Crankshaft fillet quenching device

Abstract

The utility model relates to a quenching device, and provides a crankshaft fillet quenching device which comprises a bottom plate, a pair of supporting devices respectively arranged at two ends of the bottom plate, a base arranged on the bottom plate, and an arc-shaped induction coil arranged on the base, the supporting device comprises a vertically-arranged supporting plate, a rotating shaft rotationally connected with the supporting plate, a driving plate connected with the rotating shaft, a connecting piece arranged on the side, away from the rotating shaft, of the driving plate, and a power assembly used for driving the rotating shaft to rotate. The connecting piece is used for connecting the end of the crankshaft and arranged close to the edge of the driving plate, and the axis of the rotating shaft coincides with the axis of the crankshaft connecting rod neck. The crankshaft fillet quenching device disclosed by the utility model can be used for efficiently quenching a crankshaft, and the induction coil does not need to rotate in the quenching process.

Description

TECHNICAL FIELD

[0001] The utility model relates to quenching device's technical field, specifically, a crankshaft fillet quenching device. BACKGROUND

[0002] High frequency quenching is mostly used for industrial metal part surface quenching, which is a kind of metal heat treatment method that makes workpiece surface produce certain induced current, rapidly heats part surface and then rapidly quenches.

[0003] In the processing of crankshaft, high frequency quenching is also needed for crankshaft, especially in the connecting rod neck of crankshaft, the fillet of connecting rod neck needs to be quenched to improve the strength of connecting rod neck. In the quenching process, arc-shaped induction coil is usually used to be close to the connecting rod neck of crankshaft, and the connecting rod neck of crankshaft is uniformly inductively heated under the condition of crankshaft rotation. However, during the operation, since the connecting rod neck and the main shaft of crankshaft are not in a straight line, when the crankshaft is fixed and rotated, the connecting rod neck of crankshaft usually rotates around the main shaft of crankshaft, so the induction coil needs to rotate synchronously with the crankshaft at this time, which not only complicates the driving mechanism connected with the induction coil, but also has certain requirements for the synchronization between the crankshaft and the connecting rod neck. Therefore, a quenching device without induction coil rotation can be designed. SUMMARY

[0004] The utility model aims at providing a kind of crankshaft fillet quenching device, it can efficiently quench crankshaft, and induction coil does not need to rotate in quenching process.

[0005] The embodiment of the utility model is realized by the following technical scheme: the utility model discloses a crankshaft fillet quenching device, including bottom plate, a pair of support device respectively arranged in the both ends of bottom plate, base arranged on the bottom plate and arc-shaped induction coil arranged on the base;The support device includes vertically arranged support plate, the rotation connection of support plate with the rotating shaft, the driving plate connected with the rotating shaft, the connecting piece arranged on the driving plate side away from the rotating shaft and the power assembly for driving the rotating shaft rotation;The connecting piece is used to connect the end of crankshaft, the connecting piece is close to the edge of driving plate and is arranged, and the axis of rotating shaft coincides with the axis of connecting rod neck of crankshaft.

[0006] Further, the connecting piece includes arc-shaped connecting plate connected with the driving plate and arc-shaped pressing plate;The pressing plate and the connecting plate enclose a circle used to accommodate the end of crankshaft;The pressing plate passes through the driving plate and is slidably connected with the driving plate.

[0007] Further, the side of pressing plate close to connecting plate is provided with clamping groove;The key of the end of crankshaft is clamped in the clamping groove.

[0008] Further, the pressing plate is provided with a fixing plate away from one end of the crankshaft, and the fixing plate is arranged on the side of the driving plate away from the crankshaft.

[0009] Further, the fixing plate is provided with a magnet, and the supporting plate is provided with an electromagnet on the side close to the driving plate; the electromagnet is arranged close to the magnet.

[0010] Further, the power assembly comprises a motor arranged on the bottom plate, a driving shaft connected with the output shaft of the motor, a pair of driving sprockets arranged at two ends of the driving shaft respectively, a driven sprocket arranged on the rotating shaft, and a transmission chain used for connecting the driving sprockets and the driven sprocket.

