Spline shaft quenching heat treatment processing device

Abstract

This utility model discloses a spline shaft quenching heat treatment processing device, including a material guiding mechanism, a quenching mechanism, and a tumbling mechanism. The material guiding mechanism includes a coarse pipe and a fine pipe connected to the bottom end of the coarse pipe. The quenching mechanism includes a water tank sleeved at the bottom of the coarse pipe, a water pump connected to the bottom of the inner cavity of the water tank, two water outlet pipes connected and communicating with the water pump, and a diverter pipe sleeved at the top of the water outlet pipes. In this utility model, when the spline shaft enters the fine pipe from the coarse pipe, the water pump is triggered to run briefly, drawing cold water from the water tank to the water outlet pipes. The diverter pipe and the nozzle cooperate to spray the spline shaft all over, helping it move into the fine pipe under the action of gravity. The small diameter of the fine pipe and the spline shaft filling its internal space result in water entering faster than exiting, so that the spline shaft is fully surrounded by cold water, achieving uniform cooling. At the same time, the motor drives the rollers to rub against the spline shaft to make it rotate, further improving the cooling efficiency and reducing water consumption.

Description

Technical Field

[0001] This utility model relates to the field of quenching heat treatment technology, specifically to a spline shaft quenching heat treatment processing device. Background Technology

[0002] The purpose of quenching is to transform supercooled austenite into martensite or bainite, obtaining a martensitic or bainitic microstructure. This is then followed by tempering at different temperatures to significantly improve the rigidity, hardness, wear resistance, fatigue strength, and toughness of the steel, thereby meeting the diverse requirements of various mechanical parts and tools. Quenching can also be used to achieve specific physical and chemical properties of certain special steels, such as ferromagnetism and corrosion resistance.

[0003] Traditional quenching processes use continuous water pouring to cool the workpiece. Although this provides sufficient cooling water to ensure the cooling effect, this crude cooling method significantly increases the overall quenching cost, making water resources one of the main constraints on the economics of the process. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A spline shaft quenching heat treatment processing device includes a material guiding mechanism, a quenching mechanism, and a tumbling mechanism. The material guiding mechanism includes a coarse tube and a fine tube connected to the bottom end of the coarse tube. The quenching mechanism includes a water tank sleeved at the bottom of the coarse tube, a water pump connected to the bottom of the inner cavity of the water tank, two water outlet pipes connected and communicating with the water pump, a diverter pipe sleeved at the top of the water outlet pipe, and multiple nozzles installed inside the diverter pipe, with the inner ends of the nozzles extending into the interior of the coarse tube. The tumbling mechanism includes a motor embedded at the top of the coarse tube and two rollers sleeved on the outside of the motor output shaft, with the bottom of both rollers rotating through the top of the fine tube.

[0007] By adopting the above technical solution, when the spline shaft enters the thinner tube from the thicker tube, the water pump is triggered to run briefly, drawing cold water from the water tank to the outlet pipe. The distributor pipe and the nozzle work together to spray the spline shaft all over, helping it move into the thinner tube under the action of gravity. The thinner tube has a small diameter, and the spline shaft fills its internal space, resulting in water entering faster than exiting. This ensures that the spline shaft is fully surrounded by cold water, achieving uniform cooling. At the same time, the motor drives the rollers to rub against the spline shaft, causing it to rotate, further improving the cooling efficiency and reducing water consumption.

[0008] In a preferred embodiment, the present invention can be further configured such that: multiple nozzles on the inner side of the diversion pipe are equally spaced and arranged in a row at an angle, and the nozzles are connected to the inside of the water outlet pipe through the diversion pipe.

[0009] In a preferred embodiment, the present invention can be further configured as follows: a receiving mechanism is provided on the outside of the water tank, the receiving mechanism including a support fixed to the bottom of the water tank, two guide rods slidably passing through the top of the support, a U-shaped plate connected between the two guide rods, a receiving plate movably connected to the U-shaped plate via a rotating shaft, a transmission rod rotatably passing through the front and rear sides of the U-shaped plate, and two cylinders movably connected to the transmission rod, the two cylinders being fixed to the front and rear sides of the support respectively.

