Heat treatment device for bearing production

Abstract

The heat treatment device for bearing production comprises a heat treatment furnace and a quenching assembly, the quenching assembly comprises a quenching water tank and a circulating water tank, the circulating water tank is fixedly installed at the bottom end of the heat treatment furnace, and the top of the front face of the circulating water tank is fixedly connected with a water outlet pipe. A connecting water pipe is fixedly mounted at one end of the water outlet pipe, a positioning clamping plate is fixedly mounted at the bottom end of the connecting water pipe, and the positioning clamping plate is fixedly mounted at the top end of the quenching water tank; and a mounting frame is fixedly mounted on the back surface of the quenching water tank. The bearing steel balls are borne through the heating guide rail, the heated bearing steel balls rapidly fall down through the gravity of the bearing steel balls, the bearing steel balls are completely heated in the heat treatment furnace, the heating speed is high, the heating effect is good, constant-temperature storage can be achieved, and the service life of the bearing steel balls is prolonged. The organization structure of the bearing steel balls can be effectively optimized, and the heat treatment effect of the bearing steel balls is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment devices, in particular to a heat treatment device for bearing production. Background Art

[0002] In the prior art, bearings are an important component in contemporary mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Therefore, during the production process of the bearing, the outer ring, inner ring and rotor of the bearing need to be heat treated to improve its overall hardness, wear resistance, corrosion resistance, etc.

[0003] After searching, the Chinese patent application number 202111556683.5 discloses a steel shot heat treatment device for ball bearing production, including a shell, an observation window, a heating coil, a water tank, a blanking plate, a support assembly and a salvage assembly. An observation window is provided on the right side of the shell, a heating coil is provided in the middle of the shell, a water tank is provided on one side of the shell, a blanking plate is provided on the lower side of the heating coil, a support assembly is provided on the shell, and a salvage assembly is provided in the water tank; the support assembly includes a first guide rod, a first movable frame, a storage rack, a hand pull rod, a first spring, a first contact rod, a second guide rod, a first movable frame, a storage rack, a hand pull rod, a first spring, a first contact rod, a second guide rod, a first movable frame, a storage rack, a hand pull rod, a first spring, a first contact rod, a second guide rod, a first movable frame, a storage rack, a hand pull rod, a first Two movable frames, a second spring and a second contact rod, a first guide rod is connected to one side of the blanking plate, two first movable frames are slidably provided on the first guide rod, a storage rack is provided on the inner side of the first movable frame, a hand pull rod is provided on the right side of the first movable frame, a first spring is connected between the first movable frames, the first spring is sleeved on the first guide rod, a first contact rod is provided on one side of the first movable frame, a second guide rod is provided on one side of the bottom of the blanking plate, a second movable frame is slidably provided on the second guide rod, a second spring is connected between the second movable frame and the second guide rod, and a second contact rod is symmetrically provided on the top of the second movable frame.

[0004] The above patent has the following shortcomings: the overall structure of the device is relatively complex. Although the heating ring and other structures can heat the steel balls, the steel balls are solid structures and their complete heating speed is slow. It is not convenient to effectively heat the steel balls only by the unprotected heating rings set in the device, which reduces the heat treatment effect of the steel balls. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a heat treatment device for bearing production.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A heat treatment device for bearing production, comprising: a heat treatment furnace and a quenching assembly, the quenching assembly comprising a quenching water tank and a circulating water tank, the circulating water tank is fixedly installed at the bottom end of the heat treatment furnace, and a water outlet pipe is fixedly connected to the front top of the circulating water tank, one end of the water outlet pipe is fixedly installed with a connecting water pipe, the bottom end of the connecting water pipe is fixedly installed with a positioning card, and the positioning card is fixedly installed on the top of the quenching water tank; a mounting frame is fixedly installed on the back of the quenching water tank, an electric telescopic rod is fixedly installed inside the mounting frame, a feeding pipe is fixedly installed on the top of the electric telescopic rod, the upper part of the feeding pipe is arranged inside the heat treatment furnace, and a cooling guide rail is slidably sleeved on the outside of the bottom end of the feeding pipe; a return water tank is fixedly connected to the back of the quenching water tank, a pumping connecting pipe is fixedly installed at the bottom end of the return water tank, a water pump is fixedly installed on the top of the water pumping connecting pipe, and the water pump is fixedly installed on the bottom of one side of the circulating water tank.

