A heat treatment method and equipment for high-pressure valve manufacturing

Abstract

This invention relates to the field of heat treatment processing technology, and provides a heat treatment equipment and method for producing high-pressure valves. The equipment includes: a suspension frame suspended at a high position; a cover body one and a cover body two are fixedly connected sequentially from left to right on the bottom side of the suspension frame; a stirring drum is arranged on a side close to each other on the cover body one and cover body two; a heating pipe is installed on the right side of cover body one to heat iron sand inside the stirring drum; and an output pipe is connected to the right side of cover body two via a valve; a conical cylinder serving as a container for holding the iron sand and high-pressure valves; the conical cylinder is conical in shape, and multiple snap-fit ​​components are rotatably connected to the inner wall of the conical cylinder. By using high-temperature iron sand to polish the surface of the workpiece to remove impurities remaining on the surface due to quenching, this heat treatment method eliminates the need for flames and special gases, thereby reducing the instability factors caused by special gases and improving the safety and stability of the high-pressure valve production process.

Description

Technical Field

[0001] This invention relates to the field of heat treatment processing technology, specifically to a heat treatment method and equipment for the production of high-pressure valves. Background Technology

[0002] High-pressure valves have been widely used in the power industry, superhard material manufacturing, chemical industry, petrochemical industry, processing technology, hydrostatic treatment, ultra-high hydrostatic extrusion, powder metallurgy, metal forming, and geophysical and geological research. In the heat treatment process of high-pressure valve manufacturing, the main body of the valve is annealed, normalized, quenched, and tempered to remove internal impurities and improve its overall material properties to meet actual use requirements.

[0003] A search revealed a heat treatment method and equipment for high-pressure valve production (publication number CN117187517B). This method and equipment features a rational and efficient overall process for heat treatment of valve workpieces. Specifically, the quenching process is tailored to the actual processing state and requirements of the steel workpieces. Through the combined use of a heat treatment purification and recovery mechanism and a spray quenching mechanism, residues and contaminants adhering to the surface of the valve workpieces during quenching are removed, reducing unnecessary subsequent processes and improving overall economic efficiency. Furthermore, the heat generated during quenching can be recovered and utilized to a certain extent, improving energy utilization efficiency and meeting actual process requirements.

[0004] The background technology of the aforementioned patents mentions that quenched workpieces need to be cooled for a certain period of time, and during this process, impurity particles will form on the surface of the workpiece due to cooling, or impurities will adhere to the workpiece during water quenching. These impurities require subsequent processing by personnel, which increases the processing steps and negatively impacts the overall economic efficiency of the process. The patent's solution is to use a combination of a heat treatment purification and recovery mechanism and a jet quenching mechanism to remove the quenching residue and contaminants adhering to the surface of the valve workpiece. This requires using a flame and a mixture of acetylene gas to treat the surface of the workpiece. However, acetylene gas is flammable and potentially dangerous, so strict adherence to safety regulations and operating standards is required during operation. This significantly reduces the safety and stability of the processing. Therefore, there is a need to invent a heat treatment method and equipment for high-pressure valve production. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a heat treatment method and equipment for high-pressure valve production, aiming to solve the problems of safety hazards and lack of processing stability in the heat treatment process of high-pressure valve surfaces in existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A heat treatment device for high-pressure valve production, comprising:

[0008] A suspension frame is suspended at a high position. From left to right, a cover body one and a cover body two are fixedly connected to the bottom side of the suspension frame. A stirring drum is provided on the side of the cover body one and the cover body two that are close to each other. A heating pipe is installed on the right side of the cover body one to heat the iron sand in the stirring drum. An output pipe is connected to the right side of the cover body two through a valve.

[0009] As a conical cylinder for holding iron sand and high-pressure valves, the conical cylinder is conical in shape. The inner wall of the conical cylinder is rotatably connected with multiple snap-fit ​​components. The multiple snap-fit ​​components are connected by a synchronizing component to rotate synchronously. A worm gear is rotatably connected to the rear side of the conical cylinder. The bottom side of the worm gear is connected to a motor through two meshing bevel gears to drive the worm gear to rotate and transmit the synchronizing component.

