CN113305478A

CN113305478A - Preheating device for welding large-scale steel structure

Info

Publication number: CN113305478A
Application number: CN202110699732.4A
Authority: CN
Inventors: 赵永民; 李欣荣; 赵潇雅; 赵博恒; 刘起恒
Original assignee: Zhongcheng Huirong Industrial Group Co ltd
Current assignee: Zhongcheng Huirong Industrial Group Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-08-27
Anticipated expiration: 2041-06-23
Also published as: CN113305478B

Abstract

The invention discloses a preheating device for welding a large-scale steel structure, which comprises a fixed plate, wherein four supporting rods are fixedly connected to the fixed plate, a guide groove is formed in the fixed plate, a guide rod is slidably connected to the inside of the guide groove, a connecting rod is fixedly connected to the guide rod, a connecting pipe is fixedly connected to the connecting rod, a plurality of spray heads are arranged on the connecting pipe, an air inlet pipe is arranged on the connecting pipe, a rotating rod is connected to the inside of the connecting rod through threads, and a rotating seat is rotatably sleeved on the outer side of the rotating rod. According to the invention, through the effect of the design of the spray head, the effect of preheating the hot spraying gas can be achieved for the steel, and the rotating rod can rotate under the effect of the motor, so that the spray head can horizontally move on the outer side of the steel, and the spray head can continuously reciprocate through the forward and reverse rotation of the motor, thereby the preheating effect for the steel is more uniform.

Description

Preheating device for welding large-scale steel structure

Technical Field

The invention relates to the technical field of steel structure welding, in particular to a preheating device for large-scale steel structure welding.

Background

Patent publication No. CN212286218U discloses a steel structure welding preheating device, which comprises a flame spray gun, a connecting main pipe and an extension pipe, wherein the connecting main pipe is sleeved on the flame spray gun; the expansion pipe and the steel plate plane to be heated are equal in width, a plurality of equidistant exhaust pipes are arranged on the expansion pipe in parallel, the connecting main pipe is communicated with the middle point of the expansion pipe, the distance between the exhaust pipes is 150-200mm, the flame distribution area of the device is large, the component is uniformly heated in the preheating process, the construction efficiency can be effectively improved, and the labor cost and the material cost are saved.

Current preheating device for steel construction welding is when using, and is not even enough to the effect of preheating of steel, and the influence is to the effect of preheating of steel to the device is not convenient for preheat the steel of different thickness, and the suitability is lower.

Disclosure of Invention

The invention aims to provide a preheating device for welding a large-scale steel structure, which solves the problem that the preheating effect of steel is not uniform enough and also solves the problem that the device is inconvenient to preheat the steel with different thicknesses.

In order to achieve the purpose, the invention provides the following technical scheme: a preheating device for welding a large-scale steel structure comprises a fixed plate, wherein four support rods are fixedly connected to the fixed plate, a guide groove is formed in the fixed plate, a guide rod is slidably connected to the inside of the guide groove, a connecting rod is fixedly connected to the guide rod, a connecting pipe is fixedly connected to the connecting rod, a plurality of spray heads are arranged on the connecting pipe, an air inlet pipe is arranged on the connecting pipe, a rotating rod is connected to the inside of the connecting rod through threads, a rotating seat is rotatably sleeved on the outer side of the rotating rod and is slidably connected with the fixed plate, a limiting groove is formed in the rotating seat, a limiting rod is clamped in the limiting groove, a limiting seat is slidably sleeved on the outer side of the limiting rod and is fixedly connected with the fixed plate, a limiting ring is fixedly connected to the limiting rod, and a first spring is arranged on the outer side of the limiting rod, fixedly connected with links the board on the fixed plate, link clamp splice under fixedly connected with on the board, the contact has steel on the clamp splice down, the contact has last clamp splice on the steel, go up clamp splice and link the board contact, fixedly connected with slider on the last clamp splice, the slider with link board sliding connection, fixedly connected with fixed block on the slider, the fixed block with link the board contact, fixedly connected with locating lever on the fixed block, the positioning seat has been cup jointed in the outside slip of locating lever, the positioning seat with link board fixed connection, the outside of locating lever is provided with the second spring, fixedly connected with holding ring on the locating lever, the holding ring with link the board contact, fixedly connected with motor on the roating seat, the pivot and the dwang fixed connection of motor.

Preferably, the number of the fixing plates is two, and the two fixing plates are symmetrically distributed on the connecting plate.

Preferably, a rotating groove is formed in the rotating seat, and a rotating rod is rotatably connected inside the rotating groove.

