Temperature control system and method of wire roller bearing for stone wire cutting device

Abstract

The invention relates to the technical field of stone cutting, and provides a temperature control system and method of a wire roller bearing for a stone wire cutting device. Cooled lubricating oil output by an oil cooler continuously flows into a bearing cavity to take away heat generated by high-speed rotation of the bearing, so that the temperature of each part in the bearing cavity reaches a preset balance value; the oil temperature of each bearing is controlled in a relatively consistent range while lubrication is provided for the bearing, and the pipe diameter of the oil pipe is correspondingly designed according to the oil path distance between the bearing and the oil inlet and distribution block, so that the consistency of the oil lubrication pressure of the bearing at different distances is ensured, the pressure loss is reduced, the cooling effect of the bearing is improved, and the service life of the bearing is prolonged. And therefore, stable operation of the bearing is guaranteed, the problems of cutting gap enlargement and wire breakage caused by skewness and bounce enlargement are avoided, and the stone wire cutting precision can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of stone cutting, and in particular to a temperature control system and method for a wire roller bearing used in a stone wire cutting device. Background Art

[0002] In the process of natural stone processing, a relatively important step is the cutting of rough stones. Traditional stone cutting generally uses saw blades, rope saws, band saws and other materials with alloy blades for processing. Traditional cutting has several disadvantages, such as large cutting kerf, waste of stone, large vibration during cutting, easy board pulling, etc. Since the structural characteristics of these saw blades require the cemented carbide to have a certain thickness, the traditional tools will form saw kerfs ranging from 3-10mm in the process of cutting stone; in addition, during the processing, the cemented carbide tool is in rigid contact with the stone. The stone is peeled off by pulling with external force, which will produce large vibrations and easily cause the stone to break during processing. Generally, only rough boards with a thickness of more than 10mm can be cut.

[0003] A new type of diamond wire saw is quite popular in the current industry. The whole machine is equipped with a cutting device, a lifting device, a water spraying device, etc. The cutting device has winding, tensioning, and arranging devices, which work together to drive the diamond wire to form a wire network and move at high speed while cooperating with the lifting device to complete the cutting of stone rough materials. Due to the characteristics of the diamond wire itself, the new type of diamond wire saw has flexible contact with the stone, no instantaneous impact load, basically no vibration and low noise, small wire diameter (generally no more than 1mm), and the cutting saw seam is less than 1mm, which can greatly improve the material yield, and there is no impact, which will not cause the stone to break during the cutting process.

[0004] The diamond wire saw uses a high-speed moving diamond wire net arranged horizontally on the cutting device to contact the rough material in the vertical direction under the action of the lifting device, so that the diamond wire forms an angle with the horizontal direction. The continuous movement of the lifting device generates vertical pressure on the rough material. At the same time, the diamond wire moves along the direction of the wire net layout to generate friction between the diamond wire and the rough material. The rough material is cut during the high-speed movement of the diamond wire. The speed of the diamond wire movement directly affects the efficiency and quality of the rough material cutting. Since the diameter of the diamond wire is relatively thin, a higher speed is required to achieve the cutting of the rough material. This requires that the speed of the roller driving the diamond wire is relatively high, and frequent reversing is required to save the amount of diamond wire. Long-term high-speed rotation of the roller and frequent reversing will cause the bearings at both ends used to support the roller to heat up rapidly, resulting in a corresponding increase in the temperature of adjacent components.

[0005] The existing wire saw roller bearing cooling method is mostly an integrated bearing box, with bearings installed inside and a certain amount of lubricant such as lubricating oil or grease filled in. The bearings and other parts are sealed in the bearing box by means of a gland and a seal. A number of axial circular holes are arranged in the inner hole of the bearing box that cooperates with the bearing and the outer circle middle ring structure that cooperates with the mounting component. Glands are arranged at the two end faces of the bearing box. The end faces of the gland have grooves that are connected to each other corresponding to the holes of the bearing line, so that the holes in the entire bearing box are connected to form a group of heat dissipation pipes, and a hole connected to the outside world is left at each of the two end covers at both ends to facilitate the flow / out of the medium (such as water or oil, etc.) for cooling the bearing box. This cooling method requires the heat generated by the high-speed operation of the bearing to be transferred through the heat conduction of the bearing box, which has the problem of low efficiency and cannot cool the bearing in time, which is easy to cause cutting jitter and affect the cutting quality. Summary of the invention

[0006] The purpose of the present invention is to provide a temperature control system and method for a wire roller bearing for a stone wire cutting device, so as to solve the problem that the heat dissipation efficiency of the wire saw roller bearing of the existing stone wire cutting device is low, thus affecting the cutting stability and quality.

