A cooling liquid circulating device for crankshaft grinding

CN224601352UActive Publication Date: 2026-08-07DANJIANGKOU DONGFA CRANKSHAFT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DANJIANGKOU DONGFA CRANKSHAFT
Filing Date
2025-07-04
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

但现有的曲轴磨削加工的冷却液在使用后,直接作为废弃物排放,造成冷却液的严重浪费,为解决上述问题,设计一种曲轴磨削加工的冷却液循环装置是很有必要的

Benefits of technology

[0015] After use, the coolant falls onto the filter plate, is filtered, and returns to the storage tank. The filtered coolant is then pumped back to the grinding area for reuse, thus achieving coolant recovery and recycling.

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Abstract

The utility model is suitable for crankshaft machining assembly technical field provides a kind of cooling liquid circulating device of crankshaft grinding, including storage, filter plate is provided in storage, rack is fixedly installed at filter plate bottom, two interval settings vertical rods are fixedly installed at filter plate top, top plate is equipped on filter plate, vertical rod upper end penetrates top plate, spring is all set in vertical rod upper end, limit mechanism is equipped on the both sides of storage, limit mechanism is positioned to top plate, after use, cooling liquid falls on filter plate, is filtered and is returned to storage by filter plate, filtered cooling liquid is pumped to grinding again by suction pump and is used twice, to realize the recovery and recycling of cooling liquid. By making filter plate shake up and down, the filter plate is not easy to be blocked. The filter plate does not shake up and down can produce dynamic vibration and displacement, can effectively destroy the adsorption force phenomenon between solid particles on the filter plate and filter hole, and shake off the impurities blocked in the filter hole.
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Description

Technical Field

[0001] This utility model belongs to the technical field of crankshaft machining components, and in particular relates to a coolant circulation device for crankshaft grinding. Background Technology

[0002] Crankshaft grinding is a key process in the manufacturing of core engine components. High-precision grinding machines are used to finish the hardened crankshaft main journals and connecting rod journals to eliminate forging or turning allowances and ensure surface roughness. Its core technology includes a follow-up grinding process, which uses CNC linkage to control the grinding wheel's oscillation and workpiece rotation, enabling the machining of multiple journals in a single setup and avoiding errors from multiple setups.

[0003] In crankshaft grinding, coolant needs to be continuously added to the grinding wheel to achieve thermal control and suppress thermal deformation. During crankshaft grinding, the instantaneous temperature in the contact zone between the grinding wheel and the workpiece can reach 600-1000℃ (far exceeding the tempering temperature of quenched steel), causing material softening and even phase transformation. Water-soluble cutting fluids (such as emulsions) can reduce the temperature of the grinding zone by 30%-50% through high-pressure spraying, avoiding dimensional deviations caused by thermal stress. However, existing crankshaft grinding coolants are directly discharged as waste after use, resulting in serious waste of coolant. To solve the above problems, it is necessary to design a coolant circulation device for crankshaft grinding. Utility Model Content

[0004] This invention provides a coolant circulation device for crankshaft grinding to solve the aforementioned problems in the prior art.

[0005] This utility model is implemented as follows: a coolant circulation device for crankshaft grinding includes a memory, a filter plate is provided in the memory, a rack is fixedly installed at the bottom of the filter plate, two spaced vertical rods are fixedly installed at the top of the filter plate, a top plate is provided at the upper end of the filter plate, the upper end of the vertical rods penetrates the top plate, and a spring is sleeved on each vertical rod, with the two ends of the springs fixedly connected to the top plate and the filter plate respectively.

[0006] Both sides of the memory are equipped with limiting mechanisms to limit the top plate. A suction pump is fixedly installed outside the memory. The inlet end of the suction pump is connected to and fixedly installed with an inlet pipe, which is connected to the inner cavity of the memory. The outlet end of the suction pump is connected to and fixedly installed with an outlet pipe, and the end of the outlet pipe is connected to and fixedly installed with an oil injection nozzle, which is located above the filter plate. A servo motor is fixedly installed outside the memory. An incomplete gear is provided inside the memory, and the incomplete gear is fixedly installed on the output shaft of the servo motor.

[0007] Preferably, a valve is installed on the drain pipe.

[0008] Preferably, the memory has a heat dissipation vent at the top, and multiple heat dissipation fins are fixedly installed on the outside of the memory, with one end of each heat dissipation fin extending into the inside of the memory.

[0009] Preferably, the limiting mechanism includes a limiting rod disposed on the memory, one end of the limiting rod passing through the memory and inserted into the top plate, a circular ring plate being fixedly installed on the limiting rod, and an elastic element being sleeved on the limiting rod, with both ends of the elastic element being fixedly connected to the circular ring plate and the memory, respectively.

[0010] Preferably, the memory is equipped with a magnet located at the end of the liquid inlet pipe.

[0011] Preferably, an inner shaft is rotatably mounted inside the memory, the inner shaft is fixedly connected to a magnet, and a synchronous belt mechanism is installed between the inner shaft and the output shaft of the servo motor.

[0012] Preferably, a liquid level scale is provided on the outside of the memory.

