Forged ball quenching bath

Abstract

The utility model discloses a forging ball quenching pool which is characterized in that a pool body comprises an arc-shaped groove and drainage grooves formed in the two sides of the arc-shaped groove in the length direction of the arc-shaped groove, a first drainage opening is formed in one end of the arc-shaped groove, and a second drainage opening is formed in the drainage groove close to the first drainage opening; the driving unit comprises a main shaft and a motor connected with the main shaft, and a plurality of spiral blades are arranged in the axis direction of the main shaft; the plurality of spiral blades are arranged in the arc-shaped groove along the length direction of the tank body, and each spiral blade is provided with a plurality of strip-shaped holes; a connecting plate is arranged between every two adjacent spiral blades close to the first water outlet. The motor is used for driving the main shaft to rotate around the axis of the main shaft; the drainage grooves are formed in the two sides of the arc-shaped groove, meanwhile, the water inlet pipe is arranged above the tank body, cold water sinks downwards from the upper portion of the arc-shaped groove, and the heat exchange efficiency and the quenching efficiency in the quenching tank are improved by improving the flowability of water.

Description

Technical Field

[0001] The utility model belongs to the field of steel ball heat treatment equipment, in particular to a forged ball quenching pool. Background Art

[0002] Forged steel balls are mostly large diameter steel balls with a size of φ100-φ150. They are mainly used in ball mills for crushing ore. The ore is crushed by mutual collision and friction between the steel balls and the ore. In order to improve the crushing efficiency and the durability of the steel balls, the surface of the steel balls must have sufficient hardness and wear resistance. Generally, during the production process of steel ball forging, they are quenched to improve the surface hardness of the steel balls. During the production process of forged steel balls, the blank - the steel ingot is first heated to about 1200℃ in a heating furnace, taken out for die forging, and then put into a quenching tank for quenching.

[0003] Existing forging ball quenching pools such as Figure 1 As shown, the quenching pool includes: a spiral blade shaft 2 is provided in the pool body 1, and a row of water inlets 3 are provided at the bottom of the side wall of the pool body, each water inlet 3 is aligned between two adjacent spiral blades 2, and the 4 water outlets of the quenching pool are arranged at the end of the quenching body 1. Driven by the motor 5, the spiral blade shaft rotates to push the steel balls and water from one end of the quenching pool to the other end. Due to the large diameter of the forged balls and the long quenching time required, the fluidity of the water in the existing forged ball quenching pool is poor, resulting in slow heat exchange efficiency in the quenching pool, inconsistent quenching temperature and other problems, making it difficult to control the surface hardness of the same batch of steel balls to the best, that is, the consistency of the surface hardness of different steel ball diameters is poor.

[0004] Therefore, it is necessary to improve the existing forged ball quenching pool to improve the heat exchange efficiency and quenching efficiency of the water in the quenching pool. Utility Model Content

[0005] The utility model aims to provide a forged ball quenching pool, aiming at the problem of poor fluidity of water in the existing quenching pool, and improving the heat exchange efficiency and quenching efficiency in the quenching pool.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] The forged ball quenching pool of the utility model comprises:

[0008] A pool body, the pool body comprising an arc-shaped groove and drainage grooves arranged on both sides of the arc-shaped groove along the length direction of the arc-shaped groove, one end of the arc-shaped groove is provided with a first drainage port, and the drainage groove close to the first drainage port is provided with a second drainage port;

[0009] A driving unit, the driving unit comprising: a main shaft, a plurality of spiral blades arranged along the axis direction of the main shaft, and a motor connected to the main shaft; the plurality of spiral blades are arranged in the arc-shaped groove along the length direction of the pool body, and each of the spiral blades is provided with a plurality of strip holes; a connecting plate is arranged between two adjacent spiral blades close to the first drain port; two ends of the main shaft are arranged on bearing seats at two ends of the arc-shaped groove, and the motor is used to drive the main shaft to rotate around its axis;

[0010] A water inlet pipe is mounted on the arc-shaped groove through a water inlet pipe bracket, a plurality of water inlets are arranged along the length direction of the water inlet pipe, and one water inlet is arranged between two adjacent spiral blades.

[0011] Preferably, the bottom of the drainage groove is inclined toward the second drainage outlet.

[0012] Preferably, the outer side wall of the drainage groove is higher than the outer side wall of the arc-shaped groove.

[0013] Preferably, a base support is further included, and the base support is arranged at the bottom of the pool body along the length direction of the pool body.

[0014] Preferably, the water inlet pipe bracket is arranged on the base bracket.

[0015] Preferably, a reducer is further included, and the main shaft is connected to the motor via the reducer.

