CN113512640B

CN113512640B - Heat treatment production line of bearing part

Info

Publication number: CN113512640B
Application number: CN202110785295.8A
Authority: CN
Inventors: 赵志高; 王明舟; 陈帅英; 郭凤华
Original assignee: Zhejiang Xcc Group Co ltd
Current assignee: Zhejiang Xcc Group Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-02-25
Anticipated expiration: 2041-07-12
Also published as: CN113512640A

Abstract

The invention discloses a heat treatment production line of a bearing part, which comprises a quenching line and a tempering line, wherein a feeding transition material table group, a front cleaning device, a quenching heating furnace, a salt bath quenching device and a quenching post-air cooling cleaning system are sequentially and linearly arranged on the quenching line from left to right, a cold cleaning device, a draining chamber, a drying chamber, a tempering furnace, a tempering post-air cooling device and a discharging transition material table group are sequentially and linearly arranged on the tempering line from right to left, a first track group is arranged on the left side ground of the quenching line and the tempering line, a second track group is arranged on the right side ground of the quenching line and the tempering line, a lifting conveying material table is respectively arranged on the first track group and the second track group, the heat treatment production line is specially designed and arranged according to a heat treatment process of the bearing part, has reasonable layout and small floor area, is divided into two quenching lines and tempering lines, and can complete the whole heat treatment process of the bearing part by one-time circulation, the invention has the functions of cleaning, drying and the like, and the bearing part has high heat treatment efficiency and stable heat treatment quality.

Description

Heat treatment production line of bearing part

Technical Field

The invention relates to the technical field of heat treatment processing, in particular to a heat treatment production line of a bearing component.

Background

The bearing is a common rotary part in modern mechanical equipment, the bearing steel ring is an important component of the bearing, the metal performance of the bearing steel ring needs to be changed through a series of heat treatment operations, and the use requirement of the bearing is met.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a heat treatment production line of a bearing component.

In order to achieve the purpose, the invention adopts the following technical scheme:

a heat treatment production line of bearing components comprises a quenching line and a tempering line, wherein the quenching line and the tempering line are arranged in parallel, the quenching line is sequentially and linearly distributed with a feeding transition material table group, a front cleaning device, a quenching heating furnace, a salt bath quenching device and a quenching rear air cooling cleaning system from left to right, the tempering line is sequentially and linearly distributed with a cold cleaning device, a draining chamber, a drying chamber, a tempering furnace, a tempering rear air cooling device and a discharging transition material table group from right to left, the left sides of the quenching line and the tempering line are provided with a first rail group on the ground, the right sides of the quenching line and the tempering line are provided with a second rail group on the ground, the first rail group and the second rail group both comprise two parallel walking rails, and a lifting conveying material table is respectively arranged on the first rail group and the second rail group.

The feeding transition material platform set comprises a plurality of fixed material platforms, the fixed material platforms are arranged along a straight line in a clinging manner, roller rod transmission belts are installed on the fixed material platforms, the front cleaning device comprises an immersion chamber, a spray chamber, a rinsing chamber and an air drying area, the immersion chamber, the spray chamber, the rinsing chamber and the air drying area are sequentially arranged from left to right, a cleaning lifting mechanism is installed in the immersion chamber, a cold air chamber and two hot air chambers are arranged in the air drying area from left to right, the immersion chamber, the spray chamber, the rinsing chamber and the air drying area are communicated with each other, lifting sealing door mechanisms are installed at the inlet position of the immersion chamber, the inlet and outlet positions of the cold air chamber and the two hot air chambers, the cleaning lifting mechanism comprises a cleaning lifting rail, a cleaning lifting material rack and a cleaning lifting cylinder, and the two cleaning lifting rails are installed on the inner side wall of the immersion chamber, the two cleaning lifting rails are arranged in parallel, a cleaning slide seat is mounted on the side wall of the cleaning lifting rack, the cleaning lifting rack is slidably mounted on the two cleaning lifting rails through the cleaning slide seat, a roller rod transmission belt is mounted in the cleaning lifting rack, a cleaning support is connected to the upper end of the cleaning lifting rack, a cleaning lifting cylinder is mounted at the top of the soaking chamber, the piston rod end of the cleaning lifting cylinder extends into the soaking chamber and is connected with the cleaning support, the cleaning lifting cylinder can drive the cleaning lifting rack to move up and down, an ultrasonic generator is mounted at the indoor bottom of the soaking chamber, fixed feeding frames are mounted in the spraying chamber and the rinsing chamber, the roller rod transmission belt is also mounted on the fixed feeding frames, two spraying mechanisms are respectively mounted in the spraying chamber and the rinsing chamber, and one spraying mechanism is mounted above the fixed feeding frames, the other spraying mechanism is arranged below the fixed feeding frame, a plurality of spraying pipes are arranged on the spraying mechanism, a water collecting area is arranged in the spraying chamber, a water collecting pore plate is obliquely arranged in the spraying chamber, the water collecting pore plate is arranged above the water collecting area, the rinsing chamber is communicated with a soaking chamber pipeline, the fixed feeding frame is also arranged in the cold air chamber and the two hot air chambers, a plurality of cold air pipes are arranged in the cold air chamber, the plurality of cold air pipes are arranged above the fixed feeding frame, a hot air fan is arranged at the top of the hot air chamber, the cold air chamber is communicated with the lower parts of the two hot air chambers to form the water collecting area, the water collecting pore plates are also obliquely arranged below the cold air chamber and the two hot air chambers, the lifting sealing door mechanism comprises an air cylinder mounting frame and a sealing door air cylinder, the sealing door air cylinder is arranged on the air cylinder mounting frame, and the sealing door air cylinder is vertically and downwards mounted, and the piston rod end of the sealing door cylinder is connected with a lifting sealing door.

The quenching heating furnace comprises a vacuum air exchange chamber, a transition chamber, a preheating chamber, a heating chamber and a rear air exchange chamber, wherein the vacuum air exchange chamber, the transition chamber, the preheating chamber, the heating chamber and the rear air exchange chamber are sequentially arranged from left to right, heating pipes are arranged in the preheating chamber, the heating chamber and the rear air exchange chamber, heat insulation partition walls are arranged at the junction position of the transition chamber and the preheating chamber, the left side and the right side of the heating chamber and the outlet position of the rear air exchange chamber, heat insulation partition walls at the left side and the right side of the heating chamber are provided with heat insulation partition mechanisms, the outer side wall of the outlet position of the rear air exchange chamber is provided with a steam recovery cover, a roller rod transmission belt is arranged in the quenching heating furnace in a left-right through mode, lifting sealing door mechanisms are arranged at the inlet and the outlet sides of the vacuum air exchange chamber, a vacuum pipe and a nitrogen pipe are connected to the vacuum air exchange chamber, four heating zones are arranged in the heating chamber, four circulating fans are installed at the top of the heating chamber, each circulating fan is correspondingly installed in a heating zone, a furnace top heat-insulating layer is arranged at the top of the heating chamber, a furnace body heat-insulating layer is arranged on the side wall and the bottom of the heating chamber, the furnace body heat-insulating layer is sequentially arranged into a heat-insulating plate, a nano plate, a heat-insulating brick and an anti-carburizing brick from inside to outside, a ventilation pipe is arranged at the top of the rear ventilation chamber, material inlet and outlet through holes are formed in the middle of heat-insulating partition walls on the left side and the right side of the heating chamber, spring mounting holes are formed below the material inlet and outlet through holes, partition plate lifting holes are formed above the material inlet and outlet through holes, a movement frame limiting plate is installed at the hole opening position of the spring mounting holes, the heat-insulating partition mechanism comprises a partition plate, a partition driving cylinder, a carrier roller movement frame and a spring, the partition plate is movably installed in the partition plate lifting holes, the partition driving cylinder is installed at the top of the quenching heating furnace, the piston rod end that cuts off and drive actuating cylinder links to each other with the upper end of partition panel, bearing roller motion frame movable mounting is in the spring mounting hole, the spring lower extreme links to each other with spring mounting hole bottom of the hole, the spring upper end is connected on bearing roller motion frame terminal surface down, two driving rollers are installed in the last rotation of bearing roller motion frame, two the driving roller middle part is equipped with down the riser, the peak that pushes down the riser is less than the peak of two driving rollers, the partition panel lower extreme is connected with down the lug, it is just to pushing down the riser installation to push down the lug.

