Device for preventing ultrasonic frequency quenching cooling water from splashing back

Abstract

The utility model provides a device for preventing ultrasonic frequency quenching cooling water from splashing back, which comprises a cooling pipe, a plurality of nozzles arranged in an annular array are arranged in the cooling pipe and located at one end of an ultrasonic frequency induction coil, the nozzles are communicated with a water source through water pipes, and ball connectors rotationally linked in the pipe wall of the cooling pipe are fixed between the nozzles and the water pipes. The interior of the ball head connector is hollow and communicated with the spray head and the water pipe, a fixing ring fixedly sleeves the outer wall of the cooling pipe, a sleeve in threaded connection sleeves the fixing ring, an extension spring is fixed between the water pipe and the fixing ring, and one end of the sleeve is attached to the water pipe. According to the device for preventing the ultrasonic frequency quenching cooling water from being splashed back, the water outlet angle of the spray head can be changed by rotating the sleeve, so that an included angle smaller than 90 degrees is formed between water sprayed by the spray head and the workpiece shaft, and cooling water splashing back can be greatly reduced. The smaller the included angle between the water sprayed by the spray head and the workpiece shaft is, the less the water splashed back to the superaudio frequency induction coil is, and the situation that the splashing point cannot meet the performance requirement can be effectively reduced.

Description

Technical Field

[0001] The present application relates to a technology for preventing cooling water from splashing back during ultrasonic quenching, and in particular to a device for preventing cooling water from splashing back during ultrasonic quenching. Background Art

[0002] Surface quenching is required in the processing of workpiece shafts. It is a surface heat treatment process that aims to improve the hardness, wear resistance and fatigue strength of the workpiece shaft surface while still leaving its core with high toughness.

[0003] The existing quenching is to heat it to above the critical temperature instantly through the supersonic frequency induction coil, and then spray water to quench the heated part. Because the heating layer is thin, quenching can be achieved by spraying water droplets on the workpiece shaft. After quenching, high-temperature tempering treatment is required, so the location and timing of water spray quenching must be strictly controlled. During the existing quenching, water droplets splashing back to the workpiece shaft surface at the supersonic frequency induction coil will affect the instantaneous heating effect, resulting in the splash point failing to meet the performance requirements. Therefore, cooling water splashing back should be avoided during quenching. Utility Model Content

[0004] The present application provides a device for preventing cooling water from splashing back during ultrasonic quenching, which is used to solve the problem that during the existing workpiece shaft quenching, cooling water splashes back to the workpiece shaft surface at the ultrasonic induction coil, and the splashing point does not meet the performance requirements.

[0005] The present application provides a device for preventing cooling water from splashing back during supersonic frequency quenching, comprising a cooling pipe, wherein a plurality of nozzles in a ring array are arranged at one end of a supersonic frequency induction coil in the cooling pipe, wherein the nozzles are connected to a water source through a water pipe, wherein a ball connector rotatably connected in the pipe wall of the cooling pipe is fixed between the nozzles and the water pipe, wherein the ball connector is hollow inside and connects the nozzles and the water pipe, wherein a fixing ring is sleeved and fixed on the outer wall of the cooling pipe, wherein a sleeve connected by a thread is sleeved on the fixing ring, and wherein a tension spring is fixed between the water pipe and the fixing ring so that one end of the sleeve fits the water pipe.

[0006] Optionally, the cooling pipe is provided with a water retaining ring at one end of the nozzle, and an annular groove is provided at the other opposite end, and the annular groove is connected to the reflux box through a reflux pipe.

[0007] Optionally, a vacuum tube is inserted into the top of the reflux box, the vacuum tube is connected to a vacuum pump, and a baffle that can only accommodate the workpiece shaft passing through is provided on one side of the annular groove opening.

[0008] Optionally, a drain pipe is provided at the bottom of the reflux box, and the drain pipe is connected to the water pipe through a water pump.

[0009] Optionally, a wind ring forming an annular cavity is provided between the nozzle and the ultrasonic induction coil, the wind ring is fixed to the end of the cooling pipe, the inner ring surface of the wind ring is provided with wind holes, and the wind ring is connected to the air compressor through an air duct.

[0010] Optionally, the inner ring surface of the wind ring is a conical surface inclined toward the direction of the nozzle, and the wind holes are arranged on the conical surface to blow air in the direction of the nozzle.

[0011] Compared with the prior art, the device for preventing supersonic quenching cooling water from splashing back provided by the present application has the following beneficial effects:

[0012] By rotating the sleeve, the water outlet angle of the nozzle can be changed, so that the angle between the water sprayed from the nozzle and the workpiece axis is less than 90°, which can greatly reduce the splash back of cooling water. The smaller the angle between the water sprayed from the nozzle and the workpiece axis, the less water will splash back to the supersonic frequency induction coil, which can effectively reduce the cooling water splashing at the supersonic frequency induction coil during the water quenching process, and the splash point cannot meet the performance requirements.

