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

Abstract

The present invention relates to the technical field of stone cutting, and provides a temperature control system and method for a wire roller bearing of a stone wire cutting device. The lubricating oil cooled by an oil cooler continuously flows into the bearing cavity, taking away the heat generated by the high-speed rotation of the bearing, so that the temperature of each part in the bearing cavity reaches a preset equilibrium value. While providing lubrication for the bearing, the temperature of the oil in each bearing is controlled within a relatively consistent range. And the pipe diameter of the oil pipe is correspondingly designed according to the oil circuit distance between the bearing and the oil inlet and oil distribution block to ensure the consistency of the lubricating oil pressure of the bearings at different distances, reduce the pressure loss, thereby improving the cooling effect of the bearing, and further ensuring the stable operation of the bearing, avoiding problems such as increased skew and runout resulting in enlarged cutting gaps and broken wires, which is beneficial to improving the precision of stone wire cutting.

Description

Technical Field

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

[0002] In the process flow of natural stone processing, an important step is the cutting of rough blocks. Traditional stone cutting generally uses materials with alloy tool heads such as saw blades, wire saws, and band saws for processing. Traditional cutting has several disadvantages, such as large cutting saw seams, waste of stone materials, large vibrations during the cutting process, and easy pulling of the board. Due to the structural characteristics of these saw blades requiring a certain thickness of cemented carbide, traditional cutting tools will form saw seams ranging from 3 to 10 mm during the cutting of stone; in addition, during the processing, the cemented carbide cutting tool is in rigid contact with the stone, and the stone is peeled off by an external force pull, resulting in large vibrations and easily causing the stone to break during the processing. Generally, only slabs with a thickness of more than 10 mm can be cut.

[0003] A newly emerging diamond wire saw is 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 devices such as wire winding, tensioning, and wire arranging, which work together to drive the diamond wires to form a wire mesh and move at high speed, and at the same time cooperate with the lifting device to complete the cutting of the stone rough block. Due to the characteristics of the diamond wire itself, the newly emerging diamond wire saw has a flexible contact with the stone, no instantaneous impact load, basically no vibration and low noise. The wire diameter is small (generally not exceeding 1 mm), and the cutting saw seam is less than 1 mm, which can greatly improve the yield rate, and there is no impact, so the stone will not break during the cutting process.

[0004] The diamond wire saw contacts the rough block vertically under the action of the lifting device through the horizontally arranged high-speed moving diamond wire mesh on the cutting device, so that the diamond wire forms an angle with the horizontal direction. The continuous movement of the lifting device generates a vertical pressure on the rough block. At the same time, the movement of the diamond wire along the wire mesh layout direction causes a frictional force between the diamond wire and the rough block. The cutting of the rough block is completed during the high-speed movement of the diamond wire, and the speed of the diamond wire movement directly affects the cutting efficiency and quality of the rough block. Since the diamond wire diameter is relatively thin, a relatively high speed is required to achieve the cutting of the rough block, which requires a relatively high rotational speed of the roller driving the diamond wire and frequent commutation to save the usage of the diamond wire. The long-term high-speed rotation and frequent commutation of the roller will cause the temperature of the bearings used to support the roller at both ends to increase rapidly, resulting in a corresponding increase in the temperature of adjacent components.

[0005] In the existing wire saw roller bearing cooling method, an integrated bearing housing is mostly used. Bearings are installed inside and a certain amount of lubricant such as lubricating oil or grease is filled. Through the gland and seals, parts such as bearings are sealed inside the bearing housing. A number of axial round holes are provided in the middle annular structure between the inner hole of the bearing housing that mates with the bearing and the outer circle that mates with the installation component. Glands are provided at both end faces of the bearing housing, and grooves that are pairwise connected and corresponding to the holes of the bearing line are provided on the gland end faces, so that the holes in the entire bearing housing are connected into a set of heat dissipation pipelines. One hole connected to the outside is left at each of the two end covers at both ends, facilitating the inflow / outflow of the medium (such as water or oil) for cooling the bearing housing. This cooling method needs to transfer the heat generated during the high-speed operation of the bearing through the heat conduction of the bearing housing, resulting in low efficiency. It may not be able to cool the bearing in time, thus easily causing cutting jitter and affecting the cutting quality. Summary of the Invention

[0006] The purpose of the present invention is to provide a temperature control system and method for the wire roller bearing of 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, affecting the cutting stability and quality.

