A heat treatment apparatus for sprocket production

Abstract

This utility model belongs to the field of sprocket heat treatment, specifically a sprocket production heat treatment device, including a treatment box; a pair of sealed doors are slidably connected to the side wall of the treatment box; a slide rail is fixed to the top of the treatment box; a support frame is slidably connected to the bottom end of the slide rail; a heating box is opened in the inner side wall of the treatment box; a heat preservation box is opened in the inner side wall of the treatment box; a cooling box is opened in the inner side wall of the treatment box; a pair of first heating wires are fixed to the side wall of the heating box; a cold air box is fixed to the side wall of the treatment box; the cold air box is located on one side of the cooling box; multiple sets of partition plates are slidably connected to the side wall of the treatment box; the slide rail drives the support frame to move, so that the sprocket can pass through the heating box, heat preservation box and cooling box in sequence. The three processes are completed in the treatment box, reducing heat loss caused by handling due to sprocket transfer, and increasing the continuity and integrity of the heat treatment process.

Description

Technical Field

[0001] This utility model relates to the field of sprocket heat treatment, specifically a sprocket production heat treatment device. Background Technology

[0002] A sprocket is a mechanical transmission component with interlocking teeth. It is usually used in conjunction with a chain to transmit motion and power through the meshing of the teeth and the chain. It is widely used in equipment such as motorcycles, bicycles, conveyors, and agricultural machinery. It is mostly made of steel and features high transmission efficiency, high power transmission, and adaptability to harsh environments. Its performance directly affects the stability and service life of the transmission system.

[0003] The production of sprockets begins with selecting steel according to design specifications, cutting it into blanks, and then initially shaping it through forging or rolling. Subsequently, machining is carried out, including turning the outer diameter, milling the tooth profile, and drilling the shaft hole, to ensure dimensional accuracy. Next, heat treatment is used to improve hardness and wear resistance. Finally, after surface treatment and precision inspection, it becomes a finished product.

[0004] In existing sprocket heat treatment processes, most sprockets need to be transferred to an insulation box and cooling device, which is cumbersome and results in poor continuous production. Therefore, a heat treatment device for sprocket production is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A heat treatment device for sprocket production, comprising a treatment box; a pair of sealed doors are slidably connected to the side wall of the treatment box; a slide rail is fixedly connected to the top of the treatment box; a support frame is slidably connected to the bottom end of the slide rail; a heating box is provided on the inner side wall of the treatment box; a heat preservation box is provided on the inner side wall of the treatment box; a cooling box is provided on the inner side wall of the treatment box; a pair of first heating wires are fixedly connected to the side wall of the heating box; a cold air box is fixedly connected to the side wall of the treatment box; the cold air box is located on one side of the cooling box; the side wall of the treatment box is slidably connected to the heat preservation box. The system connects multiple sets of partition plates; the support frame moves via a slide rail, allowing the sprocket to pass sequentially through the heating box, insulation box, and cooling box. These three processes are completed within the processing box, reducing heat loss caused by handling the sprocket and increasing the continuity and integrity of the heat treatment process. The first heating wires in the heating box and insulation box areas can be temperature-controlled separately, with the insulation box temperature slightly lower than the heating box, creating a temperature gradient that meets process requirements. After heating, the insulation process reduces internal stress in the sprocket, and the cooling process in the cold air box effectively reduces cracking caused by sudden temperature changes in the sprocket, ensuring that the sprocket hardness meets the standards.

[0007] Preferably, the processing box has an air inlet on its side wall; a hot air box is fixedly connected to the side wall of the processing box; a second heating wire is fixedly connected to the top of the hot air box; an air outlet is fixedly connected to the side wall of the processing box; the air outlet is connected to the cooling box; after collecting the gas blown out of the cooling box through the air inlet, the gas is then introduced into the insulation box through the air outlet, so that the gas that was originally wasted is reused for the insulation process, reducing the energy consumption required for separate heating of the insulation box area and improving the overall utilization rate.

