A cutting machine with high efficiency heat dissipation

Abstract

The present invention discloses a cutting machine with high efficiency in heat dissipation, comprising a cutting machine body; wherein, it also comprises a heat dissipation device for dissipating heat from the main shaft bearing of the cutting machine body by flowing coolant. The heat dissipation device comprises a coolant delivery pipeline for delivering coolant to the heating parts of the cutting machine body; the coolant delivery pipeline comprises two or more shunt pipelines corresponding one to one to the two or more heating parts for cooling. The shunt pipeline is equipped with a valve for matching the coolant flow rate according to the heat generation of the heating parts. After adopting the above structure, compared with the prior art, the present invention can fully cool the bearings and the main shaft, and has a fast heat dissipation speed and high heat dissipation efficiency. At the same time, the coolant has a circulating oil circuit, which saves the amount of coolant used, reduces the pollution and consumption of the coolant, and greatly saves the cooling cost.

Description

Technical Field

[0001] The invention relates to the field of cutting machines, and in particular to a cutting machine with high-efficiency heat dissipation. Background Art

[0002] The cutting machine is mainly used to cut and separate the plate in the process of mechanical processing. The existing cutting machine is mainly provided with a main shaft connected in a rotation manner in the main shaft box, a cutting saw blade is installed on the main shaft, and the main shaft is driven to rotate by a driving device, thereby driving the cutting saw blade to cut.

[0003] However, during the cutting process, the high-speed rotation of the spindle will cause the temperature of the spindle and the bearing to be too high, which will cause the spindle and the bearing to expand and affect the cutting accuracy. For this reason, a method of using coolant to dissipate heat inside the cutting machine is designed. Although the use of coolant can effectively reduce the operating temperature of the spindle, it ignores the cooling of the bearing. Since the bearing is mainly sealed and installed at the front and rear ends of the spindle, it is difficult for the coolant to flow through the bearing and cool it. The bearing is prone to expansion and deformation in a long-term high-temperature environment. In more serious cases, the bearing may even lock, causing damage to the spindle and motor.

[0004] In view of this, the applicant conducted in-depth research on the above issues, which led to the present case. Summary of the invention

[0005] The main purpose of the present invention is to provide a cutting machine with high heat dissipation efficiency, which can fully cool the bearings and the main shaft, and has a fast heat dissipation speed and high heat dissipation efficiency.

[0006] In order to achieve the above object, the solution of the present invention is:

[0007] A cutting machine with high efficiency in heat dissipation comprises a cutting machine body; wherein, it also comprises a heat dissipation device for dissipating heat from a main shaft bearing of the cutting machine body through flowing cooling liquid.

[0008] Furthermore, the heat dissipation device includes a coolant delivery pipeline for delivering coolant to the heating parts of the cutting machine body; the coolant delivery pipeline includes more than two shunt pipelines corresponding one-to-one to more than two heating parts for cooling.

[0009] Furthermore, the diversion pipeline is provided with a valve for matching the flow rate of the coolant according to the heat generation of the heating part.

[0010] Furthermore, the cutting machine body includes a main spindle box; the diversion pipeline is arranged in the main spindle box and extends toward the heating part.

[0011] Furthermore, the valve is arranged in the spindle box.

[0012] Furthermore, the diversion pipeline also includes a diversion valve, and the valve is arranged in the diversion valve.

[0013] Furthermore, the diverter valve is installed on the inner wall of the spindle box.

[0014] Furthermore, it is characterized in that: the heat dissipation device includes a driving device for driving the flow of coolant.

[0015] Furthermore, the driving device includes a pump, and the pump is arranged in the spindle box.

[0016] Furthermore, the cutting machine body includes a power device for driving the main shaft to rotate.

[0017] Furthermore, the pump is powered by the power device.

[0018] Furthermore, the power device includes an electric motor.

[0019] Furthermore, the power input end of the pump is transmission-connected to the power output end of the motor.

[0020] Furthermore, the power device also includes a transmission device connected between the power output end of the motor and the main shaft.

[0021] Furthermore, the transmission device includes a first transmission output end transmission-connected to the main shaft, and a second transmission output end transmission-connected to the power input end of the pump.

[0022] Furthermore, the pump has a power input shaft drivingly connected to the second transmission output end.

[0023] Furthermore, the transmission device includes a power output shaft transmission-connected to the power input shaft.

[0024] Furthermore, the power input shaft and the power output shaft are connected together via a transmission connecting rod.

[0025] Furthermore, the power input shaft and the transmission connecting rod are connected together through a coupling.

[0026] Furthermore, the power output shaft and the transmission connecting rod are connected together via a flange.

[0027] Furthermore, the power input shaft and the coupling are connected via a flat key.

[0028] Furthermore, the coupling and the transmission connecting rod are connected via a flat key.

[0029] Furthermore, the flange and the transmission connecting rod are connected via a flat key.

[0030] Furthermore, the transmission device also includes a first transmission component connected between the motor and the power output shaft, and a second transmission component connected between the power output shaft and the main shaft.

[0031] Furthermore, the first transmission component includes a first gear disposed on the output shaft of the motor, and a second gear disposed on the power output shaft and matched with the first gear.

[0032] Furthermore, the second transmission component includes a third gear disposed on the main shaft, and external teeth formed on the circumferential surface of the power output shaft and matching with the third gear.

[0033] Furthermore, a liquid extraction pipe for extracting coolant is provided at the liquid inlet end of the pump.

[0034] Furthermore, the liquid inlet end of the liquid extraction tube is located in the spindle box.

[0035] Furthermore, the liquid inlet end of the liquid extraction tube is inserted into the coolant of the spindle box.

[0036] Furthermore, the heat dissipation device also includes a filtering device for filtering the coolant.

[0037] Furthermore, the liquid inlet end of the filtering device is connected to the liquid outlet end of the pump.

[0038] Furthermore, the liquid inlet end of the filter device and the liquid outlet end of the pump are connected together through a first pipe.

[0039] Furthermore, the filtering device is connected to the outside of the spindle box.

[0040] Furthermore, the first pipe passes through the side wall of the spindle box.

[0041] Furthermore, the first pipe is sealed and connected to the side wall of the spindle box.

[0042] Furthermore, it also includes a cooling device for cooling the coolant.

[0043] Furthermore, the cooling device is connected between the liquid outlet of the filtering device and the diverter valve.

[0044] Furthermore, the liquid inlet end of the cooling device and the liquid outlet end of the filtering device are connected together through a second pipe.

