CN216005938U

CN216005938U - Quenching equipment for producing wear-resistant steel balls

Info

Publication number: CN216005938U
Application number: CN202121714628.XU
Authority: CN
Inventors: 张金龙; 周根林; 骆江辉
Original assignee: Anhui Ruitai New Material Technology Co ltd
Current assignee: Anhui Ruitai New Material Technology Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-03-11
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses quenching equipment for producing wear-resistant steel balls, which comprises a quenching bath, a charging barrel, a conveying mechanism and a quenching liquid injection system, wherein the quenching bath is used for storing quenching liquid; the charging barrel is obliquely fixed in the quenching tank relative to the horizontal direction, the upper part of the oblique lower end of the charging barrel is provided with a feeding hopper, the lower part of the oblique upper end of the charging barrel is provided with a discharging port, and the side wall of the charging barrel is provided with a water permeable hole; the conveying mechanism comprises a motor and a spiral conveying shaft, the spiral conveying shaft is rotatably arranged in the charging barrel, and an output shaft of the motor is connected with the spiral conveying shaft; the quenching liquid injection system comprises a first water pump, a water pipe, annular pipes and nozzles, wherein the annular pipes are sleeved on the outer side of the charging barrel and are distributed at intervals along the axial direction of the charging barrel, the annular pipes are communicated with the side wall of the charging barrel through the nozzles, and a water outlet of the first water pump is communicated with each annular pipe through the water pipe. The quenching equipment for producing the wear-resistant steel ball sprays column flow quenching liquid through the nozzle to be fully contacted with the steel ball, so that the quenching is more uniform, and the quenching efficiency can be improved.

Description

Quenching equipment for producing wear-resistant steel balls

Technical Field

The utility model relates to the technical field of steel ball quenching, in particular to quenching equipment for producing wear-resistant steel balls.

Background

The steel ball is used as a necessary product for crushing and grinding, and is an indispensable link in the industries of mines, cement, ball milling, coal grinding and the like. In nearly a century, the traditional steel ball manufacturing mainly comprises steel ball casting and steel ball forging, and has the disadvantages of poor efficiency, high labor intensity and uneven quality; in recent years, with the development of the technology, the application of the rotary cutting and roll forging technology of the steel ball is used for continuously rotary cutting a high-temperature round steel bar into the steel ball. The steel ball production line is also an intelligent steel ball production line which is established on the matching of the steel ball rotary cutting roll forging technology and the automatic control technology.

The skew rolling steel ball has the advantages of high production efficiency, material saving and the like, and is suitable for large-scale batch production. The hardness and the wear resistance of the rolled steel balls need to be improved by quenching a large batch of rolled steel balls, and the traditional steel ball quenching device has the defects of nonuniform quenching, low efficiency and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the background technology, the utility model provides quenching equipment for producing wear-resistant steel balls.

The utility model provides quenching equipment for producing wear-resistant steel balls, which comprises:

the quenching tank is used for storing quenching liquid;

the charging barrel is obliquely fixed in the quenching tank relative to the horizontal direction, the upper part of the oblique lower end of the charging barrel is provided with a feeding hopper, the lower part of the oblique upper end of the charging barrel is provided with a discharging port, and the side wall of the charging barrel is provided with a water permeable hole;

the conveying mechanism comprises a motor and a spiral conveying shaft, the spiral conveying shaft is rotatably arranged in the charging barrel, and an output shaft of the motor is connected with the spiral conveying shaft;

the quenching liquid injection system comprises a first water pump, water pipes, annular pipes and nozzles, wherein the annular pipes are sleeved on the outer side of the charging barrel and are distributed at intervals along the axial direction of the charging barrel, the nozzles are arranged on the inner side of the annular pipes in a circumferential array mode and are communicated with the side wall of the charging barrel through the nozzles, and water outlets of the first water pump are communicated with the annular pipes through the water pipes respectively.

Preferably, the joints of the water pipes and the annular pipes are provided with electromagnetic valves.

Preferably, a partition plate is arranged in the quenching bath, the partition plate divides the inner cavity of the quenching bath into a quenching chamber and a cooling chamber, and a heat exchanger is arranged in the cooling chamber.

Preferably, the water suction port of the first water pump communicates with the cooling chamber.

