Crankshaft heat treatment equipment

Abstract

The utility model relates to the technical field of heat treatment, and discloses crankshaft heat treatment equipment which comprises a bottom plate, two stand columns are fixedly connected to the left end and the right end of the top wall of the bottom plate respectively, rails are fixedly connected to the top ends of the stand columns respectively, racks are arranged on the inner walls of the rails respectively, a plurality of gear wheels are arranged on the top walls of the racks respectively, and the gear wheels are arranged on the top walls of the racks respectively. And a load plate is rotationally connected between every two adjacent gear wheels, a motor is fixedly connected to the front side of the top wall of each load plate, and a motor gear is fixedly connected to the output end of each motor. According to the utility model, the motor drives the loading plate to move left and right, meanwhile, the crankshaft is fixed on the crankshaft hook, the wire spool is used for moving the crankshaft up and down, and after the crankshaft enters the upper end of the heating coil in the heating box, the wire spool moves the crankshaft into the heating coil; and the crankshaft can be heated in all directions in the heating coil.

Description

Technical Field

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

[0002] The crankshaft is an important component in the internal combustion engine, used to convert reciprocating motion into rotational motion. It connects the piston and the connecting rod, converting the up and down reciprocating motion of the piston into continuous rotational motion to drive the car or other mechanical equipment.

[0003] Crankshaft heat treatment equipment is usually used to heat, quench and temper the crankshaft to enhance its strength and durability. Through the quenching process, a quenching layer with high hardness and strong wear resistance can be formed on the surface of the crankshaft, thereby improving its surface hardness and wear resistance. Heat treatment can improve the strength and toughness of the crankshaft, enabling it to withstand greater loads and impacts, making it more suitable for use under high loads, high speeds and harsh working environments.

[0004] Since the crankshaft has an irregular shape, the existing heat treatment equipment will place the crankshaft on the heating table of the heating furnace for heat treatment. This treatment method will cause uneven heating at the contact point between the crankshaft and the heating table, affecting the heat treatment effect and thus reducing the product qualification rate. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a crankshaft heat treatment device, which aims to improve the problem of uneven heating of the contact parts between the crankshaft and the heating table during heating treatment on the heating table.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a crankshaft heat treatment equipment, comprising a base plate, the left and right ends of the top wall of the base plate are fixedly connected to two columns, the top ends of the multiple columns are fixedly connected to a track, the inner walls of the two tracks are provided with racks, the top walls of the two racks are provided with multiple gear wheels, and the adjacent multiple gear wheels are rotatably connected with a load plate, the front side of the top wall of the load plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a motor gear, and the motor gear is meshed with the gear wheel at the front right end, the left side of the top wall of the load plate is fixedly connected to a winding disk, the outer wall of the winding disk is provided with a steel rope, a wire threading hole is opened on the right side of the top wall of the load plate, the bottom end of the steel rope is fixedly connected to a crankshaft hook, the rear side of the top wall of the base plate is fixedly connected to a heating box, the rear side of the heating box is fixedly connected to two heaters, the inner bottom wall of the heating box is provided with two heating coils, and the right side of the top wall of the base plate is provided with an automatic feeding device.

[0007] As a further description of the above technical solution:

[0008] The automatic supply device includes a quenching pool, the rear bottom end of the quenching pool is connected to a drain pipe, a filter valve is provided in the middle of the drain pipe, the output end of the drain pipe is connected to a supply water tank, a water pump is fixedly connected to the front side of the top wall of the supply water tank, the output end of the water pump is connected to a water supply pipe, the input end of the water supply pipe is connected to the top wall of the supply water tank, and an induction valve is provided at the front bottom end of the water supply pipe.

[0009] As a further description of the above technical solution:

[0010] A console is fixedly connected to the left end of the front side of the top wall of the bottom plate, and a plurality of control buttons are installed on the top wall of the console.

[0011] As a further description of the above technical solution:

[0012] One-way doors are provided on the left and right sides of the heating box, and the front and rear ends of the two one-way doors are rotatably connected to the left and right sides of the heating box.

[0013] As a further description of the above technical solution:

[0014] A water filling valve is provided on the rear side of the top wall of the supply water tank, and a handle is fixedly connected to the top wall of the water filling valve.

