Quenching press suitable for large bearing ring
By designing a quenching press suitable for large bearing rings, the problem of quenching ultra-large parts was solved by adopting horizontal movement and spraying quenching fluid, thereby improving hardness and strength as well as production efficiency.
Patent Information
- Application Number
- CN202423270511.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing technologies are insufficient to meet the quenching requirements of ultra-large bearings, gear rings, and other parts, especially in terms of improving hardness, strength, and production efficiency, and also present challenges in cold working.
A quenching press suitable for large bearing rings was designed, including a quenching base, a horizontal transfer mechanism, a pressing mechanism, a spraying mechanism, and a quenching liquid supply mechanism. The quenching operation is carried out by horizontal movement, downward pressing and shaping, and internal and external spraying of quenching liquid to avoid local deformation and improve the hardness and strength of the parts.
It achieves efficient quenching without the need for large quenching tanks and lifting devices, reducing costs and operational difficulty, and improving the quality of finished parts and production efficiency.
Smart Images
Figure CN223738068U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of workpiece heat treatment processing technology, and in particular to a quenching press suitable for large bearing rings. Background Technology
[0002] Large-scale bearings and gear rings are used in wind power, hydropower, and nuclear power industries. Due to their large size, while China's manufacturing industry has achieved a considerable scale, cold working techniques still fall short of practical application requirements. Improving the hardness and strength of these parts, reducing stress during operation, ensuring the precision and operational stability of equipment containing them, and increasing production efficiency have become pressing issues in this field. Therefore, a specialized large-scale form-limiting quenching equipment is needed to meet the quenching requirements of these parts during heat treatment. Utility Model Content
[0003] The technical problem to be solved by this technical solution is how to provide an ultra-large form-limiting quenching equipment specifically for large bearings, gear rings and other parts with large external dimensions, so as to meet the quenching operation requirements of such parts and improve the heat treatment processing quality and production efficiency of such parts.
[0004] To address the aforementioned technical problems, this technical solution provides a quenching press suitable for large bearing rings, comprising: a quenching base, a horizontal transfer mechanism, a pressing mold mechanism, a spraying mechanism, and a quenching fluid supply mechanism. The upper side of the quenching base is sequentially divided into a placement area and a quenching operation area from one side to the other. The horizontal transfer mechanism is located on the upper side of the quenching base to horizontally move the large bearing ring to be quenched, which is placed horizontally in the placement area, to the quenching operation area. The pressing mold mechanism and the spraying mechanism are both located in the quenching operation area. The quenching fluid supply mechanism is located beside the quenching base. A quenching mold is detachably mounted on the lower part of the pressing mold mechanism. The spraying mechanism has a quenching fluid spray hood. A perforated nozzle is provided on the horizontal transfer mechanism corresponding to the middle area of the large bearing ring. A quenching fluid storage area is recessed in the quenching operation area corresponding to the outer side of the large bearing ring. The quenching operation area is equipped with quenching liquid nozzles at the corresponding spray positions. The quenching liquid supply mechanism is connected to the quenching liquid spray hood and quenching liquid nozzles via supply pipelines. The quenching liquid supply mechanism is also connected to the quenching liquid storage tank via return pipelines. When the large bearing ring to be quenched is moved to the quenching operation area by the horizontal transfer mechanism, the pressure quenching mold is driven down and pressed onto the large bearing ring, applying pressure. The quenching liquid spray hood is driven to cover the outside of the large bearing ring. The quenching liquid supply mechanism supplies quenching liquid to the quenching liquid spray hood and quenching liquid nozzles via supply pipelines to spray quenching liquid onto the outer and inner circumferential surfaces of the large bearing ring. The quenching liquid storage tank collects the sprayed quenching liquid and returns it to the quenching liquid supply mechanism via return pipelines. After quenching, the large bearing ring is removed from the pressure quenching mold and quenching liquid spray hood and moved to the placement area via the horizontal transfer mechanism for unloading. Accordingly, the quenching press using this technical solution no longer needs to be equipped with large quenching tanks and quenching lifting devices. It only needs to move the heated large parts horizontally, press them down to limit their shape, and spray quenching liquid inside and outside to achieve the quenching operation. Moreover, the pressing down to limit the shape while spraying quenching liquid can effectively prevent local deformation of large parts during quenching and cooling, and can also help improve the transformation of the internal metallographic structure of large parts, thereby improving the hardness and strength of large parts and reducing the stress in application. This not only reduces the cost and operation difficulty of heat treatment of large parts, but also improves the finished product quality and production efficiency of large parts.
