阅读说明：本技术 一种球墨铸铁曲轴热处理的高效冷却装置 (Efficient cooling device for heat treatment of nodular cast iron crankshaft ) 是由 张福新 于 2019-12-04 设计创作，主要内容包括：本发明涉及球墨铸铁曲轴热处理领域,具体的公开了一种球墨铸铁曲轴热处理的高效冷却装置,包括加工平台、支腿、电机架和底板；电机的输出轴上同轴固定安装有水平加工平台转盘；所述加工平台的中部上固定安装有冷却箱体,在冷却箱体内穿设有竖直的升降放置架,在升降放置架内固定安装有若干个水平的层板；在所述冷却箱体内通入有送风管；所述升降放置架的外侧套设有矩形框结构的移动风箱。本发明设置升降放置架,使球墨铸铁曲轴置于其中,并且在冷却箱体内冷却,从冷却箱体内流出的冷气也是在升降放置架内流动,充分利用冷气；移动风箱在电机的带动下左右移动,移动风箱推动冷却箱体内的气体水平流动,使内部气体流动方向改变。(The invention relates to the field of heat treatment of nodular cast iron crankshafts, and particularly discloses an efficient cooling device for heat treatment of the nodular cast iron crankshafts, which comprises a processing platform, supporting legs, a motor frame and a bottom plate, wherein the processing platform is arranged on the bottom plate; a horizontal processing platform turntable is coaxially and fixedly installed on an output shaft of the motor; a cooling box body is fixedly arranged on the middle part of the processing platform, a vertical lifting placing frame penetrates through the cooling box body, and a plurality of horizontal laminates are fixedly arranged in the lifting placing frame; an air supply pipe is introduced into the cooling box body; the outside cover of lift rack is equipped with the removal bellows of rectangle frame structure. The invention is provided with the lifting placement rack, so that the nodular cast iron crankshaft is placed in the lifting placement rack, the nodular cast iron crankshaft is cooled in the cooling box body, and cold air flowing out of the cooling box body also flows in the lifting placement rack, so that the cold air is fully utilized; the movable air box moves left and right under the driving of the motor, and pushes the gas in the cooling box to flow horizontally, so that the flowing direction of the gas in the cooling box is changed.)

1. An efficient cooling device for heat treatment of a nodular cast iron crankshaft comprises a processing platform (1), supporting legs (2), a motor frame (3) and a bottom plate (21); the processing platform (1) and the bottom plate (21) are horizontally arranged in parallel, and a plurality of vertical supporting legs (2) are fixedly connected between the bottom plate (21) and the processing platform (1); the motor frame (3) is fixedly arranged on the upper surface of the processing platform (1), a vertically downward motor (4) is arranged in the motor frame (3), and a horizontal processing platform turntable (10) is coaxially and fixedly arranged on an output shaft of the motor (4); the machining platform is characterized in that a cooling box body (5) is fixedly installed on the middle of the machining platform (1), a vertical lifting placing frame (7) penetrates through the cooling box body (5), the lower end of the lifting placing frame (7) penetrates out of the machining platform (1) downwards, and an opening is formed in the top of the cooling box body (5) corresponding to the upper end of the lifting placing frame (7); the lifting placing frame (7) is of a rectangular frame structure, the opening of the lifting placing frame faces the left side and the right side, a plurality of horizontal laminates (17) are fixedly arranged in the lifting placing frame (7), and the interior of the lifting placing frame (7) is divided into a plurality of chambers; the lower end of the lifting placing frame (7) is fixedly connected with a vertical ejector rod (16), and the lower end of the ejector rod (16) is fixed on an output shaft of a hydraulic cylinder (15); an air supply pipe (20) is introduced into the cooling box body (5).

2. The efficient cooling device for heat treatment of the nodular cast iron crankshaft as claimed in claim 1, wherein: the other end of the blast pipe (20) is communicated with a dry ice maker (6) positioned on the processing platform (1).

