Heat treatment device for 12Cr2Mo1 steel large annular forgings

Abstract

The utility model relates to a heat treatment device for a 12Cr2Mo1 steel large annular forge piece. The heat treatment device comprises a treatment box, an L-shaped frame is rotationally arranged at the top of the treatment box, a movable pipe is rotationally arranged on the surface of the L-shaped frame, the bottom end of the movable pipe is fixedly connected with a flow dividing disc, and a plurality of first spray heads are fixedly installed on the lower surface of the flow dividing disc; and the inner bottom wall of the treatment box is fixedly connected with a flow guide column. The shunting disc is arranged at the top of the treatment box, and the first spray heads on the surface of the shunting disc and the second spray heads on the surface of the flow guide column in the treatment box can be used for spraying water to cool the inside and outside of an annular casting, so that the quenching effect on the annular forging is realized; and heated water during quenching can be rapidly discharged outwards through a hot water discharging pipe, meanwhile, cooling water is conveyed to a flow guide column and a flow dividing disc through a cooling water pipe, continuous cooling water supply to the interior of the treatment box is achieved, and the quenching efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to forging processing technical field especially relates to a 12Cr2Mo1 steel big annular forging heat treatment device. BACKGROUND

[0002] 12Cr2Mo1 steel is with chromium, molybdenum as main alloy element, has very high strength, plasticity and toughness, is widely used in petroleum, chemical industry, electric power, shipbuilding etc. industry. Chromium, molybdenum element can improve the strength of solid solution matrix, increase the organization stability of solid solution, play good solid solution strengthening effect. Molybdenum is relatively strong carbide forming element, can improve the high temperature strength of steel. In the heat treatment process of 12Cr2Mo1 steel big ring casting, quenching is an indispensable step in the heat treatment process.

[0003] In the prior art, Chinese patent CN219951154U discloses a ring-shaped forging heat treatment quenching tank, including pool body, the bottom wall of pool body concentrically arranged multiple annular pipes, the top of pipe is arranged with multiple liquid injection pipes along its axial direction, each pipe is connected with liquid injection mechanism. By setting multiple pipes, each pipe is controlled by independent liquid injection mechanism, and the corresponding size pipe can be started to work according to the size of ring-shaped forging.

[0004] The quenching tank in the above patent document is provided with several liquid injection pipes at the bottom of the quenching tank. Since the heights of ring-shaped castings are different, the liquid injection pipes cannot fully spray and cool the surface of the ring-shaped castings, and the cooling water in the quenching tank cannot be discharged in time after being heated, resulting in uneven cooling of the surface of the castings and affecting the efficiency of quenching.

[0005] Therefore, we improve it and propose a 12Cr2Mo1 steel big annular forging heat treatment device. SUMMARY

[0006] The utility model discloses a purpose in at overcoming above -mentioned insufficient, provide a kind of 12Cr2Mo1 steel big annular forging heat treatment device.

[0007] The utility model discloses a purpose in at overcoming above -mentioned insufficient, provide a kind of 12Cr2Mo1 steel big annular forging heat treatment device.

[0008] A 12Cr2Mo1 steel big annular forging heat treatment device, comprising a treatment box, an L-shaped frame is rotatably arranged on the top of the treatment box, an activity pipe is rotatably arranged on the surface of the L-shaped frame, a flow divider is fixedly connected to the bottom end of the activity pipe, a plurality of first spray heads are fixedly installed on the lower surface of the flow divider.

[0009] The inner bottom wall of the processing box is fixedly connected with a flow guide column, the flow guide column is a hollow shell structure, and a plurality of second spray heads are fixedly installed on the surface of the flow guide column, the lower surface of the processing box is fixedly connected with a collection shell, the lower surface of the processing box is provided with a drain hole, and the position of the collection shell corresponds to the drain hole;

[0010] By arranging the shunt disc on the top of the processing box, the first spray heads on the surface of the shunt disc and the plurality of second spray heads on the surface of the flow guide column in the processing box can be used to spray water to the inside and outside of the annular casting, so that the quenching effect of the annular forging is realized.

[0011] The back surface of the processing box is fixedly installed with a three-way box, the surface of the three-way box is fixedly embedded with a cooling water pipe, and the side surface of the collection shell is fixedly embedded with a heat removal water pipe.

