CN215572077U - Roller-hearth steel pipe secondary heating furnace - Google Patents

Abstract

The utility model relates to the technical field of steel pipe heating, in particular to a roller-hearth steel pipe secondary heating furnace which can conveniently limit the moving direction of a steel pipe, reduce the rotation and rolling of the steel pipe, conveniently perform secondary heating treatment on the steel pipe, reduce the processing difficulty, shorten the processing time and improve the production efficiency; including two sets of support frames, the furnace body, the multiunit driving roller, the multiunit rotating gear, two sets of drive chain, two sets of motor, two sets of speed reducer, two sets of drive shafts, two sets of mounts, a pedestal, multiunit limiting plate and two sets of baffles, the multiunit rotating gear is connected through two sets of drive chain transmissions respectively, two sets of speed reducer are installed on the base through two sets of mounts respectively, two sets of motor are installed respectively at two sets of speed reducer input department, two sets of drive shafts are installed respectively at two sets of speed reducer output department, two sets of drive shafts are connected with arbitrary two sets of rotating gear respectively, the furnace body is half regional cavity down, furnace body top intercommunication is provided with the multiunit pipe of taking a breath.

Description

Roller-hearth steel pipe secondary heating furnace

Technical Field

The utility model relates to the technical field of steel pipe heating, in particular to a roller-hearth type steel pipe secondary heating furnace.

Background

As is well known, a roller hearth furnace has a chamber-shaped hearth, the hearth is composed of a furnace roller and a transmission mechanism, a workpiece is moved out of a heating furnace outside the furnace from a feeding end by the rotation of the furnace roller, when a steel pipe is processed or needs to be heated, the steel pipe needs to be fed into the heating furnace for heating, but the moving position of the steel pipe is inconvenient to limit due to the fact that the steel pipe is easy to rotate and roll, and when the steel pipe needs to be heated for the second time, the steel pipe needs to be taken out and then added into the furnace again, so that the processing difficulty is large, the processing time is long, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the roller-hearth steel pipe secondary heating furnace which can conveniently limit the moving direction of the steel pipe, reduce the rotation and rolling of the steel pipe, conveniently perform secondary heating treatment on the steel pipe, reduce the processing difficulty, shorten the processing time and improve the production efficiency.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a roller-hearth steel pipe secondary heating furnace comprises two groups of supporting frames, a furnace body, a plurality of groups of driving rollers, a plurality of groups of rotating gears, two groups of transmission chains, two groups of motors, two groups of speed reducers, two groups of driving shafts, two groups of fixing frames, a base, a plurality of groups of limiting plates and two groups of clapboards, wherein the two groups of supporting frames are both arranged on the base, the furnace body is arranged at the top of the two groups of supporting frames, the plurality of groups of limiting plates are both arranged at the top of the base, and a plurality of groups of through holes are respectively arranged on the plurality of groups of limiting plates, the plurality of groups of driving rollers respectively pass through the plurality of groups of through holes, and both ends of the plurality of groups of driving rollers respectively pass through the two groups of supporting frames and are rotatably connected with the two groups of supporting frames, the plurality of rotating gears are respectively arranged on the base through the two groups of fixing frames, the two sets of motors are respectively installed at the input ends of the two sets of speed reducers, the two sets of driving shafts are respectively installed at the output ends of the two sets of speed reducers, the two sets of driving shafts are respectively connected with any two sets of rotating gears, the lower half area of the furnace body is hollow, the two sets of partition plates are both installed in the furnace body, and the top of the furnace body is communicated with and provided with a plurality of sets of ventilation pipes.

The furnace body is characterized by comprising a plurality of groups of shunt tubes, a plurality of groups of nozzles, a plurality of groups of fixing tubes and a plurality of groups of feeding tubes, wherein the plurality of groups of shunt tubes penetrate through the side wall of the furnace body and extend into the furnace body, the plurality of groups of nozzles are respectively communicated with the plurality of groups of flow tubes, the plurality of groups of flow tubes are respectively communicated with the plurality of groups of fixing tubes, and the plurality of groups of feeding tubes are respectively communicated with the plurality of groups of fixing tubes.

The furnace body structure comprises a furnace body, and is characterized by comprising two groups of stop doors, a plurality of groups of cylinders and a plurality of groups of lifting rods, wherein the plurality of groups of cylinders are respectively arranged at two ends of the outer wall of the furnace body, two ends of the plurality of groups of lifting rods are respectively connected with two groups of cylinder output ends and two groups of stop doors, and the two groups of stop doors are respectively positioned at two sides of the furnace body.

The furnace body is characterized by comprising a plurality of groups of lifting rings and a plurality of groups of limiting frames, wherein the plurality of groups of lifting rings are respectively arranged at two ends of two groups of stop doors, the plurality of groups of lifting rings are respectively sleeved on the plurality of groups of limiting frames, and the plurality of groups of limiting frames are all arranged on the outer wall of the furnace body.