[0007] In the first aspect, an embodiment of the present invention provides a temperature control system for the wire roller bearing of a stone wire cutting device, including:

[0008] A bearing oil cooling control component for cooling and lubricating the wire roller bearing of the bearing component of the roller and the wire winding component; the bearing oil cooling control component includes: an oil cooler, an oil inlet distributing block, an oil return distributing block, a plurality of oil inlet pipes, and a plurality of oil return pipes;

[0009] The oil inlet distributing block includes an oil inlet collecting port and a plurality of oil inlet distributing ports, and the oil inlet distributing ports are respectively connected to the oil inlet pipes in one-to-one correspondence; the oil inlet collecting port is connected to the oil outlet of the oil cooler, the oil inlet pipes are respectively connected to the bearing cavity inlets of the corresponding bearing components, and the pipe diameter of the oil inlet pipes is proportional to the oil path length from the oil inlet distributing block to the bearing cavity;

[0010] The oil return distributing block includes an oil return collecting port and a plurality of oil return distributing ports, the oil return distributing ports are respectively connected to the oil return pipes in one-to-one correspondence, the oil return collecting port is connected to the oil return port of the oil cooler, and the oil return pipes are respectively connected to the bearing cavity outlets of the bearing components.

[0011] Optionally, the temperature control system for the wire roller bearing of the stone wire cutting device further includes:

[0012] A temperature measuring sensor for detecting the oil temperature in the bearing cavity, and throttle valves are respectively provided on the oil inlet pipes,

[0013] A control unit, which is respectively connected to the temperature measuring sensor and the throttle valve, is configured 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.

[0014] Optionally, the oil inlet manifold is located at one end of the oil inlet manifold block, the oil inlet branch ports are arranged side by side, and the inner diameter of the oil inlet branch port is proportional to the distance from the oil inlet branch port to the oil inlet manifold.

[0015] Optionally, the inner diameters of multiple return oil pipes are the same and are all larger than the inner diameter of the inlet pipe.

[0016] Optionally, the oil return manifold is located at one end of the oil return manifold block, multiple oil return branch ports are arranged side by side in sequence along the length direction of the oil return manifold block, and the inner diameter of the oil return branch port is proportional to the distance from the oil return branch port to the oil return manifold.

[0017] Optionally, a first oil inlet channel for connecting with the oil inlet pipeline is arranged in the bearing assembly corresponding to the roller; wherein, the bearing assembly includes a bearing seat and a thread roller bearing, the thread roller bearing is located in the bearing cavity of the bearing seat, and the first oil inlet channel is located in the bearing seat;

[0018] The first oil inlet channel is arranged horizontally; alternatively, the height of the first oil inlet channel at one end close to the inlet pipe is greater than the height of the first oil inlet channel at one end far from the inlet pipe.

[0019] Optionally, the included angle between the center line of the first oil inlet channel and the horizontal direction is 0 to 5°.

[0020] Optionally, a second oil inlet channel is further arranged in the bearing assembly corresponding to the roller, the second oil inlet channel is arranged vertically and is located between the first oil inlet channel and the bearing cavity, and the connection intersection of 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 communicated with the bearing cavity.

[0021] Optionally, a third oil inlet channel is arranged in the thread roller bearing corresponding to the winding assembly, the third oil inlet channel is arranged vertically, one end of the third oil inlet channel is connected to the inlet pipe, and the other end is connected to the inlet of the bearing cavity of the bearing assembly corresponding to the winding assembly.

