Step quenching heat treatment equipment for wear-resistant steel balls

Abstract

The utility model relates to the technical field of steel ball processing, and particularly discloses step quenching heat treatment equipment for wear-resistant steel balls, which comprises a base, a mounting frame fixedly connected to the upper surface of the base, a connecting plate movably connected to the upper surface of the mounting frame, a fixing bolt rotatably connected to the inside of the connecting plate, and a quenching box fixedly connected to one side wall of the connecting plate, the upper surface of the quenching box is fixedly connected with a heater, and one side wall of the quenching box is fixedly connected with a discharge port. A quenching furnace in a quenching box drives a second rotating shaft through a second driving motor, and a second meshing gear is connected with a first meshing gear to realize rotation, so that the quenching furnace can flexibly rotate, and wear-resistant steel balls in the furnace can be more uniformly heated in the quenching process; each steel ball can be ensured to be fully and uniformly contacted with quenching liquid, the problem of non-uniform quenching in traditional equipment is effectively solved, the consistency of hardness, toughness and wear resistance of the steel balls is remarkably improved, and the defective rate of products is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel ball processing technical field, concretely is a kind of grading quenching heat treatment equipment of wear-resistant steel ball. BACKGROUND

[0002] Steel ball is divided into grinding steel ball, forged steel ball, cast steel ball according to production and processing technology.Processing material is divided into bearing steel ball, stainless steel ball, carbon steel ball, copper bearing steel ball· alloy ball etc.Among them, bearing steel ball is an important basic component of industry, alloy steel ball is a kind of spherical iron alloy wear-resistant body with carbon, chromium, manganese, molybdenum etc.as main additive metal elements, and is generated by forging, spinning, rolling and casting etc.It is the most important component of current crushing industrial mine ball, cement ball etc.

[0003] At present, there are still a large number of enterprises using traditional wear-resistant steel ball grading quenching heat treatment equipment in the market.These devices usually adopt relatively simple structure design, such as single quenching furnace heating mode, extensive quenching liquid spraying system and lack of precise control of tempering and cooling link, although it can realize basic heat treatment function, but when processing a large number of steel balls, it is difficult to ensure the consistency of product quality, and the rate of defective products is high UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a kind of wear-resistant steel ball's grading quenching heat treatment equipment, solve the problem that the existing equipment adopts relatively simple structure design, and when processing a large number of steel balls, it is difficult to ensure the consistency of product quality.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of wear-resistant steel ball's grading quenching heat treatment equipment, including base, the upper surface of the base is fixedly connected with mounting bracket, the upper surface of the mounting bracket is movably connected with connecting plate, the inside of the connecting plate is rotatably connected with fixed bolt, one side wall of the connecting plate is fixedly connected with quenching box, the upper surface of the quenching box is fixedly connected with heater, one side wall of the quenching box is fixedly connected with discharge port, the lower surface of the discharge port is provided with first blanking plate, and first blanking plate is connected with quenching box.

[0006] Preferably, the lower surface of the quenching box is fixedly connected with tempering box, a side wall of the tempering box is provided with first feeding port, the upper surface of the base is fixedly connected with cooling box, the left and right sides in the cooling box are fixedly connected with fixing frame.

[0007] Preferably, the upper surface of the fixing frame is fixedly connected with first drive motor, the inside of the fixing frame is rotatably connected with a pair of first rotation shaft, and the first rotation shaft is connected with the first drive motor, the inside of the cooling box is provided with placing box, one side wall of the placing box is fixedly connected with transport platform, the inside of the tempering box is fixedly connected with tempering plate.

[0008] Preferably, the inside of the quenching box is rotatably connected with a quenching furnace, the outer wall of the quenching furnace is rotatably connected with a first meshing gear, one side wall of the quenching box is fixedly connected with a second driving motor, one side wall of the second driving motor is rotatably connected with a second rotating shaft, one side wall of the second rotating shaft is rotatably connected with a second meshing gear, and the second meshing gear and the first meshing gear are connected with each other.

[0009] Preferably, one side wall of the quenching box is fixedly connected with a gas conveying pipe, one side wall of the gas conveying pipe is fixedly connected with a pump, one side wall of the quenching furnace is fixedly connected with a second feeding port, the left and right sides of the inner wall of the quenching box are fixedly connected with quenching plates, and the inside of the quenching plate is provided with a quenching liquid injection port.