[0008] Preferably, a motor is fixedly connected to the bottom end of the support frame; a placement platform is fixedly connected to the output end of the motor; when the placement platform is rotated by the motor, the sprocket rotates accordingly, which enables all parts of the sprocket to evenly contact the heat in the heating box area and the cooling gas in the cooling box area, reducing the problem of uneven heating or cooling caused by fixed placement, and reducing deformation and cracks caused by local temperature differences.

[0009] Preferably, the top of the placement platform has multiple sets of slots; the top of each slot is slidably connected to a rod; the slots are arranged in an array on the top of the placement platform; by inserting the rod into the middle hole of the sprocket and engaging with the slot to fix it, the sprocket can be fixed on the top of the placement platform, reducing the movement of the sprocket due to centrifugal force during the rotation of the placement platform. The multiple sets of rods on the top of the placement platform can also be adjusted according to sprockets of different sizes, increasing the fixing effect of sprockets of different sizes.

[0010] Preferably, a fixed base is fixedly connected to the top of the processing box; a water inlet is fixedly connected to the top of the fixed base; the fixed base is located at the top of the cooling box; multiple sets of spray nozzles are fixedly connected to the bottom of the fixed base; during operation, the coolant sprayed through the spray nozzles can directly contact the sprocket surface, and in conjunction with the gas cooling of the cold air box, it can significantly accelerate the cooling speed and shorten the processing time of the cooling stage.

[0011] Preferably, a pair of heat insulation plates are fixedly connected to the side wall of the partition plate; the heat insulation plates are arranged correspondingly to the partition plate; the heat insulation plates can effectively block the temperature transfer inside the processing box, reduce mutual interference caused by temperature transfer, and improve the heat treatment quality.

[0012] The advantages of this utility model are:

[0013] 1. The heat treatment device for sprocket production described in this utility model moves the support frame via a slide rail, allowing the sprocket to pass through a heating box, a heat preservation box, and a cooling box in sequence. The three processes are completed within the treatment box, reducing heat loss caused by handling the sprocket and increasing the continuity and integrity of the heat treatment process. The first heating wires in the heating box and heat preservation box areas can be temperature-controlled separately, and the temperature of the heat preservation box is slightly lower than that of the heating box, which can form a temperature gradient that meets the process requirements. After heating, the heat preservation process can reduce the internal stress of the sprocket, and the cooling process in the cold air box can effectively reduce cracking of the sprocket due to sudden temperature changes and ensure that the hardness of the sprocket meets the standards.

[0014] 2. The heat treatment device for sprocket production described in this utility model collects the gas blown out of the cold air box through the air inlet and then introduces it into the heat preservation box through the air outlet. The gas that was originally wasted is reused in the heat preservation process, which reduces the energy consumption required for separate heating of the heat preservation box area and improves the overall utilization rate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main body of this utility model;

[0017] Figure 2 This is a schematic diagram of the spray nozzle structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the cooling box structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the insert rod in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the heat insulation plate in this utility model.

