Cooling liquid system of gear grinding machine

Abstract

The utility model discloses a cooling liquid system of a gear grinding machine, which relates to the technical field of cooling of gear grinding machines and comprises a cooling liquid tank, a filtering mechanism mounted in the cooling liquid tank and used for filtering cooling liquid, and a cooling mechanism arranged on the outer side of the cooling liquid tank and used for cooling the cooling liquid, the filtering mechanism comprises a conical filter screen which is fixedly arranged in the middle of the inner wall of the cooling liquid tank and is provided with an upward opening, and a screen cylinder which is detachably arranged in the center of the bottom of the conical filter screen; the first bristles are driven by the motor to rotate, scrap iron on the top of the conical filter screen can be brushed away and pushed, the scrap iron can be pushed into the net cylinder to be collected in a centralized mode in cooperation with guiding of the inner inclined face of the conical filter screen, the cooling liquid filtering rate of the conical filter screen is increased, a worker can take down the net cylinder from the conical filter screen by pulling the net cylinder upwards, and the working efficiency is improved. And the scrap iron collected in the net barrel can be conveniently taken out and recycled in a concentrated mode, the net barrel which moves upwards can be dredged through second bristles, and the cleaning strength of workers on the net barrel in the later period is reduced.

Description

Technical Field

[0001] This application relates to the technical field of gear grinding machine cooling, and particularly to a coolant system for a gear grinding machine. Background Art

[0002] A gear grinding machine is a gear processing machine tool that uses a grinding wheel as a grinding tool to process the tooth surfaces of cylindrical gears or certain gears (such as bevel gears) and cutting tools. According to the different gear grinding principles, gear grinding machines are divided into generating grinding wheel gear grinding machines and form grinding wheel gear grinding machines. When a gear grinding machine grinds gears using a grinding wheel, a certain amount of iron filings will be generated, and the temperature of these iron filings is relatively high. During the grinding contact between the grinding wheel and the gear workpiece, it will cause wear of the grinding wheel and rough unevenness of the gear meshing surface. Therefore, during the operation of the gear grinding machine, it is necessary to use the method of coolant spraying to clean the iron filings. On the one hand, the iron filings are washed away by the coolant, and on the other hand, the temperature of the grinding wheel and the gear workpiece is reduced.

[0003] The patent with the publication number CN211101963U discloses "a coolant temperature control system for a gear grinding machine, including: a coolant tank for storing coolant, and a stirring device is arranged in the coolant tank; a housing that wraps the coolant tank, and a chamber is formed between the housing and the coolant tank; a water inlet pipe, one end of which is communicated with the upper end of the chamber, and the other end is connected to a water tank through a water pump, and a pipeline heater is connected to the water inlet pipe. The temperature control system of the present invention can not only heat up the coolant but also cool down the coolant, so as to ensure that the gear grinding machine can work normally under different temperature conditions".

[0004] Regarding the above related technologies, the inventor believes that a large amount of iron filings will accumulate on the top of the filter screen after long-term use, and these iron filings will block a large area of the mesh holes of the filter screen, thereby reducing the filtering rate of the filter screen and the processing efficiency of the coolant. Therefore, it needs to be improved. Content of the Utility Model

[0005] In order to solve the above problems, this application provides a coolant system for a gear grinding machine.

[0006] The coolant system for a gear grinding machine provided by this application adopts the following technical solution:

[0007] A coolant system for a gear grinding machine includes a coolant tank, a filtering mechanism installed in the coolant tank and used for filtering the coolant, and a cooling mechanism arranged outside the coolant tank and used for cooling the coolant. The filtering mechanism includes a conical filter screen fixedly arranged in the middle of the inner wall of the coolant tank and opening upward, and a mesh cylinder detachably arranged at the center of the bottom of the conical filter screen;

[0008] A cleaning mechanism is provided inside the top end of the coolant tank. The cleaning mechanism includes a motor installed at the top of the coolant tank and coaxial with the conical filter screen, a rotating frame fixedly installed on the outer wall of the output end of the motor, and a number of first bristles fixedly installed at the bottom of the rotating frame for brushing and pushing the iron filings at the top of the conical filter screen into the mesh cylinder after the rotating frame rotates.

[0009] By adopting the above technical solution, the motor drives the first bristles to rotate, so that the first bristles can brush and push the iron filings at the top of the conical filter screen after rotation. With the guidance of the inner inclined surface of the conical filter screen, the iron filings can be pushed into the mesh cylinder for centralized collection, thereby improving the filtering rate of the conical filter screen for the coolant.

