Quenching device for bearing ring production

Abstract

The invention belongs to the technical field of bearing ring production, and particularly relates to a bearing ring production quenching device which comprises a machine box, a machining table and a quenching box, the machining table and the quenching box are arranged on the machine box, the machining table is located in the quenching box, and a clamping assembly for clamping a bearing ring is further arranged on the machining table; a spray quenching mechanism for spraying liquid towards the processing table is arranged on the quenching box; the spray quenching mechanism comprises a spray disc and a spray ring which are arranged in the quenching box; through cooperation of the spraying quenching mechanism and the lifting structure, the spraying disc and the spraying ring can cover the bearing ring, and a cooling medium can be uniformly sprayed on the bearing ring conveniently, so that the bearing ring can be rapidly cooled in all directions, the quenching effect can be improved, the situation of non-uniform cooling is avoided, and the service life of the bearing ring is prolonged. And therefore, the mechanical performance of the bearing ring is improved, the machining quality of the bearing ring is guaranteed, and follow-up use of the bearing ring is facilitated.

Description

Technical Field

[0001] This invention belongs to the field of bearing ring production technology, and specifically relates to a quenching device for bearing ring production. Background Technology

[0002] Bearing races are the core components of a bearing, primarily used to support and secure the rolling elements. Their width and height dimensions directly affect the bearing's load-bearing capacity and service life, and they are typically made of materials such as high-carbon chromium bearing steel. During the production of bearing races, they generally undergo precision machining and heat treatment (such as quenching and tempering) to improve hardness and wear resistance, ensuring the proper functioning of the bearing races.

[0003] Currently, in the heat treatment of bearing rings, a quenching device is typically used to quench the bearing rings to improve their mechanical properties. However, most quenching devices mainly consist of a housing, a rotatable machining table, and a liquid spraying mechanism. During the quenching process, the heated bearing rings are clamped on the machining table, and then liquid is sprayed onto the bearing rings by the liquid spraying mechanism to achieve the quenching treatment. However, during the liquid spraying process, the existing liquid spraying mechanism usually sprays the bearing rings from above, which often makes it difficult to cool the bearing rings from all directions. This can easily lead to localized areas of the bearing rings not being cooled in time, resulting in poor quenching effect, affecting the mechanical properties of the bearing rings, and being detrimental to their subsequent use. Summary of the Invention

[0004] The purpose of this invention is to provide a quenching apparatus for the production of bearing rings, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bearing ring production quenching device, comprising a machine housing, a processing table and a quenching box disposed on the machine housing, wherein the processing table is located inside the quenching box, and a clamping assembly for clamping the bearing ring is also disposed on the processing table, and a spray quenching mechanism for spraying liquid toward the processing table is disposed on the quenching box. The spray quenching mechanism includes a spray plate and a spray ring located inside the quenching box. The spray plate is located inside and above the spray ring, and multiple connecting pipes connect the spray plate and the spray ring. The bottom of the spray plate and the inner wall of the spray ring are provided with uniformly distributed nozzles. It also includes a lifting structure, which is used to drive the spray plate and spray ring to rise and fall synchronously, so that the spray plate and spray ring are positioned above the processing table.

[0006] Preferably, the lifting structure includes an electric push rod installed on the top of the quenching box, the telescopic end of the electric push rod extending into the quenching box and fixedly connected to the top of the spray plate, and a telescopic connecting rod connecting the top of the spray plate and the inner wall of the quenching box.

[0007] Preferably, the chassis is further provided with a top-open liquid collection tank, and the liquid collection tank is provided with a waste heat recovery structure. The waste heat recovery structure includes an installation plate installed on one side of the liquid collection tank and a heat conduction pipe located inside the liquid collection tank. One side of the installation plate is connected to an inlet valve and an outlet valve extending to the outside of the chassis. The inlet valve is connected to the inlet end of the heat conduction pipe, and the outlet valve is connected to the outlet end of the heat conduction pipe. The top of the chassis is also provided with a drain hole corresponding to the liquid collection tank, and a water baffle is installed on the top of the chassis.

