CN117965872A - Heat treatment device for bearing ring and heat treatment process using same - Google Patents

Abstract

The application relates to a heat treatment device of a bearing ring and a heat treatment process using the device, comprising a frame, wherein a heating box is arranged on the frame, a preheating cavity and a heating cavity are arranged in the heating box, a transportation assembly is arranged on the frame, the transportation assembly comprises a plurality of rotating rollers, rotating parts and a driving mechanism, a supporting plate is arranged on the frame, rotating grooves are arranged on the supporting plate and are annularly distributed, a plurality of rotating rollers are mutually arranged in parallel and are rotatably arranged at the rotating grooves, the rotating parts are arranged at one end of the rotating rollers, and the driving mechanism is arranged on the frame; the bearing ring is placed at the rotating roller, the driving mechanism drives the rotating piece to rotate, the rotating roller is driven to move, the bearing ring is transported into the preheating cavity, the bearing ring is preheated by the preheating cavity of the heating box and then is transported to the heating cavity for heating, and the rotating roller rotates to drive the bearing ring to rotate during transportation.

Description

Heat treatment device for bearing ring and heat treatment process using same

Technical Field

The application relates to the field of heat treatment of bearing rings, in particular to a heat treatment device of a bearing ring and a heat treatment process using the device.

Background

The bearing ring is an annular part of a radial rolling bearing with one or several raceways. In order to change various mechanical, physical and chemical properties of metals and cold and hot processing properties of metals so that the metal can meet the purpose of design requirements, heat treatment of bearing rings is required.

In the related art, the Chinese patent with the publication number of CN112725608B can be consulted, which discloses a bearing ring heat treatment device, comprising a conveying mechanism, a heating mechanism, a cooling pond, a material receiving box and a supporting structure, wherein the heating mechanism is arranged in the middle of the conveying mechanism, the cooling pond is arranged below one end of the conveying mechanism, the material receiving box is arranged below the other end of the conveying mechanism, the supporting structure is fixedly connected to the outer walls of two sides of the conveying mechanism, the bearing ring is placed at one end of the top of a first fixing frame during heating, the first fixing frame and a second fixing frame are combined to form the fixing frame for fixing the bearing ring, heating coils on two sides in a heat shield heat the bearing ring, and the bearing ring is sequentially processed through a conveying belt arranged for heating, quenching and cooling and automatic discharging, so that the processing efficiency of the bearing heat treatment is improved, the energy consumption and the labor intensity in the whole heat treatment process are reduced, manual operation is not needed, the burn of a metal part which needs to be close to heating during manual operation to the human body is avoided, and the production safety and the production efficiency are improved.

In the related art, the bearing ring is placed on the first fixing frame for transportation, the bearing ring is fixed by the fixing frame formed by combining the first fixing frame and the second fixing frame, only two sides of the bearing ring are heated during heating, the heating of the bearing ring is uneven, and the performance of the bearing ring is greatly affected during subsequent processing.

Disclosure of Invention

In order to solve the problem that the bearing ring is heated unevenly when the two sides of the bearing ring are heated, the application provides a heat treatment device for the bearing ring and a heat treatment process using the device.

In a first aspect, the present application provides a heat treatment device for a bearing ring, which adopts the following technical scheme:

the utility model provides a heat treatment device of bearing ring, includes the frame, be provided with the heating cabinet in the frame, be provided with preheating chamber and heating chamber in the heating cabinet, be located in the heating cabinet heating chamber department is provided with the heating member, be located in the heating cabinet preheating chamber department is provided with the preheating member, be provided with the transportation subassembly in the frame, the transportation subassembly includes a plurality of live-rollers, rotation piece and actuating mechanism, be provided with the backup pad in the frame, be provided with the rotation groove in the backup pad, the rotation groove is cyclic annular distribution, a plurality of live-rollers parallel arrangement each other and rotate and install the rotation groove department of backup pad, the bearing ring is placed on two adjacent live-rollers, the axis of bearing ring with the live-roller axis is parallel to each other, the rotation piece sets up live-roller one end department, actuating mechanism sets up in the frame, actuating mechanism is used for the drive the rotation piece rotates, be located in the live-roller upside is provided with spacing frame, the frame is located the heating cabinet deviates from live-roller one side is provided with feed mechanism, feed mechanism is used for to the feed to the material in the heating cabinet.