[0005] As another implementation of this technical solution, the horizontal transfer mechanism mainly consists of two strip-shaped mounting parts, two slide rails, several pulleys, a moving plate, a worktable, a rack, a drive motor, and gears. The two strip-shaped mounting parts are horizontally parallel to each other and spaced apart, and are fixedly installed on the upper side of the quenching base. One end of each strip-shaped mounting part is located in the placement area, and the other end is located in the quenching operation area. The two slide rails are horizontally fixed on the two opposite walls of the two strip-shaped mounting parts with sliding grooves facing each other. The several pulleys are evenly installed on both sides of the moving plate and are slidably embedded in the two slide rails. The worktable is fixedly installed on the moving plate. The rack is parallel to the slide rails and fixedly installed on the lower part of the moving plate. The drive motor is installed on the quenching base, and its drive end is fixedly installed with gears. The gears mesh with the rack. The moving plate and the worktable have nozzles that are aligned and communicate with each other in the area corresponding to the middle of the large bearing ring. Therefore, the moving plate can be driven by the drive motor to move the worktable back and forth between the placement area and the quenching operation area.
[0006] As another implementation of this technical solution, multiple buffer pads are respectively provided at corresponding positions on the lower side of the quenching operation zone and the moving plate. When the moving plate stops in the quenching operation zone, the buffer pads in the quenching operation zone and the buffer pads on the moving plate are in contact with each other, and the quenching liquid nozzles and spray nozzles are aligned with each other. Accordingly, the setting of buffer pads can effectively enhance the pressure-bearing capacity of the horizontal transfer mechanism during the pressing and shaping process of the pressure quenching die on the large bearing ring.
[0007] As another implementation of this technical solution, the movable plate and workbench are equipped with guide channels to guide the sprayed quenching liquid into the quenching liquid storage tank. This facilitates the recovery of the quenching liquid and prevents spillage.
[0008] As another implementation of this technical solution, the pressing mechanism mainly consists of several support columns, a lifting plate, a support plate, a first hydraulic cylinder, a second hydraulic cylinder, a pressure sensor, a mold connecting seat, a mold locking device, and a position detection switch. The support columns are vertically and evenly fixed in the quenching operation area and located outside the two slide rails. Each pair of opposite support columns on the outer sidewalls of the two slide rails has vertically fixed strip-shaped guide portions. The lifting plate is horizontally positioned, and its periphery has several groove-shaped guide portions corresponding to the strip-shaped guide portions of the support columns. The lifting plate, with its several groove-shaped guide portions, is movably mounted on the several strip-shaped guide portions and is movably connected to the support columns. Between the columns, a support plate is horizontally fixed to the upper end of the support columns. A first hydraulic cylinder is located on the upper part of the support plate with its drive extension end facing downward and is telescopically movable through the support plate and fixedly connected to the lifting plate. A second hydraulic cylinder is located on the lower part of the lifting plate with its drive extension end facing downward and connected to a pressure sensor. A mold connecting seat is installed below the pressure sensor. A mold locking device is installed on the mold connecting seat. A quenching mold is installed on the mold connecting seat and is fastened by the mold locking device. A position detection switch is installed on the cylinder body of the second hydraulic cylinder and detects the distance between it and the quenching mold through a touch rod. The first hydraulic cylinder and / or the second hydraulic cylinder drive the quenching mold to press down on the large bearing ring and apply pressure. Accordingly, the dual hydraulic cylinder configuration allows the quenching die to have a wider range of downward pressure to meet the quenching and shaping requirements of large parts of different sizes. The pressure sensor provides feedback on the pressure value, enabling precise control of the hydraulic system's operation. The position detection switch accurately detects the quenching die's position, facilitating the opening, closing, and operation of the hydraulic system.
[0009] As another implementation of this technical solution, the spraying mechanism mainly consists of two third hydraulic cylinders, a quenching liquid spray hood, and an annular sealing gasket. The two third hydraulic cylinders are spaced apart and symmetrically arranged on the upper part of the support plate. The drive extension end of the third hydraulic cylinder faces downward and is telescopically inserted through the support plate and the lifting plate, with the lower end of the drive extension end located below the lifting plate. The quenching liquid spray hood mainly consists of an inner cylinder and an outer cylinder arranged coaxially and vertically, a vertically arranged liquid receiving pipe, and a cylindrical sleeve. The upper and lower peripheries of the outer cylinder are respectively connected to the outer periphery of the inner cylinder to form a closed cylindrical liquid passage between the inner and outer cylinders. The upper and lower ends of the inner cylinder and the cylindrical sleeve are open openings. Multiple through holes communicating with the cylindrical liquid passage are evenly opened on the circumferential sidewall of the inner cylinder, and a sealing gasket is installed on the through holes. The nozzle and the liquid receiving pipe are located on the outside of the outer cylinder and connected to the outer cylinder through a transverse connecting pipe and communicate with the cylindrical liquid passage. The upper end of the liquid receiving pipe is closed and the lower end is an open port with an inner sealing ring gasket on the inner side of the port's edge. The liquid outlet of the outer ring of the liquid supply pipe faces upward and is aligned with the port. An outer sealing ring gasket is provided on the outer side of the outlet's edge. The upper end of the cylindrical sleeve is combined with the outer peripheral wall of the outer cylinder. The lower end of the drive extension end of the third hydraulic cylinder is fixedly connected to the upper end of the inner cylinder. The upper side of the moving plate has an annular groove corresponding to the lower end of the cylindrical sleeve. An annular sealing gasket is set in the annular groove. The quenching liquid spray hood is lowered or raised by the third hydraulic cylinder, which simultaneously aligns and connects or separates the port and the outlet, and allows the lower end of the cylindrical sleeve to be embedded in or detached from the annular groove. Accordingly, the quenching liquid spray hood, which is cylindrical in shape and has open openings at both the top and bottom, can be driven by the third hydraulic cylinder to fit a large bearing ring inside it. The pressure quenching mold can be lowered into the hood through the opening at the top to press and limit the shape of the large bearing ring. At the same time, the nozzles on the inner cylinder and the quenching liquid nozzles below the nozzles on the worktable can spray quenching liquid on the inner and outer sides of the large bearing ring, so that the quenching operation and the pressing and limiting can be carried out simultaneously.