[0008] Preferably, the liquid collection tank is further provided with a filter assembly, and the filter assembly includes a filter element disposed inside the liquid collection tank. The filter element includes a filter frame, and multiple filter screens are installed inside the filter frame.

[0009] Preferably, a guide rail is installed on the inner wall of the collection tank, and a port for inserting and removing the filter frame is opened on one side of the collection tank. One end of the filter frame is equipped with an end plate extending to the outside of the collection tank, and the end plate seals the port. Guide rail grooves that cooperate with the guide rail are opened on both sides of the filter frame, and a pin rod penetrating the end plate is inserted into the top of the collection tank.

[0010] Preferably, the spray quenching mechanism further includes a liquid storage tank and a pump body installed on the top of the quenching box. The inlet end of the pump body is connected to the liquid storage tank by a suction pipe, and the outlet end is connected to the spray plate by a delivery hose.

[0011] Preferably, the inside of the chassis is also provided with a recycling component, which includes a recycling tank and a recycling pump. The two ends of the recycling pump are connected to the collection tank and the recycling tank respectively through pipes, and a drain valve is installed on one side of the recycling tank.

[0012] Preferably, the interior of the chassis is also provided with a circulation structure, which includes a circulation pump. One end of the circulation pump is connected to the recovery tank through a pipe, and the other end is connected to the liquid storage tank through a recovery pipe.

[0013] Preferably, the clamping assembly includes a dual-axis hydraulic rod installed at the center of the top of the processing table. Both ends of the dual-axis hydraulic rod are equipped with abutment blocks, and the outer wall of the abutment block is curved to form an arc-shaped abutment part that fits against the inner wall of the bearing ring. A support block is also fixed at the bottom of the abutment block, and a leakage hole is provided on the support block.

[0014] Preferably, the top of the chassis is also equipped with a motor and a housing, the housing covers the outside of the motor, and the main shaft of the motor extends to the top of the housing and is connected to the bottom of the processing table.

[0015] Compared with the prior art, the present invention has the following advantages: (1) By combining the spray quenching mechanism and the lifting structure, the present invention enables the spray plate and spray ring to be placed outside the bearing ring, so that the cooling medium can be evenly sprayed on the bearing ring, thereby achieving all-round rapid cooling of the bearing ring, which can improve the quenching effect, avoid uneven cooling, and thus improve the mechanical properties of the bearing ring, ensure the processing quality of the bearing ring, and facilitate the subsequent use of the bearing ring. (2) By setting up a waste heat recovery structure, the present invention can absorb the heat in the waste liquid, thereby improving the utilization rate of resources, realizing the recovery and utilization of heat in the waste liquid, and avoiding the waste of heat resources by direct discharge with the waste liquid. (3) By setting up a filter assembly, the present invention can perform multi-stage filtration of waste liquid, thereby preventing impurities in the waste liquid from adhering to the outer wall of the heat-conducting pipe, avoiding the problem of scale formation on the outer wall of the heat-conducting pipe affecting the heat conduction effect, and thus facilitating the efficient recovery of heat in the waste liquid by the waste heat recovery structure. Furthermore, the filter element is designed to be detachable, allowing for regular cleaning or replacement, thus ensuring the filtration effect and facilitating efficient filtration of waste liquid. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A structural diagram from another angle; Figure 3 For the present invention Figure 1 A sectional view; Figure 4 For the present invention Figure 3 The front view; Figure 5 For the present invention Figure 2 A sectional view; Figure 6 This is a schematic diagram of the structure when the spray disc and spray ring are connected according to the present invention; Figure 7 This is a schematic diagram of the structure when the recycling bin and the filter assembly are connected according to the present invention; Figure 8 This is a schematic diagram of the structure of the filter assembly of the present invention; Figure 9 This is an exploded view of the filtering component of the present invention; Figure 10 This is a cross-sectional view of the liquid collection tank of the present invention; Figure 11 This is a cross-sectional view of the filter element of the present invention; Figure 12 This is a schematic diagram of the processing table of the present invention.