[0007] In a first aspect, an embodiment of the present invention provides a temperature control system for a wire roller bearing for a stone wire cutting device, comprising: The bearing oil cooling control assembly is used to cool and lubricate the wire roller bearings of the bearing assembly of the roller and the winding assembly; the bearing oil cooling control assembly comprises: an oil cooler, an oil inlet oil separator, an oil return oil separator, a plurality of oil inlet pipes and a plurality of oil return pipes; The oil inlet and oil separation block comprises an oil inlet collecting port and a plurality of oil inlet and oil separation ports, and the oil inlet and oil separation ports are respectively connected to the oil inlet pipes in a one-to-one correspondence; the oil inlet collecting port is connected to the oil outlet of the oil cooler, and the oil inlet pipes are respectively connected to the bearing cavity inlets of the corresponding bearing assemblies, and the diameter of the oil inlet pipes is proportional to the length of the oil path from the oil inlet and oil separation block to the bearing cavity; The return oil separation block includes a return oil collecting port and a plurality of return oil separation ports, the return oil separation ports are respectively connected to the return oil pipes one by one, the return oil collecting port is connected to the return oil port of the oil cooler, and the return oil pipes are respectively connected to the bearing cavity outlets of the bearing assemblies.

[0008] Optionally, the temperature control system of the wire roller bearing for the stone wire cutting device further includes: A temperature sensor is used to detect the oil temperature in the bearing cavity. A throttle valve is provided on each of the oil inlet pipes. A control unit, wherein the control unit is connected to the temperature sensor and the throttle valve respectively, and is used to adjust the flow rate of the throttle valve according to the oil temperature so that the oil temperature in each bearing cavity is within a preset temperature range.

[0009] Optionally, the oil inlet and oil collecting port is located at one end of the oil inlet and oil separating block, the oil inlet and oil separating ports are arranged side by side, and the inner diameter of the oil inlet and oil separating ports is proportional to the distance from the oil inlet and oil collecting port.

[0010] Optionally, the inner diameters of the plurality of oil return pipes are the same and are all larger than the inner diameter of the oil inlet pipe.

[0011] Optionally, the return oil collecting port is located at one end of the return oil separating block, and a plurality of the return oil separating ports are arranged side by side in sequence along the length direction of the return oil separating block, and the inner diameter of the return oil separating port is proportional to the distance from the return oil separating port to the return oil collecting port.

[0012] Optionally, a first oil inlet passage for connecting to the oil inlet pipeline is provided in the bearing assembly corresponding to the roller; wherein the bearing assembly comprises the bearing seat and the line roller bearing, the line roller bearing is located in the bearing cavity of the bearing seat, and the first oil inlet passage is located in the bearing seat; The first oil inlet channel is arranged in a horizontal direction; or, the height of the first oil inlet channel close to one end of the oil inlet pipe is greater than the height of the first oil inlet channel away from one end of the oil inlet pipe.

[0013] Optionally, the angle between the center line of the first oil inlet channel and the horizontal direction is 0-5°.

[0014] Optionally, a second oil inlet channel is also provided in the bearing assembly corresponding to the roller. The second oil inlet channel is arranged in a vertical direction and is located between the first oil inlet channel and the bearing cavity. The connection intersection between the upper end of the second oil inlet channel and the end of the first oil inlet channel adopts an arc transition design, and the lower end of the second oil inlet channel is connected to the bearing cavity.

[0015] Optionally, a third oil inlet channel is arranged in the wire roller bearing corresponding to the winding assembly, and the third oil inlet channel is arranged in a vertical direction. One end of the third oil inlet channel is connected to the oil inlet pipe, and the other end is connected to the bearing cavity inlet of the bearing assembly corresponding to the winding assembly.

[0016] Optionally, the ratio of the oil flow rates corresponding to the bearing assembly of the roller away from the oil inlet and oil separator block, the bearing assembly of the roller close to the oil inlet and oil separator block, and the bearing assembly of the winding assembly are (2~1.5):(1.5~1):1.

[0017] Optionally, the inner wall of the bearing cavity is coated with an oleophobic film layer or a micron-scale protrusion structure is provided on the side wall of the bearing cavity.

[0018] In a second aspect, the present invention further provides a temperature control method for a wire roller bearing for a stone wire cutting device, based on the temperature control system as described in the first aspect, comprising: S100, controlling the oil cooler to start after being powered on, so that the lubricating oil flows out from the oil outlet of the oil cooler and flows into the bearing cavities of the corresponding line roller bearings for lubrication after being divided by the oil inlet dividing block; S200, controlling the temperature sensor to detect the oil temperature in the bearing cavity in real time; S300, adjusting the opening of the throttle valve according to the oil temperature to control the oil flow rate, so that the oil temperature in each bearing cavity is within a preset temperature range.