[0008] As a further solution of the utility model: a heating guide rail is fixedly installed inside the heat treatment furnace, and a steel ball feeding hopper is fixedly installed on the top end of the heating guide rail.

[0009] As a further solution of the utility model: a discharge pipe is fixedly connected to the bottom end of the heating guide rail, a limit baffle is provided at one end of the discharge pipe, and the limit baffle is fixedly connected to the discharge pipe.

[0010] As a further solution of the utility model: the bottom end of the quenching water tank is fixedly connected with a second down pipe, and the bottom end of the second down pipe is fixedly installed with a drainage connecting pipe.

[0011] As a further solution of the utility model: a control butterfly valve is fixedly installed at one end of the drainage connecting pipe, and the control butterfly valve is fixedly connected to the water pumping connecting pipe.

[0012] As a further solution of the utility model: a positioning sleeve is fixedly connected to the top of one end of the inner cavity of the quenching water tank, and the top of the cooling guide rail is fixedly installed inside the positioning sleeve.

[0013] As a further solution of the utility model: the cooling rail passes through the return water tank and extends outward, and an overflow port is provided at the upper part of the connection between the quenching water tank and the return water tank.

[0014] Compared with the prior art, the utility model provides a heat treatment device for bearing production, which has the following beneficial effects:

[0015] 1. The heat treatment device for bearing production carries the bearing steel balls through the heating guide rails, and uses the gravity of the bearing steel balls themselves to make the heated bearing steel balls fall quickly. The bearing steel balls are completely heated inside the heat treatment furnace, with fast heating speed and good effect. They can also be kept at a constant temperature, ensuring that the organizational structure of the bearing steel balls themselves can be effectively optimized and improving the heat treatment effect of the bearing steel balls.

[0016] 2. The heat treatment device for bearing production can quickly cool down the heated bearing steel balls through circulating low-temperature water flow. The temperature of the circulating water flow can be kept relatively constant to ensure the quenching effect of the bearing steel balls.

[0017] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall assembly of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the heat treatment furnace and the assembly structure of the quenching component of the utility model;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of a partial cross-sectional structure;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0022] In the figure: 1. heat treatment furnace; 2. steel ball feed hopper; 3. quenching water tank; 4. heating guide rail; 5. discharge pipe; 6. mounting frame; 7. electric telescopic rod; 8. lifting connection seat; 9. discharge pipe; 10. limit baffle; 11. circulating water tank; 12. semiconductor refrigerator; 13. water outlet pipe; 14. connecting water pipe; 15. positioning card plate; 16. water inlet pipe; 17. water pump; 18. water pumping connecting pipe; 19. return water tank; 20. control butterfly valve; 21. drainage connecting pipe; 22. downcomer 1; 23. downcomer 2; 24. positioning sleeve; 25. cooling guide rail; 26. overflow port. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] A heat treatment device for bearing production, such as Figures 1 to 4As shown, it includes: a heat treatment furnace 1 and a quenching assembly. A plurality of supporting legs are fixedly installed at equal intervals on the bottom end of the heat treatment furnace 1, and a steel ball feeding hopper 2 is fixedly installed on the top end of the heat treatment furnace 1 to introduce bearing steel balls into the heat treatment furnace 1 for heating.

[0025] The bottom end of the steel ball feed hopper 2 is fixedly connected to a heating guide rail 4, which is fixedly installed inside the heat treatment furnace 1 to introduce the steel balls and allow the steel balls to be heated by the heat treatment furnace 1; the bottom end of the heating guide rail 4 is fixedly connected to a discharge pipe 5 to stably discharge the heated steel balls.

[0026] The heating guide rail 4 provided in the present application is composed of three spiral rods with the same pitch, and the steel balls roll and fall inside the three spiral rods; the three spiral rods can not only make the steel balls fall along a fixed track, but also prevent the steel balls from falling off the heating guide rail 4.

[0027] The quenching assembly includes a quenching water tank 3 and a circulating water tank 11. A return water tank 19 is integrally formed on the back of the quenching water tank 3. The depth of the return water tank 19 is greater than that of the quenching water tank 3, and a plurality of support legs are fixedly installed at the bottom ends of the return water tank 19 and the quenching water tank 3 at equal distances.