[0010] An outer cylinder has an inner cylinder fixedly connected inside it. The top output end of the inner cylinder is connected to a cover. An auger is rotatably connected inside the inner cylinder. A cavity for storing clean water is left between the inner and outer cylinders. A vertical groove is opened on the outer wall of the inner cylinder. A connecting pipe is fixedly connected to the outer wall of the outer cylinder. The input end of the connecting pipe is connected to the cavity through a water pump. A water outlet pipe is installed at the output end of the connecting pipe. The water outlet pipe is installed at the left end of the conical cylinder. The inner cylinder recovers iron sand in the conical cylinder through a double-pass pipe. The top of the auger is connected to a universal joint through two meshing bevel gears.

[0011] The worm gear is internally slidably connected to a shaped rod. The right side of the shaped rod is displaced by the pushing component. The left side of the shaped rod is fixedly connected to a spline shaft. The outer wall of the stirring drum is provided with a meshing component. The top end of the meshing component is connected to a universal joint, and the rear end of the meshing component is connected to the spline shaft through a pulley set.

[0012] Preferably, the stirring drum includes a rolling drum rotatably connected to one side of the cover body and the second cover body. A plurality of stirring blades are fixedly connected to the inner wall of the rolling drum. The stirring blades are spirally arranged on the inner wall of the rolling drum. A limiting rail is fixedly connected to the outer wall of the rolling drum. The limiting rail is slidably connected to the suspension frame.

[0013] Preferably, the synchronizing element includes a plurality of pulleys rotatably connected to the bottom end of the outer wall of the conical cylinder, the plurality of pulleys being connected to each other via the inner side of a belt, a gear fixedly connected to the top side of each pulley, a helical gear meshing with the side of the gear near the conical cylinder, the helical gear being fixedly connected to a snap-fit ​​device, and the worm gear meshing with the gear.

[0014] Preferably, the dual-pass pipe includes a branch pipe located on the bottom side of the conical cylinder, the top side of the branch pipe is fixedly connected to the bottom side of the conical cylinder through a shell, the inner wall of the shell is rotatably connected to an open circular plate, and the bottom side of the conical cylinder has two through holes.

[0015] Preferably, one of the output ends of the branch pipe is connected to the input end of the inner cylinder, and the other output end of the branch pipe is provided with a waste discharge pipe.

[0016] Preferably, the meshing assembly includes a gear ring fixedly connected to the middle of the outer wall of the rolling cylinder, a gear three meshing with the top side of the gear ring, the gear three being rotatably connected to the top of the suspension bracket, the left side of the gear three being connected to the right end of the universal joint, and a gear two meshing with the rear side of the gear ring.

[0017] Preferably, the pulley assembly includes two pulleys rotatably connected to the rear end of the suspension frame and a double-groove pulley. The double-groove pulley is located on the adjacent side of the two pulleys and the two pulleys and the double-groove pulley are connected by a belt.

[0018] Preferably, the bottom pulley two is located on the left side of the spline shaft, and a spline groove is provided on the right side of the bottom pulley two.

[0019] Preferably, the pushing assembly includes an electric push rod located on the right side of the irregular rod, the non-driving end of the electric push rod being connected to the stand, and the driving end of the electric push rod being rotatably connected to the right side of the irregular rod.

[0020] A heat treatment method for manufacturing high-pressure valves includes the following steps:

[0021] Step 1: First, heat the iron sand, which is used as abrasive, in the rotating drum to 200-300℃;

[0022] Step 2: Place the quenched workpiece in the conical cylinder, align the opening of the workpiece with the outer wall of the snap-fit ​​part, open the valve of the output pipe, and start the bevel gear one to pour the heated iron sand into the conical cylinder through the output pipe. The rotating workpiece comes into contact with the flowing high-temperature iron sand to heat treat the surface of the workpiece.

[0023] Step 3: The iron sand enters the inner cylinder through the double pipe, and then re-enters the mixing drum through the inner cylinder's conveyor, forming a circulation. The high-temperature iron sand heats the inner cylinder, and the residual heat is transferred to the clean water in the outer wall cavity of the inner cylinder, thus heating the clean water.

[0024] Step 4: After the workpiece surface is cleaned, close the valve of the output pipe. After the iron sand in the conical cylinder has flowed out, turn on the water pump to pour the heated water in the cavity into the conical cylinder to cool the workpiece. After cooling, remove the workpiece.