[0011] Further, the base is further provided with a sliding rail, and the base is arranged on the sliding rail in a sliding mode; and the base is further provided with a driving device used for driving the base to move back and forth along the sliding rail.

[0012] Further, the base is provided with an electric push rod, and the telescopic end of the electric push rod is connected with the induction coil; and the electric push rod is used for driving the induction coil to move close to or away from the crankshaft.

[0013] The crankshaft fillet quenching device has the following advantages and beneficial effects: when the crankshaft fillet quenching device is used, the crankshaft is transported to the supporting device by manual operation, a grabbing device or a hoisting device, and the two end portions of the crankshaft are clamped on the connecting pieces; then the induction coil is close to the connecting rod neck of the crankshaft, and the power assembly is used to drive the rotating shaft to rotate; the rotating shaft, the driving plate and the connecting pieces can drive the crankshaft to rotate as a whole, but the axis of the rotating shaft coincides with the connecting rod neck of the crankshaft, so that the axis of the crankshaft during rotation is the connecting rod neck of the crankshaft; in this way, the induction coil does not need to rotate when the crankshaft rotates, and the connecting rod neck of the crankshaft is always in the induction coil, so that the crankshaft connecting rod neck can be quenched more efficiently, the induction coil does not need to rotate synchronously with the crankshaft, the quenching precision can be improved to a certain extent, and the product quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0015] Figure 1 The crankshaft fillet quenching device provided in the embodiments of the present application is shown in the structure schematic view during use.

[0016] Figure 2 A perspective view of the structure of the crankshaft fillet quenching device according to an embodiment of the present application is provided.

[0017] Figure 3 A perspective view of the structure of the crankshaft fillet quenching device according to an embodiment of the present application is provided.

[0018] Figure 4 A perspective view of the structure of the crankshaft fillet quenching device according to an embodiment of the present application is provided. Figure 1 An enlarged view of part A is provided.

[0019] Figure 5 An enlarged view of part B is provided. Figure 3 An enlarged view of part B is provided.

[0020] Icon: 11 - base plate, 12 - slide rail, 13 - base, 14 - electric push rod, 15 - induction coil, 16 - crankshaft, 17 - connecting rod neck, 18 - key, 20 - support device, 21 - support plate, 22 - rotating shaft, 23 - drive plate, 24 - connecting plate, 25 - pressing plate, 26 - fixed plate, 27 - electromagnet, 31 - motor, 32 - drive shaft, 33 - driving sprocket, 34 - transmission chain, 35 - driven sprocket. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0024] In the description of the utility model, it needs to explain, if appearing the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, or is the orientation or positional relationship of the product of the application when using the usual placement, is only for the convenience of describing the utility model and simplifying the description, and is not indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] In the description of the utility model, it also needs to explain that, unless there is an explicit provision and limitation, if the term "set", "install", "connect", "connect" appears, it should be understood broadly, for example, it can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0026] Embodiment

[0027] The following is further illustrated in conjunction with specific embodiments, such as the accompanying drawings Figure 1 - the accompanying drawings Figure 5As shown, the crankshaft fillet quenching device of the embodiment comprises a bottom plate 11, a pair of support devices 20 arranged at two ends of the bottom plate 11 respectively, a base 13 arranged on the bottom plate 11, and an arc-shaped induction coil 15 arranged on the base 13; the support device 20 comprises a support plate 21 arranged vertically, a rotating shaft 22 rotationally connected with the support plate 21, a driving plate 23 connected with the rotating shaft 22, a connecting piece arranged on the side of the driving plate 23 away from the rotating shaft 22, and a power assembly for driving the rotating shaft 22 to rotate; the connecting piece is used to connect the end of the crankshaft 16, the connecting piece is arranged close to the edge of the driving plate 23, and the axis of the rotating shaft 22 coincides with the axis of the connecting rod neck 17 of the crankshaft 16. Specifically, in use, the crankshaft 16 is transported to the support device 20 by manual operation, grabbing device, or hoisting device, etc., the two ends of the crankshaft 16 are clamped on the connecting pieces, the induction coil 15 is close to the connecting rod neck 17 of the crankshaft 16, and then the power assembly is used to drive the rotating shaft 22 to rotate, so that the whole crankshaft 16 can be driven to rotate through the rotating shaft 22, the driving plate 23, and the connecting piece, but since the axis of the rotating shaft 22 coincides with the connecting rod neck 17 of the crankshaft 16, the axis of the crankshaft 16 during rotation is the connecting rod neck 17 of the crankshaft 16, so that when the crankshaft 16 rotates, the induction coil 15 does not need to rotate, and the connecting rod neck 17 of the crankshaft 16 is always in the induction coil 15, so that the fillet of the connecting rod neck 17 of the crankshaft 16 can be quenched more efficiently, without the need to make the induction coil 15 rotate synchronously with the crankshaft 16, so that the quenching precision can be improved to a certain extent, and the product quality can be improved.