[0021] In the diagram: 1. Processing box; 11. Sealed door; 12. Slide rail; 13. Support frame; 14. Heating box; 15. Insulation box; 16. Cooling box; 17. First heating wire; 18. Cold air box; 19. Partition plate; 2. Air inlet; 21. Hot air box; 22. Second heating wire; 23. Air outlet; 3. Motor; 31. Placement platform; 4. Slot; 41. Insert rod; 5. Fixing base; 51. Water inlet; 52. Spray nozzle; 6. Heat insulation plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 5 As shown in the embodiment of this utility model, a heat treatment device for sprocket production includes a treatment box 1; a pair of sealing doors 11 are slidably connected to the side wall of the treatment box 1; a slide rail 12 is fixedly connected to the top of the treatment box 1; a support frame 13 is slidably connected to the bottom of the slide rail 12; a heating box 14 is provided on the inner side wall of the treatment box 1; a heat preservation box 15 is provided on the inner side wall of the treatment box 1; a cooling box 16 is provided on the inner side wall of the treatment box 1; a pair of first heating wires 17 are fixedly connected to the side wall of the heating box 14; a cold air box 18 is fixedly connected to the side wall of the treatment box 1; the cold air box 18 is located on one side of the cooling box 16. The processing box 1 has multiple sets of partition plates 19 slidably connected to its side wall. During operation, the sprocket requiring heat treatment is placed on top of the support frame 13. Then, a pushing force is applied to the sealing door 11 to close the side wall of the processing box 1. The first heating wire 17 inside the heating box 14 is activated, heating the interior of the heating box 14 and heat-treating the sprocket on top of the support frame 13. After heat treatment, the slide rail 12 can be activated to move the support frame 13. Then, the partition plates 19 are pulled out from the middle of the processing box 1, and the slide rail 12 can move the support frame 13 to the insulation box. At position 15, the partition plate 19 is then inserted into the side wall of the processing box 1 to separate the heating box 14 and the insulation box 15. The temperature of the first heating wire 17 on the side wall of the insulation box 15 will be slightly lower than the temperature inside the heating box 14, thus insulating the sprocket at the top of the support frame 13. After the sprocket has been stored inside the insulation box 15 for a period of time, the partition plate 19 can be pulled out. Then the support frame 13 is moved to the middle of the cooling box 16, and the cold air box 18 is activated to cool the sprocket at the top of the support frame 13. The sprocket is then removed from one side of the cooling box 16, thus completing the heat treatment process of the entire sprocket. The support is driven by the slide rail 12. The frame 13 moves, allowing the sprocket to pass through the heating box 14, the insulation box 15, and the cooling box 16 in sequence. The three processes are completed within the processing box 1, reducing heat loss caused by handling the sprocket and increasing the continuity and integrity of the heat treatment process. The first heating wire 17 in the heating box 14 and the insulation box 15 can be temperature-controlled separately, and the temperature of the insulation box 15 is slightly lower than that of the heating box 14, which can form a temperature gradient that meets the process requirements. After heating, the internal stress of the sprocket can be reduced through the insulation process, and then the sprocket can be cooled by the cold air box 18, which can effectively reduce cracking of the sprocket due to sudden temperature changes and ensure that the hardness of the sprocket meets the standard.

[0025] like Figure 1 and Figure 3As shown, the processing box 1 has an air inlet 2 on its side wall; a hot air box 21 is fixedly connected to the side wall of the processing box 1; a second heating wire 22 is fixedly connected to the top of the hot air box 21; an air outlet 23 is fixedly connected to the side wall of the processing box 1; the air outlet 23 is connected to the cooling box 16; during operation, when the cold air box 18 cools the top of the support frame 13, the gas blown out by the cold air box 18 can enter the air inlet 2, and then the gas inside the air inlet 2 passes through the hot air box 21, where the second heating wire 22 heats the gas. After being heated by the second heating wire 22, the gas can flow to the air outlet 23 and enter the insulation box 15 to form a heat cycle; after the gas blown out by the cold air box 18 is collected through the air inlet 2, it is then introduced into the insulation box 15 through the air outlet 23, thus reusing the originally wasted gas for the insulation process, reducing the energy consumption required for separate heating of the insulation box 15 area, and improving the overall utilization rate.

[0026] like Figure 1 and Figure 4 As shown, a motor 3 is fixedly connected to the bottom end of the support frame 13; a placement platform 31 is fixedly connected to the output end of the motor 3; during operation, the sprocket can be placed on top of the placement platform 31. When the sprocket is heated and cooled inside the processing box 1, the motor 3 can be started to drive the placement platform 31 to rotate, so that the sprocket is heat-treated evenly inside the processing box 1; when the placement platform 31 is rotated by the motor 3, the sprocket rotates accordingly, which can make all parts of the sprocket evenly contact the heat of the heating box 14 area and the cooling gas of the cooling box 16 area, reducing the problem of uneven heating or cooling caused by fixed placement, and reducing deformation and cracks caused by local temperature differences.