[0010] Preferably, the outer wall of the first rotating shaft is slidably connected with a lifting plate, the upper surface of the lifting plate is fixedly connected with a mounting block, the inside of the mounting block is rotatably connected with a rotating shaft, the outer wall of the rotating shaft is rotatably connected with a connecting block, and the connecting block and the placing box are connected with each other, and the upper surface of the placing box is fixedly connected with a handle.

[0011] Beneficial effects

[0012] The utility model provides a kind of grading quenching heat treatment equipment of wear-resistant steel ball.Compared with prior art, it has the following beneficial effects:

[0013] (1) the quenching furnace in the quenching box is driven by the second rotating shaft by the second driving motor, and is rotatable by the connection of the second meshing gear and the first meshing gear, so that the quenching furnace can rotate flexibly, and the wear-resistant steel balls in the furnace can be heated more uniformly during quenching. With the quenching liquid injection port on the quenching plate, it can ensure that each steel ball can fully and uniformly contact the quenching liquid, effectively solving the problem of uneven quenching in traditional equipment, significantly improving the consistency of steel ball hardness, toughness and wear resistance, and reducing product rejection rate. The tempering plate in the tempering box provides a stable support and heating environment for steel ball tempering. In the cooling box, the first driving motor drives the first rotating shaft, and the lifting plate slidably connected to the first rotating shaft can adjust the height of the placing box, thereby flexibly controlling the cooling speed of the steel balls.

[0014] (2) through the quenching box side wall discharge port and the first lower plate below, facilitate the quenching of the steel ball after the smooth discharge, into the tempering box, placed on the surface of the handle for manual handling of steel ball, in the equipment maintenance or debugging, can be quickly placed in the cooling tank from the tank, simple operation, compared with the traditional equipment complex material conveying and handling mode, greatly reduces the labor intensity of the operator, improves the work efficiency, through the quenching furnace and quenching box through the rotating connection, the lifting plate in the cooling tank and the first rotating shaft sliding connection, etc., when the equipment fails, the maintenance personnel can quickly locate the problem parts and disassemble and repair, reduce the difficulty and time cost of maintenance and repair, improve the availability and production continuity of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a kind of grading quenching heat treatment equipment structure of wear-resistant steel ball for the embodiment of the application;

[0016] Fig. 2 It is a kind of quenching box internal structure for the embodiment of the application;

[0017] Fig. 3 It is a kind of cooling tank internal plane schematic diagram for the embodiment of the application.

[0018] In the figure: 1, base; 2, mounting frame; 3, connecting plate; 4, fixed bolt; 5, quenching box; 6, heater; 7, discharge port; 8, first lower plate; 9, tempering box; 10, first inlet; 11, cooling tank; 12, fixed frame; 13, first drive motor; 14, first rotating shaft; 15, placing box; 16, transport platform; 17, quenching furnace; 18, first meshing gear; 19, second drive motor; 20, second rotating shaft; 21, second meshing gear; 22, tempering plate; 23, air conveying pipe; 24, pump; 25, second inlet; 26, quenching plate; 27, quenching liquid injection port; 28, lifting plate; 29, mounting block; 30, rotating shaft; 31, connecting block; 32, handle. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Embodiment 1:

