Heat treatment mixing system

Abstract

The present invention discloses a heat treatment stirring system, which has a mobile driving mechanism that can drive a stirring mechanism to move in a racetrack-shaped ring in a quenching tank. In addition, the stirring mechanism has an inner stirring blade that revolves and an outer stirring blade that rotates and revolves at the same time. When the mobile driving mechanism set in the present application is in operation, the rectangular frame moves in a racetrack shape in the rectangular hole of the sliding frame driven by the driving motor, thereby driving the stirring mechanism to move horizontally in the quenching tank and adjust the height in the vertical direction, thereby increasing the stirring area and providing a height switch of the stirring area, greatly improving the uniformity of stirring, and facilitating the rapid cooling of the quenching zone; in addition, the stirring mechanism has an inner stirring blade that revolves and an outer stirring blade that rotates and revolves at the same time. The two sets of stirring blades can realize multi-dimensional stirring, provide multi-directional water flow, and improve the efficiency of heat exchange.

Description

Technical Field

[0001] The invention relates to a stirring system for quenching, in particular to a stirring system for heat treatment. Background Art

[0002] When quenching metal, quenching liquid is first added into the quenching pool, and then the workpiece is placed into the quenching pool for quenching to improve the performance of the metal.

[0003] During the quenching process, the temperature in the quenching pool will generally rise after the metal is added, causing the quenching temperature to deviate from the preset temperature. Therefore, the quenching area needs to be stirred during the quenching process to reduce the temperature of the quenching area. When a rapid quenching loader and unloader is used as a water entry tool, the quenching pool is generally made into a full-length type with a large amount of water. At this time, if the water pool stirring system adopts a conventional fixed propeller system, if it meets the stirring of the entire water pool, it is necessary to install a lot of agitators, which requires a large investment and complex control.

[0004] In response to the above problems, the patent application number 202011609153.8 discloses a mobile stirring system for a quenching pool, including a water pool assembly, including a water pool body, a slide rail installed on the side wall of the water pool body, and a discharging machine trolley beam arranged on the top surface of the water pool body, a stirring assembly, an electrified installation assembly, a latch telescopic assembly, an electrified drive assembly, an electrified assembly, a head connection assembly, and a latch assembly. The present invention realizes automatic connection to form a whole through the provided latch structure and the electrified structure, and drives the stirring structure to move horizontally under the action of the discharging machine, thereby simplifying the control system, concentrating the number of stirring pumps, increasing the flow rate in the stirring area, strengthening the flushing of the quenching workpiece, accelerating the effective heat exchange of the water flow, and reducing the water temperature in the stirring area. In this way, no matter which station the discharging machine is processing, the material can be put into the stirring area without installing the stirring system in the entire water pool.

[0005] The above patent drives the stirring assembly to move in the quenching pool by setting a movable beam and a track, thereby expanding the stirring area. However, it is found in actual application that the beam of this structure is set above the quenching pool, which will affect the placement and removal of the quenching workpiece. In addition, the above patent cannot switch the height during the movement, resulting in a significant reduction in the stirring effect. Finally, the direction of the stirring blade is too fixed and cannot form a multi-directional water flow, which leads to slow heat exchange of the quenching liquid. Summary of the invention

[0006] Based on the disadvantages that in the prior art, a beam is arranged above the quenching pool, which will affect the placement and removal of the quenching workpieces. Secondly, the height cannot be switched during the movement, which greatly reduces the stirring effect. In addition, the direction of the stirring blades is too fixed and multi-directional water flow cannot be formed, which leads to slow heat exchange of the quenching liquid. The present invention provides a heat treatment stirring system.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: a heat treatment stirring system, comprising:

[0008] A quenching tank having a concave cavity in which a quenching liquid is disposed;

