Totally-enclosed packaging device for low-pressure rotor of steam turbine

Abstract

The utility model discloses a totally-enclosed packaging device for a low-pressure rotor of a steam turbine. The totally-enclosed packaging device comprises a rectangular base formed by welding H-shaped steel, two supporting plates symmetrically arranged in the length direction of the base, and a combined housing for shielding the rotor, the supporting plate is longitudinally welded on the base, and the lifting lug plates are symmetrically welded at the front and rear ends of the supporting plate; a lifting ring is arranged at the top of the lifting lug plate; the supporting plate corresponds to a shaft neck of the rotor bearing, and a locking structure for fixing the shaft neck is arranged at the top of the supporting plate; the combined housing comprises an upper housing and a lower housing detachably connected with the upper housing, and the lower housing is fixed on the base; after the rotor is packaged in the combined housing, the upper housing and the lower housing are sealed through a sizing rubber strip and are connected through a spring lock catch. The device has the advantages of being convenient to disassemble and assemble, wide in application range, capable of effectively protecting products, capable of being repeatedly used and capable of effectively reducing use cost.

Description

Technical Field

[0001] The utility model relates to the field of mechanical product packaging, in particular to a fully enclosed steam turbine low-pressure rotor packaging device. Background Art

[0002] As a large-scale mechanical product, steam turbines are usually delivered in parts. They are pre-assembled in the production plant, disassembled into various parts, and transported to the power plant for installation.

[0003] Steam turbine parts are generally large in size and heavy in weight. The rotor is a precision-machined product that requires high packaging and protection. If the rotor is scratched, rusted, or deformed during transportation and storage, it will affect the service life of the rotor or cause damage to the rotor, directly affecting the safe and stable operation of the unit. The traditional packaging mode of existing steam turbine low-pressure rotors has the following problems:

[0004] The adoption of this technical measure has the advantages of easy disassembly and assembly, wide application range, effective product protection, reuse and effective reduction of use costs.

[0005] 1. The traditional packaging mode requires the use of special lifting tools, which has poor applicability;

[0006] 2. Traditional packaging models often use cushions and pressure wood and rely on cushions to tighten, which has low reinforcement strength; traditional packaging models usually have the problem of partially exposing the product, resulting in low product protection. In actual use, due to the low reinforcement strength, the product's protection is not high and cannot effectively protect the product.

[0007] 3. The traditional packaging mode mostly uses bolts to fix the upper and lower half shells, which has the problems of low packaging efficiency and on-site unpacking efficiency.

[0008] 4. Traditional steel-wood or all-wood structure packaging boxes have low recyclability and high usage costs. Summary of the invention

[0009] The purpose of the utility model is to address the deficiencies in the prior art and to propose a fully enclosed steam turbine low-pressure rotor packaging device which is easy to disassemble and assemble, can effectively protect the product, can be reused and can effectively reduce the use cost.

[0010] The technical purpose of the utility model is achieved through the following technical solutions:

[0011] A fully enclosed steam turbine low-pressure rotor packaging device, comprising a rectangular base welded with H-shaped steel, two support plates symmetrically arranged along the length direction of the base, and a combined cover shell for covering the rotor; the support plate is longitudinally welded to the base, and ear plates are symmetrically welded at the front and rear ends thereof; a lifting ring is provided on the top of the ear plate; the support plate corresponds to the shaft neck of the rotor bearing, and a locking structure for fixing the shaft neck is provided on the top of the support plate; the combined cover shell comprises an upper shell and a lower shell detachably connected to the upper shell, and the lower shell is fixed to the base; after the combined cover shell encapsulates the rotor therein, the upper shell and the lower shell are sealed by a shaping rubber strip and connected by a spring lock.

[0012] The support plate includes a first support plate and a second support plate arranged opposite to each other; the locking structure includes a first arc-shaped groove and a second arc-shaped groove arranged on the top of the first support plate and the second support plate, and a first pressure cover and a second pressure cover matched with the first arc-shaped groove and the second arc-shaped groove, and the first pressure cover and the second pressure cover are provided with a first pressure cover groove and a second pressure cover groove matched with the first arc-shaped groove and the second arc-shaped groove; the first pressure cover and the second pressure cover are connected to the top of the first support plate and the second support plate by bolts.

[0013] The first arc-shaped groove and the second arc-shaped groove are respectively welded with arc-shaped steel plates of the same shape; the first gland groove and the second gland groove are respectively welded with arc-shaped aluminum plates of the same shape.