Through adopting above-mentioned technical scheme, place the loading mechanism department with the bearing ring and feed, loading mechanism places the bearing ring in the live-rollers department of preheating chamber one side, and the bearing ring is located two adjacent live-rollers upside, and actuating mechanism drives the rotation piece and rotates, and then drives the live-rollers and remove and then transport the bearing ring to preheating the intracavity, preheat the chamber through the heating cabinet and preheat the back and carry to heating chamber department and heat, the live-rollers rotates and drives the bearing ring rotation during the transportation, and the side of bearing ring is heated everywhere.

Optionally, the rotating member includes the synchronizing wheel, the synchronizing wheel with the coaxial setting of rotor, actuating mechanism includes hold-in range and first actuating member, the hold-in range rotate install in the frame and with synchronizing wheel one side meshing, first actuating member sets up in the frame, first actuating member is used for the drive the hold-in range rotates, be provided with first ring gear in the backup pad, first ring gear is followed rotate the groove and distribute, the synchronizing wheel deviates from hold-in range one side with first ring gear meshing.

Through adopting above-mentioned technical scheme, first driving piece drives the hold-in range and rotates, and the hold-in range drives the synchronizing wheel and rotates, and the synchronizing wheel drives the live-rollers and rotates, and the first ring gear of following the meshing when the synchronizing wheel rotates removes, drives the live-rollers and removes and then transport bearing ring, drives bearing ring and rotate on the live-rollers when carrying bearing ring, and bearing ring is heated evenly.

Optionally, the first driving piece includes first motor and first gear, first motor sets up in the frame, first gear sets up the output shaft department of first motor, the hold-in range deviates from be provided with the rack on the side of synchronizing wheel, first gear with the hold-in range is located rack department meshing.

Through adopting above-mentioned technical scheme, first motor drives first gear rotation, and first gear drives the rack and then drives the hold-in range and remove, and the hold-in range drives the synchronizing wheel and rotates, and the drive operation is comparatively convenient.

Optionally, the spacing includes spacing frame and spacing, spacing frame sets up in the heating cabinet and be located the live-rollers upside, spacing sets up on the spacing frame, when bearing ring is placed on the live-rollers, spacing is located between two adjacent bearing rings.

Through adopting above-mentioned technical scheme, when the bearing ring is placed on the live-action roller, the bearing ring is located between spacing, and when the bearing ring transportation, reduces bearing ring position deviation and falls the probability in the heating cabinet askew.

Optionally, feed mechanism includes second driving piece and rolling disc, be located in the frame heating cabinet one side is provided with the material loading frame, the second driving piece sets up material loading frame one side, the rolling disc rotates and installs on the material loading frame, slide on the rolling disc and install the bracing piece, the bearing ring is placed during the material loading on the bracing piece.

Through adopting above-mentioned technical scheme, place bearing ring on the bracing piece, the second driving piece drives the rolling disc and rotates and then drive the bracing piece and rotate, and when the bracing piece rotated to the live-rollers department, the bearing ring was placed in the live-rollers upside, and the bracing piece that slides this moment deviates from to the rolling disc one side, and the second motor rotates and drives the rolling disc and rotate and then drive next bracing piece to live-rollers department material loading, and material loading operation is comparatively convenient.

Optionally, the second driving piece includes second motor and second gear, be provided with the second ring gear on the periphery lateral wall of rolling disc, the second gear rotate install on the material loading frame and with the rolling disc is located second ring gear department meshing, the second motor sets up in the frame, the second gear with the output shaft of second motor.