[0028] A positioning sleeve 24 is fixedly connected to the top of the inner cavity of the quenching water tank 3, and a cooling rail 25 is fixedly installed inside the positioning sleeve 24. One end of the cooling rail 25 passes through the quenching water tank 3 and the return water tank 19 and extends outward.

[0029] An overflow port 26 is provided at the connection between the quenching water tank 3 and the return water tank 19 , and the overflow port 26 is arranged above the cooling guide rail 25 .

[0030] A mounting frame 6 is fixedly installed on the back of the quenching water tank 3, an electric telescopic rod 7 is fixedly installed inside the mounting frame 6, a lifting connection seat 8 is fixedly installed on the top of the electric telescopic rod 7, and a feeding pipe 9 is fixedly installed inside the lifting connection seat 8.

[0031] The upper portion of the feed pipe 9 is arranged inside the heat treatment furnace 1 and is slidably connected to the furnace body of the heat treatment furnace 1; Figure 4 As shown, the top end of the feed pipe 9 is fixedly connected to a limit baffle 10, and the limit baffle 10 fits with the end of the discharge pipe 5 to prevent the bearing steel balls from falling during the heating process of the bearing steel balls.

[0032] The bottom end of the feed pipe 9 is slidably mounted on the top of the inner cavity of the cooling rail 25, so that the steel ball can directly enter the interior of the cooling rail 25; Figure 4 As shown, the cooling rail 25 is composed of three steel columns, which facilitates the heated steel balls to contact with cold water and cool down quickly.

[0033] The circulating water tank 11 is fixedly installed at the bottom end of the heat treatment furnace 1, and a semiconductor refrigerator 12 is fixedly installed on the front of the circulating water tank 11. The heat absorption end of the semiconductor refrigerator 12 is inside the circulating water tank 11 to cool the water flow; a partition is integrally formed inside the circulating water tank 11 to divide the inner cavity of the circulating water tank 11 into two layers, upper and lower, so that the water flow circulates and fully contacts the heat absorption end of the semiconductor refrigerator 12.

[0034] A water outlet pipe 13 is fixedly connected to the top of the front of the circulating water tank 11, a connecting water pipe 14 is fixedly installed at one end of the water outlet pipe 13, a positioning clamp 15 is fixedly installed at the bottom end of the connecting water pipe 14, the positioning clamp 15 is fixedly installed on the top of the quenching water tank 3, and the water outlet of the connecting water pipe 14 is arranged above the cooling guide rail 25 to directly flush the cooling guide rail 25.

[0035] A water inlet pipe 16 is fixedly connected to the bottom of one end of the circulating water tank 11 close to the water outlet pipe 13 , a water pump 17 is fixedly installed at the end of the water inlet pipe 16 , and a water pumping connecting pipe 18 is fixedly installed at one end of the water pump 17 .

[0036] The end of the water pumping connecting pipe 18 away from the water pump 17 is provided with two interfaces, one of which is fixedly installed with a downpipe 22, and the downpipe 22 is fixedly connected to the bottom end of the return water tank 19.

[0037] A control butterfly valve 20 is fixedly installed on another interface of the pumping connecting pipe 18, a drainage connecting pipe 21 is fixedly installed on one end of the control butterfly valve 20, a downpipe 23 is fixedly installed on the top of the drainage connecting pipe 21, and the downpipe 23 is fixedly connected to the bottom end of the quenching water tank 3.

[0038] Working principle:

[0039] Please refer to Figures 1 to 4 , assemble the device as shown in the figure;