[0045] Furthermore, the liquid outlet of the cooling device and the liquid inlet of the diverter valve are connected together through a third pipeline.

[0046] Furthermore, the cooling device is connected to the outside of the spindle box.

[0047] Furthermore, the third pipe passes through the side wall of the spindle box.

[0048] Furthermore, the third pipe is sealed and connected to the side wall of the spindle box.

[0049] Furthermore, the spindle box includes a liquid storage chamber for storing coolant, a first cooling chamber for cooling the bearing at one end of the spindle, and a second cooling chamber for cooling the bearing at the other end of the spindle.

[0050] Furthermore, the liquid storage chamber is located between the first cooling chamber and the second cooling chamber.

[0051] Furthermore, one end of the liquid storage cavity is connected to the first cooling cavity and the other end is connected to the second cooling cavity.

[0052] Furthermore, the side wall of the liquid storage cavity is provided with a first communication port communicating with the first cooling cavity, and a second communication port communicating with the second cooling cavity.

[0053] Furthermore, the first communication port includes a first liquid inlet for supplying cooling liquid into the first cooling cavity, and the second communication port includes a second liquid inlet for supplying cooling liquid into the second cooling cavity.

[0054] Furthermore, the shunt pipeline includes a first shunt pipeline and a second shunt pipeline, the first shunt pipeline is connected to the first liquid inlet; the second shunt pipeline is connected to the second liquid inlet.

[0055] Furthermore, the first liquid inlet includes a first liquid inlet hole and a second liquid inlet hole, the first diversion pipeline includes a first diversion branch pipe and a second diversion branch pipe, the first liquid inlet hole is connected to the first diversion branch pipe, and the second liquid inlet hole is connected to the second diversion branch pipe.

[0056] Furthermore, the spindle box is also provided with a transition chamber connected between the liquid storage chamber and the first cooling chamber.

[0057] Furthermore, a clamping hole communicating with the liquid storage cavity is provided on the side wall of the transition cavity, and the clamping hole fixes the first branch pipe and the second branch pipe.

[0058] Furthermore, the first connecting port also has a first liquid outlet for the cooling liquid to flow back to the liquid storage chamber, and the second connecting port also has a second liquid outlet for the cooling liquid to flow back to the liquid storage chamber.

[0059] Furthermore, the first cooling cavity includes a first accommodating cavity for accommodating the first bearing, and a second accommodating cavity for accommodating the second bearing.

[0060] Furthermore, the second accommodating cavity is arranged corresponding to the second liquid inlet hole.

[0061] Furthermore, the second accommodating chamber is arranged directly below the second liquid inlet hole.

[0062] Furthermore, the first cooling chamber also includes an oil guide sleeve for guiding the coolant from the first liquid inlet to the first accommodating chamber and the second accommodating chamber.

[0063] Furthermore, the oil guide sleeve is arranged corresponding to the first liquid inlet hole.

[0064] Furthermore, the oil guide sleeve is arranged directly below the first liquid inlet hole.

[0065] Furthermore, the oil guide sleeve includes an inner limit sleeve sleeved on the main shaft and abutting between the first bearing and the inner ring of the second bearing, and an outer limit sleeve sleeved outside the inner limit sleeve and abutting between the first bearing and the outer ring of the second bearing.

[0066] Furthermore, a liquid conducting gap is provided between the inner limiting sleeve and the outer limiting sleeve, and a liquid conducting hole communicating with the gap is formed on the outer limiting sleeve.

[0067] Furthermore, the bearing clearances of the first bearing and the second bearing are both connected to the liquid guiding gap.

[0068] Furthermore, the bearing clearances of the first bearing and the second bearing both correspond to the liquid guiding gap.

[0069] Furthermore, an annular liquid storage groove connected with the liquid guide hole is formed on the circumferential surface of the outer limiting sleeve, and the annular liquid storage groove is connected with the first liquid inlet hole.

[0070] Furthermore, the annular liquid storage groove corresponds to the first liquid inlet hole.

[0071] Furthermore, the annular liquid storage tank is arranged directly below the first liquid inlet hole.

[0072] Furthermore, the first cooling chamber is provided with a bearing fixing member at the first liquid outlet.

[0073] Furthermore, the bearing fixing piece is sleeved on the main shaft, and the end face of the bearing fixing piece abuts against the end face of the inner ring of the second bearing.

[0074] Furthermore, a liquid outlet gap is provided between the outer circumferential surface of the bearing fixing member and the inner side wall of the first liquid outlet.

[0075] Furthermore, it also includes a first bearing and a second bearing accommodated in the first cooling cavity.

[0076] Furthermore, the second cooling chamber includes a third accommodating chamber for accommodating a third bearing.

[0077] Furthermore, the third accommodating cavity has a mounting groove for accommodating a third bearing.

[0078] Furthermore, the second cooling chamber also includes a fourth accommodating chamber for accommodating the second gear and a fifth accommodating chamber for accommodating the third gear.

[0079] Furthermore, the third accommodating chamber is communicated with the fourth accommodating chamber and the fifth accommodating chamber, and the third accommodating chamber is located between the fourth accommodating chamber and the fifth accommodating chamber.

[0080] Furthermore, it also includes a third bearing accommodated in the second cooling cavity.

[0081] Furthermore, the liquid storage cavity has a liquid storage portion for storing coolant and a gas storage portion for storing gas.

[0082] After adopting the above structure, when the cutting machine of the present invention is working, the valve matches the coolant of different flow rates according to the different heat generation of the bearings at both ends of the main shaft and delivers it to the heating part of the bearing through the shunt pipe. Part of the coolant is delivered to the first liquid inlet and the second liquid inlet through the shunt pipe, and flows into the first cooling chamber to cool the first bearing and the second bearing arranged at the front end of the main shaft. The other part of the coolant is delivered to the third liquid inlet through the shunt pipe, and flows into the second cooling chamber to cool the third bearing arranged at the rear end of the main shaft in the second cooling chamber. After that, the coolant in the first cooling chamber flows back to the liquid storage chamber through the first liquid outlet, and the coolant in the second cooling chamber flows back to the liquid storage chamber through the second liquid outlet, and the coolant in the liquid storage chamber dissipates heat and cools the main shaft. Then the pump extracts the coolant after absorbing heat and heating in the liquid storage chamber and delivers it to the filtering device and the cooling device in turn for filtering and cooling, and finally delivers the cooled coolant to the valve, waiting for the valve to distribute and deliver it next time, thereby realizing the function of circulating cooling of the main shaft and the bearing.