[0015] As a further description of the above technical solution:

[0016] A heat-insulating plate is fixedly connected to the middle portion of the left side of the top wall of the bottom plate, and the heat-insulating plate is arranged between the heating box and the control console.

[0017] As a further description of the above technical solution:

[0018] A temperature sensing needle is fixedly connected to the front side of the inner wall of the quenching pool, and a temperature gauge is fixedly connected to the front side of the top wall of the quenching pool.

[0019] As a further description of the above technical solution:

[0020] A cooling coil is fixedly connected to the inner bottom wall of the quenching tank.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, the load plate is driven by a motor to move left and right, and the crankshaft is fixed on the crankshaft hook at the same time. The crankshaft is moved up and down using a winding disk. After the crankshaft enters the upper end of the heating coil in the heating box, the winding disk moves the crankshaft to the inside of the heating coil, so that the crankshaft can be heated inside the heating coil and in all directions.

[0023] 2. In the present invention, the heated crankshaft is quenched by the quenching liquid in the quenching pool. During this period, a large amount of quenching liquid will evaporate. The water pump is turned on to pump the quenching liquid in the supply water tank into the quenching pool through the water supply pipe. When the liquid level reaches the sensing valve, the water pump is automatically shut down. When the water pump is turned on, the filter valve on the drain pipe is opened at the same time to circulate and filter the coolant in the quenching pool, thereby improving the quenching efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of a crankshaft heat treatment device proposed by the present utility model;

[0025] Figure 2 This is a three-dimensional diagram of a crankshaft heat treatment device proposed by the present utility model;

[0026] Figure 3 This is a top view of a crankshaft heat treatment device proposed by the present invention;

[0027] Figure 4 This is a structural schematic diagram of a heating coil of a crankshaft heat treatment equipment proposed by the present utility model.

[0028] Legend:

[0029] 1. Base plate; 2. Automatic supply device; 201. Quenching pool; 202. Drain pipe; 203. Make-up water tank; 204. Water pump; 205. Water supply pipe; 206. Induction valve; 207. Filter valve; 3. Column; 4. Track; 5. Rack; 6. Load plate; 7. Gear wheel; 8. Motor; 9. Motor gear; 10. Winding reel; 11. Threading hole; 12. Steel rope; 13. Crankshaft hook; 14. Heating box; 15. Heater; 16. Heating coil; 17. Control console; 18. Control button; 19. Insulation board; 20. Water filling valve; 21. Handle; 22. Temperature sensor needle; 23. Thermometer; 24. Cooling coil; 25. One-way door. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 2 、 Figure 3 and Figure 4The utility model provides an embodiment of a crankshaft heat treatment device, comprising a base plate 1, two columns 3 are fixedly connected to the left and right ends of the top wall of the base plate 1, the tops of the multiple columns 3 are fixedly connected to a track 4, the inner walls of the two tracks 4 are provided with a rack 5, the top walls of the two racks 5 are provided with a plurality of gear wheels 7, the adjacent multiple gear wheels 7 are rotatably connected to a load plate 6, the front side of the top wall of the load plate 6 is fixedly connected to a motor 8, the output end of the motor 8 is fixedly connected to a motor gear 9, the motor gear 9 Engaged with the front right end gear wheel 7, a winding drum 10 is fixedly connected to the left side of the top wall of the load plate 6, and a steel rope 12 is provided on the outer wall of the winding drum 10. A threading hole 11 is opened on the right side of the top wall of the load plate 6, and the bottom end of the steel rope 12 is fixedly connected to the crankshaft hook 13. A heating box 14 is fixedly connected to the rear side of the top wall of the bottom plate 1, and two heaters 15 are fixedly connected to the rear side of the heating box 14. Two heating coils 16 are provided on the inner bottom wall of the heating box 14. An automatic feeding device 2 is provided on the right side of the top wall of the bottom plate 1;

[0032] Specifically, a mobile platform can be formed by the column 3, the track 4 and the rack 5. Gear wheels 7 are installed on the front and rear sides of the load plate 6 for engaging with the rack 5. A motor gear 9 is installed on the output end of the motor 8. The motor gear 9 engages with the gear wheel 7. The rotation of the motor 8 drives the load plate 6 to move along the track 4. A threading hole 11 is opened on the right side of the load plate 6, so that the winding drum 10 can move the crankshaft hook 13 at the bottom end of the steel rope 12 up and down through the threading hole 11. After the crankshaft passes through the one-way door 25 into the heating box 14 and reaches the upper end of the heating coil 16, the crankshaft is moved to the inside of the heating coil 16 by the winding drum 10, and the heating coil 16 is energized by the heater 15, so that the crankshaft can be heated in all directions.