[0025] Working principle: First, iron sand, used as abrasive, is heated to 200-300℃ in the rolling drum. The quenched workpiece is placed in the conical cylinder, and the opening of the workpiece is aligned with the outer wall of the clamping part. The valve of the output pipe is opened, and the motor is started. When the spline shaft connected to the irregular rod is located in the spline groove on the second bottom pulley, it will drive the second bottom pulley to rotate synchronously. This rotation is transmitted to the second top pulley via a belt, causing the second gear connected to the second pulley to mesh with the gear ring connected to the rolling drum. The gear ring, which rotates together with the rolling drum, meshes with the third gear at the top, causing the third gear to rotate through the universal joint. The two meshing gears are engaged. The second bevel gear drives the auger to rotate, which in turn rotates the rolling drum, conveying the heated iron sand through spirally arranged stirring blades to the output pipe. The sand then flows into the conical cylinder. A worm gear driven by a motor meshes with the rear gear, causing it to rotate. Multiple pulleys connected by a belt rotate synchronously, causing these pulleys to mesh with helical gears connected to a clamping device. This, in turn, drives the clamping device to rotate the workpiece. The iron sand, after falling into the conical cylinder, flows along the inner wall and through the through-hole at the bottom of the left side of the conical cylinder, passing through a circular hole and entering the output end on the left side of the branch pipe. It then flows into the inner... Inside the drum, a rotating auger conveys iron sand upwards and returns it to the rotating drum, creating a circulating flow. The rotating workpiece contacts the flowing, high-temperature iron sand, heat-treating its surface. The iron sand passes through the through-hole on the left end, through the round hole, and enters the output end on the left side of the branch pipe. It then flows into the inner drum and is conveyed back into the mixing drum by the rotating auger inside, forming a cycle. The high-temperature iron sand heats the inner drum, transferring residual heat to the water in the outer wall cavity of the inner drum, thus heating the water. After the workpiece surface is cleaned, the valve on the output pipe is closed. Once the iron sand in the conical drum has drained, the perforated circular plate is rotated. Close the through hole, then stop the motor. The electric push rod pulls the shaped rod, and the splined shaft connected to the shaped rod disengages from the spline groove on the bottom pulley two. Stop the operation of the rolling drum and auger, and keep the snap-fit ​​to drive the rotation of the workpiece. Then turn on the water pump to pour the heated clean water in the cavity into the conical cylinder. The snap-fit ​​drives the workpiece to rotate, which accelerates the cooling of the workpiece and cleans the iron sand on the surface of the workpiece. After cooling is complete, rotate the perforated circular plate again so that the circular hole on the circular plate coincides with the through hole on the right end. The hot water passes through the circular hole through the through hole on the right end and enters the output end on the right side of the branch pipe. The wastewater is discharged through the waste pipe. Then the workpiece is taken out for subsequent production and processing.

[0026] This invention provides a heat treatment method and equipment for high-pressure valve manufacturing. It has the following beneficial effects:

[0027] 1. This invention uses high-temperature iron sand to polish the surface of the workpiece to remove the impurities remaining on the surface of the workpiece due to quenching. This heat treatment method can eliminate the need for flames and special gas assistance, thereby reducing the unstable factors caused by special gases and improving the safety and stability of the high-pressure valve production process.

[0028] 2. In this invention, both the iron sand used as abrasive and the cooling water can be recycled and reused. Furthermore, in the heat treatment process, the cooling water can be heated by circulating iron sand, thereby further reducing losses during the production process and lowering processing and production costs.

[0029] 3. This invention can integrate the equipment using a single motor drive, thereby maximizing the utilization of the single motor, and can independently stop the abrasive conveying structure to perform cooling without affecting the operation of other structures, thus improving the flexibility of the equipment. Attached Figure Description

[0030] Figure 1 This is a perspective view of the present invention;

[0031] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the rolling cylinder of the present invention;

[0033] Figure 4 This is a schematic diagram of the conical cylinder of the present invention;

[0034] Figure 5 for Figure 2 An enlarged schematic diagram of the structure at point A;

[0035] Figure 6 This is a schematic diagram of the worm gear structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of the second pulley and the double-groove pulley of the present invention;

[0037] Figure 8 This is a schematic diagram of the branch pipe structure of the present invention;

[0038] Figure 9 This is a schematic diagram of the universal joint structure of the present invention;

[0039] Figure 10 This is a schematic diagram of the inner cylinder of the present invention.