[0083] Compared with the prior art, the beneficial effects are:

[0084] Firstly, the present invention uses valves to adjust the heat generation of the bearings at both ends of the main shaft, matches the flow rate of the coolant, and directly delivers the coolant to the heated bearing parts through a shunt pipe, thereby making the cooling more efficient.

[0085] Secondly, the present invention uses a single motor to drive the main shaft and the pump through a transmission device, which reduces the cost of the power device and fully utilizes the kinetic energy of the motor, thus achieving better energy-saving effects. In addition, the pump is arranged in the main shaft box, which is conducive to protecting the pump and preventing the pump from being damaged by bumps.

[0086] Thirdly, the present invention drives the coolant to flow through a pump, a filter device, a cooling device and a valve to form a continuously circulating cooling pipeline, and filters the waste residue in the coolant through the filter device to prevent the waste residue from flowing into the bearing with the coolant and damaging the bearing, thereby protecting the bearing and the spindle. The coolant is cooled by the cooling device to improve the cooling and heat absorption effect of the coolant. By repeatedly cooling the coolant, the cooling time of the coolant can be extended, so there is no need to frequently replace the coolant in the spindle box, saving the coolant cost and further enhancing the heat dissipation effect of the present invention.

[0087] Fourthly, the spindle box of the present invention has a liquid storage cavity, a first cooling cavity and a second cooling cavity which are connected to each other, so that the coolant circulates only in the spindle box, thereby preventing the coolant from being contaminated and further extending the service life of the coolant. It can also effectively prevent the coolant from leaking out, making the cutting machine of the present invention more environmentally friendly and clean when working. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] Figure 1 It is a three-dimensional diagram of the appearance structure of the cutting body of the present invention.

[0089] Figure 2 Another perspective view of the external structure of the cutting body of the present invention.

[0090] Figure 3 It is a structural cross-sectional side view of the cutting body of the present invention.

[0091] Figure 4 It is another structural cross-sectional side view of the cutting body of the present invention.

[0092] Figure 5 for Figure 3 A partial enlarged view of area A.

[0093] Figure 6 for Figure 4 A partial enlarged view of area B.

[0094] Figure 7 It is a partial cross-sectional stereoscopic diagram of the structure of the cutting body.

[0095] In the figure:

[0096] Diverter pipe-10; first diverter pipe-101; first diverter branch pipe-1011; second diverter branch pipe-1012; second diverter pipe-102; diverter valve-11; pump-12; power input shaft-121; liquid extraction pipe-122; filter device-13; first pipe-131; cooling device-14; second pipe-141; third pipe-142; spindle box-2; liquid storage chamber-21; first cooling chamber-22; first liquid inlet-221; first liquid inlet hole-2211; second liquid inlet hole-2212; first liquid outlet-222; first accommodating chamber-223; second accommodating chamber-224; oil guide sleeve-225; inner limit sleeve-2251; outer limit sleeve-225 2; liquid guide gap-2253; annular liquid storage tank-2254; liquid guide hole-2255; bearing fixing part-226; liquid outlet gap-227; second cooling chamber-23; second liquid inlet-231; second liquid outlet-232; third accommodating chamber-233; fourth accommodating chamber-234; fifth accommodating chamber-235; installation groove-2351; transition chamber-24; clamping hole-241; power device-3; motor-31; transmission device-32; power output shaft-321; transmission connecting rod-322; first gear-323; second gear-324; third gear-325; external tooth-326; main shaft-4; first bearing-51; second bearing-52; third bearing-53. DETAILED DESCRIPTION

[0097] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0098] like Figure 1-7 As shown, a cutting machine with high efficiency heat dissipation includes a cutting machine body; wherein, it also includes a heat dissipation device for dissipating heat from the main shaft 4 bearing of the cutting machine body through flowing coolant. The heat dissipation device includes a coolant delivery pipeline for delivering coolant to the heating part of the cutting machine body; the coolant delivery pipeline includes more than two shunt pipelines 10 corresponding to more than two heating parts for cooling. The shunt pipeline 10 is equipped with a valve (not shown) for matching the coolant flow rate according to the heat generation of the heating part. In this embodiment, the valve can be an adjustable solenoid valve.

[0099] After adopting the above structure, when the cutting machine of the present invention is working, the valve matches the coolant of different flow rates according to the different heat generation of the bearings at both ends of the main shaft 4 and delivers it to the heating part of the bearing through the shunt pipe 10. Compared with the prior art, the present invention can directly deliver the coolant to the heating part of the bearing through the shunt pipe 10, which can fully cool the bearing and prevent the bearing from being deformed and damaged due to high temperature. In addition, the present invention distributes coolant of different flow rates according to the different heat generation of the heating part of the bearing, making the cooling more accurate and efficient.

[0100] Preferably, the cutting machine body includes a main spindle box 2; the shunt pipe 10 is arranged in the main spindle box 2 and extends toward the heating part. This structure can protect the shunt pipe 10 and prevent the shunt pipe 10 from being damaged by collision.

[0101] Preferably, the valve is arranged in the main shaft box 2. With the above structure, the valve can be prevented from being damaged by collision.

[0102] Preferably, the diverter pipe 10 further comprises a diverter valve 11, and the valve is arranged in the diverter valve 11. With this structure, the flow is first matched and calculated by the valve, and then the coolant with the calculated flow is delivered to the diverter pipe 10 through the diverter valve 11.

[0103] Preferably, the diverter valve 11 is installed on the inner wall of the spindle box 2, which can protect the diverter valve 11 and prevent the diverter valve 11 from being damaged by collision.

[0104] Preferably, the heat dissipation device includes a driving device for driving the coolant to flow, and the driving device provides a driving force for the coolant to flow, so that the coolant can circulate in the spindle box 2.

[0105] Preferably, the driving device includes a pump 12. The pump 12 is relatively cheap and can reduce costs. The pump 12 is arranged in the spindle box 2, which is convenient for the pump 12 to extract coolant and can prevent the pump 12 from being bumped.

[0106] Preferably, the cutting machine body includes a power device 3 for driving the main shaft 4 to rotate, and the pump 12 is powered by the power device 3. This structure only needs a single power device 3 to drive the main shaft 4 to rotate and the pump 12 to operate at the same time, which reduces the cost of the power device 3 and fully utilizes the kinetic energy of the power device 3, thereby having a better energy-saving effect.