[0028] The connecting piece in the embodiment comprises an arc-shaped connecting plate 24 connected with the driving plate 23, and an arc-shaped pressing plate 25; the pressing plate 25 and the connecting plate 24 enclose a circular shape for accommodating the end of the crankshaft 16; the pressing plate 25 penetrates through the driving plate 23 and is in sliding connection with the driving plate 23. The side of the pressing plate 25 close to the connecting plate 24 is provided with a clamping groove; the key 18 of the end of the crankshaft 16 is clamped in the clamping groove. Specifically, when the crankshaft 16 is fixed, the end of the crankshaft 16 is first placed into the connecting plate 24, and then the pressing plate 25 is horizontally pushed to press on the upper surface of the end of the crankshaft 16, and the key 18 of the end of the crankshaft 16 is clamped in the clamping groove, so that the crankshaft 16 can be well fixed by the connecting plate 24 and the pressing plate 25, and the cooperation of the clamping groove and the key 18 can prevent the crankshaft 16 from rotating by itself during rotation.

[0029] The fixed plate 26 is provided with a magnet, and the support plate 21 is provided with an electromagnet 27 on the side close to the driving plate 23; the electromagnet 27 is arranged close to the magnet. Specifically, the automatic movement of the pressing plate 25 can be realized through the cooperation of the electromagnet 27 and the magnet, which mainly pushes the magnet, the fixed plate 26 and the pressing plate 25 through the magnetic force generated by the electromagnet 27, so that the pressing plate 25 covers the end of the crankshaft 16. When the quenching is finished, the electromagnet 27 generates a reverse magnetic force, which can generate an attractive force on the magnet, thereby pulling the fixed plate 26 and the pressing plate 25, so as to move the pressing plate 25 away from the end of the crankshaft 16, at this time the crankshaft 16 can be taken out.

[0030] The power assembly in the embodiment includes a motor 31 arranged on the bottom plate 11, a driving shaft 32 connected with the output shaft of the motor 31, a pair of driving sprockets 33 arranged on both ends of the driving shaft 32 respectively, a driven sprocket 35 arranged on the rotating shaft 22, and a transmission chain 34 used to connect the driving sprockets 33 and the driven sprocket 35. Specifically, one motor 31 can drive a pair of rotating shafts 22 and driving plates 23 to rotate synchronously.

[0031] In the embodiment, the slide rail 12 is arranged on the base 13, the base 13 is arranged on the slide rail 12 in a sliding manner, and the driving device used to drive the base 13 to move back and forth along the slide rail 12 is further included. The electric push rod 14 is arranged on the base 13, and the telescopic end of the electric push rod 14 is connected with the induction coil 15; the electric push rod 14 is used to drive the induction coil 15 to move close to or away from the crankshaft 16. Specifically, since there are multiple connecting rod necks 17 on one crankshaft 16, multiple quenching processes are required, that is, the position of the induction coil 15 needs to be moved, and the driving device can be used to drive the base 13 to move along the length direction of the slide rail 12, that is, to move along the axial direction of the crankshaft 16, so as to quench different connecting rod necks 17. The driving device can use a traditional gear and rack structure, or a ball screw structure, which is not limited here.

