CN201648468U

CN201648468U - Roller-hearth type solid solution furnace

Info

Publication number: CN201648468U
Application number: CN2010201560652U
Authority: CN
Inventors: 宋建新; 章建新; 吉国新
Original assignee: JIANGSU WUJIN STAINLESS STEEL PIPE GROUP CO Ltd
Current assignee: JIANGSU WUJIN STAINLESS STEEL PIPE GROUP CO Ltd
Priority date: 2010-03-30
Filing date: 2010-03-30
Publication date: 2010-11-24
Anticipated expiration: 2020-03-30

Abstract

The utility model discloses a roller-hearth type solid solution furnace for the solution treatment of the stainless steel tube, which comprises a heating furnace and a cooling chamber adjacent to the heating furnace; wherein, the feed end of the heating furnace is provided with a feed trolley for feeding the steel tube to the heating furnace; the discharge end of the cooling chamber is provided with a discharge trolley for removing the steel tube subjected to the solution treatment; the feed trolley and the discharge trolley are respectively provided with a rotary device which can clamp the steel tube and drive the steel tube to turn around; the rotary device includes carrier rollers rotationally respectively arranged at two sides of the lower end of the steel tube and a pressure roller which is arranged in the upper part of the steel tube and flexibly presses the steel tube. Driven by the rotary device, the steel tube to be subjected to the solution treatment is fed to the heating furnace and then heated, which throughout keeps rotating, therefore the problem that the stainless steel tube when subjected to the solution treatment is heated unevenly and easily deformed is solved.

Description

Roller-hearth solution furnace

Technical field

The utility model relates to the metal heat treatmet technical field, especially a kind of roller-hearth solution furnace that can carry out solution treatment to stainless-steel pipe before cold-drawn.

Background technology

The stainless steel pipe is made hollow billet after heating, hot piercing, hollow billet by pickling after cold-drawn or cold rolling processing, make satisfactory stainless-steel pipe, before cold-drawn or cold rolling processing, in order to improve material structure, improve the stainless steel structure property, usually to carry out solution treatment to the stainless steel hollow billet after the pickling, to make its weave construction be supersaturated solid solution or only be present in a kind of sosoloid phase of pyritous usually, on thermodynamics, be in metastable state, under suitable temperature or stress condition, precipitation or other transformations can take place.In production field, carry out at present solution treatment solid solution stove commonly used, when it enters body of heater at steel pipe, generally all be to adopt roller-way directly to carry, carry out solution treatment by certain speed by the solid solution stove, after the cooling room cooling, send outside the body of heater, the greatest problem that the mode of this conveying steel pipe exists is: steel pipe self is not rotate in course of conveying, steel pipe straightaway and when being heated in body of heater, because the setting of heated nozzle can not circumferentially be provided with around steel pipe fully, steel pipe is when heating, directly the regional temperature that is arrived by flame spraying is higher, the temperature at other positions is then relatively low, causes the steel pipe integral inequality of being heated, and steel pipe is easy to generate metamorphism, be unfavorable for follow-up cold-drawn processing, even the generation steel pipe is scrapped.

The utility model content

The technical problems to be solved in the utility model is: overcome the deficiency in the prior art, a kind of roller-hearth solution furnace is provided, the inequality of being heated that the solution stainless steel tube exists when carrying out solution treatment, the problem that is easy to generate distortion.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of roller-hearth solution furnace, be used for stainless steel tube is carried out solution treatment, comprise process furnace and with the cooling room of the adjacent setting of process furnace, the feed end of process furnace is provided with the Material feeding trolley of steel pipe being sent into process furnace, the discharge end of cooling room is provided with and goes out trolley with what the steel pipe after the solution treatment shifted out, described Material feeding trolley can clamp steel pipe and drive the swivel arrangement that steel pipe rotates with going out to be respectively equipped with on the trolley, and described swivel arrangement comprises that rotating branch is located at the carrying roller of both sides, steel pipe lower end and is positioned at the pressure roller that steel pipe top elasticity is pushed down steel pipe.

Carry steadily for guaranteeing steel pipe, the charging fire door end of described process furnace is provided with the support roller group that can carry out supplemental support to steel pipe that Material feeding trolley send, the discharge door end of cooling room is provided with the support roller group that can carry out supplemental support to the steel pipe after the solution treatment, and described support roller group comprises that relative steel pipe centrosymmetry is provided with and height, a pair of support roller that width is adjustable.

