Surface heat treatment equipment for hydraulic pipe fitting machining

Abstract

The utility model belongs to the technical field of hydraulic pipe fitting machining, and discloses a surface heat treatment device for hydraulic pipe fitting machining, which comprises a heat treatment box, a pushing plate and a bearing plate, a stand column is arranged at the top of the heat treatment box, a heating structure is arranged in the heat treatment box, a top plate is arranged at the top end of the stand column, and a pushing structure is arranged on the top plate. The pushing plate is connected with the pushing structure, a fixing ring is arranged on the pushing plate, a driving structure is arranged on the pushing plate, the bearing plate is movably connected with the driving structure, and a bearing ring is arranged on the bearing plate. The motor drives the transmission shaft and the bearing plate on the transmission shaft to rotate, and the bearing plate drives the bearing ring and the hydraulic pipe fitting in the bearing ring to rotate, so that the hydraulic pipe fitting is in full contact with heat, the surface of the hydraulic pipe fitting is fully subjected to heat treatment, and the heat treatment efficiency and the heat treatment quality of the hydraulic pipe fitting are improved; and the quality performance of the hydraulic pipe fitting is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pipe fitting production technology, specifically a surface heat treatment device for processing hydraulic pipe fittings. Background Technology

[0002] Hydraulic fittings include pipes and pipe joints. During the production process, hydraulic fittings require surface heat treatment to ensure their quality. Most existing hydraulic fitting processing uses surface heat treatment equipment.

[0003] For example, patent publication number CN216337857U discloses a surface heat treatment device for hydraulic pipe processing, including a main structure, spray boxes, and a cooling fan. The main structure has a connecting frame inside, with magnetic rings evenly distributed on the frame. The side of the connecting frame away from the magnetic rings is connected to the inner wall of one side of the main structure via a connector. Drive rollers are provided on both sides of the main structure, and these rollers are connected to the main structure via fixed plates. Two sets of spray boxes are symmetrically arranged, with each spray box located on one side of the magnetic rings. The spray boxes are connected to a liquid pump via a delivery pipe, and the liquid pump is located in a water storage chamber inside the main structure. This surface heat treatment device for hydraulic pipe processing, equipped with drive rollers, can move the hydraulic pipe, causing it to pass sequentially through the magnetic rings and the inside of the spray nozzles. This allows for heating and cooling of the hydraulic pipe using the magnetic rings and spray nozzles, thus enriching its functionality and improving the heat treatment efficiency of the device.

[0004] The aforementioned patents simply use fans to dissipate heat from the outside of the water storage chamber. After prolonged operation, the temperature of the coolant continuously cooling the high-temperature hydraulic pipes may also rise, potentially leading to ineffective heat treatment. Furthermore, these patents suffer from limitations in adaptability to different sizes of hydraulic pipe fittings, low versatility, and the inability to circulate heat effectively. Based on these issues, the applicant has proposed a surface heat treatment device for hydraulic pipe fitting processing. Utility Model Content

[0005] The purpose of this invention is to overcome the problems of poor heat treatment effect, inability to adapt to different sizes of hydraulic pipe fittings, low versatility, and inability to circulate heat in existing hydraulic pipe fitting heat treatment methods. The invention provides a surface heat treatment equipment for processing hydraulic pipe fittings with a reasonable structural design, adaptability to different sizes of hydraulic pipe fittings, good heat treatment effect, high versatility, and the ability to circulate heat.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0007] A surface heat treatment device for hydraulic pipe fittings includes a heat treatment chamber, a pusher plate, and a support plate. A column is mounted on top of the heat treatment chamber, and a heating structure is installed inside the chamber. A top plate is mounted on the top of the column, and a pusher structure is mounted on the top plate. The heating structure generates a large amount of heat, providing sufficient heat for the surface heat treatment of the hydraulic pipe fittings, thereby improving the heat treatment efficiency and quality. The pusher plate is connected to the pusher structure, and a fixing ring and a driving structure are mounted on the pusher plate. The support plate is movably connected to the driving structure and has a bearing plate. The hydraulic fittings requiring heat treatment are suspended within the carrier ring. A pusher plate, driven by a pushing structure, moves the carrier plate, carrier ring, and hydraulic fittings downwards, allowing the fittings to enter the heat treatment chamber. A fixing ring contacts the inner wall of the top of the heat treatment chamber, sealing it and preventing heat from escaping between the inner wall and the fixing ring, thus improving heat utilization efficiency. The carrier plate, driven by a drive structure, rotates, causing the hydraulic fittings to rotate within the heat treatment chamber, ensuring thorough heat treatment of the fittings and improving both the efficiency and quality of the heat treatment process.