[0022] Optionally, the ratio of the oil flow rates corresponding to the bearing assemblies of the rollers far from the oil inlet manifold block, the bearing assemblies of the rollers close to the oil inlet manifold block, and the bearing assemblies of the winding assembly is (2 to 1.5):(1.5 to 1):1.

[0023] Optionally, the inner wall of the bearing cavity is coated with an oil-repellent film layer or a micro-scale convex structure is provided on the side wall of the bearing cavity.

[0024] In a second aspect, the present invention also provides a temperature control method for a wire roller bearing of a stone wire cutting device. Based on the temperature control system described in the first aspect, it includes:

[0025] S100, control the oil cooler to be powered on and started, so that the lubricating oil flows out from the oil outlet of the oil cooler and is respectively diverted through the oil inlet and distribution block and then flows into the bearing cavities of the corresponding wire roller bearings for lubrication;

[0026] S200, control the temperature measuring sensor to continuously detect the oil temperature in the bearing cavity;

[0027] S300, adjust the opening degree 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.

[0028] The present invention has at least the following technical effects:

[0029] The temperature control system and method for the wire roller bearing of the stone wire cutting device provided by the present invention continuously flow the cooled lubricating oil output by the oil cooler into the bearing cavity, taking away the heat generated by the high-speed rotation of the bearing, so that the temperature of each part in the bearing cavity reaches 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, and correspondingly designs the pipe diameter of the oil pipe according to the oil circuit distance between the bearing and the distribution block to ensure the consistency of the lubricating oil pressure of the bearings at different distances, reduce the pressure loss, thereby improving the cooling effect of the bearing, and further ensuring the stable operation of the bearing, avoiding problems such as increased skew and runout of the bearing, resulting in an enlarged cutting gap or even wire breakage, and ensuring the stability and quality of stone wire cutting. Description of the Drawings

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a schematic layout diagram of the temperature control system of a stone wire cutting device provided by an embodiment of the present invention;

[0032] Figure 2 Provided by an embodiment of the present invention Figure 1 Side view of

[0033] Figure 3 Schematic diagram of the bearing oil cooling control component of the temperature control system for the wire roller bearing of a stone wire cutting device provided by an embodiment of the present invention;

[0034] Figure 4 Schematic diagram of the oil inlet and oil distribution block of the temperature control system for the wire roller bearing of a stone wire cutting device provided by an embodiment of the present invention;

[0035] Figure 5 Schematic diagram of the oil return and oil distribution block of the temperature control system for the wire roller bearing of a stone wire cutting device provided by an embodiment of the present invention;

[0036] Figure 6 Schematic diagram of the lubricating oil path connection of the roller bearing cavity of the temperature control system for the wire roller bearing of a stone wire cutting device provided by an embodiment of the present invention;

[0037] Figure 7 Schematic diagram of the lubricating oil path connection of the wire roller bearing oil of the wire winding component of a stone wire cutting device provided by an embodiment of the present invention;

[0038] Figure 8 Flow chart of the temperature control method for the wire roller bearing of a stone wire cutting device provided by an embodiment of the present invention.

[0039] Reference numerals:

[0040] 1 - Oil cooler; 101 - Oil outlet; 102 - Oil return port; 2 - Oil return rubber hose; 3 - Oil return and oil distribution block; 301 - Oil return and oil distribution port; 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-through joint; 7 - Throttle valve; 8 - Oil inlet pipe; 9 - Oil inlet and oil distribution block; 901 - Oil inlet and oil distribution port; 902 - Oil inlet oil collecting port; 10 - Oil inlet rubber hose; 11 - Control unit; 12 - Axle head; 13 - Bearing seat; 14 - Gland; 15 - Diamond wire; 100 - Cutting part; 200 - Lifting part; 300 - Wire winding component; 400 - Wire roller bearing; 410 - Bearing cavity; 500 - Roller; 600 - Bearing oil cooling control component. Detailed implementation manners

[0041] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are some, rather than all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] Those skilled in the art can understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with their meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless specifically defined as here.