[0009] A mobile driving mechanism, comprising a driving motor arranged on the outer wall of the quenching pool and a sliding frame arranged on the outer wall of the quenching pool for horizontal sliding, a rectangular hole in the middle of the sliding frame, a rectangular frame arranged in the rectangular hole, a width of the rectangular frame being the same as that of the rectangular hole, a height of the rectangular frame being less than a height of the rectangular frame hole, a runway-shaped hole being opened in the rectangular frame and a driving tooth being arranged on the side wall of the runway-shaped hole, a driving gear being arranged on the output shaft of the driving motor, the driving gear being meshed with the driving tooth, and an extension frame penetrating through the top of the rectangular frame being arranged on the top of the rectangular frame;

[0010] The transmission mechanism comprises a mounting frame having one end connected to the extension frame and the other end extending into the concave cavity, a transmission motor arranged at the outer end of the mounting frame, and a multi-stage transmission shaft arranged in the mounting frame, wherein the transmission motor is transmission-connected to the input end of the multi-stage transmission shaft;

[0011] A stirring mechanism, which is arranged at the inner end of the mounting frame and connected to the output end of the multi-stage transmission shaft;

[0012] The controller is connected with the heating device and the driving mechanism to control the operation of the two.

[0013] Preferably, the stirring mechanism includes a stirring shaft, a first bevel gear arranged on the stirring shaft, an inner sleeve ring arranged on the stirring shaft, an inner stirring blade arranged on the inner sleeve ring, an outer sleeve ring arranged on the outer end of the inner stirring blade, and an outer stirring blade arranged on the outer sleeve ring and rotated by a rotating shaft. The stirring shaft is transmission-connected to the output end of the multi-stage transmission shaft, and a second bevel gear is arranged at the inner end of the rotating shaft. The second bevel gear is meshed with the first bevel gear so that the outer stirring blade rotates on its own under the drive of the first bevel gear while following the revolution of the outer sleeve ring.

[0014] like Figure 2 As shown, a retaining block is also provided on the outer wall of the quenching pool. The retaining block is a runway-shaped structure. A roller is provided on the extension frame. When the rectangular frame and the sliding frame move, the roller always moves close to the retaining block.

[0015] Preferably, a plurality of thermocouples are provided in the quenching pool, the thermocouples are distributed in a matrix on the inner wall of the quenching pool, and each thermocouple is connected to a controller.

[0016] Preferably, a position detection mechanism for detecting the position of the sliding frame is provided between the sliding frame and the side wall of the quenching tank, and the position detection mechanism is connected to the controller.

[0017] Preferably, the position detection mechanism is an angle sensor, and the angle sensor and the output shaft of the drive motor are transmitted through a group of meshing gears; the position detection mechanism includes a plurality of slotted optical couplers arranged on the outer wall of the quenching pool, and a sensing head sliding over the slotted optical couplers is provided on the sliding frame, and the slotted optical couplers are connected to the controller; the position detection mechanism includes a magnet and a plurality of Hall sensors, and the magnet is arranged on the extension frame, and the Hall sensors are arranged in a circle at equal intervals along the motion trajectory of the extension frame, and each Hall sensor is connected to the controller.

[0018] Preferably, the multi-stage transmission shaft includes a first-stage transmission shaft connected to the transmission motor and a second-stage transmission shaft connected to the first-stage transmission shaft, the first-stage transmission shaft is vertically arranged and a first bevel gear is provided at the bottom, the second-stage transmission shaft is left-right arranged and a second bevel gear and a third bevel gear are provided at both ends, a fourth bevel gear is provided on the stirring shaft, the first bevel gear is meshed with the second bevel gear, the third bevel gear is meshed with the fourth bevel gear, and a hollow sleeve for installing the stirring shaft is provided on the mounting frame.

[0019] Preferably, a mounting cavity is provided in the mounting frame, a plurality of bearings are provided in the mounting cavity, transmission shafts of various levels are arranged in the mounting cavity and supported by the bearings, and the hollow sleeve is provided with a plurality of bearings for supporting the stirring shaft.

[0020] Preferably, the left and right walls of the quenching pool are each provided with a set of mobile drive mechanisms, and at least one set of transmission mechanisms and one set of stirring mechanisms are provided on the extension frame of each mobile drive mechanism. The transmission mechanisms on both sides are close to the side walls and bottom walls of the cavity to leave a quenching zone for quenching in the middle of the cavity.