[0019] The present invention has at least the following technical effects: The temperature control system and method of the wire roller bearing for the stone wire cutting device provided by the present invention continuously flows the cooled lubricating oil output by the oil cooler into the bearing cavity, takes away the heat generated by the high-speed rotation of the bearing, and makes the temperature of each part in the bearing cavity reach a preset equilibrium value, while providing lubrication for the bearing, ensuring that the oil temperature of each bearing is controlled within a relatively consistent range, and the diameter of the oil pipe is designed accordingly according to the oil path distance between the bearing and the oil distributor block, so as to ensure the consistency of the lubrication pressure of the bearing oil at different distances, reduce the pressure loss, thereby improving the cooling effect of the bearing, and further ensuring the smooth operation of the bearing, avoiding the problems of bearing deviation, larger runout, larger cutting gap and even wire breakage, and ensuring the stability and quality of stone wire cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the arrangement of a temperature control system for a stone wire cutting device provided by an embodiment of the present invention; Figure 2 The embodiment of the present invention provides Figure 1 Side view of Figure 3 A schematic structural diagram of a bearing oil cooling control assembly of a temperature control system for a wire roller bearing for a stone wire cutting device provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of an oil inlet and oil separation block of a temperature control system for a wire roller bearing for a stone wire cutting device provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of an oil return and oil separation block of a temperature control system of a wire roller bearing for a stone wire cutting device provided by an embodiment of the present invention; Figure 6 A schematic diagram of the connection of the lubricating oil circuit of the roller bearing cavity of a temperature control system of a wire roller bearing for a stone wire cutting device provided by an embodiment of the present invention; Figure 7 A schematic diagram of the connection of the lubricating oil circuit of the wire roller bearing oil of the winding assembly of a stone wire cutting device provided by an embodiment of the present invention; Figure 8 A flow chart of a temperature control method for a wire roller bearing for a stone wire cutting device provided in an embodiment of the present invention.

[0022] Reference numerals: 1-Oil cooler; 101-Oil outlet; 102-Oil return port; 2-Oil return hose; 3-Oil return oil separator; 301-Oil return oil separator; 302-Oil return oil collecting port; 4-Oil return pipe; 411-First oil inlet channel; 412-Second oil inlet channel; 413-Third oil inlet channel; 5-Right angle joint; 6-Straight joint; 7-Throttle valve; 8-Oil inlet pipe; 9-Oil inlet separator; 901-Oil inlet separator; 902-Oil inlet collecting port; 10-Oil inlet hose; 11-Control unit; 12-Axis head; 13-Bearing seat; 14-Gland; 15-Diamond wire; 100-Cutting part; 200-Lifting part; 300-Winding assembly; 400-Wire roller bearing; 410-Bearing cavity; 500-Roller; 600-Bearing oil cooling control assembly. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0025] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0026] The inventors found that in the process of cutting stone with a diamond wire saw, the existing method of cooling the wire roller bearing box through a cooling medium (such as water or oil, etc.) cannot cool the bearing in a timely and effective manner, which will cause the bearing temperature to be too high. The lubricating fluid inside the bearing will be reduced or deteriorated and fail due to heat evaporation, affecting the running stability of the wire roller bearing, and easily causing cutting jitter and affecting the cutting quality; sometimes, the heat will accumulate for a long time and cannot be dissipated, eventually causing the bearing to lock and be damaged due to lack of lubrication, thereby causing equipment failures, such as diamond wire breakage, scrapped waste materials, etc.

[0027] To overcome the above-mentioned problems, the present invention adopts a method of circulating lubricating oil to cool the wire roller bearings. Although the lubricating oil cooling method is adopted, the inventors found that some wire roller bearings still often have large vibrations. Analysis shows that these vibrations occur in bearings that are far away from the oil cooler. In order to increase the cooling effect, it is necessary to increase the oil cooling flow rate and increase the oil pressure. However, the oil pressure of the circulating lubricating oil cannot be too high, otherwise it is easy to cause seal failure and oil leakage. Under the same pipe diameter, bearings that are far away from the oil cooler will have oil pressure loss due to the long oil circuit, resulting in poor cooling effect of some bearings. Inconsistent bearing cooling effect will easily affect the smooth operation of each bearing, and deflection and larger vibration will occur between the bearings, thereby causing problems such as larger cutting gaps and even wire breakage.

[0028] The technical solution of the present invention and how the technical solution of the present invention solves the above-mentioned technical problems are described in detail below with specific embodiments.

