Heat treatment furnace for powder metallurgy high-speed steel

Abstract

The utility model relates to the technical field of powder metallurgy high-speed steel, and discloses a powder metallurgy high-speed steel heat treatment furnace which comprises a furnace body, a sliding groove is formed in the inner bottom of the furnace body, an equipment groove is formed in the furnace body and located at the bottom of the sliding groove, and a moving assembly used for moving a steel structure is arranged in the equipment groove. The inner bottom of the sliding groove is rotationally connected with a threaded lead screw. According to the heat treatment furnace for the powder metallurgy high-speed steel, through the arrangement of the positioning assembly, after the powder metallurgy high-speed steel is placed on the sliding plate, a worker can rotate a threaded bolt, so that the threaded bolt drives a positioning plate to move until the positioning plate is attached to the surface of the powder metallurgy high-speed steel, and therefore the powder metallurgy high-speed steel is fixed to the sliding plate; and displacement of the powder metallurgy high-speed steel during quenching and tempering through a heat treatment furnace in the heat treatment process is avoided, so that the treatment stability of the powder metallurgy high-speed steel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy high-speed steel, in particular to a heat treatment furnace for powder metallurgy high-speed steel. Background Art

[0002] Powder metallurgy high-speed steel is abbreviated as powder metallurgy high-speed steel or PM high-speed steel. A dense steel billet is obtained by using the powder metallurgy method (isostatic pressing treatment of atomized powder in the hot state), and then a high-speed steel profile obtained by hot deformation such as forging and rolling is abbreviated as powder high-speed steel. The powder high-speed steel has a uniform structure and fine grains, eliminating the segregation that is inevitable in cast high-speed steel. Therefore, it has higher toughness and wear resistance than cast high-speed steel with the same composition. At the same time, it also has the advantages of small heat treatment deformation, good forging, rolling and grinding properties. Powder metallurgy high-speed steel needs to go through two processes of quenching and tempering in the heat treatment process through a heat treatment furnace. The widely used heat treatment furnace for it is a box-type resistance furnace. The box-type resistance furnace has the advantages of simple operation, accurate temperature control, can introduce protective gas to prevent parts from oxidizing during heating, and good working conditions. Therefore, it is often used as the heat treatment equipment for powder metallurgy high-speed steel.

[0003] In a heat treatment furnace for powder metallurgy high-speed steel disclosed in the publication number CN218476014U, although by holding the knob to drive the screw to rotate and the screw drives the cone to continuously move along the axial direction of the screw. Since one side of the fixed plate is provided with a wedge edge, when the screw drives the cone to continuously move forward along the axial direction of the screw, the cone contacts and presses the wedge edge, so that the fixed plate presses the powder metallurgy high-speed steel inside the clamping groove, making the side of the powder metallurgy high-speed steel away from the fixed plate fit with the balance plate and the side wall of the clamping groove. There is no need to borrow a rack to put the powder metallurgy high-speed steel into the heat treatment furnace, so that the powder metallurgy high-speed steel is evenly arranged during heat treatment, and the quality of heat treatment is better guaranteed.

[0004] However, this heat treatment furnace for powder metallurgy high-speed steel has the following disadvantages:

[0005] Powder metallurgy high-speed steel needs to go through two processes of quenching and tempering in the heat treatment process through a heat treatment furnace. Due to the heavy weight of the powder metallurgy high-speed steel and the small internal space of the furnace body, it is impossible for workers to carry the powder metallurgy high-speed steel into the furnace body, resulting in inconvenience;

[0006] When the powder metallurgy high-speed steel is quenched and tempered in the heat treatment furnace in the furnace body, when the powder metallurgy high-speed steel is displaced, it affects the quality of quenching and tempering of the powder metallurgy high-speed steel. Summary of the Utility Model

[0007] The technical problem solved by the utility model is to provide a heat treatment furnace for powder metallurgy high-speed steel with high practicability, simple operation and relatively simple structure, which solves the problems mentioned in the above background technology that due to the heavy weight of the powder metallurgy high-speed steel and the small internal space of the furnace body, it is impossible for workers to carry the powder metallurgy high-speed steel into the furnace body, and when the powder metallurgy high-speed steel is displaced, it affects the quality of quenching and tempering of the powder metallurgy high-speed steel.

[0008] To achieve the above objectives, the utility model is realized through the following technical solutions: A heat treatment furnace for powder metallurgy high-speed steel, including a furnace body, a chute is opened on the inner bottom of the furnace body, an equipment slot is opened at the bottom of the chute inside the furnace body, a moving component for moving the steel structure is arranged inside the equipment slot, a threaded screw rod is rotatably connected to the inner bottom of the chute, a sliding plate is threadedly connected to the surface of the threaded screw rod, and positioning components for fixing the steel structure are arranged on both sides of the top of the sliding plate.

[0009] Optionally, the moving component includes a driving motor arranged at the inner bottom of the equipment slot, the output end of the driving motor penetrates through the inner bottom of the chute and is fixedly connected with a first bevel gear, a second bevel gear is meshed with the surface of the first bevel gear, and one end of the second bevel gear is fixedly connected with one end of the threaded screw rod.