[0017] In the diagram: 1. Chassis; 2. Quenching box; 3. Liquid storage tank; 4. Spray quenching mechanism; 41. Pump body; 42. Liquid delivery hose; 43. Spray plate; 44. Spray ring; 45. Connecting pipe; 46. Nozzle; 5. Lifting structure; 51. Electric push rod; 52. Connecting rod; 6. Waste heat recovery structure; 61. Inlet valve; 62. Mounting plate; 63. Outlet valve; 64. Heat conduction pipe; 7. Circulation structure; 71. 72. Circulation pump; 8. Recovery pipe; 9. Processing table; 10. Recovery box; 11. Filter assembly; 12. Liquid collection tank; 13. Filter element; 14. End plate; 15. Filter frame; 16. Filter screen; 17. Pin rod; 18. Guide rail; 19. Recovery pump; 100. Motor; 11. Housing; 12. Water baffle; 13. Dual-axis hydraulic rod; 14. Clamping block; 15. Support block. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] refer to Figures 1-6 As shown, a bearing ring production quenching device includes a housing 1, a processing table 8 and a quenching box 2 mounted on the housing 1. The processing table 8 is located inside the quenching box 2, and the processing table 8 is also equipped with a clamping assembly for clamping the bearing rings. The quenching box 2 is equipped with a spray quenching mechanism 4 that sprays liquid toward the processing table 8. Both the housing 1 and the quenching box 2 are hinged with doors to facilitate the opening and closing of the housing 1 and the quenching box 2. The spray quenching mechanism 4 includes a spray plate 43 and a spray ring 44 located inside the quenching box 2. The spray plate 43 is located inside and above the spray ring 44, and multiple connecting pipes 45 are connected between the spray plate 43 and the spray ring 44. The bottom of the spray plate 43 and the inner wall of the spray ring 44 are provided with evenly distributed nozzles 46. The spray quenching mechanism 4 also includes a liquid storage tank 3 and a pump body 41 installed on the top of the quenching box 2. A suction pipe is connected between the liquid inlet end of the pump body 41 and the liquid storage tank 3, and a liquid delivery hose 42 is connected between the liquid outlet end and the spray plate 43. It also includes a lifting structure 5, which is used to drive the spray plate 43 and the spray ring 44 to rise and fall synchronously, so that the spray plate 43 and the spray ring 44 are covered above the processing table 8.

[0020] Specifically, the lifting structure 5 includes an electric push rod 51 installed on the top of the quenching box 2. The telescopic end of the electric push rod 51 extends into the quenching box 2 and is fixedly connected to the top of the spray plate 43. A telescopic connecting rod 52 is also connected between the top of the spray plate 43 and the inner wall of the quenching box 2.

[0021] As described above, during the quenching of bearing rings, the heated bearing rings are clamped onto the processing table 8 using a clamping assembly. The cooling medium is then pumped from the storage tank 3 by the pump body 41 and fed into the spray plate 43 via the delivery hose 42. Subsequently, the cooling medium flows into the spray ring 44 under the action of the connecting pipe 45, and is then sprayed out through the nozzles 46 on the spray plate 43 and spray ring 44. Simultaneously, the spray plate 43 is driven to descend by the electric push rod 51, causing the spray plate 43 and spray ring 44 to cover the outside of the bearing rings. This allows the cooling medium to be evenly sprayed onto the bearing rings through the nozzles 46, achieving rapid cooling of the bearing rings from all directions. This improves the quenching effect, avoids uneven cooling, and ultimately enhances the mechanical properties of the bearing rings, ensuring the processing quality of the bearing rings and facilitating their subsequent use.

