Belt pulley and machining equipment thereof
By designing pulley components and grinding equipment, the problem of pulley installation and disassembly difficulties and damage and abrasions during the grinding process is solved, and the effect of convenient installation and uniform grinding is achieved.
Patent Information
- Application Number
- CN202510635602.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2025-08-01
AI Technical Summary
In the prior art, the pulley is an integrated structure, which is difficult to install and disassemble, and is prone to damage and scratches during the polishing process, affecting the polishing effect.
A pulley assembly is designed, including a hub and a shaft sleeve, which can be easily installed and disassembled through the cooperation of semicircular clamping strips and grooves, and self-locking fixation is achieved using threaded columns and conical extension rings; combined with grinding equipment, a three-claw frame driven by hydraulic cylinder and a servo motor drive brush for uniform polishing.
It realizes convenient installation and disassembly of pulleys, avoids damage caused by heating and vigorous knocking, is not easy to scratch during grinding, and the grinding effect is uniform and accurate.
Smart Images
Figure CN120402607A_ABST
Abstract
Description
Technical Field
[0001] Embodiments of the present disclosure relate to the technical field of pulleys, and in particular, to a pulley and a processing device thereof. Background Art
[0002] Pulleys are a commonly used transmission device, usually connected to a drive shaft. The drive shaft needs to work closely with the pulley in the process of driving the pulley to rotate, and when the drive shaft or pulley needs maintenance, the pulley needs to be separated from the drive shaft. Pulleys are hub-type parts, generally relatively large in size, and the manufacturing process is generally based on casting and forging. Generally, larger designs are cast, and the material is generally cast iron, which has better casting performance. Pulleys play a transmission role in the machinery industry. Pulleys generally need to be polished during production and processing to prevent burrs and sharp objects from affecting the operation of the belt and to avoid scratching the belt. Therefore, polishing equipment is required.
[0003] In the prior art, the pulley is an integrated type, and when installing and disassembling the pulley, it is necessary to heat and strike it vigorously, which makes installation and disassembly difficult. In severe cases, it may cause damage to the pulley. Moreover, when grinding the edge of the pulley surface, the friction between the grinding tool and the pulley can easily cause scratches on the pulley, affecting the grinding effect. Summary of the Invention
[0004] In order to overcome the above-mentioned defects, the embodiments of the present disclosure provide a pulley and its processing equipment, which solves the technical problem that the pulley in the related technology / existing technology is an integrated type, and when the pulley is installed and disassembled, it needs to be heated and struck vigorously, which makes installation and disassembly difficult, and in severe cases, it may cause damage to the pulley. In addition, when grinding the edge of the pulley surface, the friction between the grinding tool and the pulley can easily cause scratches on the pulley, affecting the grinding effect.
[0005] According to one aspect, at least one embodiment of the present disclosure provides a pulley, comprising: A pulley assembly, the pulley assembly being used to output power; Among them, the pulley assembly includes a hub and a bushing. The bushing is embedded inside the hub. A semi-circular strip-shaped groove is formed on the inner wall of the hub. A semi-circular clamping strip is fixedly connected to the outer circular surface of the bushing. The semi-circular clamping strip is embedded inside the semi-circular strip-shaped groove. A keyway is formed on the inner wall of the bushing. A fixing module is installed between the inner wall of the hub and the outer circular surface of the bushing. During installation, the bushing is installed and fixed to the end of the output shaft of an external device through the keyway, and the semi-circular clamping strip is embedded inside the semi-circular strip-shaped groove. By using the cooperation between the semi-circular clamping strip and the semi-circular strip-shaped groove, the hub is installed on the surface of the bushing. And under the overall fixation of the fixing module, the hub and the bushing are assembled into one body. By using the cooperation between the semi-circular clamping strip and the semi-circular strip-shaped groove to increase the contact area, it helps the hub and the bushing to rotate together to transmit power. When the hub needs to be replaced, only loosen the fixing module, and then the whole hub can be removed. The installation and disassembly of the hub are convenient by using the cooperation between the hub and the bushing, and heating and heavy knocking will not damage the hub.
[0006] Preferably, there are three semi-circular strip-shaped grooves, and the three semi-circular strip-shaped grooves are evenly distributed on the inner wall of the hub. There are three semi-circular clamping strips, and the three semi-circular clamping strips are evenly distributed on the outer circular surface of the bushing.