[0014] The first support plate and the second support plate are respectively provided with a tightening structure on the left and right sides of the rotor body.

[0015] The tightening structure includes a tightening bolt, a nut and a copper sleeve; through holes for the tightening bolt to pass through are provided on the first support plate and the second support plate corresponding to the rotor body, and nuts are welded on the left side of the first support plate and the right side of the second support plate corresponding to the through holes; after the end of the tightening bolt passes through the nut and the through hole, a copper sleeve is installed on its end, and the copper sleeve is used to abut one side of the rotor body.

[0016] The top end of the ear plate extends upward beyond the top of the support plate, and the opposite side of the ear plate is connected to the top of the support plate through a first lifting reinforcement rib plate; the lower end of the ear plate passes through the rectangular through hole of the upper flange plate of the base and is welded to the lower flange plate of the base, and is connected between the inner side of the ear plate and the web of the base through a second lifting reinforcement rib plate.

[0017] A reinforcing rib is welded between the upper flange plate, the lower flange plate and the web of the base; the reinforcing rib is provided with a through hole for connecting the wire rope. The upper shell and the lower shell are multi-section structures, the lower shell includes a lower shell middle section fixedly mounted on the base between the first support plate and the second support plate, a lower shell left section welded on the left side of the first support plate, and a lower shell right section welded on the right side of the second support plate; the upper shell includes an upper shell middle section corresponding to the lower shell middle section, an upper shell left section corresponding to the lower shell left section, and an upper shell right section corresponding to the lower shell right section; when the rotor is fixedly placed in the lower shell, the upper shell left section, the upper shell middle section and the upper shell right section of the upper shell are respectively locked with the lower shell left section, the lower shell middle section and the lower shell right section by spring locks.

[0018] A plurality of lifting ears are symmetrically arranged on the front and rear sides of the middle section of the upper shell, and two hooks for lifting are respectively arranged on the upper sides of the left section and the right section of the upper shell.

[0019] Square operating platforms are provided at both ends of the middle section of the upper shell and corresponding to the top of the supporting plate.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model includes a rectangular base welded by H-shaped steel, two support plates symmetrically arranged along the length direction of the base, and a combined cover shell for covering the rotor; the support plate is welded to the base longitudinally, and ear plates are symmetrically welded at the front and rear ends thereof; a lifting ring is provided on the top of the ear plate; the support plate corresponds to the shaft neck of the rotor bearing, and a locking structure for fixing the shaft neck is provided on the top of the support plate; the combined cover shell includes an upper shell and a lower shell detachably connected to the upper shell, and the lower shell is fixed to the base; after the combined cover shell encapsulates the rotor therein, the upper shell and the lower shell are sealed by a shaping rubber strip and connected by a spring lock.

[0022] The utility model has the advantages of being easy to disassemble and assemble, having a wide range of applications, being able to effectively protect products, being able to be reused, and effectively reducing use costs.

[0023] 2. The top of the support plate of the utility model is provided with a locking structure for locking the journal of the rotor bearing. This technical measure can lock the rotor bearing, and then lock the rotor, to prevent the rotor from moving up and down and left and right in the combined cover, so that the rotor can be stably placed in the combined cover, which can effectively improve the protection of the product, thereby effectively protecting the product.

[0024] 3. The first support plate and the second support plate of the utility model are respectively provided with a tightening structure for tightening the left and right sides of the rotor body. With this technical measure, bolts and copper sleeves are used to tighten the two sides of the rotor body (tightening the blade root position of the last stage blade of the rotor); further preventing the rotor from moving back and forth in the combined cover; and further enabling the rotor to be stably placed in the combined cover, which can effectively improve the protection of the product, thereby effectively protecting the product.

[0025] 4. The top of the ear plate of the utility model extends upward beyond the top of the support plate, and the opposite side of the ear plate is connected to the top of the support plate through the first lifting reinforcement rib plate; the lower end of the ear plate passes through the rectangular through hole of the upper flange plate of the base and is welded to the lower flange plate of the base, and is connected between the inner side of the ear plate and the web of the base through the second lifting reinforcement rib plate. By providing the first lifting reinforcement rib plate and the second lifting reinforcement rib plate, the connection strength between the ear plate and the base and the support plate can be improved, thereby effectively improving the lifting strength.