[0022] Secondly, regarding the aforementioned clamping components, refer to... Figure 4 and Figure 12 As shown, the clamping assembly includes a dual-axis hydraulic rod 15 installed at the top center of the processing table 8. Both ends of the dual-axis hydraulic rod 15 are equipped with abutment blocks 16, and the outer wall of the abutment block 16 is curved to form an arc-shaped abutment part that fits against the inner wall of the bearing ring. A support block 17 is also fixed at the bottom of the abutment block 16, and a leakage hole is provided on the support block 17.

[0023] When the bearing ring is clamped, the two clamping blocks 16 can be driven to move in opposite directions simultaneously by the dual-axis hydraulic rod 15, so that the two clamping blocks 16 abut against the inner wall of the bearing ring through the arc-shaped clamping part on one side. At this time, the support block 17 can support the bearing ring, thereby realizing the stable clamping of the bearing ring and facilitating the stable processing of the bearing ring.

[0024] Furthermore, in this embodiment, in order to further achieve uniform quenching of the bearing rings, such as... Figures 3-5 As shown, a motor 12 and a housing 13 are also installed on the top of the chassis 1. The housing 13 covers the outside of the motor 12, and the main shaft of the motor 12 extends to the top of the housing 13 and is connected to the bottom of the processing table 8.

[0025] During the quenching process of the bearing rings, the machining table 8 can be driven to rotate by the motor 12. The machining table 8 then drives the bearing rings to rotate, thereby achieving uniform cooling of the bearing rings, improving the quenching effect, ensuring that the mechanical properties of the bearing rings after quenching meet production requirements, and facilitating subsequent use.

[0026] Meanwhile, in this embodiment, such as Figure 2 , Figure 5 , Figures 7-10 As shown, the casing 1 is also equipped with a top-open liquid collection tank 101, and the liquid collection tank 101 is equipped with a waste heat recovery structure 6. The waste heat recovery structure 6 includes a mounting plate 62 installed on one side of the liquid collection tank 101 and a heat conduction pipe 64 installed inside the liquid collection tank 101. One side of the mounting plate 62 is connected to an inlet valve 61 and an outlet valve 63 extending to the outside of the casing 1. The inlet valve 61 is connected to the inlet end of the heat conduction pipe 64, and the outlet valve 63 is connected to the outlet end of the heat conduction pipe 64. The top of the casing 1 is also provided with a drain hole corresponding to the liquid collection tank 101, and a water baffle 14 is also installed on the top of the casing 1.

[0027] During the quenching process of bearing rings, the waste liquid can be discharged into the collection tank 101 through the drain hole at the top of the housing 1 for storage. At this time, a cooling medium (such as water) can be injected into the heat pipe 64 through the inlet valve 61. Then, the cooling medium absorbs the heat in the waste liquid through the heat pipe 64 and is discharged through the outlet valve 63 for external use. This can improve the utilization rate of resources, realize the recovery and utilization of heat in the waste liquid, and avoid the waste of heat resources by directly discharging the waste liquid.

[0028] Furthermore, such as Figures 7-9 and Figure 11 As shown, a filter assembly 10 is also provided on the liquid collection tank 101, and the filter assembly 10 includes a filter element 102 disposed inside the liquid collection tank 101. The filter element 102 includes a filter frame 1022, and multiple filter screens 1023 are installed inside the filter frame 1022. Specifically, in this embodiment, for the convenience of illustration, a total of 3 filter screens 1023 are provided.

[0029] When the waste liquid is discharged into the collection tank 101, it first falls onto the filter frame 1022. Then, it undergoes multi-stage filtration through multiple filter screens 1023 within the filter frame 1022. After filtration, the waste liquid is discharged into the collection tank 101 for storage. This prevents impurities in the waste liquid from adhering to the outer wall of the heat pipe 64, avoiding the problem of scale buildup on the outer wall of the heat pipe 64 that would affect the heat conduction effect. This, in turn, facilitates the efficient recovery of heat from the waste liquid by the waste heat recovery structure 6.