[0007] Preferably, the fixing module includes a threaded column. The threaded column is fixedly installed on the inner wall of the hub and the outer circular surface of the bushing through internal threads. A first nut and a second nut are sequentially threadedly installed at the threaded groove on the surface of the threaded column. A conical extension ring is fixedly connected to the surface of the second nut. An annular conical inclined surface adapted to the conical extension ring is formed on the surface of the first nut, and the conical extension ring is installed between the second nut and the first nut. By screwing the threaded column between the hub and the bushing, the hub can be preliminarily fixed. By threadedly matching the first nut with the threaded column, it can be fixed again without loosening. And by threadedly matching the second nut with the threaded column, the conical extension ring is embedded into the annular conical inclined surface formed on the surface of the first nut, so as to lock the first nut, achieving self-locking and not easily occurring the situation of thread withdrawal.
[0008] Preferably, there are three threaded columns, and the three threaded columns are evenly distributed between the inner wall of the hub and the outer circular surface of the bushing. The central axis of the conical extension ring coincides with the central axis of the second nut.
[0009] According to another aspect, at least one embodiment of the present disclosure further provides a belt pulley processing device, including: A grinding device that grinds the belt groove on the surface of the hub; Among them, the grinding equipment includes a machine body and a gantry. The gantry is fixedly installed at the side of the top of the machine body. A feeding mechanism is installed in the middle of the top of the machine body, and a grinding mechanism is installed in the middle of the top of the gantry. The grinding mechanism includes a hydraulic cylinder and a three-jaw support. The hydraulic cylinder is fixedly installed on the top of the gantry. The top of the three-jaw support is fixedly connected to the telescopic end of the hydraulic cylinder. A cylinder is rotatably installed at the bottom of the three-jaw support. Ball bearings are installed at the edge of the bottom of the cylinder for rolling. A servo motor is fixedly installed in the middle of the top of the three-jaw support. The output end of the servo motor is fixedly connected to the top of the cylinder through a coupling. A round roller is installed inside the cylinder. A brush is fixedly connected to the outer circumferential surface of the round roller. A pressing rod is fixedly installed at the top of the inner cavity of the cylinder. A spherical pressing block is rotatably installed at the bottom of the pressing rod. By extending and contracting the output end of the hydraulic cylinder, the three-jaw support can be driven to move downward and upward, so that the whole cylinder and the brush are driven to move together, thereby adjusting the height of the whole cylinder and the brush and adjusting the brush, which is convenient for subsequent grinding of the hub surface.
[0010] Preferably, the round rollers are evenly distributed inside the cylinder, the brushes are evenly distributed on the outer circumferential surface of the round rollers, and the ball bearings are evenly distributed at the edge of the bottom of the cylinder. The round rollers are driven to rotate by a driver at the top of the cylinder, so that the brushes are driven to rotate. The surface of the hub can be ground by the rotation of the brushes themselves. At the same time, by using the rotation of the output end of the servo motor and supported by the three-jaw support, the cylinder is driven to rotate by the output end of the servo motor, so that the whole round roller and the brush are driven to rotate. The brush forms a revolution along the axis of the cylinder. By making the rotation direction of the brush and the cylinder opposite, the surface of the hub can be further evenly ground.
[0011] By making the ball bearings at the bottom of the cylinder fit with the bottom of the inner cavity of the circular guide groove, when the cylinder rotates, the ball bearings can roll, and the cylinder is supported by rolling. Since both the top and the bottom of the cylinder are supported, the cylinder drives the round roller and the brush to rotate smoothly, so that the grinding is accurate.
[0012] Preferably, the feeding mechanism includes a rotating workbench. The central axis at the bottom of the rotating workbench is rotatably installed in the middle of the top of the machine body. Roller supports are installed at the side of the bottom of the rotating workbench. A circular guide groove is opened at the side of the top of the rotating workbench. A feeding table is fixedly connected to the top of the rotating workbench, and the feeding table is installed inside the circular guide groove. Limit pin shafts are fixedly connected to the side of the top of the feeding table. An inner support assembly is installed in the middle of the top of the feeding table. By inserting the limit pin shafts into the round holes on the side of the hub surface, the hub can be preliminarily limited and is not likely to deviate. At the same time, by rotating the rotating workbench, the hub can be loaded. The feeding platform is evenly distributed on the top of the rotating workbench, facilitating the placement of multiple hubs, contributing to continuous feeding of the hubs, and promoting batch processing of the hubs.