[0013] Preferably, multiple stirring blades are fixedly installed on the inner shaft.

[0014] Compared with related technologies, the coolant circulation device for crankshaft grinding provided by this utility model has the following advantages:

[0015] After use, the coolant falls onto the filter plate, is filtered, and returns to the storage tank. The filtered coolant is then pumped back to the grinding area for reuse, thus achieving coolant recovery and recycling.

[0016] By causing the filter plates to oscillate up and down, clogging is prevented. Even when the plates are not oscillating, dynamic vibration and displacement are generated. This physical action effectively breaks the adhesion or bridging between solid particles and the filter pores, shaking off impurities that clog the pores and preventing clogging caused by long-term accumulation of impurities. This ensures the continuity and efficiency of coolant filtration. Magnets attract the coolant flowing into the inlet pipe, attracting small metal debris and preventing it from entering the coolant and pump. Multiple agitator blades rotate synchronously with the inner shaft, stirring the coolant in the storage compartment and accelerating heat dissipation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0019] Figure 3This is an exploded view of part of the structure of this utility model;

[0020] Figure 4 This is an enlarged schematic diagram of the internal structure of the memory of this utility model.

[0021] In the diagram: 1. Memory; 2. Filter plate; 3. Rack; 4. Vertical rod; 5. Top plate; 6. Spring; 7. Drain pipe; 8. Inlet pipe; 9. Oil nozzle; 10. Valve; 11. Servo motor; 12. Incomplete gear; 13. Heat dissipation port; 14. Heat dissipation fins; 15. Limiting rod; 16. Circular ring; 17. Elastic element; 18. Inner shaft; 19. Synchronous belt mechanism; 20. Stirring blade; 21. Suction pump; 22. Magnet. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] A preferred embodiment of the coolant circulation device for crankshaft grinding provided by this utility model is, for example... Figures 1 to 4 As shown:

[0025] A coolant circulation device for crankshaft grinding includes a storage device 1, a filter plate 2 inside the storage device 1, a rack 3 fixedly mounted at the bottom of the filter plate 2, two spaced vertical rods 4 fixedly mounted at the top of the filter plate 2, a top plate 5 at the upper end of the filter plate 2, the upper ends of the vertical rods 4 penetrating the top plate 5, and springs 6 sleeved on each vertical rod 4, with both ends of the springs 6 fixedly connected to the top plate 5 and the filter plate 2 respectively. Limiting mechanisms are provided on both sides of the storage device 1 to limit the top plate 5. A suction pump 21 is fixedly mounted outside the storage device 1. The inlet end of the suction pump 21 is connected to and fixedly mounted with an inlet pipe 8, which communicates with the inner cavity of the storage device 1. The outlet end of the suction pump 21 is connected to and fixedly mounted with an outlet pipe 7, and the end of the outlet pipe 7 is connected to and fixedly mounted with an oil nozzle 9, which is positioned above the filter plate 2. A servo motor 11 is fixedly mounted outside the storage device 1, and an incomplete gear 12 is provided inside the storage device 1, which is fixedly mounted on the output shaft of the servo motor 11.

[0026] The limiting mechanism includes a limiting rod 15 disposed on the memory 1. One end of the limiting rod 15 passes through the memory 1 and is inserted into the top plate 5. A circular ring plate 16 is fixedly installed on the limiting rod 15. An elastic element 17 is sleeved on the limiting rod 15. The two ends of the elastic element 17 are fixedly connected to the circular ring plate 16 and the memory 1, respectively.

[0027] The storage tank 1 contains a certain amount of clean coolant. The clean coolant is drawn into the inlet pipe 8 by the suction pump 21 and discharged to the oil filler 9 through the drain pipe 7. The oil filler 9 adds coolant to the grinding area. The used coolant falls onto the filter plate 2, is filtered by the filter plate 2, and returns to the storage tank 1. The filtered coolant is then pumped back to the grinding area by the suction pump 21 for secondary use, thereby realizing the recovery and recycling of coolant.

[0028] By recycling the coolant, the demand for fresh coolant is significantly reduced, thereby lowering production costs and conserving this important resource. It also reduces the discharge of waste coolant, thus minimizing environmental pollution.

[0029] Under normal conditions, one end of the limiting rod 15 passes through the memory 1 and is inserted into the top plate 5, which can limit the position of the top plate 5 and the filter plate 2. By pulling the limiting rod 15, the limiting rod 15 is completely disengaged from the top plate 5, and the top plate 5 and the filter plate 2 can be removed, thus facilitating the individual cleaning and maintenance of the filter plate 2. During the filtration operation of the filter plate 2, the servo motor 11 drives the incomplete gear 12 to rotate. The incomplete gear 12 intermittently meshes with the rack 3, which can drive the filter plate 2 to move down and stretch the spring 6. After the incomplete gear 12 separates from the rack 3, the spring 6 forces the filter plate 2 to return to its original position. After the position of the filter plate 2 stabilizes, the incomplete gear 12 meshes with the rack 3 again, and the cycle repeats, which can make the filter plate 2 swing up and down, making the filter plate 2 less prone to clogging. The filter plate 2 can generate dynamic vibration and displacement without shaking up and down. This physical action can effectively break the adsorption force or bridging phenomenon between the solid particles on the filter plate 2 and the filter holes, shake off the impurities blocking the filter holes, prevent the filter plate 2 from being blocked due to the accumulation of impurities in long-term filtration, and ensure the continuity and efficiency of coolant filtration.