[0026] 5. The front and rear sides of the middle section of the upper shell of the utility model are symmetrically provided with a plurality of lifting ears, and the upper sides of the left section and the right section of the upper shell are respectively provided with two hooks for lifting. The adoption of this technical measure facilitates disassembly and lifting.

[0027] 6. The two ends of the middle section of the upper shell of the utility model and the top of the corresponding support plate are provided with square operation platforms, and the left side of the left section of the lower shell and the right side of the right section of the lower shell are respectively provided with square structures corresponding to the square operation platforms. By setting up the square operation platform, it is convenient for workers to perform packaging operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the utility model;

[0029] Figure 2 yes Figure 1 Assembly drawing of

[0030] Figure 3 It is a schematic diagram of the structure of the base, the support plate and the lug plate;

[0031] Figure 4 It is a structural diagram of the base and the lug plate;

[0032] Figure 5 It is a schematic diagram of the structure of the base;

[0033] Figure 6 It is a structural diagram of the lug plate;

[0034] Figure 7 yes Figure 1 A schematic diagram of the structure of the middle spring lock;

[0035] Reference numerals: 1—base; 11—upper flange plate; 12—lower flange plate; 13—web plate; 14—reinforcement rib plate; 15—rectangular through hole;

[0036] 2—support plate; 21—first support plate; 211—first arc-shaped groove; 212—first gland; 213—first gland groove;

[0037] 22—second support plate; 221—second arc-shaped groove; 222—second gland; 223—second gland groove; 23—reinforcement plate;

[0038] 3—combined cover; 31—upper shell; 311—middle section of upper shell; 3111—lifting lug; 3112—square operating platform; 312—left section of upper shell; 313—right section of upper shell;

[0039] 32—lower housing; 321—middle section of the lower housing; 322—left section of the lower housing; 323—right section of the lower housing;

[0040] 33—spring lock; 331—lock hook; 332—spring lock base; 333—spring; 334—spring lock ring; 335—spring lock handle;

[0041] 34—molded rubber strip seal; 35—hook;

[0042] 4—lifting ear plate; 41—lifting ring; 42—first lifting reinforcement plate; 43—second lifting reinforcement plate; 44—escalator;

[0043] 5—tightening structure; 51—tightening bolt; 52—nut; 53—copper sleeve;

[0044] 6—rotor; 61—rotor body; 62—rotor bearing. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0048] like Figure 1 — Figure 7 As shown, a fully enclosed steam turbine low-pressure rotor packaging device comprises a rectangular base 1 welded by H-shaped steel, two support plates 2 symmetrically arranged along the length direction of the base 1, and a combined cover shell 3 for covering the rotor 6; the support plate 2 is longitudinally welded to the base 1, and ear plates 4 are symmetrically welded at the front and rear ends thereof; a lifting ring 41 is provided on the top of the ear plate 4; the support plate 2 corresponds to the shaft neck of the rotor bearing 62, and a locking structure for fixing the shaft neck is provided on the top of the support plate 2; the combined cover shell 3 comprises an upper shell 31 and a lower shell 32 detachably connected to the upper shell 31, and the lower shell 32 is fixed on the base 1; after the combined cover shell 3 encapsulates the rotor 6 therein, the upper shell 31 and the lower shell 32 are sealed by a shaping rubber strip 34, and are connected by a spring lock 33. Compared with the packaging mode of fixing the combined cover shell 3 by bolt connection, the combined cover shell 3 of this practical type is connected by a spring lock 33, which improves the packaging efficiency and on-site unpacking efficiency; the rotor bearing 62 is locked by the locking structure on the support plate 2 to prevent the rotor 6 from moving in the combined cover shell 3; at the same time, the rotor 6 is completely placed in the combined cover shell 3, which can effectively improve the protection of the product. During lifting, the hook of the ordinary lifting device can be connected through the lifting ring 41 on the ear plate 4, which has a wide range of applications; at the same time, compared with the packaging mode of lifting by the traditional base 1, the ear plate 4 of this packaging device forms a whole with the support plate 2 and the base 1, and the lifting strength is guaranteed. In actual use, the combined cover shell 3 can be reused after disassembly and assembly, which can effectively reduce the cost of use. The adoption of this technical measure has the advantages of easy disassembly and assembly, wide range of application, effective protection of products, reuse and effective reduction of use costs.