The salt bath quenching device comprises a quenching tank body and a quenching lifting mechanism, wherein two quenching lifting mechanisms are arranged in the quenching tank body, an inlet and an outlet are arranged in the middle of the quenching tank body, a lifting sealing door mechanism is arranged at the inlet and outlet positions of the quenching tank body, a snakelike air cooling pipe is arranged on the inner wall of the quenching tank body, a salt solution quenching area is arranged in the quenching tank body, the snakelike air cooling pipe is arranged below the inlet and the outlet of the quenching tank body, the position above the salt solution quenching area is arranged, two salt solution stirring mechanisms are arranged in the salt solution quenching area, the quenching lifting mechanisms comprise a quenching lifting rail and a quenching lifting rack, the two quenching lifting rails are arranged on the inner wall of the quenching tank body in parallel, a quenching sliding seat is arranged on the side wall of the quenching lifting rack, the quenching lifting rack is slidably arranged on the two quenching lifting rails through the quenching sliding seat, a roller rod driving belt is arranged in the quenching lifting rack, the quenching lifting material rack is connected with a quenching support, the top of the quenching tank body is provided with a material rack driving assembly, the material rack driving assembly comprises a transmission gear box and a lifting rack, the input end of the transmission gear box is provided with a lifting driving motor, the output end of the transmission gear box is connected with a driving gear, the lifting rack is meshed with the driving gear, the lower end of the lifting rack is connected with the quenching support, the side wall of the transmission gear box is connected with a guide wheel mounting plate, a guide wheel is rotatably mounted on the guide wheel mounting plate, the guide wheel is attached to the non-toothed end of the lifting rack, two salt solution stirring mechanisms are respectively mounted under the two quenching lifting mechanisms in a one-to-one correspondence manner, each salt solution stirring mechanism comprises a stirring wheel and a drainage plate, the stirring wheels are mounted at the bottom of the quenching tank body, and the two drainage plates are symmetrically mounted at two sides of the stirring wheels, the drainage plate is the arc, two the drainage plate mounting height is higher than the stirring wheel, two the drainage plate is the splayed installation of arranging.

Quenching postposition air-cooled cleaning system comprises a first air-cooled chamber, a second air-cooled chamber, a third air-cooled chamber, a first hot washing chamber and a second hot washing chamber, wherein the first air-cooled chamber, the second air-cooled chamber, the third air-cooled chamber, the first hot washing chamber and the second hot washing chamber are sequentially arranged from left to right, the first air-cooled chamber is internally and movably provided with a self-cleaning material platform, the first air-cooled chamber is internally and fixedly provided with a material platform driving assembly, the material platform driving assembly is in transmission connection with the self-cleaning material platform, the second air-cooled chamber and the third air-cooled chamber are internally and fixedly provided with a self-cleaning material platform, the first hot washing chamber and the second hot washing chamber are internally and respectively provided with a cleaning lifting mechanism and an ultrasonic generator, the tops of the first air-cooled chamber, the second air-cooled chamber and the third air-cooled chamber are respectively provided with an air cooler, the middle of the self-cleaning material platform is provided with a roller rod transmission belt, and two sides of the roller rod transmission belt are respectively provided with a water inlet tank and a water inlet tank, The outlet box, it is connected with a plurality of washing basins to intake between case and the outlet box, the setting quantity in washing basin keeps unanimous with the roller stick quantity of roller stick drive belt, every wash the basin and all install in the roller stick below one-to-one, material platform drive assembly includes push pedal, material platform actuating cylinder, the push pedal is connected on the terminal surface under the self-cleaning material platform, material platform actuating cylinder fixed mounting is in first air-cooled chamber, material platform actuating cylinder piston rod end links to each other with the push pedal.

The device comprises a front cleaning device, a quenching heating furnace, a front cleaning device, a material platform trolley, a material platform driving cylinder, a trolley pushing plate, a piston rod end of the trolley driving cylinder and the trolley pushing plate, wherein the front cleaning device is arranged on a vacancy between the front cleaning device and the quenching heating furnace, the translation butt-joint material platform comprises a translation track frame and the trolley pushing plate, two translation rails which are arranged in parallel are arranged on the translation track frame, the trolley pushing plate is movably arranged on the two translation rails, a butt-joint platform is arranged at the upper end of the trolley pushing plate, a roller rod driving belt is arranged on the butt-joint platform, the trolley driving cylinder is arranged on the translation track frame, the trolley pushing plate is arranged at the bottom of the trolley pushing plate, and the piston rod end of the trolley driving cylinder is connected with the trolley pushing plate.

The quenching device is characterized in that a third rail set is installed between the quenching heating furnace and the salt bath quenching device, a transposition material butt-joint platform is movably installed on the third rail set and comprises a longitudinal moving chassis, a translation material butt-joint platform is installed at the upper end of the longitudinal moving chassis, a longitudinal moving driving mechanism is installed at the lower end of the longitudinal moving chassis and comprises a wheel shaft and a wheel driving motor, the wheel shaft is rotatably installed at the lower end of the longitudinal moving chassis, a pair of travelling wheels is installed on the wheel shaft, and the wheel shaft is in transmission connection with the wheel driving motor.

The cold cleaning device is internally provided with two cleaning lifting mechanisms, a plurality of cold air pipes are arranged in the draining chamber, a water collecting area is arranged in the draining chamber, a water collecting pore plate is obliquely arranged in the draining chamber, a hot air fan is arranged in the drying chamber, two tempering feed inlets are arranged on the right side of the tempering furnace, two tempering discharge outlets are arranged on the left side of the tempering furnace, an upper roller rod transmission belt and a lower roller rod transmission belt are arranged on the tempering furnace, the tempering feed inlets and the tempering discharge outlets are respectively arranged corresponding to the two roller rod transmission belts, flip sealing doors are respectively arranged on the tempering feed inlets and the tempering discharge outlets, a lifting feed and discharge device is respectively arranged on the left side and the right side of the tempering furnace, the lifting feed and discharge device comprises a main frame, a supporting beam, a conveying rack and a rack lifting cylinder, the main frame comprises two upright columns and a cross beam, and the two upright columns and the cross beam are lapped to form a door-shaped frame, the material rack conveying device comprises a material rack, a material rack lifting cylinder, a conveying material rack, a roller rod conveying belt, a tempering rear air cooling device, a discharging transition material platform set, a draining chamber and a drying chamber, wherein one end of a supporting beam is connected to the outer wall of the tempering furnace, the other end of the supporting beam is connected to the main frame, the conveying material rack is arranged in the main frame in a lifting mode, the material rack lifting cylinder is arranged on a cross beam, the piston rod end of the material rack lifting cylinder is connected with the conveying material rack, the roller rod conveying belt is arranged on the conveying material rack, the tempering rear air cooling device comprises four air cooling platforms, the discharging transition material platform set comprises a plurality of fixed material platforms, a transferring material platform set is arranged between the draining chamber and the drying chamber, and the transferring material platform set comprises two fixed material platforms.

The lifting conveying material platform comprises a cross rod lifting mechanism, the lifting conveying material platform adopts a longitudinal moving chassis and a longitudinal moving driving mechanism as a chassis moving structure, the cross rod lifting mechanism is installed on the longitudinal moving chassis, a conveying platform is installed at the upper end of the cross rod lifting mechanism, and a roller rod driving belt is installed on the conveying platform.

And isolation material platforms are arranged at the sides of the third track group and the second track group.

The invention has the beneficial effects that: the invention is designed and arranged specially according to the heat treatment process of the bearing part, has reasonable layout and small occupied area, is divided into two quenching and tempering lines, and can complete the whole heat treatment process of the bearing part by one circulation.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a view showing an internal structure of the front washing apparatus of the present invention;

FIG. 3 is a front structural view of the lift seal door mechanism of the present invention;

FIG. 4 is a schematic diagram of the lifting structure of the cleaning lifting mechanism of the present invention;

FIG. 5 is an internal structural view of a quenching heating furnace of the invention;

FIG. 6 is a view showing an installation structure of the thermal insulation partition mechanism of the present invention;

FIG. 7 is a schematic structural view of the furnace insulation layer of the present invention;

FIG. 8 is an internal structural view of a salt bath quenching apparatus of the present invention;

FIG. 9 is a schematic view of the elevating structure of the quenching elevating mechanism of the invention;

fig. 10 is a front view of a drive configuration of the stack drive assembly of the present invention;

fig. 11 is a top view of a transmission structure of the stack drive assembly of the present invention;

FIG. 12 is a schematic structural view of a post-quench air-cooled cleaning system of the present invention;

FIG. 13 is a schematic view showing the internal structure of a first air-cooled chamber of the present invention;

FIG. 14 is a top view block diagram of the self-cleaning material table of the present invention;

FIG. 15 is a top view of the translating butt-feed table of the present invention;

FIG. 16 is a front view of the translating material docking station of the present invention;

FIG. 17 is a front view of the index docking station of the present invention;

FIG. 18 is a view showing the arrangement of the cold washing apparatus and the draining chamber according to the present invention;

fig. 19 is an internal structural view of a tempering furnace of the present invention;

FIG. 20 is a lifting structure view of the lifting charging and discharging device of the present invention;

fig. 21 is a schematic structural view of the lifting and conveying material table of the present invention.