Through adopting above-mentioned technical scheme, the second motor drives the second gear and rotates, and the second gear drives the second ring gear rotation of engaged with, and then drives the rolling disc rotation, and the pivoted operation of drive rolling disc is comparatively convenient.

Optionally, the frame is located with the department that the material loading frame is relative is provided with the impeller, the impeller includes actuating cylinder and ejector pad, actuating cylinder sets up in the frame, the ejector pad sets up actuating cylinder's drive end, works as the bracing piece rotates to the live-rollers department, actuating cylinder drive the ejector pad promotes the bracing piece slides.

Through adopting above-mentioned technical scheme, drive cylinder drives the ejector pad and promotes the bracing piece and slide, and the bracing piece slides to being located when rotating disk one side department, and drive cylinder drives the ejector pad position and resumes, accomplishes the material loading of bearing ring, material loading convenient operation is swift.

Optionally, a quenching tank is arranged at one side of the heating box, a blanking plate is obliquely arranged at one side of the heating box, one side of the blanking plate is connected with the quenching tank, and a blanking tank is arranged on the blanking plate.

Through adopting above-mentioned technical scheme, during the ejection of compact, the bearing ring carries to quenching tank department along the unloading groove of flitch to quench, can in time quench after heating, and it is comparatively convenient to carry the bearing ring operation through unloading groove.

Optionally, baffles are arranged on the blanking plate and located at two sides of the blanking groove.

By adopting the technical scheme, the bearing ring is transported along the baffle, so that the probability of falling out of the blanking groove is reduced.

In a second aspect, the present application provides a heat treatment process, which adopts the following technical scheme:

S1, preprocessing, namely pre-cleaning and drying a bearing ring;

S2, heating, namely placing the bearing ring treated by the step S1 into the heat treatment equipment in the first aspect for heating;

S3, quenching, namely placing the bearing ring heated in the S2 into cooling brine for quenching;

S4, post-cleaning, namely taking out the bearing ring after the step S3 is completed, cleaning and drying;

S5, tempering, namely placing the bearing ring treated in the S4 into a tempering box for low-temperature tempering;

S6, quality inspection and boxing are transferred to a grinding workshop, the quality inspection is carried out after the bearing ring after the completion of the S5 is taken out, and boxing is transferred to the grinding workshop for grinding operation after the quality inspection is qualified.

By adopting the technical scheme, firstly, the bearing ring is cleaned before being dried, then the bearing ring is placed in a heating box for heating, the heated bearing ring is placed in cooling brine for quenching, the quenched bearing ring is taken out and then cleaned and dried, then the bearing ring is immediately placed in a tempering box for low-temperature tempering, and finally, quality inspection and boxing are carried out, and the bearing ring is transferred to the next working procedure; the bearing ring is preheated, partial stress is eliminated, deflection and deformation during quenching are reduced, the bearing ring is quenched and tempered at low temperature in time, the probability of overhigh hardness of the bearing ring is reduced, and meanwhile brittleness of the bearing ring is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The feeding mechanism is used for placing the bearing ring at the rotating roller on one side of the preheating cavity, the bearing ring is positioned on the upper sides of the two adjacent rotating rollers, the driving mechanism drives the rotating parts to rotate, the rotating rollers are driven to move so as to transport the bearing ring into the preheating cavity, the bearing ring is preheated by the preheating cavity of the heating box and then transported to the heating cavity for heating, the rotating rollers rotate to drive the bearing ring to rotate during transportation, and the side surfaces of the bearing ring are heated uniformly all the time;

2. When the bearing ring is placed on the rotating roller, the bearing ring is positioned between two adjacent limiting strips, and the probability that the bearing ring is deviated in position and falls into the heating box in a tilting manner in the bearing ring transportation process is reduced;

3. the bearing rings are conveyed to the quenching tank along the blanking groove of the blanking plate for quenching, and can be quenched in time after being heated, and the bearing rings are conveyed through the blanking groove for more convenient operation.

Drawings

Fig. 1 is a schematic perspective view of the present application.

Fig. 2 is a cross-sectional view of the application in the transport direction of the bearing ring.