[0010] As another implementation of this technical solution, the quenching fluid supply mechanism mainly consists of a storage tank, a pump, supply pipelines, and return pipelines. A storage space is formed beneath the ground near the quenching operation area in the production site. The storage tank and pump are located within this storage space. The supply pipelines include an inner ring and an outer ring, with their inlets extending through the storage space and connecting to the pump's outlet. Their outlets extend through the quenching base and connect to the quenching fluid nozzle and are aligned with the outlet, respectively. The pump's inlet is connected to the storage tank via a pipeline. The return pipeline extends through the quenching base and the storage space, connecting the quenching fluid temporary storage tank and the storage tank. Therefore, placing the storage tank and pump beneath the production site effectively reduces the space occupied, thereby saving operating costs.
[0011] As another implementation of this technical solution, the quenching press further includes a quenching isolation chamber, which is installed above the quenching operation area. The side wall of the quenching isolation chamber facing the placement area has a channel for a horizontal transfer mechanism to transfer large bearing rings, and a lifting door is installed at the channel. This isolates the quenching operation area from the external environment, preventing the high-temperature gases generated during quenching from adversely affecting the external environment.
[0012] As another implementation of this technical solution, the quenching press further includes a workpiece transfer robot positioned above the placement area. Accordingly, by using the workpiece transfer robot to handle large bearing rings, the automation level of the quenching press and the quenching processing efficiency can be improved.
[0013] As another implementation of this technical solution, the quenching press also includes a central control mechanism, which is electrically connected to the horizontal transfer mechanism, the pressing mold mechanism, the spraying mechanism, the quenching fluid supply mechanism, the lifting door, and the workpiece transfer robot. Accordingly, the automation level and quenching efficiency of the quenching press can be significantly improved. Attached Figure Description
[0014] Figure 1 This is an overall side sectional view of a quenching press suitable for large bearing rings according to the present invention.
[0015] Figure 2 This is a partial cross-sectional view of the quenching operation area in this utility model;
[0016] Figure 3 A cross-sectional view at an angle of a quenching press suitable for large bearing rings, for utility model purposes;
[0017] Figure 4 This is a partial cross-sectional view of the spraying mechanism in this utility model.
[0018] Explanation of symbols in the attached diagram:
[0019] 1. Quenching base; 11. Placement area; 12. Quenching operation area; 121. Quenching liquid storage tank; 122. Buffer pad; 2. Horizontal transfer mechanism; 21. Strip mounting part; 22. Slide rail; 23. Pulley; 24. Moving plate; 241. Annular groove; 25. Worktable; 26. Drive motor; 27. Buffer pad; 3. Pressing mechanism; 31. Support column; 311. Strip guide part; 32. Lifting plate; 321. Groove guide part; 33. Support plate; 34. First hydraulic cylinder; 35. Second hydraulic cylinder; 36. Pressure sensor; 37. Mold connecting seat; 38. Mold locking device; 39. Position detection switch; 4. Spraying mechanism; 41. Third hydraulic cylinder; 42. Quenching liquid spray hood; 421. Inner cylinder; 422. Outer cylinder; 423. Liquid receiving pipe; 4231. Inner sealing ring gasket; 424. 425 Cylindrical sleeve; 43 Cylindrical liquid passage; 5 Annular sealing gasket; 5 Quenching liquid supply mechanism; 51 Liquid storage tank; 52 Liquid pump; 53 Liquid supply pipeline; 531 Inner ring liquid supply pipeline; 532 Outer ring liquid supply pipeline; 5321 Outer sealing ring gasket; 54 Liquid return pipeline; 6 Quenching isolation box; 61 Lifting door; 7 Workpiece transfer robot; 8 Central control mechanism; A Large bearing ring. Detailed Implementation
[0020] The detailed description and technical content of this utility model are explained below with reference to the accompanying drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit this utility model.
[0021] In the context of this specification, any two or more embodiments of this utility model can be arbitrarily combined, and the resulting technical solutions are part of the original disclosure of this specification and also fall within the protection scope of this utility model.
