Heat treatment device for strengthening nodular cast iron crankshaft

Abstract

The utility model relates to the technical field of crankshafts, in particular to a heat treatment device for strengthening a nodular cast iron crankshaft, which comprises a shell, a fence component and a processing component, a positioning component is arranged in the shell, the fence component is slidably connected to the periphery of the positioning component in the shell, and the processing component is slidably connected to the inner side of the fence component; the fence assembly comprises an arc-shaped heat insulation cover, the bottom of the arc-shaped heat insulation cover is connected with a heat insulation bottom plate through bolts, the top of the arc-shaped heat insulation cover is connected with a heat insulation top plate through bolts, and the surfaces of one sides of the arc-shaped heat insulation cover, the heat insulation bottom plate and the heat insulation top plate are connected with sealing gaskets in a gluing mode. The auxiliary sealing mechanism is additionally arranged, auxiliary sealing is carried out on the periphery of the crankshaft in a sliding and surrounding mode, heat energy loss and waste are reduced in a heat treatment space compressing mode, meanwhile, the function of reducing energy consumption and production cost can be achieved, and therefore the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft technology, specifically to a heat treatment device for strengthening spheroidal cast iron crankshafts. Background Technology

[0002] The crankshaft is one of the most important components of an engine. It bears the force transmitted from the connecting rod and converts it into torque, which is then output through the crankshaft to drive other accessories on the engine. During the production and processing of the crankshaft, it needs to undergo a series of heat treatment processes. The heat treatment process has a very important impact on improving the strength and wear resistance of the crankshaft surface and the quality of the internal core of the crankshaft.

[0003] Currently used heat treatment equipment lacks auxiliary sealing mechanisms. Typically, when heat treating crankshafts, a large amount of heat needs to be generated through a heating mechanism. However, due to the large internal space of the equipment, the actual heating time is long, which not only affects the heating efficiency of the crankshaft but also increases the energy consumption and production cost of the equipment. Therefore, a heat treatment device for strengthening ductile cast iron crankshafts is proposed to add an auxiliary sealing mechanism. By using sliding and enclosing methods, auxiliary sealing is performed on the outer periphery of the crankshaft. By compressing the heat treatment space, heat loss and waste are reduced, while also reducing energy consumption and production costs, thereby improving the performance. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a heat treatment device for strengthening spheroidal cast iron crankshafts, which reduces heat loss and waste by compressing the heat treatment space, thereby improving the performance.

[0005] The technical solution adopted by this utility model to solve its technical problem is a heat treatment device for strengthening spheroidal cast iron crankshaft, including a shell, a retaining assembly and a processing assembly. A positioning assembly is provided inside the shell, and a retaining assembly is slidably connected to the periphery of the positioning assembly inside the shell. A processing assembly is slidably connected to the inner side of the retaining assembly.

[0006] The enclosure assembly includes an arc-shaped heat insulation cover, the bottom of which is bolted to a heat insulation base plate, and the top of which is bolted to a heat insulation top plate. Sealing gaskets are glued to one side of the arc-shaped heat insulation cover, the heat insulation base plate, and the heat insulation top plate.

[0007] By adopting the above technical solutions, an auxiliary sealing structure can be added, and the space and heat required for compression heat treatment can be utilized to improve the heat treatment efficiency of the crankshaft, reduce heat loss, and make it more efficient and reliable in use.

[0008] Specifically, the processing assembly includes a sliding frame, a rotating frame is mounted on the top of the sliding frame via a bearing, a nozzle is provided on the surface of the rotating frame, a guide groove is provided inside the rotating frame, and the nozzle communicates with the guide groove.

[0009] By adopting the above technical solutions, the sliding frame, rotating frame, nozzle, and guide channel can be used to add auxiliary protection mechanisms. By using the flipping method, the impact of waste liquid splashing on the internal environment of the device can be reduced during the cooling process of the crankshaft, so as to improve the continuity and practicality of the device.

[0010] Specifically, a lead screw is installed inside the arc-shaped heat insulation cover via bearings, and a corresponding ball slider is sleeved around the lead screw. The ball slider is connected to a sliding frame via bolts. A servo motor is connected to the top of the arc-shaped heat insulation cover via bolts, and the servo motor is connected to the lead screw via a drive shaft.