[0029] Combination Figure 1 and Figure 2As shown, the main structure of the stone wire cutting system is first introduced. The stone wire cutting system mainly includes a cutting part 100, a lifting part 200 and a winding part. Among them, the lifting part 200 is connected to the ground foundation, serving as the reference of the entire stone wire cutting system and the installation platform of each module. At the same time, the lifting part 200 drives the lifting platform to lift the stone block in the vertical direction through the combination of the lead screw, the flat guide rail and the V-shaped guide rail, thereby realizing the rise and fall of the stone block. The cutting part 100 and the lifting part 200 are connected to each other. The cutting part 100 is provided with a roller 500 for driving the diamond wire 15 to move at high speed. The cutting part 100 is provided with winding parts on both sides of the direction where the stone block enters the lifting part 200. The winding parts on both sides cooperate with each other to realize the reciprocating motion of the diamond wire 15, thereby completing the cutting of the stone block. The diamond wire 15 is wound on the winding assembly 300 in the winding part on one side, and then spirally wound on the four rollers 500 provided in the cutting part 100, and then penetrated from the outlet assembly of the winding part on the other side in the width direction of the stone block, and wound on the winding assembly 300 to complete the layout of the cutting wire net. During the cutting operation, the winding assembly 300 on one winding part is used as a wire pay-off roller, and the winding assembly 300 on the other winding part is used as a wire take-up roller. The two sets of tension assemblies, wire arrangement assemblies and wiring assemblies in the middle and the four rollers 500 cooperate with each other to tension the diamond wire 15 to form a diamond wire net.

[0030] In order to solve the problems that the wire roller bearing is prone to high temperature during the stone wire cutting process and the temperature of each bearing is inconsistent, which causes the bearing to run unsteadily, resulting in the enlargement of the cutting gap or even wire breakage, etc., the embodiment of the present invention provides a temperature control system for the wire roller bearing 400 for the stone wire cutting device, combined with Figures 1 to 7 As shown, the temperature control system includes: a bearing oil cooling control component 600 and a control unit 11, and the control unit 11 is used to control the bearing oil cooling control component 600 to perform corresponding actions, so as to avoid the problem of too long cooling oil circuit and low cooling efficiency.

[0031] Optionally, in order to avoid the influence of too long pipeline on cooling oil pressure, the embodiment of the present invention adopts two sets of bearing oil cooling control components 600 to respectively control the rollers 500 on both sides of the cutting part 100 and the wire roller bearings 400 in the bearing components of the winding roller assembly, that is, each set of bearing oil cooling control components 600 corresponds to the two rollers 500 and the winding assembly 300 on one side of the stone wire cutting device. Among them, the bearing assembly includes a bearing seat 13, and a bearing cavity 410 is provided in the bearing seat 13. The wire roller bearing 400 is installed in the bearing seat 13. The heat generated by the rotation of the wire roller bearing 400 is taken away by oil circulation in the bearing cavity 410, and lubrication is provided for the wire roller bearing 400.

[0032] The cooling process of the bearing by the bearing oil cooling control assembly 600 is described in detail below: Specifically, the bearing oil cooling control assembly 600 includes: an oil cooler 1, an oil inlet separator block 9, an oil return separator block 3, multiple oil inlet pipes 8 and multiple oil return pipes 4. Considering that each side of the stone wire cutting device includes two rollers 500 and a winding assembly 300, that is, each side is equivalent to six wire roller bearings 400, in order to ensure that the oil inlet pipe 8 and the oil return pipe 4 of each wire roller bearing 400 form an oil circuit independently, each group of the bearing oil cooling control assembly 600 includes six oil inlet pipes 8 and six oil return pipes 4.

[0033] The oil inlet and oil separator block 9 is provided with an oil inlet collecting port 902 and six oil inlet and oil separator ports 901 (i.e., the oil flowing into one oil inlet and oil separator port 902 flows out from the six oil inlet and oil separator ports 901 respectively), and the six oil inlet and oil separator ports 901 are respectively connected to the six oil inlet pipes 8; the oil return and oil separator block 3 is provided with an oil return collecting port 302 and six oil return and oil separator ports 301 (i.e., the oil flowing into one oil return and oil separator port 302 flows out from the six oil return and oil separator ports 301 respectively), and the six oil return and oil separator ports 301 are respectively connected to the six oil return pipes 4; the oil inlet and oil separator port 902 of the oil inlet and oil separator block 9 can be connected to the oil outlet 101 of the oil cooler 1 through the oil inlet hose 10, and the oil return collecting port 302 of the oil return and oil separator block 3 can be connected to the oil return port 102 of the oil cooler 1 through the oil return hose 2.