[0013] However, the angle between the water sprayed from the nozzle and the workpiece axis will affect the effect of water quenching. If the inclination is too large, the water quenching cooling effect will be poor. Through the cooperation of the ball head connector and the sleeve, the water outlet angle of the nozzle can be flexibly and timely adjusted according to the different diameters of the workpiece shaft and process requirements, so as to achieve a balance between cooling effect and avoiding splashback. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A front view of a device for preventing cooling water from splashing back during supersonic quenching provided by an embodiment of the present application;

[0016] Figure 2 A device for preventing supersonic quenching cooling water from splashing back is provided in an embodiment of the present application Figure 1 Left view of;

[0017] Figure 3 A device for preventing supersonic quenching cooling water from splashing back is provided in an embodiment of the present application Figure 1 A cross-sectional view of

[0018] Figure 4 A schematic diagram of an air ring of a device for preventing supersonic quenching cooling water from splashing back provided in one embodiment of the present application;

[0019] Figure 5A device for preventing supersonic quenching cooling water from splashing back is provided in an embodiment of the present application Figure 4 A cross-sectional view of

[0020] Figure 6 A schematic diagram showing that the inner surface of the air ring of the device for preventing the back splash of cooling water during ultrasonic quenching provided in one embodiment of the present application is a conical surface.

[0021] Description of reference numerals:

[0022] Cooling pipe 1; ball joint connector 2; nozzle 3; water pipe 4; fixing ring 5; sleeve 6; tension spring 7; supersonic frequency induction coil 8; workpiece shaft 9; return box 10; return pipe 11; vacuum tube 12; drain pipe 13; air ring 14; air hole 15; air duct 16; annular groove 17; baffle 18. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0024] like Figure 1-Figure 6 As shown, an embodiment of the present application provides a device for preventing cooling water from splashing back during supersonic quenching, comprising a cooling tube 1, wherein a plurality of nozzles 3 in a ring array are arranged at one end of a supersonic induction coil 8 in the cooling tube 1, wherein the nozzles 3 are connected to a water source through a water pipe 4, wherein a ball connector 2 rotatably connected in the tube wall of the cooling tube 1 is fixed between the nozzles 3 and the water pipe 4, wherein the ball connector 2 is hollow inside and connects the nozzles 3 and the water pipe 4, wherein a fixing ring 5 is sleeved and fixed on the outer wall of the cooling tube 1, wherein a sleeve 6 with a threaded connection is sleeved on the fixing ring 5, and a tension spring 7 is fixed between the water pipe 4 and the fixing ring 5 so that one end of the sleeve 6 fits with the water pipe 4.

[0025] When in use, the water pipe 4 is connected to the water source, and water can be supplied to the nozzle 3 through the hollow ball connector 2. The workpiece shaft 9 moves toward the cooling tube 1, passes through the supersonic induction coil 8 for heating, and then enters the cooling tube 1. After being quenched by spraying water on the workpiece shaft 9 extending into the cooling tube 1 through the nozzle 3, the workpiece shaft 9 passes through the other end of the cooling tube 1.

[0026] The water pipe 4 is fitted with one end of the sleeve 6 by the tension of the tension spring 7, and the sleeve 6 is threadedly connected with the fixing ring 5. The sleeve 6 can be rotated to move along the axial direction of the cooling tube 1. When the sleeve 6 moves in the direction of the supersonic induction coil 8, the water pipe 4 is pushed to rotate the ball connector 2, driving the nozzle 3 to rotate in the opposite direction, changing the water outlet angle of the nozzle 3, so that the water sprayed by the nozzle 3 can form an angle less than 90° with the workpiece axis 9, and the water that contacts the workpiece axis 9 splashes into the cooling tube 1.

[0027] In this embodiment, the water outlet angle of the nozzle 3 can be changed by rotating the sleeve 6, so that the angle between the water sprayed from the nozzle 3 and the workpiece axis 9 is less than 90 degrees, which can greatly reduce the splashing of cooling water. The smaller the angle between the water sprayed from the nozzle 3 and the workpiece axis 9, the less water splashes back to the supersonic frequency induction coil 8, which can effectively reduce the cooling water splashing at the supersonic frequency induction coil 8 during the water quenching process, and the splashing point can not meet the performance requirements.

[0028] However, the angle between the water sprayed from the nozzle 3 and the workpiece shaft 9 will affect the effect of water quenching. If the inclination is too large, the water quenching cooling effect will be poor. Through the cooperation of the ball head connector 2 and the sleeve 6, the water outlet angle of the nozzle 3 can be flexibly and timely adjusted according to the different diameters of the workpiece shaft 9 and the process requirements, so as to achieve a balance between the cooling effect and avoiding splashback.

[0029] In a possible implementation, the cooling pipe 1 is provided with a water retaining ring at one end of the nozzle 3 , and an annular groove 17 is provided at the other opposite end. The annular groove 17 is connected to the reflux box 10 through the reflux pipe 11 .

[0030] The water after quenching flows to the bottom of the cooling tube 1, and is blocked by the water retaining ring to prevent it from flowing out from one end of the ultrasonic induction coil 8. The water in the cooling tube 1 is concentrated through the annular groove 17 and then flows back to the return box 10 from the return pipe 11.

