CN215091752U

CN215091752U - Steam turbine air duct welding positioning device

Info

Publication number: CN215091752U
Application number: CN202120399743.6U
Authority: CN
Inventors: 柯斌; 白林鑫; 刘天周; 翟少彦
Original assignee: China Energy Engineering Group Northwest Power Construction Engineering Co ltd
Current assignee: China Energy Engineering Group Northwest Power Construction Engineering Co ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-12-10
Anticipated expiration: 2031-02-23

Abstract

The utility model relates to a steam turbine air duct welding position device, the field of welding position technique, it includes the supporting seat, be located sliding mechanism on the supporting seat, be located two backup pads on the sliding mechanism and be located the stop gear in the backup pad, stop gear includes first bidirectional screw, spacing slider and spacing motor, the spacing groove has been seted up along length direction to the backup pad, spacing slider is located the spacing inslot, first bidirectional screw runs through spacing slider's both ends and backup pad and rotates to be connected, first bidirectional screw sets up along the length direction of backup pad, the one end that first bidirectional screw stretches out the backup pad is connected with spacing motor, spacing motor is located the backup pad. This application can carry out spacing fixed to the air duct respectively through spacing slider, makes the air duct support in the backup pad, reduces the manpower and supports, and the operation workman of being convenient for carries out welding treatment between to two air ducts, improves the welding quality to the air duct, and then improves work efficiency.

Description

Steam turbine air duct welding positioning device

Technical Field

The application relates to the field of welding positioning technology, in particular to a welding positioning device for a gas guide tube of a steam turbine.

Background

A steam turbine is an external combustion rotary machine that can convert steam heat energy into mechanical work. After steam from the boiler enters the steam turbine through the air duct, the steam sequentially passes through a series of annularly configured nozzles and movable blades, and heat energy of the steam is converted into mechanical energy for rotating a rotor of the steam turbine. The steam is converted in different ways in the steam turbine, thus forming the steam turbine with different working principles. Steam turbines are the main equipment of modern thermal power plants, and are also used in the metallurgical industry, chemical industry and ship power plants.

When the distance between the boiler and the steam turbine is too large, the air guide pipes are often required to be welded in a butt joint mode so as to connect the boiler and the steam turbine in a real mode. In the welding process, the butt joint is realized by manpower, then the welding treatment is carried out, and the connection of the steam turbine and the boiler is realized

In view of the above-mentioned related art, the inventor believes that lifting the air ducts by human power and then welding easily causes shaking during welding, makes it difficult to position the air ducts, and makes welding inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the welding of realizing between the air duct, this application provides a steam turbine air duct welding position device.

The application provides a steam turbine air duct welding position device adopts following technical scheme:

the utility model provides a steam turbine air duct welding position device, includes the supporting seat, is located slide mechanism on the supporting seat, is located two backup pads on the slide mechanism and is located stop gear in the backup pad, stop gear includes first bidirectional screw, limit slide and spacing motor, the spacing groove has been seted up along length direction to the backup pad, limit slide is located the spacing inslot, first bidirectional screw runs through limit slide's both ends with the backup pad rotates to be connected, first bidirectional screw follows the length direction of backup pad sets up, first bidirectional screw stretches out the one end and the spacing motor of backup pad are connected, spacing motor is located in the backup pad.

Through adopting above-mentioned technical scheme, when needing to weld two air ducts, move the support pedestal between two air ducts that need the welding, then according to the support needs of air duct, adjust glide machanism, glide machanism realizes the position change of backup pad on the supporting seat, then adjust two spacing motors respectively, the drive shaft of spacing motor drives first bidirectional screw and rotates, under the effect of spacing groove, two spacing slider of first bidirectional screw drive move in opposite directions, the motion is realized the spacing support of air duct in the backup pad, then the operation workman carries out welding process to the air duct. Through spacing slider, can carry out spacing fixed to the air duct respectively, make the air duct support in the backup pad, reduce the manpower and support, the operation workman of being convenient for carries out welding treatment between to two air ducts, improves the welding quality to the air duct, and then improves work efficiency.

Optionally, the limiting slide block extends out of the limiting groove and is provided with a limiting plate.

Through adopting above-mentioned technical scheme, the limiting plate of setting can increase the contact range to the air duct, strengthens carrying out spacing fixed to not unidimensional air duct in the backup pad, and then carries out welding process to the air duct.

Optionally, a protective pad is arranged on the limiting plate.

Through adopting above-mentioned technical scheme, the protection of setting is filled up, can protect the air duct, reduces the limiting plate and carries out the wearing and tearing that cause when spacing to the air duct, prolongs the life of limiting plate and air duct.

Optionally, the sliding mechanism includes two second bidirectional screw rods, a driving gear and a driving assembly, a sliding groove is formed in the supporting seat along the length direction, the second bidirectional screw rods penetrate through two ends of the supporting plate and are rotatably connected with the supporting seat, one end of each second bidirectional screw rod extending out of the supporting plate is connected with the driving gear, and the driving assembly can drive the driving gear to rotate.

