Roller shaft rotating mounting structure and rotating mounting method of textile tension roller

Abstract

The application discloses a kind of roller shaft rotating installation structure and the rotating installation method of tensioning roller for weaving, it is related to bearing technical field.In the present application, when the inner ring and the outer ring of bearing connecting piece are axially deflected due to factors such as bending deformation of the tensioning roller, the inner ring drives the roller to move radially along the spherical raceway through the cambered raceway, so that the inner ring and the outer ring will not extrude the roller when deflected, thereby preventing the roller and raceway from being subjected to severe edge extrusion and friction due to the deflection of the inner ring and the outer ring, which may induce bearing wear, temperature rise abnormal noise, roller wear and breakage, or bearing ring cracking, and is beneficial to improve the running stability and service life of the tensioning roller.In the present application, a lubricating part is provided on the bearing connecting piece, which can continuously lubricate the lubricating oil sprayed inside the bearing connecting piece during operation, thereby improving the lubricity of the bearing connecting piece, reducing the wear caused by uneven load on the bearing connecting piece, and is beneficial to improve the service life of the bearing connecting piece.

Description

Technical Field

[0001] This invention belongs to the field of bearing technology, and specifically relates to a roller shaft rotation mounting structure and a method for rotating and mounting a tension roller for textiles. Background Technology

[0002] Existing tension rollers for textile fabric processing generally consist of a steel or aluminum mandrel, coated with a rubber layer, knurled structure, or equipped with needle plates and brushes. They are installed between unwinding, padding, drying, and setting processes using either active or passive drive. Their purpose is to maintain constant longitudinal tension through friction or interlocking with the fabric surface, thereby preventing fabric loosening, wrinkling, weft skew, and misalignment. These tension rollers are typically supported on the frame by bearing seats at both ends and achieve constant tension or closed-loop tension control through the use of cylinders, spring swing arms, or linear guides.

[0003] However, existing tension rollers suffer from significant mechanical defects in practical applications: due to prolonged unidirectional tension, the bearings at both ends of the roller bear uneven loads, easily leading to unilateral wear; furthermore, due to their own weight and continuous tension, tension rollers with large length-to-diameter ratios are prone to static deflection, causing the roller axis to skew. This skew is forcibly transmitted to the inner ring of the bearing, causing the inner ring axis to deflect at an angle relative to the outer ring axis, thus creating a wedging effect inside the bearing, resulting in severe edge compression and friction on the rolling elements and raceways. This abnormal stress not only induces premature bearing wear and abnormal temperature rise and noise, but in extreme cases, it can even lead to rolling element breakage or raceway cracking, seriously affecting the operational stability and service life of the tension roller. Summary of the Invention

[0004] In view of the problems in the related technologies, the present invention proposes a roller shaft rotation mounting structure and a rotation mounting method for a tension roller for textiles, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a roller shaft rotation mounting structure, including a bearing connector that can be fitted onto the end of the roller shaft. The bearing connector includes an outer ring, an inner ring, and multiple rollers. The outer ring is disposed outside the inner ring. A spherical raceway is provided on the inner circumferential surface of the outer ring, and an arcuate raceway is provided on the outer circumferential surface of the inner ring. The multiple rollers are circumferentially distributed and installed between the spherical raceway and the arcuate raceway, so that the outer ring and the inner ring can rotate relative to each other through the rolling support of the rollers. Furthermore, the rollers can roll along the circumference of the spherical raceway while simultaneously rolling along the axial direction of the spherical raceway, so that the inner ring can swing relative to the outer ring. A sealing ring is also installed between the end faces of the outer ring and the inner ring. The sealing ring is provided with an oil groove, and the inner side of the sealing ring is provided with a lubrication part. The lubrication part can draw the lubricating oil in the oil groove and apply it to the roller when the roller rolls, so as to continuously lubricate the outer ring, the inner ring and the roller.

[0006] Furthermore, the bearing connector also includes a cage, which is disposed between the outer ring and the inner ring. The cage is provided with a plurality of circumferentially distributed spherical grooves, and a roller is movably installed in each of the spherical grooves.