[0011] By adopting the above technical solution, the servo motor drives the lead screw to rotate, and the ball block can drive the sliding frame to move vertically, adjusting its heat treatment processing position.

[0012] Specifically, an electric push rod is bolted inside the sliding frame, and an arc-shaped electric heating plate is bolted to the output end of the electric push rod.

[0013] By adopting the above technical solution, the electric push rod can easily drive the arc-shaped electric heating plate to move back and forth, thereby heating the crankshaft.

[0014] Specifically, the positioning component includes a cylinder, the output end of which is bolted to a pin seat, the top of the housing is bolted to a drive motor, and the bottom of the drive motor is bolted to a four-jaw chuck.

[0015] By adopting the above technical solution, the crankshaft can be clamped and positioned, and the crankshaft can be driven to rotate, thereby improving the uniformity of heat treatment.

[0016] Specifically, a water pump is bolted to the top of the housing, and the water outlet of the water pump is connected to the guide channel via a hose. A recycling tank is provided at the bottom of the housing. The second cylinder is bolted to both sides of the housing, and the output end of the second cylinder is bolted to the arc-shaped heat insulation cover.

[0017] By adopting the above technical solution, the water pump can be easily connected to the guide groove to pump coolant to the crankshaft surface for auxiliary cooling treatment, the recovery tank can easily recycle the generated waste liquid, and the second cylinder can easily control the position of the arc-shaped heat shield.

[0018] The beneficial effects of this utility model are:

[0019] (1) The heat treatment device for strengthening spherical cast iron crankshaft described in this utility model can increase the auxiliary sealing mechanism by setting an arc-shaped heat insulation cover, heat insulation base plate, heat insulation top plate and sealing gasket. By using sliding, splicing and enclosure, the heat treatment space of the crankshaft can be compressed, the heat required for heat treatment can be reduced, the energy consumption and operating cost of the device can be reduced, and the heat treatment efficiency of the crankshaft can be improved, making it more efficient and safe to use.

[0020] (2) The heat treatment device for strengthening spherical cast iron crankshaft described in this utility model can increase the auxiliary protection mechanism by setting a sliding frame, rotating frame, nozzle and guide groove. After the crankshaft is heated and kept warm, it can be sprayed with water for rapid cooling by flipping. The overall structure is simple, low cost and easy to operate, and more reasonable and reliable. Moreover, it can greatly reduce the impact of waste liquid generated during the cooling process on the internal environment of the device. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the enclosure component structure of this utility model;

[0024] Figure 3 This is a cross-sectional view of the processing component of this utility model;

[0025] Figure 4 This is a cross-sectional view of the arc-shaped heat insulation cover of this utility model;

[0026] Figure 5 This is a cross-sectional view of the positioning component of this utility model;

[0027] In the diagram: 1. Housing; 2. Positioning assembly; 201. Cylinder; 202. Ejector pin seat; 203. Drive motor; 204. Four-jaw chuck; 3. Enclosure assembly; 301. Arc-shaped heat insulation cover; 302. Heat insulation base plate; 303. Heat insulation top plate; 304. Sealing gasket; 305. Lead screw; 306. Ball bearing slider; 307. Servo motor; 4. Machining assembly; 401. Sliding frame; 402. Rotating frame; 403. Nozzle; 404. Guide channel; 405. Electric push rod; 406. Arc-shaped heating plate; 5. Water pump; 6. Recovery tank; 7. Second cylinder. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] To facilitate reducing heat loss and waste by compressing the heat treatment space, thereby improving performance, such as... Figure 1-3 As shown, the heat treatment device for strengthening spherical cast iron crankshaft of this utility model includes a housing 1, a baffle assembly 3 and a processing assembly 4. A positioning assembly 2 is provided inside the housing 1. The baffle assembly 3 is slidably connected to the periphery of the positioning assembly 2 inside the housing 1. The processing assembly 4 is slidably connected to the inner side of the baffle assembly 3.