[0027] like Figure 1 and Figure 4 As shown, the top of the placement platform 31 has multiple sets of slots 4; the top of each slot 4 is slidably connected to a rod 41; the slots 4 are arranged in an array on the top of the placement platform 31; during operation, the sprocket can be placed on the top of the placement platform 31, and then the rod 41 can be inserted into the hole in the middle of the sprocket, and then the rod 41 can be inserted into the slot 4, which can fix the sprocket on the top of the placement platform 31 and keep the sprocket stable when the placement platform 31 drives the sprocket to rotate; by inserting the rod 41 into the hole in the middle of the sprocket and cooperating with the slot 4 to fix it, the sprocket can be fixed on the top of the placement platform 31, reducing the movement of the sprocket caused by centrifugal force during the rotation of the placement platform 31. The multiple sets of rods 41 on the top of the placement platform 31 can also be adjusted according to the different sizes of sprockets to increase the fixing effect of sprockets of different sizes.

[0028] like Figures 1 to 2As shown, a fixed base 5 is fixedly connected to the top of the processing box 1; a water inlet 51 is fixedly connected to the top of the fixed base 5; the fixed base 5 is located at the top of the cooling box 16; multiple spray nozzles 52 are fixedly connected to the bottom of the fixed base 5; during operation, when the sprocket stays inside the cooling box 16 and the cold air box 18 cools the sprocket, the water inlet 51 can be connected to the coolant and then the water pump can be started, and the coolant can be sprayed out from the spray nozzles 52 to cool the sprocket on the top of the placement platform 31; the coolant sprayed through the spray nozzles 52 can directly contact the surface of the sprocket, and in combination with the gas cooling of the cold air box 18, it can significantly accelerate the cooling speed and shorten the processing time of the cooling stage.

[0029] like Figure 2 and Figure 5 As shown, a pair of heat insulation plates 6 are fixed to the side wall of the partition plate 19; the heat insulation plates 6 are correspondingly arranged with the partition plate 19; during operation, when the partition plate 19 divides the interior of the processing box 1, the temperature of each area inside the processing box 1 is different. At this time, the heat insulation plates 6 can block the temperature of different areas inside the processing box 1, so that the temperature of each area remains stable; the heat insulation plates 6 can effectively block the temperature transfer inside the processing box 1, reduce the mutual interference caused by temperature transfer, and improve the heat treatment quality.