Preferably, the rotating rod is fixedly connected with a fixing ring, and the fixing ring is in contact with the rotating seat.

Preferably, the fixed plate is provided with a guide groove, and the inside of the guide groove is slidably connected with a rotating seat.

Preferably, the number of the limiting grooves is multiple, and the limiting grooves are uniformly distributed on the rotating seat.

Preferably, a through hole is formed in the limiting seat, and a limiting rod is connected to the inside of the through hole in a sliding mode.

Preferably, one end of the first spring is welded with the limiting ring, and the other end of the first spring is welded with the limiting seat.

Preferably, the connecting plate is provided with a sliding groove, and the sliding groove is connected with a sliding block in a sliding manner.

Preferably, one end of the second spring is welded with the positioning seat, and the other end of the second spring is welded with the positioning ring.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, through the effect of the design of the spray head, the effect of preheating the hot spraying gas can be achieved for the steel, and the rotating rod can rotate under the effect of the motor, so that the spray head can horizontally move on the outer side of the steel, and the spray head can continuously reciprocate through the forward and reverse rotation of the motor, thereby the preheating effect for the steel is more uniform.

2. According to the invention, the guide groove is in sliding connection with the rotating seat, so that the rotating seat can drive the connecting pipes to move up and down, the spray head can move, the device can preheat steel products with different thicknesses by changing the distance between the two connecting pipes, the applicability is better, and the steel products can be clamped and positioned by the action of the upper clamping block and the lower clamping block, so that the steel products are prevented from moving in the preheating process.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the retaining plate structure of FIG. 1 in accordance with the present invention;

FIG. 3 is a left side view of the connection tube structure of FIG. 1 in accordance with the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 1 according to the present invention;

FIG. 5 is an enlarged view of the portion B of FIG. 1 according to the present invention.

In the figure: 1. a fixing plate; 2. a support bar; 3. a guide groove; 4. a guide bar; 5. a connecting rod; 6. a connecting pipe; 7. a spray head; 8. an air inlet pipe; 9. rotating the rod; 10. a rotating seat; 11. a rotating groove; 12. a fixing ring; 13. a guide groove; 14. a limiting groove; 15. a limiting rod; 16. a limiting seat; 17. a through hole; 18. a limiting ring; 19. a first spring; 20. a lower clamping block; 21. steel material; 22. an upper clamping block; 23. a slider; 24. a chute; 25. a fixed block; 26. positioning a rod; 27. positioning seats; 28. a second spring; 29. a positioning ring; 30. a motor; 31. and (7) connecting plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 2, 3, 4 and 5, a preheating device for welding a large-scale steel structure comprises a fixing plate 1, four support rods 2 are fixedly connected to the fixing plate 1, a guide groove 3 is formed in the fixing plate 1, a guide rod 4 is slidably connected to the inside of the guide groove 3, a connecting rod 5 is fixedly connected to the guide rod 4, a connecting pipe 6 is fixedly connected to the connecting rod 5, a plurality of spray heads 7 are arranged on the connecting pipe 6, an air inlet pipe 8 is arranged on the connecting pipe 6, the air inlet pipe 8 is a hose, a rotating rod 9 is connected to the inside of the connecting rod 5 through a thread, a rotating seat 10 is rotatably sleeved on the outer side of the rotating rod 9, the rotating seat 10 is slidably connected to the fixing plate 1, a limit groove 14 is formed in the rotating seat 10, a limit rod 15 is clamped inside the limit groove 14, a limit seat 16 is slidably sleeved on the outer side of the limit rod 15, and the limit seat 16 is fixedly connected to the fixing plate 1, fixedly connected with spacing ring 18 on gag lever post 15, the outside of gag lever post 15 is provided with first spring 19, fixedly connected with links board 31 on the fixed plate 1, link board 31 go up fixedly connected with lower clamp splice 20, the contact has steel 21 on the lower clamp splice 20, steel 21 goes up the contact has last clamp splice 22, go up clamp splice 22 and link board 31 contact, go up fixedly connected with slider 23 on the clamp splice 22, slider 23 and link board 31 sliding connection, fixedly connected with fixed block 25 on the slider 23, fixed block 25 and link board 31 contact, fixedly connected with locating lever 26 on the fixed block 25, locating seat 27 has been cup jointed in the outside slip of locating lever 26, locating seat 27 and link board 31 fixed connection, the outside of locating lever 26 is provided with second spring 28, fixedly connected with holding ring 29 on the locating lever 26, holding ring 29 and link board 31 contact, the fixedly connected with motor 30 on the seat 10 rotates, the pivot and dwang 9 fixed connection of motor 30.