[0021] Please refer to Figs. 1-3As shown, the present embodiment proposes a kind of grading quenching heat treatment equipment of wear-resistant steel ball, including base 1, the upper surface of base 1 is fixedly connected with mounting bracket 2, the upper surface of mounting bracket 2 is movably connected with connecting plate 3, connecting plate 3 is rotatably connected with fixed bolt 4 in the inside, one side wall of connecting plate 3 is fixedly connected with quenching box 5, the upper surface of quenching box 5 is fixedly connected with heater 6, one side wall of quenching box 5 is fixedly connected with discharge port 7, the lower surface of discharge port 7 is provided with first discharge plate 8, and first discharge plate 8 is connected with quenching box 5, and mounting bracket 2 is stably fixed on the upper surface of base 1, provides reliable support foundation for subsequent components, ensures that the whole equipment architecture is stable, connecting plate 3 is movably connected with mounting bracket 2, cooperates with fixed bolt 4, so that the installation position of quenching box 5 has certain flexibility, when equipment debugging or adjusting process for different specifications wear-resistant steel ball, fixed bolt 4 can be loosened, the angle of connecting plate 3 is finely adjusted, and then the placement state of quenching box 5 is optimized, to ensure that the heating and quenching liquid spraying effect of steel ball in quenching process reaches the best, and the heater 6 fixedly connected on the upper surface of quenching box 5 can accurately provide stable heat source for quenching process, to ensure the accurate control of quenching temperature, and different materials and specifications of wear-resistant steel ball have different quenching temperature requirements, so that the power of heater 6 can be flexibly adjusted according to actual demand, to meet the diversified quenching process requirements, improve the consistency of product quality, and the discharge port 7 of one side wall of quenching box 5 and the first discharge plate 8 connected with it below are designed ingeniously, after quenching is completed, steel ball can pass through discharge port 7, and enter tempering box 9 smoothly and efficiently under the guidance of first discharge plate 8.

[0022] The lower surface of quenching box 5 is fixedly connected with tempering box 9, a first inlet 10 is formed in one side wall of tempering box 9, the upper surface of base 1 is fixedly connected with cooling box 11, and fixed frame 12 is fixedly connected to the left and right sides in the inside of cooling box 11, and the integrated design of quenching box 5 and tempering box 9, i.e. the lower surface of quenching box 5 is fixedly connected with tempering box 9, and the first inlet 10 is formed in one side wall of tempering box 9, constructs closely and efficiently heat treatment link, after quenching, steel ball can directly and quickly enter tempering box 9 through first inlet 10 by means of gravity and equipment structure design, which effectively reduces the heat loss of steel ball in the transfer process, ensures that steel ball can maintain appropriate initial temperature when tempering, greatly optimizes the stability and consistency of tempering process, compared with the separation of quenching and tempering link in traditional equipment, the steel ball needs to be transferred by manual or complex conveying device, not only reduces heat loss, but also reduces the error caused by human operation, improves the stability of product quality, and improves production efficiency, and the upper surface of base 1 is fixedly connected with cooling box 11, to provide a special space for steel ball cooling.

[0023] The upper surface of the fixed frame 12 is fixedly connected with a first driving motor 13, the inside of the fixed frame 12 is rotatably connected with a pair of first rotating shafts 14, the first rotating shafts 14 are connected with the first driving motor 13, the inside of the cooling box 11 is provided with a placing box 15, one side wall of the placing box 15 is fixedly connected with a conveying table 16, the inside of the tempering box 9 is fixedly connected with a tempering plate 22, the tempering plate 22 fixedly connected inside the tempering box 9 provides a stable tempering support surface for the wear-resistant steel ball, the material and structure design of the tempering plate 22 can ensure that the heat is evenly transmitted to the steel ball during the tempering process, when the steel ball enters the tempering box 9 through the first feeding port 10 below the quenching box 5 and is placed on one side wall of the tempering plate 22, thereby the steel ball is tempered.

[0024] The inside of the quenching box 5 is rotatably connected with a quenching furnace 17, the outer wall of the quenching furnace 17 is rotatably connected with a first meshing gear 18, one side wall of the quenching box 5 is fixedly connected with a second driving motor 19, one side wall of the second driving motor 19 is rotatably connected with a second rotating shaft 20, one side wall of the second rotating shaft 20 is rotatably connected with a second meshing gear 21, and the second meshing gear 21 is connected with the first meshing gear 18, and the second driving motor 19 serves as a power source and is installed on one side wall of the quenching box 5, after being started, the second driving motor 19 drives the second rotating shaft 20 to rotate, the second meshing gear 21 on the second rotating shaft 20 rotates accordingly, since the second meshing gear 21 is connected with the first meshing gear 18, and the first meshing gear 18 is rotatably connected with the outer wall of the quenching furnace 17, this makes the quenching furnace 17 can rotate inside the quenching box 5, so that the quenching furnace 17 can realize multi-angle and omnidirectional rotation, and during the quenching process, the wear-resistant steel ball is placed in the quenching furnace 17, with the rotation of the quenching furnace 17, the steel ball continuously changes position in the furnace, can evenly receive heat from the heater 6 in the quenching box 5, to ensure that each steel ball is heated uniformly.