In the figure: quenching line 1, feeding transition material table group 11, fixed material table 111, front cleaning device 12, immersion chamber 121, cleaning lifting mechanism 1211, cleaning lifting rail 12111, cleaning lifting frame 12112, cleaning slide 12113, cleaning support 12114, cleaning lifting cylinder 12115, ultrasonic generator 1212, spray chamber 122, fixed feed frame 1221, spray mechanism 1222, spray pipe 12221, water collection area 1223, water collection hole plate 1224, rinsing chamber 123, air drying area 124, cold air chamber 1241, cold air pipe 12411, hot air chamber 1242, hot air fan 12421, lifting sealing door mechanism 125, cylinder mount 1251, sealing door cylinder 1252, lifting sealing door 1253, quenching heating furnace 13, vacuum air exchange chamber 131, vacuum pipe 1311, nitrogen pipe 1312, transition heating pipe 132,

preheating chamber

133, 134, heating chamber 135, heating zone 1351, circulating fan 1352, furnace top insulating layer 1353, furnace body 1354, insulation layer 13541, heat preservation layer 1354, thermal insulation layer 13578, thermal insulation layer 1351, thermal insulation layer, and thermal insulation layer, and thermal insulation layer, nano plate 13542, insulating brick 13543, anti-carburizing brick 13544, rear ventilation chamber 136, ventilation pipe 1361, insulating partition wall 137, material inlet and outlet through hole 1371, spring mounting hole 1372, partition plate lifting hole 1373, moving frame limit plate 1374, insulating partition mechanism 138, partition plate 1381, lower pressing bump 13811, partition driving cylinder 1382, carrier roller moving frame 1383, driving roller 13831, lower pressing vertical plate 13832, spring 1384, steam recovery cover 139, salt bath quenching device 14, quenching tank 141, quenching lifting mechanism 142, quenching lifting rail 1421, quenching lifting rack 1422, quenching slide 1423, quenching bracket 1424, rack driving component 1425, transmission gear box 14251, lifting driving motor 14252, driving gear 14253, lifting rack 14254, guide wheel mounting plate 14255, air-cooled guide wheel 14256, serpentine pipe 143, salt solution quenching area 144, salt solution stirring mechanism 145, stirring wheel 1451, drainage plate 1452, quenching post-cooling cleaning system 15, A first air-cooling chamber 151, a self-cleaning material table 1511, a water inlet tank 15111, a water outlet tank 15112, a cleaning water tank 15113, a material table driving component 1512, a push plate 15121, a material table driving cylinder 15122, an air cooler 1513, a second air-cooling chamber 152, a third air-cooling chamber 153, a first hot washing chamber 154, a second hot washing chamber 155, a translation butt material table 16, a translation rail frame 161, a translation rail 1611, a material table trolley 162, a butt platform 163, a trolley driving cylinder 164, a trolley push plate 165, a transposition butt material table 17, a longitudinal moving chassis 171, a longitudinal moving driving mechanism 172, a wheel shaft 1721, a walking wheel 1722, a wheel driving motor 1723, a brine separator 18, a tempering line 2, a cold cleaning device 21, a draining chamber 22, a drying chamber 23, a tempering furnace 24, a tempering material inlet 241, a tempering material outlet 242, a flip-cover sealing door 243, a lifting material inlet device 244, a main frame 2441, a stand 24411, a cross beam 24412, a supporting beam 2442, a conveying material frame 2443, a conveying material frame 2442, a conveying material frame 2443, A material rack lifting cylinder 2444, a tempering rear air cooling device 25, an air cooling table 251, a discharging transition material table group 26, a transfer material table group 27, a first track group 3, a walking track 31, a lifting conveying material table 4, a cross rod lifting mechanism 41, a conveying platform 42, a second track group 5, a third track group 6, an isolation material table 7 and a roller rod driving belt 8

Detailed Description

The present invention will be further described with reference to the following drawings and detailed description, wherein the descriptions of "left", "right", etc. refer to fig. 1 for reference:

as shown in fig. 1 to 21, a heat treatment production line for bearing components comprises a quenching line 1 and a tempering line 2, wherein the quenching line 1 and the tempering line 2 are arranged in parallel, a feeding transition material table group 11, a front cleaning device 12, a quenching heating furnace 13, a salt bath quenching device 14 and a quenching rear air cooling cleaning system 15 are sequentially and linearly arranged on the quenching line 1 from left to right, the feeding transition material table group 11 is used for adjusting the length of the whole quenching line 1 to be consistent with the tempering line 2, impurities and dust are left on bearing components after metal processing, so that the bearing components need to be cleaned before quenching, the front cleaning device 12 has cleaning and drying functions, the quenching heating furnace 13 has a heating function before quenching, the heated bearing components flow into the salt bath quenching device 14 to carry out salt bath quenching operation, salt solution is left on the quenched bearing components, and cleaning operation needs to be carried out, the air cooling cleaning system 15 arranged after quenching plays a role in cooling and hot cleaning, residual salt liquid on the bearing component is cleaned, the tempering line 2 is sequentially and linearly arranged from right to left, the cold cleaning device 21, the draining chamber 22, the drying chamber 23, the tempering furnace 24, the air cooling device 25 arranged after tempering and the discharging transition material table group 26, before tempering, cold cleaning is carried out on the cold cleaning device 21 firstly, temperature reduction and secondary cleaning are carried out, the bearing component is ensured to be clean, then, the bearing component is drained and dried in the draining chamber 22 and the drying chamber 23 respectively, and then enters the tempering furnace 24 for tempering operation, the bearing component output after tempering is cooled and output through the air cooling device 25 arranged after tempering, the discharging transition material table group 26 plays a role in adjusting the overall length of the tempering line 2, and the bearing component is placed in a bearing component mounting basket for circulation in the whole heat treatment process, the left side ground of the quenching line 1 and the tempering line 2 is provided with a first track group 3, the right side ground of the quenching line 1 and the tempering line 2 is provided with a second track group 5, the first track group 3 and the second track group 5 both comprise two parallel walking tracks 31, the first track group 3 and the second track group 5 are respectively provided with a lifting conveying material platform 4, the lifting conveying material platform 4 on the first track group 3 plays a role in inputting and outputting bearing part materials, the lifting conveying material platform 4 on the second track group 5 plays a role in transferring the bearing part materials operated by the quenching line 1 to the tempering line 2, the invention is specially designed and arranged according to the heat treatment process of the bearing parts, the heat treatment device has the advantages of reasonable layout, small occupied area, high heat treatment efficiency and stable heat treatment quality, and the whole heat treatment process of the bearing component can be completed by one circulation.

