Crane turntable gear ring quenching die
By improving the molding mechanism and cooling system, the problem of uneven local stress during the quenching process of the crane turntable gear ring was solved, achieving a stable connection and uniform cooling, thus ensuring the meshing performance and use effect of the gear ring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU KAIERRUI MACHINERY CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-31
AI Technical Summary
In the long-term use of existing crane turntable gear ring quenching die, uneven local stress leads to excessive or insufficient pressure, which cannot effectively suppress deformation and affects the meshing performance and use effect of the gear ring.
A molding mechanism including a lower mold and an upper mold, combined with a cooling mechanism, is designed to ensure precise alignment, stable connection and effective cooling during the molding process through the cooperation of positioning components, fixing components, sealing components and cooling components, thereby preventing deformation.
It achieves a stable connection and uniform cooling during the molding process, suppresses deformation, and ensures the meshing performance and effectiveness of the gear ring.
Smart Images
Figure CN224578299U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gear ring pressing mold technology, and in particular to a crane turntable gear ring quenching pressing mold. Background Technology
[0002] The crane turntable gear ring is a key transmission component of the crane turntable. It has a ring-shaped toothed structure and meshes with the pinion of the drive unit. The rotation of the turntable is realized through gear transmission, which in turn drives the boom component to turn. It is the core component for the crane to complete the slewing operation and must have high strength and high wear resistance to withstand heavy loads and frequent operation.
[0003] The crane turntable gear ring quenching die is a special mold used in the quenching process of crane turntable gear rings. It applies pressure to the workpiece during the quenching process to prevent deformation caused by temperature changes, ensure the accuracy and dimensional stability of the gear ring, and ensure the meshing between the gear ring and the turntable. It is a key tooling for improving the reliability of crane turntable transmission.
[0004] In the production of crane turntable gear rings, the split-jointed forging of gear rings results in insufficient structural connection strength, making it difficult to withstand the stress of long-term heavy loads and complex working conditions. This leads to breakage and deformation, affecting the stable operation of the crane turntable. In existing technology, the use of die-casting to produce integrated gear rings can improve the overall structural strength of the gear ring, enhance its load-bearing capacity and durability, and ensure the reliable operation of the crane turntable. However, in actual use, uneven local stress on the die during long-term use can lead to excessive or insufficient pressure, which cannot effectively suppress deformation. This results in the gear profile accuracy not meeting the standards, and the meshing performance and use effect of the gear ring cannot be guaranteed. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a quenching die for a crane turntable gear ring, which aims to improve the problem that in the existing technology, uneven local stress during long-term use of the die can lead to excessive or insufficient pressure, which cannot effectively suppress deformation, resulting in the inability to meet the tooth profile accuracy and ensure the meshing performance and use effect of the gear ring.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a crane turntable gear ring quenching die, including a lower template, an upper template on the top of the lower template, a die pressing mechanism between adjacent parts of the lower template and the upper template, the die pressing mechanism being used for positioning and fixing the die, and a cooling mechanism on the top of the upper template being used for cooling after quenching;
[0007] The molding mechanism includes two fixed inner rings, the outer walls of which are fixedly connected to the inner sides of the lower and upper mold plates respectively. Both the outer walls of the lower and upper mold plates are fixedly connected to fixed outer rings. Multiple lateral support plates are fixedly connected to the opposite sides of the two fixed inner rings. A locking ring is fixedly connected to the bottom of the upper mold plate. A locking groove is provided at the top of the lower mold plate. A positioning component is provided on the outer wall of the lower mold plate. Fixing components are provided on the opposite sides of the two fixed inner rings. Pressing components are provided between adjacent sections of the lower and upper mold plates. A sealing component is provided at the bottom of the upper mold plate.
[0008] As a further description of the above technical solution:
[0009] The cooling mechanism includes a heat insulation pipe, the outer wall of which is fixedly connected to the inner side of the upper template. A cooling pipe is fixedly connected to the inner side of the heat insulation pipe. Two threaded seats are fixedly connected to the top of the cooling pipe. A connecting seat is threaded to the top of each of the two threaded seats. A filter assembly is provided on the right side of the rear connecting seat.
[0010] As a further description of the above technical solution:
[0011] The positioning component includes multiple positioning guide rails, which are fixedly connected to the outer wall of the lower template. The inner sides of the multiple positioning guide rails are all chamfered groove structures.