[0030] The enclosure assembly 3 includes an arc-shaped heat insulation cover 301. The bottom of the arc-shaped heat insulation cover 301 is connected to a heat insulation base plate 302 by bolts, and the top of the arc-shaped heat insulation cover 301 is connected to a heat insulation top plate 303 by bolts. A sealing gasket 304 is glued to one side of the arc-shaped heat insulation cover 301, the heat insulation base plate 302 and the heat insulation top plate 303.

[0031] In use, the arc-shaped heat insulation cover 301, heat insulation base plate 302, heat insulation top plate 303 and sealing gasket 304 can increase the auxiliary sealing structure, and improve the heat treatment efficiency of the crankshaft by utilizing the space and heat required for compression heat treatment, reducing heat loss, and making it more efficient and reliable.

[0032] To improve the continuity of device use, for example, such as Figure 1 , Figure 3 As shown, the present invention also includes the following: the processing component 4 includes a sliding frame 401, a rotating frame 402 is mounted on the top of the sliding frame 401 via a bearing, a nozzle 403 is provided on the surface of the rotating frame 402, a guide groove 404 is provided inside the rotating frame 402, and the nozzle 403 communicates with the guide groove 404.

[0033] During use, the sliding frame 401, rotating frame 402, nozzle 403 and guide groove 404 can be used to add an auxiliary protection mechanism. By using the flipping method, the impact of waste liquid splashing on the internal environment of the device is reduced during the cooling process of the crankshaft, so as to improve the continuity and practicality of the device. The outer side of the sliding frame 401 is connected to the rotary motor by bolts, and the rotary motor is connected to the rotating frame 402 through the drive shaft.

[0034] For example, such as Figure 4 As shown, the present invention also includes a lead screw 305 installed inside the arc-shaped heat insulation cover 301 via a bearing, a corresponding ball slider 306 sleeved around the lead screw 305, and the ball slider 306 connected to the sliding frame 401 by bolts. The top of the arc-shaped heat insulation cover 301 is connected to the servo motor 307 by bolts, and the servo motor 307 is connected to the lead screw 305 via a drive shaft.

[0035] In use, the servo motor 307 drives the lead screw 305 to rotate, and the ball slider 306 can drive the sliding frame 401 to move vertically to adjust its heat treatment processing position.

[0036] For example, such as Figure 3 As shown, the present invention also includes an electric push rod 405 bolted inside the sliding frame 401, and an arc-shaped electric heating plate 406 bolted to the output end of the electric push rod 405.

[0037] In use, the electric push rod 405 facilitates the reciprocating movement of the arc-shaped electric heating plate 406 to heat the crankshaft.

[0038] For example, such as Figure 5 As shown, the present invention also includes a positioning component 2 comprising a cylinder 201, the output end of the cylinder 201 being bolted to a pin seat 202, a drive motor 203 being bolted to the top of the housing 1, and a four-jaw chuck 204 being bolted to the bottom of the drive motor 203 via a drive shaft.

[0039] In use, the crankshaft can be clamped and positioned by the cylinder 201, the ejector seat 202, the drive motor 203 and the four-jaw chuck 204, while driving the crankshaft to rotate, thereby improving the uniformity of heat treatment.

[0040] For example, such as Figure 1 As shown, the present invention also includes a water pump 5 bolted to the top of the housing 1, and the outlet of the water pump 5 is connected to the guide channel 404 via a hose. A recycling tank 6 is provided at the bottom of the housing 1. The two sides of the housing 1 are bolted to the second cylinder 7, and the output end of the second cylinder 7 is bolted to the arc-shaped heat insulation cover 301.

[0041] In use, the water pump 5 is connected to the guide groove 404 to pump coolant to the crankshaft surface for auxiliary cooling treatment. The recycling tank 6 is used to recycle the generated waste liquid. The second cylinder 7 is used to control the position of the arc-shaped heat shield 301.

