Water quenching type multipurpose furnace

Abstract

The utility model discloses a water quenching type multipurpose furnace which comprises a front furnace body and a rear furnace body, a feeding and discharging chamber and a quenching chamber are arranged in the front furnace body in an up-down mode, a heat treatment chamber is formed in the rear furnace body, a quenching cavity is formed in the middle in the quenching chamber, stirring chambers are arranged in the quenching chamber and located on the two sides of the quenching cavity respectively, and the stirring chambers are communicated with the quenching cavity. The quenching cavity is located under the feeding and discharging chamber, and at least one stirring mechanism is arranged in each stirring chamber. By arranging the feeding and discharging chamber, the quenching chamber and the lifting table, the lifting table can be switched to be located at the feeding and discharging position and the quenching position, switching of different heat treatment steps in the furnace is achieved, and the heat treatment working efficiency is improved. The stirring chambers are arranged on the two sides of the quenching cavity correspondingly, and the stirring mechanism is arranged in each stirring chamber, so that flowing can be formed in the quenching chamber, and the quenching efficiency is improved. And the quenching water in the quenching chamber can flow in order through the guide cylinder, circulation is formed, and the quenching efficiency and quality of the workpiece are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment equipment, in particular to a water quenching multi-purpose furnace. Background Art

[0002] Quenching is to put the workpiece into the furnace and heat it to a quenching temperature above the critical point and keep it for a period of time, then quickly take the workpiece out of the furnace and put it into the quenching liquid oil or water for quenching. During the quenching process, the flow of the quenching liquid has a certain influence on the quenching efficiency. Therefore, it is necessary to study a water-quenching multi-purpose furnace that improves the fluidity of the quenching liquid to improve the quenching efficiency to solve this problem. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a water-quenching multi-purpose furnace that improves quenching efficiency.

[0004] The technical solution to realize the utility model is as follows

[0005] The water quenching multi-purpose furnace comprises a front furnace body and a rear furnace body connected with the interior of the front furnace body, a front chamber furnace door is arranged on one side of the front furnace body, a middle door is arranged between the other side of the front furnace body and the entrance of the rear furnace body, an inlet and outlet chamber and a quenching chamber are formed in an up-and-down manner in the front furnace body, and a lifting platform for switching between the inlet and outlet chamber and the quenching chamber, and a lifting mechanism for driving the lifting platform to lift and lower, a heat treatment chamber is formed in the rear furnace body, a quenching cavity is formed in the middle of the quenching chamber, stirring chambers are arranged on both sides of the quenching cavity in the quenching chamber, and the stirring chamber and the quenching chamber are connected. The quenching chamber is located directly below the inlet and outlet chambers. At least one stirring mechanism is arranged in each stirring chamber. The stirring mechanism includes a stirring motor, a stirring shaft, stirring blades and a guide tube. The stirring motor is mounted on the front furnace body. One end of the stirring shaft is connected to the output end of the stirring motor by a transmission connection, and the other end extends into the stirring chamber for the stirring blades to be mounted. The guide tube is arranged in the middle position of the height in the stirring chamber. The stirring blades are located in the guide tube. The lower end of the guide tube is connected to the lower part of the quenching chamber, and the upper end of the guide tube is connected to the upper part of the quenching chamber.

[0006] As an implementation scheme, a shaft sleeve is installed on the front furnace body, one end of the shaft sleeve is installed on the front furnace body, and the other end extends toward the guide tube. The stirring shaft is in the shaft sleeve, and a bearing is arranged between the stirring shaft and the shaft sleeve. A baffle is fixedly arranged on the shaft sleeve above the guide tube.

[0007] As an implementation scheme, a support frame is fixedly installed at the bottom of the stirring chamber, and a flow space is reserved between the bottom of the support frame and the bottom wall of the quenching chamber. The guide tube is vertically arranged above the support frame to form a through-hole from top to bottom, and the upper end of the guide tube is retained by a retaining frame fixedly installed on the inner wall of the stirring chamber.

