flow compressor hub and the movable blade shaft, the invention provides an assembling method of the first axial flow compressor hub and the movable blade shaft, wherein the axial flow compressor hub comprises a 1-2-stage hub (2) and a 3-4-stage hub (3), the 1-2-stage hub (2) and the 3-4-stage hub (3) are connected in a centering way, a first outer spigot (28) is formed at the free end of the 1-2-stage hub (2), and a second outer spigot (29) is formed at the free end of the 3-4-stage hub (3); the assembling method of the axial flow compressor hub moving blade shaft is realized based on the assembling device of the axial flow compressor hub moving blade shaft provided by the invention, and the assembling method of the axial flow compressor hub moving blade shaft comprises the following steps:

hoisting the mandrel body (9) of one of the mandrel assemblies (5) to the connecting joint (17) provided by the invention,

sequentially hoisting the 1-2-stage hub (2), the 3-4-stage hub (3) and the other mandrel component (5), and assembling to obtain a first intermediate;

starting the rotary driving mechanism (25) to enable the first intermediate body to rotate from a vertical state to a horizontal state along the clockwise direction, so that the first intermediate body in the horizontal state is obtained;

loading the first intermediate in the horizontal state onto a balance device, and balancing the first intermediate to obtain a balanced first intermediate;

loading the balanced first intermediate body onto a tire rotating device, and mounting a movable blade shaft on a hub of the balanced first intermediate body;

and (5) disassembling the two mandrel assemblies (5) to obtain an assembly body of the axial flow compressor hub and the movable blade shaft.

In order to achieve the second object, the second method for assembling a hub and a moving blade shaft of an axial flow compressor according to the present invention comprises:

based on the assembling device of the axial flow compressor hub and the movable blade shaft, the invention provides a second assembling method of the axial flow compressor hub and the movable blade shaft, wherein the axial flow compressor hub comprises a 1-2-stage hub (2) and a 3-4-stage hub (3), the 1-2-stage hub (2) and the 3-4-stage hub (3) are connected in a centering manner, a first outer spigot (28) is formed at the free end of the 1-2-stage hub (2), and a second outer spigot (29) is formed at the free end of the 3-4-stage hub (3);

the assembling method of the axial flow compressor hub moving blade shaft comprises the following steps:

hoisting the mandrel body (9) of one of the mandrel assemblies (5) to the connecting joint (17),

sequentially hoisting the 1-2-stage hub (2), the 3-4-stage hub (3) and the other mandrel component (5), and assembling to obtain a first intermediate;

starting the rotary driving mechanism (25) to enable the first intermediate body to rotate from a vertical state to a horizontal state along the clockwise direction, so that the first intermediate body in the horizontal state is obtained;

respectively loading the neck expanding shaft sleeves (13) on the two mandrel bodies (9) to obtain a second intermediate body;

loading the second intermediate onto a balance device, and balancing the second intermediate to obtain a balanced second intermediate;

loading the balanced second intermediate body onto a tire rotating device, and mounting a movable blade shaft on a hub of the balanced second intermediate body;

and (3) disassembling the two mandrel assemblies (5) and the neck-expanding shaft sleeve (13) to obtain an assembly body of the axial flow compressor hub and the movable blade shaft.

When the assembling device of the axial flow compressor hub and the moving blade shaft provided by the first embodiment of the invention is used for assembling the axial flow compressor hub and the moving blade shaft, firstly, the mandrel body 9 of one mandrel component 5 is hoisted to the connecting joint 17 provided by the invention. Then, hoisting the 1-2 level hub 2, the 3-4 level hub 3 and the other mandrel component 5 in sequence, and assembling to obtain a first intermediate. Then, the rotation driving mechanism 25 is activated to rotate the first intermediate body clockwise from the vertical state to the horizontal state, resulting in the first intermediate body in the horizontal state. And then, loading the first intermediate in the horizontal state to balance equipment, and balancing the first intermediate to obtain the balanced first intermediate. And then, loading the balanced first intermediate body on a tire rotating device, and installing a movable blade shaft on a hub of the balanced first intermediate body. And then, disassembling the two mandrel assemblies 5 to obtain an assembly body of the hub and the movable blade shaft of the axial flow compressor. Therefore, when the axial flow compressor hub and the movable blade are assembled by using the axial flow compressor hub and the movable blade, the assembling process can be safe, convenient and efficient, and the balance of the axial flow compressor hub in the assembling process can be realized. In this embodiment, the mandrel component 5 is realized by adopting a process of integral processing after welding, and the coaxiality of the mandrel component 5 and the axial flow compressor hub after assembly can be ensured.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic structural view of an axial compressor hub according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first intermediate body formed by respectively loading a spindle assembly on two sides of a hub of an axial flow compressor according to an embodiment of the present invention;