[0030] Secondly, to facilitate the replacement of filter 1023, such as Figure 7 , Figures 9-11As shown, a guide rail 104 is also installed on the inner wall of the liquid collection tank 101, and a port for inserting and removing the filter frame 1022 is opened on one side of the liquid collection tank 101. One end of the filter frame 1022 is equipped with an end plate 1021 extending to the outside of the liquid collection tank 101, and the end plate 1021 seals the port. Guide rail grooves that cooperate with the guide rail 104 are opened on both sides of the filter frame 1022. A pin rod 103 that penetrates the end plate 1021 is also inserted into the top of the liquid collection tank 101. In order to facilitate the disassembly and assembly of the filter screen 1023, a handle is provided on the end plate 1021.

[0031] When the filter screen 1023 needs to be replaced, the pin rod 103 can be pulled out from the collection tank 101, and then the filter frame 1022 can be pulled through the end plate 1021, so that the filter frame 1022 can be moved out of the collection tank 101 with the cooperation of the guide rail 104 and the guide rail groove. Then the filter frame 1022 can be cleaned or replaced. After cleaning or replacement, the filter frame 1022 can be inserted into the collection tank 101 with the cooperation of the guide rail 104 and the guide rail groove. Then the pin rod 103 can be inserted into the collection tank 101 to fix the filter frame 1022, thus completing the installation of the filter screen 1023. This enables the quick installation and removal of the filter screen 1023, ensuring the filtration effect of the filter screen 1023 and facilitating the efficient filtration of waste liquid.

[0032] In addition, in this embodiment, to facilitate the recycling of the liquid, such as... Figures 2-5 , Figure 7 and Figure 8 As shown, the inside of the chassis 1 is also equipped with a recycling component, which includes a recycling tank 9 and a recycling pump 11. The two ends of the recycling pump 11 are connected to the collection tank 101 and the recycling tank 9 respectively through pipes, and a drain valve is installed on one side of the recycling tank 9.

[0033] The casing 1 is also equipped with a circulation structure 7, which includes a circulation pump 71. One end of the circulation pump 71 is connected to the recovery tank 9 through a pipe, and the other end is connected to the liquid storage tank 3 through a recovery pipe 72.

[0034] After the waste liquid is filtered by the filter element 102 and stored in the collection tank 101, it can be extracted by the recovery pump 11 and transported into the recovery tank 9 through the pipeline to realize the recovery of the liquid. Then, the liquid recovered in the recovery tank 9 can be extracted by the circulation pump 71 and transported into the storage tank 3 through the recovery pipe 72 to facilitate the pump body 41 to supply liquid to the spray plate 43 and spray ring 44 to realize the quenching treatment of the bearing ring, thereby realizing the recycling of resources, further avoiding resource waste, improving resource utilization, and facilitating the quenching treatment of the bearing ring.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bearing ring production quenching device, comprising a machine box (1), a machining table (8) and a quenching box (2) arranged on the machine box (1), the machining table (8) being inside the quenching box (2), and a clamping assembly for clamping a bearing ring being further arranged on the machining table (8), characterized in that, The quenching box (2) is provided with a spray quenching mechanism (4) for spraying liquid towards a machining table (8); The spray quenching mechanism (4) comprises a spray disc (43) and a spray ring (44) arranged inside the quenching box (2), the spray disc (43) is arranged above the inside of the spray ring (44), and a plurality of communication pipes (45) are connected between the spray disc (43) and the spray ring (44), and the bottom of the spray disc (43) and the inner wall of the spray ring (44) are both provided with uniformly distributed nozzles (46). The lifting structure (5) is used for driving the spray disc (43) and the spray ring (44) to synchronously lift, so that the spray disc (43) and the spray ring (44) are arranged above the machining table (8).