The feeding transition material table group 11 comprises a plurality of fixed material tables 111, the length of the quenching line 1 is adjusted according to the number of the fixed material tables 111, in order to ensure that the materials can smoothly flow between the quenching line 1 and the tempering line 2, the quenching line 1 and the tempering line 2 are set to be equal in length, the fixed material tables 111 are closely arranged along a straight line, roller rod transmission belts 8 are installed on the fixed material tables 111, the roller rod transmission belts 8 play a role in transferring and conveying the materials to be heat-treated, bearing parts to be heat-treated are placed in bearing part mounting baskets to flow, the quenching line 1 flows from left to right, the tempering line 2 flows from right to left, the front cleaning device 12 comprises an immersion chamber 121, a spray chamber 122, a rinsing chamber 123 and an air drying zone 124, the immersion chamber 121, the spray chamber 122, the rinsing chamber 123 and the air drying zone 124 are sequentially arranged from left to right, the flowing and transferred bearing part mounting baskets firstly enter the immersion chamber 121 to perform immersion cleaning, then the water is sprayed and cleaned in two ways in the spraying chamber 122 and the rinsing chamber 123, and finally enters the air drying area 124 for air drying, a cleaning lifting mechanism 1211 is installed in the soaking chamber 121, a cold air chamber 1241 and two hot air chambers 1242 are arranged in the air drying area 124 from left to right, the soaking chamber 121, the spraying chamber 122, the rinsing chamber 123 and the air drying area 124 are all communicated with each other, the inlet position of the soaking chamber 121, the inlet and outlet positions of the cold air chamber 1241 and the two hot air chambers 1242 are all provided with a lifting sealing door mechanism 125, thus, the inlet and outlet of the preposed cleaning device 12 can be controlled to be opened and closed, the cleaning area and the air drying area 124 can be separated from each other and do not influence each other, meanwhile, the cold air chamber 1241 and the two hot air chambers 1242 of the air drying area 124 can be separated from each other and do not influence the operation, the cleaning lifting mechanism 1211 comprises a cleaning lifting rail 12111, a cleaning lifting rack 12112 and a cleaning lifting cylinder 12115, and two cleaning lifting rails 12111 are installed on the inner side wall of the soaking chamber 121, two cleaning lifting rails 12111 are arranged in parallel, a cleaning slide 12113 is arranged on the side wall of a cleaning lifting rack 12112, the cleaning lifting rack 12112 is slidably arranged on the two cleaning lifting rails 12111 through the cleaning slide 12113, a roller transmission belt 8 is arranged in the cleaning lifting rack 12112, a cleaning support 12114 is connected to the upper end of the cleaning lifting rack 12112, a cleaning lifting cylinder 12115 is arranged on the top of the immersion chamber 121, the piston rod end of the cleaning lifting cylinder 12115 extends into the immersion chamber 121 and is connected with the cleaning support 12114, the cleaning lifting cylinder 12115 can drive the cleaning lifting rack 12112 to move up and down, an ultrasonic generator 1212 is arranged at the indoor bottom of the immersion chamber 121, after the bearing component mounting basket is rotated into the immersion chamber 121, the bearing component mounting basket is immersed into hot alkaline water through a cleaning lifting mechanism 1211, the ultrasonic generator 1212 generates ultrasonic waves to perform cleaning operation to remove impurities and dust on the bearing component, the spray chamber 122 and the rinse chamber 123 are both provided with a fixed feeding frame 1221, the fixed feeding frame 1221 is also provided with a roller rod transmission belt 8, the spray chamber 122 and the rinse chamber 123 are respectively provided with two spray mechanisms 1222, one spray mechanism 1222 is arranged above the fixed feeding frame 1221, the other spray mechanism 1222 is arranged below the fixed feeding frame 1221, thus, spray water columns can cover the upper and lower surfaces of the bearing component mounting basket to enhance the cleaning effect, the spray chamber 122 is cleaned by hot alkaline water, the rinse chamber 123 is cleaned by hot clean water, the spray mechanism 1222 is provided with a plurality of spray pipes 12221, the spray chamber 122 is provided with a water collecting area 1223, the spray chamber 122 is provided with a water collecting pore plate 1224 obliquely, the water collecting pore plate 1224 is convenient for collecting washing water from falling to the water collecting area 1223 for centralized treatment, the water collecting pore plate 1224 is arranged above the water collecting area 1223, the rinse chamber 123 is communicated with the pipeline of the soak chamber 121, the rinse chamber 123 is provided with a liquid level control and automatic liquid supplementing device, through the intercommunication of pipelines, the rinsing chamber 123 can automatically replenish water to the soaking chamber 121, the fixed feeding frame 1221 is also arranged in the cold air chamber 1241 and the two hot air chambers 1242, the plurality of cold air pipes 12411 are arranged in the cold air chamber 1241, the plurality of cold air pipes 12411 are arranged above the fixed feeding frame 1221 to dry the cleaned bearing component by cold air, the hot air fan 12421 is arranged at the top of the hot air chamber 1242 to ensure the drying of the bearing component by continuous drying of one cold air and two hot air, the lower parts of the cold air chamber 1241 and the two hot air chambers 1242 are mutually communicated to form a water collecting area 1223, the lower parts of the cold air chamber 1241 and the two hot air chambers 1242 are also obliquely provided with water collecting pore plates 1224, residual water generated in drying can be effectively collected and treated to ensure the drying of a drying working interface, the lifting sealing door mechanism 125 comprises an air cylinder 1251 and a sealing door air cylinder mounting frame 1252, the sealing door air cylinder 1252 is arranged on the air cylinder 1251, sealing door cylinder 1252 installs perpendicularly downwards, and sealing door cylinder 1252 tailpiece of the piston rod is connected with lift sealing door 1253, and the piston rod through sealing door cylinder 1252 stretches out and draws back and drives lift sealing door 1253's lift to the switching of position is imported and exported in the control, two hot-blast rooms 1242 preferentially adopt 13 burning waste gas of quenching heating furnace as the heat source, and the waste gas heat is by abundant retrieval and utilization, promotes energy utilization, reduces the production energy consumption.

The quenching heating furnace 13 comprises a vacuum air exchange chamber 131, a transition chamber 132, a preheating chamber 133, a heating chamber 135 and a rear air exchange chamber 136, wherein the vacuum air exchange chamber 131, the transition chamber 132, the preheating chamber 133, the heating chamber 135 and the rear air exchange chamber 136 are sequentially arranged from left to right, the vacuum air exchange chamber 131 plays a role of vacuumizing and filling protective gas, the transition chamber 132 plays a role of transition, the preheating chamber 133 plays a role of pre-preheating to reduce the deformation of a workpiece caused by uneven thermal stress, the heating chamber 135 is gradually heated to heat a bearing component to a required temperature, the rear air exchange chamber 136 plays a role of exhausting protective gas to prepare output materials, heating pipes 134 are arranged in the preheating chamber 133, the heating chamber 135 and the rear air exchange chamber 136, the heating pipes 134 adopt U-shaped gas radiation pipes, and the preheating chamber 133, the heating chamber 135 and the rear air exchange chamber 136 need heat preservation and heat insulation, so that the junction position of the transition chamber 132 and the preheating chamber 133 is connected with the heating chamber 133, Heat-insulating partition walls 137 are arranged on the left side and the right side of the heating chamber 135 and the outlet position of the back scavenging chamber 136, heat-insulating partition walls 138 are arranged on the heat-insulating partition walls 137 on the left side and the right side of the heating chamber 135, a lifting sealing door mechanism 125 is arranged on the inlet position of the preheating chamber 133 and the outlet position of the back scavenging chamber 136, high-temperature steam can be taken out when bearing part mounting baskets are circulated and output from the quenching heating furnace 13, if the bearing part mounting baskets are not controlled, the high-temperature steam can be rapidly diffused to cause workshop environment pollution and harm to nearby workers, therefore, a steam recovery cover 139 is arranged on the outer side wall of the outlet position of the back scavenging chamber 136 to process the hot steam in a suction and exhaust mode, a roller rod driving belt 8 is arranged in the quenching heating furnace 13 in a left-right through mode to facilitate the circulation of the bearing part mounting baskets in the quenching heating furnace 13, a vacuum scavenging chamber 131 is not arranged in the traditional quenching heating furnace 13, and workpieces directly enter the heating furnace, because the workpiece is exposed in the air before entering the furnace, the workpiece can bring the air when entering the furnace, and the air entering can influence the heating effect, the traditional heating furnace adopts fire curtain sealing at the inlet, increases the pressure of the protective gas, uses the protective gas to press and exhaust the entering air, the fire curtain sealing can form flame at the inlet of the heating furnace, and has certain production risk, adopts the method of increasing the pressure of the protective gas to press and exhaust the air, can not completely exhaust the entering air, can cause a large amount of loss of the protective gas, and increases the production cost, therefore, the invention adds an independent vacuum air exchange chamber 131 in front of the heating zone to solve the problems, the lifting sealing door mechanisms 125 are arranged at both sides of the inlet and the outlet of the vacuum air exchange chamber 131, the vacuum tube 1311 and the nitrogen tube 1312 are connected on the vacuum air exchange chamber 131, when the inlet of the vacuum air exchange chamber 131 is opened, the outlet of the vacuum air exchange chamber 131 is in a closed state, the bearing component mounting basket flows into the vacuum air exchange chamber 131, then the inlet of the vacuum air exchange chamber 131 is closed, air entering along with the bearing component mounting basket is exhausted through the vacuum tube 1311, then protective gas (nitrogen) is added through the nitrogen tube 1312, then the outlet of the vacuum air exchange chamber 131 is opened, the bearing component mounting basket flows into the heating zone, through the arrangement of the vacuum air exchange chamber 131, the problem that air entering the furnace cannot be exhausted completely is solved, the problem that the consumption of the protective gas is high is also solved, a fire curtain sealing device does not need to be additionally arranged at the inlet of the furnace, the potential safety hazard of workshop production is reduced, the heating chamber has positive practical effects, the purposes of saving energy, reducing emission and reducing production cost are realized, four heating zones 1351 are arranged in the heating chamber 135, four circulating fans 1352 are arranged at the top of the heating chamber 135, each circulating fan 1352 is correspondingly arranged in one heating zone 1351, and each circulating fan 1352 plays a role of homogenizing the heating temperature of the heating zone 1351, along the workpiece flowing direction, the four heating areas 1351 are gradually heated up to 850 ℃, a furnace top heat-insulating layer 1353 is arranged at the top of the heating chamber 135, the furnace top heat-insulating layer 1353 adopts heat-insulating felt with the thickness of 400mm, furnace body heat-insulating layers 1354 are arranged on the side walls and the bottom of the heating chamber 135, the furnace body heat-insulating layers 1354 are sequentially arranged from inside to outside as a heat-insulating plate 13541, a nano-plate 13542, heat-insulating bricks 13543 and anti-carburizing bricks 13544, and the total thickness 395mm of the furnace body heat-insulating layers 1354, so that the heating chamber 135 has good heat-insulating effect and reduces the heating energy consumption of the quenching heating furnace 13, a ventilation pipe 1361 is arranged at the top of the rear ventilation chamber 136 and is used for pumping out protective gas to reduce waste, material inlet and outlet through holes 1371 are arranged in the middle parts of the heat-insulating walls 137 at the left and right sides of the heating chamber 135, spring mounting holes 1372 are arranged below the material inlet and outlet through holes 1371, partition plate lifting holes 1373 are arranged above the material inlet and outlet through holes 1371, motion frame limiting plates 1374 are arranged at the hole 1374, in the traditional heating furnace, because of the requirement of workpiece circulation, the heating chamber 135, the preheating chamber 133 and the rear scavenging chamber 136 can not be well sealed, so that the temperature channeling phenomenon can occur, the heat energy loss of the heating chamber 135 is large, the invention designs the heat-insulating partition mechanism 138 to solve the sealing problem of the partition position, the heat-insulating partition mechanism 138 comprises a partition plate 1381, a partition driving cylinder 1382, a carrier roller moving frame 1383 and a spring 1384, the partition plate 1381 is movably arranged in a partition plate lifting hole 1373, the partition driving cylinder 1382 is arranged at the top of the quenching heating furnace 13, the piston rod end of the partition driving cylinder 1382 is connected with the upper end of the partition plate 1381, the partition plate 1381 is driven to lift by the expansion and contraction of the piston rod of the partition driving cylinder 1382, the partition plate 1381 plays a sealing role for the material inlet and outlet through hole 1371, the carrier roller moving frame 1383 is movably arranged in a spring mounting hole 1372, the lower end of the spring 1384 is connected with the bottom of the spring mounting hole 1372, the upper end of a spring 1384 is connected to the lower end face of a carrier roller moving frame 1383, two transmission rollers 13831 are rotatably arranged on the carrier roller moving frame 1383, the middle parts of the two transmission rollers 13831 are provided with lower pressing vertical plates 13832, the highest point of each lower pressing vertical plate 13832 is lower than that of each transmission roller 13831, therefore, when the bearing part mounting basket is circulated, the bearing part mounting basket is not influenced by the lower pressing vertical plates 13832, the lower end of a partition plate 1381 is connected with a lower pressing lug 13811, the lower pressing lug 13811 is arranged opposite to the lower pressing vertical plates 13832, when the partition plate 1381 needs to be sealed, the partition plate 1381 descends, the lower pressing lug 13811 presses on the lower pressing vertical plates 13832, thereby driving the carrier roller moving frame 1383 to descend, at the moment, the spring 1384 is compressed until the partition plate 1381 presses on a moving frame limiting plate 1374, the partition of a heat-insulation partition wall 137 is completed, when a workpiece needs to be circulated, the partition plate 1381 rises, the lower pressure of the carrier roller moving frame 1383 loses the downward force, and moves upwards under the action of the spring 1384, until the carrier roller moving frame 1383 moves to contact with the moving frame limiting plate 1374, the height of the driving roller 13831 is consistent with that of the roller rod driving belt 8, a workpiece inlet and outlet channel of the heat-insulation partition wall 137 is opened, and the bearing part mounting basket can normally circulate.