[0034] Furthermore, the six oil inlet pipes 8 are respectively connected to the bearing cavity inlets corresponding to the six line roller bearings 400 through the straight-through joints 6, and the six oil return pipes 4 are respectively connected to the bearing cavity 410 outlets corresponding to the six line roller bearings 400 through the right-angle joints 5, and the six oil return pipes 4 correspond to the six oil inlet pipes 8 one by one, thereby forming six oil circulation loops for different line roller bearings 400. The diameters of the six oil inlet pipes 8 (the diameter refers to the inner diameter of the oil inlet pipe 8) are proportional to the length of the oil path from the oil inlet distributor block 9 to the bearing cavity 410, that is, the longer the oil path from the oil inlet distributor block 9 to the bearing cavity 410, the thicker the inner diameter of the corresponding oil inlet pipe 8, and the shorter the oil path from the oil inlet distributor block 9 to the bearing cavity 410, the thinner the inner diameter of the corresponding oil inlet pipe 8. In this way, the diameters of different oil inlet pipes are designed specifically according to the distance from the corresponding line roller bearing 400 to the oil inlet distributor block 9, so as to ensure that the oil pressure in the bearing cavity at different distances is basically the same, which is conducive to ensuring the consistency of the cooling effect of each line roller bearing, so as to improve the running stability of the line roller bearing 400. It should be noted that the oil path length described in this embodiment refers to the length of the oil inlet pipe 8 corresponding to the corresponding bearing cavity 410. It should be noted that the proportionality mentioned in the embodiment of the present invention can be a linear relationship or a nonlinear relationship, which is not specifically limited here.

[0035] Optionally, the inner diameters of the multiple oil return pipes 4 are the same, and the inner diameters of the oil return pipes 4 are all larger than the inner diameter of the oil inlet pipe 8, which is conducive to rapid reflux, and multiple identical oil return pipes 4 can be purchased in batches to save costs.

[0036] In some embodiments, a temperature sensor (not shown in the figure) is also correspondingly arranged in the bearing cavity 410. The temperature sensor is used to detect the oil temperature in the bearing cavity 410. The temperature sensor can be arranged at the outlet of the bearing cavity to facilitate the detection of the oil temperature. Throttle valves 7 are respectively arranged on the oil inlet pipe 8. The control unit 11 is respectively connected to the temperature sensor and the throttle valve 7 to adjust the flow of the throttle valve 7 according to the oil temperature, so that the oil temperature in each bearing cavity 410 is maintained within a preset temperature range, thereby reducing the difference in oil temperature in different bearing cavities 410, thereby reducing the bearing fluctuation caused by the difference in oil temperature, and further improving the running stability of the bearing.

[0037] During the specific cutting operation, the oil cooler 1 starts immediately after receiving power, and the lubricating oil at room temperature is pumped out from the oil outlet 101 and injected into the bearing cavity 410 composed of the shaft head 12, the bearing seat 13 and the pressure cover 14 through the oil inlet pipe 8. Under the action of gravity and the rotation of the bearing, it flows to the bottom of the cavity. When the lubricating oil level is higher than the return oil pipe 4, it overflows from the right-angle joint 5 and flows back to the oil cooler 1 through the return oil pipe 4. At the same time, the oil inlet pipe 8 continuously provides the oil cooled by the oil cooler 1, forming a circulation loop with the bearing cavity 410, the return oil pipe 4 and the oil cooler 1, taking away the heat generated by the high-speed rotation of the bearing. As time goes by, the temperature of the bearing cavity 410 will reach a balance, and the temperature sensor will feedback the temperature in the bearing cavity 410 in real time. When the equilibrium temperature is higher than the preset value, the control system will issue an instruction to adjust the flow of the throttle valve 7 to increase the circulating oil supply flow until the equilibrium temperature returns to the preset value, and the oil cooler 1 maintains the oil supply flow.

[0038] It can be understood that since the positions of the oil cooler 1 and the oil separator block are fixed, the oil path lengths of the bearing cavities 410 connecting the two ends of the roller 500 are different. In order to ensure that the amount of lubricating oil flowing into each bearing cavity 410 is equivalent, a throttle valve 7 is arranged between the oil separator block and the bearing seat 13 on the oil inlet pipe 8 to adjust the oil inlet amount in the bearing cavity 410. At the same time, in order to ensure that there is sufficient lubricating oil cooling and lubrication in the bearing cavity 410 farthest from the oil cooler 1, a differentiated design is adopted, and a larger diameter oil pipeline is used for this oil circuit. By increasing the oil volume in this circuit, the oil pressure loss caused by the excessive length of the oil circuit is compensated, thereby ensuring that the oil pressure and oil volume of each pipeline are balanced.