[0012] Further, the back surface of the L-shaped frame is fixedly installed with a first water pump, the output end of the first water pump is fixedly connected with a first water conveying hose, and the end, away from the first water pump, of the first water conveying hose is rotatably connected with the top end of the movable pipe.

[0013] Further, the back surface of the L-shaped frame is fixedly installed with a driving motor, the output shaft of the driving motor is fixedly connected with a driving pulley, the surface of the movable pipe is fixedly provided with a driven pulley, and the surfaces of the driving pulley and the driven pulley are provided with a transmission belt.

[0014] Further, the lower surface of the three-way box is fixedly installed with a second water pump, the back surface of the collection shell is fixedly embedded with a flow guide water pipe, one end of the flow guide water pipe is fixedly connected with the output end of the second water pump, and the other end of the flow guide water pipe extends into the inside of the flow guide column.

[0015] Further, the inner wall of the drain hole is fixedly connected with a foreign matter filtering screen, and the foreign matter filtering screen is used for filtering impurities generated in quenching.

[0016] Further, the output end of the first water pump is fixedly connected with a second water conveying hose, and the end, away from the first water pump, of the second water conveying hose extends into the inside of the three-way box.

[0017] Further, the upper surface of the processing box is fixedly connected with two limiting plates, the two sides of the L-shaped frame are fixedly connected with positioning blocks, the positions of the positioning blocks correspond to the limiting plates, and the surface of each positioning block is provided with a positioning bolt.

[0018] Further, the surface of each limiting plate is provided with a positioning screw hole, the position of each positioning screw hole corresponds to the positioning bolt, and the size of each positioning screw hole matches the positioning bolt.

[0019] Compared with the prior art, the processing box has the advantages that:

[0020] The utility model provides a kind of heat treatment device of 12Cr2Mo1 steel large annular forge piece, by being provided with shunt disc on the top of treatment box, the inside and outside of annular casting can be sprayed cooling using the first spray head of shunt disc surface and the second spray head of several guide columns surface in treatment box, realize the quenching effect of annular forge piece, and the water heated during quenching can be rapidly discharged using heat removal water pipe, simultaneously, cooling water pipe is used to guide column and shunt disc are transported cooling water, realize the continuous cooling water supply in the inside of treatment box, improve the efficiency of quenching.

[0021] The utility model discloses through setting up L-shaped frame, can rotate L-shaped frame, to place annular casting into the inside of treatment box conveniently, and using positioning bolt and locating block are limited fixed to L-shaped frame, reach the purpose that it is convenient to use, through setting up movable pipe and drive motor, can use drive motor to drive shunt disc to rotate above treatment box, realize the effect of rotary sprinkling, improve the spraying range of first spray head. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the front view structure schematic drawing of the utility model.

[0023] Figure 2 It is the rear view structure schematic drawing of the utility model.

[0024] Figure 3 It is the side section structure schematic drawing of the utility model.

[0025] Figure 4 It is Figure 2 It is the enlarged structure schematic drawing of A place in.

[0026] Figure 5 It is the inside structure schematic drawing of treatment box of the utility model.

[0027] In the drawing:

[0028] 1, treatment box, 2, L-shaped frame, 3, movable pipe, 4, shunt disc, 5, first spray head, 6, guide column, 7, second spray head, 8, collection shell, 9, drain hole, 11, three-way box, 12, cooling water pipe, 13, heat removal water pipe, 14, first water pump, 15, first water hose, 16, drive motor, 17, drive pulley, 18, driven pulley, 19, transmission belt, 20, second water pump, 21, guide water, 22, impurity filter screen, 23, second water hose, 24, limit board, 25, locating block, 26, positioning bolt. DETAILED DESCRIPTION

[0029] For better understanding of the technical scheme of the utility model, the following will be combined with relevant drawing to make detailed description. It should be understood that the following specific embodiments are not used to limit the specific implementation of the technical scheme of the utility model, and it is only the implementation of the technical scheme of the utility model. It should be pointed out that the expression about the position relation of each component in this paper, such as A component is located above B component, is based on the expression of the relative position of each component in the drawing, and is not used to limit the actual position relation of each component. Embodiment 1

[0030] Referring to Figures 1-5 , Figure 1 A structure diagram of the heat treatment device of a 12Cr2Mo1 steel large annular forging of the utility model is drawn. As shown in the figure, the heat treatment device of a 12Cr2Mo1 steel large annular forging, comprising a treatment box 1, the top of the treatment box 1 is rotationally provided with an L-shaped frame 2, the surface of the L-shaped frame 2 is rotationally provided with a movable pipe 3, the bottom end of the movable pipe 3 is fixedly connected with a shunt disc 4, and the lower surface of the shunt disc 4 is fixedly installed with a plurality of first spray heads 5.