Fig. 3 is a schematic view of a sectional structure along an axial direction of a rotating roller of the present application.

Fig. 4 is an enlarged cross-sectional view of the C section of the present application.

Fig. 5 is an enlarged perspective view of the portion B of the present application.

Fig. 6 is a schematic view of a partial perspective structure of a feeding mechanism of the present application.

Fig. 7 is an enlarged perspective view of the portion a of the present application.

Skilled artisans will appreciate that elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions and positioning of some of the elements in the figures may be exaggerated relative to other elements to help to improve understanding of embodiments of the present invention.

Reference numerals: 1. a frame; 11. a support plate; 111. a rotating groove; 112. a fixed block; 113. a first ring gear; 114. a shield; 2. a heating box; 21. a partition plate; 22. a preheating chamber; 23. a heating chamber; 24. a feed inlet; 25. a discharge port; 26. a preheating piece; 261. preheating a coil; 27. a heating member; 271. a heating coil; 3. a transport assembly; 31. a rotating roller; 311. a rotating wheel; 32. a rotating member; 321. a synchronizing wheel; 4. a driving mechanism; 41. a synchronous belt; 411. a rack; 42. a first driving member; 421. a first motor; 422. a first gear; 423. a mounting plate; 5. a limiting frame; 51. a limit frame; 511. a fixing strip; 512. a connecting strip; 52. a limit bar; 6. a feeding mechanism; 61. a second driving member; 611. a second motor; 612. a second gear; 62. a rotating disc; 621. a slip hole; 622. a second ring gear; 63. a feeding frame; 631. a mounting groove; 64. a support rod; 641. a groove; 7. a pushing member; 71. a driving cylinder; 72. a pushing block; 8. a quenching tank; 81. a blanking plate; 811. discharging groove; 812. and a baffle.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings.

The embodiment of the application discloses a heat treatment device for a bearing ring, referring to fig. 1 and 2, the heat treatment device comprises a frame 1, a heating box 2 is arranged on the frame 1, a partition plate 21 is arranged in the heating box 2, the partition plate 21 is distributed along the width direction of the heating box 2, the heating box 2 is divided into a preheating cavity 22 and a heating cavity 23 by the partition plate 21, the preheating cavity 22 and the heating cavity 23 are sequentially distributed along the length direction of the frame 1, a feeding port 24 is arranged at one side surface of the heating box 2, which is far away from the heating cavity 23, of the preheating cavity 22, a discharging port 25 is arranged at one side surface of the heating box 2, which is opposite to the heating cavity 23, a preheating piece 26 is arranged in the preheating cavity 22, the preheating piece 26 comprises a preheating coil 261, the preheating coil 261 is arranged at two inner side walls and the top wall of the preheating cavity 22 of the heating box 2, the heating piece 27 is arranged in the heating cavity 23, the heating piece 27 comprises a heating coil 271, the heating coil is arranged at the two inner side walls and the top wall of the heating cavity 23 in the length direction of the heating box 2, the bearing enters the heating box 2 cavity 22 through the feeding port 24, the preheating piece 261, the preheating piece is preheated by the preheating coil 261, and the heating box 2 is transported to the heating box 23 through the heating box 271, and the heating box 23.

Referring to fig. 1 and 2, a transporting assembly 3 is provided on a frame 1, the transporting assembly 3 includes a plurality of rotating rollers 31, rotating members 32 and a driving mechanism 4, a supporting plate 11 is provided on the frame 1, the supporting plate 11 is provided below and vertically on opposite sides of the length direction of the heating box 2, and the supporting plate 11 is distributed along the length direction of the frame 1.

Referring to fig. 2, a support plate 11 is provided with annular rotating grooves 111, rotating rollers 31 are distributed along the width direction of a heating box 2, rotating wheels 311 are coaxially arranged at two ends of each rotating roller 31 and the rotating rollers 31, the rotating wheels 311 are rotatably arranged at the rotating grooves 111 of the support plate 11, a plurality of rotating rollers 31 are mutually parallel and are arranged along the rotating grooves 111, the rotating roller 31 at the upward side is positioned at the inner side of the heating box 2, during heating, bearing rings are placed on two adjacent rotating rollers 31, and the axes of the bearing rings are mutually parallel to the axes of the rotating rollers 31.