[0021] Preferably, mounting seats are provided on the left and right walls of the quenching pool, and sliding rods passing through the mounting seats are provided at both ends of the sliding frame. The driving motor is fixed to the left and right walls of the quenching pool through the motor seat and its output shaft extends into the rectangular frame.

[0022] Compared with the prior art, the advantages of the present invention are as follows: when the mobile drive mechanism set in the present application is in operation, the rectangular frame moves in a track shape in the rectangular hole of the sliding frame driven by the driving motor, thereby driving the stirring mechanism to move horizontally in the quenching pool and adjust the height in the vertical direction, thereby increasing the stirring area and providing height switching of the stirring area, greatly improving the uniformity of stirring, and facilitating the rapid cooling of the quenching zone; in addition, the stirring mechanism has an inner stirring blade that revolves and an outer stirring blade that rotates and revolves simultaneously. The two sets of stirring blades can realize multi-dimensional stirring, provide multi-directional water flow, and improve the efficiency of heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0024] Figure 1 A perspective view of the present application;

[0025] Figure 2 An exploded view of this application;

[0026] Figure 3 It is a three-dimensional image at the rectangular frame;

[0027] Figure 4 is a three-dimensional diagram of the mounting frame;

[0028] Figure 5 It is a three-dimensional diagram of the transmission part;

[0029] Figure 6 is a three-dimensional diagram of the stirring mechanism;

[0030] Figure 7 is a three-dimensional diagram of the stirring mechanism;

[0031] In the figure: 10, quenching pool; 101, concave cavity; 20, mobile drive mechanism; 200, holding block; 201, sliding frame; 202, sliding rod; 203, rectangular frame; 2031, driving tooth; 204, extension frame; 205, mounting seat; 206, driving motor; 207, driving gear; 208, roller; 30, transmission mechanism; 301, mounting frame; 302, first stage transmission shaft; 303, second stage transmission shaft; 304, first bevel gear; 305, second bevel gear; 306, third bevel gear; 307, fourth bevel gear; 308, transmission motor; 40, stirring mechanism; 401, stirring shaft; 402, inner sleeve ring; 403, inner stirring blade; 404, outer sleeve ring; 405, first bevel gear; 406, outer stirring blade; 407, shaft; 408, second bevel gear. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0033] Example 1

[0034] Heat treatment mixing system, such as Figure 1-7 As shown, including:

[0035] The quenching tank 10 has a cavity 101 in which a quenching liquid is arranged;

[0036] The mobile driving mechanism 20 includes a driving motor 206 disposed on the outer wall of the quenching tank 10 and a sliding frame 201 horizontally slidingly disposed on the outer wall of the quenching tank 10, wherein the sliding frame 201 has a rectangular hole in the middle, a rectangular frame 203 is disposed in the rectangular hole, the width of the rectangular frame 203 is the same as the width of the rectangular hole, the height of the rectangular frame 203 is less than the height of the hole of the rectangular frame 203, a racetrack-shaped hole is opened in the rectangular frame 203, and a driving tooth 2031 is disposed on the side wall of the racetrack-shaped hole, a driving gear 207 is disposed on the output shaft of the driving motor 206, the driving gear 207 is meshed with the driving tooth 2031, and an extension frame 204 penetrating the top of the rectangular frame 203 is disposed on the top of the rectangular frame 203;

[0037] The transmission mechanism includes a mounting frame 301 having one end connected to the extension frame 204 and the other end extending into the concave cavity 101, a transmission motor 308 disposed at the outer end of the mounting frame 301, and a multi-stage transmission shaft disposed in the mounting frame 301, wherein the transmission motor 308 is transmission-connected to the input end of the multi-stage transmission shaft;

[0038] A stirring mechanism 40, which is disposed at the inner end of the mounting frame 301 and connected to the output end of the multi-stage transmission shaft;