[0013] Preferably, the feeding platform is circular, and the center of the feeding platform coincides with the center of the circular guide groove. The roller supports are evenly distributed on the side of the bottom of the rotating workbench.
[0014] Preferably, the inner support assembly includes a chute and a convex-shaped slider. The chute is opened on the top of the feeding platform. The convex-shaped slider is slidably installed on the top of the feeding platform through the chute. The top end of the convex-shaped slider is fixedly connected with an inner support bar. The middle of the surface of the inner support bar and the middle of the surface of the convex-shaped slider are both fixedly connected with a return spring. By passing the inner support bar through the central hole of the hub, as the cylinder moves downward, the pressure rod and the spherical pressing block move downward together. Using the spherical surface at the bottom of the spherical pressing block to contact the edge of the top of the inner support bar, the inner support bar is subjected to an outward driving force. Under the sliding connection of the convex-shaped slider, the inner support bar and the convex-shaped slider move outward along the chute together, and the return spring is stretched. By fitting the surface of the inner support bar with the inner wall of the hub central hole, the hub can be fixed and is not prone to skew.
[0015] Preferably, there are three inner support bars, and the three inner support bars are evenly distributed on the top of the feeding platform. The surface of the convex-shaped slider fits with the inner wall of the chute.
[0016] The beneficial effects of the embodiments of the present disclosure are as follows: First, for this pulley and its processing equipment, the bushing is installed and fixed to the end of the output shaft of an external device through a keyway. Using the cooperation between the semi-circular clamping strip and the semi-circular strip-shaped groove, the hub is installed on the surface of the bushing. And under the overall fixation of the fixing module, the hub and the bushing are assembled into an integral body. Using the cooperation between the semi-circular clamping strip and the semi-circular strip-shaped groove to increase the contact area helps the hub and the bushing rotate together to transmit power. When the hub needs to be replaced, just loosen the fixing module, and the whole hub can be removed. With the cooperative installation of the hub and the bushing, the disassembly and assembly of the hub are convenient, and heating and heavy knocking will not damage the hub.
[0017] Second, for this pulley and its processing equipment, by screwing the threaded column between the hub and the bushing, the hub can be preliminarily fixed. Threading the first nut with the threaded column can fix it again without loosening. And threading the second nut with the threaded column makes the conical extension ring embed into the annular conical inclined surface opened on the surface of the first nut, thereby locking the first nut and achieving self-locking, and it is not prone to thread withdrawal.
[0018] III. For this pulley and its processing equipment, by extending and contracting the output end of the hydraulic cylinder, the three-jaw support can be driven to move downward and upward, causing the entire cylinder and the brush to move together, thereby adjusting the height of the entire cylinder and the brush, adjusting the brush, and facilitating subsequent grinding of the hub surface.
[0019] IV. For this pulley and its processing equipment, the circular roller is driven to rotate by the driver at the top of the cylinder, causing the brush to rotate. By using the self-rotation of the brush, the surface of the hub can be ground. At the same time, by using the rotation of the output end of the servo motor and being supported by the three-jaw support, the cylinder is driven to rotate by the output end of the servo motor, causing the entire circular roller and the brush to rotate together. The brush forms a revolution along the axis of the cylinder. By making the rotation direction of the brush self-rotation opposite to that of the cylinder, it can further promote uniform grinding of the hub surface, and through rotary grinding, abrasions are not likely to occur.
[0020] V. For this pulley and its processing equipment, by making the balls at the bottom of the cylinder fit with the bottom of the inner cavity of the circular guide groove, when the cylinder rotates, the balls can roll, and the cylinder is supported by rolling. By being supported at both the top and bottom of the cylinder, the cylinder can drive the circular roller and the brush to rotate smoothly, making the grinding accurate.
[0021] VI. For this pulley and its processing equipment, by inserting the limit pin shaft into the round hole on the side of the hub surface, the hub can be initially limited, and deviation is not likely to occur. At the same time, by rotating the rotating workbench, the hub can be loaded, and by evenly distributing the loading table on the top of the rotating workbench, it is convenient to place multiple hubs, which helps to continuously load the hubs and promotes batch processing of the hubs.