[0042] In use, the operator first places the crankshaft between the ejector seat 202 and the four-jaw chuck 204 inside the housing 1. The crankshaft is then clamped and positioned using the cylinder 201. After closing the housing 1, the operator manually opens the second cylinder 7 to drive the arc-shaped heat insulation covers 301 on both sides to slide inwards relative to each other, so that the outer sealing gasket 304 makes full contact, forming an auxiliary sealing structure around the positioning component 2 and the crankshaft. The operator manually opens the electric push rod 405 to drive the arc-shaped electric heating plate 406 to slide relative to each other, forming a heating mechanism around the crankshaft. The operator manually opens the arc-shaped electric heating plate 406 to heat the crankshaft. The arc-shaped heat insulation cover 301, the heat insulation base plate 302, and the heat insulation top plate 303 set by the enclosure can greatly reduce the heat required for the crankshaft heat treatment space, reduce heat loss, and reduce the energy consumption required for the device to work. The structure is simple, the cost is low, and the use is more efficient and safe.

[0043] After the crankshaft is heated and kept warm, the rotary motor is manually turned on to drive the rotating frame 402 to rotate to both sides of the crankshaft. The water pump 5 is then manually turned on, and external coolant is pumped through the rotating frame 402, the guide groove 404, and the nozzle 403 to spray onto the surface of the crankshaft for rapid cooling. The overall operation is more convenient and faster. Moreover, the rotating frame 402 and the sliding frame 401 allow the waste liquid to flow into the recovery tank 6 for recycling, greatly reducing the impact of coolant splashing on the internal environment of the device during the cooling process, thus facilitating the continuity of subsequent device use. The overall structure is simple, low-cost, easy to operate, and more convenient and reliable to use.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat treatment apparatus for strengthening spheroidal cast iron crankshafts, characterized in that, It includes a housing (1), a enclosure assembly (3) and a processing assembly (4). A positioning assembly (2) is provided inside the housing (1). The enclosure assembly (3) is slidably connected to the periphery of the positioning assembly (2) inside the housing (1). The processing assembly (4) is slidably connected to the inner side of the enclosure assembly (3). The enclosure assembly (3) includes an arc-shaped heat insulation cover (301), the bottom of which is connected to a heat insulation base plate (302) by bolts, and the top of which is connected to a heat insulation top plate (303) by bolts. The surfaces of one side of the arc-shaped heat insulation cover (301), the heat insulation base plate (302) and the heat insulation top plate (303) are all bonded with sealing gaskets (304).

2. The heat treatment apparatus for strengthening spheroidal cast iron crankshafts according to claim 1, characterized in that, The processing component (4) includes a sliding frame (401), a rotating frame (402) is mounted on the top of the sliding frame (401) via a bearing, a nozzle (403) is provided on the surface of the rotating frame (402), a guide groove (404) is provided inside the rotating frame (402), and the nozzle (403) is connected to the guide groove (404). An electric push rod (405) is bolted inside the sliding frame (401), and an arc-shaped electric heating plate (406) is bolted to the output end of the electric push rod (405).

3. The heat treatment apparatus for strengthening a spheroidal cast iron crankshaft according to claim 2, characterized in that, A lead screw (305) is installed inside the arc-shaped heat insulation cover (301) via bearings. A corresponding ball slider (306) is sleeved around the lead screw (305), and the ball slider (306) is connected to the sliding frame (401) by bolts. The top of the arc-shaped heat insulation cover (301) is connected to the servo motor (307) by bolts, and the servo motor (307) is connected to the lead screw (305) via a drive shaft.

4. The heat treatment apparatus for strengthening a spheroidal cast iron crankshaft according to claim 1, characterized in that, The positioning component (2) includes a cylinder (201), the output end of which is connected to a pin seat (202) by bolts, the top of the housing (1) is connected to a drive motor (203) by bolts, and the bottom of the drive motor (203) is connected to a four-jaw chuck (204) by a drive shaft.

5. The heat treatment apparatus for strengthening a spheroidal cast iron crankshaft according to claim 2, characterized in that, The top of the housing (1) is connected to a water pump (5) by bolts, and the outlet of the water pump (5) is connected to the guide channel (404) by a hose. The bottom of the housing (1) is provided with a recycling tank (6). The two sides of the housing (1) are connected to the second cylinder (7) by bolts, and the output end of the second cylinder (7) is connected to the arc-shaped heat insulation cover (301) by bolts.

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