[0008] Preferably, the heating structure includes heating rods, and heating grooves are provided on the inner wall and bottom of the heat treatment chamber. Heating blocks are provided on the inner wall of the heating grooves, and the heating rods are positioned between the heating blocks. The presence of heating rods on the inner wall and bottom of the heat treatment chamber allows heat to flow from the inner wall and bottom to the center of the heat treatment chamber, enabling rapid heating of the interior of the heat treatment chamber during the heat treatment of hydraulic pipes. This facilitates rapid heat treatment of the hydraulic pipes, improving the heat treatment efficiency and quality.

[0009] Preferably, the pushing structure includes a hydraulic cylinder mounted on the top plate. A piston rod is mounted on the hydraulic cylinder, and a connecting rod is mounted on the piston rod, connecting the connecting rod to the pushing plate. The hydraulic cylinder and piston rod drive the pushing plate to rise or fall. Under the action of the pushing structure, the pushing plate drives the bearing plate, bearing ring, and hydraulic pipes inside the bearing ring to move downward, allowing the hydraulic pipes to enter the heat treatment chamber. The fixing ring contacts the inner wall of the top of the heat treatment chamber, sealing the heat treatment chamber and preventing heat from flowing out between the inner wall of the heat treatment chamber and the fixing ring, thus improving the heat utilization efficiency.

[0010] Preferably, the push plate is provided with a limiting ring, and the column passes vertically through the limiting ring. The push plate moves vertically under the action of the hydraulic cylinder, and the limiting ring rises or falls along the column, so that the limiting ring plays a limiting role in the vertical movement of the push plate, so that the fixing ring on the push plate can accurately enter the heat treatment box, thereby improving the sealing between the heat treatment box and the fixing ring.

[0011] Preferably, the drive structure includes a motor mounted on a push plate. A drive shaft is mounted on the motor and connected to a support plate. The motor drives the drive shaft and the support plate on the drive shaft to rotate. The support plate drives the support ring and the hydraulic pipes inside the support ring to rotate, so that the hydraulic pipes are in full contact with heat and the surface of the hydraulic pipes is fully heat-treated, thereby improving the heat treatment efficiency and quality of the hydraulic pipes and enhancing their quality performance.

[0012] Preferably, the edge of the bearing plate is provided with a fixing groove, and an auxiliary wheel is provided in the fixing groove by means of a pin. A support plate is provided at the bottom of the fixing ring and the support plate is connected to the bottom of the auxiliary wheel. The bearing plate rotates in the fixing ring under the action of the motor, and the auxiliary wheel rotates on the support plate, so that the support plate can support the auxiliary wheel, so that the bearing plate drives the hydraulic pipe to rotate smoothly and fully heat-treat the hydraulic pipe.

[0013] Preferably, the push plate has an inner cavity, an exhaust pipe communicating with the inner cavity is provided at the bottom of the push plate, and an exhaust fan is provided in the exhaust pipe. The fixing ring has a ventilation cavity communicating with the inner cavity, and an air inlet pipe communicating with the ventilation cavity is provided at the bottom of the fixing ring. The exhaust fan discharges the airflow in the inner cavity of the push plate through the exhaust pipe, creating a negative pressure in the inner cavity of the push plate. This causes the airflow at the bottom of the heat treatment chamber to carry heat through the air inlet pipe into the ventilation cavity, and then flow into the inner cavity from the ventilation cavity. Finally, the airflow carrying heat is discharged into the heat treatment chamber, allowing the airflow and heat to circulate in the heat treatment chamber and the inner cavity, distributing the heat evenly within the heat treatment chamber and performing uniform heat treatment on the hydraulic pipes. On the other hand, the exhaust fan blows the airflow carrying heat from top to bottom, allowing the airflow carrying heat to enter the hydraulic pipes and perform heat treatment on the inner surface of the hydraulic pipes, further improving the heat treatment quality of the hydraulic pipes.