The salt bath quenching device 14 comprises a quenching tank body 141 and a quenching lifting mechanism 142, wherein two quenching lifting mechanisms 142 are arranged in the quenching tank body 141, an inlet and an outlet are arranged in the middle of the quenching tank body 141, a lifting sealing door mechanism 125 is arranged at the position of the inlet and the outlet of the quenching tank body 141, a snake-shaped air cooling pipe 143 is arranged on the inner wall of the quenching tank body 141, a salt solution quenching area 144 is arranged in the quenching tank body 141, salt solution for quenching is filled in the salt solution quenching area 144, the snake-shaped air cooling pipe 143 is arranged below the inlet and the outlet of the quenching tank body 141, a heating element is arranged in the salt solution quenching area 144, a workpiece is quenched in hot salt solution, two salt solution stirring mechanisms 145 are arranged in the salt solution quenching area 144, the salt solution flowing is accelerated by stirring the salt solution, the quenching effect is improved, the quenching lifting mechanism 142 comprises a quenching lifting rail 1421 and a quenching lifting rail 1422, two quenching lifting rails 1421 are arranged on the inner wall of the quenching tank body 141 and are arranged in parallel, a quenching slide seat 1423 is mounted on the side wall of the quenching lifting material rack 1422, the quenching lifting material rack 1422 is slidably mounted on two quenching lifting rails 1421 through the quenching slide seat 1423, a roller transmission belt 8 is mounted in the quenching lifting material rack 1422, a quenching support 1424 is connected on the quenching lifting material rack 1422, a material rack driving assembly 1425 is mounted at the top of the quenching tank body 141, the material rack driving assembly 1425 comprises a transmission gear box 14251 and a lifting rack 14254, a lifting driving motor 14252 is mounted at the input end of the transmission gear box 14251, a driving gear 14253 is connected at the output end of the transmission gear box 14251, the lifting rack 14254 is meshed with the driving gear 14253, the lower end of the lifting rack 14254 is connected with the quenching support 1424, a guide wheel mounting plate 14255 is connected on the side wall of the transmission gear box 14251, a guide wheel 14256 is rotatably mounted on the guide wheel mounting plate 14255, the guide wheel 14256 is attached to the non-tooth end of the lifting rack 14254, the guide wheel 14256 plays a role in guiding the lifting motion of the lifting rack 14254, the lifting motion of the lifting rack 14254 is driven to drive the quenching lifting rack 1422 to lift, so that the bearing component mounting basket on the roller bar transmission belt 8 can be immersed in the salt solution to carry out quenching operation, the two salt solution stirring mechanisms 145 are respectively installed under the two quenching lifting mechanisms 142 one by one, the two quenching lifting mechanisms 142 represent two quenching stations, the left side is a station 1, the right side is a station 2, during quenching, a workpiece needs to move up and down in the salt solution, after completing one quenching period at the station 1, the workpiece needs to flow to the station 2 to carry out a second quenching period, and after completing two quenching periods, the workpiece can be output, the salt solution stirring mechanism 145 comprises a stirring wheel 1451 and a drainage plate 1452, the stirring wheel 1451 is installed at the bottom of the quenching tank body 141, the two drainage plates 1452 are symmetrically installed at two sides of the stirring wheel 1451, the drainage plates 1452 are arc-shaped plates, the installation height of the two drainage plates 1452 is higher than that of the stirring wheel 1451, the two drainage plates 1452 are arranged and installed in a splayed manner, salt solution rushing channels are formed inside the two drainage plates, when the stirring wheel 1451 stirs the salt solution, the salt solution passes through the rushing channels between the two drainage plates 1452 to form uprushing effect, quenching effect is improved, and the bearing component is enabled to obtain micro-deformation and qualified metallographic structures.

The post-quenching air-cooled cleaning system 15 comprises a first air-cooled chamber 151, a second air-cooled chamber 152, a third air-cooled chamber 153, a first hot washing chamber 154, a second hot washing chamber 155, a first air-cooled chamber 151, a second air-cooled chamber 152, a third air-cooled chamber 153, a first hot washing chamber 154 and a second hot washing chamber 155 which are sequentially arranged from left to right, wherein a self-cleaning material table 1511 is movably arranged in the first air-cooled chamber 151, a material table driving assembly 1512 is also arranged in the first air-cooled chamber 151, because the first air-cooled chamber 151 needs to butt against an outlet of the salt bath quenching device 14 for circulation of a bearing part mounting basket, therefore, the self-cleaning material table 1511 of the first air-cooled chamber 151 needs to be movably arranged so as to conveniently receive the bearing part mounting basket, the material table driving assembly 1512 is in transmission connection with the self-cleaning material table 1511, the material table driving assembly 1512 drives the material table 1511 to move for butt joint, the self cleaning material table 1511 is fixedly arranged in the second air-cooled chamber 152 and the third air-cooled chamber 153, the first hot washing chamber 154 and the second hot washing chamber 155 are both provided with a cleaning lifting mechanism 1211 and an ultrasonic generator 1212, the first hot washing chamber 154 and the second hot washing chamber 155 are cleaned by soaking in hot clean water, the cleaning quality is ensured by two cleaning processes, the quenching line 1 further comprises a salt water separator 18, the first hot washing chamber 154 and the second hot washing chamber 155 are connected with the salt water separator 18 through pipelines, water cleaned by the first hot washing chamber 154 contains salt liquid and needs to be output to the salt water separator 18 for separation operation, the separated clean water is supplemented to the second hot washing chamber 155 for the second cleaning process, the tops of the first air cooling chamber 151, the second air cooling chamber 152 and the third air cooling chamber 153 are provided with an air cooler 1513, the temperature of the bearing part is stabilized below 70 ℃ through three strong cooling air, and salt liquid is remained on the mounting basket of the bearing part just output from the salt bath quenching device 14 in the circulation of the air cooling chambers, the roller is easy to be adsorbed on the roller transmission belt 8 and affects the service life of the roller, therefore, the invention designs a structure of a self-cleaning material table 1511, the roller transmission belt 8 is arranged in the middle of the self-cleaning material table 1511 and is used for circulation transmission, a water inlet tank 15111 and a water outlet tank 15112 are respectively arranged at two sides of the roller transmission belt 8, a plurality of cleaning water tanks 15113 are connected between the water inlet tank 15111 and the water outlet tank 15112, cleaning water flows from the water inlet tank 15111 to the water outlet tank 15112 through the cleaning water tanks 15113, the number of the cleaning water tanks 15113 is consistent with the number of the rollers of the roller transmission belt 8, each cleaning water tank 15113 is correspondingly arranged below the roller one by one, the lower end of the roller is contacted with the cleaning water, thus, salt liquid on the surface of the roller can be taken away by the cleaning water along with the rotation of the roller, the salt accumulation phenomenon on the surface of the roller is prevented, the water outlet tank 15112 is connected to a salt water separator 18 for salt water separation operation, and the separated clean water is recycled to the water tank 15111, so that water resources can be fully utilized, the material table driving assembly 1512 comprises a push plate 15121 and a material table driving cylinder 15122, the push plate 15121 is connected to the lower end face of the self-cleaning material table 1511, the material table driving cylinder 15122 is fixedly installed in the first air cooling chamber 151, the piston rod end of the material table driving cylinder 15122 is connected with the push plate 15121, and the self-cleaning material table 1511 can be pushed to move left and right through the material table driving cylinder 15122 to meet the requirement of butt joint operation.

