An even-heated pit-type tempering furnace
By introducing uniformly heated components into the pit-type tempering furnace and using a motor to drive the connecting plate to rotate, thereby causing the hanger components to revolve and rotate, the problem of uneven heating on the inner and outer sides of the mold steel is solved, and the tempering quality is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN SOUTHWEST IND FURNACE CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-23
AI Technical Summary
In existing pit-type tempering furnaces, the inner and outer sides of the mold steel are heated unevenly, resulting in a decrease in tempering quality.
The uniform heating component, including a connecting plate, transmission gear and gear ring, is adopted. The connecting plate is driven to rotate by a motor, which causes the hanger to revolve and rotate, thus achieving uniform heating of the workpiece.
This ensures uniform heating of the workpiece's inner and outer surfaces, improving the quality of tempering.
Smart Images

Figure CN224394950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pit-type tempering furnaces, and in particular to a pit-type tempering furnace with uniform heating. Background Technology
[0002] A pit-type tempering furnace is a vertical cylindrical heat treatment equipment, mainly welded from structural steel and steel plates. It is mainly used for tempering general metal parts in air, as well as for quenching, annealing, and aging heat treatment of light alloy parts such as aluminum alloy die castings, pistons, and aluminum plates. The working principle is to use electric current to generate heat through heating elements arranged in the furnace chamber, and to heat the parts through current and radiation.
[0003] A search revealed Chinese patent number CN219709353U, which proposes a pit-type tempering furnace for mold steel production, comprising a furnace body and a hanger; a transmission rod is rotatably connected to the bottom end of the furnace body, the top end of the transmission rod is located inside the furnace body, a rotating base is fixedly connected to the top end of the furnace body, a transmission gear is fixedly connected to the bottom end of the transmission rod, and a first motor is installed at the bottom end of the furnace body.
[0004] The aforementioned patent uses a first motor to drive a drive gear to rotate, which in turn drives a rotating chassis to rotate through a transmission gear. This allows the hanger to rotate, ensuring that the mold steel is heated evenly. However, as the mold steel rotates with the hanger, its position relative to the hanger is fixed, and therefore its inner and outer sides are fixed relative to the heating rods. This still results in uneven heating of the inner and outer sides of the mold steel, thus reducing the quality of tempering. Therefore, a pit-type tempering furnace with uniform heating is needed. Utility Model Content
[0005] The purpose of this invention is to provide a well-type tempering furnace with uniform heating to solve the problems mentioned in the background art.
[0006] The technical solution adopted in this utility model is:
[0007] A pit-type tempering furnace with uniform heating, comprising:
[0008] Tempering furnace components, the tempering furnace components include:
[0009] Well-type tempering furnace body;
[0010] Heating rods are embedded in the inner wall of the pit-type tempering furnace body;
[0011] A fixed base is located at the outer bottom of the well-type tempering furnace body;
[0012] An electric actuator is located on the outer top of the fixed base;
[0013] Uniform heating component, comprising:
[0014] A connecting seat is located on the movable end of the electric push rod;
[0015] The top cover is located on the outer wall surface of the connecting seat;
[0016] The motor is located on the outer top of the top cover, and the output end of the motor passes through the top cover and is equipped with a rotating shaft;
[0017] A connecting plate is located at the other end of the rotating shaft;
[0018] Multiple connecting shafts, each with the same end passing through a connecting plate and rotatably connected to it; each connecting shaft has a placement plate at the end facing the top cover; each connecting shaft has a transmission gear on its outer wall surface;
[0019] The gear ring is located on the inner wall of the well-type tempering furnace body, and the gear ring meshes with each transmission gear;
[0020] Hanger components are located on the side of the mounting plate facing the top cover.
[0021] Optionally, several heating rods are provided and are axially spaced at equal intervals on the inner wall surface of the well-type tempering furnace body with the central axis of the furnace body as the rotation axis.
[0022] Optionally, the outer wall of the electric push rod is fitted with a rod seat that is fixedly connected to the outer wall surface of the well-type tempering furnace body.