[0014] Preferably, a sealing layer is provided on the outer wall of the fixed ring. The hydraulic cylinder and piston rod push the push plate downward, and the push plate drives the fixed ring, motor, bearing plate, bearing ring and hydraulic pipes inside the bearing ring to move downward, so that the hydraulic pipes enter the heat treatment box. The fixed ring contacts the inner wall of the top of the heat treatment box, and the sealing layer seals the heat treatment box, improving the sealing between the heat treatment box and the fixed ring, preventing heat from flowing out from between the heat treatment box and the fixed ring, and reducing heat waste.

[0015] Preferably, the bearing ring is designed to be replaceable from the bearing plate. A fastening rod, with an arc-shaped structure, is installed on the inner wall of the bearing ring via a spring. The bearing ring and bearing plate are connected by threads, facilitating the selection of the appropriate bearing ring for different hydraulic fittings. This allows the heat treatment equipment to be adapted to different hydraulic fittings, improving its versatility, expanding its application range, and reducing the cost of manufacturing multiple sets of heat treatment equipment. The hydraulic fitting is suspended within the bearing ring, where it compresses the fastening rod, which in turn compresses the spring. The compressed spring pushes the fastening rod, clamping the hydraulic fitting and thus improving its stability within the bearing ring. Furthermore, an exhaust fan blows heat-carrying air from top to bottom, which enters the bearing ring and heat-treats the surface of the hydraulic fittings inside, thereby improving the heat treatment quality of the hydraulic fittings.

[0016] Beneficial effects:

[0017] 1. The motor drives the drive shaft and the bearing plate on the drive shaft to rotate. The bearing plate drives the bearing ring and the hydraulic fittings inside the bearing ring to rotate, so that the hydraulic fittings come into full contact with heat and the surface of the hydraulic fittings is fully heat-treated, thereby improving the heat treatment efficiency and heat treatment quality of the hydraulic fittings, and thus enhancing the quality performance of the hydraulic fittings.

[0018] 2. The bearing ring and bearing plate are connected by threads, which facilitates the selection of the appropriate bearing ring according to different hydraulic pipe fittings. This allows the heat treatment equipment to be adapted to different hydraulic pipe fittings, improving the versatility of the heat treatment equipment, expanding its application range, and reducing the cost of manufacturing multiple sets of heat treatment equipment. The hydraulic pipe fittings are suspended in the bearing ring, and the hydraulic pipe fittings compress the fastening rods. The fastening rods compress the springs, and the compressed springs push the fastening rods, causing the fastening rods to clamp the hydraulic pipe fittings, thereby improving the stability of the hydraulic pipe fittings in the bearing ring. On the other hand, the exhaust fan blows the airflow carrying heat from top to bottom. The airflow carrying heat enters the bearing ring and heat-treats the surface of the hydraulic pipe fittings inside the bearing ring, thereby improving the heat treatment quality of the hydraulic pipe fittings.

[0019] 3. The exhaust fan pushes the airflow in the inner cavity of the plate out through the exhaust pipe, creating a negative pressure in the inner cavity of the plate. This causes the airflow at the bottom of the heat treatment chamber to carry heat through the air inlet pipe into the ventilation chamber, and then flow from the ventilation chamber into the inner cavity. Finally, the airflow carrying heat is discharged into the heat treatment chamber, allowing the airflow and heat to circulate in the heat treatment chamber and the inner cavity. This ensures that the heat is evenly distributed in the heat treatment chamber, resulting in uniform heat treatment of the hydraulic fittings and thus improving the heat treatment quality of the hydraulic fittings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a partial structural diagram of the present invention, illustrating the connection structure between the push plate and the inner cavity.

[0022] Figure 3 This is a partial structural diagram of the present invention, illustrating the connection structure between the fixing ring and the air inlet pipe.

[0023] Figure 4 This is a partial structural schematic diagram of the present invention, illustrating the connection structure between the bearing plate and the bearing ring.

[0024] Figure 5 This is a partial structural schematic diagram of the present invention, illustrating the connection structure between the bearing ring and the fastening rod.

[0025] Figure 6 This is a partial structural diagram of the present invention, illustrating the connection structure between the pallet and the auxiliary wheel.

[0026] Figure 7 This is a schematic diagram of another embodiment of the present invention.