3. The efficient cooling device for heat treatment of the nodular cast iron crankshaft as claimed in claim 1, wherein: each laminate (17) is fixedly provided with a placing plate (18), and the placing plate (18) is provided with a plurality of air guide holes (19) in the vertical direction and the horizontal direction.

4. The efficient cooling device for heat treatment of the nodular cast iron crankshaft as claimed in claim 3, wherein: the air guide hole (19) in the horizontal direction is communicated with the vertical direction.

5. The efficient cooling device for heat treatment of the nodular cast iron crankshaft as claimed in claim 3, wherein: the thickness of the placing plate (18) is 20-40 mm.

6. A highly efficient cooling device for heat treatment of nodular cast iron crankshaft according to any of claims 1 to 5, characterized in that: the outside cover of lift rack (7) is equipped with removal bellows (8) of rectangle frame structure, removes bellows (8) and is located cooling box (5), and remove bellows (8) with carousel (10) parallel and level, the footpath of carousel (10) is upwards rotated through first round pin axle (11) and is connected with horizontally connecting rod (9), the other one end of connecting rod (9) stretches into in cooling box (5), the tip rotates through second round pin axle (12) and connects on removing bellows (8) lateral wall.

7. The efficient cooling device for heat treatment of the nodular cast iron crankshaft as claimed in claim 6, wherein: and the other side of the movable air box (8) is fixedly connected with a guide rod (13) penetrating out of the cooling box body (5), and the guide rod (13) is in clearance fit with the cooling box body (5).

8. The efficient cooling device for heat treatment of the nodular cast iron crankshaft as claimed in claim 7, wherein: the inner end of the cooling box body (5) corresponding to the blast pipe (20) is communicated with a plurality of air nozzles (14) positioned in the movable air box (8).

Technical Field

The invention relates to the field of heat treatment of nodular cast iron crankshafts, in particular to an efficient cooling device for heat treatment of the nodular cast iron crankshafts.

Background

In order to ensure that the performance of the nodular cast iron crankshaft reaches a higher level and the nodular cast iron crankshaft is unified in mass production, the stable process of the heat treatment process of the nodular cast iron crankshaft is ensured, the cooling link after the heat treatment is more important, and a series of tools and mechanisms including clamping, transportation, cooling and the like are required to be designed in order to realize the uniform cooling and controllable cooling of the heated crankshaft in the cooling process; in order to ensure that the casting can be uniformly cooled in the cooling process, air cooling or water cooling and other modes become commonly adopted technologies. The existing air cooling device is characterized in that a nodular cast iron crankshaft is conveyed into a cooling box through a conveying belt and then directly conveyed out, continuous feeding is realized, cooling time is limited, cold air is poor in internal fluidity, the cooling effect of the cold air is poor, and therefore the existing cooling device needs to be improved.

Disclosure of Invention

The invention aims to provide a high-efficiency cooling device for heat treatment of a nodular cast iron crankshaft, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an efficient cooling device for heat treatment of a nodular cast iron crankshaft comprises a processing platform, supporting legs, a motor frame and a bottom plate; the processing platform and the bottom plate are horizontally arranged in parallel, a plurality of vertical supporting legs are fixedly connected between the bottom plate and the processing platform to support the processing platform, and the processing platform is kept above the bottom plate; the motor frame is fixedly arranged on the upper surface of the processing platform, a vertically downward motor is arranged in the motor frame, a horizontal processing platform turntable is coaxially and fixedly arranged on an output shaft of the motor, and the turntable is driven to rotate by the motor; a cooling box body is fixedly installed on the middle part of the processing platform, a vertical lifting placing rack penetrates through the cooling box body, the lower end of the lifting placing rack penetrates out of the processing platform, an opening is formed in the top of the cooling box body corresponding to the upper end of the lifting placing rack, the lifting placing rack can penetrate out of the top of the cooling box body, and the lower end of the lifting placing rack extends into the cooling box body upwards; the lifting rack is of a rectangular frame structure, the opening of the lifting rack faces the left side and the right side, a plurality of horizontal laminates are fixedly installed in the lifting rack, the lifting rack is divided into a plurality of cavities, and the nodular cast iron crankshaft is placed in the cavities for cooling; the lower end of the lifting placing frame is fixedly connected with a vertical ejector rod, the lower end of the ejector rod is fixed on an output shaft of a hydraulic cylinder, the lifting placing frame is driven by the hydraulic cylinder to lift, so that different layer plates are flush with the upper surface of the processing platform, and the nodular cast iron crankshaft on the layer plates is cooled conveniently; an air supply pipe is introduced into the cooling box body.