[0010] In a preferred embodiment, the present invention can be further configured such that: both inner side walls of the transmission rod are fixedly connected with circular protrusions, and both front and rear sides of the support are provided with sliding grooves suitable for the circular protrusions to slide.

[0011] In a preferred embodiment, this utility model can be further configured as follows: two cylinders are connected in series, and both the water pump and the cylinders are electrically connected to an external PLC.

[0012] In a preferred embodiment, the present invention can be further configured such that: a feeding mechanism is provided on the front side of the U-shaped plate, the feeding mechanism including a gear connected to the front end of the rotating shaft, a toothed plate meshing with one side of the gear, and an electric push rod connected between the U-shaped plate and the toothed plate.

[0013] In a preferred embodiment, the present invention can be further configured such that: a receiving box is fixedly connected to the top of the support, the receiving box is attached to one side of the water tank, and the bottom end of the thin tube extends movably into the interior of the receiving box.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] 1. In this utility model, when the spline shaft enters the thinner tube from the thicker tube, the water pump is triggered to run briefly, drawing cold water from the water tank to the outlet pipe. The distributor pipe and the nozzle work together to spray the spline shaft all over, helping it move into the thinner tube under the action of gravity. The thinner tube has a small diameter, and the spline shaft fills its internal space, resulting in water entering faster than exiting, so that the spline shaft is fully surrounded by cold water, achieving uniform cooling. At the same time, the motor drives the roller to rub against the spline shaft to make it rotate, further improving the cooling efficiency and reducing water consumption.

[0016] 2. In this utility model, after the spline shaft is heat-treated, the movable support approaches the spline shaft, and then the movable end of the cylinder is extended. The transmission rod drives the receiving plate, which is guided by the guide rod, to rise. After the receiving plate approaches the bottom of the spline shaft, the spline shaft is moved onto the receiving plate. Then the movable end of the cylinder is retracted. Under the same principle, the receiving plate carries the spline shaft down. This allows for easy movement of large and heavy spline shafts, improving the safety of the transfer operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the overall structure of the present invention when receiving materials;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention during material feeding;

[0019] Figure 3 This is a schematic diagram showing the cooperation relationship between the material guiding mechanism, quenching mechanism and tumbling mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the material receiving mechanism of this utility model;

[0021] Figure 5 This utility model Figure 4 Enlarged view of the A-section structure;

[0022] Figure 6 This is a schematic diagram showing the connection relationship between the U-shaped plate and the transmission rod of this utility model.

[0023] Figure label:

[0024] 100. Feeding mechanism; 110. Coarse tube; 120. Fine tube;

[0025] 200. Quenching mechanism; 210. Water tank; 220. Water pump; 230. Water outlet pipe; 240. Diverter pipe; 250. Nozzle;

[0026] 300. Tilting mechanism; 310. Motor; 320. Roller;

[0027] 400. Receiving mechanism; 410. Support; 420. Guide rod; 430. U-shaped plate; 440. Receiving plate; 450. Transmission rod; 460. Cylinder;

[0028] 500. Feeding mechanism; 510. Gear; 520. Gear plate; 530. Electric push rod;

[0029] 600. Receiver box. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0031] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0032] The following describes, with reference to the accompanying drawings, some embodiments of the spline shaft quenching heat treatment processing apparatus provided by this utility model.

[0033] Example 1:

[0034] Combination Figure 1-6 As shown, the spline shaft quenching heat treatment processing device provided by this utility model includes a material guiding mechanism 100, a quenching mechanism 200 and a tumbling mechanism 300. The material guiding mechanism 100 includes a thick tube 110 and a thin tube 120 connected to the bottom end of the thick tube 110.