[0010] Optionally, the positioning component includes fixing plates arranged on both sides of the top of the sliding plate, a number of threaded holes are equidistantly opened on the surface of the fixing plates from left to right in sequence, a threaded bolt for adjusting the tightness is arranged inside the threaded holes, and a positioning plate is rotatably connected to one end of the threaded bolt.

[0011] Optionally, slideways are symmetrically opened on the inner side wall of the furnace body, and the number of the slideways is two.

[0012] Optionally, sliding strips are arranged on both sides of the sliding plate, and the surface of the sliding strips is slidably connected inside the slideways.

[0013] Optionally, a fixing ring is sleeved on the surface of the furnace body, and a base for supporting the furnace body is arranged at the bottom of the fixing ring.

[0014] The utility model provides a heat treatment furnace for powder metallurgy high-speed steel, which has the following beneficial effects:

[0015] 1. For the heat treatment furnace of the powder metallurgy high-speed steel, through the setting of the moving component, when the powder metallurgy high-speed steel needs to be quenched and tempered in the heat treatment furnace during the heat treatment process, after the powder metallurgy high-speed steel is placed on the sliding plate, the driving motor can be connected to an external power source, so that the driving motor drives the first bevel gear and the second bevel gear to rotate, and then drives the threaded screw rod to rotate inside the chute, thereby driving the sliding plate to move into the furnace body, and then driving the powder metallurgy high-speed steel on the sliding plate to enter the furnace body together. It can avoid manually transporting the powder metallurgy high-speed steel into the furnace body, thereby improving the efficiency and convenience of the powder metallurgy high-speed steel during quenching and tempering in the heat treatment process.

[0016] 2. For the heat treatment furnace of the powder metallurgy high-speed steel, through the setting of the positioning component, after the powder metallurgy high-speed steel is placed on the sliding plate, the staff can rotate the threaded bolt, so that the threaded bolt drives the positioning plate to move until the positioning plate fits against the surface of the powder metallurgy high-speed steel, thereby fixing the powder metallurgy high-speed steel on the sliding plate and preventing the powder metallurgy high-speed steel from shifting during quenching and tempering in the heat treatment furnace, thus improving the stability of the treatment of the powder metallurgy high-speed steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the furnace body structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the moving component structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the positioning component structure of the present invention.

[0021] In the figure: 1. Furnace body; 2. Chute; 3. Equipment slot; 4. Moving component; 41. Driving motor; 42. First bevel gear; 43. Second bevel gear; 5. Threaded screw rod; 6. Sliding plate; 7. Positioning component; 71. Fixed plate; 72. Threaded hole; 73. Threaded bolt; 74. Positioning plate; 8. Slideway; 9. Slide bar; 10. Fixed ring; 11. Base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 to 4, the utility model provides a technical solution: a heat treatment furnace for powder metallurgy high-speed steel, including a furnace body 1, a chute 2 is opened on the inner bottom of the furnace body 1, an equipment slot 3 is opened at the bottom of the furnace body 1 and inside the chute 2, a moving component 4 for moving the steel structure is arranged inside the equipment slot 3, a threaded lead screw 5 is rotatably connected to the inner bottom of the chute 2, a slide plate 6 is threadedly connected to the surface of the threaded lead screw 5, and positioning components 7 for fixing the steel structure are arranged on both sides of the top of the slide plate 6.

[0024] Please refer to Figure 1 and Figure 2 , slideways 8 are symmetrically opened on the inner side wall of the furnace body 1, the number of the slideways 8 is two, slide bars 9 are arranged on both sides of the slide plate 6, and the surface of the slide bars 9 is slidably connected to the inside of the slideways 8.

[0025] Through the arrangement of the slideways 8 and the slide bars 9, the slide plate 6 can be limited, avoiding the deviation of the slide plate 6 during movement, thereby improving the stability of the movement of the slide plate 6.

[0026] Please refer to Figure 1 and Figure 2 , a fixing ring 10 is sleeved on the surface of the furnace body 1, and a base 11 for supporting the furnace body 1 is arranged at the bottom of the fixing ring 10.

[0027] Through the arrangement of the fixing ring 10 and the base 11, the stability of the furnace body 1 sitting on the bottom surface is improved. Embodiment 1

[0028] Please refer to Figure 3 , the moving component 4 includes a driving motor 41 arranged on the inner bottom of the equipment slot 3, the output end of the driving motor 41 penetrates through the inner bottom of the chute 2 and is fixedly connected with a first bevel gear 42, a second bevel gear 43 is meshed with the surface of the first bevel gear 42, and one end of the second bevel gear 43 is fixedly connected with one end of the threaded lead screw 5. When the powder metallurgy high-speed steel needs to be quenched and tempered through the heat treatment furnace during the heat treatment process, after the powder metallurgy high-speed steel is placed on the slide plate 6, the driving motor 41 can be connected to an external power supply, so that the driving motor 41 drives the first bevel gear 42 and the second bevel gear 43 to rotate, and then drives the threaded lead screw 5 to rotate inside the chute 2, thereby driving the slide plate 6 to move into the furnace body 1, and driving the powder metallurgy high-speed steel on the slide plate 6 to enter the furnace body 1 together, which can avoid manual handling of the powder metallurgy high-speed steel into the furnace body 1, thereby improving the efficiency and convenience of the powder metallurgy high-speed steel during the heat treatment process when it needs to be quenched and tempered through the heat treatment furnace. Embodiment 2

