Quenching device for camshaft

Abstract

The utility model provides a quenching device for a cam shaft, which relates to the technical field of cam shaft quenching and comprises a box body with an opening and an outlet, a plurality of first through holes are formed in the bottom of the box body, four supporting rods are rotationally connected to the inner wall of the box body, a column body is formed by the four supporting rods, the two ends of each supporting rod are each provided with a first chain transmission mechanism, and every two supporting rods are in transmission connection through the corresponding first chain transmission mechanism; the supporting plates are arranged on the first chain transmission mechanisms, and the gap between every two adjacent first chain transmission mechanisms is larger than the two-time height of each supporting plate; the first motor is arranged on the side wall of the box body, and the output end of the first motor is connected with one supporting rod; a second chain transmission mechanism is connected between two supporting rods, distributed in the length direction of the column body, of the column body; according to the cam shaft quenching device, a large batch of cam shafts can be separated at certain intervals and soaked in quenching liquid for quenching treatment, and the situation that part of the cam shafts are poor in quenching effect is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of camshaft quenching, in particular to a camshaft quenching device. Background Art

[0002] The camshaft is a component in a piston engine. Its main body is a cylindrical rod with a length approximately the same as that of the cylinder group. The camshaft needs to be quenched during processing. When quenching large quantities of camshafts, a tooling plate is required to place large quantities of camshafts. The tooling plate is then lowered into the quenching liquid through a lifting mechanism to be immersed in the quenching liquid to achieve the quenching of the camshafts on the tooling plate. Finally, the tooling plate is raised through the lifting mechanism to be out of the immersion in the quenching liquid, the camshafts on the tooling plate are taken out, and the next batch of camshafts are quenched.

[0003] During the quenching process of the above-mentioned camshaft, the tooling plate used needs to be assembled when the camshaft is placed, which will result in a lot of time being wasted. Secondly, when a large number of camshafts are placed on the tooling plate for quenching, due to the large number of camshafts and the close distance between adjacent camshafts, the camshafts will be exposed to less quenching liquid for quenching and cooling, and the camshafts that are adjacent to each other will also cause the quenching of their own surfaces to be affected, resulting in poor quenching effect on some camshafts. Utility Model Content

[0004] In order to solve the problem that when a large number of camshafts are quenched in quenching liquid, the quenching effect of some camshafts is poor due to the large number and the close distance between them. The utility model proposes a quenching device for camshafts, which can separate a large number of camshafts at a certain distance and immerse them in quenching liquid for quenching treatment, thereby avoiding the situation that some camshafts have poor quenching effect.

[0005] The technical solution adopted by the utility model is:

[0006] A quenching device for a camshaft is provided, comprising:

[0007] A box body, the top of the box body has an opening, and the side wall has an outlet; a plurality of first through holes are opened at the bottom of the box body, and four support rods are rotatably connected on the relative inner walls of the box body, and the four support rods form a column with all angles of 90°, and a first chain transmission mechanism is provided at both ends of each support rod, and the two support rods distributed along the height direction of the column are connected through the first chain transmission mechanism; a support plate, the support plate is arranged on the first chain in the first chain transmission mechanism, and the gap between adjacent first chain transmission mechanisms in the same horizontal plane is greater than twice the height of the support plate; a first motor, the first motor is arranged on the side wall of the box body, and the output end of the first motor is connected to one of the support rods; a second chain transmission mechanism is connected between the two support rods distributed along the length direction of the column.

[0008] In some embodiments of the present utility model, the first chain transmission mechanism includes a first sprocket and a first chain, the first sprocket is arranged on the support rod, and the first chain is wound around an adjacent first sprocket.

[0009] In some embodiments of the present invention, the second chain transmission mechanism includes a second sprocket and a second chain. The second sprocket is arranged on a support rod close to the top of the box body, and the second chain is wound around an adjacent second sprocket.

[0010] In some embodiments of the utility model, a frame is slidably connected to the interior of the box, a fixing plate is provided at the bottom of the frame, a plurality of second through holes are opened on the fixing plate, and a hanging plate extending to the outside of the box is provided at the top of the frame.

[0011] In some embodiments of the utility model, a through groove connected to the interior of the box is provided on the side wall of the box, a rotating rod rotatably connected to the box is provided inside the through groove, a second motor connected to the rotating rod is provided on the side wall of the box, a gear is provided on the free end of the rotating rod, and an engaging groove engaged with the gear is provided on the outer side wall of the frame along the height direction of the box.

[0012] In some embodiments of the present invention, the number of support rods is at least an integer multiple of four, and every four support rods can form columns with all angles of 90°, and adjacent columns are connected by a second chain transmission mechanism arranged on the support rods.