[0027] In the diagram: 1. Heat treatment chamber, 2. Push plate, 3. Bearing plate, 4. Column, 5. Heating tank, 6. Top plate, 7. Heating block, 8. Heating rod, 9. Hydraulic cylinder, 10. Piston rod, 11. Connecting rod, 12. Limiting ring, 13. Fixing ring, 14. Inner cavity, 15. Exhaust pipe, 16. Inlet pipe, 17. Sealing layer, 18. Support plate, 19. Ventilation cavity, 20. Exhaust fan, 21. Motor, 22. Drive shaft, 23. Bearing ring, 24. Spring, 25. Fastening rod, 26. Fixing groove, 27. Connecting rod, 28. Auxiliary wheel, 29. Heat conducting plate. Detailed Implementation

[0028] The present invention will now be described in more detail with reference to the accompanying drawings.

[0029] Example 1:

[0030] As attached Figure 1-6 As shown, a surface heat treatment device for hydraulic pipe processing includes a heat treatment box 1, a pusher plate 2, and a support plate 3. A column 4 is provided on the top of the heat treatment box 1, a heating structure is provided inside the heat treatment box 1, a top plate 6 is provided at the top of the column 4, and a pusher structure is provided on the top plate 6. The pusher plate 2 is connected to the pusher structure, a fixing ring 13 is provided on the pusher plate 2, and a drive structure is provided on the pusher plate 2. The support plate 3 is movably connected to the drive structure, and a support ring 23 is provided on the support plate 3.

[0031] The heating structure includes a heating rod 8, and heating grooves 5 are provided on the inner wall and bottom of the heat treatment box 1. Heating blocks 7 are provided on the inner wall of the heating grooves 5, and the heating rod 8 is located between the heating blocks 7.

[0032] The pushing structure includes a hydraulic cylinder 9, which is mounted on the top plate 6. A piston rod 10 is mounted on the hydraulic cylinder 9, and a connecting rod 11 is mounted on the piston rod 10. The connecting rod 11 is connected to the pushing plate 2. A limit ring 12 is mounted on the pushing plate 2, and the column 4 passes vertically through the limit ring 12.

[0033] The drive structure includes a motor 21, which is mounted on a push plate 2. A drive shaft 22 is mounted on the motor 21 and connected to a support plate 3. A fixing groove 26 is provided on the edge of the support plate 3. An auxiliary wheel 28 is mounted in the fixing groove 26 via a pin 27. A support plate 18 is provided at the bottom of the fixing ring 13 and connected to the bottom of the auxiliary wheel 28.

[0034] The push plate 2 has an inner cavity 14, and an exhaust pipe 15 communicating with the inner cavity 14 is provided at the bottom of the push plate 2. An exhaust fan 20 is provided in the exhaust pipe 15. A ventilation cavity 19 communicating with the inner cavity 14 is provided in the fixed ring 13. An air inlet pipe 16 communicating with the ventilation cavity 19 is provided at the bottom of the fixed ring 13. A sealing layer 17 is provided on the outer wall of the fixed ring 13. The bearing ring 23 is designed to be replaceable from the bearing plate 3. A fastening rod 25 is provided on the inner wall of the bearing ring 23 by means of a spring 24, and the fastening rod 25 is designed to be an arc-shaped structure.

[0035] Example 2:

[0036] Further explanation is provided based on Example 1, as shown in the appendix. Figure 7 As shown: A heat-conducting plate 29 is provided at the bottom of the heat treatment chamber 1. The hydraulic pipes suspended in the bearing ring 23 rotate with the bearing plate 3 in the heat treatment chamber 1. During the rotation, the hydraulic pipes come into contact with the heat-conducting plate 29, so that the heat on the heat-conducting plate 29 is transferred to the hydraulic pipes, which fully heat-treats the hydraulic pipes, thereby improving the heat treatment efficiency and heat treatment quality of the hydraulic pipes.