[0030] In a further preferred embodiment of this utility model:

[0031] A valve 10 is installed on the drain pipe 7, and the opening and closing of the valve 10 controls the opening and closing of the drain pipe 7.

[0032] The memory 1 has a heat dissipation vent 13 at its upper end, and multiple heat dissipation fins 14 are fixedly installed on the outside of the memory 1, with one end of each heat dissipation fin extending into the interior of the memory 1. The heat dissipation vent 13 is used to dissipate the temperature of the coolant inside the memory 1, and the heat dissipation fins 14 work together to cool the coolant.

[0033] The memory 1 contains a magnet 22 located at the end of the inlet pipe 8. The magnet 22 attracts the coolant flowing into the inlet pipe 8, and small metal debris can be attracted to the magnet 22, preventing small metal debris from entering the coolant and the suction pump 21.

[0034] An inner shaft 18 is rotatably mounted inside the memory 1. The inner shaft 18 is fixedly connected to a magnet 22. A synchronous belt mechanism 19 is installed between the inner shaft 18 and the output shaft of the servo motor 11. Liquid level scale lines are provided on the outside of the memory 1. Multiple stirring blades 20 are fixedly mounted on the inner shaft 18.

[0035] The inner shaft 18 is driven to rotate synchronously by the synchronous belt mechanism 19, and the magnets 22 on the inner shaft 18 rotate synchronously. Different faces of the magnets 22 can rotate to face the end of the liquid inlet pipe 8, thereby avoiding the fixed face of the magnets 22 from adsorbing and improving the adsorption efficiency of the magnets 22. Multiple stirring blades 20 rotate synchronously with the inner shaft 18, and the stirring blades 20 can stir the coolant in the storage tank 1 to accelerate the heat dissipation of the coolant.

[0036] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0037] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A coolant circulation device for crankshaft grinding, characterized in that, Includes a memory (1), in which a filter plate (2) is provided, a rack (3) is fixedly installed at the bottom of the filter plate (2), two spaced vertical rods (4) are fixedly installed at the top of the filter plate (2), a top plate (5) is provided at the upper end of the filter plate (2), the upper end of the vertical rods (4) penetrates the top plate (5), and springs (6) are sleeved on each of the vertical rods (4), with the two ends of the springs (6) fixedly connected to the top plate (5) and the filter plate (2) respectively; The memory (1) is provided with limiting mechanisms on both sides, and the limiting mechanisms limit the top plate (5). A suction pump (21) is fixedly installed outside the memory (1). The inlet end of the suction pump (21) is connected to and fixedly installed with an inlet pipe (8). The inlet pipe (8) is connected to the inner cavity of the memory (1). The outlet end of the suction pump (21) is connected to and fixedly installed with an outlet pipe (7). The end of the outlet pipe (7) is connected to and fixedly installed with an oil nozzle (9). The oil nozzle (9) is located above the filter plate (2). A servo motor (11) is fixedly installed outside the memory (1). An incomplete gear (12) is provided inside the memory (1). The incomplete gear (12) is fixedly installed on the output shaft of the servo motor (11).

2. The coolant circulation device for crankshaft grinding as described in claim 1, characterized in that, A valve (10) is installed on the drain pipe (7).

3. The coolant circulation device for crankshaft grinding as described in claim 1, characterized in that, The memory (1) has a heat dissipation port (13) at the top and multiple heat dissipation fins (14) are fixedly installed on the outside of the memory (1). One end of the heat dissipation fins (14) extends into the inside of the memory (1).

4. The coolant circulation device for crankshaft grinding as described in claim 1, characterized in that, The limiting mechanism includes a limiting rod (15) disposed on the memory (1). One end of the limiting rod (15) passes through the memory (1) and is inserted into the top plate (5). A circular ring (16) is fixedly installed on the limiting rod (15). An elastic element (17) is provided on the outer sleeve of the limiting rod (15). The two ends of the elastic element (17) are fixedly connected to the circular ring (16) and the memory (1), respectively.

5. The coolant circulation device for crankshaft grinding as described in claim 1, characterized in that, The memory (1) is equipped with a magnet (22), which is located at the end of the liquid inlet pipe (8).

6. The coolant circulation device for crankshaft grinding as described in claim 5, characterized in that, An inner shaft (18) is rotatably mounted inside the memory (1). The inner shaft (18) is fixedly connected to a magnet (22). A synchronous belt mechanism (19) is installed between the inner shaft (18) and the output shaft of the servo motor (11).

7. The coolant circulation device for crankshaft grinding as described in claim 1, characterized in that, The memory (1) is provided with liquid level scale lines on its exterior.

8. The coolant circulation device for crankshaft grinding as described in claim 6, characterized in that, Multiple stirring blades (20) are fixedly installed on the inner shaft (18).