[0016] The beneficial effects of the utility model are:

[0017] (1) In the forged ball quenching pool of the utility model, when the steel ball is quenched, the cold water becomes hot water after heat exchange. Since the hot water has a high temperature, its density becomes smaller due to thermal expansion and is smaller than the density of cold water, so it floats in the cold water. Drainage grooves are arranged on both sides of the arc groove, and the principle of hot water floating is utilized to make the hot water after heat exchange overflow from the drainage grooves on both sides; at the same time, the water inlet pipe is arranged above the pool body, and the cold water sinks from the upper part of the pool body to the bottom, thereby improving the heat exchange efficiency and quenching efficiency in the quenching pool by improving the fluidity of water.

[0018] (2) The forged ball quenching pool of the utility model is provided with a plurality of long strip holes on the spiral blades, which can improve the flow performance of water between two adjacent spiral blades, avoid the problem of inconsistent quenching temperature in the quenching pool, and make the surface hardness of the same batch of steel balls controlled to the best.

[0019] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By describing the exemplary embodiments of the present invention in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present invention will become more apparent. In the exemplary embodiments, the same reference numerals generally represent the same components.

[0021] Figure 1 The schematic diagram of the structure of the existing forged ball quenching pool is shown.

[0022] Figure 2 A first isometric view of a forged ball quenching pool according to an embodiment of the present invention is shown.

[0023] Figure 3 A second isometric view of a forged ball quenching pool according to an embodiment of the present invention is shown.

[0024] Figure 4 A top view of a forged ball quenching pool according to an embodiment of the utility model is shown.

[0025] Figure 5 The figure shows a schematic structural diagram of a pool body according to an embodiment of the utility model.

[0026] Figure 6 A schematic diagram of a spiral blade according to an embodiment of the utility model is shown.

[0027] Explanation of the accompanying drawings: 1. pool body; 2. spiral blade shaft; 3. water inlet; 4. drain outlet; 5. motor; 6. spiral blade; 7. water inlet; 8. water inlet pipe; 9. pool body; 10. water inlet pipe support frame; 11. bearing seat; 12. arc groove; 13. drain groove; 14. first drain outlet; 15. second drain outlet; 16. connecting plate; 17. base bracket. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0029] like Figures 2 to 6As shown, according to an embodiment of the utility model, a forged ball quenching pool includes: a pool body 9, the pool body 9 includes an arc groove 12 and drainage grooves 13 arranged on both sides of the arc groove 12 along the length direction of the arc groove 12, one end of the arc groove 12 is provided with a first drainage port 15, and the drainage groove 13 near the first drainage port 15 is provided with a second drainage port 14; a driving unit, the driving unit includes: a main shaft, a plurality of spiral blades 6 arranged along the axial direction of the main shaft, and a motor 5 connected to the main shaft; the plurality of spiral blades 6 are arranged along the pool body 1 2 is arranged in the arc groove 12 in the length direction, and each spiral blade 6 is provided with a plurality of strip holes; a connecting plate 16 is provided between two adjacent spiral blades 6 near the first drain port 15; the two ends of the main shaft are arranged on the bearing seats 11 at the two ends of the arc groove 12, and the motor 5 is used to drive the main shaft to rotate around its axis; the water inlet pipe 8, the water inlet pipe 8 is erected on the arc groove 12 through the water inlet pipe bracket 10, and a plurality of water inlets 7 are provided along the length direction of the water inlet pipe 8, and a water inlet 7 is provided between two adjacent spiral blades 6.

[0030] Specifically, the hot water floats after the steel ball exchanges heat with cold water, and the hot water overflows from both sides of the arc groove 12 to the drainage groove 13. The bottom surface of the drainage groove 13 is inclined toward the second drainage port 14, and the hot water is discharged by gravity. A connecting plate 16 is provided between the adjacent spiral blades 6 near the first drainage port 15. The main shaft drives the spiral blades 6 to rotate, pushing the steel ball to move from one end of the arc groove 12 toward the first drainage port 14. The connecting plate 16 salvages the steel ball that rolls to the end of the pool body 9 from the bottom of the arc groove 12, and transports the quenched steel ball to the next process through the guide groove (not shown) near the end of the pool body 9.

[0031] like Figure 1 As shown, the water inlet 7 of the existing quenching tank is set on the bottom side wall of the tank body 1, which is difficult to repair and weld, and there is water leakage, which affects the cleanliness of the workshop working environment. The water inlet pipe 8 of this embodiment is set above the arc groove 12, which is convenient for maintenance. The hot water after heat exchange floats up to the drainage grooves 12 on both sides and overflows, while the cold water sinks from the upper part of the arc groove 12, which strengthens the fluidity of the water between the two adjacent spiral blades 6 and improves the heat exchange efficiency and quenching efficiency in the quenching tank. Figure 6 As shown, a plurality of long holes are provided on the spiral blade 6, which can improve the flow performance of water between two adjacent spiral blades 6, avoid the problem of inconsistent quenching temperature in the quenching pool, and control the surface hardness of the same batch of steel balls to the best.