[0008] As an embodiment, the quenching chamber is formed inside a quenching frame fixedly arranged in the middle of the quenching chamber, and a bottom bracket is fixedly arranged at the bottom of the quenching chamber to support the bottom of the quenching frame. The quenching frame has a flow channel at least at the bottom and top to connect with the stirring chamber.

[0009] As an embodiment, a first pipeline and a second pipeline are formed inside the quenching chamber, a water pump is installed on the first pipeline, the first pipeline is connected to the inlet end of a cooling tower, the outlet end of the cooling tower is connected to the second pipeline, and a filter is installed on the first pipeline and / or the second pipeline.

[0010] As an implementation scheme, two circulation fans are installed on the top of the rear furnace body, and a plurality of electric heaters are arranged at intervals on both sides of the rear furnace body.

[0011] As an implementation scheme, a rear push chain mechanism is provided on one side of the rear furnace body to push the transport trolley in the rear furnace body to the lifting platform in the front furnace body. The rear push chain mechanism includes a pushing block, a pushing chain, a pushing gear, and a pushing motor. An installation box is fixedly installed outside the rear furnace body, the pushing motor is assembled on the installation box, the pushing gear is rotatably assembled on the installation box, the pushing block is slidably arranged in the rear furnace body, one end of the push chain is connected to the pushing block, and the other end is outside the rear furnace body and meshes with the pushing gear for transmission.

[0012] The above technical solution is adopted. By setting up the feeding and discharging chamber, the quenching chamber and the lifting platform, the lifting platform can be switched between the feeding and discharging position and the quenching position, and the switching of different heat treatment steps can be realized in the furnace to improve the heat treatment work efficiency. By setting stirring chambers on both sides of the quenching chamber and setting a stirring mechanism in each stirring chamber, the quenching chamber in the quenching chamber can form a flow to improve the quenching efficiency. The guide tube can make the quenching water in the quenching chamber flow in an orderly manner and form a circulation, further improving the quenching efficiency and quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view schematic diagram of the utility model;

[0014] Figure 2 for Figure 1 AA section view;

[0015] Figure 3 for Figure 1 BB-direction cross-sectional view;

[0016] Figure 4 It is a schematic diagram of the rear push chain mechanism in the utility model;

[0017] In the accompanying drawings, 10, the front furnace body, 11, the rear furnace body, 12, the front chamber furnace door, 13, the middle door, 14, the feeding and discharging chamber, 15, the quenching chamber, 16, the lifting platform, 17, the lifting and lifting mechanism, 18, the heat treatment chamber, 19, the quenching chamber, 20, the stirring chamber, 21, the installation platform, 22, the stirring mechanism, 23, the stirring motor, 24, the stirring shaft, 25, the stirring blade, 26, the guide tube, 27, the shaft sleeve, 28, the bearing, 29, the baffle, 30, the support frame, 31, the circulation space, 32, the retaining frame, 33, the quenching frame, 34, the bottom bracket, 35, the circulation channel, 36, the first pipeline, 37, the second pipeline, 38, the water pump, 39, the circulating fan, 40, the electric heater, 41, the pushing block, 42, the push chain, 43, the pushing gear, 44, the installation box. DETAILED DESCRIPTION