Particularly, described support roller group also comprises bearing, liftable V-arrangement carriage and is located at the propelling oil cylinder that is positioned at V-arrangement carriage below in the bearing, advance the piston rod and the V-arrangement carriage bottom of oil cylinder to be connected, be arranged with at least two pilot holes that support roller is installed on the two inboard inclined-planes of V-arrangement carriage.

Because steel pipe is in rotating state in course of conveying, produce cut at outer surface of steel tube for preventing support roller when the supporting steel pipe, described support roller is a universal wheel.

For compressing and make the steel pipe rotation, described swivel arrangement comprises and is located at Material feeding trolley and goes out support on the trolley, support is provided with liftable retaining plate, carrying roller is fixed on the retaining plate and by the rotating machine drive by the roller seat adjustable ground and rotates, be positioned at steel pipe top on the support and be provided with clamping motor, clamping motor drives the pressure roller lifting and pushes down or break away from steel pipe.

Further, described swivel arrangement also comprises roller seat, pressure roller is fixed on the roller seat, clamping motor is connected with screw mandrel, roller seat is provided with guide pillar, roller seat is connected with web plate by guide pillar, and web plate and screw mandrel are fixed, and is set with compression spring on the guide pillar between web plate and the roller seat.

Be the oscilaltion of realization carrying roller and the adjusting of left and right sides width between centers, lifting offers the elongated groove opening that is used to regulate width between centers between the carrying roller to described retaining plate on the roller seat by the hoist cylinder promotion that is located at the support bottom.

Described Material feeding trolley and go out trolley and all have drive-motor to drive and on the ground track that is laid in, move, described track comprises plate rail and the tooth bar that be arranged in parallel, and drive-motor drives Material feeding trolley and goes out trolley by the wheel and rack engaged transmission and moves.

The beneficial effects of the utility model are: the utility model is by the drive of swivel arrangement, making needs the stainless steel tube of solution treatment when the heating of turnover process furnace, steel pipe self is in rotating state all the time, thereby make the steel pipe integral homogeneous heating, prevent the metamorphism that steel pipe produces owing to the inequality of being heated in heat-processed, helped the stable of quality product.

Description of drawings

Below in conjunction with drawings and embodiments the utility model is further specified.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 be among Fig. 1 A to shown in support roller group structure enlarged diagram.

Fig. 4 is the vertical view of Fig. 3.

1. process furnace, 2. cooling rooms, 3. Material feeding trolley 4. go out trolley 5. swivel arrangements 50. carrying rollers 51. supports 52. retaining plates 53. roller seats 531. elongated groove openings 54. rotating machines 55. hoist cylinders 60. pressure rollers 61. clamping motors 62. roller seats 63. screw mandrels 64. guide pillars 65. web plates 66. compression springs 7. support roller groups 70. support rollers 71. bearing 72.V shape carriages 721. pilot holes 73. propelling oil cylinders 8. drive-motor 9. plate rails 10. tooth bars 11. gears among the figure

Embodiment.

In conjunction with the accompanying drawings the utility model is further described now.The synoptic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.

As Fig. 1～a kind of roller-hearth solution furnace shown in Figure 4, be used for stainless steel tube is carried out solution treatment, comprise process furnace 1 that steel pipe is heated and the steel pipe after the heating is carried out refrigerative cooling room 2 with process furnace 1 adjacent being provided for, the feed end of process furnace 1 is provided with the Material feeding trolley 3 of steel pipe being sent into process furnace, the discharge end of cooling room 2 is provided with and goes out trolley 4 with what the steel pipe after the solution treatment shifted out, described Material feeding trolley 3 and go out trolley 4 and all have drive-motor 8 to drive and on the ground track that is laid in, move, described track comprises plate rail 9 and the tooth bar 10 that be arranged in parallel, and drive-motor 8 drives Material feeding trolley 3 and goes out trolley 4 by gear 11 and tooth bar 10 engaged transmission and moves.