[0033] Reference Figure 1 、 Figure 2 and Figure 3 The automatic supply device 2 includes a quenching tank 201. The rear bottom end of the quenching tank 201 is connected to a drain pipe 202. A filter valve 207 is provided in the middle of the drain pipe 202. The output end of the drain pipe 202 is connected to a supply water tank 203. A water pump 204 is fixedly connected to the front side of the top wall of the supply water tank 203. The output end of the water pump 204 is connected to a water supply pipe 205. The input end of the water supply pipe 205 is connected to the top wall of the supply water tank 203. An induction valve 206 is provided at the bottom front end of the water supply pipe 205.

[0034] Specifically, quenching liquid is added to the quenching pool 201. Since the heated crankshaft contains a large amount of heat, the crankshaft is moved to the quenching pool 201 through the motor 8 and the winding reel 10 for quenching. During this period, the quenching liquid will absorb a large amount of heat and evaporate. When it is necessary to add quenching liquid to the quenching pool 201, the water pump 204 is turned on to pump the quenching liquid in the supply water tank 203 into the quenching pool 201 through the water supply pipe 205. When the water level reaches the sensing valve 206, the sensing valve 206 will generate a signal to turn off the water pump 204. Turning on the water pump 204 and the filter valve 207 on the drain pipe 202 can circulate and filter the coolant in the quenching pool 201, thereby improving the quenching efficiency and quality.

[0035] Reference Figure 1 、 Figure 2 and Figure 3 , a console 17 is fixedly connected to the left end of the front side of the top wall of the bottom plate 1, and a plurality of control buttons 18 are installed on the top wall of the console 17; a one-way door 25 is provided on the left and right sides of the heating box 14, and the front and rear ends of the two one-way doors 25 are rotatably connected to the left and right sides of the heating box 14; a heat insulation board 19 is fixedly connected to the middle part of the left side of the top wall of the bottom plate 1, and the heat insulation board 19 is provided between the heating box 14 and the console 17;

[0036] Specifically, the multiple control buttons 18 on the console 17 allow the operator to easily and precisely control the heating box 14, such as setting the temperature, controlling the heating time, etc. The setting of the one-way door 25 can ensure that heat will not escape from the heating box 14 during the heating process, thereby improving the safety and efficiency of the equipment. The presence of the insulation board 19 further isolates the console 17 and the heating box 14, reducing the risk of injury to the operator during operation.

[0037] Reference Figure 2 and Figure 3 A water filling valve 20 is provided on the rear side of the top wall of the supply water tank 203, and a handle 21 is fixedly connected to the top wall of the water filling valve 20; a temperature sensing needle 22 is fixedly connected to the front side of the inner wall of the quenching pool 201, and a thermometer 23 is fixedly connected to the front side of the top wall of the quenching pool 201; a cooling coil 24 is fixedly connected to the inner bottom wall of the quenching pool 201;

[0038] Specifically, the handle 21 allows the operator to easily open the water injection valve 20 and add quenching liquid inside. The temperature sensing needle 22 and the thermometer 23 can monitor the water temperature in the quenching pool 201 in real time. The water temperature can be accurately controlled by the cooling coil 24 to ensure that the crankshaft reaches the ideal hardness and performance.