FIG. 3 is a partially enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic cross-sectional structural view of a mandrel assembly according to an embodiment of the present invention;

FIG. 5 is a view from the direction B of FIG. 4;

FIG. 6 is a schematic illustration in partial cross-sectional view of a neck collar in accordance with an embodiment of the present invention;

FIG. 7 is a view taken along line C of FIG. 6;

FIG. 8 is a schematic cross-sectional view of a rotary base according to an embodiment of the present invention;

FIG. 9 is a view from direction D of FIG. 8;

fig. 10 is a schematic structural view when the first intermediate body is loaded on the connection joint of the swivel base and the first intermediate body is in an upright state;

FIG. 11 is a schematic view of the first intermediate body when it is loaded on the connection joint of the swivel base and the first intermediate body is in a horizontal state;

FIG. 12 is a flowchart illustrating steps of a first specific implementation of a method for assembling a hub and a moving blade shaft of an axial flow compressor according to an embodiment of the present invention;

fig. 13 is a flowchart illustrating steps of a first specific implementation of a method for assembling a hub and a moving blade shaft of an axial flow compressor according to an embodiment of the present invention.

Detailed Description

The invention aims to solve the problems in the prior art and provides an assembling device and an assembling method for a hub and a movable blade shaft of an axial flow compressor. Thereby being more practical.

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be given to the assembling device and the assembling method of the hub and the moving blade shaft of the axial flow compressor according to the present invention, with reference to the accompanying drawings and preferred embodiments, and the detailed description thereof. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, with the specific understanding that: both a and B may be included, a may be present alone, or B may be present alone, and any of the three cases can be provided.

Example one

Referring to fig. 1 to 5 and fig. 8 to 11, in an assembly device of a hub and a moving blade shaft of an axial flow compressor according to an embodiment of the present invention, the hub of the axial flow compressor includes a 1-2-stage hub 2 and a 3-4-stage hub 3, the 1-2-stage hub 2 is connected to the 3-4-stage hub 3 in a centering manner, a first outer spigot 28 is formed at a free end of the 1-2-stage hub 2, and a second outer spigot 29 is formed at a free end of the 3-4-stage hub 3. The assembling device of the axial flow compressor hub moving blade shaft comprises two mandrel assemblies 5 and a rotating base 27. The two respective mandrel assemblies 5 comprise mandrel bodies 9 and connecting assemblies, one mandrel body 5 is connected to the first outer spigot 28 through the connecting assembly, the other mandrel body 5 is connected to the second outer spigot 28 through the connecting assembly to form a first intermediate body, and the two mandrel bodies 9 are collinear and are located on one axis of the axial flow compressor hub. The rotating base 27 includes a connecting joint 17 and a rotation driving mechanism 25, wherein one of the spindle bodies 9 can be connected to the connecting joint 17, and the rotation driving mechanism 25 can drive the first intermediate body to rotate clockwise from a vertical state to a horizontal state.

When the assembling device of the axial flow compressor hub and the moving blade shaft provided by the first embodiment of the invention is used for assembling the axial flow compressor hub and the moving blade shaft, firstly, the mandrel body 9 of one mandrel component 5 is hoisted to the connecting joint 17 provided by the invention. Then, hoisting the 1-2 level hub 2, the 3-4 level hub 3 and the other mandrel component 5 in sequence, and assembling to obtain a first intermediate. Then, the rotation driving mechanism 25 is activated to rotate the first intermediate body clockwise from the vertical state to the horizontal state, resulting in the first intermediate body in the horizontal state. And then, loading the first intermediate in the horizontal state to balance equipment, and balancing the first intermediate to obtain the balanced first intermediate. And then, loading the balanced first intermediate body on a tire rotating device, and installing a movable blade shaft on a hub of the balanced first intermediate body. And then, disassembling the two mandrel assemblies 5 to obtain an assembly body of the hub and the movable blade shaft of the axial flow compressor. Therefore, when the axial flow compressor hub and the movable blade are assembled by using the axial flow compressor hub and the movable blade, the assembling process can be safe, convenient and efficient, and the balance of the axial flow compressor hub in the assembling process can be realized. In this embodiment, the mandrel component 5 is realized by adopting a process of integral processing after welding, and the coaxiality of the mandrel component 5 and the axial flow compressor hub after assembly can be ensured.