[0023] Optionally, it may also include multiple limit components, each of which includes:
[0024] A fixing block is located on the side of the connecting plate facing the top cover;
[0025] The first locking screw passes through the side wall of the fixing block and is threadedly connected to the fixing block, and one end of the first locking screw is in contact with the outer wall of the placement plate.
[0026] Optionally, the outer diameter of the connecting plate is smaller than the inner diameter of the well-type tempering furnace body, and it does not contact the outer wall surface of each heating rod.
[0027] Optional, hanger components include:
[0028] The first vertical rod is located on the side of the placement plate facing the top cover;
[0029] The suspension rod is installed on the outer wall of the first vertical rod;
[0030] Optionally, the hanger components may also include:
[0031] The second vertical rod is slidably connected to the first vertical rod, and the hanging rods are respectively set on the outer wall surfaces of the first and second vertical rods;
[0032] The second locking screw is threadedly connected to the first vertical rod, and one end of the second locking screw contacts the outer wall surface of the second vertical rod to limit the movement of the second vertical rod.
[0033] Optionally, the sum of the lengths of the first and second vertical rods is greater than the vertical distance between the top cover and the connecting plate.
[0034] The workpiece is suspended on the hanger and placed in the tempering furnace by a gear ring, a placement plate, and a transmission gear. The motor is then turned on, and the motor drives the connecting plate to rotate via the shaft. This causes the hanger to revolve around the center of the furnace, and the rotation of the connecting plate, in turn, causes the transmission gear to rotate on its own axis under the action of the gear ring. This, in turn, causes the hanger to rotate on its own axis, which in turn causes the hanger to rotate on its own axis. This method of simultaneous revolution and rotation ensures uniform heating of the workpiece, guaranteeing even heating on both the inner and outer sides, thereby improving the tempering quality. Attached Figure Description
[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0036] Figure 1 This is a schematic diagram of the overall structure in this application;
[0037] Figure 2 This is a schematic diagram of the open state in this application;
[0038] Figure 3 This is a schematic diagram of the inverted structure of the uniformly heated component in this application;
[0039] Figure 4 This is a schematic diagram of the external wall connection structure of the pit-type tempering furnace in this application;
[0040] Figure 5 This is a schematic diagram of the hanger component structure in this application.
[0041] Figure label:
[0042] 1. Tempering furnace components; 11. Pit-type tempering furnace body; 12. Heating rod; 13. Fixing base; 14. Electric push rod; 15. Rod holder;
[0043] 2. Uniform heating component; 21. Connecting seat; 22. Top cover; 23. Motor; 24. Rotating shaft; 25. Connecting plate; 26. Placement plate; 27. Connecting shaft; 28. Transmission gear; 29. Gear ring;
[0044] 3. Limiting component; 31. Fixing block; 32. First locking screw;
[0045] 4. Hanger components; 41. First vertical rod; 42. Second vertical rod; 43. Hanging rod; 44. Second locking screw; Detailed Implementation
[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0048] Given the current technology, when patients clean their dentures, they mostly soak them in a cleaning solution and then clean them with a soft brush. The whole cleaning process is time-consuming, laborious, and slow.
[0049] like Figure 1-5 As shown, this utility model embodiment provides a pit-type tempering furnace with uniform heating, comprising:
[0050] Tempering furnace component 1, tempering furnace component 1 includes:
[0051] The pit-type tempering furnace body 11 is used to provide a tempering environment for workpieces.
[0052] Heating rod 12 is embedded in the inner wall of pit-type tempering furnace body 11; it is used to heat and temper workpieces, and its model is compatible with the heating rod 12 model in the cited document.
[0053] A fixed base 13 is located at the outer bottom of the well-type tempering furnace body 11;
[0054] Electric push rod 14 is located on the outer top of fixed base 13; the electric push rod 14 is model DTZ-500-300, which is used to provide the driving force required for the workpiece to be picked up and put into the tempering furnace. Two electric push rods 14 and two fixed bases 13 are provided and are arranged symmetrically to each other.