[0040] The components are as follows: 1. Suspension frame; 2. Conical cylinder; 3. Outer cylinder; 4. Rolling cylinder; 5. Stirring blades; 6. Cover body one; 7. Cover body two; 8. Output pipe; 9. Heating pipe; 10. Limiting rail; 11. Belt pulley one; 12. Gear one; 13. Helical gear; 14. Snap-fit ​​component; 15. Worm gear; 16. Motor; 17. Bevel gear one; 18. Irregular rod; 19. Electric push rod; 20. Splined shaft; 21. Spline groove; 22. Belt pulley two; 23. Double groove belt pulley; 24. Gear two; 25. Gear ring; 26. Branch pipe; 27. Housing; 28. Perforated circular plate; 29. ​​Inner cylinder; 30. Screwdriver; 31. Bevel gear two; 32. Universal shaft; 33. Gear three; 34. Connecting pipe; 35. Water outlet pipe. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0042] As one aspect of this application, an embodiment of the present invention provides a heat treatment apparatus for the production of high-pressure valves, comprising:

[0043] Please see the appendix Figure 1 - Appendix Figure 3 A suspension frame 1 is suspended at a high position. From left to right, a cover body 6 and a cover body 7 are fixedly connected to the bottom side of the suspension frame 1. A stirring drum is set on the side of the cover body 6 and the cover body 7. The stirring drum is mainly composed of a rolling drum 4 that is rotatably connected to the side of the cover body 6 and the cover body 7. Multiple stirring blades 5 are fixedly connected to the inner wall of the rolling drum 4 and spirally arranged on the inner wall of the rolling drum 4 so that when the stirring blades 5 stir the iron sand, the iron sand is transported in one direction. A limit rail 10 is fixedly connected to the outer wall of the rolling drum 4. The limit rail 10 is slidably connected to the suspension frame 1 to ensure the rotation stability of the rolling drum 4. A heating pipe 9 is installed on the right side of the cover body 6 to heat the iron sand in the stirring drum. An output pipe 8 is connected to the right side of the cover body 7 through a valve.

[0044] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5The conical cylinder 2, serving as a container for holding iron sand and high-pressure valves, is conical in shape to facilitate the flow of iron sand. Multiple snap-fit ​​pieces 14 are rotatably connected to the inner wall of the conical cylinder 2. These snap-fit ​​pieces 14 have a certain degree of elasticity and can be compressed to close, allowing them to pass through the opening of the high-pressure valve. The extended portions of the snap-fit ​​pieces 14 then lock the edge of the opening to secure the high-pressure valve. The multiple snap-fit ​​pieces 14 are connected by a synchronizing element for synchronous rotation. The synchronizing element consists of pulley 11, gear 12, and helical gear 13. The pulleys 11, rotatably connected to the bottom of the outer wall of the conical cylinder 2, are connected via the inner side of a belt. Gear 12... A helical gear 13 is fixedly connected to the top side of the pulley 11 and the gear 12 is meshed with the side of the conical cylinder 2. The helical gear 13 is fixedly connected to the snap fastener 14. A worm 15 is rotatably connected to the rear side of the conical cylinder 2. The worm 15 is meshed with the gear 12. The bottom side of the worm 15 is connected to a motor 16 through two meshing bevel gears 17 to drive the worm 15 to rotate and transmit the synchronous component. When one of the gears 12 connected to the pulley 11 rotates, the multiple pulleys 11 connected by the belt will rotate synchronously, so that the multiple gears 12 mesh synchronously with the helical gear 13 connected to the snap fastener 14, thereby driving the snap fastener 14 to drive the workpiece to rotate.