[0022] like Figure 1The diagram shown illustrates a specific embodiment of a quenching press for large bearing rings according to this utility model. This quenching press (hereinafter referred to as the quenching press) includes a quenching base 1, a horizontal transfer mechanism 2, a pressing mechanism 3, a spraying mechanism 4, and a quenching fluid supply mechanism 5. The quenching base 1 is located on the ground of the production site, serving as the main support for other mechanisms and for the quenching operation of the workpiece. The upper side of the quenching base 1 is divided into a placement area 11 and a quenching operation area 12 from one side to the other. The horizontal transfer mechanism 2 is located on the upper side of the quenching base 1 to horizontally move the large workpiece to be quenched (hereinafter, large bearing ring A is used as an example) placed horizontally in the placement area 11 to the quenching operation area 12. The pressing mechanism 3 and the spraying mechanism 4 are both located in the quenching operation area 12, and the quenching fluid supply mechanism 5 is located beside the quenching base 1. The lower part of the pressing mechanism 3 is detachably equipped with a pressing quenching mold (not shown in the figure). This pressing quenching mold comes in various sizes and shapes, allowing for the replacement of a suitable mold to perform the pressure and shaping operation for different sizes and types of large bearing rings A to be quenched. The spraying mechanism 4 has a quenching liquid spray hood 42, the upper part of which has an opening (not shown in the figure) for the pressing quenching mold to move in and out of the quenching liquid spray hood 42. A hollowed-out nozzle (not shown in the figure) is provided on the horizontal transfer mechanism 2 corresponding to the middle area of the large bearing ring A. Combined with... Figure 2 As shown, a quenching liquid storage tank 121 is recessed in the area outside the large bearing ring A in the quenching operation area 12, and a quenching liquid nozzle (not shown) is also provided at the position of the nozzle in the quenching operation area 12. The quenching liquid supply mechanism 5 is connected to the quenching liquid spray hood 42 and the quenching liquid nozzle through the liquid supply pipeline 53, and the quenching liquid supply mechanism 5 is connected to the quenching liquid storage tank 121 through the liquid return pipeline 54. During the operation of the quenching press, when the large bearing ring A to be quenched is moved to the quenching operation area 12 by the horizontal transfer mechanism 2, the quenching mold is driven to press down on the large bearing ring A and apply pressure. The quenching liquid spray cover 42 is driven to cover the outside of the large bearing ring A. The quenching liquid supply mechanism 5 supplies quenching liquid to the quenching liquid spray cover 42 and the quenching liquid nozzle through the liquid supply pipeline 53 to spray the quenching liquid on the outer and inner circumferential surfaces of the large bearing ring A. The quenching liquid temporary storage tank 121 collects the sprayed quenching liquid and sends it back to the quenching liquid supply mechanism 5 through the return liquid pipeline 54. After the large bearing ring A completes the quenching operation, it is removed from the quenching mold (the quenching mold rises) and the quenching liquid spray cover 42 (the quenching liquid spray cover rises) and then moved to the placement area 11 by the horizontal transfer mechanism 2 for unloading.
[0023] To isolate the quenching operation area 12 from the external environment and prevent the high-temperature gases (quenching steam, etc.) generated during the quenching of the large bearing rings A from adversely affecting the external environment, another specific embodiment of the quenching press may include a quenching isolation box 6. This quenching isolation box 6 is positioned above the quenching operation area 12, and its side wall facing the placement area 11 has a channel opening (not shown) for the horizontal transfer mechanism 2 to transfer the large bearing rings A. A lifting door 61 is installed at the channel opening. The quenching isolation box 6 may be a rectangular box composed of multiple metal plates, and an exhaust device (not shown) may be installed on it to discharge the high-temperature gases generated inside. Furthermore, to facilitate the unloading of the large bearing rings A, a workpiece transfer robot 7 may be installed above the placement area 11. Using the workpiece transfer robot 7 to handle the large bearing rings A can improve the automation level of the quenching press and the quenching efficiency.
[0024] To further enhance the automation level and quenching efficiency of the quenching press, this invention may include a central control mechanism 8 in another specific embodiment. This central control mechanism 8 can be electrically connected to the horizontal transfer mechanism 2, the pressing mold mechanism 3, the spraying mechanism 4, the quenching fluid supply mechanism 5, the lifting door 61, and the workpiece transfer robot 7. This electrical connection includes both electrical and signal connections. Essentially, the central control mechanism 8 is electrically connected to the drive components and sensors (such as motors, drive cylinders, and pressure sensors) of each mechanism. The central control mechanism 8 in this invention can be a control console with instruction buttons, an automatic control unit composed of a programmable logic controller (PLC), a centralized control circuit, a centralized control system, or a host computer, or it can be integrated into the control system of the entire heat treatment production line. This invention does not limit the type of the central control mechanism. Currently, most existing workpiece heat treatment production lines have achieved automated control. Given that the current application of central control mechanisms to control the operation of various mechanisms or components according to input or pre-written instructions is a widely used and common control mode in the field of automation control, which is the existing control technology, the process of using a central control mechanism to control the operation of the above-mentioned mechanisms or components in this utility model will not be described in detail.