[0018] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0019] The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship. The reference to "embodiment" in this application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0020] See also Figure 1As shown in FIG. 3 , a water-quenching multipurpose furnace comprises a front furnace body 10 and a rear furnace body 11 connected with the interior of the front furnace body 10, a front chamber furnace door 12 is arranged on the front side of the front furnace body 10, a middle door 13 is arranged between the other side of the front furnace body 10 and the entrance of the rear furnace body 11, the middle door can be realized by two furnace doors, one furnace door corresponds to the entrance of the rear furnace body, and the other corresponds to the rear side of the front furnace body, the two furnace doors are lifted respectively by a commonly used chain lifting mechanism, a material inlet and outlet chamber 14 and a quenching chamber 15 are formed in an up-and-down manner in the front furnace body 10, a lifting platform 16 for switching between the material inlet and outlet chamber 14 and the quenching chamber 15, and a lifting and lifting mechanism 17 for driving the lifting platform 16 to lift and lower, the lifting and lifting mechanism 17 is realized by a lifting method of a motor and a sprocket chain, a heat treatment chamber 18 is formed in the rear furnace body 11, and a middle door 13 in the quenching chamber 15 is provided. A quenching chamber 19 is formed in the part. During use, the workpiece to be heat treated is placed on the lifting platform 16 by opening the front chamber furnace door 12, and then sent to the heat treatment chamber 18 in the rear furnace body 11 for heat treatment. After heat treatment, it is pushed back to the lifting platform 16 and lowered into the quenching chamber 15 for quenching. The number of times the workpiece is heated and quenched is used according to the heat treatment process of different products. After the entire heat treatment process is completed, the workpiece can be taken out; there are two workstations arranged up and down on the lifting platform 16. When the lower workstation is in the quenching chamber 15 with the workpiece, the upper workstation is in the feed and discharge chamber 14. When there is no workpiece to be processed in the heat treatment chamber 18, the external workpiece to be heat treated can be sent into the heat treatment chamber 18 for heat treatment, so that the previous batch of workpieces can be quenched while the next batch of workpieces can be heated and heated to improve the heat treatment work efficiency.

[0021] In one embodiment of the present application, the lower dimension of the front furnace body 10 is larger than the upper dimension, and stirring chambers 20 are respectively arranged on both sides of the quenching chamber 19 in the quenching chamber 15. The front furnace body 10 outside the stirring chamber 20 forms a mounting platform 21, and the stirring chamber 20 is connected with the quenching chamber 19. The quenching chamber 19 is directly below the inlet and outlet chamber 14. At least one stirring mechanism 22 is arranged in each stirring chamber 20. The stirring mechanism 22 includes a stirring motor 23, a stirring shaft 24, a stirring blade 25, and a guide tube 26. The stirring motor 23 is assembled on the mounting platform 21 of the front furnace body 10, and the stirring motor 23 is arranged downward. One end of the stirring shaft 24 forms a transmission connection with the output end of the stirring motor 23, and the other end extends into the stirring chamber 20 for the stirring blade 25 to be assembled. The rotation of the stirring motor 23 can be achieved through the stirring The mixing shaft 24 drives the rotation of the stirring blade 25, thereby driving the quenching water in the quenching chamber 15 to stir and flow. The guide tube 26 is arranged at the middle position in height in the stirring chamber 20, and the stirring blade 25 is located in the guide tube 26. The lower end of the guide tube 26 is connected to the bottom of the quenching chamber 19, and the upper end of the guide tube 26 is connected to the top of the quenching chamber 19. Through the arrangement of the guide tube 26, the quenching water in the quenching chamber 15 can surge from the bottom and then enter the quenching chamber 19 to quench the workpiece in the quenching chamber 19. Compared with the quenching chamber 15 without stirring, the fluidity of the quenching water is increased and the quenching efficiency is improved. Compared with the case with stirring and without the guide tube 26, the quenching water in the quenching chamber 15 can flow in an orderly manner through the guide tube 26 and form a circulation, thereby further improving the quenching efficiency and quality of the workpiece.

[0022] In one embodiment of the present application, a shaft sleeve 27 is installed on the front furnace body 10, one end of the shaft sleeve 27 is installed on the front furnace body 10, and the other end extends toward the guide tube 26 and enters the guide tube 26. The stirring shaft 24 is in the shaft sleeve 27, and a bearing 28 is arranged between the stirring shaft 24 and the shaft sleeve 27. Through the arrangement of the shaft sleeve 27, it is ensured that the stirring shaft 24 can always rotate stably after extending a certain length, avoiding the rotation instability caused by the large extension length of the stirring shaft 24. A baffle plate 29 is fixedly arranged on the shaft sleeve 27 above the guide tube 26. The baffle plate 29 is in a ring shape and is arranged on the outer periphery of the shaft sleeve 27. It is used to form a certain barrier to the quenching water flowing from bottom to top, avoiding the phenomenon that the quenching water directly hits the inner wall of the front furnace body 10, thereby ensuring the stability of the equipment operation.