2. A bearing ring production quenching apparatus according to claim 1, characterized in that: The lifting structure (5) comprises an electric push rod (51) mounted on the top of the quenching box (2), the telescopic end of the electric push rod (51) extends into the quenching box (2) and is fixedly connected to the top of the spray disc (43), and a telescopic connecting rod (52) is further connected between the top of the spray disc (43) and the inner wall of the quenching box (2).

3. The apparatus of claim 1 wherein: The case (1) is further provided with a liquid collecting tank (101) with an open top, and the liquid collecting tank (101) is provided with a waste heat recovery structure (6), the waste heat recovery structure (6) comprises a mounting disc (62) mounted on one side of the liquid collecting tank (101) and a heat conducting pipe (64) arranged inside the liquid collecting tank (101), one side of the mounting disc (62) is connected with a liquid inlet valve (61) and a liquid outlet valve (63) extending to the outside of the case (1), wherein the liquid inlet valve (61) is in communication with the liquid inlet end of the heat conducting pipe (64), and the liquid outlet valve (63) is in communication with the liquid outlet end of the heat conducting pipe (64), the top of the case (1) is further provided with a liquid discharge hole corresponding to the liquid collecting tank (101), and the top end of the case (1) is further provided with a water baffle (14).

4. A bearing ring production quenching apparatus according to claim 3, wherein: The liquid collecting tank (101) is further provided with a filter assembly (10), and the filter assembly (10) comprises a filter (102) arranged inside the liquid collecting tank (101), the filter (102) comprises a filter frame (1022), and a plurality of filter screens (1023) are mounted in the filter frame (1022).

5. A bearing ring production quenching apparatus according to claim 4, characterised in that: The inner wall of the liquid collecting tank (101) is further provided with a guide rail (104), and one side of the liquid collecting tank (101) is provided with a through hole for plugging and unplugging the filter frame (1022), one end of the filter frame (1022) is provided with an end plate (1021) extending to the outside of the liquid collecting tank (101), and the end plate (1021) seals the through hole, and both sides of the filter frame (1022) are provided with guide rail grooves matched with the guide rail (104), and the top of the liquid collecting tank (101) is further provided with a plug pin rod (103) penetrating through the end plate (1021).

6. The bearing ring production quenching apparatus of claim 3, wherein: The spray quenching mechanism (4) further comprises a liquid storage tank (3) and a pump body (41) mounted on the top of the quenching box (2), the liquid inlet end of the pump body (41) is connected with the liquid storage tank (3), and the liquid outlet end is connected with the spray disc (43).

7. A bearing ring production quenching apparatus according to claim 6, wherein: The inside of the machine box (1) is also provided with a recycling assembly, which comprises a recycling tank (9) and a recycling pump (11), both ends of the recycling pump (11) are connected with the liquid collecting tank (101) and the recycling tank (9) through pipelines respectively, and a liquid discharge valve is installed on one side of the recycling tank (9).

8. A bearing ring production quenching apparatus according to claim 7, characterised in that: The inside of the machine box (1) is also provided with a circulating structure (7), and the circulating structure (7) comprises a circulating pump (71), one end of the circulating pump (71) is connected with the recycling tank (9) through a pipeline, and the other end is connected with the liquid storage tank (3) through a recycling pipe (72).

9. The bearing ring production quenching apparatus of claim 1 wherein: The clamping assembly comprises a double-shaft hydraulic rod (15) installed at the middle part of the top of the machining table (8), both ends of the double-shaft hydraulic rod (15) are installed with abutting blocks (16), the outer wall of the abutting block (16) is arc-shaped and abuts with the inner wall of the bearing sleeve, the bottom of the abutting block (16) is also fixed with a supporting block (17), and a liquid leakage hole is formed in the supporting block (17).

10. The bearing ring production quenching apparatus of claim 1, wherein: The top of the machine box (1) is also installed with a motor (12) and a shell (13), the shell (13) covers the outside of the motor (12), and the main shaft of the motor (12) extends to the top of the shell (13) and is connected with the bottom of the machining table (8).

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