[0007] Furthermore, multiple spherical grooves are provided on both sides of the cage to assemble multiple rollers in two rows between the outer ring and the inner ring through the spherical grooves, and two arc-shaped raceways are provided on the outer circumferential surface of the inner ring, with the two rows of rollers respectively circumferentially assembled in the two arc-shaped raceways.

[0008] Furthermore, the spherical grooves on both sides of the cage are arranged alternately.

[0009] Furthermore, the lubrication part includes a nozzle and a pressing and suction part. The pressing and suction part is connected and installed inside the oil tank. The nozzle is connected to the pressing and suction part and extends between the outer ring and the inner ring and is located on the side of the roller movement track, so that when the roller rolls along the circumference of the spherical raceway, it can retract the nozzle towards the sealing ring. The pressing and suction part can draw lubricating oil from the oil tank when the nozzle is retracted, and spray the drawn lubricating oil onto the roller surface through the nozzle. Furthermore, when the roller rolls and deviates axially along the spherical raceway, the roller can increase the distance at which the nozzle is retracted. At this time, pressing the suction part can increase the amount of lubricating oil sucked from the oil groove, thereby increasing the amount of lubricating oil sprayed by the nozzle onto the roller surface.

[0010] Furthermore, the pressing and suction unit includes a hydraulic sleeve, which is fixedly installed inside the oil tank. One end of the hydraulic sleeve is connected to a suction tube extending to the bottom of the oil tank, and the other end of the hydraulic sleeve is sealed with a pressure rod extending between the outer and inner rings. One end of the pressure rod is fixedly connected to the nozzle, and a piston is installed on the inner end of the pressure rod in a sealed sliding connection with the hydraulic sleeve. A sealing ball is provided at the inlet end of the hydraulic sleeve, and a spring is installed between the pressure rod and the sealing ball. The pressure rod is provided with a connection for communicating with the nozzle. The nozzle and pressure rod can retract into the hydraulic sleeve under the abutment of the roller. At this time, the pressure rod can drive the piston to move, so that the piston can squeeze and transport the lubricating oil in the hydraulic sleeve into the nozzle through the one-way flow channel, and spray it onto the roller. When the nozzle is no longer abutted by the roller, the spring can drive the pressure rod, piston and nozzle to move and reset. At this time, the piston evacuates the hydraulic sleeve, so that the sealing ball moves to release the seal on the inlet end of the hydraulic sleeve, so that the hydraulic sleeve can draw the lubricating oil in the oil tank through the suction pipe.

[0011] Furthermore, the unidirectional flow channel includes a groove and a nozzle. The groove is disposed on the end face of the nozzle, and the nozzle is disposed inside the pressure rod. One end of the nozzle communicates with the groove, and the other end of the nozzle is provided with a guide hole that communicates with the inside of the hydraulic sleeve. The piston is slidably mounted on the pressure rod, and the outer ring of the pressure rod is fixedly mounted with a liquid outlet limiting ring and a liquid suction limiting ring located on the left and right sides of the piston, respectively.

[0012] Furthermore, a detection unit is also installed on the sealing ring, and a push rod located on one side of the detection unit is installed on the pressing and suction unit. The pressing and suction unit can push and trigger the detection unit by the push rod when the roller exceeds the offset threshold.

[0013] Furthermore, the detection unit includes a detection port, which is located on the outer side of the sealing ring and communicates with the oil groove. A detection rod located on one side of the top rod is sealed inside the detection port.

[0014] A method for rotating and installing a tension roller for textiles, the specific steps of which are as follows: Bearing connectors are installed at both ends of the tension roller. During installation, the end of the tension roller is fixedly inserted into the inner ring, and then the outer ring is fixedly installed on the tension roller mounting bracket. When the tension roller rotates, it drives the inner ring to rotate synchronously. At this time, the inner ring rotates relative to the outer ring through the roller, and drives the roller to roll along the spherical raceway in the circumferential direction. The lubrication section draws lubricating oil from the oil groove and applies it to the roller as it rolls, continuously lubricating the outer ring, inner ring, and roller. When the tension roller bends and deforms, it causes the inner ring to deflect, resulting in axial misalignment between the inner and outer rings. At this time, the inner ring drives the roller to move radially along the spherical raceway through the arc-shaped raceway, so that the rollers will not be squeezed when the inner and outer rings are misaligned.