[0013] In some embodiments of the present invention, the gap between the support plates on different first chain transmission mechanisms in the same column is smaller than the shaft diameter of the camshaft.

[0014] In some embodiments of the present invention, a third through hole is formed on the hanging plate, and a curved surface located on the third through hole is formed on the hanging plate.

[0015] The beneficial effects of the utility model are:

[0016] Start the first motor so that the output end of the first motor drives one of the support rods to rotate, and the rotating support rod drives the first chain transmission mechanism on the support rod to operate. The operation of the first chain transmission mechanism can drive the support rod on the same side of the column to rotate, and the second chain transmission mechanism arranged on one of the rotating support rods can be driven to rotate the support rod on the other side of the column, and the support rod on the other side of the column is also transmitted through the first chain transmission mechanism, so as to mobilize the support plate on the first chain in the first chain transmission mechanism to rotate, and the support plate is used to support the camshaft so that there is a gap between the camshafts, and the position of the camshaft in the box can be adjusted as the first motor runs. By immersing the box in quenching liquid after quenching a large number of camshafts that need to be quenched, the quenching liquid will enter the interior of the box through multiple first through holes opened at the bottom of the box, and the quenching liquid entering the box can quench the camshaft, thereby avoiding the situation where the spacing between some camshafts is too small and the quenching effect is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 Schematic diagram of the structure of the quenching device for the camshaft Figure 1 ;

[0019] Figure 2 Top view of the quenching device for the camshaft Figure 1 ;

[0020] Figure 3 Schematic diagram of the structure of the quenching device for the camshaft Figure 2 ;

[0021] Figure 4 Top view of the quenching device for the camshaft Figure 2 ;

[0022] Figure 5 for Figure 3 A local enlarged schematic diagram of the middle A;

[0023] Figure 6 for Figure 4 A local enlarged schematic diagram of point B in the middle.

[0024] Reference numerals:

[0025] 1-box, 10-opening, 11-export, 12-first through hole, 13-support rod, 14-first sprocket, 15-second sprocket, 16-first chain, 17-second chain, 18-support plate, 19-first motor, 190-third sprocket, 191-third chain, 2-frame, 20-second through hole, 21-third through hole, 22-engaging groove, 23-through groove, 24-second motor, 25-gear, 26-hanging plate. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0028] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0029] Example

[0030] like Figure 1 and Figure 2 As shown, this embodiment provides a quenching device for a camshaft, comprising:

[0031] A box body 1, the top of the box body 1 has an opening 10, and the side wall has an outlet 11; a plurality of first through holes 12 are opened at the bottom of the box body 1, four support rods 13 are rotatably connected to the opposite inner walls of the box body 1, and the four support rods 13 form a column with all angles of 90°, and both ends of each support rod 13 are provided with a first chain transmission mechanism, and two support rods 13 distributed along the height direction of the column are connected through the first chain transmission mechanism;

[0032] A support plate 18, wherein the support plate 18 is disposed on the first chain 16 in the first chain transmission mechanism, and a gap between adjacent first chain transmission mechanisms on the same horizontal plane is greater than twice the height of the support plate 18;

[0033] The first motor 19 is arranged on the side wall of the box body 1, and the output end of the first motor 19 is connected to one of the support rods 13; a second chain transmission mechanism is connected between two support rods 13 distributed along the length direction of the column itself.