[0043] Those skilled in the art can understand that, unless specifically stated, the singular forms "a", "an", "the", and "said" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of the present invention means the presence of the stated 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 their groups. The phrase "and / or" used herein includes all or any unit and all combinations of one or more of the associated listed items.

[0044] The inventor found that in the process of cutting stone with a diamond wire saw, when using the method of cooling the wire roller bearing box with a cooling medium (such as water or oil, etc.) in the prior art, the bearing cannot be cooled in a timely and effective manner, which will cause the bearing temperature to be too high. The lubricating fluid inside the bearing is reduced or deteriorated and fails due to heat evaporation, affecting the running stability of the wire roller bearing and easily causing cutting jitter and affecting the cutting quality; even sometimes, due to the long-term accumulation of heat that cannot be dissipated, the bearing will eventually be locked and damaged due to lack of lubrication, resulting in equipment failures such as diamond wire breakage and waste of rough materials.

[0045] To overcome the above problems, the present invention adopts the method of circulating lubricating oil to cool the wire roller bearing. Although the method of oil cooling is adopted, the inventor found that some wire roller bearings still often have a large jump. After analysis, it is found that they all occur in the bearings far from the oil cooler. To increase the cooling effect, it is necessary to accelerate the oil cooling flow rate and increase the oil pressure. However, the oil pressure of the circulating lubricating oil cannot be too large, otherwise it is easy to cause seal failure and oil leakage; under the same pipe diameter, for the bearings far from the oil cooler, due to the too long oil path, there will be oil pressure loss, resulting in poor cooling effect of some bearings. The inconsistent cooling effect of the bearings is likely to affect the smooth operation of each bearing, and the skew and jump between the bearings become larger, resulting in problems such as larger cutting gaps and even wire breakage.

[0046] The technical solution of the present invention and how the technical solution of the present invention solves the above technical problems will be described in detail below with specific embodiments.

[0047] Combined with Figure 1 and Figure 2As shown in the figure, the main structure of the stone wire cutting system will be introduced first. The stone wire cutting system mainly includes a cutting part 100, a lifting part 200, and a wire winding part. Among them, the lifting part 200 is connected to the ground foundation and serves as the benchmark of the entire stone wire cutting system and the installation platform for each module. At the same time, the lifting part 200 drives the lifting table to lift the rough stone in the vertical direction through the combination of a lead screw and a flat guide rail and a V-shaped guide rail, so as to realize the rise and fall of the rough stone. The cutting part 100 is connected to the lifting part 200. A roller 500 for driving the diamond wire 15 to move at high speed is provided on the cutting part 100. The wire winding parts are arranged on the front and back sides of the cutting part 100 in the direction where the rough stone enters the lifting part 200. The reciprocating movement of the diamond wire 15 is realized through the cooperation of the wire winding parts on both sides, so as to complete the cutting of the rough stone. The diamond wire 15 starts to wind around the wire winding component 300 in one of the wire winding parts, then spirally winds around the four rollers 500 provided on the cutting part 100, and then penetrates through the wire outlet component of the wire winding part on the other side in the width direction of the rough stone and winds around the wire winding component 300 to complete the layout of the cutting wire mesh. During the cutting operation, the wire winding component 300 on one of the wire winding parts serves as the wire paying-off roller, and the wire winding component 300 on the other wire winding part serves as the wire taking-up roller. The two sets of tension components, wire arranging components, and wire routing components in the middle and the four rollers 500 cooperate with each other to tension the diamond wire 15 together to form a diamond wire mesh.