Preferably, the quenching device further comprises a second water pump, the second water pump is respectively communicated with the quenching chamber and the cooling chamber, and the second water pump is used for pumping and discharging the quenching liquid in the quenching chamber to the cooling chamber.

Preferably, the barrel is inclined at an angle of from 5 ° to 20 ° to the horizontal.

In the utility model, the quenching equipment for producing the wear-resistant steel ball carries out quenching treatment while conveying the steel ball in the charging barrel, and in the quenching process, the nozzles arranged around the charging barrel spray column flow quenching liquid to fully contact with the steel ball, so that the quenching is more uniform, and meanwhile, the contact amount of the quenching liquid in the unit time of the steel ball is increased, and the quenching efficiency can be improved.

Drawings

FIG. 1 is a schematic structural diagram of a quenching apparatus for producing a wear-resistant steel ball proposed in the embodiment;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a cross-sectional view of a connection structure of a water pipe, an annular pipe and a nozzle.

Detailed Description

Referring to fig. 1-3, the quenching equipment for producing the wear-resistant steel balls comprises a quenching bath 1, a charging barrel 2, a conveying mechanism and a quenching liquid injection system.

Wherein, quenching bath 1 is used for storing the quenching liquid, and feed cylinder 2 passes through the support and fixes in quenching bath 1 for the horizontal direction slope, and the upper portion of the slope lower extreme of feed cylinder 2 is equipped with feeder hopper 3, and the lower part of the slope upper end of feed cylinder 2 is equipped with discharge gate 4, and discharge gate 4 extends to the quenching bath 1 outside, and the feed cylinder 2 lateral wall is equipped with the hole of permeating water 5, and the hole of permeating water 5 makes and can immerse the quenching liquid in the feed cylinder 2.

The conveying mechanism comprises a motor 6 and a spiral conveying shaft 7; the spiral conveying shaft 7 is rotatably arranged in the charging barrel 2, and an output shaft of the motor 6 is connected with the spiral conveying shaft 7. The motor 6 drives the spiral conveying shaft 7 to rotate, so that the wear-resistant steel balls in the charging barrel 2 can be conveyed from the feeding hopper 3 to the discharging port 4.

In this embodiment, in order to ensure that the screw conveyor shaft 7 can perform at least an effective conveying function, or a more efficient conveying function, the preferable angle of inclination of the barrel 2 with respect to the horizontal direction is 5 ° to 20 °, as long as the barrel 2 can be mostly immersed in the quenching liquid in the quenching bath 1.

The quenching liquid injection system comprises a first water pump 8, a water pipe 9, an annular pipe 10 and a nozzle 11; the annular pipe 10 is established in the feed cylinder 2 outside, and annular pipe 10 is along 2 axial interval distributions of feed cylinder, and nozzle 11 is the circumference array and arranges at annular pipe 10 inboard to annular pipe 10 passes through

nozzle

11 and 2 lateral walls intercommunications of feed cylinder, and the delivery port of first water pump 8 leads to pipe 9 and communicates with each annular pipe 10 respectively.

According to the quenching equipment for producing the wear-resistant steel balls, during quenching, the high-temperature wear-resistant steel balls enter the material barrel 2 from the feeding hopper 3 and are in contact with quenching liquid, the motor 6 drives the spiral conveying shaft 7 to rotate so that the wear-resistant steel balls move towards the direction of the discharge port 4, the first water pump 8 sprays columnar flow quenching liquid through the nozzle 11 in the moving process of the steel balls, and the columnar flow quenching liquid is sprayed on the surfaces of the wear-resistant steel balls, so that quenching can be more uniform, meanwhile, the amount of the quenching liquid in contact with the steel balls in unit time is increased, and the quenching efficiency can be improved.

The jet column flow quenching liquid improves the quenching time of the wear-resistant steel ball, which is required by the wear-resistant steel ball, so the conveying speed of the conveying mechanism can be correspondingly increased, the time of the whole quenching process can be shortened, and the production efficiency can be improved.

In a further embodiment, the connection of the water pipe 9 to each annular pipe 10 is provided with a solenoid valve 12. The electromagnetic valve 12 can be selectively opened or closed, so that the number of the nozzles 11 which are opened during quenching can be controlled, and the final temperature reached after the wear-resistant steel ball is quenched can be controlled under the condition that the conveying speed of the conveying mechanism is kept unchanged.