Further: the other end of the blast pipe is communicated with a dry ice manufacturing machine on the processing platform, and the dry ice manufacturing machine generates cold air and sends the cold air into the cooling box body to reduce the temperature in the cooling box body.

Further: a placing plate is fixedly arranged on each laminate, and a plurality of air guide holes in the vertical direction and the horizontal direction are formed in the placing plate.

Further: the air guide holes in the horizontal direction are communicated with the air guide holes in the vertical direction, so that the inside of the air guide holes is formed into a communicated structure, and cold air can flow in the air guide holes, is convenient to contact with the nodular cast iron crankshaft placed on the air guide holes, and improves the cooling efficiency.

Further: the thickness of the placing plate is 20-40 mm.

Further: the outside cover of lift rack is equipped with the removal bellows of rectangle frame structure, remove bellows and be located the cooler bin, and remove bellows with the carousel parallel and level, the footpath of carousel is radially rotated through first round pin axle and is connected with the horizontally connecting rod, the other one end of connecting rod stretches into in the cooler bin, the tip passes through the second round pin axle and rotates to be connected on removing bellows lateral wall, at carousel pivoted in-process because eccentric arrangement's first round pin axle, thereby the push-and-pull connecting rod, realize the push-and-pull to removing bellows, change the position of removing bellows, utilize and remove bellows to promote inside gas flow, avoid inside cooling dead angle.

Further: and a guide rod penetrating through the cooling box body is fixedly connected to the other side of the movable air box, and the guide rod is in clearance fit with the cooling box body, so that the movable air box only moves in the left-right direction.

Further: the cooling box inner end that the blast pipe corresponds is gone up the intercommunication and is had a plurality of air nozzle that is located the removal bellows, makes during air conditioning directly sends into the removal bellows, utilizes the removal bellows to promote inside air conditioning and flows, is convenient for directly contact with the nodular cast iron bent axle in the lift rack.

Compared with the prior art, the invention has the beneficial effects that: the lifting rack is arranged, so that the nodular cast iron crankshaft is arranged in the lifting rack and is cooled in the cooling box body, and cold air flowing out of the cooling box body also flows in the lifting rack, so that the cold air is fully utilized, and the waste of the cold air is reduced; the movable air box moves left and right under the driving of the motor, the movable air box pushes the gas in the cooling box to horizontally flow, the flowing direction of the gas inside the cooling box is changed, the gas is contacted with the cooling dead angle of the nodular cast iron crankshaft, the heat is absorbed more uniformly and efficiently, and the effect of rapid cooling is achieved.

Drawings

FIG. 1 is a schematic structural diagram of a high-efficiency cooling device for heat treatment of a nodular cast iron crankshaft.

Fig. 2 is a schematic structural diagram of a lifting and placing rack in an efficient cooling device for nodular cast iron crankshaft heat treatment.

FIG. 3 is a schematic view showing the structure of a moving air box in a highly efficient cooling apparatus for heat treatment of a nodular cast iron crankshaft.

In the figure: 1-a processing platform, 2-supporting legs, 3-a motor frame, 4-a motor, 5-a cooling box body, 6-a dry ice maker, 7-a lifting and placing frame, 8-a moving air box, 9-a connecting rod, 10-a rotating disc, 11-a first pin shaft, 12-a second pin shaft, 13-a guide rod, 14-an air nozzle, 15-a hydraulic cylinder, 16-an ejector rod, 17-a laminate, 18-a placing plate, 19-an air guide hole, 20-an air supply pipe and 21-a bottom plate.

Detailed Description