[0022] VII. For this pulley and its processing equipment, by making the spherical surface at the bottom of the spherical pressing block contact the edge of the top of the inner support bar, the inner support bar is subjected to an outward pushing force, and under the sliding connection of the convex-shaped slider, the inner support bar and the convex-shaped slider move outward along the chute together, and the reset tension spring is stretched. By making the surface of the inner support bar fit with the inner wall of the hub center hole, the hub can be fixed, and skewing is not likely to occur. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description in the embodiments of the present disclosure. Obviously, the following drawings are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the exemplary embodiments of the present disclosure and these drawings.
[0024] Figure 1Schematic structural diagram of the pulley as a whole of the present invention; Figure 2 Schematic split structural diagram of the pulley of the present invention; Figure 3 Schematic split structural diagram of the fixing module of the present invention; Figure 4 Schematic overall structural diagram of the pulley processing equipment of the present invention; Figure 5 Schematic bottom view structural diagram of the pulley processing equipment of the present invention; Figure 6 Schematic connection structural diagram between the grinding mechanism and the gantry of the present invention; Figure 7 Schematic overall structural diagram of the grinding mechanism of the present invention; Figure 8 Schematic connection structural diagram between the feeding mechanism and the machine body of the present invention; Figure 9 Schematic overall structural diagram of the feeding mechanism of the present invention; Figure 10 For the present invention Figure 9 Partial enlarged view at A in
[0025] In the figure: 1. Pulley assembly; 2. Grinding equipment; 11. Hub; 12. Bush; 13. Semi-circular strip-shaped groove; 14. Semi-circular clamping strip; 15. Keyway; 16. Fixing module; 161. Threaded column; 162. First nut; 163. Second nut; 164. Conical extension ring; 21. Machine body; 22. Gantry; 23. Feeding mechanism; 24. Grinding mechanism; 231. Rotating workbench; 232. Roller support; 233. Circular guide groove; 234. Feeding table; 235. Limit pin; 236. Inner support assembly; 2361. Chute; 2362. T-shaped slider; 2363. Inner support bar; 2364. Return spring; 241. Hydraulic cylinder; 242. Three-jaw holder; 243. Cylinder; 244. Ball; 245. Servo motor; 246. Round roller; 247. Brush; 248. Pressing rod; 249. Spherical pressing block. Detailed implementation manners
[0026] The following further elaborates the present disclosure in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than limiting the present disclosure.
[0027] For the sake of simplicity of the drawings, only the parts related to the disclosure are schematically shown in each drawing, and they do not represent the actual structure of the product as a whole. Additionally, for the sake of simplicity and ease of understanding of the drawings, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is labeled. In this text, "one" not only means "only this one", but can also mean "more than one" situation, and "several" includes "two" and "more than two".
[0028] In this text, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "joined" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific situations.
[0029] In this disclosure, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature can include the direct contact between the first and second features, or can also include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0030] In the description of this embodiment, the orientation or positional relationships such as "up", "down", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component 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 this disclosure.
[0031] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0032] Embodiment 1 As Figures 1 to 3 shown, it shows a pulley in an embodiment of the present disclosure, including: A pulley assembly 1, and the pulley assembly 1 is used for outputting and transmitting power; Among them, the pulley assembly 1 includes a hub 11 and a bushing 12. The bushing 12 is embedded inside the hub 11. A semi-circular strip-shaped groove 13 is provided on the inner wall of the hub 11. A semi-circular clamping strip 14 is fixedly connected to the outer circular surface of the bushing 12. The semi-circular clamping strip 14 is embedded inside the semi-circular strip-shaped groove 13. A keyway 15 is provided on the inner wall of the bushing 12. A fixing module 16 is installed between the inner wall of the hub 11 and the outer circular surface of the bushing 12. During installation, the bushing 12 is installed and fixed to the end of the output shaft of an external device through the keyway 15, and the semi-circular clamping strip 14 is embedded inside the semi-circular strip-shaped groove 13. By using the cooperation between the semi-circular clamping strip 14 and the semi-circular strip-shaped groove 13, the hub 11 is installed on the surface of the bushing 12. And under the overall fixation of the fixing module 16, the hub 11 and the bushing 12 are assembled into one piece. Moreover, by using the cooperation between the semi-circular clamping strip 14 and the semi-circular strip-shaped groove 13 to increase the contact area, it helps the hub 11 and the bushing 12 to rotate together to transmit power. When the hub 11 needs to be replaced, only the fixing module 16 needs to be loosened, and then the whole hub 11 can be removed. The installation and disassembly of the hub 11 are convenient by using the cooperation between the hub 11 and the bushing 12.