[0012] As a further description of the above technical solution:
[0013] The positioning component also includes multiple positioning guides, which are fixedly connected to the outer wall of the upper template, and the edges of the multiple positioning guides are all chamfered.
[0014] As a further description of the above technical solution:
[0015] The fixing assembly includes multiple bolts, the bottom of which is threaded to the top of two inner fixing rings and the top of two outer fixing rings, and the bottom of each bolt is threaded to a nut.
[0016] As a further description of the above technical solution:
[0017] The pressing assembly includes a lower mold, the bottom of which is fixedly connected to the top of the lower template, and the bottom of the upper template is fixedly connected to the upper mold.
[0018] As a further description of the above technical solution:
[0019] The sealing assembly includes two sealing rings, the tops of which are fixedly connected to the bottom of the upper template, and the top of the lower template has two sealing grooves.
[0020] As a further description of the above technical solution:
[0021] The filter assembly includes a filter cylinder, with the left side of the filter cylinder located on the right side of the rear connecting seat, and a filter element slidably connected to the inner side of the filter cylinder.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the upper template moves to the lower template below, the engaging ring is embedded in the engaging groove, the bolt passes through the top of the fixed inner ring and the fixed outer ring and connects to the nut, thereby achieving additional fixation on the inner and outer sides of the mold, the fixing point is closer to the gear ring, the upper mold and the lower mold contact and press the gear ring, the sealing ring is embedded in the sealing groove, ensuring the reliability of the pressing process, avoiding excessive or insufficient local pressure in the mold during long-term use, effectively suppressing deformation, and ensuring the meshing performance and use effect of the gear ring.
[0024] 2. In this utility model, a cooling medium is introduced into the cooling pipe, and the heat insulation pipe wraps around the outside to reduce the loss of cold energy. The threaded seat and the connecting seat connect the cooling pipe to the external pipeline. The cooling medium first flows through the filter cylinder, and after the filter cartridge filters impurities, it enters the cooling pipe and exchanges heat with the upper template. This achieves effective preservation of cold energy and stable delivery and purification of the cooling medium, completing the cooling of the template and ensuring that the cooling process is smooth and leak-free, thus ensuring a good cooling effect after molding. Attached Figure Description
[0025] Figure 1 This is a perspective view of the crane turntable gear ring quenching die proposed in this utility model.
[0026] Figure 2 This is a split view of the upper template in the crane turntable gear ring quenching die proposed in this utility model;
[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 This is an exploded view of the cooling mechanism in the quenching die for the gear ring of the crane turntable proposed in this utility model;
[0029] Figure 5 This is a split view of the lower template in the quenching die for the gear ring of the crane turntable proposed in this utility model;
[0030] Figure 6 This is an exploded view of the positioning component in the quenching die for the gear ring of the crane turntable proposed in this utility model.
[0031] Legend:
[0032] 1. Lower template; 2. Upper template; 3. Pressing mechanism; 31. Fixed inner ring; 32. Fixed outer ring; 33. Side support plate; 34. Engaging ring; 35. Engaging groove; 36. Positioning assembly; 361. Positioning guide rail; 362. Positioning guide strip; 37. Fixing assembly; 371. Bolt; 372. Nut; 38. Pressing assembly; 381. Lower mold; 382. Upper mold; 39. Sealing assembly; 391. Sealing ring; 392. Sealing groove; 4. Cooling mechanism; 41. Heat insulation pipe; 42. Cooling pipe; 43. Threaded seat; 44. Connecting seat; 45. Filter assembly; 451. Filter cylinder; 452. Filter cartridge. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The present invention provides an embodiment of a crane turntable gear ring quenching die, including a lower template 1, an upper template 2 on the top of the lower template 1, a pressing mechanism 3 between adjacent parts of the lower template 1 and the upper template 2, the pressing mechanism 3 being used for positioning and fixing the pressing die, and a cooling mechanism 4 on the top of the upper template 2, the cooling mechanism 4 being used for cooling after quenching.