[0039] The controller is connected with the heating device and the driving mechanism to control the operation of both. In this solution, the driving motor 206 drives the rectangular frame 203 to move. The moving trajectory of the rectangular frame 203 is limited by the racetrack-shaped hole and the driving teeth 2031 and is in the shape of a racetrack. At the same time, the moving frame only moves in the horizontal direction during the movement and limits the rectangular frame 203 to ensure that the rectangular frame 203 is always located in the rectangular hole. This structure makes the movement trajectory of the rectangular frame 203 and the extension frame 204 thereon in the shape of a racetrack, so that the movement trajectory of the transmission mechanism on the extension frame 204 and the stirring mechanism 40 in the quenching pool 10 is also in the shape of a racetrack, and finally the stirring mechanism 40 is stirred in a racetrack-shaped annular area, which increases the three-dimensionality of the stirring. In addition, in the actual stirring process, the stirring area can be controlled to perform a complete racetrack-shaped trajectory by the rotation of the driving motor 206, or only a part of the entire racetrack-shaped trajectory can be performed, such as moving back and forth in a certain section of the quenching area.

[0040] When the mobile driving mechanism 20 provided in the present scheme is in operation, the rectangular frame 203 moves in a track-shaped trajectory in the rectangular hole of the sliding frame 201 driven by the driving motor 206, thereby driving the stirring mechanism 40 to move horizontally and adjust the height in the vertical direction in the quenching pool 10, thereby increasing the stirring area and providing height switching of the stirring area, greatly improving the uniformity of stirring, and facilitating rapid cooling of the quenching zone.

[0041] Preferably, the stirring mechanism 40 includes a stirring shaft 401, a first bevel gear 405 arranged on the stirring shaft 401, an inner ring 402 arranged on the stirring shaft 401, an inner stirring blade 403 arranged on the inner ring 402, an outer ring 404 arranged on the outer end of the inner stirring blade 403, and an outer stirring blade 406 arranged on the outer ring 404 through a rotating shaft. The stirring shaft 401 is transmission-connected to the output end of the multi-stage transmission shaft, and a second bevel gear 408 is provided at the inner end of the rotating shaft. The second bevel gear 408 is meshed with the first bevel gear 405 so that the outer stirring blade 406 rotates on its own while following the revolution of the outer ring 404. In this solution, when the stirring shaft 401 rotates, the inner sleeve ring 402 rotates, the inner stirring blade 403 on the inner sleeve ring 402 rotates accordingly, and the outer sleeve ring 404 on the inner stirring blade 403 rotates accordingly, thereby driving the outer stirring blade 406 to revolve, and the shaft 407 of the outer stirring blade 406 rotates under the action of the first bevel gear 405 and the second bevel gear 408, thereby forming a multi-directional water flow at the outer stirring blade 406, which is beneficial to speeding up the heat exchange rate.

[0042] Preferably, a retaining block 200 is further provided on the outer wall of the quenching tank 10. The retaining block 200 is a runway-shaped structure. A roller 208 is provided on the extension frame 204. When the rectangular frame 203 and the sliding frame 201 move, the roller 208 always moves against the retaining block 200. The retaining block 200 is used for the roller 208 to abut against, and it provides a certain support and limiting effect to maintain the stability of the extension frame 204.

[0043] Preferably, a plurality of thermocouples are provided in the quenching pool 10, and the thermocouples are distributed in a matrix on the inner wall of the quenching pool 10, and each thermocouple is connected to a controller. The thermocouples are used to detect the temperature of the quenching liquid in each area, and feed the temperature back to the controller, which controls the drive motor 206 and the transmission motor 308 after analysis. The controller controls the drive motor 206 mainly to adjust the walking track and the walking speed along the track, and the controller controls the transmission motor 308 mainly to control its rotation speed and thus control the stirring speed of the stirring mechanism 40.

[0044] Preferably, a position detection mechanism for detecting the position of the rectangular frame 203 is provided between the sliding frame 201 and the side wall of the quenching tank 10, and the position detection mechanism is connected to the controller. The position detection mechanism is used to detect the position of the rectangular frame 203, thereby obtaining the position of the rectangular frame 203. After the position information is obtained, the position of the stirring mechanism 40 can be indirectly obtained, so that the stirring mechanism 40 can be adjusted to the area where stirring is required for stirring.