(III) advantageous effects

Compared with the prior art, the utility model provides a roller-hearth steel pipe secondary heating furnace which has the following beneficial effects: when the steel pipe needs to be heated, two groups of motors can be electrified and started, after the power output by the two groups of motors is reduced by two groups of speed reducers, two groups of driving shafts drive corresponding driving rollers to rotate, and a plurality of groups of driving rollers rotate simultaneously under the driving action of a plurality of groups of rotating gears and two groups of driving chains, simultaneously, two groups of clapboards separate the interior of the furnace body into two heating cavities and an intermediate cooling cavity, heating operation is respectively carried out in the two heating cavities, simultaneously, the steel pipe needing to be heated is respectively placed on the plurality of groups of driving rollers, the steel pipe driven on the driving rollers is conveniently separated under the action of a plurality of groups of limiting plates, simultaneously, the steel pipe can be transmitted into the furnace body to carry out primary heating, intermediate cooling and secondary heating, finally, the steel pipe is guided out of the furnace body along with the rotation of the driving rollers, thereby conveniently limiting the moving direction of the steel pipe and reducing the rotation and rolling of the steel pipe, and can conveniently carry out secondary heating to the steel pipe, reduce the processing degree of difficulty, shorten process time, improve production efficiency.

Drawings

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

FIG. 2 is a schematic view of the fitting structure of the furnace body and the partition plate;

FIG. 3 is a schematic view of the mating arrangement of the shunt tube, nozzle and mounting tube;

in the drawings, the reference numbers: 1. a support frame; 2. a furnace body; 3. a driving roller; 4. a rotating gear; 5. a drive chain; 6. a motor; 7. a speed reducer; 8. a drive shaft; 9. a fixed mount; 10. a base; 11. a limiting plate; 12. a partition plate; 13. a ventilation tube; 14. a shunt tube; 15. a nozzle; 16. a fixed tube; 17. a feed pipe; 18. a shutter; 19. a cylinder; 20. a lifting rod; 21. a lifting ring; 22. a limiting frame.

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. 1-3, a roller-hearth steel tube secondary heating furnace comprises two sets of supporting frames 1, a furnace body 2, a plurality of sets of driving rollers 3, a plurality of sets of rotating gears 4, two sets of driving chains 5, two sets of motors 6, two sets of speed reducers 7, two sets of driving shafts 8, two sets of fixing frames 9, a base 10, a plurality of sets of limiting plates 11 and two sets of partition plates 12, wherein the two sets of supporting frames 1 are both mounted on the base 10, the furnace body 2 is mounted on the tops of the two sets of supporting frames 1, the plurality of sets of limiting plates 11 are both mounted on the top of the base 10, and are respectively provided with a plurality of sets of through holes, the plurality of sets of driving rollers 3 respectively pass through the plurality of sets of through holes, and both ends of the plurality of sets of driving rollers 3 respectively pass through the two sets of supporting frames 1 and are rotatably connected with the two sets of supporting frames 1, the plurality of rotating gears 4 are respectively mounted on both ends of the plurality of driving rollers 3, and are respectively in transmission connection with the two sets of driving chains 5, two groups of speed reducers 7 are respectively arranged on a base 10 through two groups of fixing frames 9, two groups of motors 6 are respectively arranged at the input ends of the two groups of speed reducers 7, two groups of driving shafts are respectively arranged at the output ends of the two groups of speed reducers 7 and are respectively connected with any two groups of rotating gears 4, the lower half area of the furnace body 2 is hollow, two groups of partition plates 12 are both arranged in the furnace body 2, the top of the furnace body 2 is communicated with a plurality of groups of air exchange tubes 13, the furnace further comprises a plurality of groups of shunt tubes 14, a plurality of groups of nozzles 15, a plurality of groups of fixed tubes 16 and a plurality of groups of feeding tubes 17, the plurality of groups of shunt tubes 14 penetrate through the side wall of the furnace body 2 and extend into the furnace body 2, the plurality of groups of nozzles are respectively communicated with the plurality of groups of shunt tubes 14 and are respectively communicated with the plurality of groups of fixed tubes 16, the plurality of groups of feeding tubes 17 are respectively communicated with the plurality of groups of fixed tubes 16, and further comprises two groups of stop doors 18, a plurality of air cylinders 19 and a plurality of lifting rods 20, the multi-group cylinder 19 is respectively installed at two ends of the outer wall of the furnace body 2, two ends of the multi-group lifting rod 20 are respectively connected with the output ends of the two groups of cylinders 19 and the two groups of stop gates 18, the two groups of stop gates 18 are respectively located at two sides of the furnace body 2, the multi-group lifting rod further comprises a multi-group lifting ring 21 and a multi-group limiting frame 22, the multi-group lifting ring 21 is respectively installed at two ends of the two groups of stop gates 18, the multi-group lifting ring is respectively sleeved on the multi-group limiting frame 22, and the multi-group limiting frame 22 is installed on the outer wall of the furnace body 2.