[0015] Furthermore, this bearing connector can also be used as a bearing for industrial robots, enabling error compensation during robot assembly and improving the robot's rotational accuracy.

[0016] The present invention has the following beneficial effects: 1. In this invention, when the inner and outer rings of the bearing connector are axially misaligned due to factors such as bending deformation of the tension roller, the inner ring drives the roller to move radially along the spherical raceway through the arc-shaped raceway. This prevents the roller from being squeezed when the inner and outer rings are misaligned, thus preventing the roller and raceway from being subjected to severe edge compression and friction due to the misalignment of the inner and outer rings, which could induce early bearing wear, abnormal temperature rise and noise, roller wear and breakage, or bearing ring cracking. This is beneficial to improving the operating stability and service life of the tension roller.

[0017] 2. In this invention, a lubrication section is provided on the bearing connector. The nozzle and pressure rod inside the lubrication section can retract into the hydraulic sleeve under the abutment of the roller. At this time, the pressure rod can drive the piston to move, so that the piston can squeeze and transport the lubricating oil in the hydraulic sleeve through the one-way flow channel to the nozzle, and then spray it onto the roller. When the roller rolls, it spreads the lubricating oil to the inner and outer rings to lubricate the roller, inner ring, and outer ring. When the nozzle is no longer abutted by the roller, the spring can drive the pressure rod, piston, and nozzle to move and reset. At this time, the piston evacuates the hydraulic sleeve, so that the sealing ball moves to release the seal on the inlet end of the hydraulic sleeve, allowing the hydraulic sleeve to draw liquid. The tube draws lubricating oil from the oil groove, allowing the lubrication unit to continuously spray lubricating oil onto the bearing connection during operation. This improves the lubricity of the bearing connection, reduces wear caused by uneven loads, and extends its service life. Furthermore, when the rollers roll axially along the spherical raceway, they increase the distance the nozzle retracts. Pressing the suction unit at this time increases the amount of lubricating oil drawn from the oil groove, thus increasing the amount of lubricating oil sprayed onto the roller surface. This further enhances the lubrication of the bearing connection when the inner and outer rings of the bearing are misaligned, preventing wear.

[0018] 3. In this invention, a detection unit is also installed on the sealing ring, and a push rod is installed on the pressing and suction unit located on one side of the detection unit. When the misalignment angle between the inner and outer rings of the bearing is too large and exceeds the safety threshold, the pressing and suction unit can push and trigger the detection unit through the push rod, so that the staff can know in time that the misalignment angle of the bearing connecting parts is too large, and thus replace and repair the bearing connecting parts and tension rollers in time.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, the drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is one of the three-dimensional structural schematic diagrams of the roller mounting structure of the present invention; Figure 2 This is the second three-dimensional structural schematic diagram of the roller mounting structure of the present invention; Figure 3 This is the third three-dimensional structural schematic diagram of the roller mounting structure of the present invention; Figure 4 This is a schematic diagram of the end face structure of the roller mounting structure of the present invention; Figure 5 This is a schematic diagram of the inner ring of the roller mounting structure of the present invention; Figure 6 This is a schematic diagram of the structure of the roller mounting structure cage and roller of the present invention; Figure 7 This is a schematic diagram of the outer ring of the roller mounting structure of the present invention; Figure 8 This is a schematic diagram of the internal structure of the roller mounting structure of the present invention; Figure 9 This is one of the three-dimensional structural schematic diagrams of the sealing ring of the roller mounting structure of the present invention; Figure 10 This is the second three-dimensional structural schematic diagram of the sealing ring of the roller mounting structure of the present invention; Figure 11 This is the third three-dimensional structural schematic diagram of the sealing ring of the roller mounting structure of the present invention; Figure 12 For the present invention Figure 11 Enlarged structural diagram at point A; Figure 13 This is a three-dimensional structural diagram of the lubrication part of the present invention; Figure 14 This is a schematic diagram of the internal structure of the lubrication part of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of the invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the invention.

[0023] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the invention.