[0034] The top of the box 1 is hollowed out as an opening 10 for placing the camshaft, and the bottom of the box 1 is provided with a plurality of first through holes 12 with the same aperture and gaps between each other. The first through holes 12 can allow the quenching liquid to enter the interior of the box 1, and the quenching liquid entering the interior of the box 1 can quench the camshaft in the box 1. The opposite inner wall of the box 1 is rotated to connect four support rods 13, and the end points of the four support rods 13 are connected in sequence to form a column with all internal angles of 90°, that is, a rectangular parallelepiped or a cube. The formed column can be placed along the height direction of the box 1, that is, the height direction of the column is perpendicular to the inner bottom of the box 1, or the height direction of the column is placed at a certain angle with the inner bottom of the box 1. At this time, the column is tilted and placed inside the box 1. The two placement methods are different, but it is worth noting that the tilt angle of the column should not be too large. If the tilt angle is too large, the number of columns that can be placed in the box 1 will be reduced, thereby reducing the number of camshafts that can be placed in the box 1. In the column, a first chain transmission mechanism is arranged on two support rods 13 which are close to the same side of the housing 1 and located at the upper and lower parts of the column, so that the two support rods 13 can be simultaneously linked through the first chain transmission mechanism. It is worth noting that a first chain transmission mechanism is arranged at both ends of each support rod 13 close to the housing 1, and a support plate 18 is arranged on the first chain 16 used for linkage transmission in the first chain transmission mechanism. Since the chain in the chain transmission mechanism is composed of an outer chain plate, when the chain rotates with the sprocket, the outer chain plate has a certain length and will not bend, so that a support plate 18 can be arranged on the outer chain plate to support the camshaft. The first chain transmission mechanism is arranged along the length direction of the box body 1, that is, the first chain transmission mechanism on the two support rods 13 in the length direction can realize a transmission closed loop, and the conveying direction of the first chain transmission mechanism can be clockwise or counterclockwise. It is worth noting that the gap between the first chain transmission mechanism described in this embodiment at the same level is actually the gap between the two support rods 13 distributed in a direction perpendicular to the axis of the support rod 13. The length of the gap is set to be greater than the sum of the heights of the two support plates 18, so that the camshaft can be placed well, but the length should not be too large. If the length is too large, the gap between the support plates 18 on the first chain transmission mechanism will be too large, which will cause the camshaft to fall from the gap between the support plates 18, and too large a length will also reduce the number of camshafts firmly placed in the box body 1.The first motor 19 is located on the side wall of the box body 1, and the side wall is the side wall to which the support rod 13 is rotatably connected. The output end of the first motor 19 is connected to one of the support rods 13, that is, when the first motor 19 is running, it can control one of the support rods 13 to rotate, thereby realizing the linkage of the four support rods 13 in the entire column. It is worth noting that the support rod 13 connected to the output end of the first motor 19 should be the support rod 13 close to the top of the box body 1. If it is the support rod 13 close to the bottom of the box body 1 in the column, it is necessary to seal the connection between the support rod 13 and the box body 1 to prevent the quenching liquid from flowing out. A second chain transmission mechanism is set between two support rods 13 distributed in the column in a direction perpendicular to the axis of the support rod 13, that is, after one of the support rods 13 is driven to rotate by the first motor 19, the four support rods 13 in the entire column can all be linked. It is worth noting that the support plates 18 on the first chain 16 in the first chain transmission mechanism located on the same support rod 13 are located on the same side of the column, that is, when the first motor 19 is not started, the support plates 18 on the same support rod 13 are on the same side along the direction perpendicular to the axis of the support rod 13, while the support plates 18 on the other side of the support rod 13 are on the other side along the direction perpendicular to the axis of the support rod 13. It should also be noted that the first chain 16 in the first chain transmission mechanism is not fully provided with support plates 18, and when the first chain transmission mechanism is running, the operation of the second chain transmission mechanism makes the support rods 13 on both sides of the column rotate in the same direction. When the support rods 13 rotate in the same direction, the full support plates 18 on the first chain 16 will make it difficult to place the camshaft. That is to say, after the first chain transmission mechanism is driven by the first motor 19 to run until the support plates 18 on both sides correspond one to one, the operation of the first motor 19 is stopped to prevent the camshaft from being squeezed and damaged by the support plates 18 located on both sides of itself with different rotation directions.

[0035] When in use, the first motor 19 is started, and the output end of the first motor 19 drives the support rod 13 to rotate, and the rotating support rod 13 drives the first chain transmission mechanism to operate, so that the first chain 16 in the first chain transmission mechanism operates. At the same time, with the operation of the first chain 16, the support plate 18 will also rotate. After the first chain 16 rotates to the support plates 18 on both sides correspond one by one, the first motor 19 is turned off, and the staff can place the camshafts on the support plates 18 set on the first chain 16 in turn. After the camshafts are placed, the box body 1 is immersed in the quenching liquid, so that the quenching liquid passes through the first through hole 12 opened at the bottom of the box body 1 and enters the interior of the box body 1, and the camshaft placed in the box body 1 is quenched.

[0036] Further, such as Figure 1 and Figure 2As shown, the first chain transmission mechanism includes a first sprocket 14 and a first chain 16 . The first sprocket 14 is disposed on the support rod 13 , and the first chain 16 is wound around an adjacent first sprocket 14 .

[0037] When in use, there is no relative rotation between the first sprocket 14 and the support rod 13 , that is, they are connected by a key, so that the support rods 13 distributed in the height direction of the column can be driven by the first chain transmission mechanism.

[0038] Further, such as Figure 1 and Figure 2 As shown, the second chain transmission mechanism includes a second sprocket 15 and a second chain 17 . The second sprocket 15 is arranged on the support rod 13 close to the top of the box body 1 , and the second chain 17 is wound around the adjacent second sprocket 15 .