[0010] Preferably, a tank cover is fixedly installed at the top of the coolant tank. The motor is fixedly installed at the center of the bottom of the tank cover. One side of the inner wall of the coolant tank is fixedly provided with a return pipe located above the filtering mechanism. A support ring is fixedly installed on the outer wall of the top end of the mesh cylinder. The support ring is movably installed in a matching annular groove opened on the top surface of the bottom end of the conical filter screen. A fixing ring is fixedly installed at the bottom end of the conical filter screen. The mesh cylinder is located inside the fixing ring. Second bristles are fixedly installed on the inner wall of the fixing ring and are inserted into the mesh holes of the mesh cylinder in a matching manner.

[0011] By adopting the above technical solution, the staff can remove the mesh cylinder from the conical filter screen by pulling up the mesh cylinder, which is convenient for centralized extraction and recycling of the iron filings collected in the mesh cylinder. And the second bristles can dredge the mesh cylinder after it is lifted, reducing the cleaning intensity of the staff for the mesh cylinder in the later stage.

[0012] Preferably, a water pump is fixedly installed at the bottom of the inner wall of the coolant tank. A conduit is fixedly installed inside the output end of the water pump. The cooling mechanism includes a heat exchanger installed on one side of the coolant tank for cooling the coolant through heat exchange. One end of the conduit penetrates the coolant tank and extends into the interior of the heat exchanger. A spray pipe is fixedly installed at the bottom of one end of the heat exchanger for cooling and chip washing of the gear grinding machine with the coolant.

[0013] By adopting the above technical solution, through the pumping of the coolant by the water pump, the filtered coolant can be sent into the heat exchanger, and the heat exchanger cools the coolant by exchanging heat with the external medium. The cooled and filtered coolant can cool and wash the chip of the gear grinding machine through the spray pipe.

[0014] Preferably, an electric heating pipe is fixedly installed at the bottom of the inner wall of the coolant tank. A water temperature gauge for displaying the temperature of the coolant is fixedly installed at one end of the coolant tank.

[0015] By adopting the above technical solution, in winter, the coolant can be heated by the electric heating pipe, so that the coolant will not freeze due to being too cold, and the temperature of the coolant can be maintained within the normal use range.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. By driving the first brush bristles to rotate through a motor, after the first brush bristles rotate, they can brush off and push the iron filings on the top of the conical filter screen. With the guidance of the inner inclined surface of the conical filter screen, the iron filings can be pushed into the mesh cylinder for centralized collection, so as to improve the filtering rate of the conical filter screen for the coolant. The staff can remove the mesh cylinder from the conical filter screen by pulling it up, which is convenient for centralized removal and recycling of the iron filings collected in the mesh cylinder. Moreover, the second brush bristles can dredge the mesh cylinder after it is lifted, reducing the cleaning intensity of the mesh cylinder for the staff in the later stage and facilitating use;

[0018] 2. By pumping the coolant through a water pump, the filtered coolant can be sent into a heat exchanger. The heat exchanger cools the coolant by exchanging heat with the external medium. The cooled and filtered coolant can cool and wash the chips of the gear grinding machine through a spray pipe. In winter, the coolant can be heated by an electric heating tube, so that the coolant will not freeze due to being too cold and the temperature of the coolant can be maintained within the normal use range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of a coolant system of a gear grinding machine according to an embodiment of the present application;

[0020] Figure 2 is the internal structural connection diagram mainly showing the coolant tank and the tank cover according to an embodiment of the present application;

[0021] Figure 3 is mainly shown in an embodiment of the present application Figure 2 is the enlarged view of structure A;

[0022] Figure 4 is the structural schematic diagram mainly showing the coolant tank and the tank cover according to an embodiment of the present application;

[0023] Reference numerals: 1, coolant tank; 11, conical filter screen; 12, mesh cylinder; 13, support ring; 14, return pipe; 15, water pump; 16, conduit; 17, electric heating tube; 18, water temperature gauge; 2, tank cover; 21, motor; 22, rotating frame; 23, first brush bristles; 24, fixing ring; 25, second brush bristles; 3, heat exchanger; 31, spray pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will further describe the present application in detail with reference to the attached Figures 1 - 4 drawings.

[0025] An embodiment of the present application discloses a coolant system for a gear grinding machine.

[0026] A coolant system for a gear grinding machine, referring to Figures 1 - 4, including a coolant tank 1, a filtering mechanism and a cooling mechanism. The coolant tank 1 is in the shape of a round tank. On one side of the inner wall of the coolant tank 1, a return pipe 14 is fixedly arranged above the filtering mechanism. The return pipe 14 can discharge the coolant after flushing the gear grinding machine into the coolant tank 1.

[0027] Refer to Figures 2 - 3 , the filtering mechanism includes a conical filter screen 11 fixedly arranged in the middle of the inner wall of the coolant tank 1 with an upward opening, and a mesh cylinder 12 detachably arranged at the center of the bottom of the conical filter screen 11. The conical filter screen 11 can filter the coolant sent by the return pipe 14, block the iron filings in the coolant, and the inclined plane inside the conical filter screen 11 can guide the iron filings, so that the iron filings can easily flow into the mesh cylinder 12 under the action of gravity and the impact of the coolant. The coolant in the mesh cylinder 12 will drain down through the mesh holes, while the iron filings are left in the mesh cylinder 12.