Referring to fig. 1 and 2, the number of the fixing plates 1 is two, and the two fixing plates 1 are symmetrically distributed on the connecting plate 31. The fixing plate 1 is designed to be a main body frame of the device.

Referring to fig. 1 and 5, a rotation slot 11 is formed on the rotation base 10, and a rotation rod 9 is rotatably connected to the inside of the rotation slot 11. The turning lever 9 is rotatable in the turning groove 11 by designing the turning groove 11.

Referring to fig. 1, a fixed ring 12 is fixedly connected to the rotating rod 9, and the fixed ring 12 contacts with the rotating base 10. By designing the fixing ring 12, the rotating lever 9 can be prevented from moving horizontally.

Referring to fig. 1, 2 and 4, a guide groove 13 is formed on the fixing plate 1, and a rotating base 10 is slidably connected inside the guide groove 13. The guide groove 13 is designed such that the rotary base 10 can slide up and down in the guide groove 13.

Referring to fig. 1 and 4, the number of the limiting grooves 14 is plural, and the plural limiting grooves 14 are uniformly distributed on the rotating base 10. By designing a plurality of limiting grooves 14, the limiting rod 15 can be inserted into the limiting grooves 14 of the rotating base 10 at different positions.

Referring to fig. 1 and 4, a through hole 17 is formed on the limiting seat 16, and the limiting rod 15 is slidably connected inside the through hole 17. The through hole 17 is designed so that the stopper rod 15 can slide in the through hole 17.

Referring to fig. 1 and 4, one end of the first spring 19 is welded to the limit ring 18, and the other end of the first spring 19 is welded to the limit seat 16. The first spring 19 is designed such that the force of the first spring 19 acts on the stop collar 18.

Referring to fig. 1, the connecting plate 31 is provided with a sliding slot 24, and the sliding block 23 is slidably connected inside the sliding slot 24. The slide groove 24 is designed such that the slider 23 can slide in the slide groove 24.

Referring to fig. 1, one end of the second spring 28 is welded to the positioning seat 27, and the other end of the second spring 28 is welded to the positioning ring 29. The second spring 28 is designed such that the force of the second spring 28 acts on the positioning ring 29.