[0039] When in use, there is no relative rotation between the second sprocket 15 and the support rod 13 , that is, they are connected by a key, so that the support rods 13 distributed in the length direction of the column can be driven by the second chain transmission mechanism.

[0040] Further, such as Figure 3 and Figure 4 As shown, the interior of the box 1 is slidably connected to the frame 2, a fixing plate is provided at the bottom of the frame 2, a plurality of second through holes 20 are opened on the fixing plate, and a hanging plate 26 extending to the outside of the box 1 is provided on the top of the frame 2.

[0041] The side wall of the frame 2 is not hollow, and the bottom is provided with a second through hole 20 that allows the quenching liquid to enter the frame 2. At this time, the first motor 19 should be arranged on the side wall of the frame 2 and be located close to the top of the box body 1 so as not to conflict with the box body 1. Since the top of the frame 2 is far away from the first chain transmission mechanism on the support rod 13, it is necessary to arrange a third chain transmission mechanism between the first motor 19 and the support rod 13. The third wheel transmission mechanism includes a third sprocket 190 and a third chain 191. The third sprocket 190 is arranged on the output shaft of the first motor 19, and the third chain 191 is meshed with the first chain transmission mechanism on the support rod 13. It is worth noting that when the third chain 191 is meshed with the first chain transmission mechanism, the thickness of the first sprocket 14 in the first chain transmission mechanism increases, which also increases the number of teeth of the first sprocket 14 along its own axis to achieve meshing with the third chain 191.

[0042] When in use, the first motor 19 runs, and drives the first chain transmission mechanism located on the support rod 13 to run through the third chain transmission mechanism, thereby realizing the rotation of the support plate 18 in the first chain transmission mechanism, thereby achieving the effect of placing the camshaft, and the hanging plate 26 makes it convenient for the staff to carry the frame body 2 out of the box body 1 or place it inside the box body 1.

[0043] Further, such as Figure 3-5 As shown, a through slot 23 connected to the interior of the box body 1 is provided on the side wall thereof, a rotating rod rotatably connected to the box body 1 is provided inside the through slot 23, a second motor 24 connected to the rotating rod is provided on the side wall of the box body 1, a gear 25 is provided on the free end of the rotating rod, and an engaging slot 22 engaged with the gear 25 is provided on the outer side wall of the frame body 2 along the height direction of the box body 1.

[0044] The through slot 23 is located on two adjacent side walls of the box body 1, and is opened at a position on one of the side walls close to the other side wall, so that the through slot 23 extends from one of the side walls to the inside of the other adjacent side wall. In addition, after the through slot 23 extends to the other side wall, the end of the through slot 23 will be connected to the inside of the box body 1 through the extended side wall, so that the gear 25 on the rotating rod in the through slot 23 can be partially located inside the box body 1, thereby achieving engagement with the engagement slot 22 opened on the side wall of the frame body 2.

[0045] When in use, the second motor 24 runs and drives the rotating rod on the output end, and the rotation of the rotating rod drives the gear 25 to rotate. When the gear 25 rotates, it engages with the meshing groove 22 opened on the side wall of the frame body 2 that is slidably connected to the box body 1, so as to control the frame body 2 in the box body 1 to move up and down along the box body 1. When the frame body 2 rises, it is convenient to move the camshaft in the frame body 2 upward from the bottom of the box body 1, so as to facilitate the removal of the camshaft from the frame body 2; when the frame body 2 descends, it can be driven by the meshing of the gear 25 and the meshing groove 22, so that the staff does not need to carry the frame body 2 to the bottom of the box body 1, thereby reducing manpower consumption and avoiding damage to the frame body 2 due to special circumstances.

[0046] Further, such as Figure 1-4 As shown, the number of the support rods 13 is at least an integer multiple of four, and every four support rods 13 can form columns with all angles of 90°. Adjacent columns are connected by a second chain 17 transmission mechanism arranged on the support rods 13.

[0047] Increase the number of support rods 13, maintain the number of support rods 13 at four or an integer multiple of four, and every four non-repetitive support rods 13 can form a column, that is, one column can hold multiple camshafts for quenching. It is worth noting that every time a column is formed, without adding too many motors, it is necessary to set a second chain transmission mechanism between every two adjacent columns to achieve the effect of one motor driving the support rod 13 in each column to rotate.