[0049] like Figure 1 — Figure 5As shown, the base 1 is rectangular as a whole and is welded with H-shaped steel. The length of the bottom plate is changed according to the length of the rotor 6. The width is 3 to 4 meters, so that the base 1 can be placed on the vehicle plate of the transport vehicle. In actual use, the H-shaped steel of the base 1 includes an upper flange plate 12, a lower flange plate 13, and a web plate 14 arranged between the upper flange plate 12 and the lower flange plate 13. A reinforcing rib plate 11 is welded between the upper flange plate 12, the lower flange plate 13 and the web plate 14 of the H-shaped steel. The reinforcing rib plate 11 is provided with a through hole for connecting a steel wire rope. Specifically, a through hole with a diameter of 60 to 80 mm is provided on the reinforcing rib plate 11. The through hole is provided to facilitate the use of steel wire ropes for reinforcement during loading.

[0050] like Figure 1 — Figure 4 As shown, a support plate 2 and a combined cover shell 3 for use with a rotor 6 are provided on the base 1. There are two support plates 2, and the two support plates 2 are symmetrically arranged along the length direction of the base 1. The support plate 2 is welded to the base 1 longitudinally, and ear plates 4 are symmetrically welded at its front and rear ends. Specifically, the support plate 2 includes a first support plate 21 and a second support plate 22. The left side of the first support plate 21 and the right side of the second support plate 22 can also be connected to the base 1 by adding a reinforcing plate 23, thereby improving the stability of the first support plate 21 and the second support plate 22 on the base 1. The support plate 2 is welded by steel plates. In actual use, the support plate 2 can adopt an integral structure or a combined structure. For example, the support plate 2 is welded by a lower support plate, a middle support plate and an upper support plate.

[0051] like Figure 3As shown, a locking structure for locking the journal of the rotor bearing 62 is provided at the top of the support plate 2. The locking structure includes a first arc groove 211 and a second arc groove 221 arranged at the top of the first support plate 21 and the second support plate 22, and a first pressure cover 212 and a second pressure cover 222 matched with the first arc groove 211 and the second arc groove 221. The first pressure cover 212 and the second pressure cover 222 are provided with a first pressure cover groove 213 and a second pressure cover groove 223 matched with the first arc groove 211 and the second arc groove 221; the first pressure cover 212 and the second pressure cover 222 are connected to the top of the first support plate 21 and the second support plate 22 by bolts. In actual use, the first arc groove 211 and the second arc groove 221 correspond to the journal of the rotor bearing 62, and the journal of the rotor bearing 62 is clearance-matched with the first arc groove 211 and the second arc groove 221. In order to further increase the contact area between the first arc groove 211 and the second arc groove 221 and the journal of the rotor bearing 62, arc steel plates of the same shape are welded at the first arc groove 211 and the second arc groove 221. Arc aluminum plates of the same shape are welded at the first gland groove 213 and the second gland groove 223 of the first gland 212 and the second gland 222. By adopting this technical measure, the rotor bearing 62 can be locked, and then the rotor 6 can be locked to prevent the rotor 6 from moving up and down and left and right in the combined cover 3, so that the rotor 6 can be stably placed in the combined cover 3, which can effectively improve the protection of the product, thereby effectively protecting the product.

[0052] like Figure 3 As shown, the first support plate 21 and the second support plate 22 are respectively provided with a tightening structure 5 for tightening the left and right sides of the rotor body 61; that is, the first support plate 21 and the second support plate 22 are respectively provided with a tightening structure 5 for tightening the left and right sides of the rotor body 61. Specifically, the tightening structure 5 includes a tightening bolt 51, a nut 52 and a copper sleeve 53; the first support plate 21 and the second support plate 22 are provided with a through hole for the tightening bolt 51 to pass through corresponding to the rotor body 61, and the nut 52 is welded on the left side of the first support plate 21 and the right side of the second support plate 22 respectively corresponding to the through hole; after the end of the tightening bolt 51 passes through the nut 52 and the through hole, the copper sleeve 53 is installed on the end thereof, and the copper sleeve 53 is used to abut against one side of the rotor body 61. In actual use, after the rotor 6 is placed in the combined cover, bolts and copper sleeves 53 are used to tighten the two sides of the rotor body (tighten the root position of the last blade of the rotor 6); further prevent the rotor 6 from moving back and forth in the combined cover; and further enable the rotor 6 to be stably placed in the combined cover shell 3, which can effectively improve the protection of the product, thereby effectively protecting the product.

