CN215251013U - Quenching heating furnace for heat treatment processing of bearing component - Google Patents

Abstract

The utility model discloses a quenching heating furnace for heat treatment processing of bearing parts, which comprises a vacuum air exchange chamber, a transition chamber, a preheating chamber, a heating chamber and a rear air exchange chamber, wherein the functional chambers are sequentially arranged from left to right, heating pipes are arranged in the preheating chamber, the heating chamber and the rear air exchange chamber, 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 are provided with heat-insulating partition walls, heat-insulating partition walls on the left side and the right side of the heating chamber are provided with heat-insulating partition mechanisms, a steam recovery cover is arranged on the outer side wall of the outlet position of the rear air exchange chamber, and a roller bar driving belt is arranged in the quenching heating furnace in a left-right through way, the utility model solves the problem that the air entering the furnace along with the workpiece cannot be completely discharged by additionally arranging the vacuum air exchange chamber, the usage amount of protective gas can also be effectively saved, the production cost is reduced, the utility model designs a brand-new heat-insulating partition mechanism in the partition walls on the two sides of the heating chamber, can effectively separate adjacent functional chambers and has good heat insulation effect.

Description

Quenching heating furnace for heat treatment processing of bearing component

Technical Field

The utility model belongs to the technical field of thermal treatment processing technique and specifically relates to a bearing part is quenching heating furnace for thermal treatment processing.

Background

The bearing is a common rotary part in modern mechanical equipment, the bearing steel ring is an important component of the bearing, the bearing steel ring needs to change the metal property of the bearing steel ring through a series of heat treatment operations to meet the use requirement in the bearing, the bearing part needs to be heated in a heating furnace before quenching, the traditional heating furnace adopts a working mode that a workpiece directly enters the furnace for heating, the workpiece is exposed in the air before entering the furnace, the workpiece can bring in the air when entering the furnace, the air entering can influence the heating effect, therefore, the traditional heating furnace adopts fire curtain sealing at an inlet and increases the protective air pressure, the protective air is used for pressing and exhausting the entering air, the fire curtain sealing can form flame at the inlet of the heating furnace, certain production risk exists, the method of pressing and exhausting the air by increasing the protective air pressure is adopted, the entering air cannot be completely exhausted, the large amount of loss of protective gas can also be caused, the production cost is increased, and due to the requirement of workpiece circulation, effective heat insulation can not be achieved between all the function chambers in the traditional heating furnace, and the problems of channeling and low heat energy utilization rate exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a quenching heating furnace for heat treatment of bearing parts.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a bearing part is quenching heating furnace for thermal treatment processing, includes vacuum scavenging chamber, transition room, preheating chamber, heating chamber, back scavenging chamber, vacuum scavenging chamber, transition room, preheating chamber, heating chamber, back scavenging chamber arrange from a left side to the right side in proper order, all install the heating pipe in preheating chamber, heating chamber, the back scavenging chamber, the juncture position of transition room and preheating chamber, the left and right sides of heating chamber, the exit position of back scavenging chamber all are equipped with the heat preservation partition wall, install heat preservation partition mechanism on the heat preservation partition wall of the heating chamber left and right sides, install steam recovery cover on the exit position lateral wall of back scavenging chamber, the through-going roller stick drive belt of installing about in the quenching heating furnace.

And lifting sealing door mechanisms are arranged on two sides of an inlet and an outlet of the vacuum air exchange chamber, and the vacuum air exchange chamber is connected with a vacuum tube and a nitrogen tube.

The heating chamber is internally provided with four heating zones, four circulating fans are installed at the top of the heating chamber, each circulating fan is correspondingly installed in one heating zone, the top of the heating chamber is provided with a furnace top heat-insulating layer, the side wall and the bottom of the heating chamber are provided with furnace body heat-insulating layers, the furnace body heat-insulating layers are sequentially arranged into heat-insulating plates, nano plates, heat-insulating bricks and anti-carburizing bricks from inside to outside, and the top of the back ventilation chamber is provided with a ventilation pipe.