[0025] Specifically, combined Figure 3As shown, in the above-described specific embodiment of this utility model, the horizontal transfer mechanism 2 mainly consists of two strip-shaped mounting parts 21, two slide rails 22, several pulleys 23, a moving plate 24, a worktable 25, a rack (not shown in the figure), a drive motor 26, and gears (not shown in the figure). The two strip-shaped mounting parts 21 are horizontally aligned, parallel to each other, and spaced apart, and are fixedly mounted on the upper side of the quenching base 1. One end of each strip-shaped mounting part 21 is located in the placement area 11, and the other end is located in the quenching operation area 12. The two slide rails are horizontally fixed to the two opposite sides of the two strip-shaped mounting parts with opposing sliding grooves. On the wall, several pulleys 23 are evenly installed on both sides of the movable plate 24 and are slidably embedded in the grooves of the two slide rails 22. The worktable 25 is fixedly installed on the movable plate 24. The rack is parallel to the slide rail 22 and fixedly installed at the lower part of the movable plate 24. The drive motor 26 is installed on the quenching base 1 and a gear is fixedly installed on its drive end. The gear meshes with the rack. The movable plate 24 and the worktable 25 have nozzles that are aligned and communicate with each other in the area corresponding to the middle of the large bearing ring A. Driven by the drive motor 26, the movable plate 24 can drive the worktable 25 to move back and forth between the placement area 11 and the quenching operation area 12. In addition, multiple buffer pads 122 and 27 can be respectively provided at corresponding positions on the lower sides of the quenching operation area 12 and the moving plate 24. When the moving plate 24 stops at the quenching operation area 12, the buffer pads 122 and 27 of the quenching operation area 12 and the moving plate 24 are in contact with each other, and the quenching liquid nozzles and spray nozzles are aligned with each other. The setting of buffer pads 122 and 27 can effectively enhance the pressure-bearing capacity of the horizontal transfer mechanism 2 during the pressing and shaping process of the pressure quenching mold on the large bearing ring A. In addition, the moving plate 24 and the worktable 25 can also be provided with guide channels (not shown in the figure). The guide channels can guide the sprayed quenching liquid into the quenching liquid storage tank 121 to facilitate the recovery of quenching liquid and prevent the spillage of quenching liquid.
[0026] In the above-described specific embodiment of this utility model, the pressing mechanism 3 mainly consists of several support columns 31, a lifting plate 32, a support plate 33, a first hydraulic cylinder 34, a second hydraulic cylinder 35, a pressure sensor 36, a mold connecting seat 37, a mold locking device 38, and a position detection switch 39. The several support columns 31 are vertically and evenly fixedly arranged in the quenching operation area 12 and located outside the two slide rails 22. The lower ends of the support columns 31 can be fixedly connected to the strip-shaped mounting part 21, and the quenching... The sidewall of the isolation box 6 can be combined with the outer side of the support column 31 to enhance the structural strength of the quenching isolation box 6. Each of the two opposite support columns 31 on the outer side of the two slide rails 22 can be vertically fixed with strip-shaped guide portions 311. The lifting plate 32 is horizontally arranged, and its periphery has several groove-shaped guide portions 321 corresponding to the strip-shaped guide portions 311 of the support columns 31. The lifting plate 32, with its several groove-shaped guide portions 321, can be moved up and down and fitted onto the several strip-shaped guide portions 31. The upper part of the lifting plate 32 is connected to the several support columns 31 and can move up and down. The support plate 33 is fixedly set horizontally at the upper end of the several support columns 31. The top wall of the quenching isolation box 6 can also be combined with the support plate 33 to increase the structural strength. The first hydraulic cylinder 34 is set on the upper part of the support plate 33 with its driving extension end facing down and can extend and retract through the support plate 33 and is fixedly connected to the lifting plate 32. The second hydraulic cylinder 35 is set on the lower part of the lifting plate 32 with its driving extension end facing down and connected to the pressure sensor. 36. A mold connecting seat 37 is installed at the lower part of the pressure sensor 36. A mold locking device 38 is installed on the mold connecting seat 37. The quenching mold is installed on the mold connecting seat 37 and is fastened by the mold locking device 38. A position detection switch 39 is installed on the cylinder body of the second hydraulic cylinder 35 and detects the distance between it and the quenching mold through a touch lever (not shown in the figure). Thus, the first hydraulic cylinder 34 and / or the second hydraulic cylinder 35 drive the quenching mold to press down on the large bearing ring A and apply a pressure. This invention applies pressure to a large bearing ring A using a first hydraulic cylinder 34 and a second hydraulic cylinder 35, achieving a pressure range from 300 kg to 80,000 kg for press quenching. Furthermore, the hydraulic system can be controlled via feedback from a pressure sensor 36 to achieve very high pressure accuracy and minimal pressure fluctuation. For example, when a pressure below 1500 kg is required, the first hydraulic cylinder 34 descends to the mold height and stops, then the second hydraulic cylinder 35 extends, with feedback from the pressure sensor 36 controlling the output pressure of the second hydraulic cylinder 35. Conversely, when a pressure above 6000 kg is required, the second hydraulic cylinder 35 remains retracted, and the first hydraulic cylinder 34 descends directly to output pressure, with feedback from the pressure sensor 36 controlling the output pressure of the first hydraulic cylinder 34.Accordingly, the dual hydraulic cylinder configuration allows the quenching die to have a wider range of downward pressure to meet the quenching and shaping requirements of large parts of different sizes. The pressure sensor 36 provides feedback on the pressure value, enabling precise control of the hydraulic system's operation. The position detection switch 39 accurately detects the quenching die's operating position, facilitating the opening, closing, and operation of the hydraulic system.