[0031] In a possible implementation, a vacuum tube 12 is inserted into the top of the reflux box 10, the vacuum tube 12 is connected to a vacuum pump, and a baffle 18 that can only accommodate the workpiece shaft 9 passing through is provided on one side of the opening of the annular groove 17.

[0032] The return box 10 generates negative pressure through the vacuum tube 12, and the annular groove 17 is connected to the return box 10 through the return pipe 11. Air is drawn from the cooling pipe 1 to the return box 10, so that an airflow is formed in the cooling pipe 1 from the water retaining ring to the annular groove 17. The airflow can exert a reverse force on the splashing water droplets, reduce the speed and distance of the splashing, and further prevent the water droplets from splashing on the supersonic frequency induction coil 8. At the same time, the airflow formed in the cooling pipe 1, the return pipe 11 and the annular groove 17 can accelerate the reflux of water, so that the water after water quenching can flow back to the return box 10 more quickly.

[0033] In a possible implementation, a drain pipe 13 is provided at the bottom of the reflux box 10 , and the drain pipe 13 is connected to the water pipe 4 through a water pump.

[0034] The water collected in the reflux box 10 can enter the water pump from the drain pipe 13 and be supplied to the water pipe 4 through the water pump for replenishment and recycling.

[0035] In a possible implementation, a wind ring 14 forming an annular cavity is provided between the nozzle 3 and the ultrasonic induction coil 8, the wind ring 14 is fixed to the end of the cooling pipe 1, the inner ring surface of the wind ring 14 is provided with wind holes 15, and the wind ring 14 is connected to the air compressor through an air duct 16.

[0036] The air ring 14 has an annular cavity inside, and air is supplied through an air duct 16 connected to an air compressor. Air is blown toward the workpiece axis 9 through the air hole 15 to form a disc-shaped wind barrier, which is blocked between the supersonic frequency induction coil 8 and the cooling pipe 1, and can effectively intercept water droplets splashed back from the cooling pipe 1 to prevent water droplets from splashing on the supersonic frequency induction coil 8.

[0037] In a possible implementation, the inner ring surface of the air ring 14 is a conical surface inclined toward the direction of the nozzle 3 , and the air holes 15 are provided on the conical surface to blow air toward the direction of the nozzle 3 .

[0038] The wind ring 14 has a conical inner surface, and the wind ejected from the wind holes 15 thereof can form a conical wind barrier. Blowing wind toward the nozzle 3 can further guide the splashing water droplets, so that the splashing water droplets are splashed into the cooling pipe 1 .

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for preventing cooling water from splashing back during supersonic quenching, comprising a cooling pipe (1), wherein a plurality of nozzles (3) in a ring array are arranged at one end of a supersonic induction coil (8) in the cooling pipe (1), wherein the nozzles (3) are connected to a water source through a water pipe (4), and wherein: A ball connector (2) is fixed between the nozzle (3) and the water pipe (4) and is rotatably connected in the pipe wall of the cooling pipe (1). The interior of the ball connector (2) is hollow and connects the nozzle (3) and the water pipe (4). A fixing ring (5) is sleeved and fixed on the outer wall of the cooling pipe (1). A sleeve (6) connected by a thread is sleeved on the fixing ring (5). A tension spring (7) is fixed between the water pipe (4) and the fixing ring (5) so that one end of the sleeve (6) fits with the water pipe (4).

2. The device for preventing cooling water from splashing back during supersonic quenching according to claim 1, characterized in that: The cooling pipe (1) is provided with a water retaining ring at one end of the nozzle (3), and an annular groove (17) at the other opposite end. The annular groove (17) is connected to the return box (10) through a return pipe (11).

3. The device for preventing cooling water from splashing back during supersonic quenching according to claim 2 is characterized in that: A vacuum tube (12) is inserted into the top of the reflux box (10), and the vacuum tube (12) is connected to a vacuum pump. A baffle (18) that can only accommodate the workpiece shaft (9) passing through is provided on one side of the opening of the annular groove (17).

4. The device for preventing cooling water from splashing back during supersonic quenching according to claim 2 or 3, characterized in that: A drainage pipe (13) is provided at the bottom of the reflux box (10), and the drainage pipe (13) is connected to the water pipe (4) through a water pump.

5. The device for preventing cooling water from splashing back during supersonic quenching according to claim 1 or 2, characterized in that: An air ring (14) forming an annular cavity is provided between the nozzle (3) and the ultrasonic induction coil (8); the air ring (14) is fixed to the end of the cooling pipe (1); an air hole (15) is provided on the inner ring surface of the air ring (14); and the air ring (14) is connected to an air compressor via an air duct (16).

6. The device for preventing cooling water from splashing back during supersonic quenching according to claim 5, characterized in that: The inner ring surface of the wind ring (14) is a conical surface inclined in the direction of the nozzle (3), and the wind hole (15) is arranged on the conical surface and can blow air in the direction of the nozzle (3).

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