[0032] In this embodiment, the bottom of the drainage groove 13 is inclined toward the second drainage port 15 .

[0033] In this embodiment, if Figure 5As shown, the outer wall of the drainage groove 13 is higher than the outer wall of the arc groove 12, which facilitates the hot water to overflow and drain into the drainage groove 13, while preventing the hot water from overflowing to the outside of the drainage groove 13.

[0034] In this embodiment, a base bracket 17 is also included. The base bracket 17 is arranged at the bottom of the pool body 9 along the length direction of the pool body 9 to lift up the pool body 9. The water inlet pipe bracket 10 is arranged on the base bracket 17, and the base bracket 17 is used to provide support for the water inlet pipe bracket 10.

[0035] In this embodiment, a reducer (not shown) is further included. The main shaft is connected to the motor 5 through the reducer. The rotation speed of the spiral blade 6 is adjusted through the reducer, thereby adjusting the quenching time of the steel ball.

[0036] When the forged ball quenching pool of this embodiment is quenching, the forged steel balls are transported to the quenching pool through the elevator and dropped into the arc groove 12 from the front end of the pool body 9. The main shaft drives the spiral blade 6 to rotate clockwise, and the spiral blade 6 pushes the steel balls to move from the front end of the pool body 9 to the end of the pool body 9. Multiple water inlets 7 are arranged above the arc groove 12 along the length direction of the pool body 9, and a water inlet 7 is provided between each adjacent spiral blade 6. Utilizing the principle of cold water sinking, the cold water flows from the upper part of the arc groove 12 to the lower part of the arc groove 12. The hot water after the steel ball heat exchange, utilizing the principle of hot water floating, floats upward from the bottom of the arc groove 12, and overflows from both sides of the arc groove 12 into the drainage groove 13. The bottom of the drainage groove 13 is inclined toward the end of the pool body 9, and the hot water flows out from the second drainage port 14 of the drainage groove 13. The quenching process is completed when the steel ball is pushed to the end of the pool body 9 by the spiral blade 6. A connecting plate 16 is provided between two adjacent spiral blades 6 near the end of the pool body 9. The steel ball moved to the end of the pool body 9 is salvaged out of the arc groove 12 through the connecting plate 16, and the steel ball is transported to the next process through the guide groove at the end of the pool body 9.

[0037] The forged ball quenching pool of this embodiment improves the fluidity of water in the quenching pool, thereby improving the heat exchange efficiency and quenching efficiency in the quenching pool.

[0038] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A forged ball quenching pool, characterized in that: include: A pool body, the pool body comprising an arc-shaped groove and drainage grooves arranged on both sides of the arc-shaped groove along the length direction of the arc-shaped groove, one end of the arc-shaped groove is provided with a first drainage port, and the drainage groove close to the first drainage port is provided with a second drainage port; A driving unit, the driving unit comprising: a main shaft, a plurality of spiral blades arranged along the axis direction of the main shaft, and a motor connected to the main shaft; the plurality of spiral blades are arranged in the arc-shaped groove along the length direction of the pool body, and each of the spiral blades is provided with a plurality of strip holes; a connecting plate is arranged between two adjacent spiral blades close to the first drain port; two ends of the main shaft are arranged on bearing seats at two ends of the arc-shaped groove, and the motor is used to drive the main shaft to rotate around its axis; A water inlet pipe is mounted on the arc-shaped groove through a water inlet pipe bracket, a plurality of water inlets are arranged along the length direction of the water inlet pipe, and one water inlet is arranged between two adjacent spiral blades.

2. The forged ball quenching pool according to claim 1, characterized in that: The bottom of the drainage groove is inclined toward the second drainage port.

3. The forged ball quenching pool according to claim 1, characterized in that: The outer side wall of the drainage groove is higher than the outer side wall of the arc-shaped groove.

4. The forged ball quenching pool according to claim 1, characterized in that: It also includes a base support, which is arranged at the bottom of the pool body along the length direction of the pool body.

5. The forged ball quenching pool according to claim 4, characterized in that: The water inlet pipe bracket is arranged on the base bracket.

6. The forged ball quenching pool according to claim 1, characterized in that: A reducer is also included, and the main shaft is connected to the motor through the reducer.

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