[0030] Working principle: The sprocket to be heat-treated is placed on top of the support frame 13. Then, a pushing force is applied to the sealing door 11 to close the side wall of the treatment box 1. The first heating wire 17 inside the heating box 14 is activated, which heats the inside of the heating box 14 and heats the sprocket on top of the support frame 13. After the sprocket inside the support frame 13 is heat-treated, the slide rail 12 can be activated to move the support frame 13. Then, the partition plate 19 is pulled out from the middle of the treatment box 1. The slide rail 12 can move the support frame 13 to the position of the insulation box 15. Then, the partition plate 19 is inserted. The side wall of the processing chamber 1 separates the heating chamber 14 and the insulation chamber 15. The temperature of the first heating wire 17 on the side wall of the insulation chamber 15 is slightly lower than the temperature inside the heating chamber 14. This insulates the sprocket at the top of the support frame 13. After the sprocket has been stored inside the insulation chamber 15 for a period of time, the partition plate 19 can be pulled out. Then, the support frame 13 is moved to the middle of the cooling chamber 16, and the cold air box 18 is activated to cool the sprocket at the top of the support frame 13. The sprocket is then removed from one side of the cooling chamber 16, thus completing the heat treatment process for the entire sprocket. When the cold air box 18 cools the top of the support frame 13, the cold air box... The blown gas can enter the air inlet 2, and then the gas inside the air inlet 2 passes through the hot air box 21. The second heating wire 22 can heat the gas. After being heated by the second heating wire 22, the gas can flow to the air outlet 23 and enter the heat preservation box 15 to form a heat circulation. The sprocket can be placed on the top of the placement platform 31. When the sprocket is heated and cooled inside the processing box 1, the motor 3 can be started to drive the placement platform 31 to rotate, so that the sprocket is heat-treated evenly inside the processing box 1. The sprocket can be placed on the top of the placement platform 31, and then the insertion rod 41 can be inserted into the hole in the middle of the sprocket. The rear insert rod 41 is inserted into the slot 4 to fix the sprocket to the top of the placement platform 31. When the placement platform 31 drives the sprocket to rotate, the sprocket remains stable. When the sprocket stays inside the cooling box 16 and the cold air box 18 cools the sprocket, the water inlet 51 can be connected to the coolant and then the water pump can be started. The coolant can be sprayed out from the spray nozzle 52 to cool the sprocket on the top of the placement platform 31. When the partition plate 19 divides the inside of the processing box 1, the temperature of each area inside the processing box 1 is different. At this time, the heat insulation plate 6 can block the temperature of different areas inside the processing box 1, so that the temperature of each area remains stable.

[0031] 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 embodiments and descriptions in the specification 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 the claimed utility model.

Claims

1. A sprocket production heat treatment apparatus characterized by comprising: a sprocket production heat treatment device; and a sprocket production heat treatment device control unit. The equipment includes a processing box (1); a pair of sealed doors (11) are slidably connected to the side wall of the processing box (1); a slide rail (12) is fixedly connected to the top of the processing box (1); a support frame (13) is slidably connected to the bottom of the slide rail (12); a heating box (14) is opened on the inner side wall of the processing box (1); a heat preservation box (15) is opened on the inner side wall of the processing box (1); a cooling box (16) is opened on the inner side wall of the processing box (1); a pair of first heating wires (17) are fixedly connected to the side wall of the heating box (14); a cold air box (18) is fixedly connected to the side wall of the processing box (1); the cold air box (18) is located on one side of the cooling box (16); and multiple sets of partition plates (19) are slidably connected to the side wall of the processing box (1).

2. The heat treatment apparatus for producing a chain wheel according to claim 1, characterized by: The processing box (1) has an air inlet (2) on its side wall; a hot air box (21) is fixedly connected to the side wall of the processing box (1); a second heating wire (22) is fixedly connected to the top of the hot air box (21); an air outlet (23) is fixedly connected to the side wall of the processing box (1); and the air outlet (23) is connected to the cooling box (16).

3. The heat treatment apparatus for producing a chain wheel according to claim 2, characterized in that: The bottom end of the support frame (13) is fixedly connected to a motor (3); the output end of the motor (3) is fixedly connected to a placement platform (31).

4. The heat treatment apparatus for producing a chain wheel according to claim 3, characterized in that: The top of the placement platform (31) has multiple slots (4); the top of the slots (4) is slidably connected to a plug (41); the slots (4) are arranged in an array on the top of the placement platform (31).

5. The heat treatment apparatus for sprocket production according to claim 4, characterized in that: The top of the treatment tank (1) is fixedly connected to a fixing seat (5); the top of the fixing seat (5) is fixedly connected to a water inlet (51); the fixing seat (5) is located at the top of the cooling tank (16); and multiple spray nozzles (52) are fixedly connected to the bottom of the fixing seat (5).

6. The heat treatment apparatus for sprocket production according to claim 5, characterized in that: A pair of heat insulation plates (6) are fixed to the side wall of the partition plate (19); the heat insulation plates (6) are arranged correspondingly to the partition plate (19).

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