The middle parts of heat-insulating partition walls on the left side and the right side of the heating chamber are provided with material inlet and outlet through holes, spring mounting holes are arranged below the material inlet and outlet through holes, partition plate lifting holes are arranged above the material inlet and outlet through holes, a movement frame limiting plate is arranged at the orifice 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 mounted in the partition plate lifting holes, the partition driving cylinder is mounted at the top of the quenching heating furnace, the piston rod end of the partition driving cylinder is connected with the upper end of the partition plate, the carrier roller movement frame is movably mounted in the spring mounting holes, the lower end of the spring is connected with the hole bottom of the spring mounting hole, the upper end of the spring is connected onto the lower end surface of the carrier roller movement frame, two transmission rollers are rotatably mounted on the carrier roller movement frame, and lower pressing vertical plates are arranged in the middle parts of the two transmission rollers, the highest point of the downward pressing vertical plate is lower than the highest points of the two transmission rollers, the lower end of the partition plate is connected with a downward pressing convex block, and the downward pressing convex block is installed right opposite to the downward pressing vertical plate.

The utility model has the advantages that: the utility model discloses installed the vacuum room of taking a breath additional before the zone of heating, solved through the vacuum room of taking a breath and advanced the unable clean difficult problem of air of stove along with the work piece, the use amount of protective gas also can effectively be saved, has reduced manufacturing cost, the utility model discloses designed brand-new heat preservation in the wall of heating chamber both sides and cut off the mechanism, can effectively cut off adjacent function room, play good heat preservation effect that separates.

Drawings

FIG. 1 is a plan view of a heat treatment line for a bearing member to which the present invention is applied;

FIG. 2 is an internal structural view of a front cleaning apparatus of a heat treatment line for a bearing member to which the present invention is applied;

FIG. 3 is a front view structural view of a lifting seal door mechanism of a heat treatment line for a bearing member to which the present invention is applied;

FIG. 4 is a schematic view of the lifting structure of the cleaning lifting mechanism of the heat treatment line for bearing parts according to the present invention;

FIG. 5 is an internal structure view of the quenching furnace of the present invention;

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

FIG. 7 is a schematic structural view of the furnace body heat-insulating layer of the present invention;

FIG. 8 is an internal structural view of a salt bath quenching apparatus of a heat treatment line for a bearing member to which the present invention is applied;

FIG. 9 is a schematic view showing the elevation structure of the quenching elevating mechanism of the heat treatment line for bearing parts according to the present invention;

fig. 10 is a front view of a transmission structure of a rack driving assembly of a heat treatment line of a bearing component to which the present invention is applied;

fig. 11 is a top view of a transmission structure of a rack driving assembly of a heat treatment line for bearing components according to the present invention;

FIG. 12 is a schematic structural view of a post-quenching air-cooling cleaning system of a heat treatment line for bearing components according to the present invention;

FIG. 13 is a schematic view showing an internal structure of a first air-cooling chamber of a heat treatment line for a bearing member to which the present invention is applied;

FIG. 14 is a top view of a self-cleaning material table of a heat treatment line for bearing members to which the present invention is applied;

FIG. 15 is a plan view of a translation butt-joint material table of a heat treatment line for a bearing member to which the present invention is applied;

FIG. 16 is a front view structural view of a translation butt-joint material table of a heat treatment line for a bearing member to which the present invention is applied;

FIG. 17 is a front view of a material receiving table for a heat treatment line of a bearing member according to the present invention;

FIG. 18 is a view showing the arrangement of a cold cleaning apparatus and a drain chamber in a heat treatment line for a bearing member according to the present invention;

FIG. 19 is an internal structural view of a tempering furnace of a heat treatment line for a bearing member to which the present invention is applied;

FIG. 20 is a view showing a lifting structure of a lifting/lowering mechanism of a heat treatment line for a bearing member according to the present invention;