In a further embodiment, a partition plate 13 is arranged inside the quenching bath 1, the partition plate 13 divides the inner cavity of the quenching bath 1 into a quenching chamber 101 and a cooling chamber 102, and a heat exchanger 14 is arranged in the cooling chamber 102. The heat exchanger 14 is used for being communicated with an external cooling tower system, and the cooling tower enables the heat exchanger 14 to continuously take away the heat of the quenching liquid in the quenching bath 1 by injecting circulating cold water into the heat exchanger 14, so that the quenching liquid is ensured to have stable and higher quenching efficiency.

In this example, the water suction port of the first water pump 8 communicates with the cooling chamber 102. The quenching liquid in the cooling chamber 102 after heat exchange cooling can be pumped out by the first water pump 8, so that the columnar flow quenching liquid sprayed from the nozzle 11 is always kept at a low temperature, and the quenching efficiency can be further improved.

In some embodiments, the quenching apparatus further includes a second water pump 15, the second water pump 15 is respectively communicated with the quenching chamber 101 and the cooling chamber 102, and the second water pump 15 is used for pumping the quenching liquid in the quenching chamber 101 to the cooling chamber 102.

The second water pump 15 can pump the high-temperature quenching liquid in the quenching chamber 101 into the cooling chamber 102 for heat exchange cooling, so that the cooling efficiency of the quenching liquid is improved, and meanwhile, the second water pump 15 and the first water pump 8 keep the same efficiency in working, so that the quenching liquid can circularly flow between the quenching chamber 101 and the cooling chamber 102, and the quenching efficiency is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The quenching equipment for producing the wear-resistant steel balls is characterized by comprising:

the quenching tank (1), the quenching tank (1) is used for storing quenching liquid;

the quenching device comprises a charging barrel (2), wherein the charging barrel (2) is obliquely fixed in a quenching bath (1) relative to the horizontal direction, a feeding hopper (3) is arranged at the upper part of the oblique lower end of the charging barrel (2), a discharging port (4) is arranged at the lower part of the oblique upper end of the charging barrel (2), and water permeable holes (5) are formed in the side wall of the charging barrel (2);

the conveying mechanism comprises a motor (6) and a spiral conveying shaft (7), the spiral conveying shaft (7) is rotatably arranged in the charging barrel (2), and an output shaft of the motor (6) is connected with the spiral conveying shaft (7);

quenching liquid injection system, quenching liquid injection system includes first water pump (8), water pipe (9), ring pipe (10), nozzle (11), ring pipe (10) cover is established in feed cylinder (2) outside, ring pipe (10) are along feed cylinder (2) axial interval distribution, nozzle (11) are the circumference array and arrange at ring pipe (10) inboard, and ring pipe (10) are through nozzle (11) and feed cylinder (2) lateral wall intercommunication, the delivery port of first water pump (8) passes through water pipe (9) respectively with each ring pipe (10) intercommunication.

2. The quenching equipment for producing the wear-resistant steel ball as claimed in claim 1, wherein the joints of the water pipes (9) and the annular pipes (10) are provided with electromagnetic valves (12).

3. The quenching equipment for producing the wear-resistant steel balls as claimed in claim 1, wherein a partition plate (13) is arranged inside the quenching tank (1), the partition plate (13) divides the inner cavity of the quenching tank (1) into a quenching chamber (101) and a cooling chamber (102), and a heat exchanger (14) is arranged in the cooling chamber (102).

4. The quenching apparatus for producing a wear-resistant steel ball as claimed in claim 2, wherein the water suction port of the first water pump (8) is communicated with the cooling chamber (102).

5. The quenching equipment for producing the wear-resistant steel balls as claimed in claim 3, wherein the quenching equipment further comprises a second water pump (15), the second water pump (15) is respectively communicated with the quenching chamber (101) and the cooling chamber (102), and the second water pump (15) is used for pumping the quenching liquid in the quenching chamber (101) to the cooling chamber (102).

6. Quenching installation for the production of wear resistant steel balls according to any of claims 1-5, characterised in that the angle of inclination of the barrel (2) with respect to the horizontal is between 5 ° and 20 °.