[0045] Please see the appendix Figure 1 Appendix Figure 9 and attached Figure 10 The outer cylinder 3 has an inner cylinder 29 fixedly connected inside it. The top output end of the inner cylinder 29 is connected to the cover 6. An auger 30 is rotatably connected inside the inner cylinder 29. A cavity for storing clean water is left between the inner cylinder 29 and the outer cylinder 3. A water inlet for filling the cavity is provided at the top of the outer cylinder 3. Vertical grooves are opened on the outer wall of the inner cylinder 29 to increase the contact area with the clean water, thereby transferring heat to the clean water more efficiently. The heated clean water is used to cool the workpiece to avoid the water temperature being too low. Excessive temperature difference in the workpiece causes cracking. To ensure the quality of the workpiece, a connecting pipe 34 is fixedly connected to the outer wall of the outer cylinder 3. The input end of the connecting pipe 34 is connected to the cavity through a water pump. The output end of the connecting pipe 34 is equipped with a water outlet pipe 35, which is installed at the left end of the conical cylinder 2. The inner cylinder 29 recovers the iron sand in the conical cylinder 2 through a double-pass pipe and sends the iron sand back to the rolling drum 4. The top of the auger 30 is connected to a universal shaft 32 through two meshing bevel gears 31.

[0046] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 8The dual-pipe system is mainly composed of a branch pipe 26 located at the bottom of the conical cylinder 2. It is divided into two output ends by a partition. The top side of the branch pipe 26 is fixedly connected to the bottom side of the conical cylinder 2 through the housing 27. The inner wall of the housing 27 is rotatably connected to an open circular plate 28. Two through holes are opened on the bottom side of the conical cylinder 2. One of the output ends of the branch pipe 26 is connected to the input end of the inner cylinder 29 to recover the iron sand flowing into the branch pipe 26 and send the iron sand into the inner cylinder 29. The other output end of the branch pipe 26 is equipped with a wastewater discharge pipe.

[0047] Specifically, the perforated circular plate 28 is provided with a force-applying part, and the shell 27 is provided with a sliding groove. When the force-applying part is pulled to slide inside the sliding groove, it will drive the perforated circular plate 28 to rotate, so that the position of the circular hole follows the rotation of the perforated circular plate 28 and is displaced, thus coinciding with either of the two through holes on the bottom side of the conical cylinder 2. When heat-treating the workpiece to remove impurities from the workpiece surface, the circular hole is located at the left end. Iron sand passes through the circular hole through the through hole at the left end and enters the output end on the left side of the branch pipe 26. It then flows into the inner cylinder 29. When using hot water to cool and clean the workpiece surface, the circular hole does not coincide with either of the circular holes. After the workpiece surface is cooled and cleaned with hot water, the circular hole is located at the right end. Hot water passes through the circular hole through the through hole at the right end and enters the output end on the right side of the branch pipe 26, and is discharged through the waste pipe.

[0048] Please see the appendix Figure 6 Appendix Figure 7 and attached Figure 9 A slidable worm gear 15 has a shaped rod 18 internally connected. The non-drive end of an electric push rod 19 located to the right of the shaped rod 18 is connected to the footrest. The drive end of the electric push rod 19 is rotatably connected to the right side of the shaped rod 18. The right side of the shaped rod 18 is displaced by the push of the drive end of the electric push rod 19. A spline shaft 20 is fixedly connected to the left side of the shaped rod 18. A gear ring 25 fixedly connected to the middle of the outer wall of the rolling cylinder 4 has a gear 33 meshing with its top side. The gear 33 is rotatably connected to the top of the suspension bracket 1. The left side of the gear 33 is connected to the right end of the universal joint 32. The gear ring 25... The rear side is meshed with a gear 24. The pulley group consists of two pulleys 22 and a double-groove pulley 23 rotatably connected to the rear end of the suspension frame 1. The double-groove pulley 23 is located on the side close to the two pulleys 22. The two pulleys 22 and the double-groove pulley 23 are connected by a belt. The bottom pulley 22 is located on the left side of the spline shaft 20, and a spline groove 21 is opened on the right side of the bottom pulley 22. The tooth specification of the inner wall of the spline groove 21 is higher than the tooth specification density on the outer wall of the spline shaft 20, so that the spline shaft 20 can be inserted into the spline groove 21 from multiple angles.