Through adopting above-mentioned technical scheme, adjust drive assembly, drive assembly drives drive gear and rotates, and drive gear drives two bidirectional screw of second and rotates, and under the effect in groove of sliding, drive assembly drives the position between two backup pads and changes, is convenient for carry out spacing support to the air duct according to the size of air duct, improves the backup pad and supports the stability of air duct support, and the operating personnel of being convenient for carries out welding process to the air duct. The glide machanism who sets up can adjust the distance between two backup pads according to the support needs of air duct, can improve the backup pad and support the stability of air duct, and the operating personnel of being convenient for carries out welding process to the air duct.

Optionally, the drive assembly includes drive chain and step motor, drive chain is around establishing on the drive gear, drive chain meshes with drive gear mutually, the second bidirectional screw stretches out the one end of supporting seat with step motor connects, step motor is located on the supporting seat.

Through adopting above-mentioned technical scheme, adjust step motor, step motor's drive shaft drives the rotation of second bidirectional screw, and under drive gear and drive chain's combined action, step motor drives two bidirectional screw rotations of second, is convenient for realize that the position between the backup pad changes, is convenient for adjust the distance between the backup pad as required. The drive assembly who sets up can provide power for the rotation of the bidirectional screw of second, is convenient for realize the distance change between two backup pads, can make the backup pad support the air duct, improves the support stability to the air duct.

Optionally, an anti-collision block is arranged at a connection position of the positive thread of the second bidirectional screw and the reverse thread section of the second bidirectional screw.

Through adopting above-mentioned technical scheme, the anticollision ring that sets up can carry on spacingly to the motion of backup pad, reduces the backup pad and bumps at the in-process of motion, reduces the damage.

Optionally, an organ cover is arranged at the notch of the sliding groove.

Through adopting above-mentioned technical scheme, the organ cover of setting can protect the groove that slides, reduces welding residue and falls into the inslot that slides, and then brings inconvenience for later stage clearance.

Optionally, the bottom of the supporting seat is provided with at least three pulleys.

Through adopting above-mentioned technical scheme, the pulley of setting can reduce the area of contact of supporting seat and ground, is convenient for adjust the position of supporting seat as required, improves the efficiency of transporting the supporting seat.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the air guide pipes can be limited and fixed through the limiting sliding blocks, so that the air guide pipes are supported on the supporting plate, manpower support is reduced, operators can weld the two air guide pipes conveniently, the welding quality of the air guide pipes is improved, and further the working efficiency is improved;

2. the glide machanism who sets up can adjust the distance between two backup pads according to the support needs of air duct, can improve the backup pad and support the stability of air duct, and the operating personnel of being convenient for carries out welding process to the air duct.

Drawings

FIG. 1 is a schematic overall structure diagram of a turbine air duct welding and positioning device according to an embodiment of the present application.

FIG. 2 is a cross-sectional view of a turbine airway welding fixture according to an embodiment of the present application.

Description of reference numerals: 1. a supporting seat; 11. a pulley; 2. a sliding mechanism; 21. a second bidirectional screw; 22. a drive gear; 23. a drive assembly; 231. a drive chain; 232. a stepping motor; 233. an anti-collision block; 234. an organ cover; 24. a sliding groove; 3. a support plate; 4. a limiting mechanism; 41. a first bidirectional screw; 42. a limiting slide block; 43. a limiting motor; 44. a limiting groove; 45. a limiting plate; 46. a protective pad.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses steam turbine air duct welding position device. Referring to fig. 1, steam turbine air duct welding position device includes supporting seat 1, is located sliding mechanism 2 on supporting seat 1, is located two backup pads 3 on sliding mechanism 2 and is located the stop gear 4 on the backup pad 3, and there are four pulleys 11 bottom supporting seat 1 through bolted connection, and this embodiment pulley 11 sets up to the universal wheel.

Referring to fig. 1, in order to facilitate the realization of the air duct limited support on the support plate 3, the limiting mechanism 4 includes a first bidirectional screw 41, two limiting sliders 42 and a limiting motor 43, a limiting groove 44 is provided along the length direction of the support plate 3, the limiting slider 42 is located in the limiting groove 44, the first bidirectional screw 41 penetrates through two ends of the limiting slider 42 and is connected with the support plate 3 through a bearing, an inner ring of the bearing is in interference fit with the first bidirectional screw 41, an outer ring of the bearing is in interference fit with the support plate 3, and the bearing is not labeled in this embodiment. First two-way screw 41 distributes along the length direction of backup pad 3, and first two-way screw 41 stretches out the one end of backup pad 3 and welds with the driving shaft of spacing motor 43, and the base of spacing motor 43 passes through the bolt fastening on backup pad 3, and the body coupling that spacing slider 42 stretches out spacing groove 44 has limiting plate 45, and limiting plate 45 sets up to arc, is convenient for press from both sides tightly fixedly to the air duct, and limiting plate 45 is close to one side each other and bonds and have protection pad 46.

