High-strength bolt production heat treatment device

Abstract

This utility model discloses a heat treatment device for high-strength bolt production, including a liquid storage tank and a quenching pool. The liquid storage tank is divided into an inlet chamber and an outlet chamber. Through the coordinated arrangement of the inlet and outlet chambers and a submersible jet pump, debris from the quenching pool during quenching can be carried to a filter plate for filtration, thus preventing debris impurities from entering the returning coolant and affecting product quality. Through the coordinated arrangement of gears, racks, and a drive rack, the meshing of the drive rack and gears at the beginning and end of each quenching cycle drives a cleaning brush on the rack to move up and down, thereby cleaning the filter plate and further improving the filtration efficiency. Through the coordinated arrangement of a sealing plate and a pump, when it is necessary to collect filtered impurities, the sealing plate can be closed, and the pump can draw coolant to the inlet chamber, resulting in only a small amount of coolant between the connecting plate and the outlet chamber, facilitating cleaning.

Description

Technical Field

[0001] This utility model relates to the technical field of heat treatment equipment for high-strength bolt production, and in particular to a heat treatment equipment for high-strength bolt production. Background Technology

[0002] In the existing technology, when heat-treating high-strength bolts, they need to be cooled and then vibrated to remove oxides. However, when high-strength bolts are cooled, debris will detach from the surface. This debris will adhere to the surface of the high-strength bolts during the next cooling process, thus affecting the product quality of the high-strength bolts. Utility Model Content

[0003] Therefore, it is necessary to provide a heat treatment device for the production of high-strength bolts to address the technical problem of debris falling off during cooling and affecting product quality.

[0004] To achieve the above objectives, this utility model provides a heat treatment device for producing high-strength bolts, including a liquid storage tank and a quenching pool. The liquid storage tank is divided into an inlet chamber and an outlet chamber, both of which are connected to the quenching pool. A submersible flow promoter is installed in the inlet chamber. A connecting plate and a filter plate are installed in the quenching pool. A gear is rotatably installed in the quenching pool. A rack is slidably engaged in the quenching pool. The gear and rack are meshed together. A cleaning brush is installed on the rack and is slidably engaged in the quenching pool. A linear actuator is installed on the quenching pool. A receiving frame is installed at the output end of the linear actuator. A driving rack is installed on the receiving frame and meshes with the gear. Several sealing plates are hinged to the connecting plate and are configured to cooperate with the rack.

[0005] Preferably, the bottom of the quenching tank is provided with a through groove, and a storage box is slidably and sealed in the through groove. The through groove is located between the connecting plate and the filter plate.

[0006] Preferably, both ends of the cleaning brush are rotatably equipped with abutment wheels, which abut against the inner wall of the quenching tank.

[0007] Preferably, a pressure block is installed on the sealing plate, and an extension shaft is installed on the rack, with the pressure block and the extension shaft being configured to cooperate.

[0008] Preferably, both the pressure block and the bottom end of the extension shaft are provided with chamfers.

[0009] Preferably, both the rack and the drive rack are clearance-fitted with the inner wall of the quenching tank.

[0010] Compared with existing technologies, this technical solution has at least one of the following beneficial effects:

[0011] 1. By combining the inlet and outlet chambers with the submersible jet generator, the debris in the quenching pool during quenching can be carried to the filter plate for filtration, thereby preventing the return coolant from containing debris and impurities that could affect product quality.

[0012] 2. Through the coordinated arrangement of gears, racks, and drive racks, the meshing of the drive rack and gears at the beginning and end of each quenching process drives the cleaning brush on the rack to move up and down, thereby cleaning the filter screen and further improving the filtering effect of debris.

[0013] 3. By cooperating with the sealing plate and the pump, when it is necessary to collect and process filtered impurities, the sealing plate can be closed and the pump can draw the coolant to the inlet chamber, so that there will be only a small amount of coolant between the connecting plate and the outlet chamber, which is convenient for cleaning. Attached Figure Description

[0014] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0015] Figure 2 This is a perspective view of the interior of a quenching tank according to an embodiment of the present invention;

[0016] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is an embodiment of the present utility model. Figure 2 Enlarged view at point B in the middle;

[0018] Figure 5 This is an embodiment of the present utility model. Figure 2 Enlarged view at point C;