[0027] Combination Figure 4As shown, in the above specific embodiment of this utility model, the spraying mechanism 4 mainly consists of two third hydraulic cylinders 41, a quenching liquid spray hood 42, and an annular sealing gasket 43. The two third hydraulic cylinders 41 are spaced apart and symmetrically arranged on the upper part of the support plate 33. The driving extension end of the third hydraulic cylinder 41 faces downward and is telescopically inserted through the support plate 33 and the lifting plate 32, with the lower end of the driving extension end located below the lifting plate 32. The quenching liquid spray hood 42 mainly consists of an inner cylinder 421 and an outer cylinder 422 arranged coaxially and vertically, a vertically arranged liquid receiving pipe 423, and a cylindrical sleeve portion 424. The outer cylinder 421... The upper and lower peripheries of part 2 are respectively connected to the outer peripheral wall of the inner cylinder 421 to form a closed cylindrical liquid passage 425 between the inner and outer cylinders 421 and 422. The upper and lower ends of the inner cylinder 421 and the cylindrical sleeve part 424 are open openings. The circumferential sidewall of the inner cylinder 421 is evenly provided with multiple through holes (not shown in the figure) communicating with the cylindrical liquid passage 425, and nozzles (not shown in the figure) are installed on the through holes. The liquid receiving pipe 423 is located outside the outer cylinder 422 and is connected to the outer cylinder 422 through a transverse connecting pipe and communicates with the cylindrical liquid passage 425. The upper end of the liquid receiving pipe 423 is closed and its lower end is open. An inner sealing ring gasket 4231 is provided on the inner side of the opening edge of the through-hole. The outlet of the outer ring liquid supply pipe 532 of the liquid supply pipe 53 faces upward and is aligned with the through-hole. An outer sealing ring gasket 5321 is provided on the outer side of the outlet edge. The upper end of the cylindrical sleeve part 424 is combined with the outer peripheral wall of the outer cylinder 422. The lower end of the drive extension end of the third hydraulic cylinder 41 is fixedly connected to the upper end of the inner cylinder 421. The upper side of the moving plate 24 is provided with an annular groove 241 corresponding to the lower end of the cylindrical sleeve part 424. An annular sealing gasket 43 is provided in the annular groove 241. The quenching liquid spray cover 42 is lowered or raised by the drive of the third hydraulic cylinder 41. Simultaneously, the inlet and outlet are aligned and connected or separated, and the lower end of the cylindrical sleeve 424 is embedded in or detached from the annular groove 241. Accordingly, the quenching liquid spray hood 42, which is cylindrical in shape and has open openings at both the upper and lower ends, can be fitted inside the large bearing ring A under the drive of the third hydraulic cylinder 41. The pressure quenching mold can descend into the interior of the quenching liquid spray hood 42 through the opening at the upper part to press and limit the shape of the large bearing ring A. At the same time, the nozzles on the inner cylinder 421 and the quenching liquid nozzles below the nozzles of the worktable 25 can spray quenching liquid on the inner and outer sides of the large bearing ring A, so that the quenching operation and the pressing and limiting are carried out at the same time.
[0028] In the above-described specific embodiment of this utility model, the quenching fluid supply mechanism 5 mainly consists of a storage tank 51, a pump 52, a supply pipeline 53, and a return pipeline 54. A storage space is formed below the ground near the quenching operation area 12 in the production site. The storage tank 51 and the pump 52 are located within the storage space. The supply pipeline 53 includes an inner ring supply pipeline 531 and an outer ring supply pipeline 532, with the inlets of both the inner and outer ring supply pipelines penetrating the storage space and connecting with the pump 54. The outlet of the liquid pump 52 is connected to the quenching base 1. The outlets of the inner ring liquid supply pipe 531 and the outer ring liquid supply pipe 532 are respectively connected to the quenching liquid nozzle and aligned with the inlet. The inlet of the liquid pump 52 is connected to the storage tank 51 through the pipe. The return pipe 54 passes through the quenching base 1 and the storage space and connects the quenching liquid temporary storage pool 121 and the storage tank 51. Accordingly, the storage tank 51 and the liquid pump 52 are set below the ground of the production site, which can effectively reduce the occupation of the production site and thus save operating costs.