[0035] The molding mechanism 3 includes two fixed inner rings 31. The outer walls of the two fixed inner rings 31 are fixedly connected to the inner sides of the lower template 1 and the upper template 2, respectively. The outer walls of the lower template 1 and the upper template 2 are both fixedly connected to fixed outer rings 32. Multiple lateral support plates 33 are fixedly connected to the opposite sides of the two fixed inner rings 31. The bottom of the upper template 2 is fixedly connected to a locking ring 34. The top of the lower template 1 is provided with a locking groove 35. The outer wall of the lower template 1 is provided with a positioning component 36. The positioning component 36 includes multiple positioning guide rails 361. The adjacent positioning guide rails 361 are fixedly connected to the outer wall of the lower template 1. The inner sides of the multiple positioning guide rails 361 are all chamfered groove structures. The positioning component 36 also includes multiple positioning guide strips 362. The adjacent positioning guide strips 362 are fixedly connected to the outer wall of the upper template 2. The edges of the multiple positioning guide strips 362 are all chamfered.
[0036] Fixing components 37 are provided on the opposite sides of the two fixed inner rings 31. Each fixing component 37 includes multiple bolts 371. The bottom of each bolt 371 is threaded to the top of the two fixed inner rings 31 and the top of the two fixed outer rings 32. Nuts 372 are threaded to the bottom of each bolt 371. Pressing components 38 are provided between adjacent parts of the lower template 1 and the upper template 2. Each pressing component 38 includes a lower mold 381. The bottom of the lower mold 381 is fixedly connected to the top of the lower template 1. The bottom of the upper template 2 is fixedly connected to the upper mold 382. A sealing component 39 is provided at the bottom of the upper template 2. The sealing component 39 includes two sealing rings 391. The top of each sealing ring 391 is fixedly connected to the bottom of the upper template 2. Two sealing grooves 392 are provided at the top of the lower template 1.
[0037] Specifically, when the molding mechanism 3 is working, the upper template 2 moves downward to the lower template 1. The multiple positioning guides 362 of the positioning component 36 move with the upper template 2 and contact the positioning guide rail 361 on the outer wall of the lower template 1. The chamfering of the edge of the positioning guide 362 cooperates with the chamfered groove structure on the inner side of the positioning guide rail 361 to guide the upper template 2 to be accurately aligned. Through the cooperation of the positioning guide 362 and the positioning guide rail 361, the positioning alignment of the upper template 2 and the lower template 1 is achieved.
[0038] As the upper template 2 continues to move downward, the bottom locking ring 34 is embedded into the locking groove 35 at the top of the lower template 1, enhancing the tightness of the fit. Through the cooperation between the locking ring 34 and the locking groove 35, the overall closure of the structure is improved.
[0039] Multiple bolts 371 of the fixing component 37 pass through the top of the fixing inner ring 31 and the fixing outer ring 32, and the bottom threaded connection nut 372 securely connects the fixing inner ring 31 and the fixing outer ring 32 to the inner and outer walls of the lower template 1 and the upper template 2. The connection is stable through the cooperation of the bolts 371 and the nut 372.
[0040] The upper mold 382 of the pressing component 38 moves down with the upper template 2 and contacts the lower mold 381 at the top of the lower template 1 to press the gear ring placed between the two. The pressing and forming of the gear ring is completed through the cooperation of the upper mold 382 and the lower mold 381.
[0041] The two sealing rings 391 of the sealing assembly 39 move down with the upper template 2 and are embedded in the two sealing grooves 392 at the top of the lower template 1 to form a sealing structure to prevent material leakage during the pressing process. The sealing of the pressing environment is ensured by the cooperation between the sealing rings 391 and the sealing grooves 392.
[0042] Precise alignment is achieved through the cooperation of positioning guide strip 362 and positioning guide rail 361; the closure is enhanced through the cooperation of locking ring 34 and locking groove 35; the connection is secured through the cooperation of bolt 371 and nut 372; the pressing and forming is completed through the cooperation of upper mold 382 and lower mold 381; and the sealing is achieved through the cooperation of sealing ring 391 and sealing groove 392.
[0043] Reference Figure 1 and Figure 4 The cooling mechanism 4 includes a heat insulation pipe 41. The outer wall of the heat insulation pipe 41 is fixedly connected to the inner side of the upper template 2. A cooling pipe 42 is fixedly connected to the inner side of the heat insulation pipe 41. Two threaded seats 43 are fixedly connected to the top of the cooling pipe 42. A connecting seat 44 is threaded to the top of each of the two threaded seats 43. A filter assembly 45 is provided on the right side of the rear connecting seat 44. The filter assembly 45 includes a filter cylinder 451. The left side of the filter cylinder 451 is provided on the right side of the rear connecting seat 44. A filter cartridge 452 is slidably connected to the inner side of the filter cylinder 451.