[0019] In the diagram, 1. Storage tank; 2. Quenching pool; 3. Inlet chamber; 4. Outlet chamber; 5. Connecting plate; 6. Filter plate; 7. Gear; 8. Rack; 9. Cleaning brush; 10. Linear actuator; 11. Receiving frame; 12. Drive rack; 13. Sealing plate; 14. Through groove; 15. Storage box; 16. Abutment wheel; 17. Pressure block; 18. Extension shaft; 19. Pump. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] Please see Figures 1 to 5 This application provides a heat treatment device for producing high-strength bolts, including a liquid storage tank 1 and a quenching pool 2. The liquid storage tank 1 is divided into an inlet chamber 3 and an outlet chamber 4, both of which are connected to both sides of the quenching pool 2. A submersible flow promoter is fixedly installed in the inlet chamber 3. The submersible flow promoter is existing technology and is used to drive the flow of coolant. A connecting plate 5 and a filter plate 6 are fixedly installed in the quenching pool 2. To facilitate the replacement of the filter plate 6, the filter plate 6 can also be installed in the quenching pool 2 using bolts or other fasteners. A gear 7 is rotatably installed in the quenching pool 2. A rack 8 is slidably engaged in the quenching pool 2. The gear 7 and the rack 8 are meshed together. A cleaning brush 9 is fixedly installed on the rack 8 and slidably engaged in the quenching pool 2. A linear actuator 10 is fixedly installed on the quenching pool 2. 0 can be an electric cylinder. The output end of the linear actuator 10 is fixedly mounted with a receiving frame 11. The receiving frame 11 can abut against the inner wall of the quenching tank 2, thereby reducing the impact of coolant and causing the receiving frame 11 to shake. The linear actuator 10 and the receiving frame 11 can also be movably installed through other existing snap-fit ​​structures. The linear actuator 10 only needs to drive the receiving frame 11 to move up and down. A drive rack 12 is fixedly mounted on the receiving frame 11. The drive rack 12 meshes with the gear 7. Several sealing plates 13 are hinged on the connecting plate 5. The sealing plates 13 are preferably made of lightweight and hard material. The sealing plates 13 are configured to cooperate with the rack 8. A pump 19 is fixedly mounted in the liquid outlet chamber 4. The pump 19 is existing technology and can draw coolant for transportation. The output end of the pump 19 is connected to the liquid inlet chamber 3. The submersible thruster, linear actuator 10, and pump 19 can all be connected to an external signal processor.

[0022] In this embodiment, the coolant in the storage tank 1 is transported from the inlet chamber 3 to the quenching tank 2 by a submersible thruster. After circulating once in the quenching tank 2, it is transported back to the outlet chamber 4, where it is balanced by the pump 19 in the outlet chamber 4. During cooling, the linear actuator 10 drives several workpieces in the receiving frame 11 to descend into the quenching tank 2 for quenching and cooling. During the descent, the drive rack 12 is always engaged with the gear 7, which drives the rack 8 and cleaning brush 9, which are always engaged with the gear 7 on the opposite side, to move upward. At this time, the submersible thruster pushes the coolant, which pushes open several sealing plates 13 on the connecting plate 5, allowing the coolant to flow normally to the filter plate 6 for filtration and recycling. After cooling is completed, the linear actuator 10 drives the receiving frame 11 to move upward again. At this time, the cleaning brush 9 is driven to brush the filter plate 6 downward, thereby removing impurities from the filter plate 6. The sealing plate 13 is lowered for easy use next time. When it descends, the submersible thruster and pump 19 stop working. Under the weight of the sealing plate 13 itself and the pressure of the rack 8, the sealing plate 13 can gradually reset, so that impurities will only be stored between the connecting plate 5 and the filter plate 6. When a lot of impurities accumulate, the pump 19, which is in the off state, is activated after the cleaning brush 9 descends, so that the coolant in the outlet chamber 4 is reduced, thereby reducing the coolant between the connecting plate 5 and the filter plate 6, making it easier to collect and process the impurities. After the sealing plate 13 is reset, it can be completely sealed with the connecting plate 5 or only a very small amount of coolant can flow through it, as long as it does not affect the collection and processing of impurities.