[0039] The temperature control system of the wire roller bearing for the stone wire cutting device provided in the embodiment of the present invention continuously flows into the bearing cavity through the oil cooler output cooled lubricating oil, takes away the heat generated by the high-speed rotation of the bearing, and makes the temperature of each part in the bearing cavity reach a preset equilibrium value, while providing lubrication for the bearing, ensuring that the oil temperature of each bearing is controlled within a relatively consistent range, and the diameter of the oil pipe is designed accordingly according to the oil path distance between the bearing and the oil inlet distributor block to ensure the consistency of the lubrication pressure of the bearing oil at different distances, reduce pressure loss, thereby improving the cooling effect of the bearing, and further ensuring the smooth operation of the bearing, avoiding the problem of larger cutting gap and wire breakage caused by larger deflection and jump, which is beneficial to improving the accuracy of stone wire cutting.

[0040] Optionally, the oil inlet collecting port 902 is located at one end of the oil inlet separating block 9, and the six oil inlet separating ports 901 are arranged side by side along the length direction of the oil inlet separating block 9, and the inner diameters of the six oil inlet separating ports 901 are proportional to the distance from the oil inlet separating port 901 to the oil inlet collecting port 902, that is, the closer the oil inlet separating port 901 is to the oil inlet collecting port 902, the smaller the inner diameter of the oil inlet separating port 901 is, and the farther the oil inlet separating port 901 is from the oil inlet collecting port 902, the larger the inner diameter of the oil inlet separating port 901 is, thereby ensuring that the oil pressure flowing out of each oil inlet separating port 901 is basically the same, thereby minimizing the influence of the oil inlet separating block itself on the lubricating oil pressure.

[0041] Optionally, the return oil collecting port 302 is located at one end of the return oil dividing block 3, and the six return oil dividing ports 301 are arranged side by side along the length direction of the return oil dividing block 3, and the inner diameters of the six return oil dividing ports 301 are proportional to the distances from the return oil dividing ports 301 to the return oil collecting port 302, that is, the closer the return oil dividing port 301 is to the return oil collecting port 302, the smaller the inner diameter of the return oil dividing port 301 is, and the farther the return oil dividing port 301 is from the return oil collecting port 302, the larger the inner diameter of the return oil dividing port 301 is, thereby ensuring that the oil pressure flowing in from each return oil dividing port 301 is basically the same.

[0042] In this embodiment, the inner diameter of each oil distribution port is specially designed according to the distance between the oil distribution port and the corresponding oil collecting port, so that the inner diameter of the oil distribution port farther away from the oil collecting port is larger, while the inner diameter of the oil distribution port closer to the oil collecting port is smaller. The six oil distribution ports of the same oil distribution block change gradually, which is beneficial to accelerate the flow of oil circuits to enhance the cooling effect of the bearing.

[0043] In some embodiments, Figure 6 As shown, a first oil inlet channel 411 is provided in the bearing seat 13 of the bearing assembly corresponding to the roller 500 . The first oil inlet channel 411 is arranged in a horizontal direction, and the oil inlet pipe 8 is connected to the first oil inlet channel 411 through a straight-through joint 6 .

[0044] Optionally, the height of the first oil inlet channel 411 close to the end of the oil inlet pipe 8 is greater than the height of the first oil inlet channel 411 away from the end of the oil inlet pipe 8, that is, the first oil inlet channel 411 is inclined inwardly.

[0045] Optionally, the included angle between the center line of the first oil inlet channel 411 and the horizontal direction is 0-5°, so that the oil can enter the bearing cavity 410 more smoothly under the condition of lower oil pressure. It can be understood that when the included angle between the center line of the first oil inlet channel 411 and the horizontal direction is 0°, it means that the first oil inlet channel 411 is arranged in the horizontal direction.

[0046] Optionally, a second oil inlet channel 412 is further provided in the bearing seat 13 of the bearing assembly corresponding to the roller 500. The second oil inlet channel 412 is arranged in the vertical direction. The upper end of the second oil inlet channel 412 is connected to the end of the first oil inlet channel 411 away from the oil inlet pipe 8, and the intersection of the two is designed with an arc transition. The lower end of the second oil inlet channel 412 is connected to the inlet of the bearing cavity, which is conducive to the flow of oil and further reduces the oil pressure loss.

[0047] Alternatively, if Figure 7 As shown, a third oil inlet channel 413 is arranged in the bearing seat 13 of the bearing assembly corresponding to the winding assembly 300. The third oil inlet channel 413 is arranged along the vertical direction. One end of the third oil inlet channel 413 is connected to the oil inlet pipe 8, and the other end of the third oil inlet channel 413 is connected to the bearing cavity entrance corresponding to the winding assembly 300, that is, the oil inlet direction of the winding assembly 300 is in the vertical direction, and vertical oil inlet is beneficial to reducing oil pressure loss.