The utility model relates to a roller-hearth steel pipe secondary heating furnace, which can be used for electrifying and starting two groups of motors 6 when a steel pipe needs to be heated, after the power output by the two groups of motors 6 is reduced by two groups of speed reducers 7, two groups of driving shafts 8 drive corresponding driving rollers 3 to rotate, and a plurality of groups of driving rollers 3 simultaneously rotate under the driving action of a plurality of groups of rotating gears 4 and two groups of driving chains 5, meanwhile, two groups of clapboards 12 divide the interior of a furnace body 2 into two heating cavities and an intermediate cooling cavity, fuel is respectively fed through a plurality of groups of feeding pipes 17 and is shunted into the furnace body 2 through a plurality of groups of shunt pipes 14 and a plurality of groups of nozzles 15, heating operation is respectively carried out in the two heating cavities, redundant gas or waste gas and the like are subjected to ventilation treatment through a plurality of groups of ventilation pipes 13, and simultaneously, the steel pipe which needs to be heated is respectively placed on the plurality of groups of driving rollers 3, and conveniently separate driven steel pipe on driving roller 3 under the effect of multiunit limiting plate 11, can transmit the steel pipe to the furnace body 2 simultaneously, once heat, intercooling and secondary heating, derive furnace body 2 along with the rotation of driving roller 3 at last, thereby can conveniently prescribe a limit to the moving direction of steel pipe, reduce the rotation and the roll of steel pipe, and can conveniently carry out the secondary heating to the steel pipe and handle, reduce the processing degree of difficulty, shorten process time, improve production efficiency, can control multiunit cylinder 19 according to the diameter of input steel pipe, make multiunit lifter 20 drive two sets of shutters 18 and carry out the lift processing, make things convenient for the smooth business turn over of steel pipe, can reduce thermal scattering and disappearing again, and when two sets of shutters 18 go up and down, can conveniently prescribe a limit to the moving direction of shutters 18 through multiunit elevator ring 21 along the removal of multiunit spacing frame 22.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A roller-hearth steel pipe secondary heating furnace is characterized by comprising two groups of supporting frames (1), a furnace body (2), a plurality of groups of driving rollers (3), a plurality of groups of rotating gears (4), two groups of driving chains (5), two groups of motors (6), two groups of speed reducers (7), two groups of driving shafts (8), two groups of fixing frames (9), a base (10), a plurality of groups of limiting plates (11) and two groups of partition plates (12), wherein the two groups of supporting frames (1) are all arranged on the base (10), the furnace body (2) is arranged at the tops of the two groups of supporting frames (1), the plurality of groups of limiting plates (11) are all arranged at the tops of the base (10), a plurality of groups of through holes are respectively arranged on the plurality of groups of limiting plates (11), the plurality of groups of driving rollers (3) respectively pass through the plurality of groups of through holes, and the two ends of the plurality of groups of driving rollers (3) respectively pass through the two groups of supporting frames (1) and are rotatably connected with the two groups of supporting frames (1), the multi-group rotating gear (4) is respectively installed at two ends of a multi-group transmission roller (3), the multi-group rotating gear (4) is respectively in transmission connection through two groups of transmission chains (5), two groups of speed reducers (7) are respectively installed on a base (10) through two groups of fixing frames (9), two groups of motors (6) are respectively installed at input ends of the two groups of speed reducers (7), two groups of driving shafts (8) are respectively installed at output ends of the two groups of speed reducers (7), two groups of driving shafts (8) are respectively connected with any two groups of rotating gears (4), the lower half area of the furnace body (2) is hollow, two groups of partition plates (12) are respectively installed in the furnace body (2), and the top of the furnace body (2) is communicated with a plurality of groups of air exchange pipes (13).

2. A roller hearth steel pipe secondary heating furnace according to claim 1, further comprising a plurality of groups of shunt tubes (14), a plurality of groups of nozzles (15), a plurality of groups of fixed tubes (16) and a plurality of groups of feed pipes (17), wherein the plurality of groups of shunt tubes (14) all penetrate through the side wall of the furnace body (2) and extend into the furnace body (2), the plurality of groups of nozzles (15) are respectively communicated with the plurality of groups of shunt tubes (14), the plurality of groups of shunt tubes (14) are respectively communicated with the plurality of groups of fixed tubes (16), and the plurality of groups of feed pipes (17) are respectively communicated with the plurality of groups of fixed tubes (16).

3. The roller hearth type steel pipe secondary heating furnace according to claim 2, further comprising two sets of shutters (18), a plurality of sets of cylinders (19) and a plurality of sets of lifting rods (20), wherein the plurality of sets of cylinders (19) are respectively installed at two ends of the outer wall of the furnace body (2), two ends of the plurality of sets of lifting rods (20) are respectively connected with two sets of output ends of the cylinders (19) and the two sets of shutters (18), and the two sets of shutters (18) are respectively located at two sides of the furnace body (2).

4. The roller hearth type steel pipe secondary heating furnace according to claim 3, further comprising a plurality of sets of lifting rings (21) and a plurality of sets of limiting frames (22), wherein the plurality of sets of lifting rings (21) are respectively installed at two ends of two sets of shutters (18), the plurality of sets of lifting rings (21) are respectively sleeved on the plurality of sets of limiting frames (22), and the plurality of sets of limiting frames (22) are all installed on the outer wall of the furnace body (2).

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