[0107] Preferably, the power device 3 includes a motor 31. The use of the motor 31 for driving is relatively low-cost and convenient for maintenance, which can effectively reduce costs.

[0108] Preferably, the power input end of the pump 12 is transmission-connected to the power output end of the motor 31. When the motor 31 rotates, the impeller in the pump 12 is driven to rotate, thereby driving the coolant to flow. The mechanical energy output by the motor 31 is fully utilized, while the transmission efficiency of the mechanical energy of the motor 31 is improved.

[0109] Preferably, the power device 3 also includes a transmission device 32 connected between the power output end of the motor 31 and the main shaft 4. The transmission device 32 enables the motor 31 to transmit mechanical energy to the main shaft 4 while driving the pump 12 to operate, thereby driving the main shaft 4 to rotate, thereby improving the mechanical energy utilization rate of the motor 31.

[0110] More preferably, the transmission device 32 includes a first transmission output end transmission-connected to the main shaft 4 , and a second transmission output end transmission-connected to the power input end of the pump 12 .

[0111] Preferably, the pump 12 has a power input shaft 121 that is transmission-connected to the second transmission output end. The power input shaft 121 is connected to the impeller in the pump 12. When working, the second transmission output end transmits the rotational kinetic energy to the power input shaft 121, and the power input shaft 121 drives the impeller to rotate, thereby enabling the pump 12 to extract the coolant and drive the coolant to flow.

[0112] Preferably, the transmission device 32 includes a power output shaft 321 transmission-connected to the power input shaft 121 , one end of the power output shaft 321 is connected to the output shaft of the motor 31 , and the other end is connected to the power input shaft 121 .

[0113] More preferably, the power input shaft 121 and the power output shaft 321 are connected together via a transmission connecting rod 322, so that the power input shaft 121 and the power output shaft 321 can be assembled and disassembled more conveniently.

[0114] Preferably, the power input shaft 121 and the transmission connecting rod 322 are connected together by a coupling. The coupling connection can reduce the installation accuracy and counterweight requirements between the power input shaft 121 and the transmission connecting rod, mitigate impact, change the natural frequency of the shaft system to avoid harmful vibration.

[0115] Preferably, the power output shaft 321 and the transmission connecting rod 322 are connected together by flanges, and a French plate connection is adopted, which makes disassembly and assembly more convenient and has a higher connection strength.

[0116] More preferably, the power input shaft 121 and the coupling are connected via a flat key, which facilitates the transmission of torque and has a simple structure, convenient assembly and disassembly, and high positioning accuracy.

[0117] More preferably, the coupling and the transmission connecting rod 322 are connected by a flat key. The flat key is used to facilitate the transmission of torque, and has a simple structure, convenient disassembly and assembly, and high positioning accuracy.

[0118] Preferably, the transmission device 32 also includes a first transmission component connected between the motor 31 and the power output shaft 321 , and a second transmission component connected between the power output shaft 321 and the main shaft 4 .

[0119] More preferably, in this embodiment, the first transmission component includes a first gear 323 provided on the output shaft of the motor 31, and a second gear 324 provided on the power output shaft 321 and matched with the first gear 323. The gear transmission connection has higher working stability and transmission efficiency, and has a simple structure and is easy to maintain.

[0120] More preferably, in this embodiment, the second transmission component includes a third gear 325 arranged on the main shaft 4, and an external tooth 326 formed on the circumferential surface of the power output shaft 321 and matching with the third gear 325. The gears and the external teeth 326 are connected, which has higher working stability and transmission efficiency, and has a simple structure and is easy to maintain.

[0121] Preferably, a liquid extraction pipe 122 for extracting coolant is provided at the liquid inlet end of the pump 12, so as to facilitate the pump 12 to extract the coolant.

[0122] Preferably, since the coolant circulates in the spindle box 2, the liquid inlet end of the liquid extraction pipe 122 is located in the spindle box 2, which is convenient for extracting the coolant.

[0123] More preferably, the liquid inlet end of the extraction tube 122 is inserted into the coolant of the spindle box 2, so that the pump 12 keeps the liquid inlet end of the extraction tube 122 in a vacuum state when extracting the coolant, which facilitates the rapid extraction of the coolant.

[0124] Preferably, the heat dissipation device also includes a filter device 13 for filtering the coolant. The filter device 13 can filter the waste residue in the coolant to prevent the waste residue from flowing into the bearing along with the coolant and thus damaging the bearing, thereby protecting the bearing and the main shaft 4.

[0125] Preferably, the liquid inlet end of the filter device 13 is connected to the liquid outlet end of the pump 12. After the pump 12 extracts the coolant in the spindle box 2, it is first transported to the filter device 13 to filter the coolant.

[0126] More preferably, in this embodiment, the liquid inlet end of the filter device 13 and the liquid outlet end of the pump 12 are connected together through the first pipe 131, and the pump 12 and the filter device 13 are flexibly connected by the pipe, the connection structure is simple, and disassembly and assembly are more convenient.

[0127] Preferably, the filter device 13 is connected to the outside of the spindle box 2, which is convenient for maintenance and replacement of filter parts, and convenient for collecting and cleaning the filtered residue.

[0128] Preferably, since the filter device 13 is disposed outside the spindle box 2 , the first pipe 131 passes through the side wall of the spindle box 2 .

[0129] More preferably, in order to prevent coolant leakage from the connection between the first pipe 131 and the spindle box 2, the first pipe 131 is sealed and connected to the side wall of the spindle box 2. Specifically, a sealing ring and a sealant can be used to enhance the sealing effect between the spindle box 2 and the first pipe 131.

[0130] Preferably, the heat dissipation device also includes a cooling device 14 for cooling the coolant. The cooling device 14 can cool the coolant to improve the cooling and heat absorption effects of the coolant. By repeatedly cooling the coolant, the cooling time of the coolant can be extended, and there is no need to frequently replace the coolant in the spindle box 2, thereby saving coolant costs and further improving the heat dissipation effect of the present invention.

[0131] Preferably, the cooling device 14 is connected between the liquid outlet of the filter device 13 and the diverter valve 11. After adopting the above structure, the pump 12, the filter device 13, the cooling device 14 and the diverter valve 11 are connected in sequence, the pump 12 extracts the coolant in the spindle box 2 and transports it to the filter device 13 for filtration, and then transports the filtered coolant to the cooling device 14 for cooling, and then transports the cooled filtered liquid to the diverter valve 11 for matching diversion, and finally the coolant is diverted to each heating part for heat dissipation and cooling, and then flows back to the spindle box 2 and is extracted by the pump 12 to repeat the above transport action. The heat dissipation device forms a coolant circulation and delivery loop on the spindle box 2, thereby saving the amount of coolant, while reducing coolant pollution and consumption, and greatly saving cooling costs.