[0029] In summary, the quenching press of this invention eliminates the need for large quenching tanks and quenching lifting devices. It only requires horizontal movement, downward pressure shaping, and internal and external spraying of quenching liquid on the heated large parts to achieve simultaneous quenching and downward pressure shaping. Simultaneous downward pressure shaping while spraying quenching liquid effectively prevents localized deformation of large parts during quenching and cooling and helps enhance the transformation of the internal metallographic structure, thereby increasing the hardness and strength of the large parts and reducing stress during application. This not only reduces the cost and operational difficulty of heat treatment for large parts but also improves the finished product quality and production efficiency.
[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the patent scope of the present utility model. Other equivalent changes made using the patent concept of the present utility model should all fall within the patent protection scope of the present utility model.
Claims
1. A quench press suitable for use with large bearing races, comprising: Quenching base and horizontal transfer mechanism, the upper side of the quenching base is divided into a placing area and a quenching operation area from one side to the other side, the horizontal transfer mechanism is arranged on the upper side of the quenching base to horizontally move the large bearing ring to be quenched in the annular surface to the quenching operation area, characterized in that the quenching press further comprises a die mechanism, a spraying mechanism and a quenching liquid supply mechanism, the die mechanism and the spraying mechanism are arranged in the quenching operation area, the quenching liquid supply mechanism is arranged beside the quenching base, the lower part of the die mechanism is detachably mounted with a quenching die, the spraying mechanism has a quenching liquid spraying cover, the horizontal transfer mechanism is provided with a hollow-shaped nozzle corresponding to the middle part of the large bearing ring, the quenching operation area is recessed to form a quenching liquid temporary storage pool corresponding to the area outside the large bearing ring, and the quenching operation area is further provided with a quenching liquid nozzle corresponding to the nozzle position, the quenching liquid supply mechanism is connected with the quenching liquid spraying cover and the quenching liquid nozzle through a liquid supply pipeline, the quenching liquid supply mechanism is connected with the quenching liquid temporary storage pool through a liquid return pipeline, when the large bearing ring to be quenched is moved to the quenching operation area by the horizontal transfer mechanism, the quenching die is driven to press on the large bearing ring and apply a pressure, the quenching liquid spraying cover is driven to cover the outside of the large bearing ring, the quenching liquid supply mechanism supplies quenching liquid to the quenching liquid spraying cover and the quenching liquid nozzle through the liquid supply pipeline to spray quenching liquid on the outer and inner circumferential surfaces of the large bearing ring, the quenching liquid temporary storage pool collects the sprayed quenching liquid and returns it to the quenching liquid supply mechanism through the liquid return pipeline, and the quenched large bearing ring is separated from the quenching die and the quenching liquid spraying cover and moved to the placing area through the horizontal transfer mechanism for discharging operation.
2. Quenching press according to claim 1, characterized in that The horizontal transfer mechanism is mainly composed of two strip-shaped mounting parts, two slide rails, a plurality of pulleys, a moving plate, a workbench, a rack, a driving motor and a gear, the two strip-shaped mounting parts are fixedly arranged on the upper side of the quenching base horizontally and parallel to each other with a distance, one end of the strip-shaped mounting part is located in the placing area, and the other end is located in the quenching operation area, the two slide rails are fixedly arranged on the opposite two wall surfaces of the two strip-shaped mounting parts with a sliding groove, the plurality of pulleys are uniformly arranged on the two sides of the moving plate and can be slidably embedded in the two slide rails, the workbench is fixedly arranged on the moving plate, the rack is fixedly arranged on the lower part of the moving plate parallel to the slide rail, the driving motor is arranged on the quenching base, and the driving end of the driving motor is fixedly arranged with the gear, the gear is engaged with the rack, and the moving plate and the workbench are provided with the nozzles corresponding to the middle part of the large bearing ring and aligned with each other.
3. The quench press of claim 2, wherein, The quenching operation area and the lower side of the moving plate are respectively provided with a plurality of buffer pads corresponding to each other, when the moving plate stops in the quenching operation area, the buffer pads of the quenching operation area and the buffer pads of the moving plate are in contact with each other, and the quenching liquid nozzle and the nozzle are in alignment with each other.
4. The quench press of claim 2 wherein, The moving plate and the workbench are provided with a flow guide channel to guide the sprayed quenching liquid into the quenching liquid temporary storage pool.