[0033] There are three semi-circular strip-shaped grooves 13, and the three semi-circular strip-shaped grooves 13 are evenly distributed on the inner wall of the hub 11. There are three semi-circular clamping strips 14, and the three semi-circular clamping strips 14 are evenly distributed on the outer circular surface of the bushing 12.
[0034] The fixing module 16 includes a threaded column 161. The threaded column 161 is fixedly installed by internal threads on the inner wall of the hub 11 and the outer circular surface of the bushing 12. A first nut 162 and a second nut 163 are sequentially threadedly installed at the threaded groove on the surface of the threaded column 161. A conical extension ring 164 is fixedly connected to the surface of the second nut 163. A ring-shaped conical inclined surface adapted to the conical extension ring 164 is provided on the surface of the first nut 162. And the conical extension ring 164 is installed between the second nut 163 and the first nut 162. By screwing the threaded column 161 between the hub 11 and the bushing 12, the hub 11 can be preliminarily fixed. And by threadedly mating the first nut 162 with the threaded column 161, it can be fixed again without loosening. Moreover, by threadedly mating the second nut 163 with the threaded column 161, the conical extension ring 164 is embedded into the ring-shaped conical inclined surface provided on the surface of the first nut 162, and then the first nut 162 can be locked.
[0035] There are three threaded columns 161, and the three threaded columns 161 are evenly distributed between the inner wall of the hub 11 and the outer circular surface of the bushing 12. The central axis of the conical extension ring 164 coincides with the central axis of the second nut 163.
[0036] Embodiment 2 As Figures 1 to 10As shown, it shows a pulley processing device in another embodiment of the present disclosure, including: A grinding device 2 that grinds the pulley groove on the surface of the hub 11; Among them, the grinding device 2 includes a machine body 21 and a gantry 22. The gantry 22 is fixedly installed on the side of the top of the machine body 21. A feeding mechanism 23 is installed in the middle of the top of the machine body 21, and a grinding mechanism 24 is installed in the middle of the top of the gantry 22; The grinding mechanism 24 includes a hydraulic cylinder 241 and a three-jaw holder 242. The hydraulic cylinder 241 is fixedly installed on the top of the gantry 22. The top of the three-jaw holder 242 is fixedly connected to the telescopic end of the hydraulic cylinder 241. A cylinder 243 is rotatably installed at the bottom of the three-jaw holder 242. A ball 244 is rollably installed at the edge of the bottom of the cylinder 243. A servo motor 245 is fixedly installed in the middle of the top of the three-jaw holder 242. The output end of the servo motor 245 is fixedly connected to the top of the cylinder 243 through a coupling. A round roller 246 is installed inside the cylinder 243. A brush 247 is fixedly connected to the outer circumferential surface of the round roller 246. A pressure rod 248 is fixedly installed at the top of the inner cavity of the cylinder 243. A spherical pressing block 249 is rotatably installed at the bottom of the pressure rod 248. When the staff turns on the hydraulic cylinder 241 to work, by using the elongation and contraction of the output end of the hydraulic cylinder 241, the three-jaw holder 242 can be driven to move downward and upward, so that the whole cylinder 243 and the brush 247 are driven to move together, thereby adjusting the height of the whole cylinder 243 and the brush 247 and adjusting the brush 247.
[0037] The round rollers 246 are evenly distributed inside the cylinder 243, the brushes 247 are evenly distributed on the outer circumferential surface of the round rollers 246, and the balls 244 are evenly distributed at the edge of the bottom of the cylinder 243. The round rollers 246 are driven to rotate by a driver at the top of the cylinder 243, so that the brushes 247 are driven to rotate. By using the self-rotation of the brushes 247, the surface of the hub 11 can be ground. At the same time, the staff turns on the servo motor 245 to work. By using the rotation of the output end of the servo motor 245 and supported by the three-jaw holder 242, the cylinder 243 is driven to rotate by the output end of the servo motor 245, so that the whole round rollers 246 and the brushes 247 are driven to rotate. The brushes 247 revolve along the axis of the cylinder 243. By making the rotation direction of the self-rotation of the brushes 247 opposite to the rotation of the cylinder 243, the surface of the hub 11 can be evenly ground.