[0023] In one embodiment of the present application, a support frame 30 is fixedly provided at the bottom of the stirring chamber 20, and a flow space 31 is reserved between the bottom of the support frame 30 and the bottom wall of the quenching chamber 15 for quenching water to flow. The guide tube 26 is vertically arranged above the support frame 30 to form a through-hole from top to bottom. The upper end of the guide tube 26 is retained by a retaining frame 32 fixedly provided on the inner wall of the stirring chamber 20. The guide tube 26 can be fixedly connected to the support frame and the retaining frame 32 by welding or by bolts, screws or other fixed connection methods; the upper and lower ports of the guide tube 26 are both designed with arc-shaped expansion ports to ensure the smooth flow of quenching water.

[0024] In one embodiment of the present application, the quenching chamber 19 is formed inside a quenching frame 33 fixedly arranged in the middle of the quenching chamber 15. A bottom bracket 34 is fixedly arranged at the bottom of the quenching chamber 15 to support the bottom of the quenching frame 33 to achieve stable support. The quenching frame 33 has a flow channel 35 at least at the bottom and top to communicate with the stirring chamber 20, so that the quenching water in the quenching chamber 19 flows out from the bottom and enters from the top. Of course, the middle part of the quenching frame 33 can also be designed as a hollow part to further increase the flow path of the quenching water and improve the fluidity of the water flow.

[0025] In one embodiment of the present application, a first pipe 36 and a second pipe 37 are formed inside the quenching chamber 15, a water pump 38 is installed on the first pipe 36, the first pipe 36 is connected to the inlet end of a cooling tower, and the outlet end of the cooling tower is connected to the second pipe 37, and a filter is installed on the first pipe 36 and / or the second pipe 37. When the water temperature in the quenching chamber 15 is higher than the set temperature value, it is pumped to the cooling tower by the water pump 38 for cooling, and after cooling, it flows back to the quenching chamber 15 through the second pipe 37, and the impurities in the water can be filtered out by the filter.

[0026] In one embodiment of the present application, two circulating fans 39 are installed at the top of the rear furnace body 11, and multiple electric heaters 40 are arranged at intervals on both sides of the rear furnace body 11. The multiple electric heaters 40 are distributed on both sides of the heat treatment chamber 18 to speed up the heating efficiency of the rear furnace body 11 and cooperate with the blowing of the circulating fans 39 to make the temperature in the furnace tend to be balanced.

[0027] In one embodiment of the present application, a rear push chain mechanism is provided on one side of the rear furnace body 11 to push the carrying trolley in the rear furnace body 11 to the lifting platform 16 in the front furnace body 10, and the rear push chain mechanism includes a pushing block 41, a pushing chain 42, a pushing gear 43, and a pushing motor. An installation box 44 is fixedly installed outside the rear furnace body 11, and a relatively closed space is formed in the installation box 44 to protect the components assembled in the installation box, and at the same time, it can also serve to allow the push chain to pass through the rear furnace body wall to make way for a certain cover. The pushing motor is assembled on the installation box 44, and the pushing gear 43 is rotationally assembled in the internal space of the installation box 44. The pushing block 41 is slidably arranged in the rear furnace body 11, that is, a slide rail that slides with the pushing block is provided in the rear furnace body for the pushing block to slide back and forth. One end of the push chain 42 passes through the rear furnace body and is connected to the pushing block 41, and the other end is outside the rear furnace body 11 and meshes with the pushing gear 43 for transmission. The rotation of the push motor drives the push gear 43 to rotate, and the push gear 43 drives the push chain 42 to move. The movement of the push chain 42 drives the movement of the push block 41, thereby generating thrust to push the transport trolley out of the rear furnace body.