[0048] In order to solve the problems that the wire roller bearings are prone to high temperature during the stone wire cutting process and the inconsistent temperatures of each bearing lead to unstable operation of the bearings, resulting in larger cutting gaps or even wire breakage, etc., the embodiment of the present invention provides a temperature control system for the wire roller bearings 400 of a stone wire cutting device, combined with Figures 1 to 7 As shown in the figure, the temperature control system includes: a bearing oil cooling control component 600 and a control unit 11. The control unit 11 is used to control the bearing oil cooling control component 600 to perform corresponding actions, which can avoid the problems of too long cooling oil circuit path and low cooling efficiency.

[0049] Optionally, in order to avoid the influence of too long pipeline on the cooling oil pressure, the embodiment of the present invention adopts two groups of bearing oil cooling control components 600 to respectively control the wire roller bearings 400 in the bearing components of the rollers 500 and the wire winding roller components on both sides of the cutting part 100, that is, each group of bearing oil cooling control components 600 corresponds to two rollers 500 and the wire winding component 300 on one side of the stone wire cutting device respectively. Among them, the bearing component includes a bearing seat 13. 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 through the oil liquid circulation in the bearing cavity 410, and at the same time, lubrication is provided for the wire roller bearing 400.

[0050] The cooling process of the bearing by the bearing oil cooling control component 600 will be specifically described below:

[0051] Specifically, the bearing oil cooling control component 600 includes: an oil cooler 1, an oil inlet manifold 9, an oil return manifold 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. Therefore, in order to ensure that the oil inlet pipes 8 and oil return pipes 4 of each wire roller bearing 400 respectively form independent oil liquid circuits, each set of bearing oil cooling control components 600 includes six oil inlet pipes 8 and six oil return pipes 4.

[0052] The oil inlet manifold 9 is provided with an oil inlet oil collecting port 902 and six oil inlet distributing ports 901 (that is, the oil liquid flowing into from one oil inlet oil collecting port 902 flows out from the six oil inlet distributing ports 901 respectively). The six oil inlet distributing ports 901 are respectively connected to the six oil inlet pipes 8. The oil return manifold 3 is provided with an oil return oil collecting port 302 and six oil return distributing ports 301 (that is, the oil liquid flowing into from one oil return oil collecting port 302 flows out from the six oil return distributing ports 301 respectively). The six oil return distributing ports 301 are respectively connected to the six oil return pipes 4. The oil inlet oil collecting port 902 of the oil inlet manifold 9 can be connected to the oil outlet 101 of the oil cooler 1 through an oil inlet rubber hose 10, and the oil return oil collecting port 302 of the oil return manifold 3 can be connected to the oil return port 102 of the oil cooler 1 through an oil return rubber hose 2.

[0053] Furthermore, the six oil inlet pipes 8 are respectively connected in one-to-one correspondence with the bearing cavity inlets corresponding to the six wire roller bearings 400 through straight-through joints 6, and the six oil return pipes 4 are respectively connected in one-to-one correspondence with the bearing cavity 410 outlets corresponding to the six wire roller bearings 400 through right-angle joints 5. And the six oil return pipes 4 and the six oil inlet pipes 8 are in one-to-one correspondence to respectively form six oil liquid circulation circuits for different wire roller bearings 400. The pipe diameters of the six oil inlet pipes 8 (the pipe diameter refers to the inner diameter of the oil inlet pipe 8) are proportional to the oil circuit length from the oil inlet manifold 9 to the bearing cavity 410, that is, the longer the oil circuit length from the oil inlet manifold 9 to the bearing cavity 410, the thicker the inner diameter of the corresponding oil inlet pipe 8, and the shorter the oil circuit length from the oil inlet manifold 9 to the bearing cavity 410, the thinner the inner diameter of the corresponding oil inlet pipe 8. In this way, the pipe diameters of different oil inlet pipes are specifically designed according to the distance from the corresponding wire roller bearing 400 to the oil inlet manifold 9, so as to ensure that the oil pressures in the bearing cavities at different distances are basically the same, and further help to ensure the consistency of the cooling effect of each wire roller bearing, so as to improve the running stability of the wire roller bearing 400. It should be noted that the oil circuit length mentioned in this embodiment refers to the length of the oil inlet pipe 8 corresponding to the bearing cavity 410. It should be noted that the proportional relationship mentioned in the embodiment of the present invention can be a linear relationship or a non-linear relationship, and no specific limitation is made here.