fig. 21 is a schematic structural view of a lifting/lowering material conveying table of a heat treatment line for bearing members according to 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 orifice 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, heat preservation layer 1353, furnace body heat preservation layer 1354, 13541, nano plate 13542, Thermal insulation brick 13543, anti-carburizing brick 13544, rear air-exchange chamber 136, air-exchange pipe 1361, thermal insulation partition wall 137, material inlet and outlet through hole 1371, spring mounting hole 1372, partition plate lifting hole 1373, moving frame limit plate 1374, thermal insulation partition mechanism 138, partition plate 1381, downward pressing bump 13811, partition driving cylinder 1382, carrier roller moving frame 1383, driving roller 13831, downward 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, guide wheel 14256, air-cooled pipe 143, salt solution quenching area 144, salt solution stirring mechanism 145, stirring wheel 1451, drainage plate 1452, quenching rear air-cooled cleaning system 15, first air-cooled 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 assembly 1512, a push plate 15121, a material table driving cylinder 15122, an air cooler 1513, 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 translation material butt-joint table 16, a translation rail frame 161, a translation rail 1611, a material table trolley 162, a butt-joint platform 163, a trolley driving cylinder 164, a trolley push plate 165, a transposition material butt-joint 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 material inlet, a tempering material outlet 242, a cover sealing door 243, a lifting material inlet and outlet device 244, a main frame 2441, a column 24411, a cross beam 24412, a supporting beam 2442, a conveying cylinder 43, a lifting cylinder 2444, a lifting cylinder 44, The device comprises a tempering post-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 accompanying drawings and specific embodiments, wherein the descriptions of "left", "right", etc. in the present invention all refer to fig. 1 as the reference direction:

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 part is cleaned, the tempering line 2 is sequentially and linearly arranged from right to left with a cold cleaning device 21, a draining chamber 22, a drying chamber 23, a tempering furnace 24, an air cooling device 25 arranged after tempering and a 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, cleanness of the bearing part is ensured, then the bearing part is drained and dried in the draining chamber 22 and the drying chamber 23 respectively, and then tempering operation is carried out in the tempering furnace 24, the bearing part output after tempering is subjected to temperature reduction 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, the bearing part is placed in a bearing part mounting basket to circulate in the whole heat treatment process, the quenching line 1, the cooling device, the draining device and the tempering device are arranged in the bearing part mounting basket for cooling and drying, and the bearing part, and the tempering line 2 are arranged in the whole heat treatment process, and the tempering line is arranged in the heat treatment basket for cooling device, and the bearing part, and the tempering line, The utility model discloses a heat treatment device for the bearing parts, which comprises a tempering line 2, a first track group 3 installed on the left side of the tempering line 2, a second track group 5 installed on the right side of the tempering line 1 and the tempering line 2, wherein the first track group 3 and the second track group 5 both comprise two parallel running tracks 31, a lifting conveying material platform 4 is respectively installed on the first track group 3 and the second track group 5, the lifting conveying material platform 4 on the first track group 3 plays the role of inputting and outputting the bearing part materials, the lifting conveying material platform 4 on the second track group 5 plays the role of transferring the bearing part materials after the operation of the tempering line 1 to the tempering line 2, the utility model discloses design and arrangement is specially designed according to the heat treatment process of the bearing part, 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 clear 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 cleaning water falls and is collected to the water collecting area 1223 for centralized treatment, the water collecting pore plate 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, the air entering can influence the heating effect, the traditional heating furnace can adopt fire curtain sealing at the inlet, the pressure of the protective gas is increased, the protective gas is used for pressing and discharging the entering air, the fire curtain sealing can form flame at the inlet of the heating furnace, certain production risk exists, the method of pressing and discharging the air by increasing the pressure of the protective gas is adopted, the entering air cannot be completely discharged, a large amount of loss of the protective gas can be caused, and the production cost is increased, therefore, the utility model adds an independent vacuum ventilation 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 ventilation chamber 131, the vacuum ventilation chamber 131 is connected with a vacuum tube 1311 and a nitrogen tube 1312, when the inlet of the vacuum ventilation chamber 131 is opened, the outlet of the vacuum ventilation 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 conventional heating furnace, because of the requirement of workpiece circulation, the heating chamber 135, the preheating chamber 133 and the back scavenging chamber 136 cannot be well sealed, so that the temperature channeling phenomenon can occur, the heat energy loss of the heating chamber 135 is large, the utility model designs a 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 the 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 piston rod of the partition driving cylinder 1382 stretching and contracting, the partition plate 1381 plays a sealing role for the material passing through hole 1371, the carrier roller moving frame 1383 is movably arranged in the 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 is required 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 to finish the partition of the heat-preserving partition wall 137, when a workpiece is required to be circulated, the partition plate 1381 rises, the carrier roller moving frame 1383 loses the lower pressure, 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, easily adsorb on roller stick drive belt 8, cause the influence to its life, therefore the utility model designs the structure of self-cleaning material platform 1511, self-cleaning material platform 1511 mid-mounting has roller stick drive belt 8, for the circulation transmission, roller stick drive belt 8 both sides are equipped with water inlet tank 15111, play water tank 15112 respectively, be connected with a plurality of washing basin 15113 between water inlet tank 15111 and play water tank 15112, wash water flows to play water tank 15112 through washing basin 15113 from water inlet tank 15111, the quantity of setting up of washing basin 15113 keeps unanimous with the roller stick quantity of roller stick drive belt 8, every washing basin 15113 is installed under the roller stick one-to-one, the roller stick lower extreme contacts with washing water, like this way along with the rotation of roller stick, the salt solution on roller stick surface can be taken away by washing water, prevent the salt phenomenon that appears on roller stick surface, play water tank 15112 tube coupling to salt water separator 18 and carry out the salt water separation operation, separated clean water is recycled to the case 15111 of intaking again for water resource ability make full use of, material platform drive assembly 1512 includes push pedal 15121, material platform actuating cylinder 15122, push pedal 15121 is connected on the terminal surface under the self-cleaning material platform 1511, material platform actuating cylinder 15122 fixed mounting is in first air-cooled chamber 151, material platform actuating cylinder 15122 tailpiece of the piston rod end links to each other with push pedal 15121, can promote to remove about self-cleaning material platform 1511 through material platform actuating cylinder 15122, satisfy the butt joint operation demand.