Referring to fig. 2 and 3, the upper side department that just is located the rotor roller 31 in the heating cabinet 2 is provided with spacing 5, spacing 5 includes spacing frame 51 and spacing 52, spacing frame 51 includes fixed strip 511 and connecting strip 512, fixed strip 511 distributes along the width direction of heating cabinet 2, fixed strip 511 is provided with two and is located the both ends department of the interior length direction of heating cabinet 2 respectively, be provided with a plurality of connecting strip 512 on the fixed strip 511, connecting strip 512 is L type and distributes, connecting strip 512 sets up in the opposite side department of two fixed strips 511, a plurality of connecting strip 512 evenly arranges along the length direction of fixed strip 511, spacing 52 sets up in spacing frame 51 department and spacing 52 distributes along the length direction of heating cabinet 2, spacing 52 both ends are connected with connecting strip 512 of both sides. When the bearing ring is placed on the rotating roller 31, the bearing ring enters from between two adjacent connecting strips 512, and when the bearing ring is heated, the bearing ring is positioned between two adjacent limiting strips 52, and in the rotating and transporting process of the bearing ring, the limiting strips 52 limit the left side and the right side of the bearing ring, so that the probability that the bearing ring is deviated in position and falls into the heating box 2 in a tilting manner is reduced.

Referring to fig. 3 and 4, the rotating member 32 includes a synchronizing wheel 321, the synchronizing wheel 321 is disposed at a side of the rotating wheel 311 facing away from the rotating roller 31 and is disposed coaxially with the rotating roller 31, the driving mechanism 4 includes a synchronous belt 41 and a first driving member 42, the synchronous belt 41 is rotatably mounted on the frame 1, the synchronous belt 41 is disposed at a side of the supporting plate 11 and is distributed along the rotating groove 111, the synchronizing wheel 321 is disposed at an inner side of the synchronous belt 41 and is engaged with the synchronous belt 41, a fixing block 112 is disposed at a side of the supporting plate 11, a first gear ring 113 is fixedly disposed on a circumferential side wall of the fixing block 112, the first gear ring 113 is distributed along the rotating groove 111, and a side of the synchronizing wheel 321 facing away from the synchronous belt 41 is engaged with the first gear ring 113. The supporting plate 11 is provided with the shielding cover 114, the shielding cover 114 is distributed along the length direction of the heating box 2, the shielding cover 114 shields the rotating grooves 111 on two opposite sides of the heating box 2, and heat loss of the heating box 2 is reduced.

Referring to fig. 5, the first driving member 42 includes a first motor 421 and a first gear 422, a mounting plate 423 is disposed on the frame 1 at one side of the support plate 11, the first motor 421 is mounted on the mounting plate 423, an output shaft of the first motor 421 faces one side of the support plate 11, the first gear 422 is disposed at an output shaft of the first motor 421, a rack 411 is disposed on a side of the timing belt 41 facing away from the timing wheel 321, the rack 411 is distributed along a length direction of the timing belt 41, and the first gear 422 is engaged with the timing belt 41 at the rack 411. The first motor 421 drives the first gear 422 to rotate, the first gear 422 drives the synchronous belt 41 to rotate, the synchronous belt 41 drives the meshed synchronous wheel 321 to rotate, the synchronous wheel 321 drives the rotating rollers 31 to rotate, and the bearing rings rotate on the upper sides of the two adjacent rotating rollers 31; the synchronous wheel 321 rotates and moves along the meshed first gear ring 113, drives the rotating roller 31 to move so as to transport the bearing ring on the rotating roller 31, the bearing ring is preheated and then heated, the bearing ring rotates during heating, and the side surfaces of the bearing ring are heated uniformly.