[0024] Example 1 Please see Figure 1 , Figure 2 , Figure 8 , Figure 9As shown, the present invention is a roller shaft rotation mounting structure, including a bearing connector that can be fitted onto the end of the roller shaft. The bearing connector includes an outer ring 1, an inner ring 2, and a plurality of rollers 5. The outer ring 1 is disposed outside the inner ring 2. A spherical raceway 11 is provided on the inner circumferential surface of the outer ring 1, and an arc raceway 21 is provided on the outer circumferential surface of the inner ring 2. The plurality of rollers 5 are circumferentially distributed and installed between the spherical raceway 11 and the arc raceway 21, so that the outer ring 1 and the inner ring 2 can rotate relative to each other through the rolling support of the rollers 5. The rollers 5 can roll along the circumference of the spherical raceway 11 while simultaneously rolling along the axial direction of the spherical raceway 11, so that the inner ring 2 can swing relative to the outer ring 1. A sealing ring 3 is installed between the end faces of the outer ring 1 and the inner ring 2. An oil groove 31 is provided on the sealing ring 3, and a lubrication part 7 is provided on the inner side of the sealing ring 3. The lubrication part 7 can draw and apply the lubricating oil from the oil groove 31 to the roller 5 when the roller 5 rolls, so as to continuously lubricate the outer ring 1, the inner ring 2 and the roller 5.

[0025] When the roller shaft is rotated, bearing connectors are installed at both ends of the roller shaft. Specifically, the end of the roller shaft is fixedly inserted into the inner ring 2, and then the outer ring 1 is fixedly installed on the roller shaft mounting bracket. When the roller shaft rotates, it drives the inner ring 2 to rotate synchronously. At this time, the inner ring 2 rotates relative to the outer ring 1 through the roller 5, and drives the roller 5 to roll along the spherical raceway 11 in the circumferential direction. When the roller 5 rolls, the lubrication part 7 draws and applies the lubricating oil from the oil groove 31 to the roller 5 to continuously lubricate the outer ring 1, the inner ring 2, and the roller 5. When the roller shaft bends... During deformation, the roller shaft drives the inner ring 2 to deflect, causing axial misalignment between the inner ring 2 and the outer ring 1. At this time, the inner ring 2 drives the roller 5 to move radially along the spherical raceway 11 through the arc-shaped raceway 21. This prevents the roller 5 from being squeezed when the inner ring 2 and outer ring 1 are misaligned, thus preventing the roller 5, spherical raceway 11, and arc-shaped raceway 21 from being subjected to severe edge compression and friction due to the misalignment of the inner ring 2 and outer ring 1. This prevents premature bearing wear, abnormal temperature rise and noise, roller wear and breakage, or bearing ring cracking, which is beneficial to improving the operating stability and service life of the roller shaft. At the same time, the lubrication part 7 can continuously spray lubricating oil into the bearing connection during operation to improve the lubricity of the bearing connection and reduce the wear caused by the bearing connection under non-uniform loads, which is beneficial to improving the service life of the bearing connection.

[0026] Example 2 Please see Figures 1-8 As shown, the difference between this embodiment and the above embodiment is that the bearing connector also includes a cage 4, which is disposed between the outer ring 1 and the inner ring 2. The cage 4 is provided with a plurality of circumferentially distributed spherical grooves 41, and a roller 5 is movably installed in each spherical groove 41.

[0027] The retainer 4 and the spherical groove 41 work together to limit the rollers 5, so that each roller 5 is evenly distributed along the circumference on the raceway, avoiding the load from being concentrated on one or two rollers 5. This makes the outer ring 1 and inner ring 2 more evenly stressed when the bearing connection is working, and at the same time prevents adjacent rollers 5 from contacting, colliding and generating sliding friction, making the rotation of the bearing connection smoother and less strenuous.

[0028] Furthermore, multiple spherical grooves 41 are provided on both sides of the cage 4, so that multiple rollers 5 are assembled in two rows between the outer ring 1 and the inner ring 2 through the spherical grooves 41. Two arc-shaped raceways 21 are provided on the outer circumference of the inner ring 2. The two rows of rollers 5 are respectively assembled in the two arc-shaped raceways 21. By setting two rows of rollers 5 between the outer ring 1 and the inner ring 2, the radial load capacity of the bearing connection can be improved, and the symmetrically arranged two rows of rollers 5 can better adapt to the deflection of the inner ring 2, avoiding the problems of uneven load of rollers 5 and stress concentration at the edge of the raceway that are easy to occur with a single row. This allows the bearing connection to simultaneously take into account high load and self-alignment.