[0031] The upper surface of the treatment box 1 is fixedly connected with two limiting plates 24, and the two sides of the L-shaped frame 2 are fixedly connected with positioning blocks 25, the position of the positioning block 25 corresponds to the limiting plate 24, and the surface of the positioning block 25 is provided with a positioning bolt 26.

[0032] The surface of the limiting plate 24 is provided with a positioning screw hole, the position of the positioning screw hole corresponds to the positioning bolt 26, and the size of the positioning screw hole matches the positioning bolt 26.

[0033] The back surface of the L-shaped frame 2 is fixedly installed with a driving motor 16, the output shaft of the driving motor 16 is fixedly connected with a driving belt pulley 17, the surface of the movable pipe 3 is fixedly provided with a driven belt pulley 18, and the surfaces of the driving belt pulley 17 and the driven belt pulley 18 are installed with a transmission belt 19.

[0034] The inner bottom wall of the treatment box 1 is fixedly connected with a flow guide column 6, the flow guide column 6 is a hollow shell structure, and a plurality of second spray heads 7 are fixedly installed on the surface of the flow guide column 6, and the lower surface of the treatment box 1 is fixedly connected with a collection shell 8.

[0035] The lower surface of the treatment box 1 is provided with a drain hole 9, the position of the collection shell 8 corresponds to the drain hole 9, the inner wall of the drain hole 9 is fixedly connected with a impurity removal filter screen 22, and the impurity removal filter screen 22 is used for filtering the impurities generated by quenching.

[0036] The back surface of the treatment box 1 is fixedly installed with a three-way box 11, the surface of the three-way box 11 is fixedly embedded with a cooling water pipe 12, the surface of the cooling water pipe 12 is provided with an on-off valve, and the side surface of the collection shell 8 is fixedly embedded with a heat removal water pipe 13.

[0037] In this embodiment, the water heated by the heat of the casting during quenching can be quickly discharged through the exhaust water pipe 13, the cold water can be transported into the three-way box 11 through the cooling water pipe 12, the cold water can be input into the flow guide column 6 through the three-way box 11 and the flow guide water pipe 21, and the first water pump 14 is used to transport the cold water to the flow distribution disc 4, so that the surface of the casting is cooled, the continuous cooling water supply in the treatment box 1 is realized, and the quenching efficiency is improved.

[0038] The lower surface of the three-way box 11 is fixedly provided with the second water pump 20, the back surface of the collection shell 8 is fixedly provided with the flow guide water pipe 21, one end of the flow guide water pipe 21 is fixedly connected with the output end of the second water pump 20, and the other end of the flow guide water pipe 21 extends into the flow guide column 6.

[0039] In this embodiment, the first spray head 5 on the surface of the flow distribution disc 4 and the second spray head 7 on the surface of the flow guide column 6 in the treatment box 1 are used to spray water to the inner and outer surfaces of the annular casting, so that the quenching effect of the annular forging is realized.

[0040] The back surface of the L-shaped frame 2 is fixedly provided with the first water pump 14, the output end of the first water pump 14 is fixedly connected with the first water conveying hose 15, and the end, away from the first water pump 14, of the first water conveying hose 15 is rotatably connected with the top end of the movable pipe 3.

[0041] In this embodiment, the output end of the first water pump 14 is fixedly connected with the second water conveying hose 23, and the end, away from the first water pump 14, of the second water conveying hose 23 extends into the three-way box 11.

[0042] In this embodiment, the L-shaped frame 2 is provided, when the annular casting is placed, the L-shaped frame 2 is rotated backward, the flow distribution disc 4 is moved away from the top of the treatment box 1, the annular casting is conveniently placed into the treatment box 1, then the L-shaped frame 2 is reset, and the L-shaped frame 2 and the limiting plate 24 are fixed through the positioning screw 26 and the positioning block 25.