A translation butt-joint material platform 16 is arranged on a vacant position between the front cleaning device 12 and the quenching heating furnace 13, the translation butt-joint material platform 16 is used for realizing butt-joint conveying between the outlet position of the front cleaning device 12 and the inlet position of the quenching heating furnace 13, the translation butt-joint material platform 16 comprises a translation track frame 161 and a material platform trolley 162, two translation tracks 1611 which are arranged in parallel are arranged on the translation track frame 161, the material platform trolley 162 is movably arranged on the two translation tracks 1611, a butt-joint platform 163 is arranged at the upper end of the material platform trolley 162, a roller rod driving belt 8 is arranged on the butt-joint platform 163 and used for conveying a bearing part mounting basket, a trolley driving air cylinder 164 is arranged on the translation track frame 161, a trolley push plate 165 is arranged at the bottom of the material platform trolley 162, the piston rod end of the trolley driving air cylinder 164 is connected with the trolley push plate 165, the trolley driving air cylinder 164 pushes the material platform trolley 162 to move transversely left and right, so as to realize the transverse movement of the butt-joint platform 163, so that the device can be butted with the preposed cleaning device 12 and the quenching heating furnace 13.

A third rail set 6 is arranged between the quenching heating furnace 13 and the salt bath quenching device 14, a transposition material butt joint platform 17 is movably arranged on the third rail set 6, the transposition material butt joint platform 17 comprises a longitudinal moving chassis 171, a translational material butt joint platform 16 is arranged at the upper end of the longitudinal moving chassis 171, a longitudinal moving driving mechanism 172 is arranged at the lower end of the longitudinal moving chassis 171, the longitudinal moving driving mechanism 172 comprises a wheel shaft 1721 and a wheel driving motor 1723, the wheel shaft 1721 is rotatably arranged at the lower end of the longitudinal moving chassis 171, a pair of traveling wheels 1722 are arranged on the wheel shaft 1721, the wheel shaft 1721 is in transmission connection with the wheel driving motor 1723, the transposition material butt joint platform 17 needs to longitudinally travel on the third rail set 6, so that the longitudinal moving chassis 171 and the longitudinal moving driving mechanism 172 are needed to realize the traveling on the third rail set 6, and the butt joint conveying between the outlet position of the quenching heating furnace 13 and the inlet position of the salt bath quenching device 14 needs to be realized, therefore, there is also a need for lateral movement, which is achieved by longitudinally moving the material docking station 16 mounted on the chassis 171, and by combining the above-mentioned structures, the material docking station 17 with the indexing has dual functions of lateral docking and longitudinal movement.

Two cleaning lifting mechanisms 1211 are arranged in the cold cleaning device 21, the bearing components after hot cleaning need to be cleaned by two soaking cold clean water, the surfaces of the bearing components are ensured to be clean, a plurality of cold air pipes 12411 are arranged in the draining chamber 22, a water collecting area 1223 is arranged in the draining chamber 22, a water collecting pore plate 1224 is obliquely arranged in the draining chamber 22, the bearing components after cold cleaning flow into the draining chamber 22 to be blown and drained by cold air, residual water falls and is collected through the water collecting pore plate 1224, a hot air fan 12421 is arranged in the drying chamber 23, the bearing components after draining flow into the drying chamber 23 to be dried, the bearing components before tempering operation are ensured to be kept dry, the drying chamber 23 adopts waste gas combusted by the quenching heating furnace 13 as a heat source, the heat of the waste gas is fully recycled, the energy utilization rate is improved, the production energy consumption is reduced, two tempering feed inlets 241 are arranged on the right side of the tempering furnace 24, the left side of the tempering furnace 24 is provided with two tempering discharge ports 242, the tempering furnace 24 is provided with an upper layer of roller rod transmission belt 8 and a lower layer of roller rod transmission belt 8, the tempering feed port 241 and the tempering discharge port 242 are respectively arranged corresponding to the two layers of roller rod transmission belts 8, the tempering furnace 24 is provided with a double-layer circulation passage which can fully utilize the furnace space and accelerate the tempering operation efficiency, the tempering feed port 241 and the tempering discharge port 242 are both provided with flip sealing doors 243, because the tempering furnace 24 is provided with the double-layer circulation passage, a matched lifting material receiving mechanism is needed during feeding and discharging, therefore, the invention designs a lifting material feeding and discharging device 244, the left side and the right side of the tempering furnace 24 are respectively provided with the lifting material feeding and discharging device 244, the lifting material feeding and discharging device 244 comprises a main frame 2441, a supporting beam 2442, a conveying frame 2443 and a material frame lifting cylinder 2444, the main frame 2441 comprises two upright columns 24411 and a cross beam 24412, the two upright columns 24411 and the cross beam 24412 are lapped to form a door-shaped frame, one end of a supporting beam 2442 is connected to the outer wall of the tempering furnace 24, the other end of the supporting beam 2442 is connected to a main frame 2441, the conveying rack 2443 is installed in the main frame 2441 in a lifting mode, a rack lifting cylinder 2444 is installed on a cross beam 24412, the piston rod end of the rack lifting cylinder 2444 is connected with the conveying rack 2443, the rack lifting cylinder 2444 drives the conveying rack 2443 to lift to meet the requirements of the upper line and the lower line for entering and exiting, a roller rod driving belt 8 is installed on the conveying rack 2443 and used for conveying workpieces, the tempering post-air cooling device 25 comprises four air cooling tables 251, the bearing workpieces output after tempering need to be cooled down and can be cooled down to below 70 ℃ after four air cooling, the discharging transition table group 26 comprises a plurality of fixed material tables 111, the discharging transition table group 26 is used for adjusting the length of the whole tempering line 2 to keep the length of the tempering line consistent with that of the quenching line 1, a transfer material table group 27 is arranged between the draining chamber 22 and the drying chamber 23, the transfer material table group 27 comprises two fixed material tables 111, and the transfer material table group 27 plays a role in transfer transition.

The lifting conveying material platform 4 comprises a cross rod lifting mechanism 41, the lifting conveying material platform 4 adopts a longitudinal moving chassis 171 and a longitudinal moving driving mechanism 172 as a chassis moving structure, the cross rod lifting mechanism 41 is installed on the longitudinal moving chassis 171, a conveying platform 42 is installed at the upper end of the cross rod lifting mechanism 41, a roller rod driving belt 8 is installed on the conveying platform 42, the height of the conveying platform 42 can be lifted through the cross rod lifting mechanism 41, so that a worker can conveniently put on or take off a bearing component installing basket, the longitudinal moving chassis 171 and the longitudinal moving driving mechanism 172 enable the lifting conveying material platform 4 to walk on the first track group 3 and the second track group 5, and the lifting conveying material platform can be enabled to move between two heat treatment lines.