[0055] Uniform heating component 2, comprising:
[0056] Connecting seat 21 is located on the movable end of electric push rod 14;
[0057] Top cover 22 is disposed on the outer wall surface of connecting seat 21;
[0058] Motor 23 is located on the outer top of top cover 22, and the output end of motor 23 passes through top cover and is provided with a rotating shaft 24 to provide the driving force required for the rotation of connecting plate 25;
[0059] A connecting plate 25 is located at the other end of the rotating shaft 24;
[0060] Multiple connecting shafts 27, each of which has the same end passing through the connecting plate 25 and being rotatably connected to the connecting plate 25; each of the connecting shafts 27 has a placement plate 26 at one end facing the top cover 22; each of the connecting shafts 27 has a transmission gear 28 on its outer wall surface, wherein there are four connecting shafts 27, which are arranged in a cross shape at the top of the connecting plate 25.
[0061] A gear ring 29 is disposed on the inner wall surface of the well-type tempering furnace body 11, and the gear ring 29 meshes with each transmission gear 28;
[0062] Hanger 4 is located on the side of the placement plate 26 facing the top cover 22. Hanger 4 is used to suspend the workpiece. The outer wall of the well-type tempering furnace body 11 is equipped with a control panel. The heating rod 12, electric push rod 14 and motor 23 are electrically connected to an external power supply through the control panel. The rotating shaft 24 is not only used to transmit power, but also to connect and support the connecting plate 25.
[0063] Furthermore, a plurality of heating rods 12 are provided, and are axially and equally spaced on the inner wall surface of the well-type tempering furnace body 11 with the central axis of the well as the rotation axis.
[0064] Furthermore, the outer wall of the electric push rod 14 is fitted with a rod seat 15 that is fixedly connected to the outer wall of the well-type tempering furnace body 11. The rod seat 15 is used to provide auxiliary connection support for the electric push rod 14, thereby improving the overall stability of the electric push rod 14 when it moves.
[0065] Furthermore, it also includes multiple limiting components 3, each limiting component 3 comprising:
[0066] A fixing block 31 is provided on the side of the connecting plate 25 facing the top cover 22;
[0067] The first locking screw 32 passes through the side wall of the fixing block 31 and is threadedly connected to the fixing block 31. One end of the first locking screw 32 contacts the outer wall of the placement plate 26. The first locking screw 32 is used to limit the position of the placement plate 26. The outer wall of the first locking screw 32 is threadedly connected to the fixing block 31. The number of limiting components 3 is adapted to the number of placement plates 26.
[0068] Furthermore, the outer diameter of the connecting plate 25 is smaller than the inner diameter of the well-type tempering furnace body 11, and it does not contact the outer wall surface of each heating rod 12.
[0069] Working principle: When the electric push rod 14 is opened, its movable end moves the top cover 22 upward via the connecting seat 21. The top cover 22 then moves the connecting plate 25 upward, causing the transmission gear 28 to separate from the gear ring 29. The limiting component 3 is then fixed, restricting the position of the placement plate 26. Next, after suspending the workpieces on the hanger 4, the limiting component 3 is opened again, no longer restricting the placement plate 26. Then, the electric push rod 14 is closed, causing it to move downward and reset, moving the transmission gear 28 downward so that it meshes with the gear ring 29. Secondly, the motor 23 is turned on. The motor 23 drives the connecting plate 25 to rotate through the rotating shaft 24, causing the hanger component 4 on the placement plate 26 to revolve together. At the same time, the rotation of the connecting plate 25 drives the transmission gear 28 to move. Under the action of the gear ring 29, the transmission gear 28 rotates on its own axis, thereby driving the hanger component 4 to rotate on its own axis through the placement plate 26. Then, the workpiece is heated and tempered by the heating rod 12. In this way, the workpiece can be heated evenly, ensuring that the inner and outer sides of the workpiece are heated evenly, thereby improving the tempering quality.
[0070] Specifically, such as Figure 1-5 As shown,
[0071] Hanger component 4 includes:
[0072] First vertical rod 41;
[0073] The hanger 43 is disposed on the outer wall surface of the first vertical rod 41.