[0028] Refer to Figures 2 - 3 , a support ring 13 is fixedly arranged on the outer wall of the top end of the mesh cylinder 12. The support ring 13 is movably arranged in a matching annular groove opened on the top surface of the bottom end of the conical filter screen 11. The support ring 13 can connect the mesh cylinder 12 and the conical filter screen 11, and the support ring 13 can support the mesh cylinder 12. The staff can pull up the mesh cylinder 12 to remove the mesh cylinder 12 from the conical filter screen 11, which is convenient for centrally taking out and recycling the iron filings collected in the mesh cylinder 12.

[0029] Refer to Figures 2 - 4 , a box cover 2 is fixedly installed on the top of the coolant tank 1. A cleaning mechanism is arranged inside the top end of the coolant tank 1. The cleaning mechanism includes a motor 21 arranged on the top of the coolant tank 1 and coaxial with the conical filter screen 11, a rotating frame 22 fixedly arranged on the outer wall of the output end of the motor 21, and a plurality of first bristles 23 fixedly arranged at the bottom of the rotating frame 22 for brushing off the iron filings on the top of the conical filter screen 11 and pushing them into the mesh cylinder 12 after the rotating frame 22 rotates. The motor 21 is fixedly arranged at the center of the bottom of the box cover 2. The coolant tank 1 and the box cover 2 can be disassembled and assembled by a lock connection method, so that the coolant tank 1 and the box cover 2 will not rotate relative to each other. The first bristles 23 are in contact with the top of the conical filter screen 11.

[0030] After the motor 21 runs, it will drive the rotating frame 22 to rotate. After the rotating frame 22 rotates, it will drive the first bristles 23 to rotate, so that the first bristles 23 can brush off and push the iron filings on the top of the conical filter screen 11 after rotation. With the guidance of the inner inclined plane of the conical filter screen 11, the iron filings can be pushed into the mesh cylinder 12 for centralized collection, so as to improve the filtering rate of the conical filter screen 11 for the coolant.

[0031] Refer to Figures 2 - 3, a fixing ring 24 is fixedly provided at the bottom end of the conical filter screen 11. The net cylinder 12 is located inside the fixing ring 24. Second bristles 25 which are fixedly provided on the inner wall of the fixing ring 24 and are fitted and inserted into the mesh holes of the net cylinder 12. The fixing ring 24 can connect the conical filter screen 11 and the second bristles 25, and the fixing ring 24 can carry and support the second bristles 25. When the staff pulls up and removes the net cylinder 12, the fixed second bristles 25 can dredge the upwardly moved net cylinder 12, reducing the cleaning intensity of the staff on the net cylinder 12 in the later stage.

[0032] Referring to Figure 1 , Figure 2 and Figure 4 , a water pump 15 is fixedly installed at the bottom of the inner wall of the coolant tank 1. A conduit 16 is fixedly provided inside the output end of the water pump 15. The cooling mechanism includes a heat exchanger 3 provided on one side of the coolant tank 1 for cooling the coolant through heat exchange. One end of the conduit 16 penetrates through the coolant tank 1 and extends into the interior of the heat exchanger 3. A spray pipe 31 for cooling the gear grinding machine and washing chips by means of the coolant is fixedly provided at the bottom of one end of the heat exchanger 3.

[0033] The water pump 15 can pump out the coolant in the coolant tank 1, and send the filtered coolant into the heat exchanger 3 through the conduit 16. The heat exchanger 3 cools the coolant by means of heat exchange with external liquids and other media. The cooled and filtered coolant can cool the gear grinding machine through the spray pipe 31 and wash away part of the iron chips on the surface of the workpiece to perform chip washing.

[0034] Referring to Figures 1 - 2 , an electric heating pipe 17 is fixedly provided at the bottom of the inner wall of the coolant tank 1. A water temperature gauge 18 for displaying the temperature of the coolant is fixedly provided at one end of the coolant tank 1. The staff can check the temperature of the coolant in the coolant tank 1 through the water temperature gauge 18. In winter, when the temperature of the coolant is too low, the electric heating pipe 17 can be turned on to heat and raise the temperature of the coolant, so that the temperature of the coolant can be maintained within the normal use range, avoiding the coolant from freezing due to being too cold. When the coolant is heated up, the staff can stop the circulation and supply of the heat exchange medium in the heat exchanger 3, so that the heat exchanger 3 stops heat exchange, so that the heated coolant can be sprayed through the spray pipe 31 without heat exchange and cooling when flowing through the heat exchanger 3.