[0054] Optionally, the inner diameters of the multiple oil return pipes 4 are the same, and the inner diameter of each oil return pipe 4 is larger than that of the oil inlet pipe 8, which is conducive to rapid reflux. Moreover, multiple identical oil return pipes 4 can be purchased in batches to save costs.

[0055] In some embodiments, a temperature measuring sensor (not shown in the figure) is also correspondingly arranged in the bearing cavity 410. The temperature measuring sensor is used to detect the temperature of the oil in the bearing cavity 410 and can be arranged at the outlet position of the bearing cavity for convenient detection of the oil temperature. Throttle valves 7 are respectively arranged on the oil inlet pipe 8, and the control unit 11 is respectively connected to the temperature measuring sensor and the throttle valves 7 and is used to adjust the flow rate of the throttle valves 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 oil temperature difference in different bearing cavities 410, further reducing the bearing fluctuations caused by the oil temperature difference, and further improving the running stability of the bearings.

[0056] During the specific cutting operation process, after the oil cooler 1 is powered on, it starts immediately. The lubricating thin oil at room temperature is pumped out from the oil outlet 101 and partially injected into the bearing cavity 410 formed by the shaft head 12, the bearing seat 13, and the gland 14 through the oil inlet pipe 8. It flows to the bottom of the cavity under the action of gravity and the rotation of the bearing. When the lubricating thin oil level is higher than the oil return pipe 4 opening, it overflows from the right-angle joint 5 and partially flows back to the oil cooler 1 through the oil return pipe 4. At the same time, the oil inlet pipe 8 continuously supplies the thin oil cooled by the oil cooler 1, forming a circulation loop with the bearing cavity 410, the oil return pipe 4, and the oil cooler 1 to take 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 an equilibrium, and the temperature measuring sensor will continuously feedback the temperature in the bearing cavity 410. When the equilibrium temperature is higher than the preset value, the control system will issue an instruction to adjust the flow rate of the throttle valve 7 to increase the circulating oil supply flow rate until the equilibrium temperature returns within the preset value, and the oil cooler 1 maintains this oil supply flow rate.

[0057] It can be understood that since the positions of the oil cooler 1 and the oil distribution block are fixed, the oil path lengths of the bearing cavities 410 at both ends of the connecting roller 500 are different. To ensure that the amount of lubricating oil flowing into each bearing cavity 410 is equivalent, throttle valves 7 are arranged between the oil distribution block on the oil inlet pipe 8 and the bearing seat 13 to adjust the oil inlet amount in the bearing cavity 410. At the same time, to ensure that there is sufficient lubricating oil for cooling and lubrication in the bearing cavity 410 farthest from the oil cooler 1, a differential design is adopted. The oil path of this part is made of an oil pipe with a larger diameter, and the oil pressure loss caused by the too long oil path is compensated by increasing the oil volume of this path to ensure the balance of the oil pressure and oil volume in each pipeline.

[0058] The temperature control system of the wire roller bearing for the stone wire cutting device provided by the embodiment of the present invention enables the continuously flowing lubricating oil cooled by the oil cooler to flow into the bearing cavity, taking away the heat generated by the high-speed rotation of the bearing, so that the temperature of each part in the bearing cavity reaches the preset balance value. While providing lubrication for the bearing, it ensures that the oil temperature of each bearing is controlled within a relatively consistent range. And the pipe diameter of the oil pipe is correspondingly designed according to the oil circuit distance between the bearing and the oil inlet and oil distributing block to ensure the consistency of the lubricating oil pressure of the bearings at different distances, reduce the pressure loss, thereby improving the cooling effect of the bearing, and further ensuring the stable operation of the bearing, avoiding problems such as increased skew and runout leading to enlarged cutting gaps and broken wires, which is beneficial to improving the precision of stone wire cutting.