[0044] Specifically, when the cooling mechanism 4 is working, a cooling medium is introduced into the cooling pipe 42, and the heat insulation pipe 41 is wrapped around the outside of the cooling pipe 42 to reduce the loss of cold energy during the cooling process. Through the cooperation of the heat insulation pipe 41 and the cooling pipe 42, the cold energy is effectively preserved.
[0045] The two threaded seats 43 at the top of the cooling pipe 42 are threadedly connected to the connecting seat 44, so that the cooling pipe 42 can be connected to the external pipeline, ensuring that the cooling medium can smoothly enter the cooling pipe 42. Through the cooperation of the threaded seat 43 and the connecting seat 44, the stable delivery of the cooling medium is achieved.
[0046] The filter assembly 45 on the right side of the rear connecting seat 44 starts to work. Before entering the cooling pipe 42, the cooling medium flows through the filter cylinder 451. The filter chamber 452 inside the filter cylinder 451 filters the impurities in the cooling medium to prevent impurities from entering the cooling pipe 42 and causing blockage. The cooling medium is purified through the cooperation of the filter cylinder 451 and the filter chamber 452.
[0047] The purified cooling medium enters the cooling pipe 42 and exchanges heat with the upper template 2 while flowing in the cooling pipe 42. It absorbs the heat generated by the upper template 2 during the pressing process, thereby reducing the temperature of the upper template 2. Through the cooperation between the cooling pipe 42 and the upper template 2, the upper template 2 is cooled down.
[0048] Throughout the cooling process, the heat insulation pipe 41 continuously provides heat insulation, reducing the transfer of cold energy to the outside. The filter assembly 45 continuously filters the cooling medium, ensuring unobstructed flow within the cooling pipe 42. The threaded seat 43 and the connecting seat 44 ensure the sealing of the cooling medium during its transport, preventing leakage.
[0049] The cooling capacity is preserved by the cooperation of the heat insulation pipe 41 and the cooling pipe 42, the cooling medium is transported by the cooperation of the threaded seat 43 and the connecting seat 44, the cooling medium is purified by the cooperation of the filter cylinder 451 and the filter chamber 452, and the cooling pipe 42 is cooled by the cooperation of the upper template 2.
[0050] Working principle: The gear ring to be processed is placed on the lower mold 381 at the top of the lower template 1. Then the upper template 2 begins to move down to the lower template 1. During this process, multiple positioning guides 362 of the positioning component 36 move synchronously with the upper template 2 and gradually come into contact with the positioning guide rail 361 on the outer wall of the lower template 1. The chamfering treatment of the edge of the positioning guide 362 and the chamfered groove structure on the inner side of the positioning guide rail 361 cooperate with each other to accurately guide the upper template 2 and the lower template 1 to align, ensuring that the positions of the two are correct.
[0051] As the upper template 2 continues to move downward, the bottom locking ring 34 gradually embeds into the locking groove 35 at the top of the lower template 1, enhancing the tightness of the fit between the upper template 2 and the lower template 1 and improving the closure of the structure. Multiple bolts 371 of the fixing component 37 pass through the top of the fixing inner ring 31 and the fixing outer ring 32, and the bottom threaded connection nut 372 firmly connects the fixing inner ring 31 and the fixing outer ring 32 to the inner and outer walls of the lower template 1 and the upper template 2, ensuring stable connection during the pressing process and preventing loosening.
[0052] As the upper template 2 continues to move downward, the upper mold 382 of the pressing assembly 38 moves upward and contacts the lower mold 381 at the top of the lower template 1, pressing the toothed ring placed between the two to form the required shape. The two sealing rings 391 of the sealing assembly 39 move downward with the upper template 2 and are embedded in the two sealing grooves 392 at the top of the lower template 1 to form a sealing structure, effectively preventing material leakage during the pressing process and ensuring the sealing of the pressing environment.
[0053] After the pressing is completed, the cooling mechanism 4 starts to work. Cooling medium is introduced into the cooling pipe 42. The heat insulation pipe 41 is wrapped around the outside of the cooling pipe 42 to reduce the loss of cold energy during the cooling process and achieve effective preservation of cold energy. The two threaded seats 43 at the top of the cooling pipe 42 are threadedly connected to the connecting seat 44, so that the cooling pipe 42 is connected to the external pipeline, ensuring that the cooling medium can smoothly enter the cooling pipe 42 and achieve stable delivery of the cooling medium.