[0132] Preferably, the liquid inlet of the cooling device 14 and the liquid outlet of the filtering device 13 are connected together through a second pipe 141. The flexible pipe connection is adopted, the connection structure is simple, and the disassembly and assembly are more convenient.

[0133] Preferably, the liquid outlet of the cooling device 14 and the liquid inlet of the diverter valve 11 are connected together through a third pipe 142. The flexible pipe connection is adopted, the connection structure is simple, and the disassembly and assembly are more convenient.

[0134] Preferably, the cooling device 14 is connected to the outside of the spindle box 2, which is convenient for repairing the cooling device 14 and replacing cooling parts.

[0135] Preferably, since the cooling device 14 is connected to the outside of the spindle box 2 , the third pipe 142 passes through the side wall of the spindle box 2 .

[0136] More preferably, in order to prevent coolant leakage from the connection between the third pipe 142 and the spindle box 2, the third pipe 142 is sealed and connected to the side wall of the spindle box 2. Specifically, a sealing ring and a sealant can be used to enhance the sealing effect between the spindle box 2 and the third pipe 142.

[0137] Preferably, the spindle box 2 includes a liquid storage chamber 21 for storing coolant, a first cooling chamber 22 for cooling the bearing at one end of the spindle 4, and a second cooling chamber 23 for cooling the bearing at the other end of the spindle 4. In this embodiment, the first bearing 51 and the second bearing 52 are installed in the first cooling chamber 22, and the third bearing 53 is installed in the second cooling chamber 23.

[0138] Preferably, since the spindle 4 passes through the spindle box 2, in the present embodiment, a first bearing 51 and a second bearing 52 are provided at one end of the spindle 4, and a third bearing 53 is provided at the other end of the spindle 4. Therefore, the installation positions of the bearings corresponding to the first cooling cavity 22 and the second cooling cavity 23 are distributed at both ends of the spindle box 2, and the liquid storage cavity 21 is located between the first cooling cavity 22 and the second cooling cavity 23.

[0139] More preferably, one end of the liquid storage chamber 21 is connected to the first cooling chamber 22 and the other end is connected to the second cooling chamber 23. With this structure, the coolant in the first cooling chamber 22 and the second cooling chamber 23 can flow back to the liquid storage chamber 21 toward the middle of the spindle box 2 after absorbing heat and cooling.

[0140] Preferably, the side wall of the liquid storage chamber 21 is provided with a first connecting port connected to the first cooling chamber 22, and a second connecting port connected to the second cooling chamber 23, and the cooling liquid flows into and out of the first cooling chamber 22 through the first connecting port, and the cooling liquid flows into and out of the second cooling chamber 23 through the second connecting port.

[0141] More preferably, the first communication port includes a first liquid inlet 221 for the coolant to enter the first cooling chamber 22 , and the second communication port includes a second liquid inlet 231 for the coolant to enter the second cooling chamber 23 .

[0142] Preferably, the shunt pipe 10 includes a first shunt pipe 101 and a second shunt pipe 102, wherein the first shunt pipe 101 is connected to the first liquid inlet 221; and the second shunt pipe 102 is connected to the second liquid inlet 231. With the above structure, after the coolant is flow matched through the valve, the shunt valve 11 is respectively transported to the first liquid inlet 221 and the second liquid inlet 231 through the first shunt pipe 101 and the second shunt pipe 102, so that the coolant enters the first cooling cavity 22 and the second cooling cavity 23. With the flexible connection of the pipe, the coolant in the pipe can be driven by the pump 12 to accelerate the flow of the coolant into the first liquid inlet 221 and the second liquid inlet 231.

[0143] Preferably, since the first bearing 51 and the second bearing 52 are provided in the first cooling chamber 22, more coolant is required in the first cooling chamber 22, so the first liquid inlet 221 includes a first liquid inlet hole 2211 and a second liquid inlet hole 2212 provided on the upper surface of the first cooling chamber 22, and the first diversion pipe 101 includes a first diversion branch pipe 1011 and a second diversion branch pipe 1012, the first liquid inlet hole 2211 is connected to the first diversion branch pipe 1011, and the second liquid inlet hole 2212 is connected to the second diversion branch pipe 1012. With this structure, coolant can flow into the first liquid inlet hole 2211 and the second liquid inlet hole 2212 at the same time, which can accelerate the flow rate of the coolant flowing into the first cooling chamber 22 and increase the flow rate of the coolant, so that the cooling of the two bearings is more efficient.

[0144] Preferably, in order to prevent the first branch pipe 1011 and the second branch pipe 1012 from moving around in the spindle box 2 and getting tangled with each other, the spindle box 2 is also provided with a transition chamber 24 connected between the liquid storage chamber 21 and the first cooling chamber 22, and the transition chamber 24 is used to accommodate the first branch pipe 1011 and the second branch pipe 1012.

[0145] More preferably, in order to further fix the first branch pipe 1011 and the second branch pipe 1012 , the side wall of the transition chamber 24 is provided with a clamping hole 241 connected to the liquid storage chamber 21 , and the clamping hole 241 is used to fix the first branch pipe 1011 and the second branch pipe 1012 .

[0146] Preferably, the first connecting port also has a first liquid outlet 222 for the cooling liquid to flow back to the liquid storage chamber 21, and the second connecting port has a second liquid outlet 232 for the cooling liquid to flow back to the liquid storage chamber 21; the first liquid outlet 222 is opened on the side wall of the first cooling chamber 22, and the cooling liquid in the first cooling chamber 22 flows out from the first liquid outlet 222 and flows back to the liquid storage chamber 21; the second liquid outlet 232 is opened on the side wall of the second cooling chamber 23, and the cooling liquid in the second cooling chamber 23 flows out from the second liquid outlet 232 and flows back to the liquid storage chamber 21.

[0147] Preferably, the first cooling chamber 22 includes a first accommodating chamber 223 for accommodating the first bearing 51 and a second accommodating chamber 224 for accommodating the second bearing 52 . The first accommodating chamber 223 is used to fix the first bearing 51 , and the second accommodating chamber 224 is used to fix the second bearing 52 .