[0059] Optionally, the oil inlet collecting port 902 is located at one end of the oil inlet and oil distributing block 9. Six oil inlet distributing ports 901 are arranged side by side along the length direction of the oil inlet and oil distributing block 9. The inner diameter of the six oil inlet distributing ports 901 is proportional to the distance from the oil inlet distributing port 901 to the oil inlet collecting port 902, that is, the inner diameter of the oil inlet distributing port 901 closer to the oil inlet collecting port 902 is smaller, and the inner diameter of the oil inlet distributing port 901 farther from the oil inlet collecting port 902 is larger, so as to ensure that the oil pressure flowing out from each oil inlet distributing port 901 is basically the same, thus minimizing the influence of the oil inlet and oil distributing block itself on the lubricating oil pressure.

[0060] Optionally, the oil return collecting port 302 is located at one end of the oil return and oil distributing block 3. Six oil return distributing ports 301 are arranged side by side along the length direction of the oil return and oil distributing block 3. The inner diameter of the six oil return distributing ports 301 is proportional to the distance from the oil return distributing port 301 to the oil return collecting port 302, that is, the inner diameter of the oil return distributing port 301 closer to the oil return collecting port 302 is smaller, and the inner diameter of the oil return distributing port 301 farther from the oil return collecting port 302 is larger, so as to ensure that the oil pressure flowing into from each oil return distributing port 301 is basically the same.

[0061] In this embodiment, by specially designing the inner diameter of each oil distributing port according to the distance between the oil distributing port and the corresponding collecting port, the inner diameter of the oil distributing port farther from the collecting port is larger, while the inner diameter of the oil distributing port closer to the collecting port is smaller, and the six oil distributing ports of the same oil distributing block change gradually, which is beneficial to accelerating the oil circuit flow to enhance the cooling effect of the bearing.

[0062] In some embodiments, as Figure 6 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 horizontally, and the oil inlet pipe 8 is connected to the first oil inlet channel 411 through a straight-through joint 6.

[0063] Optionally, the height of the first oil inlet passage 411 near the end connected to the oil inlet pipe 8 is greater than the height of the first oil inlet passage 411 away from the oil inlet pipe 8, that is, the first oil inlet passage 411 is inclined inward.

[0064] Optionally, the included angle between the center line of the first oil inlet passage 411 and the horizontal direction is 0 to 5°. In this way, the oil can enter the bearing cavity 410 more smoothly under a lower oil pressure. It can be understood that when the included angle between the center line of the first oil inlet passage 411 and the horizontal direction is 0°, it means that the first oil inlet passage 411 is arranged horizontally.

[0065] Optionally, a second oil inlet passage 412 is further provided in the bearing seat 13 of the bearing assembly corresponding to the roller 500. The second oil inlet passage 412 is arranged vertically. The upper end of the second oil inlet passage 412 is connected to the end of the first oil inlet passage 411 away from the oil inlet pipe 8, and the connection between the two is designed with an arc transition. The lower end of the second oil inlet passage 412 is communicated with the bearing cavity inlet, which is beneficial to the flow of the oil and further reduces the oil pressure loss.

[0066] Optionally, as Figure 7 shown, a third oil inlet passage 413 is provided in the bearing seat 13 of the bearing assembly corresponding to the winding assembly 300. The third oil inlet passage 413 is arranged vertically. One end of the third oil inlet passage 413 is connected to the oil inlet pipe 8, and the other end of the third oil inlet passage 413 is connected to the bearing cavity inlet corresponding to the winding assembly 300. That is, the oil inlet direction of the winding assembly 300 is vertical, and vertical oil inlet is beneficial to reducing the oil pressure loss.