5. The quench press of claim 2 wherein, The mold pressing mechanism is mainly composed of a plurality of support columns, a lifting plate, a support plate, a first hydraulic cylinder, a second hydraulic cylinder, a pressure sensor, a mold connecting seat, a mold locking device and a position detection switch. The plurality of support columns are vertically and uniformly fixed on the quenching operation area and located outside the two slide rails. Each of the two opposite support columns on the opposite side walls of the two slide rails is vertically fixed with a strip-shaped guide part. The lifting plate is horizontally arranged and has a plurality of slot-shaped guide parts corresponding to the strip-shaped guide parts of the plurality of support columns. The lifting plate is movably connected between the plurality of support columns by sleeving the plurality of slot-shaped guide parts on the plurality of strip-shaped guide parts. The support plate is horizontally fixed on the upper end of the plurality of support columns. The first hydraulic cylinder is arranged on the upper part of the support plate and its driving telescopic end is downwardly and movably connected with the lifting plate. The second hydraulic cylinder is arranged on the lower part of the lifting plate and its driving telescopic end is downwardly connected with the pressure sensor. The mold connecting seat is arranged on the lower part of the pressure sensor. The mold locking device is arranged on the mold connecting seat. The quenching mold is arranged on the mold connecting seat and is fastened by the mold locking device. The position detection switch is arranged on the cylinder body of the second hydraulic cylinder and detects the distance between the quenching mold and the position detection switch through a touch rod. The quenching mold is pressed on the large bearing ring by driving the first hydraulic cylinder and / or the second hydraulic cylinder to apply a pressure.
6. The quench press of claim 5 wherein, The spraying mechanism is mainly composed of two third hydraulic cylinders, the quenching liquid spraying cover and an annular sealing ring. The two third hydraulic cylinders are symmetrically arranged on the upper part of the support plate, and the driving telescopic end of the third hydraulic cylinder is downwardly and telescopically movable through the support plate and the lifting plate, and the lower end of the driving telescopic end is below the lifting plate. The quenching liquid spraying cover is mainly composed of an inner cylinder and an outer cylinder which are coaxial and vertically sleeved, a liquid receiving pipe and a cylindrical sleeve part which are vertically arranged. The upper and lower peripheries of the outer cylinder are combined with the outer wall of the inner cylinder to form a closed cylindrical liquid passage between the inner and outer cylinders. The upper and lower ends of the inner cylinder and the cylindrical sleeve part are open. The circumferential side wall of the inner cylinder is uniformly provided with a plurality of through holes which are communicated with the cylindrical liquid passage and are provided with a spray head. The liquid receiving pipe is located outside the outer cylinder and is connected with the outer cylinder through a transverse connecting pipe and is communicated with the cylindrical liquid passage. The upper end of the liquid receiving pipe is closed, and the lower end is open and is provided with an inner sealing ring on the inner side of the opening. The outer ring of the liquid supply pipeline is upwardly provided with a liquid outlet which is arranged opposite to the opening. The outer side of the opening is provided with an outer sealing ring. The upper end of the cylindrical sleeve part is combined with the outer wall of the outer cylinder. The lower end of the driving telescopic end of the third hydraulic cylinder is fixedly connected with the upper end of the inner cylinder. The upper side of the moving plate is provided with an annular embedding groove corresponding to the lower end of the cylindrical sleeve part. The annular sealing ring is arranged in the annular embedding groove. The quenching liquid spraying cover is driven by the third hydraulic cylinder to be lowered or raised, so that the opening is connected or separated with the liquid outlet, and the lower end of the cylindrical sleeve part is embedded in or separated from the annular embedding groove.
7. The quench press of claim 6 wherein, The quenching liquid supply mechanism is mainly composed of a liquid storage tank, a liquid pump, a liquid supply pipeline and a liquid return pipeline. A storage space is formed below the ground near the quenching operation area in the production site. The liquid storage tank and the liquid pump are arranged in the storage space. The liquid supply pipeline includes an inner ring liquid supply pipeline and an outer ring liquid supply pipeline. The liquid inlet of the inner ring liquid supply pipeline and the outer ring liquid supply pipeline is arranged in the storage space and connected with the liquid outlet of the liquid pump. The liquid outlet of the inner ring liquid supply pipeline and the outer ring liquid supply pipeline is arranged in the quenching base and connected with the quenching liquid spray head and arranged opposite to the opening. The liquid inlet of the liquid pump is connected with the liquid storage tank through a pipeline. The liquid return pipeline is arranged through the quenching base and the storage space to communicate the quenching liquid temporary storage tank and the liquid storage tank.
8. The quench press of claim 1 wherein, Further comprising: A quenching isolation box is arranged on the upper part of the quenching operation area. A passage for the horizontal transfer mechanism to transfer the large bearing ring is arranged on the side wall of the quenching isolation box facing the placing area, and a lifting door is arranged on the passage.
9. Quenching press according to claim 8, characterized in that Further comprising: A workpiece transfer manipulator is arranged above the placing area.
10. The quench press of claim 9, wherein, Further comprising: A central control mechanism is electrically connected with the horizontal transfer mechanism, the pressing mechanism, the spraying mechanism, the quenching liquid supply mechanism, the lifting door and the workpiece transfer robot respectively.