[0053] like Figure 1 — Figure 4As shown, the support plate 2 is arranged longitudinally, and the ear plates 4 are symmetrically welded at the front and rear ends. A ladder 44 is provided on the outside of the ear plate 4. Specifically, the ladder 44 is provided on the outside of the ear plate 4, and is spliced ​​and fully welded with the first support plate 21 and the second support plate 22 to form a whole, so as to ensure the lifting strength. In actual use, the top of the ear plate 4 extends upward beyond the top of the support plate 2, and the opposite side of the ear plate 4 is connected to the top of the support plate 2 through the first lifting reinforcement rib plate 42; the lower end of the ear plate 4 passes through the rectangular through hole 15 of the upper flange plate 12 of the base 1 and is welded to the lower flange plate 13 of the base 1, and is connected between the inner side of the ear plate 4 and the web 14 of the base 1 through the second lifting reinforcement rib plate 43. By providing the first lifting reinforcement rib plate 42 and the second lifting reinforcement rib plate 11, the connection strength between the ear plate 4 and the base 1 and the support plate 2 can be improved, thereby effectively improving the lifting strength.

[0054] like Figure 1 , Figure 2 As shown, the upper shell 31 and the lower shell 32 are multi-section structures, and the lower shell 32 includes a lower shell middle section 321 fixedly mounted on the base 1 between the first support plate 21 and the second support plate 22, a lower shell left section 322 welded to the left side of the first support plate 21, and a lower shell right section 323 welded to the right side of the second support plate 22; correspondingly, the upper shell 31 includes an upper shell middle section 311, an upper shell left section 312 and an upper shell right section 313; when the rotor 6 is fixedly placed in the lower shell 32, the upper shell left section 312, the upper shell middle section 311 and the upper shell right section 313 of the upper shell 31 are respectively locked with the lower shell left section 322, the lower shell middle section 321 and the lower shell right section 323 by spring locks 33. In actual use, since the first support plate 21 and the second support plate 22 are provided on the base 1, the lower shell 32 needs to be arranged in sections, which includes a lower shell middle section 321 arranged between the first support plate 21 and the second support plate 22, the lower shell middle section 321 corresponds to the rotor body 61, and the lower shell middle section 321 is welded on the base 1; the lower shell left section 322 is welded on the left side of the first support plate 21, and the lower shell right section 323 is welded on the right side of the second support plate 22. The upper shell 31 is provided with an upper shell 31 middle section, an upper shell left section 312 and an upper shell right section 313 corresponding to the lower shell 32 middle section, the lower shell left section 322 and the lower shell right section 323 of the lower shell 32. The upper shell 31 and the lower shell 32 are sealed by a shaping rubber strip 34 and connected by a spring lock 33. The spacing between the spring locks 33 is 650mm~850mm.

[0055] like Figure 7As shown, the spring lock 33 includes a lock hook 331 and a lock ring component that cooperates with the lock hook 331; the lock ring component includes a spring lock base 332, a spring 333 arranged on the spring lock base 332, a spring lock ring 334 connected to the upper end of the spring 333, and a spring lock handle 335 connected to the lower end of the spring 333. The spring lock ring 334 cooperates with the lock hook 331; the spring 333 is driven by the spring lock handle 335, thereby driving the spring lock ring 334. In actual use, the spring lock 33 is a prior art, and a plurality of lock hooks 331 are arranged at intervals at the outer edge of the upper shell 31 near the lower shell 32, and a corresponding number of lock ring components are arranged on the lower shell 32 corresponding to the lock hooks 331. Compared with the packaging mode of fixing the combined cover 3 by bolt connection, the combined cover 3 of the practical type is connected by the spring lock 33, which improves the packaging efficiency and on-site unpacking efficiency;

[0056] like Figure 1 , Figure 2 As shown, a plurality of lifting lugs 3111 are symmetrically provided on the front and rear sides of the middle section 311 of the upper shell, and two hooks 35 for lifting are respectively provided on the upper sides of the left section 312 and the right section 3133 of the upper shell. Specifically, two lifting lugs 3111 are symmetrically provided on the front and rear sides of the middle section 311 of the upper shell. This technical measure is adopted to facilitate disassembly and assembly and lifting.