[0029] Furthermore, the spherical grooves 41 on both sides of the cage 4 are staggered so that the two rows of rollers 5 are staggered. By staggering the rollers 5, the uniformity and density of the rollers in the radial distribution along the bearing connection can be improved, and the radial stiffness of the bearing connection can be more uniform in all directions, thereby improving the radial support stability of the bearing connection.

[0030] Example 3 Please see Figure 1 , Figure 2 , Figures 9-14 As shown, the difference between this embodiment and the above embodiment is that the lubrication part 7 includes a nozzle 72 and a pressing suction part. The pressing suction part is connected and installed inside the oil groove 31. The nozzle 72 communicates with the pressing suction part, and the nozzle 72 extends between the outer ring 1 and the inner ring 2 and is located on the side of the movement track of the roller 5, so that when the roller 5 rolls along the circumference of the spherical raceway 11, it can push the nozzle 72 against and retract it towards the sealing ring 3. The pressing suction part can draw lubricating oil from the oil groove 31 when the nozzle 72 is pushed against and retracted, and the lubricating oil is then drawn through the nozzle 72. 2. The sucked lubricating oil is sprayed onto the surface of the roller 5, so that when the bearing connection rotates, multiple rollers 5 can roll past the nozzle 72 in sequence, so that the nozzle 72 and the pressing suction part cooperate to continuously spray lubricating oil onto each roller 5 that rolls past. When the roller 5 rolls, the lubricating oil spreads and coats the outer ring 1 and the inner ring 2. Thus, the nozzle 72 and the pressing suction part cooperate to continuously and comprehensively lubricate the inside of the bearing connection, so as to improve the lubrication performance of the bearing connection and prevent the bearing connection from wearing. Furthermore, when the roller 5 rolls and shifts axially along the spherical raceway 11, the roller 5 can increase the distance at which the nozzle 72 abuts and retracts. At this time, pressing the suction part can increase the amount of lubricating oil sucked into the oil groove 31, thereby increasing the amount of lubricating oil sprayed by the nozzle 72 onto the surface of the roller 5, and thus improving the lubrication effect on the bearing connecting parts.

[0031] Specifically, the press-and-suction unit includes a hydraulic sleeve 71, which is fixedly installed inside the oil tank 31. One end of the hydraulic sleeve 71 is connected to a suction pipe 73 extending to the bottom of the oil tank 31. The other end of the hydraulic sleeve 71 is sealed with a pressure rod 77 extending between the outer ring 1 and the inner ring 2. One end of the pressure rod 77 is fixedly connected to the nozzle 72. A piston 78 is installed on the inner end of the pressure rod 77 and is slidably connected to the hydraulic sleeve 71. A sealing ball 713 is provided at the inlet end of the hydraulic sleeve 71. A spring 712 is installed between the pressure rod 77 and the sealing ball 713. A one-way flow channel is provided on the pressure rod 77 to connect the nozzle 72 and the hydraulic sleeve 71. The nozzle 72 and the pressure rod 77 can retract into the hydraulic sleeve 71 under the abutment of the roller 5. At this time, the pressure rod 77 can drive the piston 78 to move. The piston 78 compresses and delivers the lubricating oil in the hydraulic sleeve 71 through a one-way flow channel to the nozzle 72, where it is sprayed onto the roller 5, thus lubricating the bearing connection. When the nozzle 72 is no longer pressed by the roller 5, the spring 712 drives the pressure rod 77, piston 78, and nozzle 72 to move and reset. At this time, the piston 78 evacuates the hydraulic sleeve 71, causing the sealing ball 713 to move and release the seal on the inlet end of the hydraulic sleeve 71. This allows the hydraulic sleeve 71 to draw lubricating oil from the oil tank 31 through the suction pipe 73, replenishing the hydraulic sleeve 71 with lubricating oil. This ensures that when the next roller 5 rolls past the nozzle 72, the nozzle 72, pressure rod 77, and piston 78 work together to compress and spray the lubricating oil in the hydraulic sleeve 71 onto the bearing connection.