Material feeding trolley 3 with go out trolley 4 on be respectively equipped with the identical swivel arrangement of structure 5, swivel arrangement 5 will treat that the steel pipe of solution treatment clamps and drive the steel pipe rotation, described swivel arrangement 5 comprises support 51, support 51 is fixed on Material feeding trolley 3 and goes out on the trolley 4, support 51 bottoms are provided with retaining plate 52, retaining plate 52 is provided with two corresponding roller seats 53, roller seat 53 is provided with carrying roller 50, carrying roller 50 surfaces are made by high-toughness wear-resistant rubber, two carrying rollers were located at reason steel pipe of living in lower end supported on both sides in 50 minutes and live steel pipe, carrying roller 50 clamps the back at steel pipe and is driven and rotated by rotating machine 54, support 51 bottoms are provided with hoist cylinder 55, the piston rod of hoist cylinder 55 is connected with retaining plate 52, can make retaining plate 52 oscilaltions by the effect of hoist cylinder 55 during use, regulate the centre-height of carrying roller 50, roller seat 53 is bolted to connection with retaining plate 52, wherein the connecting hole on the roller seat 53 is an elongated groove opening 531, can regulate width between centers between the carrying roller 50, satisfy the use needs of different size steel pipe, certainly, the mode of regulating carrying roller 50 height and width between centers is not limited only to this, also can adopt turn-screw, modes such as slide rail realize.

Swivel arrangement 5 also comprises and is located at clamping motor 61 and the roller seat 62 that is positioned at steel pipe top on the support 51, clamping motor 61 is connected with screw mandrel 63, be fixed with the pressure roller 60 that to push down steel pipe on the roller seat 62, screw mandrel 63 lower ends are fixed with web plate 65, roller seat 62 is provided with guide pillar 64, roller seat 62 is connected with web plate 65 by guide pillar 64, on the guide pillar 64 between web plate 65 and the roller seat 62, be set with compression spring 66, by clamping motor 61 and screw mandrel 63 effects, pressure roller 60 is moved up and down and push down or break away from steel pipe, simultaneously because the effect of compression spring 66, pressure roller 60 has certain elasticity when pushing down steel pipe, thereby has prevented the situation that does not press tightly that exists deviation from circular to produce owing to steel pipe.

Carry steadily for guaranteeing steel pipe, the charging fire door end of described process furnace 1 and the discharge door end of cooling room 2 are equipped with support roller group 7, the support roller group 7 of process furnace 1 charging fire door end can be carried out supplemental support to Material feeding trolley 3 steel pipe that send, and the support roller group 7 of the discharge door end of cooling room 2 can support the steel pipe after the solution treatment.As Fig. 3, shown in Figure 4, described support roller group 7 comprises bearing 71, liftable V-arrangement carriage 72 and be located at the propelling oil cylinder 73 that is positioned at V-arrangement carriage 72 belows in the bearing 71, advance the piston rod and V-arrangement carriage 72 bottoms of oil cylinder 73 to be connected, two inboard inclined-planes of V-arrangement carriage 72 are provided with symmetric three pilot holes 721, the support roller 70 that is used for supporting steel pipe is installed in the pilot hole 721, because steel pipe is in rotating state in course of conveying, for preventing that support roller 70 from producing cut at outer surface of steel tube when the supporting steel pipe, support roller 70 described in the utility model is a universal wheel, like this when the steel pipe that supports in rotating, because universal wheel is spherical, be the some contact with contacting of steel pipe, greatly reduce the situation that steel tube surface is produced cut, help improving the quality of products, support roller 70 can be realized by advancing oil cylinder 73 in the adjusting of short transverse, and the setting of three pilot holes 721 also can satisfy different tube diameters the time in the adjusting of width, certainly the setting of pilot hole 721 quantity can be decided according to processing steel pipe specification on the two inboard inclined-planes of V-arrangement carriage 72, but at least more than two, to satisfy bigger user demand.

Working process brief introduction of the present utility model is as follows: the stainless steel tube that will handle with the crane in the workshop hangs on the carrying roller 50 on the Material feeding trolley 3, start hoist cylinder 55 and regulate carrying roller 50 to suitable height, starting rotating machine 54 makes carrying roller 50 rotations and starts clamping motor 61 simultaneously, pressure roller 60 is descended compress steel pipe, steel pipe rotates under the acting in conjunction of carrying roller 50 that rotates and the pressure roller 60 that compresses, restarting drive-motor 8 makes Material feeding trolley 3 advance towards process furnace 1 direction, and the speed of adjustment Material feeding trolley 3, guarantee that the treatment time of steel pipe in process furnace 1 reaches requirement; When the steel pipe the other end of handling well when cooling room 2 discharge ends come out to arrive carrying roller 50 on the discharging dolly 4, unclamp on the Material feeding trolley 3 clamping to steel pipe, and Material feeding trolley 4 is returned to starting point fast begin to load and transport next root steel pipe, meanwhile, start the swivel arrangement 5 that on the trolley 4, operating process according to Material feeding trolley 3 upper rotary devices, steel pipe is clamped and drives the steel pipe rotation, restart drive-motor 8, go out trolley 4 steel pipe is shifted out process furnace 1 and cooling room 2, the steel pipe that will handle well with crane hangs out trolley 4.