[0045] Preferably, the position detection mechanism is an angle sensor, and the angle sensor and the output shaft of the drive motor 206 are transmitted through a group of meshing gears; the position detection mechanism includes a plurality of slotted optical couplers arranged on the outer wall of the quenching pool 10, and the sliding frame 201 is provided with a sensing head that slides over the slotted optical coupler, and the slotted optical coupler is connected to the controller; the position detection mechanism includes a magnet and a plurality of Hall sensors, and the magnet is arranged on the extension frame 204, and the Hall sensors are arranged in a circle at equal intervals along the motion trajectory of the extension frame 204, and each Hall sensor is connected to the controller.

[0046] like Figure 4-5 As shown, the multi-stage transmission shaft includes a first-stage transmission shaft 302 connected to a transmission motor 308 and a second-stage transmission shaft 303 connected to the first-stage transmission shaft 302, the first-stage transmission shaft 302 is vertically arranged and a first bevel gear 304 is provided at its bottom, the second-stage transmission shaft 303 is left-right arranged and a second bevel gear 305 and a third bevel gear 306 are provided at both ends, a fourth bevel gear 307 is provided on the stirring shaft 401, the first bevel gear 304 is meshed with the second bevel gear 305, the third bevel gear 306 is meshed with the fourth bevel gear 307, and a hollow sleeve for mounting the stirring shaft 401 is provided on the mounting frame 301. Each bevel gear is used for the steering of the transmission.

[0047] like Figure 4-5 As shown, a mounting cavity is provided in the mounting frame 301 , and a plurality of bearings are provided in the mounting cavity. Transmission shafts of various levels are arranged in the mounting cavity and supported by the bearings. The hollow sleeve is provided with a plurality of bearings for supporting the stirring shaft 401 .

[0048] like Figure 1-2 As shown, a set of mobile drive mechanisms 20 are provided on the left and right walls of the quenching pool 10, and at least one set of transmission mechanisms and one set of stirring mechanisms 40 are provided on the extension frame 204 of each mobile drive mechanism 20. The transmission mechanisms on both sides are close to the side walls and bottom walls of the concave cavity 101 to leave a quenching area for quenching in the middle of the concave cavity 101. The two sets of mobile drive structures can move on both sides of the quenching pool 10, so that the stirring mechanisms 40 can be set on the left and right sides of the quenching pool 10 to further improve the stirring effect. At the same time, the middle part can be reserved for placing and taking out the quenching workpieces.

[0049] like Figure 1-2 As shown, mounting seats 205 are provided on the left and right walls of the quenching pool 10, and sliding rods 202 penetrating the mounting seats 205 are provided at both ends of the sliding frame 201. The driving motor 206 is fixed to the left and right walls of the quenching pool 10 through the motor seat and its output shaft extends into the rectangular frame 203.

[0050] The above is an introduction to the heat treatment stirring system provided by the present invention. The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. Heat treatment stirring system, characterized in that, include: A quenching tank having a concave cavity in which a quenching liquid is disposed; A mobile driving mechanism, comprising a driving motor arranged outside the quenching pool and a sliding frame arranged horizontally and slidably on the outer wall of the quenching pool, a rectangular hole is provided in the middle of the sliding frame, a rectangular frame is provided in the rectangular hole, the width of the rectangular frame is the same as the width of the rectangular hole, the height of the rectangular frame is less than the height of the rectangular frame hole, a runway-shaped hole is provided in the rectangular frame and a driving tooth is provided on the side wall of the runway-shaped hole, a driving gear is provided on the output shaft of the driving motor, the driving gear is meshed with the driving tooth, an extension frame passing through the top of the rectangular frame is provided on the top of the rectangular frame, a holding block is also provided on the outer wall of the quenching pool, the holding block is a runway-shaped structure, a roller is provided on the extension frame, and when the rectangular frame and the sliding frame move, the roller always moves close to the holding block; The transmission mechanism comprises a mounting frame having one end connected to the extension frame and the other end extending into the concave cavity, a transmission motor arranged at the outer end of the mounting frame, and a multi-stage transmission shaft arranged in the mounting frame, wherein the transmission motor is transmission-connected to the input end of the multi-stage transmission shaft; A stirring mechanism, which is arranged at the inner end of the mounting frame and connected to the output end of the multi-stage transmission shaft; The controller is connected with the heating device and the driving mechanism to control the operation of the two.