[0148] Preferably, the second accommodating chamber 224 is arranged corresponding to the second liquid inlet hole 2212 , and the coolant in the second liquid inlet hole 2212 can flow into the second accommodating chamber 224 to cool the second bearing 52 .

[0149] More preferably, the second accommodating chamber 224 is arranged directly below the second liquid inlet hole 2212. This structure enables the coolant in the second liquid inlet hole 2212 to enter the second accommodating chamber 224 more quickly and quickly contact the second bearing 52 to absorb heat, thereby improving the heat dissipation efficiency.

[0150] Preferably, the first cooling chamber 22 further includes an oil guide sleeve 225 for guiding the coolant from the first liquid inlet 221 to the first accommodating chamber 223 and the second accommodating chamber 224. The two end faces of the oil guide sleeve 225 abut against the end faces of the first bearing 51 and the second bearing 52, which has a certain limiting effect on the first bearing 51 and the second bearing 52. At the same time, after the coolant enters the oil guide sleeve 225, the oil guide sleeve 225 can directly divert the coolant to the end faces of the first bearing 51 and the second bearing 52, and cool the first bearing 51 and the second bearing 52 from the inside, thereby accelerating the cooling and making the cooling more efficient.

[0151] Preferably, the oil guide sleeve 225 is arranged corresponding to the first liquid inlet hole 2211, so that the coolant in the first liquid inlet hole 2211 can flow into the oil guide sleeve 225 and be guided to the first bearing 51 and the second bearing 52 under the action of the oil guide sleeve 225, so as to cool and dissipate heat.

[0152] More preferably, the oil guide sleeve 225 is disposed directly below the first liquid inlet hole 2211 to accelerate the flow of the coolant into the oil guide sleeve 225, thereby accelerating the introduction of the coolant into the first bearing 51 and the second bearing 52, further improving the cooling efficiency.

[0153] Preferably, the oil guide sleeve 225 includes an inner limit sleeve 2251 which is sleeved on the main shaft 4 and abuts between the inner rings of the first bearing 51 and the second bearing 52, and an outer limit sleeve 2252 which is sleeved outside the inner limit sleeve 2251 and abuts between the outer rings of the first bearing 51 and the second bearing 52. With the above structure, when the main shaft 4 rotates, the oil guide sleeve 225 abuts against the end faces of the first bearing 51 and the second bearing 52, thereby limiting the movement of the first bearing 51 and the second bearing 52 along the axis direction of the main shaft 4, so that the first bearing 51 and the second bearing 52 are installed more firmly.

[0154] Preferably, a liquid guide gap 2253 is provided between the inner limiting sleeve 2251 and the outer limiting sleeve 2252, and a liquid guide hole 2255 communicating with the gap is formed on the outer limiting sleeve 2252. After adopting the above structure, the coolant in the first liquid inlet hole 2211 enters the liquid guide gap 2253 through the liquid guide hole 2255, and guides the coolant from the liquid guide gap 2253 to the first bearing 51 and the second bearing 52.

[0155] Preferably, the bearing clearances of the first bearing 51 and the second bearing 52 are both connected to the liquid guide gap 2253, so that the coolant can directly flow into the first bearing 51 and the second bearing 52 and perform heat absorption cooling.

[0156] More preferably, the bearing clearance positions of the first bearing 51 and the second bearing 52 both correspond to the liquid guide gap 2553. This structure can accelerate the flow of coolant into the bearing clearance, thereby accelerating the cooling of the bearing.

[0157] Preferably, since the diameter of the liquid guide hole 2255 is small, the speed at which the coolant flows into the liquid guide gap 2253 is slow. In order to prevent the cold zone liquid in the first liquid inlet hole 2211 from flowing around, the peripheral surface of the outer limit sleeve 2252 is formed with an annular liquid storage groove 2254 connected to the liquid guide hole 2255, and the annular liquid storage groove 2254 is connected to the first liquid inlet hole 2211. The annular liquid storage groove 2254 can temporarily store the coolant flowing out of the first liquid inlet hole 2211.

[0158] Preferably, the annular liquid storage groove 2254 corresponds to the first liquid inlet hole 2211 .

[0159] More preferably, the annular liquid storage tank 2254 is disposed directly below the first liquid inlet hole, so as to accelerate the coolant in the first liquid inlet hole 2211 to flow directly into the annular liquid storage tank 2254 .

[0160] Preferably, the first cooling chamber 22 is provided with a bearing fixing member 226 at the first liquid outlet 221 , and the bearing fixing member 226 can fix the first bearing 51 and the second bearing 52 in the first cooling chamber 22 .

[0161] More preferably, the bearing fixing member 226 is sleeved on the main shaft, and the end face of the bearing fixing member 226 abuts against the inner ring end face of the second bearing 52 . The installation structure is simple and convenient for assembly and disassembly, and will not affect the rotation of the second bearing 52 .

[0162] Preferably, a liquid outlet gap 227 is provided between the outer circumferential surface of the bearing fixing member 226 and the inner side wall of the first liquid outlet 2211 , and the coolant in the first cooling cavity 22 absorbs heat and then flows back to the liquid storage cavity 21 through the liquid outlet gap 227 .

[0163] Preferably, it also includes a first bearing 51 and a second bearing 52 accommodated in the first cooling cavity 21 .

[0164] Preferably, the second cooling chamber 23 includes a third accommodating chamber 233 for accommodating the third bearing 53 , and the third accommodating chamber 233 is used to fix the third bearing 53 .

[0165] Preferably, the second cooling chamber 23 includes a third accommodating chamber 233 for accommodating the second gear 324, a fourth accommodating chamber 234 for accommodating the third gear 325, and a fifth accommodating chamber 235 for accommodating the third bearing 53. The fifth accommodating chamber 235 is connected to the third accommodating chamber 233 and the fourth accommodating chamber 234. With the above structure, after the coolant enters the second cooling chamber 23, the transmission device 32 and the third bearing 53 in the second cooling chamber 23 can be cooled at the same time, thereby reducing the overall temperature inside the spindle box 2.

[0166] More preferably, the fifth accommodating chamber 235 is located between the third accommodating chamber 233 and the fourth accommodating chamber 234. With this structure, the second diversion pipe 102 extends into the third accommodating chamber 233. After the coolant flows out from the second diversion pipe 102, it cools the second gear 324, and then flows downward into the fifth accommodating chamber 235 to cool the third bearing 53. Finally, the coolant flows into the fourth accommodating chamber 234 to cool the third gear 325, and then flows out from the second liquid outlet 232 and flows back to the liquid storage chamber 21.