[0043] Working principle:

[0044] The heat treatment device for the 12Cr2Mo1 steel large annular forging is used, the annular casting is first placed into the treatment box 1, then the switch valve on the surface of the cooling water pipe 12 is opened, the first water pump 14 and the second water pump 20 are used to simultaneously transport cooling water into the flow guide column 6 and the flow distribution disc 4, and the first spray head 5 and the second spray head 7 are used to spray the annular casting, so that the annular casting is quickly quenched, the water heated during the quenching process in the treatment box 1 enters the collection shell 8 through the drain hole 9, and is discharged through the exhaust water pipe 13, and the cooling effect is improved through the continuous input of the cooling water through the cooling water pipe 12.

[0045] The above is only a specific application example of the present application, and does not constitute any limitation on the protection scope of the present application. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the present application.

Claims

1. A heat treatment device for a 12Cr2Mo1 steel large ring-shaped forging, characterized in that: Including processing box (1), the top of processing box (1) is rotationally provided with L-shaped frame (2), the surface of L-shaped frame (2) is rotationally provided with movable pipe (3), the bottom end of movable pipe (3) is fixedly connected with shunt disc (4), the lower surface of shunt disc (4) is fixedly installed with a plurality of first spray heads (5); The inner bottom wall of processing box (1) is fixedly connected with flow guide column (6), flow guide column (6) is a hollow shell structure, and a plurality of second spray heads (7) are fixedly installed on the surface of flow guide column (6), the lower surface of processing box (1) is fixedly connected with collection shell (8), the lower surface of processing box (1) is provided with drain hole (9), the position of collection shell (8) corresponds to drain hole (9); The back of processing box (1) is fixedly installed with three-way box (11), the surface of three-way box (11) is fixedly embedded with cooling water pipe (12), the side of collection shell (8) is fixedly embedded with heat removal water pipe (13).

2. The heat treatment device for a 12Cr2Mo1 steel large annular forge piece according to claim 1, characterized in that, The back of L-shaped frame (2) is fixedly installed with first water pump (14), the output end of first water pump (14) is fixedly connected with first water hose (15), and the end, away from first water pump (14), of first water hose (15) is rotationally connected with the top end of movable pipe (3).

3. The heat treatment device for a 12Cr2Mo1 steel large annular forge piece according to claim 1, characterized in that, The back of L-shaped frame (2) is fixedly installed with driving motor (16), the output shaft of driving motor (16) is fixedly connected with driving pulley (17), the surface of movable pipe (3) is fixedly provided with driven pulley (18), and the surfaces of driving pulley (17) and driven pulley (18) are fixedly installed with transmission belt (19).

4. The heat treatment device for a 12Cr2Mo1 steel large annular forge piece according to claim 1, characterized in that, The lower surface of three-way box (11) is fixedly installed with second water pump (20), the back of collection shell (8) is fixedly embedded with flow guide water pipe (21), one end of flow guide water pipe (21) is fixedly connected with the output end of second water pump (20), and the other end of flow guide water pipe (21) extends into the inside of flow guide column (6).

5. The heat treatment device for a 12Cr2Mo1 steel large annular forge piece according to claim 1, characterized in that, The inner wall of drain hole (9) is fixedly connected with impurity removal filter screen (22), and impurity removal filter screen (22) is used for filtering impurities generated during quenching.

6. The heat treatment device for a 12Cr2Mo1 steel large annular forge piece according to claim 2, characterized in that, The output end of first water pump (14) is fixedly connected with second water hose (23), and the end, away from first water pump (14), of second water hose (23) extends into the inside of three-way box (11).

7. The heat treatment device for a 12Cr2Mo1 steel large annular forge piece according to claim 1, characterized in that, The upper surface of processing box (1) is fixedly connected with two limiting plates (24), the two sides of L-shaped frame (2) are both fixedly connected with positioning blocks (25), the positions of positioning blocks (25) correspond to limiting plates (24), and the surface of positioning block (25) is provided with positioning bolt (26).

8. The heat treatment device for a 12Cr2Mo1 steel large annular forge piece according to claim 7, characterized in that, The surface of limiting plate (24) is provided with positioning screw hole, the position of positioning screw hole corresponds to positioning bolt (26), and the size of positioning screw hole matches with positioning bolt (26).

Images