[0049] Specifically, the grooves on both sides of the double-groove pulley 23 are used to accommodate the two end faces of the belt, thereby guiding the shape of the belt body so that normal transmission is not affected when the transmission path is deviated. Because the cross-sectional shape of the irregular rod 18 is not circular, it can slide inside the worm gear 15 and rotate with the worm gear 15. When the irregular rod 18 is pushed to the left by the electric push rod 19, the spline shaft 20 connected to the irregular rod 18 will be inserted into the spline groove 21 on the bottom pulley 22, thereby driving the bottom pulley 22 to rotate synchronously. The rotation is then transmitted to the top pulley 22 via a belt, causing the gear 24 connected to the pulley 22 to mesh with the gear ring 25 connected to the rolling drum 4. The gear ring 25, which rotates together with the rolling drum 4, meshes with the top gear 33, causing the gear 33 to rotate two meshing bevel gears 31 through the universal joint 32. The bevel gears 31 then drive the auger 30 to rotate. If the spline shaft 20 is pulled out, the transmission stops, and the driven rolling drum 4 and auger 30 stop.

[0050] Based on the high-pressure valve production heat treatment equipment provided above, as another aspect of this application, a high-pressure valve production heat treatment method includes the following steps:

[0051] Step 1: First, heat the iron sand, which is used as abrasive, in the rotating drum 4 to 200-300℃;

[0052] Step 2: Place the quenched workpiece in the conical cylinder 2, align the opening of the workpiece with the outer wall of the snap-fit ​​part 14, open the valve of the output pipe 8, and start the motor 16 to pour the heated iron sand into the conical cylinder 2 through the output pipe 8. The rotating workpiece comes into contact with the flowing high-temperature iron sand to heat treat the surface of the workpiece.

[0053] Step 3: The iron sand enters the inner cylinder 29 through the double pipe, and then re-enters the stirring drum through the conveyor in the inner cylinder 29 to form a circulation. The high-temperature iron sand heats the inner cylinder 29, and the residual heat is transferred to the clean water in the outer wall cavity of the inner cylinder 29 to heat the water.

[0054] Step 4: After the workpiece surface is cleaned, close the valve of the output pipe 8. After the iron sand in the conical cylinder 2 has flowed out, turn on the water pump to pour the heated clean water in the cavity into the conical cylinder 2 to cool the workpiece. After cooling, take out the workpiece.

[0055] This method utilizes high-temperature iron sand to polish the surface of the workpiece, removing residual contaminants left after quenching. This heat treatment eliminates the need for flames and special gases, reducing instability caused by these gases and improving the safety and stability of the high-pressure valve production process. Both the iron sand and cooling water used as abrasives can be recycled and reused. Furthermore, the cooling water can be heated by circulating iron sand during the heat treatment process, further reducing losses and lowering production costs.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat treatment device for high-pressure valve production, characterized in that, include: A suspension frame (1) is suspended at a high position. From left to right, a cover body one (6) and a cover body two (7) are fixedly connected to the bottom side of the suspension frame (1). A stirring drum is provided on the side of the cover body one (6) and the cover body two (7). A heating pipe (9) is installed on the right side of the cover body one (6) to heat the iron sand in the stirring drum. An output pipe (8) is connected to the right side of the cover body two (7) through a valve. As a conical cylinder (2) for holding iron sand and high-pressure valves, the conical cylinder (2) is conical in shape. The inner wall of the conical cylinder (2) is rotatably connected with multiple snap-fit ​​pieces (14). The multiple snap-fit ​​pieces (14) are connected by a synchronizing piece to rotate synchronously. The rear side of the conical cylinder (2) is rotatably connected with a worm gear (15). The bottom side of the worm gear (15) is connected to a motor (16) through two meshing bevel gears (17) to drive the worm gear (15) to rotate and transmit the synchronizing piece. The outer cylinder (3) is fixedly connected to the inner cylinder (29). The top output end of the inner cylinder (29) is connected to the cover body (6). The inner cylinder (29) is rotatably connected to the inside of the inner cylinder (29). A cavity for storing clean water is left between the inner cylinder (29) and the outer cylinder (3). A vertical groove is opened on the outer wall of the inner cylinder (29). A connecting pipe (34) is fixedly connected to the outer wall of the outer cylinder (3). The input end of the connecting pipe (34) is connected to the cavity through a water pump. A water outlet pipe (35) is installed at the output end of the connecting pipe (34). The water outlet pipe (35) is installed at the left end of the conical cylinder (2). The inner cylinder (29) recovers the iron sand in the conical cylinder (2) through a double-pass pipe. The top of the auger (30) is connected to a universal shaft (32) through two meshing bevel gears (31). The worm (15) is internally slidably connected to a shaped rod (18). The right side of the shaped rod (18) is displaced by the pushing of the pushing component. The left side of the shaped rod (18) is fixedly connected to a spline shaft (20). The outer wall of the stirring drum is provided with a meshing component. The top end of the meshing component is connected to a universal shaft (32). The rear end of the meshing component is connected to the spline shaft (20) through a pulley set. The stirring cylinder includes a rolling cylinder (4) rotatably connected to the side of the first cover (6) and the second cover (7). Multiple stirring blades (5) are fixedly connected to the inner wall of the rolling cylinder (4). The stirring blades (5) are spirally arranged on the inner wall of the rolling cylinder (4). A limiting rail (10) is fixedly connected to the outer wall of the rolling cylinder (4). The limiting rail (10) is slidably connected to the suspension frame (1). The meshing assembly includes a gear ring (25) fixedly connected to the middle of the outer wall of the rolling cylinder (4). The top side of the gear ring (25) is meshed with a gear three (33). The gear three (33) is rotatably connected to the top of the suspension bracket (1). The left side of the gear three (33) is connected to the right end of the universal joint (32). The rear side of the gear ring (25) is meshed with a gear two (24). The pulley assembly includes two pulleys (22) and a double-groove pulley (23) rotatably connected to the rear end of the suspension frame (1). The double-groove pulley (23) is located on the same side of the two pulleys (22), and the two pulleys (22) and the double-groove pulley (23) are connected by a belt.