[0040] When the device is in use, the bearing steel balls are first introduced into the interior of the heating guide rail 4 through the steel ball feed hopper 2, and then the heat treatment furnace 1 is started to heat the bearing steel balls, so that the temperature of the bearing steel balls is quickly raised to the required quenching temperature, and the heat preservation treatment is performed; after the heating and heat preservation treatment of the bearing steel balls are completed, the electric telescopic rod 7 is started, and the electric telescopic rod 7 drives the discharge pipe 9 to rise through the lifting connection seat 8, so that the discharge pipe 9 is connected with the discharge pipe 5, and the bearing steel balls inside the heating guide rail 4 roll down to the inside of the discharge pipe 9, and then enter the inside of the cooling guide rail 25, and the bearing steel balls pass through the quenching water tank 3 and the return water tank 19, are collected centrally; in the above-mentioned bearing steel ball heating process, the semiconductor refrigerator 12 and the water pump 17 are started synchronously to make the water flow inside the circulating water tank 11 and the quenching water tank 3 circulate; the water flows into the connecting water pipe 14 through the outlet pipe 13, and then sprays to the cooling guide rail 25, and enters the quenching water tank 3, and then flows into the return water tank 19, and flows back to the circulating water tank 11 through the water pump 17 and the water pumping connecting pipe 18, and after being cooled again by the semiconductor refrigerator 12, it re-enters the quenching water tank 3 to quickly cool the bearing steel balls.

[0041] Note: In the above process, the cooling rail 25 passes through the body of the quenching water tank 3, and the cooling water will flow into the return water tank 19 through this place. However, the water outflow from this place is one-fourth of the water introduced by the connecting water pipe 14, so the cooling water can completely submerge the middle and lower part of the cooling rail 25 to ensure the cooling effect of the bearing steel balls; and the water flowing out from this place will push the bearing steel balls to move along the direction of the cooling rail 25 to avoid the accumulation of the bearing steel balls inside the cooling rail 25.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat treatment device for bearing production, characterized in that: include: A heat treatment furnace (1) and a quenching assembly, wherein the quenching assembly comprises a quenching water tank (3) and a circulating water tank (11), wherein the circulating water tank (11) is fixedly mounted at the bottom end of the heat treatment furnace (1), and a water outlet pipe (13) is fixedly connected to the top of the front face of the circulating water tank (11), a connecting water pipe (14) is fixedly mounted at one end of the water outlet pipe (13), a positioning card plate (15) is fixedly mounted at the bottom end of the connecting water pipe (14), and the positioning card plate (15) is fixedly mounted at the top end of the quenching water tank (3); a mounting frame (6) is fixedly mounted on the back of the quenching water tank (3), and the mounting frame (6) 6), an electric telescopic rod (7) is fixedly installed inside, a feed pipe (9) is fixedly installed on the top of the electric telescopic rod (7), the upper part of the feed pipe (9) is arranged inside the heat treatment furnace (1), and the bottom end of the feed pipe (9) is externally slidably sleeved with a cooling rail (25); the back of the quenching water tank (3) is fixedly connected to a return water tank (19), the bottom end of the return water tank (19) is fixedly installed with a pumping connection pipe (18), the top end of the pumping connection pipe (18) is fixedly installed with a pumping pump (17), and the pumping pump (17) is fixedly installed at the bottom of one side of the circulating water tank (11).

2. A heat treatment device for bearing production according to claim 1, characterized in that: A heating guide rail (4) is fixedly installed inside the heat treatment furnace (1), and a steel ball feeding hopper (2) is fixedly installed on the top of the heating guide rail (4).

3. A heat treatment device for bearing production according to claim 2, characterized in that: The bottom end of the heating guide rail (4) is fixedly connected to a discharge pipe (5), one end of the discharge pipe (5) is provided with a limit baffle (10), and the limit baffle (10) is fixedly connected to the discharge pipe (9).

4. A heat treatment device for bearing production according to claim 1, characterized in that: The bottom end of the quenching water tank (3) is fixedly connected to a second downpipe (23), and the bottom end of the second downpipe (23) is fixedly installed with a drainage connecting pipe (21).

5. A heat treatment device for bearing production according to claim 4, characterized in that: A control butterfly valve (20) is fixedly mounted on one end of the drainage connection pipe (21), and the control butterfly valve (20) is fixedly connected to the water pumping connection pipe (18).

6. A heat treatment device for bearing production according to claim 1, characterized in that: A positioning sleeve (24) is fixedly connected to the top of one end of the inner cavity of the quenching water tank (3), and the top of the cooling guide rail (25) is fixedly installed inside the positioning sleeve (24).

7. A heat treatment device for bearing production according to claim 1, characterized in that: The cooling rail (25) penetrates the return water tank (19) and extends outwards, and an overflow port (26) is provided at the upper part of the connection between the quenching water tank (3) and the return water tank (19).

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