[0025] One side wall of the quenching box 5 is fixedly connected with a gas conveying pipe 23, one side wall of the gas conveying pipe 23 is fixedly connected with a pump 24, one side wall of the quenching furnace 17 is fixedly connected with a second feeding port 25, the left and right sides of the inner wall of the quenching box 5 are fixedly connected with quenching plates 26, the inside of the quenching plate 26 is provided with a quenching liquid injection port 27, when the quenching furnace 17 rotates to expose the steel ball omnidirectionally, the quenching liquid is injected out from the quenching liquid injection port 27 at a certain pressure and angle, which can uniformly cover the surface of the steel ball, so that the quenching liquid injection port 27 can adjust the injection direction and flow according to the shape characteristics of the steel ball, to ensure that each part of the steel ball can be cooled by appropriate quenching liquid, effectively reducing the problem of internal stress concentration caused by uneven cooling, and the combination of the gas conveying pipe 23 and the pump 24 provides guarantee for the circulation and replenishment of the quenching liquid. The pump 24 can send excess heat in the quenching box 5 into the inside of the tempering plate 22 through the gas conveying pipe 23, thereby tempering the steel ball.

[0026] The outer wall of the first rotating shaft 14 is slidably connected with a lifting plate 28, the upper surface of the lifting plate 28 is fixedly connected with a mounting block 29, the inner portion of the mounting block 29 is rotatably connected with a rotating shaft 30, the outer wall of the rotating shaft 30 is rotatably connected with a connecting block 31, and the connecting block 31 is connected with the placing box 15, the upper surface of the placing box 15 is fixedly connected with a handle 32, when the first rotating shaft 14 is driven to rotate by the first driving motor 13, the outer wall thereof is slidably connected with the lifting plate 28, when the first driving motor 13 operates, the rotation of the first rotating shaft 14 can be converted into the up-and-down movement of the lifting plate 28 along the outer wall thereof, since the upper surface of the lifting plate 28 is fixedly connected with the mounting block 29, the mounting block 29 is rotatably connected with the connecting block 31 through the rotating shaft 30, and the connecting block 31 is connected with the placing box 15, this series of connection makes the placing box 15 be able to adjust the height up and down along with the movement of the lifting plate 28, when the equipment needs to be maintained, cleaned or the different specifications of the placing box 15 needs to be replaced, the operator can easily lift or put the placing box 15 into the cooling box 11 through the handle 32, and also can tilt the placing box 15 to send the steel balls into the conveying table 16.