[0048] When in use, the number of support rods 13 increases, and each support rod 13 is rotatably connected to the inner wall of the box body 1. Every four non-repetitive support rods 13 form a column, which can be a rectangular parallelepiped or a cube. Multiple camshafts can be placed in each column to achieve quenching treatment for large quantities of camshafts and prevent the camshafts from being tightened when the number of camshafts increases.

[0049] Furthermore, the gap between the support plates 18 on different first chain transmission mechanisms in the same column is smaller than the shaft diameter of the camshaft.

[0050] In the same column, when the support rod 13 in the column rotates to the corresponding support plate 18, there may be a gap between every two corresponding support plates 18 in the column, or there may be no gap. If there is a gap, the gap should prevent the camshaft from passing through.

[0051] When in use, when the support rod 13 in the column rotates, the support rod 13 drives the first chain transmission mechanism to rotate, and the support plate 18 on the first chain 16 in the adjacent first chain transmission mechanism in the same column will rotate to a one-to-one corresponding position. At this time, the adjacent support plates 18 in the first chain transmission mechanisms on both sides can place and support the camshaft, and the gap is smaller than the shaft diameter of the camshaft, thereby preventing the camshaft from falling on the support plate 18.

[0052] Further, such as Figure 4 As shown, a third through hole 21 is formed on the hanging plate 26 , and a curved surface located on the third through hole 21 is formed on the hanging plate 26 .

[0053] When in use, the third through hole 21 on the hanging plate 26 is opened toward the bottom direction of the box body 1. After the camshaft in the frame body 2 is quenched, put your hand into the third through hole 21, hold the hanging plate 26, and make your hand and the surface of the lake in the third through hole 21 opened on the hanging plate 26 adapt to each other, so as to better apply force to lift the frame body 2, and then take out the frame body 2 from the quenching liquid, and then take out the quenched camshaft. In addition, after taking out the hand-held frame body 2, the impurities screened out through the second through hole 20 on the frame body 2 can also be dumped out to avoid affecting the quality of the quenching liquid needed for the subsequent camshaft.

[0054] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. In the absence of conflicts, the embodiments of the present application and the features in the embodiments may be arbitrarily combined with each other. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quenching device for a camshaft, characterized in that: include: A box body, wherein the top of the box body has an opening, and the side wall has an outlet; a plurality of first through holes are opened at the bottom of the box body, and four support rods are rotatably connected on the relative inner walls of the box body, and the four support rods form a column with all angles of 90°, and a first chain transmission mechanism is provided at both ends of each of the support rods, and the two support rods distributed along the height direction of the column are connected through the first chain transmission mechanism; a support plate, wherein the support plate is arranged on the first chain in the first chain transmission mechanism, and the gap between adjacent first chain transmission mechanisms in the same horizontal plane is greater than twice the height of the support plate; a first motor, wherein the first motor is arranged on the side wall of the box body, and the output end of the first motor is connected to one of the support rods; a second chain transmission mechanism is connected between the two support rods distributed along the length direction of the column.

2. The camshaft quenching device according to claim 1, characterized in that: The first chain transmission mechanism includes a first sprocket and a first chain. The first sprocket is arranged on the support rod, and the first chain is wound around an adjacent first sprocket.

3. The camshaft quenching device according to claim 2, characterized in that: The second chain transmission mechanism includes a second sprocket and a second chain. The second sprocket is arranged on a support rod close to the top of the box body, and the second chain is wound around an adjacent second sprocket.

4. The camshaft quenching device according to claim 1 or 3, characterized in that: The inside of the box is slidably connected with a frame, the bottom of the frame is provided with a fixing plate, a plurality of second through holes are opened on the fixing plate, and the top of the frame is provided with a hanging plate extending to the outside of the box.

5. The camshaft quenching device according to claim 4, characterized in that: A through slot connected to the interior of the box is provided on the side wall of the box, a rotating rod rotatably connected to the box is provided inside the through slot, a second motor connected to the rotating rod is provided on the side wall of the box, a gear is provided on the free end of the rotating rod, and an engagement groove meshing with the gear is provided on the outer side wall of the frame along the height direction of the box.

6. The camshaft quenching device according to claim 5, characterized in that: The number of the support rods is at least an integer multiple of four, and every four support rods can form columns with all angles of 90°. Adjacent columns are connected by a second chain transmission mechanism arranged on the support rods.

7. The camshaft quenching device according to claim 6, characterized in that: The gap between the support plates on different first chain transmission mechanisms in the same column is smaller than the shaft diameter of the camshaft.

8. The camshaft quenching device according to claim 4, characterized in that: The hanging plate is provided with a third through hole, and the hanging plate is provided with an arc surface located on the third through hole.

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