[0074] Furthermore, the hanger component 4 also includes:
[0075] The second vertical rod 42 is slidably connected to the first vertical rod 41, and the hanging rods 43 are respectively disposed on the outer wall surfaces of the first vertical rod 41 and the second vertical rod 42;
[0076] The second locking screw 44 is threadedly connected to the first vertical rod 41, and one end of the second locking screw 44 contacts the outer wall surface of the second vertical rod 42. The second locking screw 44 is used to limit and fix the moving second vertical rod 42.
[0077] Furthermore, the sum of the lengths of the first vertical rod 41 and the second vertical rod 42 is greater than the vertical distance between the top cover 22 and the connecting plate 25, which can prevent the second vertical rod 42 from moving and falling off from the first vertical rod 41.
[0078] Working principle: When suspending a workpiece on the hanger 4, according to the size of the workpiece, open the second locking screw 44, move the second vertical rod 42 upward to the appropriate position, and then fix the second locking screw 44. This segmented movable hanger makes it easy to adjust the suspension of workpieces of different sizes, thereby meeting different usage needs.
[0079] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A pit-type tempering furnace with uniform heating, characterized in that, include: Tempering furnace components, the tempering furnace components comprising: Well-type tempering furnace body; Heating rods are embedded in the inner wall of the well-type tempering furnace body; A fixing base is located at the outer bottom of the well-type tempering furnace body; An electric actuator is located on the outer top of the fixed base; Uniform heating assembly, the uniform heating assembly comprising: A connecting seat is provided on the movable end of the electric push rod; A top cover is provided on the outer wall surface of the connecting seat; A motor is located on the outer top of the top cover, and the output end of the motor passes through the top cover and is provided with a rotating shaft; A connecting plate is located at the other end of the rotating shaft; Multiple connecting shafts, each having a common end that passes through and is rotatably connected to the connecting plate; each connecting shaft has a placement plate at one end facing the top cover; and each connecting shaft has a transmission gear on its outer wall surface. A gear ring is disposed on the inner wall surface of the well-type tempering furnace body, and the gear ring meshes with each of the transmission gears; A hanger component is provided on the side of the placement plate facing the top cover.
2. The well-type tempering furnace with uniform heating according to claim 1, characterized in that, The heating rods are arranged in a plurality of units, and are axially spaced at equal intervals on the inner wall surface of the well-type tempering furnace body with the central axis of the furnace body as the rotation axis.
3. The well-type tempering furnace with uniform heating according to claim 1, characterized in that, The outer wall of the electric push rod is fitted with a rod seat that is fixedly connected to the outer wall surface of the well-type tempering furnace body.
4. The uniformly heated pit-type tempering furnace according to claim 1, characterized in that, It also includes multiple limiting components, each of which includes: A fixing block is provided on the side of the connecting plate facing the top cover; A first locking screw passes through the side wall of the fixing block and is threadedly connected to the fixing block, and one end of the first locking screw contacts the outer wall of the placement plate.
5. A pit-type tempering furnace with uniform heating according to claim 1, characterized in that, The outer diameter of the connecting plate is smaller than the inner diameter of the well-type tempering furnace body, and it does not contact the outer wall surface of each of the heating rods.
6. A pit-type tempering furnace with uniform heating according to claim 1, characterized in that, The hanger component includes: The first vertical rod is located on the side of the placement plate facing the top cover; The suspension rod is located on the outer wall surface of the first vertical rod.
7. A pit-type tempering furnace with uniform heating according to claim 6, characterized in that, The hanger component also includes: The second vertical rod is slidably connected to the first vertical rod, and the hanging rods are respectively disposed on the outer wall surfaces of the first vertical rod and the second vertical rod; the second locking screw is threadedly connected to the first vertical rod, and one end of the second locking screw contacts the outer wall surface of the second vertical rod, for limiting the movement of the second vertical rod.
8. A pit-type tempering furnace with uniform heating according to claim 6, characterized in that, The sum of the lengths of the first and second vertical rods is greater than the vertical distance between the top cover and the connecting plate.