[0167] Preferably, the fifth accommodating cavity 235 has a mounting groove 2351 for positioning and mounting the third bearing 53 , and the third bearing 53 is embedded in the mounting groove 2351 , so that the third bearing 53 is mounted more firmly.

[0168] Preferably, the liquid storage chamber 21 has a liquid storage portion for storing coolant and a gas storage portion for accommodating gas. With this structure, the liquid storage chamber 21 is in a state where coolant and gas coexist, while the pump 12 is filled with coolant in a vacuum state, thereby ensuring that there is always a pressure difference between the liquid storage chamber 21 and the pump 12, so that the pump 12 can maintain normal operation and extract coolant more smoothly.

[0169] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A cutting machine with high efficiency heat dissipation, comprising a cutting machine body; characterized in that: It also includes a heat dissipation device for dissipating heat from the main shaft bearing of the cutting machine body by flowing coolant; the heat dissipation device includes a coolant delivery pipeline for delivering coolant to the heating part of the cutting machine body; the coolant delivery pipeline includes more than two shunt pipelines corresponding to more than two heating parts one by one for cooling; The heat dissipation device includes a driving device for driving the coolant to flow; the driving device includes a pump; the cutting machine body includes a power device for driving the main shaft to rotate; the pump is powered by the power device; The cutting machine body includes a spindle box; the shunt pipe is arranged in the spindle box and extends toward the heating part; the spindle box includes a liquid storage chamber for storing coolant, a first cooling chamber for cooling the bearing at one end of the spindle, and a second cooling chamber for cooling the bearing at the other end of the spindle; the liquid storage chamber is between the first cooling chamber and the second cooling chamber; one end of the liquid storage chamber is connected with the first cooling chamber and the other end is connected with the second cooling chamber; the side wall of the liquid storage chamber is provided with a first connecting port connected with the first cooling chamber, and a second connecting port connected with the second cooling chamber; the first connecting port includes a first liquid inlet for supplying coolant to the first cooling chamber, the The second communication port includes a second liquid inlet for cooling liquid to enter the second cooling chamber; the shunt pipe includes a first shunt pipe and a second shunt pipe, the first shunt pipe is connected to the first liquid inlet; the second shunt pipe is connected to the second liquid inlet; the first liquid inlet includes a first liquid inlet hole and a second liquid inlet hole, the first shunt pipe includes a first shunt branch pipe and a second shunt branch pipe, the first liquid inlet hole is connected to the first shunt branch pipe, and the second liquid inlet hole is connected to the second shunt branch pipe; the first communication port also has a first liquid outlet for cooling liquid to flow back to the liquid storage chamber, and the second communication port also has a second liquid outlet for cooling liquid to flow back to the liquid storage chamber; The first cooling chamber includes a first accommodating chamber for accommodating the first bearing, and a second accommodating chamber for accommodating the second bearing; the second accommodating chamber is arranged corresponding to the second liquid inlet hole; the second accommodating chamber is arranged directly below the second liquid inlet hole; the first cooling chamber also includes an oil guide sleeve for guiding the coolant from the first liquid inlet to the first accommodating chamber and the second accommodating chamber; the oil guide sleeve is arranged corresponding to the first liquid inlet hole, the oil guide sleeve is arranged directly below the first liquid inlet hole, and the oil guide sleeve includes an inner sleeve arranged on the main shaft and abutting between the inner rings of the first bearing and the second bearing A limit sleeve, and an outer limit sleeve which is sleeved outside the inner limit sleeve and abuts against the outer rings of the first bearing and the second bearing, a liquid conducting gap is provided between the inner limit sleeve and the outer limit sleeve, a liquid conducting hole is formed on the outer limit sleeve which is connected with the gap, the bearing clearances of the first bearing and the second bearing are both connected with the liquid conducting gap, the bearing clearances of the first bearing and the second bearing are both corresponding to the liquid conducting gap, an annular liquid storage groove which is connected with the liquid conducting hole is formed on the circumferential surface of the outer limit sleeve, and the annular liquid storage groove is connected with the first liquid inlet hole.

2. The cutting machine with high efficiency heat dissipation according to claim 1, characterized in that: The diversion pipeline is equipped with a valve that matches the flow rate of the coolant according to the heat generation of the heating part.

3. The high-efficiency heat dissipation cutting machine according to claim 2, characterized in that: The valve is arranged in the main shaft box.

4. The cutting machine with high efficiency heat dissipation according to claim 3, characterized in that: The diverter pipeline also includes a diverter valve, and the valve is arranged in the diverter valve.

5. The cutting machine with high efficiency heat dissipation according to claim 4, characterized in that: The diverter valve is installed on the inner side wall of the main shaft box.

6. The cutting machine with high efficiency heat dissipation according to any one of claims 1 to 5, characterized in that: The pump is arranged in the spindle box.

7. The cutting machine with high efficiency heat dissipation according to claim 6, characterized in that: The power device includes an electric motor.

8. The cutting machine with high efficiency heat dissipation according to claim 7, characterized in that: The power input end of the pump is drivingly connected to the power output end of the motor.

9. The cutting machine with high efficiency heat dissipation according to claim 8, characterized in that: The power device also includes a transmission device connected between the power output end of the motor and the main shaft.

10. The cutting machine with high efficiency heat dissipation according to claim 9, characterized in that: The transmission device comprises a first transmission output end transmission-connected to the main shaft, and a second transmission output end transmission-connected to the power input end of the pump.

11. The cutting machine with high efficiency heat dissipation according to claim 10, characterized in that: The pump has a power input shaft drivingly connected to the second transmission output end.

12. The cutting machine with high efficiency heat dissipation according to claim 11, characterized in that: The transmission device comprises a power output shaft drivingly connected to the power input shaft.

13. The cutting machine with high efficiency heat dissipation according to claim 12, characterized in that: The power input shaft and the power output shaft are connected together via a transmission connecting rod.

14. The cutting machine with high efficiency heat dissipation according to claim 13, characterized in that: The power input shaft and the transmission connecting rod are connected together through a coupling.

15. The cutting machine with high efficiency heat dissipation according to claim 14, characterized in that: The power output shaft and the transmission connecting rod are connected together through a flange.