The specific implementation process of the invention is as follows: during the use, when needing to preheat steel 21, earlier on clamp splice 22 in the rebound, go up clamp splice 22 and drive slider 23 and slide in spout 24, slider 23 drives fixed block 25 and removes, fixed block 25 drives locating lever 26 and removes, locating lever 26 drives holding ring 29 and removes, make the tensile second spring 28 of holding ring 29, then place steel 21 on clamp splice 20 down, then loosen clamp splice 22, through the elastic reaction of second spring 28, can drive locating lever 26 and remove, thereby make fixed block 25 drive clamp splice 22 and remove and hug closely with steel 21, can carry out the centre gripping location to steel 21, prevent to preheat in-process steel 21 and take place to remove. Then with external steam through the intake pipe 8 add in connecting pipe 6, steam can pass through 7 blowout of shower nozzle, can play a effect that steam of spouting preheats to steel 21, motor 30 work motor 30's pivot drives dwang 9 and rotates at roating seat 10 internal rotation simultaneously, threaded connection through dwang 9 and connecting rod 5, make connecting rod 5 can horizontal migration, connecting rod 5 can drive guide bar 4 and slide in guide way 3, connecting rod 5 drives connecting pipe 6 and removes, thereby reach the purpose of horizontal migration shower nozzle 7, through the continuous positive and negative commentaries on classics of motor 30, make shower nozzle 7 continuous carry out horizontal direction's reciprocating motion, thereby make the preheating effect to steel 21 more even. When steel 21 with different thicknesses needs to be preheated, the limiting ring 18 is pulled outwards, the limiting ring 18 can stretch the first spring 19, the limiting ring 18 drives the limiting rod 15 to move, so that the limiting rod 15 is separated from the limiting groove 14, then the rotating seat 10 is pulled to slide in the guide groove 13, the rotating seat 10 drives the rotating rod 9 to move, the rotating rod 9 drives the connecting rod 5 to move, the connecting rod 5 drives the guide rod 4 to slide in the guide groove 3, the connecting rod 5 drives the connecting pipe 6 to move, the connecting pipe 6 drives the spray head 7 to move, after the connecting pipe 6 is adjusted to a proper position, the limiting ring 18 is loosened, a reaction force can be given to the limiting ring 18 through the elastic action of the first spring 19, so that the limiting ring 18 drives the limiting rod 15 to move, the limiting rod 15 can be inserted into the limiting groove 14, the rotating seat 10 can be positioned, so that the connecting pipe 6 is positioned, and the distance between the two connecting pipes 6 is changed, the device can preheat steel 21 with different thicknesses, and is better in applicability.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a preheating device is used in welding of large-scale steel construction, includes fixed plate (1), its characterized in that: the fixing plate is characterized in that four support rods (2) are fixedly connected to the fixing plate (1), a guide groove (3) is formed in the fixing plate (1), a guide rod (4) is connected to the inner portion of the guide groove (3) in a sliding manner, a connecting rod (5) is fixedly connected to the guide rod (4), a connecting pipe (6) is fixedly connected to the connecting rod (5), a plurality of spray heads (7) are arranged on the connecting pipe (6), an air inlet pipe (8) is arranged on the connecting pipe (6), the connecting rod (5) is connected to a rotating rod (9) in a threaded manner, a rotating seat (10) is rotatably sleeved on the outer side of the rotating rod (9), the rotating seat (10) is slidably connected to the fixing plate (1), a limiting groove (14) is formed in the rotating seat (10), a limiting rod (15) is clamped to the inner portion of the limiting groove (14), a limiting seat (16) is slidably sleeved on the outer side of the limiting rod (15), the limiting seat (16) is fixedly connected with the fixing plate (1), the limiting ring (18) is fixedly connected with the limiting rod (15), a first spring (19) is arranged on the outer side of the limiting rod (15), the fixing plate (1) is fixedly connected with a connecting plate (31), the connecting plate (31) is fixedly connected with a lower clamping block (20), the lower clamping block (20) is contacted with steel (21), the steel (21) is contacted with an upper clamping block (22), the upper clamping block (22) is contacted with the connecting plate (31), the upper clamping block (22) is fixedly connected with a sliding block (23), the sliding block (23) is connected with the connecting plate (31) in a sliding manner, the sliding block (23) is fixedly connected with a fixing block (25), the fixing block (25) is contacted with the connecting plate (31), the fixing block (25) is fixedly connected with a positioning rod (26), and the positioning seat (27) is sleeved on the outer side of the positioning rod (26) in a sliding manner, positioning seat (27) and even board (31) fixed connection, the outside of locating lever (26) is provided with second spring (28), fixedly connected with holding ring (29) on locating lever (26), holding ring (29) and even board (31) contact, fixedly connected with motor (30) on rotating seat (10), the pivot and dwang (9) fixed connection of motor (30).

2. The preheating device for welding the large steel structure according to claim 1, wherein: the number of the fixing plates (1) is two, and the two fixing plates (1) are symmetrically distributed on the connecting plate (31).

3. The preheating device for welding the large steel structure according to claim 1, wherein: the rotary seat (10) is provided with a rotary groove (11), and the inside of the rotary groove (11) is rotatably connected with a rotary rod (9).

4. The preheating device for welding the large steel structure according to claim 1, wherein: the fixed ring (12) is fixedly connected to the rotating rod (9), and the fixed ring (12) is in contact with the rotating seat (10).

5. The preheating device for welding the large steel structure according to claim 1, wherein: the fixing plate (1) is provided with a guide groove (13), and the inside of the guide groove (13) is connected with a rotating seat (10) in a sliding manner.

6. The preheating device for welding the large steel structure according to claim 1, wherein: the number of the limiting grooves (14) is multiple, and the limiting grooves (14) are uniformly distributed on the rotating seat (10).

7. The preheating device for welding the large steel structure according to claim 1, wherein: a through hole (17) is formed in the limiting seat (16), and a limiting rod (15) is connected to the inside of the through hole (17) in a sliding mode.

8. The preheating device for welding the large steel structure according to claim 1, wherein: one end of the first spring (19) is welded with the limiting ring (18), and the other end of the first spring (19) is welded with the limiting seat (16).

9. The preheating device for welding the large steel structure according to claim 1, wherein: the connecting plate (31) is provided with a sliding groove (24), and the sliding groove (24) is connected with a sliding block (23) in a sliding manner.

10. The preheating device for welding the large steel structure according to claim 1, wherein: one end of the second spring (28) is welded with the positioning seat (27), and the other end of the second spring (28) is welded with the positioning ring (29).