[0048] Optionally, considering the actual structure and size of the stone wire cutting device, in this embodiment, the oil flow ratios corresponding to the bearing assembly of the roller 500 far away from the oil inlet and oil separator block 9, the bearing assembly of the roller 500 close to the oil inlet and oil separator block 9, and the bearing assembly of the winding assembly 300 are (2~1.5):(1.5~1):1. This setting can more accurately control the oil pressure of the wire roller bearing 400 at different positions, that is, the oil flow corresponding to the farthest roller is the largest, and the oil flow of the nearest winding assembly 300 is the smallest, so that the lubricating oil pressure corresponding to different bearing cavities is more balanced, and the corresponding oil temperature can also be more accurately controlled within a relatively consistent and reasonable range, which is beneficial to improve the cooling effect of the bearing and ensure the smooth operation of the bearing.

[0049] Optionally, the oil height in the bearing cavity 410 is described by the liquid level height of the oil relative to the bearing ball. The lowest position of the oil height exceeds the lowest point of the ball, but is not higher than the lowest position of the inner ring of the bearing, because too low oil height is not conducive to the rotation of the bearing, and too high oil height will hinder the rotation of the bearing.

[0050] Optionally, the inner wall of the bearing cavity 410 is coated with an oleophobic film layer, which can reduce the loss of oil and help improve the lubrication effect.

[0051] Optionally, a micrometer-scale protrusion structure is provided on the side wall of the bearing cavity 410, which is beneficial to the disturbance of the oil in the cavity, thereby further improving the cooling effect of the oil.

[0052] The second aspect, such as Figure 8 As shown, the present invention also provides a temperature control method for a wire roller bearing 400 for a stone wire cutting device, based on the temperature control system of the first aspect, and the contents of the temperature control system are not repeated here. The temperature control method for a wire roller bearing 400 for a stone wire cutting device comprises the following steps: S100, controlling the oil cooler 1 to start after being powered on, so that the lubricating oil flows out from the oil outlet 101 of the oil cooler 1 and flows into the bearing cavity 410 of the corresponding bearing assembly for lubrication after being divided by the oil inlet dividing block 9; S200, controlling the temperature sensor to detect the oil temperature in the bearing cavity 410 in real time; S300, adjusting the opening of the throttle valve 7 according to the oil temperature to control the oil flow rate, so that the oil temperature in each bearing cavity 410 is consistent.

[0053] It should be noted that the oil flow in different oil inlet pipes is controlled by the opening of the throttle valve 7. In order to ensure the consistency of the cooling effect in the bearing cavity of different bearing assemblies, for the bearing assembly far from the oil inlet and oil separation block 9, the corresponding oil flow needs to be larger, and the corresponding valve opening of the throttle valve 7 is larger, while for the bearing assembly close to the oil inlet and oil separation block 9, the corresponding oil flow needs to be smaller, and the corresponding valve opening of the throttle valve 7 is smaller. This is conducive to avoiding the problems of bearing deflection and larger runout due to differences in cooling effects, resulting in larger cutting gaps or even broken wires. In addition, the order of steps S100 and S200 is not specifically limited. Step S100 can be executed first and then S200, or step S200 can be executed first and then S100.

[0054] The temperature control method for the wire roller bearing of the stone wire cutting device provided in the embodiment of the present invention continuously flows the cooled lubricating oil output by the oil cooler into the bearing cavity, takes away the heat generated by the high-speed rotation of the bearing, and makes the temperature of each part in the bearing cavity reach a preset equilibrium value. While providing lubrication for the bearing, it ensures that the oil temperature of each bearing is controlled within a relatively consistent range, which is beneficial to improve the stability of the bearing operation and avoid affecting the cutting accuracy due to problems such as bearing jitter.

[0055] Those skilled in the art will appreciate that the various operations, methods, steps, measures, and schemes discussed in the present invention may be alternated, modified, combined, or deleted. Further, other steps, measures, and schemes in the various operations, methods, and schemes discussed in the present invention may also be alternated, modified, rearranged, decomposed, combined, or deleted. Further, the steps, measures, and schemes in the prior art that are similar to those disclosed in the present invention may also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0056] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0057] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