[0023] In some embodiments, to facilitate the collection and treatment of impurities, a through groove 14 is provided at the bottom of the quenching pool 2. A storage box 15 is slidably and sealed within the through groove 14, which is located between the connecting plate 5 and the filter plate 6. The storage box 15 can be slidably and sealed within the through groove 14 using existing technologies such as sealing gaskets. When cleaning impurities, after most of the coolant is drained, the storage box 15 can be pulled out to clean the accumulated impurities. A portion of the coolant mixed with impurities will be discharged during the cleaning process, which is within acceptable limits. The storage box 15 can be movably installed in the quenching pool 2 using bolts or other fasteners, achieving stable installation within the through groove 14.

[0024] In some embodiments, to improve the stability of the rack 8 and the cleaning brush 9 when they move up and down, both ends of the cleaning brush 9 are provided with abutment wheels 16, which abut against the inner wall of the quenching pool 2.

[0025] In some embodiments, in order to facilitate the rack 8 to squeeze the sealing plate 13 and reset it, a pressure block 17 is fixedly installed on the sealing plate 13, and an extension shaft 18 is installed on the rack 8. The pressure block 17 and the extension shaft 18 are configured to cooperate with each other.

[0026] In some embodiments, to further facilitate the rack 8 in pressing the sealing plate 13 and resetting it, both the pressure block 17 and the bottom end of the extension shaft 18 are provided with chamfers. The chamfers are fitted together.

[0027] In some embodiments, to prevent impurities from entering the rack 8 and drive rack 12 and affecting their meshing connection with the gear 7, both rack 8 and drive rack 12 are configured to have a clearance fit with the inner wall of the quenching pool 2. A clearance fit or sliding seal connection is sufficient to prevent impurities from entering. The bottoms of rack 8 and drive rack 12 also have a clearance fit with the quenching pool 2, and the gear 7 is located at a higher position, preventing contact with the coolant.

[0028] The fixed connection and rotating installation in the above embodiments can all be achieved by welding, screw fasteners and other forms in the prior art, and the rotating installation can be achieved by bearings, circular rotating blocks and circular grooves. All of the above components are standard parts, and those that are not standard parts can also be specially customized, so the inventor will not elaborate further.

[0029] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0030] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A heat treatment apparatus for producing high-strength bolts, comprising a liquid storage tank (1) and a quenching pool (2), characterized in that, The liquid storage tank (1) is divided into an inlet chamber (3) and an outlet chamber (4). Both the inlet chamber (3) and the outlet chamber (4) are connected to the quenching pool (2). A submersible flow promoter is installed in the inlet chamber (3). A connecting plate (5) and a filter plate (6) are installed in the quenching pool (2). A gear (7) is rotatably installed in the quenching pool (2). A rack (8) is slidably engaged in the quenching pool (2). The gear (7) meshes with the rack (8). A cleaning brush (9) is installed on the rack (8). The cleaning brush (9) is slidably engaged in the rack (8). A linear actuator (10) is installed in the quenching pool (2). A receiving frame (11) is installed at the output end of the linear actuator (10). A drive rack (12) is installed on the receiving frame (11). The drive rack (12) meshes with the gear (7). Several sealing plates (13) are hinged on the connecting plate (5). The sealing plates (13) are matched with the rack (8). A pump (19) is installed in the liquid outlet chamber (4). The output end of the pump (19) is connected to the liquid inlet chamber (3).

2. The heat treatment apparatus for producing high-strength bolts according to claim 1, characterized in that, The bottom of the quenching pool (2) is provided with a through groove (14), and a storage box (15) is slidably and sealed in the through groove (14). The through groove (14) is located between the connecting plate (5) and the filter plate (6).

3. The heat treatment apparatus for producing high-strength bolts according to claim 1, characterized in that, Both ends of the cleaning brush (9) are rotatably equipped with abutment wheels (16), which abut against the inner wall of the quenching pool (2).

4. The heat treatment apparatus for producing high-strength bolts according to claim 1, characterized in that, A pressure block (17) is installed on the sealing plate (13), and an extension shaft (18) is installed on the rack (8). The pressure block (17) and the extension shaft (18) are configured to cooperate.

5. The heat treatment apparatus for producing high-strength bolts according to claim 4, characterized in that, Both the pressure block (17) and the bottom end of the extension shaft (18) are chamfered.

6. The heat treatment apparatus for producing high-strength bolts according to claim 1, characterized in that, Both the rack (8) and the drive rack (12) are fitted with the inner wall of the quenching pool (2) with clearance.

Images