Referring to fig. 2, in order to improve the stability of the air duct in the support plate 3, and be convenient for realize the regulation to the air duct, the glide machanism 2 includes two second bidirectional screw 21, drive gear 22 and drive assembly 23, and the sliding groove 24 has been seted up along length direction to supporting seat 1, and second bidirectional screw 21 runs through the both ends of backup pad 3 and is connected through the bearing with supporting seat 1, the outer lane and the 1 interference fit of supporting seat of bearing, the inner circle and the 21 interference fit of second bidirectional screw of bearing. One end of the second bidirectional screw 21 extending out of the support plate 3 is connected with the drive gear 22, the drive gear 22 is coaxially welded on the second bidirectional screw 21, the drive assembly 23 can drive the drive gear 22 to rotate, the drive assembly 23 comprises a drive chain 231 and a stepping motor 232, the drive chain 231 is wound on the drive gear 22, the drive chain 231 is meshed with the drive gear 22, one end of the second bidirectional screw 21 extending out of the support seat 1 is welded with a drive shaft of the stepping motor 232, a base of the stepping motor 232 is fixed on the support seat 1 through a bolt, an anti-collision block 233 is arranged at a connection position of a positive thread of the second bidirectional screw 21 and a reverse thread section of the second bidirectional screw 21, the anti-collision block 233 is integrally connected with the support seat 1, and an organ cover 234 is installed at a notch of the sliding groove 24.

The implementation principle of the gas guide pipe welding and positioning device of the steam turbine in the embodiment of the application is as follows: when two air ducts are welded, the supporting seat is moved between the two air ducts to be welded, then the stepping motor 232 is adjusted according to the supporting requirements of the air ducts, the driving shaft of the stepping motor 232 drives the second bidirectional screw 21 to rotate, and under the combined action of the driving gear 22 and the driving chain 231, the stepping motor 232 drives the two second bidirectional screws 21 to rotate so as to adjust the distance between the supporting plates 3 as required. Be convenient for carry out spacing support to the air duct according to the size of air duct, improve backup pad 3 and support the stability of air duct, be convenient for operating personnel carries out welding process to the air duct. Then adjust two spacing motors 43 respectively, the drive shaft of spacing motor 43 drives first two-way screw 41 and rotates, and under the effect of spacing groove 44, two spacing sliders 42 of first two-way screw 41 drive move in opposite directions, and spacing slider 42 drives limiting plate 45 and moves in opposite directions, and the motion realizes the spacing support of air duct on backup pad 3, realizes the alignment between the air duct, then the operation workman carries out welding process to the air duct.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a steam turbine air duct welding position device which characterized in that: comprises a supporting seat (1), a sliding mechanism (2) positioned on the supporting seat (1), two supporting plates (3) positioned on the sliding mechanism (2) and a limiting mechanism (4) positioned on the supporting plates (3), the limiting mechanism (4) comprises a first bidirectional screw (41), a limiting slide block (42) and a limiting motor (43), the supporting plate (3) is provided with a limiting groove (44) along the length direction, the limiting slide block (42) is positioned in the limiting groove (44), the first bidirectional screw (41) penetrates through two ends of the limiting slide block (42) and is rotationally connected with the supporting plate (3), the first bidirectional screw (41) is arranged along the length direction of the support plate (3), one end, extending out of the support plate (3), of the first bidirectional screw (41) is connected with a limiting motor (43), and the limiting motor (43) is located on the support plate (3).

2. The turbine air duct welding and positioning device according to claim 1, characterized in that: the limiting slide block (42) extends out of the limiting groove (44) and is provided with a limiting plate (45).

3. The turbine air duct welding and positioning device according to claim 2, characterized in that: and a protective pad (46) is arranged on the limiting plate (45).

4. The turbine air duct welding and positioning device according to claim 1, characterized in that: the sliding mechanism (2) comprises two second bidirectional screws (21), a driving gear (22) and a driving assembly (23), a sliding groove (24) is formed in the supporting seat (1) along the length direction, the second bidirectional screws (21) penetrate through the two ends of the supporting plate (3) and the supporting seat (1) to be rotatably connected, one end, extending out of the supporting plate (3), of the second bidirectional screws (21) is connected with the driving gear (22), and the driving assembly (23) can drive the driving gear (22) to rotate.

5. The turbine airway welding and positioning device of claim 4, wherein: drive assembly (23) include drive chain (231) and step motor (232), drive chain (231) are around establishing on drive gear (22), drive chain (231) and drive gear (22) mesh mutually, second bidirectional screw (21) stretch out the one end of supporting seat (1) with step motor (232) are connected, step motor (232) are located on supporting seat (1).

6. The turbine airway welding and positioning device of claim 4, wherein: and an anti-collision block (233) is arranged at the connection part of the positive thread of the second bidirectional screw (21) and the reverse thread section of the second bidirectional screw (21).

7. The turbine airway welding and positioning device of claim 4, wherein: an organ cover (234) is arranged at the notch of the sliding groove (24).

8. The turbine air duct welding and positioning device according to claim 1, characterized in that: the bottom of the supporting seat (1) is provided with at least three pulleys (11).