Referring to fig. 1 and 6, a feeding mechanism 6 is disposed on a frame 1at a side of a feed port 24 of a heating box 2, the feeding mechanism 6 includes a second driving member 61 and a rotating disc 62, a feeding frame 63 is disposed on the frame 1at the side of the feed port 24 of the heating box 2 and at a side of a supporting plate 11, the second driving member 61 is disposed on the side of the feeding frame 63, a mounting groove 631 is formed in the feeding frame 63, the rotating disc 62 is rotatably mounted on the side of the mounting groove 631 of the feeding frame 63, four sliding holes 621 are uniformly formed in the rotating disc 62 along a circumferential direction, supporting rods 64 are slidably mounted on the rotating disc 62 at the sliding holes 621, the supporting rods 64 are distributed parallel to the rotating roller 31, the supporting rods 64 rotate in the sliding holes 621, a plurality of grooves 641 are formed in the supporting rods 64, and bearing rings are placed in the grooves 641 of the supporting rods 64.

Referring to fig. 6, the second driving member 61 includes a second motor 611 and a second gear 612, the second gear 612 is rotatably mounted on the upper frame 63, a second gear ring 622 is provided on the circumferential outer sidewall of the rotating disc 62, the second gear 612 is engaged with the rotating disc 62 at the second gear ring 622, the second motor 611 is provided on the upper frame 63 at one side of the second gear 612, and the second gear 612 is connected to an output shaft of the second motor 611. During feeding, the bearing ring is placed at the groove 641 of the supporting rod 64, the second motor 611 drives the second gear 612 to rotate, the second gear 612 drives the meshed second gear ring 622 to further drive the rotating disc 62 to rotate, the rotating disc 62 drives the supporting rod 64 to rotate to the upper side of the rotating roller 31 to stop, and at the moment, the bearing ring is placed on the rotating roller 31 and separated from the supporting rod 64.

Referring to fig. 1 and 7, a pushing member 7 is disposed on the frame 1 at a side opposite to the rotating disc 62, the pushing member 7 includes a driving cylinder 71 and a pushing block 72, the driving cylinder 71 is horizontally disposed on the frame 1 and is parallel to the rotating roller 31, a piston rod of the driving cylinder 71 faces one side of the upper material rack 63, the pushing block 72 is disposed at one end of the piston rod of the driving cylinder 71, after the bearing ring is placed, the driving cylinder 71 drives the pushing block 72 to push the supporting rod 64 to slide to one side of the rotating disc 62, the driving cylinder 71 drives the pushing block 72 to recover in position, and loading of the bearing ring is completed, and at this time, the second motor 611 drives the rotating disc 62 to rotate for next loading.

Referring to fig. 1 and 2, a quenching tank 8 is disposed on a side of a frame 1, which is located at a discharge port 25 of a heating tank 2, a blanking plate 81 is disposed on a side of the frame 1, which is located at the quenching tank 8, the blanking plate 81 is disposed obliquely, a higher side of the blanking plate 81 is located at a lower side of the discharge port 25 of the heating tank 2, the blanking plate 81 is located at the quenching tank 8, a blanking groove 811 is disposed on an upward side of the blanking plate 81, the blanking grooves 811 are disposed along a length direction of the blanking plate 81, the blanking grooves 811 are disposed in a plurality of and mutually parallel distribution, heated bearing rings are transported out of the heating tank 2 through the discharge port 25 by rotating rollers 31, the bearing rings are transported to the quenching tank 8 along the blanking grooves 811 on the blanking plate 81, baffles 812 are disposed at two sides of the blanking plate 81, the bearing rings are distributed along the length direction of the blanking grooves 812, and the probability of falling out of the blanking grooves 811 is reduced.