[0054] The filter assembly 45 on the right side of the rear connecting seat 44 starts to operate. Before entering the cooling pipe 42, the cooling medium flows through the filter cylinder 451. The filter chamber 452 inside the filter cylinder 451 filters impurities in the cooling medium to prevent impurities from entering the cooling pipe 42 and causing blockage, thus purifying the cooling medium. The purified cooling medium enters the cooling pipe 42 and exchanges heat with the upper template 2 while flowing in the cooling pipe 42, absorbing the heat generated by the upper template 2 during the pressing process, thereby reducing the temperature of the upper template 2 and achieving cooling of the upper template 2.
[0055] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. Crane turret ring quenching press die comprising a lower die plate (1), characterised in that: The lower template (1) is provided with an upper template (2) at its top. A pressing mechanism (3) is provided between adjacent parts of the lower template (1) and the upper template (2). The pressing mechanism (3) is used to position and fix the pressing mold. A cooling mechanism (4) is provided at the top of the upper template (2). The cooling mechanism (4) is used to cool the mold after quenching. The molding mechanism (3) includes two fixed inner rings (31). The outer walls of the two fixed inner rings (31) are fixedly connected to the inner sides of the lower template (1) and the upper template (2), respectively. The outer walls of the lower template (1) and the upper template (2) are both fixedly connected to fixed outer rings (32). Multiple lateral support plates (33) are fixedly connected to the opposite sides of the two fixed inner rings (31). The bottom of the upper template (2) is fixedly connected to a locking ring (34). The top of the lower template (1) is provided with a locking groove (35). The outer wall of the lower template (1) is provided with a positioning component (36). The opposite sides of the two fixed inner rings (31) are provided with a fixing component (37). A pressing component (38) is provided between adjacent parts of the lower template (1) and the upper template (2). A sealing component (39) is provided at the bottom of the upper template (2).
2. The crane turntable ring quench press for a crane turntable ring according to claim 1, characterized in that: The cooling mechanism (4) includes a heat insulation pipe (41), the outer wall of which is fixedly connected to the inner side of the upper template (2), and a cooling pipe (42) is fixedly connected to the inner side of the heat insulation pipe (41). Two threaded seats (43) are fixedly connected to the top of the cooling pipe (42), and a connecting seat (44) is threaded to the top of each of the two threaded seats (43). A filter assembly (45) is provided on the right side of the connecting seat (44) on the rear side.
3. The crane turntable ring quench press for a crane turntable ring as defined in claim 1, characterized in that: The positioning component (36) includes multiple positioning guide rails (361), and each of the multiple positioning guide rails (361) is fixedly connected to the outer wall of the lower template (1). The inner side of each of the multiple positioning guide rails (361) adopts a chamfered groove structure.
4. The crane turntable ring quench press for a crane turntable ring as defined in claim 1 wherein: The positioning component (36) also includes a plurality of positioning guide strips (362), which are fixedly connected to the outer wall of the upper template (2) and the edges of the plurality of positioning guide strips (362) are chamfered.
5. The crane turntable ring quench press for a crane turntable ring as defined in claim 1 wherein: The fixing assembly (37) includes a plurality of bolts (371), the bottom of which is threaded to the top of two inner fixing rings (31) and the top of two outer fixing rings (32), and the bottom of which is threaded to a nut (372).
6. The crane turntable ring quench press for a crane turntable ring as defined in claim 1 wherein: The pressing assembly (38) includes a lower mold (381), the bottom of which is fixedly connected to the top of the lower template (1), and the bottom of the upper template (2) is fixedly connected to an upper mold (382).
7. The crane turret ring quench press for a crane turret ring as defined in claim 1 wherein: The sealing assembly (39) includes two sealing rings (391), the tops of which are fixedly connected to the bottom of the upper template (2), and the top of the lower template (1) has two sealing grooves (392).
8. The crane turntable ring quench press for a crane turntable ring as defined in claim 2 wherein: The filter assembly (45) includes a filter cylinder (451), the left side of which is located on the right side of the rear connecting seat (44), and a filter element (452) is slidably connected to the inner side of the filter cylinder (451).