16. The cutting machine with high efficiency heat dissipation according to claim 14, characterized in that: The power input shaft and the coupling are connected via a flat key.

17. The cutting machine with high efficiency heat dissipation according to claim 15, characterized in that: The coupling and the transmission connecting rod are connected via a flat key.

18. The cutting machine with high efficiency heat dissipation according to claim 17, characterized in that: The flange and the transmission connecting rod are connected via a flat key.

19. The cutting machine with high efficiency heat dissipation according to claim 14, characterized in that: The transmission device also includes a first transmission component connected between the motor and the power output shaft, and a second transmission component connected between the power output shaft and the main shaft.

20. The cutting machine with high efficiency heat dissipation according to claim 19, characterized in that: The first transmission component includes a first gear disposed on the output shaft of the motor, and a second gear disposed on the power output shaft and matched with the first gear.

21. The cutting machine with high efficiency heat dissipation according to claim 20, characterized in that: The second transmission component includes a third gear disposed on the main shaft, and external teeth formed on the circumferential surface of the power output shaft and matched with the third gear.

22. The cutting machine with high efficiency heat dissipation according to claim 6, characterized in that: The liquid inlet end of the pump is provided with a liquid extraction pipe for extracting cooling liquid.

23. The cutting machine with high efficiency heat dissipation according to claim 22, characterized in that: The liquid inlet end of the liquid extraction tube is located in the spindle box.

24. The cutting machine with high efficiency heat dissipation according to claim 23, characterized in that: The liquid inlet end of the liquid extraction pipe is inserted into the coolant of the spindle box.

25. The cutting machine with high efficiency heat dissipation according to claim 6, characterized in that: The heat dissipation device also includes a filtering device for filtering the coolant.

26. The cutting machine with high efficiency heat dissipation according to claim 25, characterized in that: The liquid inlet end of the filter device is connected to the liquid outlet end of the pump.

27. The cutting machine with high efficiency heat dissipation according to claim 26, characterized in that: The liquid inlet end of the filter device and the liquid outlet end of the pump are connected together through a first pipeline.

28. The cutting machine with high efficiency heat dissipation according to claim 27, characterized in that: The filtering device is connected to the outside of the main shaft box.

29. The cutting machine with high efficiency heat dissipation according to claim 28, characterized in that: The first pipe penetrates through the side wall of the spindle box.

30. The cutting machine with high efficiency heat dissipation according to claim 29, characterized in that: The first pipe is sealed and connected to the side wall of the main spindle box.

31. The cutting machine with high efficiency heat dissipation according to claim 25, characterized in that: Also included is a cooling device for cooling the coolant.

32. The cutting machine with high efficiency heat dissipation according to claim 31, characterized in that: The cooling device is connected between the liquid outlet of the filtering device and the diverter valve.

33. The cutting machine with high efficiency heat dissipation according to claim 32, characterized in that: The liquid inlet end of the cooling device and the liquid outlet end of the filtering device are connected together through a second pipeline.

34. The cutting machine with high efficiency heat dissipation according to claim 33, characterized in that: The liquid outlet end of the cooling device and the liquid inlet end of the diverter valve are connected together through a third pipeline.

35. The cutting machine with high efficiency heat dissipation according to claim 34, characterized in that: The cooling device is connected to the outer side of the spindle box.

36. The cutting machine with high efficiency heat dissipation according to claim 35, characterized in that: The third pipe passes through the side wall of the spindle box.

37. The cutting machine with high efficiency heat dissipation according to claim 36, characterized in that: The third pipe is sealed and connected to the side wall of the main spindle box.

38. The cutting machine with high efficiency heat dissipation according to claim 1, characterized in that: The spindle box is also provided with a transition cavity connected between the liquid storage cavity and the first cooling cavity.

39. The cutting machine with high efficiency heat dissipation according to claim 38, characterized in that: The side wall of the transition cavity is provided with a clamping hole communicating with the liquid storage cavity, and the clamping hole fixes the first branch pipe and the second branch pipe.

40. The cutting machine with high efficiency heat dissipation according to claim 39, characterized in that: The second accommodating cavity is arranged corresponding to the second liquid inlet hole.

41. The cutting machine with high efficiency heat dissipation according to claim 40, characterized in that: The second accommodating chamber is arranged directly below the second liquid inlet hole.

42. The cutting machine with high efficiency heat dissipation according to claim 41, characterized in that: The annular liquid storage groove corresponds to the first liquid inlet hole.

43. The cutting machine with high efficiency heat dissipation according to claim 42, characterized in that: The annular liquid storage tank is arranged directly below the first liquid inlet hole.

44. The cutting machine with high efficiency heat dissipation according to claim 41, characterized in that: The first cooling chamber is provided with a bearing fixing member at the first liquid outlet.

45. The cutting machine with high efficiency heat dissipation according to claim 44, characterized in that: The bearing fixing piece is sleeved on the main shaft, and the end surface of the bearing fixing piece abuts against the end surface of the inner ring of the second bearing.

46. ​​The cutting machine with high efficiency heat dissipation according to claim 45, characterized in that: A liquid outlet gap is provided between the outer circumferential surface of the bearing fixing member and the inner side wall of the first liquid outlet.

47. The cutting machine with high efficiency heat dissipation according to claim 46, characterized in that: The invention also includes a first bearing and a second bearing accommodated in the first cooling cavity.

48. The cutting machine with high efficiency heat dissipation according to claim 37, characterized in that: The second cooling cavity includes a third accommodating cavity for accommodating a third bearing.

49. The cutting machine with high efficiency heat dissipation according to claim 48, characterized in that: The third accommodating cavity has a mounting groove for accommodating the third bearing.

50. The cutting machine with high efficiency heat dissipation according to claim 49, characterized in that: The second cooling chamber further includes a fourth accommodating chamber for accommodating the second gear and a fifth accommodating chamber for accommodating the third gear.

51. The cutting machine with high efficiency heat dissipation according to claim 50, characterized in that: The third accommodating chamber is communicated with the fourth accommodating chamber and the fifth accommodating chamber, and the third accommodating chamber is located between the fourth accommodating chamber and the fifth accommodating chamber.

52. The cutting machine with high efficiency heat dissipation according to claim 51, characterized in that: Also included is a third bearing accommodated in the second cooling cavity.

53. The cutting machine with high efficiency heat dissipation according to claim 38, characterized in that: The liquid storage cavity is provided with a liquid storage portion for storing cooling liquid and a gas containing portion for containing gas.

Images