[0028] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention to illustrate the technical solution of the present invention, but are not intended to limit the technical solution, let alone the patent scope of the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention. In addition, the direct or indirect application of the technical solution of the present invention in other related technical fields is also included in the patent protection scope of the present invention.

Claims

1. A water quenching multipurpose furnace, comprising a front furnace body and a rear furnace body connected to the interior of the front furnace body, a front chamber furnace door is arranged on one side of the front furnace body, and a middle door is arranged between the other side of the front furnace body and the entrance of the rear furnace body, characterized in that: The front furnace body is provided with a material inlet and outlet chamber and a quenching chamber arranged in an up-and-down manner, a lifting platform for switching between the material inlet and outlet chamber and the quenching chamber, and a lifting mechanism for driving the lifting platform to move up and down. A heat treatment chamber is formed in the rear furnace body. A quenching chamber is formed in the middle of the quenching chamber, and stirring chambers are respectively arranged on both sides of the quenching chamber in the quenching chamber. The stirring chamber is connected with the quenching chamber, and the quenching chamber is directly below the inlet and outlet chamber. At least one stirring mechanism is arranged in each stirring chamber, and the stirring mechanism includes a stirring motor, a stirring shaft, stirring blades, and a guide tube. The stirring motor is assembled on the front furnace body, one end of the stirring shaft is connected to the output end of the stirring motor by transmission, and the other end extends into the stirring chamber for the stirring blade to be assembled. The guide tube is arranged in the middle position of the height in the stirring chamber, and the stirring blade is located in the guide tube. The lower end of the guide tube is connected to the bottom of the quenching chamber, and the upper end of the guide tube is connected to the top of the quenching chamber.

2. The water quenching multipurpose furnace according to claim 1, characterized in that: A shaft sleeve is mounted on the front furnace body, one end of which is mounted on the front furnace body and the other end extends toward the guide tube. The stirring shaft is in the shaft sleeve, a bearing is arranged between the stirring shaft and the shaft sleeve, and a baffle is fixedly arranged on the shaft sleeve above the guide tube.

3. The water quenching multipurpose furnace according to claim 1, characterized in that: A support frame is fixedly installed at the bottom of the stirring chamber, and a flow space is reserved between the bottom of the support frame and the bottom wall of the quenching chamber. The guide tube is vertically arranged above the support frame to form a through-hole, and the upper end of the guide tube is retained by a retaining frame fixedly installed on the inner wall of the stirring chamber.

4. The water quenching multipurpose furnace according to claim 1, characterized in that: The quenching cavity is formed inside a quenching frame fixedly arranged in the middle of the quenching chamber. A bottom bracket is fixedly arranged at the bottom of the quenching chamber to support the bottom of the quenching frame. The quenching frame has flow channels at least at the bottom and top to communicate with the stirring chamber.

5. The water quenching multipurpose furnace according to claim 1, characterized in that: A first pipeline and a second pipeline are formed inside the quenching chamber. A water pump is installed on the first pipeline. The first pipeline is connected to the inlet end of a cooling tower. The outlet end of the cooling tower is connected to the second pipeline. A filter is installed on the first pipeline and / or the second pipeline.

6. The water quenching multipurpose furnace according to claim 1, characterized in that: Two circulation fans are arranged on the top of the rear furnace body, and a plurality of electric heaters are arranged at intervals on both sides of the rear furnace body.

7. The water quenching multipurpose furnace according to claim 1, characterized in that: A rear push chain mechanism is arranged on one side of the rear furnace body to push the carrying trolley in the rear furnace body to the lifting platform in the front furnace body. The rear push chain mechanism includes a pushing block, a pushing chain, a pushing gear and a pushing motor. An installation box is fixedly installed outside the rear furnace body, the pushing motor is assembled on the installation box, the pushing gear is rotatably assembled on the installation box, the pushing block is slidably arranged in the rear furnace body, one end of the push chain is connected to the pushing block, and the other end is outside the rear furnace body and meshes with the pushing gear for transmission.

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