2. The heat treatment stirring system according to claim 1, characterized in that: The stirring mechanism includes a stirring shaft, a first bevel gear arranged on the stirring shaft, an inner sleeve ring arranged on the stirring shaft, an inner stirring blade arranged on the inner sleeve ring, an outer sleeve ring arranged on the outer end of the inner stirring blade, and an outer stirring blade arranged on the outer sleeve ring and rotated by a rotating shaft. The stirring shaft is transmission-connected to the output end of the multi-stage transmission shaft, and a second bevel gear is arranged on the inner end of the rotating shaft. The second bevel gear is meshed with the first bevel gear so that the outer stirring blade rotates under the drive of the first bevel gear while following the revolution of the outer sleeve ring.

3. The heat treatment stirring system according to claim 1, characterized in that: A plurality of thermocouples are arranged in the quenching pool. The thermocouples are distributed in a matrix on the inner wall of the quenching pool, and each thermocouple is connected to a controller.

4. The heat treatment stirring system according to claim 3, characterized in that: A position detection mechanism for detecting the position of the rectangular frame is arranged between the sliding frame and the side wall of the quenching pool, and the position detection mechanism is connected with the controller.

5. The heat treatment stirring system according to claim 4, characterized in that: The position detection mechanism is an angle sensor, and the angle sensor and the output shaft of the driving motor are driven by a group of meshing gears; the position detection mechanism includes a plurality of slot-shaped optical couplers arranged on the outer wall of the quenching pool, and a sensing head sliding over the slot-shaped optical couplers is provided on the sliding frame, and the slot-shaped optical couplers are connected to the controller; the position detection mechanism includes a magnet and a plurality of Hall sensors, and the magnet is arranged on the extension frame, and the Hall sensors are arranged in a circle at equal intervals along the motion trajectory of the extension frame, and each Hall sensor is connected to the controller.

6. The heat treatment stirring system according to claim 2, characterized in that: The multi-stage transmission shaft includes a first-stage transmission shaft connected to the transmission motor and a second-stage transmission shaft transmission-connected to the first-stage transmission shaft. The first-stage transmission shaft is vertically arranged and a first bevel gear is provided at its bottom. The second-stage transmission shaft is left-right arranged and a second bevel gear and a third bevel gear are provided at both ends. A fourth bevel gear is provided on the stirring shaft. The first bevel gear is meshed with the second bevel gear, and the third bevel gear is meshed with the fourth bevel gear. A hollow sleeve for installing the stirring shaft is provided on the mounting frame.

7. The heat treatment stirring system according to claim 6, characterized in that: An installation cavity is provided in the installation frame, and a plurality of bearings are provided in the installation cavity. Transmission shafts of various levels are arranged in the installation cavity and supported by the bearings. The hollow sleeve is provided with a plurality of bearings for supporting the stirring shaft.

8. The heat treatment stirring system according to claim 1, characterized in that: A set of mobile drive mechanisms are provided on the left and right walls of the quenching pool. At least one transmission mechanism and one stirring mechanism are provided on the extension frame of each mobile drive mechanism. The transmission mechanisms on both sides are close to the side walls and bottom walls of the cavity to leave a quenching area for quenching in the middle of the cavity.

9. The heat treatment stirring system according to claim 1, characterized in that: Mounting seats are arranged on the left and right walls of the quenching pool, sliding rods penetrating the mounting seats are arranged at both ends of the sliding frame, and the driving motor is fixed on the mounting seats.

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