Wherein, the coupling assembling includes a plurality of connecting plates 10 and locating plate 8. One end of each of the plurality of connecting plates 10 is connected to the mandrel body 9, the other end of each of the plurality of connecting plates 10 is connected to the positioning plate 8, and the connecting plate 8 is connected to the first male end 28 or the second male end 29. In this embodiment, the number of the connecting plates 10 is 3, the connecting plates 10 are arranged at an angle of 120 degrees, and the specifications of the connecting plates 10 are the same, at this time, the acting force applied to the spindle body 9 by the connecting plates 10 is the same, and the distance between the spindle body 9 and the positioning plate 8 is also the same, so that the spindle body 9 can be ensured to be located on the axis of the axial flow compressor hub.

The assembling device for the axial flow compressor hub and the movable blade shaft further comprises reinforcing ribs 7, the number of the reinforcing ribs 7 is the same as that of the connecting plates 10, and the reinforcing ribs 7 are connected between the mandrel body 9 and the connecting plates 10. In this case, the reinforcing ribs 7 support the mandrel body 9, so that the mandrel body 9 can be prevented from deviating from the axial lead of the axial flow compressor hub or bending under the action of bending stress.

Wherein, two dabber bodies 9 collineates and is in axial compressor wheel hub's axis. In this case, when the rotation driving mechanism 25 drives the first intermediate body to rotate clockwise from the vertical state to the horizontal state, the axial flow compressor hub can be prevented from being deformed due to unbalanced stress. In addition, because the two axis bodies 9 are collinear, the separation between the 1-2-stage hub 2 and the 3-4-stage hub 3 caused by unbalanced stress in the process of balancing the axial flow compressor hub can be avoided.

Wherein the connecting plate 10 is provided with a flange 12 facing the axial compressor hub at the position where the diameter thereof is the largest, the first male end 28 and the second male end 29 are respectively provided with an annular groove, and the inner diameter of the flange 12 is equal to the outer diameter of the annular groove, so that the two spindle assemblies 5 are mutually fitted together through the flange 12 and the groove, respectively. In this case, the two spindle bodies can be aligned by the fitting relationship between the flange 12 and the groove when the two spindle assemblies 5 are respectively connected to the hubs of the axial flow compressor.

Wherein, the connection joint 17 is provided with an accommodating space 18, and one of the mandrel bodies 9 can penetrate through the accommodating space 18. In this case, after the mandrel body 9 is connected to the connecting joint 17, the mandrel body 9 is stopped by the outer wall of the connecting joint 17 to ensure the connection strength between the mandrel body 9 and the connecting joint 17.

The assembling device of the axial flow compressor hub and the movable blade shaft further comprises a rotating shaft 23, the rotating shaft 23 is fixedly connected to an output shaft of a rotary driving mechanism 25, and the connecting joint 17 is fixedly connected to the rotating shaft 23. In this case, the rotation of the connecting joint 17 can be realized by driving the rotation shaft 23 to rotate by an external force, and then the first intermediate body is driven to rotate, so that the first intermediate body can rotate clockwise from the vertical state to the horizontal state.

Referring to fig. 6 and 7, the assembling device of the axial compressor hub and the moving blade shaft further comprises a neck expanding sleeve 13. The internal diameter of the neck expanding shaft sleeve 13 is equal to the diameter of the mandrel body 9, and the external diameter of the neck expanding shaft sleeve 13 is equal to the internal diameter of the tire rotating equipment accommodating hole, so that the neck expanding shaft sleeve 13 can be matched with the accommodating hole of the tire rotating equipment after being fixedly arranged on the mandrel body 9 in a penetrating mode. Under the normal condition, influenced by the size and the dead weight of the axial compressor hub, the inner diameter of the connection joint 17 is usually smaller, at this time, in order to ensure that the spindle body 9 can be accommodated in the accommodating space 18 of the connection joint 17, the machining size of the spindle body 9 is usually designed to be relatively smaller, at this time, because the accommodating hole of the tire rotating equipment is larger, therefore, in order to enable the first intermediate body to be capable of being matched with the accommodating hole of the tire rotating equipment, the neck expanding sleeve 13 needs to be installed on the spindle body 9, at this time, after the neck expanding sleeve 13 is assembled with the spindle body 9, a certain interference magnitude is usually needed to be provided, so as to avoid the relative rotation between the neck expanding sleeve 13 and the spindle body 9, at this time, a second intermediate body is formed. In this case, in order to ensure the connection strength between the second intermediate body and the tire rotating equipment, 4 symmetrical platforms may be cut on the outer surface of the neck expanding sleeve 13, and threaded holes may be cut on the 4 symmetrical platforms, i.e., the second intermediate body and the tire rotating equipment may be assembled together by using a bolt-on method, which is simple and easy to assemble.