[0035] The implementation principle of a coolant system of a gear grinding machine in an embodiment of the present application is:

[0036] During use, the return pipe 14 can discharge the coolant after flushing the gear grinding machine into the coolant tank 1. Components such as the conical filter screen 11 in the filtering mechanism can filter the coolant flowing into the coolant tank 1, block iron filings, and the filtered coolant can flow to the bottom of the coolant tank 1. At this time, the water pump 15 can pump out the coolant at the bottom of the coolant tank 1 and send the filtered coolant into the heat exchanger 3 through the conduit 16. The heat exchanger 3 cools the coolant by exchanging heat with external liquids and other media, and the cooled and filtered coolant can cool and wash the chips of the gear grinding machine through the spray pipe 31 to carry out the circulation of the coolant;

[0037] Meanwhile, turn on the motor 21. After the motor 21 operates, it will drive the rotating frame 22 to rotate. After the rotating frame 22 rotates, it will drive the first brush bristles 23 to rotate, so that the first brush bristles 23 can brush off and push the iron filings at the top of the conical filter screen 11. With the guidance of the inner inclined surface of the conical filter screen 11, the iron filings can be pushed into the mesh cylinder 12 for centralized collection, so as to improve the filtering rate of the conical filter screen 11 for the coolant;

[0038] When it is necessary to take out the iron filings, the staff can detach components such as the motor 21 and the box cover 2 from the top of the coolant tank 1 as a whole, and then pull up the mesh cylinder 12. At this time, the fixed second brush bristles 25 can dredge the mesh cylinder 12 after it is lifted. The lifted mesh cylinder 12 will slowly separate from the conical filter screen 11, which is convenient for the staff to centrally take out and recycle the iron filings collected in the mesh cylinder 12.

[0039] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A coolant system for a gear grinding machine, comprising a coolant tank (1), a filtering mechanism installed in the coolant tank (1) for filtering the coolant, and a cooling mechanism provided outside the coolant tank (1) for cooling the coolant, characterized in that: The filtering mechanism includes a conical filter screen (11) fixedly arranged in the middle of the inner wall of the coolant tank (1) with an upward opening, and a mesh cylinder (12) detachably arranged at the center of the bottom of the conical filter screen (11); A cleaning mechanism is arranged inside the top end of the coolant tank (1). The cleaning mechanism includes a motor (21) arranged at the top of the coolant tank (1) and coaxial with the conical filter screen (11), a rotating frame (22) fixedly arranged on the outer wall of the output end of the motor (21), and a plurality of first bristles (23) fixedly arranged at the bottom of the rotating frame (22) for brushing the iron filings on the top of the conical filter screen (11) away and pushing them into the mesh cylinder (12) after the rotating frame (22) rotates.

2. The coolant system of a gear grinding machine according to claim 1, characterized in that: A tank cover (2) is fixedly installed on the top of the coolant tank (1), and the motor (21) is fixedly arranged at the center of the bottom of the tank cover (2).

3. The coolant system of a gear grinding machine according to claim 1, characterized in that: One side of the inner wall of the coolant tank (1) is fixedly provided with a return pipe (14) located above the filtering mechanism.

4. A coolant system for a gear grinding machine according to claim 1, wherein: A support ring (13) is fixedly arranged on the outer wall of the top end of the mesh cylinder (12), and the support ring (13) is movably arranged in a matching annular groove formed on the top surface of the bottom end of the conical filter screen (11).

5. The coolant system of a gear grinding machine according to claim 1, characterized in that: A fixing ring (24) is fixedly arranged at the bottom end of the conical filter screen (11). The mesh cylinder (12) is located inside the fixing ring (24), and second bristles (25) fixedly arranged on the inner wall of the fixing ring (24) are inserted into the mesh holes of the mesh cylinder (12) in a matching manner.

6. The coolant system of a gear grinding machine according to claim 1, wherein: A water pump (15) is fixedly installed at the bottom of the inner wall of the coolant tank (1), and a conduit (16) is fixedly arranged inside the output end of the water pump (15).

7. The coolant system of a gear grinding machine according to claim 6, wherein: The cooling mechanism includes a heat exchanger (3) arranged on one side of the coolant tank (1) for cooling the coolant through heat exchange. One end of the conduit (16) penetrates the coolant tank (1) and extends into the inside of the heat exchanger (3). A spray pipe (31) for cooling the gear grinding machine and washing chips with the coolant is fixedly arranged at the bottom of one end of the heat exchanger (3).

8. The coolant system of a gear grinding machine according to claim 1, characterized in that: An electric heating pipe (17) is fixedly arranged at the bottom of the inner wall of the coolant tank (1), and a water temperature gauge (18) for displaying the temperature of the coolant is fixedly arranged at one end of the coolant tank (1).

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