[0039] Working principle: A mobile platform can be built by installing a track 4 on the column 3 and installing a rack 5 in the track 4. Gear wheels 7 are installed on the front and rear sides of the load plate 6 to engage with the rack 5. A motor gear 9 is installed on the output end of the motor 8. The motor gear 9 engages with the gear wheel 7. The load plate 6 is driven to move along the track 4 by the rotation of the motor 8. A threading hole 11 is provided on the right side of the load plate 6 for the winding drum 10 to move the crankshaft hook 13 at the bottom end of the steel rope 12 up and down. After the crankshaft passes through the one-way door 25 and enters the heating box 14 to reach the upper end of the heating coil 16, the crankshaft is moved to the inside of the heating coil 16 through the winding drum 10. The heating coil 16 is energized by the heater 15, so that the crankshaft can be heated in all directions and the crankshaft is heated. After heating is completed, the crankshaft is moved out of the heating box 14 through the winding disk 10 and the motor 8 to fully heat the crankshaft, and quenching liquid is added to the quenching pool 201. Because the heated crankshaft contains a large amount of heat, the crankshaft is moved to the quenching pool 201 through the motor 8 and the winding disk 10 for quenching. During this period, the quenching liquid will absorb a large amount of heat and evaporate. When it is necessary to add quenching liquid to the quenching pool 201, the water pump 204 is turned on to pump the quenching liquid in the supply water tank 203 into the quenching pool 201 through the water supply pipe 205. When the water level reaches the induction valve 206, the induction valve 206 will generate a signal to turn off the water pump 204. Turning on the water pump 204 and the filter valve 207 on the drain pipe 202 can circulate and filter the coolant in the quenching pool 201, thereby improving the quenching efficiency and quality.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A crankshaft heat treatment device, comprising a base plate (1), characterized in that: The left and right ends of the top wall of the bottom plate (1) are fixedly connected to two columns (3), the top ends of the plurality of columns (3) are fixedly connected to a track (4), the inner walls of the two tracks (4) are provided with a rack (5), the top walls of the two racks (5) are provided with a plurality of gear wheels (7), the adjacent plurality of gear wheels (7) are rotatably connected to a load plate (6), the front side of the top wall of the load plate (6) is fixedly connected to a motor (8), the output end of the motor (8) is fixedly connected to a motor gear (9), and the motor gear (9) is meshed with the gear wheel (7) at the right end of the front side. A winding drum (10) is fixedly connected to the left side of the top wall of the load plate (6), and a steel rope (12) is provided on the outer wall of the winding drum (10). A threading hole (11) is provided on the right side of the top wall of the load plate (6), and a crankshaft hook (13) is fixedly connected to the bottom end of the steel rope (12). A heating box (14) is fixedly connected to the rear side of the top wall of the bottom plate (1), and two heaters (15) are fixedly connected to the rear side of the heating box (14). Two heating coils (16) are provided on the inner bottom wall of the heating box (14). An automatic feeding device (2) is provided on the right side of the top wall of the bottom plate (1).

2. The crankshaft heat treatment equipment according to claim 1, characterized in that: The automatic supply device (2) comprises a quenching pool (201), the rear bottom end of the quenching pool (201) is connected to a drain pipe (202), a filter valve (207) is provided in the middle of the drain pipe (202), the output end of the drain pipe (202) is connected to a supply water tank (203), a water pump (204) is fixedly connected to the front side of the top wall of the supply water tank (203), the output end of the water pump (204) is connected to a water supply pipe (205), the input end of the water supply pipe (205) is connected to the top wall of the supply water tank (203), and an induction valve (206) is provided at the front bottom end of the water supply pipe (205).

3. The crankshaft heat treatment equipment according to claim 1, characterized in that: A console (17) is fixedly connected to the left end of the front side of the top wall of the bottom plate (1), and a plurality of control buttons (18) are installed on the top wall of the console (17).

4. The crankshaft heat treatment equipment according to claim 1, characterized in that: One-way doors (25) are provided on the left and right sides of the heating box (14), and the front and rear ends of the two one-way doors (25) are rotatably connected to the left and right sides of the heating box (14).

5. The crankshaft heat treatment equipment according to claim 2, characterized in that: A water injection valve (20) is provided on the rear side of the top wall of the water supply tank (203), and a handle (21) is fixedly connected to the top wall of the water injection valve (20).

6. The crankshaft heat treatment equipment according to claim 2, characterized in that: A heat-insulating plate (19) is fixedly connected to the middle portion of the left side of the top wall of the bottom plate (1), and the heat-insulating plate (19) is arranged between the heating box (14) and the control console (17).

7. The crankshaft heat treatment equipment according to claim 2, characterized in that: A temperature sensing needle (22) is fixedly connected to the front side of the inner wall of the quenching pool (201), and a temperature gauge (23) is fixedly connected to the front side of the top wall of the quenching pool (201).

8. The crankshaft heat treatment equipment according to claim 2, characterized in that: A cooling coil (24) is fixedly connected to the inner bottom wall of the quenching tank (201).

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