[0032] In summary, the crankshaft fillet quenching device of the embodiment, in use, transports the crankshaft 16 to the supporting device 20 by artificial, grabbing device or hoisting device, etc., clamps both ends of the crankshaft 16 on the connecting piece, places the induction coil 15 close to the connecting rod neck 17 of the crankshaft 16, then drives the rotating shaft 22 to rotate by using the power assembly, drives the whole crankshaft 16 to rotate through the rotating shaft 22, the driving plate 23 and the connecting piece, but since the axis of the rotating shaft 22 coincides with the connecting rod neck 17 of the crankshaft 16, the axis of the crankshaft 16 when rotating is the connecting rod neck 17 of the crankshaft 16, so when the crankshaft 16 rotates, the induction coil 15 does not need to rotate, and the connecting rod neck 17 of the crankshaft 16 is always in the induction coil 15, so that the crankshaft 16 connecting rod neck 17 can be more efficiently quenched, and the induction coil 15 does not need to rotate synchronously with the crankshaft 16, which can improve the quenching precision to a certain extent and improve the product quality.

[0033] The preferred embodiments of the utility model are merely used for limiting the utility model, and the utility model can be changed and varied in various ways for the person skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A crankshaft fillet hardening device, characterized in that: Includes a base plate (11), a pair of support devices (20) respectively disposed at both ends of the base plate (11), a base (13) disposed on the base plate (11), and an arc-shaped induction coil (15) disposed on the base (13); The support device (20) includes a vertically arranged support plate (21), a rotating shaft (22) rotatably connected to the support plate (21), a drive plate (23) connected to the rotating shaft (22), a connector disposed on the side of the drive plate (23) away from the rotating shaft (22), and a power component for driving the rotating shaft (22) to rotate. The connector is used to connect the end of the crankshaft (16). The connector is located near the edge of the drive plate (23). The axis of the rotating shaft (22) coincides with the axis of the connecting rod neck (17) of the crankshaft (16).

2. The crankshaft fillet hardening device according to claim 1, characterized in that: The connector includes an arc-shaped connecting plate (24) connected to the drive plate (23) and an arc-shaped pressure plate (25); the pressure plate (25) and the connecting plate (24) enclose a circle to accommodate the end of the crankshaft (16); the pressure plate (25) passes through the drive plate (23) and is slidably connected to the drive plate (23).

3. The crankshaft fillet hardening device according to claim 2, characterized in that: The pressure plate (25) has a slot on the side near the connecting plate (24); the key (18) at the end of the crankshaft (16) is engaged in the slot.

4. The crankshaft fillet hardening device according to claim 2, characterized in that: The pressure plate (25) is provided with a fixing plate (26) at one end away from the crankshaft (16), and the fixing plate (26) is located on the side of the drive plate (23) away from the crankshaft (16).

5. The crankshaft fillet hardening device according to claim 4, characterized in that: The fixing plate (26) is provided with a magnet, and the support plate (21) is provided with an electromagnet (27) on the side near the drive plate (23); the electromagnet (27) is located near the magnet.

6. The crankshaft fillet hardening device according to claim 1, characterized in that: The power assembly includes a motor (31) mounted on the base plate (11), a drive shaft (32) connected to the output shaft of the motor (31), a pair of drive sprockets (33) respectively mounted at both ends of the drive shaft (32), a driven sprocket (35) mounted on the rotating shaft (22), and a transmission chain (34) for connecting the drive sprockets (33) and the driven sprockets (35).

7. The crankshaft fillet hardening device according to claim 1, characterized in that: It also includes a slide rail (12) disposed on the base (13), the base (13) being slidably disposed on the slide rail (12), and a drive device for driving the base (13) to reciprocate along the slide rail (12).

8. The crankshaft fillet hardening device according to claim 7, characterized in that: An electric push rod (14) is provided on the base (13), and the telescopic end of the electric push rod (14) is connected to the induction coil (15); the electric push rod (14) is used to drive the induction coil (15) to move closer to or away from the crankshaft (16).

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