[0029] Please refer to Figure 4, the positioning assembly 7 includes fixing plates 71 arranged on both sides of the top of the sliding plate 6. A number of threaded holes 72 are equidistantly arranged on the surface of the fixing plate 71 from left to right in sequence. A threaded bolt 73 for adjusting the tightness is arranged inside the threaded hole 72. One end of the threaded bolt 73 is rotatably connected to a positioning plate 74. Through the setting of the positioning assembly 7, after the powder metallurgy high-speed steel is placed on the sliding plate 6, the staff can rotate the threaded bolt 73, so that the threaded bolt 73 drives the positioning plate 74 to move until the positioning plate 74 fits against the surface of the powder metallurgy high-speed steel, thereby fixing the powder metallurgy high-speed steel on the sliding plate 6, avoiding the displacement of the powder metallurgy high-speed steel during quenching and tempering in the heat treatment furnace, and thus improving the stability of the treatment of the powder metallurgy high-speed steel.

[0030] In the present utility model, the working steps of the device are as follows:

[0031] The first step: First, after the powder metallurgy high-speed steel is placed on the sliding plate 6, the staff can rotate the threaded bolt 73, so that the threaded bolt 73 drives the positioning plate 74 to move until the positioning plate 74 fits against the surface of the powder metallurgy high-speed steel, thereby fixing the powder metallurgy high-speed steel on the sliding plate 6;

[0032] The second step: Then, when the powder metallurgy high-speed steel needs to be quenched and tempered in the heat treatment furnace during the heat treatment process, after the powder metallurgy high-speed steel is placed on the sliding plate 6, the driving motor 41 can be connected to an external power source, so that the driving motor 41 drives the first bevel gear 42 and the second bevel gear 43 to rotate, and then drives the threaded lead screw 5 to rotate inside the chute 2, and then drives the sliding plate 6 to move into the interior of the furnace body 1, thereby driving the powder metallurgy high-speed steel on the sliding plate 6 to enter the interior of the furnace body 1 together.

[0033] It should be noted that the device structure and drawings of the present utility model mainly describe the principle of the present utility model. Based on the technical principle of this design, the settings of the power mechanism, power supply system and control system of the device are not fully described. Under the premise that those skilled in the art understand the principle of the above-mentioned utility model, the specific power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art;

[0034] The standard parts used therein can all be purchased from the market, and can also be customized according to the description of the specification and drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the components known to those skilled in the art, their structures and principles can all be known by those skilled in the art through technical manuals or through conventional experimental methods.

[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A heat treatment furnace for powder metallurgy high-speed steel, comprising a furnace body (1), characterized in that: The inner bottom of the furnace body (1) is provided with a slide groove (2), the interior of the furnace body (1) and located at the bottom of the slide groove (2) is provided with an equipment groove (3), the interior of the equipment groove (3) is provided with a moving component (4) for moving the steel structure, the inner bottom of the slide groove (2) is rotatably connected to a threaded screw (5), the surface of the threaded screw (5) is threadedly connected to a slide plate (6), and positioning components (7) for fixing the steel structure are provided on both sides of the top of the slide plate (6).

2. A heat treatment furnace for powder metallurgy high speed steel according to claim 1, characterized in that: The moving assembly (4) comprises a driving motor (41) arranged on the inner bottom of the equipment slot (3); the output end of the driving motor (41) passes through the inner bottom of the slide slot (2) and is fixedly connected to a first bevel gear (42); the surface of the first bevel gear (42) is meshingly connected to a second bevel gear (43); and the side surface of the second bevel gear (43) is fixedly connected to one end of the threaded screw (5).

3. A heat treatment furnace for powder metallurgy high speed steel according to claim 1, characterized in that: The positioning assembly (7) comprises a fixing plate (71) arranged on both sides of the top of the slide plate (6), a plurality of threaded holes (72) are provided on the surface of the fixing plate (71) at equal intervals from left to right, a threaded bolt (73) for adjusting tightness is provided inside the threaded hole (72), and one end of the threaded bolt (73) is rotatably connected to the positioning plate (74).

4. A heat treatment furnace for powder metallurgy high speed steel according to claim 1, characterized in that: The inner side wall of the furnace body (1) is provided with slideways (8) in an axisymmetric manner, and there are two slideways (8).

5. The heat treatment furnace for powder metallurgy high speed steel according to claim 1, characterized in that: Slide bars (9) are provided on both sides of the slide plate (6), and the surfaces of the slide bars (9) are slidably connected to the interior of the slideway (8).

6. The heat treatment furnace for powder metallurgy high speed steel according to claim 1, characterized in that: A fixing ring (10) is sleeved on the surface of the furnace body (1), and a base (11) for supporting the furnace body (1) is provided at the bottom of the fixing ring (10).

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