Because abnormal conditions can occur in heating and quenching before quenching, the processed bearing part can not meet the cost requirement, the isolating material table 7 is arranged at the side of the third track group 6 and the second track group 5, respectively corresponds to the rear path of the quenching heating furnace 13 and the rear path of the salt bath quenching device 14, and abnormal semi-finished products are respectively placed on the isolating material table 7 through the transposition material butt joint table 17 and the lifting material conveying table 4 to wait for subsequent treatment.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A heat treatment production line of bearing parts, includes quenching line (1), tempering line (2), its characterized in that: the quenching line (1) and the tempering line (2) are arranged in parallel, the quenching line (1) is sequentially and linearly arranged from left to right, a feeding transition material table group (11), a front cleaning device (12), a quenching heating furnace (13), a salt bath quenching device (14) and a quenching rear air cooling cleaning system (15) are arranged, the tempering line (2) is sequentially and linearly arranged from right to left, a cold cleaning device (21), a draining chamber (22), a drying chamber (23), a tempering furnace (24), a tempering rear air cooling device (25) and a discharging transition material table group (26) are arranged, a first track group (3) is arranged on the left side ground of the quenching line (1) and the tempering line (2), a second track group (5) is arranged on the right side ground of the quenching line (1) and the tempering line (2), and the first track group (3) and the second track group (5) both comprise two parallel walking tracks (31), the first rail set (3) and the second rail set (5) are respectively provided with a lifting conveying material platform (4), the quenching heating furnace (13) comprises a vacuum air exchange chamber (131), a transition chamber (132), a preheating chamber (133), a heating chamber (135) and a rear air exchange chamber (136), the vacuum air exchange chamber (131), the transition chamber (132), the preheating chamber (133), the heating chamber (135) and the rear air exchange chamber (136) are sequentially arranged from left to right, heating pipes (134) are arranged in the preheating chamber (133), the heating chamber (135) and the rear air exchange chamber (136), heat insulation partition walls (137) are arranged at the junction position of the transition chamber (132) and the preheating chamber (133), the left side and the right side of the heating chamber (135) and the outlet position of the rear air exchange chamber (136), and heat insulation partition mechanisms (138) are arranged on the heat insulation partition walls (137) at the left side and the right side of the heating chamber (135), the outer side wall of the outlet position of the post-scavenging chamber (136) is provided with a steam recovery cover (139), a roller rod transmission belt (8) is installed in the quenching heating furnace (13) in a left-right through mode, lifting sealing door mechanisms (125) are installed on two sides of an inlet and an outlet of the vacuum scavenging chamber (131), the vacuum scavenging chamber (131) is connected with a vacuum pipe (1311) and a nitrogen pipe (1312), four heating zones (1351) are arranged in the heating chamber (135), four circulating fans (1352) are installed at the top of the heating chamber (135), each circulating fan (1352) is correspondingly installed in one heating zone (1351), a furnace top heat-insulating layer (1353) is arranged at the top of the heating chamber (135), furnace body heat-insulating layers (1354) are arranged on the side wall and the bottom of the heating chamber (135), and the furnace body heat-insulating layers (1354) are sequentially arranged from inside to outside as heat-insulating layers (13541), nano-plates (13542), Insulating brick (13543), anti-carburizing brick (13544), back scavenging chamber (136) top is equipped with scavenge pipe (1361), the heat preservation partition wall (137) middle part of the heating chamber (135) left and right sides is equipped with material business turn over through-hole (1371), material business turn over through-hole (1371) below is equipped with spring mounting hole (1372), material business turn over through-hole (1371) top is equipped with partition panel lift hole (1373), motion frame limiting plate (1374) is installed to spring mounting hole (1372) drill way position, heat preservation partition mechanism (138) includes partition panel (1381), cuts off driving cylinder (1382), bearing roller motion frame (1383), spring (1384), partition panel (1381) movable mounting is in partition panel lift hole (1373), cut off driving cylinder (1382) and install at quenching heating furnace (13) top, the piston rod end of driving cylinder (1382) links to each other with the upper end of partition panel (1381), bearing roller motion frame (1383) movable mounting is in spring mounting hole (1372), spring (1384) lower extreme links to each other with spring mounting hole (1372) hole bottom, spring (1384) upper end is connected on bearing roller motion frame (1383) lower terminal surface, rotate on bearing roller motion frame (1383) and install two driving roller (13831), two driving roller (13831) middle part is equipped with pushes down riser (13832), the peak that pushes down riser (13832) is less than the peak of two driving roller (13831), partition panel (1381) lower extreme is connected with pushes down lug (13811), push down lug (13811) is just being installed to pushing down riser (13832).

2. A heat treatment line for a bearing component according to claim 1, characterized in that: the feeding transition material platform group (11) comprises a plurality of fixed material platforms (111), the fixed material platforms (111) are arranged in a tight fit manner along a straight line, roller rod transmission belts (8) are installed on the fixed material platforms (111), the front cleaning device (12) comprises an immersion chamber (121), a spray chamber (122), a rinsing chamber (123) and an air drying area (124), the immersion chamber (121), the spray chamber (122), the rinsing chamber (123) and the air drying area (124) are sequentially arranged from left to right, a cleaning lifting mechanism (1211) is installed in the immersion chamber (121), a cold air chamber (1241) and two hot air chambers (1242) are arranged in the air drying area (124) from left to right, the immersion chamber (121), the spray chamber (122), the rinsing chamber (123) and the air drying area (124) are communicated with one another, and the inlet position, the outlet position and the outlet position of the immersion chamber (121) are positioned in the air drying area (121), and the inlet position are positioned between the inlet position and the inlet position, the outlet chamber (123) of the inlet chamber (121), and the outlet chamber (122) of the air drying area (123) is positioned between the inlet chamber (121), and the inlet chamber (123) and the outlet chamber (121), and the outlet chamber (123) of the outlet chamber (121) are positioned in the outlet chamber (123) and the outlet chamber (123) are positioned in the outlet chamber (124) and the outlet chamber (123) are positioned in the outlet chamber (124) of the outlet chamber(s) and the outlet of the outlet chamber (2) of the outlet chamber (123) of the outlet chamber (outlet) of the outlet chamber (outlet chamber) of the outlet chamber (outlet chamber) of the outlet chamber (outlet chamber) of the outlet chamber (outlet chamber) of the outlet chamber (, The inlet and outlet positions of the cold air chamber (1241) and the two hot air chambers (1242) are respectively provided with a lifting sealing door mechanism (125), the cleaning lifting mechanism (1211) comprises cleaning lifting rails (12111), a cleaning lifting rack (12112) and a cleaning lifting cylinder (12115), the two cleaning lifting rails (12111) are arranged on the inner side wall of the immersion chamber (121), the two cleaning lifting rails (12111) are arranged in parallel, the side wall of the cleaning lifting rack (12112) is provided with a cleaning sliding seat (12113), the cleaning lifting rack (12112) is arranged on the two cleaning lifting rails (12111) in a sliding manner through the cleaning sliding seat (12113), a roller rod transmission belt (8) is arranged in the cleaning lifting rack (12112), the upper end of the cleaning lifting rack (12112) is connected with a cleaning support (12114), the cleaning lifting cylinder (12115) is arranged at the top of the immersion chamber (121), and the piston rod end of the cleaning lifting cylinder (12115) extends into the immersion chamber (121) and is connected with the cleaning support (12114) The cleaning and lifting air cylinder (12115) can drive the cleaning and lifting material rack (12112) to do lifting movement, an ultrasonic generator (1212) is installed at the indoor bottom of the immersion chamber (121), the spray chamber (122) and the rinsing chamber (123) are both internally provided with a fixed feeding rack (1221), the fixed feeding rack (1221) is also provided with a roller rod transmission belt (8), the spray chamber (122) and the rinsing chamber (123) are both internally provided with two spray mechanisms (1222), one spray mechanism (1222) is installed above the fixed feeding rack (1221), the other spray mechanism (1222) is installed below the fixed feeding rack (1221), the spray mechanism (1222) is provided with a plurality of spray pipes (12221), a water collecting area (1223) is arranged in the spray chamber (122), a water collecting pore plate (1224) is obliquely installed in the spray chamber (122), and the water collecting pore plate (1224) is installed above the water collecting area (1223), the rinsing chamber (123) is communicated with the pipeline of the soaking chamber (121), the cold air chamber (1241) and the two hot air chambers (1242) are both internally provided with a fixed feeding frame (1221), a plurality of cold air pipes (12411) are arranged in the cold air chamber (1241), the cold air pipes (12411) are arranged above the fixed feeding frame (1221), the top of the hot air chamber (1242) is provided with a hot air blower (12421), the lower parts of the cold air chamber (1241) and the two hot air chambers (1242) are communicated with each other to form a water collecting area (1223), a water collecting pore plate (1224) is also obliquely arranged below the cold air chamber (1241) and the two hot air chambers (1242), the lifting sealing door mechanism (125) comprises a cylinder mounting rack (1251) and a sealing door cylinder (1252), the sealing door cylinder (1252) is installed on the cylinder mounting rack (1251), the sealing door cylinder (1252) is installed vertically downwards, and the piston rod end of the sealing door cylinder (1252) is connected with a lifting sealing door (1253).