[0035] The quenching mechanism 200 includes a water tank 210 sleeved at the bottom of the coarse pipe 110, a water pump 220 connected to the bottom of the inner cavity of the water tank 210, two water outlet pipes 230 connected and communicating with the water pump 220, a diversion pipe 240 sleeved at the top of the water outlet pipe 230, and a plurality of nozzles 250 installed inside the diversion pipe 240, the inner end of the nozzles 250 extending into the interior of the coarse pipe 110;

[0036] The tumbling mechanism 300 includes a motor 310 embedded in the top of the thick tube 110 and two rollers 320 sleeved on the outside of the output shaft of the motor 310. The bottom of the two rollers 320 rotates through the top of the thin tube 120.

[0037] Furthermore, multiple nozzles 250 inside the diversion pipe 240 are arranged at equal intervals and in a row at an angle. The nozzles 250 are connected to the inside of the water outlet pipe 230 through the diversion pipe 240. The layout design of the nozzles 250 can spray the outer wall of the spline shaft evenly and quickly, thereby improving the cooling speed of the spline shaft.

[0038] Furthermore, the two cylinders 460 are connected in series, and both the water pump 220 and the cylinders 460 are electrically connected to an external PLC. Using an external PLC makes it easier to control this device.

[0039] Furthermore, a receiving box 600 is fixedly connected to the top of the support 410. The receiving box 600 is attached to one side of the water tank 210. The bottom end of the thin tube 120 extends movably into the inside of the receiving box 600. The receiving box 600 can collect the cooling water and spline shaft flowing out from the thin tube 120 in a unified manner, improving the comfort of using this device.

[0040] Example 2:

[0041] Combination Figure 1 , 2 and Figure 4As shown, based on Embodiment 1, a receiving mechanism 400 is provided on the outside of the water tank 210. The receiving mechanism 400 includes a support 410 fixedly connected to the bottom of the water tank 210, two guide rods 420 slidably passing through the top of the support 410, a U-shaped plate 430 connected between the two guide rods 420, a receiving plate 440 movably connected to the U-shaped plate 430 via a rotating shaft, a transmission rod 450 rotatably passing through the front and rear sides of the U-shaped plate 430, and two cylinders 46 movably connected to the transmission rod 450. Two cylinders 460 are fixed to the front and rear sides of the support 410 respectively. After the spline shaft is heat-treated, the support 410 is moved closer to the spline shaft. Then, the movable end of the cylinder 460 is extended. The transmission rod 450 drives the receiving plate 440, which is guided by the guide rod 420, to rise. After the receiving plate 440 is close to the bottom of the spline shaft, the spline shaft is moved onto the receiving plate 440. Then, the movable end of the cylinder 460 is retracted. Under the same principle, the receiving plate 440 lowers with the spline shaft. In this way, the large and heavy spline shaft can be moved easily.

[0042] Furthermore, the transmission rod 450 has circular protrusions fixed to both inner side walls, and the support 410 has sliding grooves on both the front and rear sides suitable for sliding the circular protrusions. The circular protrusions and sliding grooves cooperate to improve the stability of the movement of the transmission rod 450.

[0043] Example 3:

[0044] Combination Figure 1 , 2 4 and Figure 5 As shown, in the above embodiment, a feeding mechanism 500 is provided on the front side of the U-shaped plate 430. The feeding mechanism 500 includes a gear 510 connected to the front end of the rotating shaft, a toothed plate 520 meshing with one side of the gear 510, and an electric push rod 530 connected between the U-shaped plate 430 and the toothed plate 520. After the receiving plate 440 receives the spline shaft, the movable end of the electric push rod 530 is controlled to retract. Then, the toothed plate 520 causes the rotating shaft to rotate through the gear 510. Then, the right end of the receiving plate 440 tilts down, and the spline shaft slides into the thick pipe 110 by itself, thereby improving the ease of feeding.