[0032] Furthermore, the unidirectional flow channel includes a groove 75 and a nozzle 76. The groove 75 is located on the end face of the nozzle 72, and the nozzle 76 is located inside the pressure rod 77. One end of the nozzle 76 communicates with the groove 75, and the other end of the nozzle 76 is provided with a guide hole 711 that communicates with the inside of the hydraulic sleeve 71. The piston 78 is slidably mounted on the pressure rod 77, and the outer ring of the pressure rod 77 is fixedly mounted with a liquid outlet limiting ring 79 and a liquid suction limiting ring 710 located on the left and right sides of the piston 78, respectively.

[0033] When the nozzle 72 is not driven by the contact, the pressure rod 77 and the nozzle 72 are in the extended state under the drive of the spring 712. At this time, one end of the piston 78 abuts against the liquid suction limiting ring 710, and the piston 78 seals the guide hole 711. When the nozzle 72 retracts towards the hydraulic sleeve 71 under the contact of the roller 5, the nozzle 72 drives the pressure rod 77 to retract into the hydraulic sleeve 71. At this time, the pressure rod 77 moves out of position before the piston 78, causing the guide hole 711 on the pressure rod 77 to move to the hydraulic sleeve 71. The piston 78 is moved to the outside, so that the guide hole 711 is connected to the hydraulic sleeve 71. Then, the pressure rod 77 drives the liquid outlet limit ring 79 to abut against the left end of the piston 78, and pushes the piston 78 to the right through the liquid outlet limit ring 79, so that the space inside the hydraulic sleeve 71 is gradually compressed. At this time, the lubricating oil in the hydraulic sleeve 71 is transported to the nozzle 72 through the guide hole 711 and the spray hole 76, and finally passes through the groove 75 in the nozzle 72 and is sprayed onto the roller 5, thereby lubricating the bearing connection. After the roller 5 moves past the nozzle 72, the nozzle 72 and the pressure rod 77 gradually move to the left and reset under the drive of the spring 712. At this time, the pressure rod 77 first moves to the left relative to the piston 78 to offset it, so that the guide hole 711 on the pressure rod 77 moves to the inner ring of the piston 78, so that the guide hole 711 is sealed again. Then, the suction limiting ring 710 abuts against the right side of the piston 78 and pushes the piston 78 to the left, so that the internal space of the hydraulic sleeve 71 gradually increases and generates negative pressure. Through this negative pressure, the sealing ball 713 is drawn inward to make the seal... The sealing ball 713 moves to release the seal on the inlet end of the hydraulic sleeve 71, allowing the hydraulic sleeve 71 to draw lubricating oil from the oil tank 31 through the suction pipe 73, thereby replenishing the lubricating oil in the hydraulic sleeve 71. This allows the next roller 5 to pass the nozzle 72 position, where the nozzle 72, pressure rod 77, and piston 78 work together to squeeze and spray the lubricating oil in the hydraulic sleeve 71 into the bearing connector. This process is repeated, ensuring that lubricating oil is continuously sprayed onto the roller 5 as it passes the nozzle 72 position, thus continuously lubricating the bearing connector.

[0034] Example 4 Please see Figure 2 , Figures 10-14 As shown, the difference between this embodiment and the above embodiment is that a detection part 6 is also installed on the sealing ring 3, and a push rod 74 located on one side of the detection part is installed on the pressing and suction part. When the roller 5 exceeds the offset threshold, the pressing and suction part can push and trigger the detection part 6 through the push rod 74, so that the staff can know in time that the bearing connection part is too skewed, and thus replace and repair the bearing connection part and roller shaft in time.

[0035] Furthermore, the detection unit 6 includes a detection port 61, which is located on the outer side of the sealing ring 3 and communicates with the oil groove 31. The detection port 61 is sealed with a detection rod 62 located on one side of the top rod 74.