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 track group 6 is arranged between the quenching heating furnace 13 and the salt bath quenching device 14, the transposition material butt-joint platform 17 is movably arranged on the third track group 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 track group 6, so that the longitudinal moving chassis 171 and the longitudinal moving driving mechanism 172 are needed to realize the traveling on the third track group 6, and the butt-joint 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 the waste gas burned 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 return 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 space in the furnace 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 utility model 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 a 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 rack 2443 and a rack lifting cylinder 2444, the main frame 2441 comprises two upright columns 24411 and a cross beam 24412, the two upright columns 24411 and a 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 preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (4)

1. The utility model provides a bearing part heat treatment is with quenching heating furnace, includes vacuum scavenging chamber (131), transition room (132), preheating chamber (133), heating chamber (135), back scavenging chamber (136), its characterized in that: the device 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 heating chamber (135) and the rear air exchange chamber (136) are sequentially arranged from left to right, heating pipes (134) are respectively arranged in the preheating chamber (133), the heating chamber (135) and the rear air exchange chamber (136), heat-insulating partition walls (137) are respectively 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), heat-insulating partition mechanisms (138) are arranged on the heat-insulating partition walls (137) at the left side and the right side of the heating chamber (135), a steam recovery cover (139) is arranged on the outer side wall of the outlet position of the rear air exchange chamber (136), and a roller rod transmission belt (8) is arranged in the quenching heating furnace (13) in a left-right through mode.

2. The quenching furnace for heat treatment processing of a bearing member as claimed in claim 1, wherein: and lifting sealing door mechanisms (125) are installed on two sides of an inlet and an outlet of the vacuum air exchange chamber (131), and the vacuum air exchange chamber (131) is connected with a vacuum pipe (1311) and a nitrogen pipe (1312).

3. The quenching furnace for heat treatment processing of a bearing member as claimed in claim 1, wherein: the heating furnace is characterized in that 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), 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 walls and the bottom of the heating chamber (135), the furnace body heat-insulating layers (1354) are sequentially arranged from inside to outside as heat-insulating plates (13541), nano-plates (13542), heat-insulating bricks (13543) and anti-carbon permeation bricks (13544), and a ventilation pipe (1361) is arranged at the top of the post-ventilation chamber (136).

4. The quenching furnace for heat treatment processing of a bearing member as claimed in claim 1, wherein: the heat preservation partition wall (137) of the heating chamber (135) left and right sides middle part 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 lifting hole (1373), motion frame limiting plate (1374) is installed to spring mounting hole (1372) drill way position, heat preservation partition mechanism (138) is including partition panel (1381), cuts off driving cylinder (1382), bearing roller motion frame (1383), spring (1384), partition panel (1381) movable mounting is in partition panel lifting hole (1373), cut off driving cylinder (1382) and install at quenching heating furnace (13) top, the piston rod end that cuts off 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, bearing roller motion frame (1383) are gone up to rotate and are installed 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) are just being installed to pushing down riser (13832).

Images