[0045] The working principle and usage process of this utility model are as follows: When the spline shaft enters the thin tube 120 from the thick tube 110, the water pump 220 is controlled to run for a short time (30s). Then, the cold water in the water tank 210 is drawn into the two outlet pipes 230. Subsequently, the diverter pipe 240 and the nozzle 250 cooperate to spray the spline shaft. Under the action of gravity, the spline shaft moves down and enters the thin tube 120. Since the diameter of the thin tube 120 is much smaller than that of the thick tube 110, and the spline shaft fills the internal space of the thin tube 120, the water inlet speed is greater than the water outlet speed. Therefore, the spline shaft is fully surrounded by the cold water in the thin tube 120, achieving uniform cooling. At the same time, the motor 310 drives the two rollers 320 to rotate. The rollers 320 rotate due to friction with the spline shaft, thereby further improving the cooling efficiency of the spline shaft and reducing the use of water resources.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A spline shaft quenching and heat treatment processing device, characterized in that, include: The material guiding mechanism (100) includes a thick tube (110) and a thin tube (120) connected to the bottom end of the thick tube (110); The quenching mechanism (200) includes a water tank (210) sleeved at the bottom of the thick pipe (110), a water pump (220) connected to the bottom of the inner cavity of the water tank (210), two water outlet pipes (230) connected and communicating with the water pump (220), a diversion pipe (240) sleeved at the top of the water outlet pipe (230), and a plurality of nozzles (250) installed inside the diversion pipe (240), the inner end of the nozzles (250) extending into the interior of the thick pipe (110); The tumbling mechanism (300) includes a motor (310) embedded in the top of the thick tube (110) and two rollers (320) sleeved on the outside of the output shaft of the motor (310). The bottom of the two rollers (320) rotates through the top of the thin tube (120).

2. The spline shaft quenching heat treatment processing apparatus according to claim 1, characterized in that, Multiple nozzles (250) inside the diversion pipe (240) are arranged at equal intervals and in a row at an angle. The nozzles (250) are connected to the inside of the water outlet pipe (230) through the diversion pipe (240).

3. The spline shaft quenching heat treatment processing apparatus according to claim 1, characterized in that, The water tank (210) is provided with a receiving mechanism (400) on the outside. The receiving mechanism (400) includes a support (410) fixed to the bottom of the water tank (210), two guide rods (420) slidably passing through the top of the support (410), a U-shaped plate (430) connected between the two guide rods (420), a receiving plate (440) movably connected to the U-shaped plate (430) through a rotating shaft, a transmission rod (450) rotatably passing through the front and rear sides of the U-shaped plate (430), and two cylinders (460) movably connected to the transmission rod (450). The two cylinders (460) are respectively fixed to the front and rear sides of the support (410).

4. The spline shaft quenching heat treatment processing apparatus according to claim 3, characterized in that, The transmission rod (450) has circular protrusions fixed to both sides of its inner sidewalls, and the support (410) has grooves on both the front and rear sides suitable for sliding the circular protrusions.

5. The spline shaft quenching heat treatment processing apparatus according to claim 3, characterized in that, Two cylinders (460) are connected in series, and both the water pump (220) and the cylinders (460) are electrically connected to an external PLC.

6. The spline shaft quenching heat treatment processing apparatus according to claim 3, characterized in that, The front side of the U-shaped plate (430) is provided with a feeding mechanism (500), which includes a gear (510) connected to the front end of the rotating shaft, a toothed plate (520) meshing with one side of the gear (510), and an electric push rod (530) connected between the U-shaped plate (430) and the toothed plate (520).

7. The spline shaft quenching heat treatment processing apparatus according to claim 3, characterized in that, A receiving box (600) is fixedly connected to the top of the support (410), the receiving box (600) is attached to one side of the water tank (210), and the bottom end of the thin tube (120) extends movably into the inside of the receiving box (600).

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