2. The high-pressure valve production heat treatment equipment according to claim 1, characterized in that, The synchronizing element includes multiple pulleys (11) rotatably connected to the bottom of the outer wall of the conical cylinder (2). The multiple pulleys (11) are connected to each other through the inner side of the belt. A gear (12) is fixedly connected to the top side of each pulley (11). A helical gear (13) is meshed with the side of the gear (12) near the conical cylinder (2). The helical gear (13) is fixedly connected to the snap-fit ​​member (14). The worm (15) is meshed with the gear (12).

3. The high-pressure valve production heat treatment equipment according to claim 1, characterized in that, The dual-pass pipe includes a branch pipe (26) located on the bottom side of the conical cylinder (2). The top side of the branch pipe (26) is fixedly connected to the bottom side of the conical cylinder (2) through a housing (27). The inner wall of the housing (27) is rotatably connected to an open circular plate (28). Two through holes are opened on the bottom side of the conical cylinder (2).

4. The high-pressure valve production heat treatment equipment according to claim 3, characterized in that, One of the output ends of the branch pipe (26) is connected to the input end of the inner cylinder (29), and the other output end of the branch pipe (26) is provided with a waste discharge pipe.

5. The high-pressure valve production heat treatment equipment according to claim 1, characterized in that, The bottom pulley 2 (22) is located to the left of the spline shaft (20), and a spline groove (21) is provided on the right side of the bottom pulley 2 (22).

6. The high-pressure valve production heat treatment equipment according to claim 1, characterized in that, The pushing assembly includes an electric push rod (19) located on the right side of the irregular rod (18). The non-driving end of the electric push rod (19) is connected to the stand, and the driving end of the electric push rod (19) is rotatably connected to the right side of the irregular rod (18).

7. A heat treatment method for high-pressure valve production, using the high-pressure valve production heat treatment equipment as described in any one of claims 1 to 6, characterized in that, Includes the following steps: Step 1: First, heat the iron sand, which is used as abrasive, in the rolling drum (4) to 200-300°C; Step 2: Place the quenched workpiece in the conical cylinder (2), align the opening of the workpiece with the outer wall of the snap fastener (14), open the valve of the output pipe (8), and start the motor (16) to pour the heated iron sand into the conical cylinder (2) through the output pipe (8). The rotating workpiece comes into contact with the flowing high-temperature iron sand to heat treat the surface of the workpiece. Step 3: The iron sand enters the inner cylinder (29) through the double pipe and re-enters the stirring drum through the inner cylinder (29) to form a circulation. The high-temperature iron sand heats the inner cylinder (29) and transfers the residual heat to the water in the outer wall cavity of the inner cylinder (29) to heat the water. Step 4: After the workpiece surface is cleaned, close the valve of the output pipe (8). After the iron sand in the conical cylinder (2) has flowed out, turn on the water pump and pour the heated water in the cavity into the conical cylinder (2) to cool the workpiece. After cooling, take out the workpiece.

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