3. A heat treatment line for a bearing component according to claim 1, characterized in that: the salt bath quenching device (14) comprises a quenching tank body (141) and quenching lifting mechanisms (142), wherein the quenching tank body (141) is internally provided with two quenching lifting mechanisms (142), the middle part of the quenching tank body (141) is provided with an inlet and an outlet, the inlet and the outlet of the quenching tank body (141) are provided with lifting sealing door mechanisms (125), the inner wall of the quenching tank body (141) is provided with a snake-shaped air-cooled pipe (143), a salt solution quenching area (144) is arranged in the quenching tank body (141), the snake-shaped air-cooled pipe (143) is arranged below the inlet and the outlet of the quenching tank body (141), the position above the salt solution quenching area (144) is provided with two salt solution stirring mechanisms (145), the quenching lifting mechanisms (142) comprise quenching lifting rails (1421) and quenching lifting material racks (1422), and the quenching lifting rails (1421) are arranged on the inner wall of the quenching tank body (141) in parallel, the quenching device comprises a quenching lifting rack (1422), a quenching slide seat (1423) is mounted on the side wall of the quenching lifting rack (1422), the quenching lifting rack (1422) is slidably mounted on two quenching lifting rails (1421) through the quenching slide seat (1423), a roller rod transmission belt (8) is mounted in the quenching lifting rack (1422), a quenching support (1424) is connected onto the quenching lifting rack (1422), a rack driving assembly (1425) is mounted at the top of a quenching tank body (141), the rack driving assembly (1425) comprises a transmission gear box (14251) and a lifting rack (14254), a lifting driving motor (14252) is mounted at the input end of the transmission gear box (14251), a driving gear (14253) is connected to the output end of the transmission gear box (14251), the lifting rack (14254) is meshed with the driving gear (14253), the lower end of the lifting rack (14254) is connected with the quenching support (1424), a guide wheel mounting plate (14255) is connected onto the side wall of the transmission gear box (14251), the guide wheel mounting plate (14255) is rotatably provided with a guide wheel (14256), the guide wheel (14256) is attached to the non-tooth end of the lifting rack (14254), the two salt solution stirring mechanisms (145) are respectively mounted under the two quenching lifting mechanisms (142) in a one-to-one correspondence manner, each salt solution stirring mechanism (145) comprises a stirring wheel (1451) and a drainage plate (1452), the stirring wheel (1451) is mounted at the bottom of the quenching tank body (141), the two drainage plates (1452) are symmetrically mounted on two sides of the stirring wheel (1451), the drainage plates (1452) are arc-shaped plates, the mounting heights of the two drainage plates (1452) are higher than that of the stirring wheel (1451), and the two drainage plates (1452) are arranged and mounted in a splayed manner.

4. A heat treatment line for a bearing component according to claim 1, characterized in that: quenching rear air-cooled cleaning system (15) comprises a first air-cooled chamber (151), a second air-cooled chamber (152), a third air-cooled chamber (153), a first hot washing chamber (154) and a second hot washing chamber (155), wherein the first air-cooled chamber (151), the second air-cooled chamber (152), the third air-cooled chamber (153), the first hot washing chamber (154) and the second hot washing chamber (155) are sequentially arranged from left to right, a self-cleaning material table (1511) is movably mounted in the first air-cooled chamber (151), a material table driving assembly (1512) is further mounted in the first air-cooled chamber (151), the material table driving assembly (1512) is in transmission connection with the self-cleaning material table (1511), a self-cleaning material table (1511) is fixedly mounted in the second air-cooled chamber (152) and the third air-cooled chamber (153), a cleaning lifting mechanism (1211) is mounted in the first hot washing chamber (154) and the second hot washing chamber (155), An air cooler (1513) is installed at the tops of the first air cooling chamber (151), the second air cooling chamber (152) and the third air cooling chamber (153), a roller rod driving belt (8) is installed in the middle of the self-cleaning material platform (1511), water inlet tanks (15111) and water outlet tanks (15112) are respectively arranged on two sides of the roller rod driving belt (8), a plurality of cleaning water tanks (15113) are connected between the water inlet tanks (15111) and the water outlet tanks (15112), the set number of the cleaning water tanks (15113) and the number of the roller rods of the roller rod driving belt (8) are kept consistent, each cleaning water tank (15113) is correspondingly installed below the roller rods one by one, the material platform driving assembly (1512) comprises a push plate (15121) and a material platform driving cylinder (15122), the push plate (15121) is connected to the lower end face of the self-cleaning material platform (1511), and the material platform driving cylinder (15122) is fixedly installed in the first air cooling chamber (151), and the piston rod end of the material table driving cylinder (15122) is connected with the push plate (15121).

5. A heat treatment line for a bearing component according to claim 1, characterized in that: install translation butt joint material platform (16) on the vacancy between leading belt cleaning device (12) and quenching heating furnace (13), translation butt joint material platform (16) is including translation track frame (161), material platform dolly (162), be equipped with two parallel arrangement's translation rail (1611) on translation track frame (161), material platform dolly (162) movingly install on two translation rails (1611), docking platform (163) are installed to material platform dolly (162) upper end, install roller stick drive belt (8) on docking platform (163), install dolly actuating cylinder (164) on translation track frame (161), dolly push pedal (165) is installed to material platform dolly (162) bottom, the tailpiece of the piston rod of dolly actuating cylinder (164) links to each other with dolly push pedal (165).

6. A heat treatment line for a bearing component according to claim 5, characterized in that: a third track group (6) is installed between the quenching heating furnace (13) and the salt bath quenching device (14), a transposition material receiving platform (17) is movably installed on the third track group (6), the transposition material receiving platform (17) comprises a longitudinal moving chassis (171), a translation material receiving platform (16) is installed at the upper end of the longitudinal moving chassis (171), a longitudinal moving driving mechanism (172) is installed at the lower end of the longitudinal moving chassis (171), the longitudinal moving driving mechanism (172) comprises a wheel shaft (1721) and a wheel driving motor (1723), the wheel shaft (1721) is rotatably installed at the lower end of the longitudinal moving chassis (171), a pair of traveling wheels (1722) is installed on the wheel shaft (1721), and the wheel shaft (1721) is in transmission connection with the wheel driving motor (1723).

7. A heat treatment line for a bearing component according to claim 1, characterized in that: two cleaning lifting mechanisms (1211) are installed in the cold cleaning device (21), a plurality of cold air pipes (12411) are installed in the draining chamber (22), a water collecting area (1223) is arranged in the draining chamber (22), a water collecting pore plate (1224) is obliquely installed in the draining chamber (22), a hot air fan (12421) is installed in the drying chamber (23), two tempering feed inlets (241) are arranged on the right side of the tempering furnace (24), two tempering discharge outlets (242) are arranged on the left side of the tempering furnace (24), an upper layer of roller rod transmission belt (8) and a lower layer of roller rod transmission belt (8) are installed on the tempering furnace (24), the tempering feed inlets (241) and the tempering discharge outlets (242) are respectively installed corresponding to the two layers of roller rod transmission belts (8), flip sealing doors (transmission belts (243) are installed on the tempering feed inlets (241) and the discharge outlets (242), and a lifting feed and discharge device (244) is respectively installed on the left side and the right side of the tempering furnace (24), the lifting feeding and discharging device (244) comprises a main frame (2441), a supporting beam (2442), a conveying material rack (2443) and a material rack lifting cylinder (2444), the main frame (2441) comprises two upright columns (24411) and a cross beam (24412), the two upright columns (24411) and the cross beam (24412) are overlapped to form a door-shaped frame, one end of the supporting beam (2442) is connected to the outer wall of the tempering furnace (24), the other end of the supporting beam is connected to the main frame (2441), the conveying material rack (2443) is arranged in the main frame (2441) in a lifting mode, the material rack lifting cylinder (2444) is arranged on the cross beam (24412), the piston rod end of the material rack lifting cylinder (2444) is connected with the conveying material rack (2443), a roller rod driving belt (8) is arranged on the conveying material rack (2443), the tempering post-positioned air cooling device (25) comprises four air cooling tables (251), and the discharging transitional material table group (26) comprises a plurality of fixed material tables (111), a transfer material table group (27) is arranged between the draining chamber (22) and the drying chamber (23), and the transfer material table group (27) comprises two fixed material tables (111).

8. A heat treatment line for a bearing component according to claim 6, wherein: lifting and conveying material platform (4) include cross rod elevating system (41), lifting and conveying material platform (4) adopt to indulge and move chassis (171) and indulge and move actuating mechanism (172) and remove the structure as the chassis, cross rod elevating system (41) are installed and are indulged on moving chassis (171), conveying platform (42) are installed to cross rod elevating system (41) upper end, install roller stick drive belt (8) on conveying platform (42).

9. A heat treatment line for a bearing component according to claim 6, wherein: and the third track group (6) and the second track group (5) are provided with isolating material platforms (7) at the sides.