[0027] In use, the wear-resistant steel balls to be processed are loaded into the quenching furnace 17 through the second feed port 25 on one side wall of the quenching furnace 17. The heater 6 on the upper surface of the quenching box 5 is activated to heat the internal space of the quenching box 5, causing the temperature of the quenching furnace 17 and the steel balls inside to gradually rise. The outer wall of the quenching furnace 17 is rotatably connected to the first meshing gear 18. The second drive motor 19 on one side wall of the quenching box 5 drives the second rotating shaft 20 to rotate. The second meshing gear 21 on the second rotating shaft 20 engages with the first meshing gear. The wheels 18 are interconnected, driving the quenching furnace 17 to rotate within the quenching box 5. The steel balls are heated uniformly within the rotating furnace 17, ensuring even heating. Once the steel balls reach the appropriate quenching temperature, the quenching plates 26 fixed to the left and right sides of the inner wall of the quenching box 5 begin to operate. The quenching liquid injection nozzles 27 inside the quenching plates 26 spray quenching liquid at a specific pressure and angle. The rotating furnace 17 fully exposes the steel balls to the quenching liquid, achieving rapid and uniform cooling and completing the quenching process. After quenching, the steel balls are removed from the quenching furnace. The steel balls are discharged from the outlet 7 on one side wall of the box 5 and the first feeding plate 8 below it. After discharge, the steel balls are transported to the placement box 15 in the cooling box 11 with the help of manual or mechanical assistance. Inside the cooling box 11, the first drive motor 13 on the upper surface of the fixed frame 12 drives the first rotating shaft 14 to rotate. The lifting plate 28 slidably connected to the outer wall of the first rotating shaft 14 moves up and down, thereby driving the placement box 15 to adjust its height. By precisely controlling the speed and rotation time of the first drive motor 13, the immersion depth and residence time of the placement box 15 in the coolant can be precisely adjusted, and the cooling speed of the wear-resistant steel balls can be flexibly controlled. The operator takes the placement box 15 out of the cooling box 11 through the handle 32 fixed to the upper surface of the placement box 15, and then transfers the steel balls to the tempering box 9. The steel balls enter the tempering box 9 through the first feed port 10 on one side wall of the tempering box 9 and are placed on the tempering plate 22. The tempering plate 22 evenly transfers heat to the steel balls to perform tempering treatment, eliminate quenching stress, adjust the internal structure, and improve the toughness of the steel balls.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heat treatment apparatus for the step quenching of wear resistant steel balls, characterised in that: The application relates to a quenching device, which comprises a base (1), the upper surface of the base (1) is fixedly connected with a mounting rack (2), the upper surface of the mounting rack (2) is movably connected with a connecting plate (3), the inner portion of the connecting plate (3) is rotatably connected with a fixing bolt (4), one side wall of the connecting plate (3) is fixedly connected with a quenching box (5), the upper surface of the quenching box (5) is fixedly connected with a heater (6), one side wall of the quenching box (5) is fixedly connected with a discharge port (7), the lower surface of the discharge port (7) is provided with a first discharging plate (8), and the first discharging plate (8) is connected with the quenching box (5).

2. A heat treatment apparatus for the step quenching of grinding balls according to claim 1, characterized in that: The lower surface of the quenching box (5) is fixedly connected with a tempering box (9), one side wall of the tempering box (9) is provided with a first feeding port (10), the upper surface of the base (1) is fixedly connected with a cooling box (11), and the left and right sides in the inner portion of the cooling box (11) are fixedly connected with fixing frames (12).

3. A heat treatment apparatus for the step quenching of wear resistant steel balls as claimed in claim 2, wherein: The upper surface of the fixing frame (12) is fixedly connected with a first driving motor (13), the inner portion of the fixing frame (12) is rotatably connected with a pair of first rotating shafts (14), the first rotating shafts (14) are connected with the first driving motor (13), the inner portion of the cooling box (11) is provided with a placing box (15), one side wall of the placing box (15) is fixedly connected with a conveying table (16), and the inner portion of the tempering box (9) is fixedly connected with a tempering plate (22).

4. The apparatus for grading quenching heat treatment of wear-resistant steel balls according to claim 1, characterized in that: The inner portion of the quenching box (5) is rotatably connected with a quenching furnace (17), the outer wall of the quenching furnace (17) is rotatably connected with a first meshing gear (18), one side wall of the quenching box (5) is fixedly connected with a second driving motor (19), one side wall of the second driving motor (19) is rotatably connected with a second rotating shaft (20), one side wall of the second rotating shaft (20) is rotatably connected with a second meshing gear (21), and the second meshing gear (21) is connected with the first meshing gear (18).

5. A heat treatment apparatus for the step quenching of wear resistant steel balls as claimed in claim 4, wherein: One side wall of the quenching box (5) is fixedly connected with a gas conveying pipe (23), one side wall of the gas conveying pipe (23) is fixedly connected with a pump (24), one side wall of the quenching furnace (17) is fixedly connected with a second feeding port (25), the left and right sides of the inner wall of the quenching box (5) are fixedly connected with quenching plates (26), and the inner portion of the quenching plates (26) is provided with quenching liquid injection ports (27).

6. A class quenching heat treatment apparatus for wear resistant steel balls according to claim 3, characterized in that: The outer wall of the first rotating shaft (14) is slidably connected with a lifting plate (28), the upper surface of the lifting plate (28) is fixedly connected with a mounting block (29), the inner portion of the mounting block (29) is rotatably connected with a rotating shaft (30), the outer wall of the rotating shaft (30) is rotatably connected with a connecting block (31), the connecting block (31) is connected with the placing box (15), and the upper surface of the placing box (15) is fixedly connected with a handle (32).

Images