CN113305478B

CN113305478B - Preheating device for welding large-scale steel structure

Info

Publication number: CN113305478B
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: 2023-01-13
Anticipated expiration: 2041-06-23
Also published as: CN113305478A

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 No. CN212286218U discloses a steel structure welding preheating device, which comprises a flame spray gun, a connecting main pipe and an expansion pipe, wherein the connecting main pipe is sleeved on the flame spray gun; the expansion pipe and the plane of the steel plate 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 structure welding is when using, and is even inadequately 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, and a limiting ring is fixedly connected to the limiting rod, the utility model discloses a positioning device for a steel plate, including spacing rod, fixed connection, link plate, anchor clamps piece under the fixedly connected with on the plate, the contact has steel on the anchor clamps piece down, the contact has last anchor clamps piece on the steel, go up anchor clamps piece and link plate contact, go up the anchor clamps piece and link plate contact, fixedly connected with slider on the anchor clamps piece, slider and link plate sliding connection, fixedly connected with fixed block on the slider, fixed block and link plate contact, fixedly connected with locating lever on the fixed block, the positioning seat has been cup jointed in the outside slip of locating lever, positioning seat and link plate fixed connection, the outside of locating lever is provided with the second spring, fixedly connected with holding ring on the locating lever, holding ring and link plate contact, fixedly connected with motor on the rotation 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 to the inside of 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 multiple 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 rod; 5. a connecting rod; 6. a connecting pipe; 7. a spray head; 8. an air inlet pipe; 9. rotating the rod; 10. rotating the base; 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to FIGS. 1, 2 and 3, FIG. 4 and FIG. 5 show a preheating device for welding large steel structures, which comprises a fixing plate 1, four support rods 2 fixedly connected to the fixing plate 1, a guide groove 3 formed on the fixing plate 1, a guide rod 4 slidably connected to the inside of the guide groove 3, a connecting rod 5 fixedly connected to the guide rod 4, a connecting pipe 6 fixedly connected to the connecting rod 5, a plurality of nozzles 7 arranged on the connecting pipe 6, an air inlet pipe 8 arranged on the connecting pipe 6, the air inlet pipe 8 being a flexible pipe, a rotating rod 9 connected to the inside of the connecting rod 5 via a screw thread, a rotating seat 10 rotatably sleeved on the outside of the rotating rod 9, the rotating seat 10 slidably connected to the fixing plate 1, a limit groove 14 formed on the rotating seat 10, a limit rod 15 clamped inside the limit groove 14, a limit seat 16 slidably sleeved on the outside of the limit rod 15, the limit seat 16 fixedly connected to the fixing plate 1, and a limit ring 18 fixedly connected to the limit rod 15, the outside of gag lever post 15 is provided with first spring 19, fixedly connected with links board 31 on fixed plate 1, link clamp splice 20 under fixedly connected with on the board 31, the contact has steel 21 on the clamp splice 20 down, the contact has last clamp splice 22 on the steel 21, 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, fixedly connected with motor 30 on the seat 10 rotates, motor 30's pivot and dwang 9 fixed connection.

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 base 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 stop collar 18, and the other end of the first spring 19 is welded to the stop block 16. The first spring 19 is designed such that the force of the first spring 19 can act 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 of different thickness needs to be preheated, the spacing ring 18 is pulled to the outer side, the spacing ring 18 can stretch the first spring 19, the spacing ring 18 drives the limiting rod 15 to move, make the limiting rod 15 separate from the limiting groove 14, then the pulling rotates the seat 10 and slides 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 adjusting the connecting pipe 6 to a proper position, the spacing ring 18 is loosened, through the elastic action of the first spring 19, a reaction force can be given to the spacing ring 18, make the spacing ring 18 drive 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, thereby the connecting pipe 6 is positioned, through changing the distance between the two connecting pipes 6, make the device preheat steel 21 of different thickness, and the applicability is better.

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 inner portion of the connecting rod (5) is connected with a rotating rod (9) through threads, a rotating seat (10) is rotatably sleeved on the outer side of the rotating rod (9), the rotating seat (10) is slidably connected with 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), a limiting ring (18) is fixedly connected to the limiting rod (15), a first spring (19) is arranged on the outer side of the limiting rod (15), and a lower connecting plate (31) is fixedly connected with a lower clamping block (31), the steel material (21) is contacted on the lower clamping block (20), the upper clamping block (22) is contacted on the steel material (21), the upper clamping block (22) is contacted with the connecting plate (31), a sliding block (23) is fixedly connected on the upper clamping block (22), the sliding block (23) is in sliding connection with the connecting plate (31), a fixed block (25) is fixedly connected on the sliding block (23), the fixed block (25) is contacted with the connecting plate (31), a positioning rod (26) is fixedly connected on the fixed block (25), a positioning seat (27) is sleeved on the outer side of the positioning rod (26) in a sliding manner, the positioning seat (27) is fixedly connected with the connecting plate (31), a second spring (28) is arranged on the outer side of the positioning rod (26), a positioning ring (29) is fixedly connected on the positioning rod (26), the positioning ring (29) is contacted with the connecting plate (31), a motor (30) is fixedly connected on the rotating seat (10), and a rotating shaft of the motor (30) is fixedly connected with the rotating rod (9);

a sliding groove (24) is formed in the connecting plate (31), and a sliding block (23) is connected to the inside of the sliding groove (24) in a sliding manner;

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).

2. The preheating device for welding the large-sized 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-sized steel structure according to claim 1, wherein: fixedly connected with solid fixed ring (12) on dwang (9), solid fixed ring (12) and rotation seat (10) contact.

5. The preheating device for welding the large-sized steel structure according to claim 1, wherein: a guide groove (13) is formed in the fixed plate (1), and a rotating seat (10) is connected to the inside of the guide groove (13) in a sliding mode.

6. The preheating device for welding the large-sized 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-sized 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-sized 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).