[0059] In the description of this specification, specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. It should be understood that although the steps in the flowchart of the accompanying drawings are displayed in sequence as indicated by the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless clearly stated herein, there is no strict order restriction on the execution of these steps, and they may be performed in other orders. Moreover, at least a portion of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but may be performed at different times, and their execution order is not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A temperature control system for a wire roller bearing for a stone wire cutting device, characterized in that: include: The bearing oil cooling control assembly is used to cool and lubricate the wire roller bearings of the bearing assembly of the roller and the winding assembly; the bearing oil cooling control assembly comprises: an oil cooler, an oil inlet oil separator, an oil return oil separator, a plurality of oil inlet pipes and a plurality of oil return pipes; The oil inlet and oil separation block comprises an oil inlet collecting port and a plurality of oil inlet and oil separation ports, and the oil inlet and oil separation ports are respectively connected to the oil inlet pipes in a one-to-one correspondence; the oil inlet collecting port is connected to the oil outlet of the oil cooler, and the oil inlet pipes are respectively connected to the bearing cavity inlets of the corresponding bearing assemblies, and the inner diameter of the oil inlet pipe is proportional to the length of the oil path from the oil inlet and oil separation block to the corresponding bearing cavity inlet; The return oil separation block includes a return oil collecting port and a plurality of return oil separation ports, the return oil separation ports are respectively connected to the return oil pipes one by one, the return oil collecting port is connected to the return oil port of the oil cooler, and the return oil pipes are respectively connected to the bearing cavity outlets of the bearing assemblies.

2. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 1 is characterized in that: Also includes: A temperature sensor is used to detect the oil temperature in the bearing cavity. A throttle valve is provided on each of the oil inlet pipes. A control unit, wherein the control unit is connected to the temperature sensor and the throttle valve respectively, and is used to adjust the flow rate of the throttle valve according to the oil temperature so that the oil temperature in each bearing cavity is within a preset temperature range.

3. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 2 is characterized in that: The oil inlet and oil collecting port is located at one end of the oil inlet and oil separating block, the oil inlet and oil separating ports are arranged side by side, and the inner diameter of the oil inlet and oil separating ports is proportional to the distance from the oil inlet and oil collecting port.

4. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 1, characterized in that: The inner diameters of the plurality of oil return pipes are the same and are all larger than the inner diameter of the oil inlet pipe.

5. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 4 is characterized in that: The return oil collecting port is located at one end of the return oil separating block, and a plurality of the return oil separating ports are arranged side by side in sequence along the length direction of the return oil separating block, and the inner diameter of the return oil separating port is proportional to the distance from the return oil separating port to the return oil collecting port.

6. The temperature control system of the wire roller bearing for the stone wire cutting device according to any one of claims 1 to 5, characterized in that: A first oil inlet passage for connecting to the oil inlet pipeline is provided in the bearing assembly corresponding to the roller; wherein the bearing assembly comprises: a bearing seat and the line roller bearing, the line roller bearing is located in the bearing cavity of the bearing seat, and the first oil inlet passage is located in the bearing seat; The first oil inlet channel is arranged in a horizontal direction; or, the height of the first oil inlet channel close to one end of the oil inlet pipe is greater than the height of the first oil inlet channel away from one end of the oil inlet pipe.

7. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 6, characterized in that: The angle between the center line of the first oil inlet channel and the horizontal direction is 0-5°.

8. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 6, characterized in that: A second oil inlet channel is also provided in the bearing assembly corresponding to the roller. The second oil inlet channel is arranged in a vertical direction. The connection intersection between the upper end of the second oil inlet channel and the end of the first oil inlet channel adopts an arc transition design, and the lower end of the second oil inlet channel is connected to the bearing cavity.

9. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 1, characterized in that: A third oil inlet channel is arranged in the bearing assembly corresponding to the winding assembly. The third oil inlet channel is arranged in a vertical direction. One end of the third oil inlet channel is connected to the oil inlet pipe, and the other end is connected to the bearing cavity inlet of the bearing assembly corresponding to the winding assembly.

10. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 2, characterized in that: The ratio of the oil flow rates corresponding to the bearing assembly of the roller far away from the oil inlet and oil separator block, the bearing assembly of the roller close to the oil inlet and oil separator block, and the bearing assembly of the winding assembly are (2~1.5):(1.5~1):

1.

11. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 1, characterized in that: The inner wall of the bearing cavity is coated with an oleophobic film layer or a micron-scale protrusion structure is provided on the side wall of the bearing cavity.

12. A temperature control method for a wire roller bearing for a stone wire cutting device, based on the temperature control system according to any one of claims 2 to 11, characterized in that: include: The oil cooler is controlled to start after being powered on, so that the lubricating oil flows out from the oil outlet of the oil cooler and flows into the bearing cavity of the corresponding bearing assembly for lubrication after being divided by the oil inlet dividing block; Control the temperature sensor to detect the oil temperature in the bearing cavity in real time; The opening of the throttle valve is adjusted according to the oil temperature to control the oil flow rate, so that the oil temperature in each bearing cavity is within a preset temperature range.

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