The implementation principle of the heat treatment device of the bearing ring provided by the embodiment of the application is as follows: the bearing ring is placed at the groove 641 of the supporting rod 64, the second driving piece 61 drives the rotating disc 62 to rotate until the bearing ring is positioned at the upper side of the rotating roller 31, at this time, the bearing ring is separated from the supporting rod 64, the driving cylinder 71 drives the pushing block 72 to push the supporting rod 64 to one side of the rotating disc 62, at this time, the first motor 421 drives the first gear 422 to rotate and then drives the synchronous belt 41 to rotate, the synchronous belt 41 drives the meshed synchronous wheel 321 to rotate, the synchronous wheel 321 drives the rotating roller 31 to rotate, the rotating roller 31 rotates and drives the bearing ring to rotate, and meanwhile, the synchronous wheel 321 moves along the meshed first gear ring 113, at this time, the rotating roller 31 moves, is preheated by the preheating cavity 22 in the heating box 2 and heated by the heating cavity 23, and is transported to the quenching tank 8 to be quenched by the blanking plate 81.

The embodiment of the application discloses a heat treatment process, which comprises the following process steps:

Referring to fig. 1;

S1, preprocessing, namely pre-cleaning and drying a bearing ring;

S2, heating, namely placing the bearing ring treated by the step S1 into the heat treatment equipment in the first aspect for heating;

S3, quenching, namely placing the bearing ring heated in the S2 into cooling brine for quenching;

S4, post-cleaning, namely taking out the bearing ring after the step S3 is completed, cleaning and drying;

S5, tempering, namely placing the bearing ring treated in the S4 into a tempering box for low-temperature tempering;

S6, quality inspection and boxing are transferred to a grinding workshop, the quality inspection is carried out after the bearing ring after the completion of the S5 is taken out, and boxing is transferred to the grinding workshop for grinding operation after the quality inspection is qualified.

The implementation principle of the embodiment of the application is as follows: firstly, cleaning the bearing ring before and drying the bearing ring, then placing the bearing ring in a heating box 2 for heating, placing the heated bearing ring in cooling brine for quenching, taking out the quenched bearing ring, cleaning and drying the bearing ring, then immediately placing the bearing ring in a tempering box for low-temperature tempering, finally, performing quality inspection and boxing, and transferring to the next working procedure; the bearing ring is preheated, partial stress is eliminated, deflection and deformation during quenching are reduced, the bearing ring is quenched and tempered at low temperature in time, the probability of overhigh hardness of the bearing ring is reduced, and meanwhile brittleness of the bearing ring is reduced.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. The utility model provides a heat treatment device of bearing ring, includes frame (1), be provided with heating cabinet (2) on frame (1), be provided with preheating chamber (22) and heating chamber (23) in heating cabinet (2), be located in heating cabinet (2) heating chamber (23) department is provided with heating piece (27), be located in heating cabinet (2) preheating chamber (22) department is provided with preheating piece (26), be provided with transportation subassembly (3) on frame (1), its characterized in that: the conveying assembly (3) comprises a plurality of rotating rollers (31), rotating members (32) and a driving mechanism (4), wherein the supporting plate (11) is arranged on the frame (1), the rotating grooves (111) are annularly distributed, the rotating rollers (31) are arranged in parallel and rotatably arranged at the rotating grooves (111) of the supporting plate (11), bearing rings are placed on the two adjacent rotating rollers (31), the axes of the bearing rings are mutually parallel to the axes of the rotating rollers (31), the rotating members (32) are arranged at one end of the rotating rollers (31), the driving mechanism (4) is arranged on the frame (1), the driving mechanism (4) is used for driving the rotating members (32) to rotate, the heating box (2) is internally provided with a limiting frame (5), the frame (1) is arranged on one side of the heating box (2) which is away from the heating box, and the feeding mechanism (6) is arranged in the heating box (2).

2. A heat treatment device for a bearing ring according to claim 1, characterized in that: the rotating member (32) comprises a synchronizing wheel (321), the synchronizing wheel (321) and the rotating roller (31) are coaxially arranged, the driving mechanism (4) comprises a synchronous belt (41) and a first driving member (42), the synchronous belt (41) is rotatably arranged on the frame (1) and meshed with one side of the synchronizing wheel (321), the first driving member (42) is arranged on the frame (1), the first driving member (42) is used for driving the synchronous belt (41) to rotate, a first gear ring (113) is arranged on the supporting plate (11), the first gear ring (113) is distributed along the rotating groove (111), and one side of the synchronous wheel (321) deviating from the synchronous belt (41) is meshed with the first gear ring (113).