Example two

Referring to fig. 12, based on the above assembling device for the hub and the moving blade shaft of the axial flow compressor, the present invention provides a method for assembling the hub and the moving blade shaft of the axial flow compressor, the hub of the axial flow compressor includes a 1-2-stage hub 2 and a 3-4-stage hub 3, the 1-2-stage hub 2 and the 3-4-stage hub 3 are connected in a centering manner, a first external spigot 28 is formed at the free end of the 1-2-stage hub 2, and a second external spigot 29 is formed at the free end of the 3-4-stage hub 3; the assembling method of the axial flow compressor hub moving blade shaft is realized based on the assembling device of the axial flow compressor hub moving blade shaft provided by the invention, and the assembling method of the axial flow compressor hub moving blade shaft comprises the following steps:

step S101: the mandrel body 9 of one of the mandrel assemblies 5 is hoisted to the connection joint 17 provided by the present invention.

Step S102: sequentially hoisting a 1-2-stage hub 2, a 3-4-stage hub 3 and another mandrel component 5, and assembling to obtain a first intermediate.

Step S103: the rotation driving mechanism 25 is started to rotate the first intermediate body clockwise from the vertical state to the horizontal state, and the first intermediate body in the horizontal state is obtained.

Step S104: and loading the first intermediate in the horizontal state to balance equipment, and balancing the first intermediate to obtain the balanced first intermediate.

Step S105: and loading the balanced first intermediate body onto a tire rotating device, and mounting a movable blade shaft on a hub of the balanced first intermediate body.

Step S106: and (5) disassembling the two mandrel assemblies 5 to obtain an assembly body of the hub and the movable blade shaft of the axial flow compressor.

Under this embodiment, it is usually required that the size of the mandrel body 9 just can satisfy the connection stability with the connection joint 17 at the same time, and can ensure the connection stability of the mandrel body 9 and the tire rotating equipment, that is, the size of the mandrel body 9 and the size of the connection joint 17 need to be designed according to the size of the accommodating hole of the tire rotating equipment. When the method is used for assembling the axial flow compressor hub and the movable blade, the assembling process can be safe, convenient and efficient, and the balance of the axial flow compressor hub in the assembling process can be realized.

EXAMPLE III

Based on the assembling device of the axial flow compressor hub and the movable blade shaft, the invention provides a second assembling method of the axial flow compressor hub and the movable blade shaft, the axial flow compressor hub comprises a 1-2-stage hub 2 and a 3-4-stage hub 3, the 1-2-stage hub 2 and the 3-4-stage hub 3 are connected in a centering way, a first outer spigot 28 is formed at the free end of the 1-2-stage hub 2, and a second outer spigot 29 is formed at the free end of the 3-4-stage hub 3.

The assembling method of the axial flow compressor hub movable blade shaft provided by the embodiment of the invention comprises the following steps:

step S201: the connecting joint 17 to which the mandrel body 9 of one of the mandrel assemblies 5 is hoisted.

Step S202: sequentially hoisting a 1-2-stage hub 2, a 3-4-stage hub 3 and another mandrel component 5, and assembling to obtain a first intermediate.

Step S203: the rotation driving mechanism 25 is started to rotate the first intermediate body clockwise from the vertical state to the horizontal state, and the first intermediate body in the horizontal state is obtained.

Step S204: and respectively loading neck expanding shaft sleeves 13 on the two mandrel bodies 9 to obtain a second intermediate body.

Step S205: and loading the second intermediate onto balance equipment, and balancing the second intermediate to obtain a balanced second intermediate.

Step S206: loading the balanced second intermediate body onto a tire rotating device, and mounting a movable blade shaft on a hub of the balanced second intermediate body;

step S207: and (3) disassembling the two mandrel assemblies 5 and the neck-expanding shaft sleeve 13 to obtain an assembly body of the axial flow compressor hub and the movable blade shaft.

Under the condition of the present embodiment, even in the case where the inner diameter of the connection joint 17 is generally small due to the influence of the size and the self weight of the hub itself of the axial flow compressor, the mandrel body 9 can be made to fit the connection joint 17 by designing the size of the mandrel body 9 to be small. Thereafter, in order to enable the first intermediate body to be matched with the accommodating hole of the tire rotating device, the neck expanding sleeve 13 needs to be installed on the mandrel body 9, at this time, after the neck expanding sleeve 13 is assembled with the mandrel body 9, a certain interference magnitude is generally needed to be provided, so as to avoid relative rotation between the neck expanding sleeve 13 and the mandrel body 9, and at this time, a second intermediate body is formed. In this case, in order to ensure the connection strength between the second intermediate body and the tire rotating equipment, 4 symmetrical platforms may be cut on the outer surface of the neck expanding sleeve 13, and threaded holes may be cut on the 4 symmetrical platforms, i.e., the second intermediate body and the tire rotating equipment may be assembled together by using a bolt-on method, which is simple and easy to assemble.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.