[0067] Optionally, considering the actual structure and size of the stone wire cutting device, in this embodiment, the oil flow rate ratios corresponding to the bearing assemblies of the rollers 500 far from the oil inlet and distribution block 9, the bearing assemblies of the rollers 500 close to the oil inlet and distribution block 9, and the bearing assemblies of the winding assembly 300 are (2 to 1.5):(1.5 to 1):1. Such a setting can more accurately control the oil pressure of the wire roller bearings 400 at different positions, that is, the oil flow rate of the farthest roller is the largest, and the oil flow rate of the nearest winding assembly 300 is the smallest, so that the lubricating oil pressures corresponding to different bearing cavities are more balanced, and the corresponding oil temperatures can also be more accurately controlled within a relatively consistent reasonable range, which is beneficial to improving the cooling effect of the bearings and ensuring the stable operation of the bearings.

[0068] Optionally, the height of the oil in the bearing cavity 410 is described by the liquid level height of the oil relative to the bearing balls. The lowest position of the oil height exceeds the lowest point of the balls, but does not exceed the lowest position of the bearing inner ring, because too low an oil height is not conducive to the rotation of the bearings, and too high an oil height will instead form a blockage to the rotation of the bearings.

[0069] 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.

[0070] 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.

[0071] 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:

[0072] 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;

[0073] S200, controlling the temperature sensor to detect the oil temperature in the bearing cavity 410 in real time;

[0074] 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.

[0075] 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.

[0076] 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.

[0077] Those skilled in the art of the present technology can understand that the various operations, methods, steps, measures, and solutions in the processes discussed in the present invention can be alternated, changed, combined, or deleted. Further, other steps, measures, and solutions in the various operations, methods, and processes discussed in the present invention can also be alternated, changed, rearranged, decomposed, combined, or deleted. Further, those in the prior art that have steps, measures, and solutions in the various operations, methods, and processes disclosed in the present invention can also be alternated, changed, rearranged, decomposed, combined, or deleted.

[0078] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 thus should not be construed as a limitation to the present invention.

[0079] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0080] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples. It should be understood that although the steps in the flowcharts of the accompanying drawings are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise clearly stated in this document, the execution of these steps is not strictly limited in order and may be executed in other orders. Moreover, at least some of the steps in the flowcharts of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, and their execution order is not necessarily sequential, but may be executed alternately or in turn with at least some of the other steps or sub-steps or stages of other steps.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and 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: A bearing oil cooling control assembly is used to cool and lubricate the wire roller bearings of the roller and winding assembly bearing assemblies; The bearing oil cooling control assembly includes: 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; wherein, the bearing assembly includes: a bearing seat and the line roller bearing, and the line roller bearing is located in the bearing cavity of the bearing seat; 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 oil return and oil separation block comprises an oil return collecting port and a plurality of oil return and oil separation ports, the oil return and oil separation ports are respectively connected to the oil return pipes in a one-to-one correspondence, the oil return collecting port is connected to the oil return port of the oil cooler, and the oil return pipes are respectively connected to the bearing cavity outlets of the bearing assemblies; A temperature sensor, the temperature sensor is used to detect the oil temperature in the bearing cavity, and a throttle valve is respectively provided on the oil inlet pipe; A control unit, 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; A first oil inlet channel and a second oil inlet channel are provided in the bearing assembly corresponding to the roller, and the first oil inlet channel is used to be connected to the oil inlet pipe; the first oil inlet channel is located in the bearing seat, and 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.

2. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 1 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.

3. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 1 is 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.

4. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 3 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.

5. The temperature control system of the wire roller bearing for the stone wire cutting device according to any one of claims 1 to 4, characterized in that: 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.

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

7. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 5, characterized in that: The second oil inlet channel is arranged along the vertical direction.

8. 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.

9. The temperature control system of the wire roller bearing for the stone wire cutting device according to claim 1, 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.

10. 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.

11. 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 1 to 10, 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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