3. A heat treatment device for a bearing ring according to claim 2, characterized in that: the first driving piece (42) comprises a first motor (421) and a first gear (422), the first motor (421) is arranged on the frame (1), the first gear (422) is arranged at an output shaft of the first motor (421), a rack (411) is arranged on one side surface, deviating from the synchronous wheel (321), of the synchronous belt (41), and the first gear (422) is meshed with the synchronous belt (41) at the rack (411).

4. A heat treatment device for a bearing ring according to claim 1, characterized in that: the limiting frame (5) comprises a limiting frame (51) and limiting strips (52), the limiting frame (51) is arranged in the heating box (2) and located on the upper side of the rotating roller (31), the limiting strips (52) are arranged on the limiting frame (51), and when the bearing rings are placed on the rotating roller (31), the limiting strips (52) are located between two adjacent bearing rings.

5. A heat treatment device for a bearing ring according to claim 1, characterized in that: feed mechanism (6) are including second driving piece (61) and rolling disc (62), be located on frame (1) heating cabinet (2) one side is provided with material loading frame (63), second driving piece (61) set up material loading frame (63) one side, rolling disc (62) rotate and install on material loading frame (63), install bracing piece (64) on rolling disc (62) slip, the bearing ring is placed during the material loading on bracing piece (64).

6. A heat treatment device for a bearing ring according to claim 5, characterized in that: the second driving piece (61) comprises a second motor (611) and a second gear (612), a second gear ring (622) is arranged on the peripheral outer side wall of the rotating disc (62), the second gear (612) is rotatably arranged on the feeding frame (63) and meshed with the rotating disc (62) at the second gear ring (622), the second motor (611) is arranged on the frame (1), and the second gear (612) is connected with an output shaft of the second motor (611).

7. A heat treatment device for a bearing ring according to claim 5, characterized in that: the pushing device is characterized in that a pushing piece (7) is arranged on one side, opposite to the feeding frame (63), of the frame (1), the pushing piece (7) comprises a driving air cylinder (71) and a pushing block (72), the driving air cylinder (71) is arranged on the frame (1), the pushing block (72) is arranged at the driving end of the driving air cylinder (71), and when the supporting rod (64) rotates to the rotating roller (31), the driving air cylinder (71) drives the pushing block (72) to push the supporting rod (64) to slide.

8. A heat treatment device for a bearing ring according to claim 1, characterized in that: the quenching device is characterized in that a quenching tank (8) is arranged at one side of the heating box (2), a blanking plate (81) is obliquely arranged at one side of the heating box (2), one side of the blanking plate (81) is connected with the quenching tank (8), and a blanking groove (811) is formed in the blanking plate (81).

9. A heat treatment device for a bearing ring according to claim 8, characterized in that: baffle plates (812) are arranged on the blanking plate (81) and positioned on two sides of the blanking groove (811).

10. A heat treatment process, characterized in that: the method comprises the following process steps:

S1, preprocessing, namely pre-cleaning and drying a bearing ring;

S2, heating, namely placing the bearing ring treated by the step S1 into the heat treatment equipment in the first aspect for heating;

S3, quenching, namely placing the bearing ring heated in the S2 into cooling brine for quenching;

S4, post-cleaning, namely taking out the bearing ring after the step S3 is completed, cleaning and drying;

S5, tempering, namely placing the bearing ring treated in the S4 into a tempering box for low-temperature tempering;

S6, quality inspection and boxing are transferred to a grinding workshop, the quality inspection is carried out after the bearing ring after the completion of the S5 is taken out, and boxing is transferred to the grinding workshop for grinding operation after the quality inspection is qualified.