[0057] like Figure 1 , Figure 2 As shown, square operation platforms 3112 are provided at both ends of the middle section 311 of the upper shell and corresponding to the top of the support plate 2, and square structures corresponding to the square operation platforms 3112 are provided on the left side of the left section 322 of the lower shell and on the right side of the right section 323 of the lower shell. The square operation platforms 3112 are provided to facilitate workers to perform packaging operations.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully enclosed steam turbine low-pressure rotor packaging device, characterized in that: It includes a rectangular base welded with H-shaped steel, two support plates symmetrically arranged along the length direction of the base, and a combined cover for covering the rotor; The support plate is welded longitudinally on the base, and ear plates are symmetrically welded at the front and rear ends thereof; a lifting ring is provided on the top of the ear plate; The support plate corresponds to the journal of the rotor bearing, and a locking structure for fixing the journal is provided on the top of the support plate; The combined cover shell comprises an upper shell and a lower shell detachably connected to the upper shell, wherein the lower shell is fixed on a base; after the combined cover shell encapsulates the rotor therein, the upper shell and the lower shell are sealed by a molding rubber strip and connected by a spring lock.

2. The fully enclosed steam turbine low-pressure rotor packaging device according to claim 1, characterized in that: The support plate includes a first support plate and a second support plate arranged opposite to each other; the locking structure includes a first arc-shaped groove and a second arc-shaped groove arranged on the top of the first support plate and the second support plate, and a first pressure cover and a second pressure cover matched with the first arc-shaped groove and the second arc-shaped groove, and the first pressure cover and the second pressure cover are provided with a first pressure cover groove and a second pressure cover groove matched with the first arc-shaped groove and the second arc-shaped groove; the first pressure cover and the second pressure cover are connected to the top of the first support plate and the second support plate by bolts.

3. The fully enclosed steam turbine low-pressure rotor packaging device according to claim 2, characterized in that: The first arc-shaped groove and the second arc-shaped groove are respectively welded with arc-shaped steel plates of the same shape; the first gland groove and the second gland groove are respectively welded with arc-shaped aluminum plates of the same shape.

4. The fully enclosed steam turbine low-pressure rotor packaging device according to claim 2, characterized in that: The first support plate and the second support plate are respectively provided with a tightening structure on the left and right sides of the rotor body.

5. The fully enclosed steam turbine low-pressure rotor packaging device according to claim 4, characterized in that: The tightening structure includes a tightening bolt, a nut and a copper sleeve; through holes for the tightening bolt to pass through are provided on the first support plate and the second support plate corresponding to the rotor body, and nuts are welded on the left side of the first support plate and the right side of the second support plate corresponding to the through holes; after the end of the tightening bolt passes through the nut and the through hole, a copper sleeve is installed on its end, and the copper sleeve is used to abut one side of the rotor body.

6. The fully enclosed steam turbine low-pressure rotor packaging device according to claim 1, characterized in that: The top end of the ear plate extends upward beyond the top of the support plate, and the opposite side of the ear plate is connected to the top of the support plate through a first lifting reinforcement rib plate; the lower end of the ear plate passes through the rectangular through hole of the upper flange plate of the base and is welded to the lower flange plate of the base, and is connected between the inner side of the ear plate and the web of the base through a second lifting reinforcement rib plate.

7. The fully enclosed steam turbine low-pressure rotor packaging device according to claim 1, characterized in that: Reinforcement ribs are welded between the upper flange plate, the lower flange plate and the web plate of the base; and the reinforcement ribs are provided with through holes for connecting steel wire ropes.

8. The fully enclosed steam turbine low-pressure rotor packaging device according to claim 1, characterized in that: The upper shell and the lower shell are of multi-section structure, and the lower shell includes a lower shell middle section fixedly mounted on the base between the first support plate and the second support plate, a lower shell left section welded on the left side of the first support plate, and a lower shell right section welded on the right side of the second support plate; correspondingly, the upper shell includes an upper shell middle section, an upper shell left section and an upper shell right section; when the rotor is fixedly placed in the lower shell, the upper shell left section, the upper shell middle section and the upper shell right section of the upper shell are respectively locked with the lower shell left section, the lower shell middle section and the lower shell right section by spring locks.

9. The fully enclosed steam turbine low-pressure rotor packaging device according to claim 8, characterized in that: A plurality of lifting ears are symmetrically arranged on the front and rear sides of the middle section of the upper shell, and two hooks for lifting are respectively arranged on the upper sides of the left section and the right section of the upper shell.

10. The fully enclosed steam turbine low-pressure rotor packaging device according to claim 8, characterized in that: Square operating platforms are provided at both ends of the middle section of the upper shell and at the top of the corresponding support plate, and square structures corresponding to the square operating platforms are respectively provided on the left side of the left section of the lower shell and the right side of the right section of the lower shell.

Images