[0037] Working principle: Based on the required size of the hydraulic fittings for surface treatment, select a suitable bearing ring 23 and install it on the bearing plate 3. Place the hydraulic fittings vertically inside the bearing ring 23. The fastening rod 25 inside the bearing ring 23 clamps the hydraulic fittings, suspending them within the bearing ring 23. Start the hydraulic cylinder 9. The hydraulic cylinder 9 and piston rod 10 drive the push plate 2 to rise or fall. Under the action of the hydraulic cylinder 9, the push plate 2 moves the bearing plate 3, the bearing ring 23, and the hydraulic fittings inside the bearing ring 23 downwards, allowing the hydraulic fittings to enter the heat treatment chamber 1. The fixing ring 13 contacts the inner wall of the top of the heat treatment chamber 1. The sealing layer 17 on the outer wall of the fixing ring 13 seals the heat treatment chamber 1. Start the heating block 7, causing the heating rod 8 between the heating block 7 to generate heat, heat-treating the hydraulic fittings inside the heat treatment chamber 1. Start the motor 21, which drives the transmission shaft 22 and the... The bearing plate 3 rotates, which drives the bearing ring 23 and the hydraulic pipes inside the bearing ring 23 to rotate, so that the hydraulic pipes are in full contact with heat. The exhaust fan 20 is started, and the exhaust fan 20 pushes the airflow in the inner cavity 14 of the pushing plate 2 out of the exhaust pipe 15, pushing the inner cavity 14 of the pushing plate 2 to form a negative pressure, so that the airflow at the bottom of the heat treatment box 1 carries heat through the air inlet pipe 16 into the ventilation cavity 19, and flows from the ventilation cavity 19 into the inner cavity 14. Finally, the airflow carries heat into the heat treatment box 1, so that the airflow and heat circulate in the heat treatment box 1 and the inner cavity 14, so that the heat is evenly distributed in the heat treatment box 1, and the hydraulic pipes are uniformly heat-treated. After the heat treatment of the hydraulic pipes is completed, the motor 21 is turned off, the hydraulic cylinder 9 is started, and the pushing plate 2 drives the motor 21 and the bearing plate 3 to rise, so that the heat-treated hydraulic pipes are removed from the heat treatment box 1. The hydraulic pipes in the bearing ring 23 are removed, and new hydraulic pipes are put in to continue the heat treatment.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0039] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A surface heat treatment device for processing hydraulic pipe fittings, comprising a heat treatment chamber, a pusher plate, and a bearing plate, characterized in that: The heat treatment chamber is equipped with a column on top, a heating structure inside the heat treatment chamber, a top plate at the top of the column, and a pushing structure on the top plate. The pushing plate is connected to the pushing structure, a fixing ring is provided on the pushing plate, and a driving structure is provided on the pushing plate. The bearing plate is movably connected to the driving structure, and a bearing ring is provided on the bearing plate.

2. The surface heat treatment equipment for hydraulic pipe fitting processing according to claim 1, characterized in that: The heating structure includes a heating rod, and heating grooves are provided on the inner side wall and bottom of the heat treatment box. Heating blocks are provided on the inner wall of the heating grooves, and the heating rod is disposed between the heating blocks.

3. The surface heat treatment equipment for hydraulic pipe fitting processing according to claim 1, characterized in that: The pushing structure includes a hydraulic cylinder, which is mounted on the top plate. A piston rod is mounted on the hydraulic cylinder, and a connecting rod is mounted on the piston rod, connecting the connecting rod to the pushing plate.

4. The surface heat treatment equipment for hydraulic pipe fitting processing according to claim 1, characterized in that: The push plate is equipped with a limit ring, and the column passes vertically through the limit ring.

5. The surface heat treatment equipment for hydraulic pipe fitting processing according to claim 1, characterized in that: The drive structure includes a motor, which is mounted on a push plate. A drive shaft is mounted on the motor and connected to a support plate.

6. The surface heat treatment equipment for hydraulic pipe fittings processing according to claim 1, characterized in that: The bearing plate has a fixing groove on its edge, and an auxiliary wheel is installed in the fixing groove by means of a pin. A support plate is installed at the bottom of the fixing ring and is connected to the bottom of the auxiliary wheel.

7. The surface heat treatment equipment for hydraulic pipe fitting processing according to claim 1, characterized in that: The push plate has an inner cavity, and an exhaust pipe communicating with the inner cavity is provided at the bottom of the push plate. An exhaust fan is provided in the exhaust pipe. The fixing ring has a ventilation cavity communicating with the inner cavity, and an air inlet pipe communicating with the ventilation cavity is provided at the bottom of the fixing ring.

8. The surface heat treatment equipment for hydraulic pipe fitting processing according to claim 7, characterized in that: A sealing layer is provided on the outer wall of the fixed ring.

9. The surface heat treatment equipment for hydraulic pipe fittings processing according to claim 1, characterized in that: The bearing ring is designed to be replaceable from the bearing plate. A fastening rod is provided on the inner wall of the bearing ring via a spring, and the fastening rod is designed to be arc-shaped.

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