[0036] The push rod 74 is slidably mounted on the hydraulic sleeve 71, and one end of the push rod 74 is fixedly connected to the end of the pressure rod 77. When the pressure rod 77 retracts and moves into the hydraulic sleeve 71 under the drive of the roller 5, the pressure rod 77 can drive the push rod 74 to move towards the inner end of the detection rod 62. When the outer ring 1 and the inner ring 2 are not skewed or the skew angle is within the safety threshold, the push rod 74 does not contact the detection rod 62, thus not triggering the detection rod 62. However, when the skew angle of the outer ring 1 and the inner ring 2 exceeds the safety threshold, it will drive the roller 74 to move towards the inner end of the detection rod 62. As the offset distance of roller 5 increases synchronously, when roller 5 moves past the nozzle 72, roller 5 can push nozzle 72, pressure rod 77 and push rod 74 outward a further distance so that push rod 74 pushes against the inner end of detection rod 62, so that detection rod 62 is pushed outward from the detection port 61 by a certain distance. At this time, the staff can know that the misalignment angle of the bearing connector is too large by the detection rod 62 protruding outside the detection port 61, so that the bearing connector can be replaced and repaired in time.

[0037] Furthermore, the detection port 61 can also serve as a filling port for the oil tank 31, allowing lubricating oil to be added to the oil tank 31 through the detection port 61. The detection rod 62 can seal the detection port 61 to prevent lubricating oil leakage.

[0038] Example 5 This embodiment discloses a method for rotating and installing a tension roller for textiles, the specific steps of which are as follows: Bearing connectors are installed at both ends of the tension roller. During installation, the end of the tension roller is fixedly inserted into the inner ring 2, and then the outer ring 1 is fixedly installed on the tension roller mounting bracket. When the tension roller rotates, it drives the inner ring 2 to rotate synchronously. At this time, the inner ring 2 rotates relative to the outer ring 1 through the roller 5, and drives the roller 5 to roll along the spherical raceway 11 in the circumferential direction. The lubrication section 7 draws and applies the lubricating oil from the oil groove 31 to the roller 5 as the roller 5 rolls, so as to continuously lubricate the outer ring 1, the inner ring 2 and the roller 5. When the tension roller bends and deforms, it causes the inner ring 2 to deflect, resulting in an axial misalignment between the inner ring 2 and the outer ring 1. At this time, the inner ring 2 drives the roller 5 to move radially along the spherical raceway 11 through the arc raceway 21, so that the inner ring 2 and the outer ring 1 will not squeeze the roller 5 when they are misaligned.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of the invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A roller shaft rotation mounting structure, comprising a bearing connector, characterized in that: The bearing connector can be fitted onto the end of the roller shaft. The bearing connector includes an outer ring, an inner ring, and a plurality of rollers. The outer ring is disposed outside the inner ring. A spherical raceway is provided on the inner circumferential surface of the outer ring, and an arcuate raceway is provided on the outer circumferential surface of the inner ring. The plurality of rollers are circumferentially distributed and installed between the spherical raceway and the arcuate raceway so that the outer ring and the inner ring can rotate relative to each other through the rolling support of the rollers. Furthermore, the rollers can roll along the circumference of the spherical raceway while simultaneously rolling along the axial direction of the spherical raceway so that the inner ring can swing relative to the outer ring. A sealing ring is also installed between the end faces of the outer ring and the inner ring. The sealing ring is provided with an oil groove, and the inner side of the sealing ring is provided with a lubrication part. The lubrication part can draw the lubricating oil in the oil groove and apply it to the roller when the roller rolls, so as to continuously lubricate the outer ring, the inner ring and the roller.

2. The roller shaft rotation mounting structure according to claim 1, characterized in that: The bearing connector also includes a cage, which is disposed between the outer ring and the inner ring. The cage has a plurality of circumferentially distributed spherical grooves, and a roller is movably installed in each of the spherical grooves.

3. The roller shaft rotation mounting structure according to claim 1, characterized in that: The cage has multiple spherical grooves on both sides to assemble multiple rollers in two rows between the outer ring and the inner ring. The outer circumferential surface of the inner ring has two arc-shaped raceways, and the two rows of rollers are respectively circumferentially assembled in the two arc-shaped raceways.

4. The roller shaft rotation mounting structure according to claim 3, characterized in that: The spherical grooves on both sides of the cage are arranged alternately.