The foregoing description only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage that is familiar with this technology can understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection domain of the present utility model.

Claims

1. roller-hearth solution furnace, be used for stainless steel tube is carried out solution treatment, comprise process furnace (1) and with the cooling room (2) of the adjacent setting of process furnace (1), the feed end of process furnace (1) is provided with the Material feeding trolley (3) of steel pipe being sent into process furnace (1), the discharge end of cooling room (2) is provided with and goes out trolley (4) with what the steel pipe after the solution treatment shifted out, it is characterized in that: described Material feeding trolley (3) and going out is respectively equipped with on the trolley (4) and can clamps steel pipe and drive the swivel arrangement (5) that steel pipe rotates, and described swivel arrangement (5) comprises that rotating branch is located at the carrying roller of both sides, steel pipe lower end (50) and is positioned at the pressure roller (60) that elasticity above the steel pipe is pushed down steel pipe.

2. roller-hearth solution furnace according to claim 1, it is characterized in that: the charging fire door end of described process furnace (1) is provided with the support roller group (7) that can carry out supplemental support to Material feeding trolley (3) steel pipe that send, the discharge door end of cooling room (2) is provided with the support roller group (7) that can carry out supplemental support to the steel pipe after the solution treatment, and described support roller group (7) comprises that relative steel pipe centrosymmetry is provided with and height, a pair of support roller (70) that width is adjustable.

3. roller-hearth solution furnace according to claim 2, it is characterized in that: described support roller group (7) also comprises bearing (71), liftable V-arrangement carriage (72) and is located at the propelling oil cylinder (73) that is positioned at V-arrangement carriage (72) below in the bearing (71), advance the piston rod and V-arrangement carriage (72) bottom of oil cylinder (73) to be connected, be arranged with at least two pilot holes (721) that support roller (70) is installed on the two inboard inclined-planes of V-arrangement carriage (72).

4. roller-hearth solution furnace according to claim 2 is characterized in that: described support roller (70) is a universal wheel.

5. roller-hearth solution furnace according to claim 1, it is characterized in that: described swivel arrangement (5) comprises and is located at Material feeding trolley (3) and goes out support (51) on the trolley (4), support (51) is provided with liftable retaining plate (52), carrying roller (50) is fixed on retaining plate (52) by roller seat (53) adjustable ground and upward and by rotating machine (54) drive rotates, be positioned at steel pipe top on the support (51) and be provided with clamping motor (61), clamping motor (61) drives pressure roller (60) lifting and pushes down or break away from steel pipe.

6. roller-hearth solution furnace according to claim 5, it is characterized in that: described swivel arrangement (5) also comprises roller seat (62), pressure roller (60) is fixed on the roller seat (62), clamping motor (61) is connected with screw mandrel (63), roller seat (62) is provided with guide pillar (64), roller seat (62) is connected with web plate (65) by guide pillar (64), web plate (65) is fixing with screw mandrel (63), is set with compression spring (66) on the guide pillar (64) between web plate (65) and the roller seat (62).

7. roller-hearth solution furnace according to claim 5, it is characterized in that: lifting offers the elongated groove opening (531) that is used to regulate width between centers between the carrying roller (50) to described retaining plate (52) on the roller seat (53) by hoist cylinder (55) promotion that is located at support (51) bottom.

8. roller-hearth solution furnace according to claim 1, it is characterized in that: described Material feeding trolley (3) and go out trolley (4) and all have drive-motor (8) to drive and on the ground track that is laid in, move, described track comprises plate rail (9) and the tooth bar (10) that be arranged in parallel, and drive-motor (8) drives Material feeding trolley (3) by gear (11) and tooth bar (10) engaged transmission and goes out trolley (4) and moves.