5. The roller shaft rotation mounting structure according to claim 1, characterized in that: The lubrication unit includes a nozzle and a pressing suction unit. The pressing suction unit is connected and installed inside the oil tank. The nozzle is connected to the pressing suction unit and extends between the outer ring and the inner ring and is located on the side of the roller's movement track, so that when the roller rolls along the circumference of the spherical raceway, it can retract the nozzle towards the sealing ring. The pressing suction unit can draw lubricating oil from the oil tank when the nozzle is retracted, and spray the drawn lubricating oil onto the roller surface through the nozzle. Furthermore, when the roller rolls and deviates axially along the spherical raceway, the roller can increase the distance at which the nozzle is retracted. At this time, pressing the suction part can increase the amount of lubricating oil sucked from the oil groove, thereby increasing the amount of lubricating oil sprayed by the nozzle onto the roller surface.

6. The roller shaft rotation mounting structure according to claim 5, characterized in that: The press-and-suction unit includes a hydraulic sleeve, which is fixedly installed inside the oil tank. One end of the hydraulic sleeve is connected to a suction tube extending to the bottom of the oil tank, and the other end of the hydraulic sleeve is sealed with a pressure rod extending between the outer and inner rings. One end of the pressure rod is fixedly connected to the nozzle, and the inner end of the pressure rod is fitted with a piston that is slidably and sealingly connected to the hydraulic sleeve. A sealing ball is provided at the inlet end of the hydraulic sleeve, and a spring is installed between the pressure rod and the sealing ball. The pressure rod is provided with a connection for communicating between the nozzle and the liquid... The pressure sleeve has a one-way flow channel. The nozzle and pressure rod can retract into the hydraulic sleeve under the abutment of the roller. At this time, the pressure rod can drive the piston to move, so that the piston can squeeze and transport the lubricating oil in the hydraulic sleeve into the nozzle through the one-way flow channel, and spray it onto the roller by the nozzle. When the nozzle is no longer abutted by the roller, the spring can drive the pressure rod, piston and nozzle to move and reset. At this time, the piston evacuates the hydraulic sleeve, so that the sealing ball moves to release the seal on the inlet end of the hydraulic sleeve, so that the hydraulic sleeve can draw the lubricating oil in the oil tank through the suction pipe.

7. The roller shaft rotation mounting structure according to claim 6, characterized in that: The unidirectional flow channel includes a groove and a nozzle. The groove is located on the end face of the nozzle, and the nozzle is located inside the pressure rod. One end of the nozzle is connected to the groove, and the other end of the nozzle is provided with a guide hole that is connected to the inside of the hydraulic sleeve. The piston is slidably mounted on the pressure rod, and the outer ring of the pressure rod is fixedly mounted with a liquid outlet limiting ring and a liquid suction limiting ring located on the left and right sides of the piston, respectively.

8. The roller shaft rotation mounting structure according to claim 5, characterized in that: The sealing ring is also equipped with a detection unit, and the pressing and suction unit is equipped with a push rod located on one side of the detection unit. The pressing and suction unit can push and trigger the detection unit by the push rod when the roller exceeds the offset threshold.

9. The roller shaft rotation mounting structure and the rotation mounting method for a textile tension roller according to claim 8, characterized in that: The detection unit includes a detection port, which is located on the outer side of the sealing ring and communicates with the oil groove. A detection rod located on one side of the top rod is sealed inside the detection port.

10. A method for rotating and installing a tension roller for textiles, using the roller shaft rotational installation structure according to any one of claims 1-9, characterized in that, The specific steps are as follows: Bearing connectors are installed at both ends of the tension roller. During installation, the end of the tension roller is fixedly inserted into the inner ring, and then the outer ring is fixedly installed on the tension roller mounting bracket. When the tension roller rotates, it drives the inner ring to rotate synchronously. At this time, the inner ring rotates relative to the outer ring through the roller, and drives the roller to roll along the spherical raceway in the circumferential direction. The lubrication section draws lubricating oil from the oil groove and applies it to the roller as it rolls, continuously lubricating the outer ring, inner ring, and roller. When the tension roller bends and deforms, it causes the inner ring to deflect, resulting in axial misalignment between the inner and outer rings. At this time, the inner ring drives the roller to move radially along the spherical raceway through the arc-shaped raceway, so that the rollers will not be squeezed when the inner and outer rings are misaligned.

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