[0038] The elongation of the output end of the hydraulic cylinder 241 drives the cylinder 243 to move downward. By making the ball 244 at the bottom of the cylinder 243 fit with the bottom of the inner cavity of the circular guide groove 233, when the cylinder 243 rotates, the ball 244 can roll, and the cylinder 243 is supported by rolling. Since both the top and bottom of the cylinder 243 are supported, the cylinder 243 drives the round roller 246 and the brush 247 to rotate smoothly.
[0039] The feeding mechanism 23 includes a rotating workbench 231. The central axis at the bottom of the rotating workbench 231 is rotatably installed at the middle of the top of the machine body 21. A roller support 232 is installed at the side of the bottom of the rotating workbench 231. A circular guide groove 233 is formed at the side of the top of the rotating workbench 231. A feeding table 234 is fixedly connected to the top of the rotating workbench 231, and the feeding table 234 is installed inside the circular guide groove 233. A limit pin 235 is fixedly connected to the side of the top of the feeding table 234. An inner support assembly 236 is installed at the middle of the top of the feeding table 234. The hub 11 is placed flat on the top of the feeding table 234, and by inserting the limit pin 235 into the circular hole at the side of the surface of the hub 11, the hub 11 can be preliminarily positioned and is not likely to deviate. At the same time, by rotating the rotating workbench 231, the hub 11 can be fed. And since the feeding table 234 is evenly distributed on the top of the rotating workbench 231, it is convenient to place multiple hubs 11, which helps to continuously feed the hubs 11.
[0040] The feeding table 234 is circular, and the center of the feeding table 234 coincides with the center of the circular guide groove 233. The roller supports 232 are evenly distributed at the side of the bottom of the rotating workbench 231.
[0041] The inner support assembly 236 includes a chute 2361 and a convex-shaped slider 2362. The chute 2361 is formed at the top of the feeding table 234. The convex-shaped slider 2362 is slidably installed on the top of the feeding table 234 through the chute 2361. An inner support bar 2363 is fixedly connected to the top of the convex-shaped slider 2362. Return springs 2364 are fixedly connected to the middle of the surface of the inner support bar 2363 and the middle of the surface of the convex-shaped slider 2362. By passing the inner support bar 2363 through the central hole of the hub 11, as the cylinder 243 moves downward, the pressure rod 248 and the spherical pressing block 249 move downward together. By making the spherical surface at the bottom of the spherical pressing block 249 contact the edge of the top of the inner support bar 2363, the inner support bar 2363 is pushed outward, and under the sliding connection of the convex-shaped slider 2362, the inner support bar 2363 and the convex-shaped slider 2362 move outward along the chute 2361 together, and the return spring 2364 is stretched. By making the surface of the inner support bar 2363 fit with the inner wall of the central hole of the hub 11, the hub 11 can be fixed.
[0042] There are three inner support bars 2363, and the three inner support bars 2363 are evenly distributed on the top of the feeding table 234. The surface of the convex-shaped slider 2362 is in contact with the inner wall of the sliding groove 2361.
[0043] During use, first, the manipulator of an external device places the wheel hub 11 flat on the top of the feeding table 234, and inserts the limit pin shaft 235 into the round hole on the side of the surface of the wheel hub 11, so as to preliminarily limit the wheel hub 11. At the same time, the inner support bar 2363 passes through the central hole of the wheel hub 11. By rotating the rotating workbench 231, the wheel hub 11 can be loaded. The feeding table 234 is evenly distributed on the top of the rotating workbench 231, which is convenient for placing multiple wheel hubs 11 and helps to continuously load the wheel hubs 11. When the wheel hub 11 rotates to directly below the cylinder 243, the rotation of the rotating workbench 231 can be paused, so that the wheel hub 11 stops moving. At this time, the staff starts the hydraulic cylinder 241 to work. By the elongation of the output end of the hydraulic cylinder 241, the three-jaw support 242 is driven to move downward, so that the whole cylinder 243 and the brush 247 are driven to move together, thereby adjusting the height of the whole cylinder 243 and the brush 247 and adjusting the brush 247. As the cylinder 243 moves downward, the pressure rod 248 and the spherical pressing block 249 move downward together. The spherical surface at the bottom of the spherical pressing block 249 contacts the edge of the top of the inner support bar 2363, so that the inner support bar 2363 receives an outward driving force. Under the sliding connection of the convex-shaped slider 2362, the inner support bar 2363 and the convex-shaped slider 2362 move outward along the sliding groove 2361 together, and the reset tension spring 2364 is stretched. By the surface of the inner support bar 2363 being in contact with the inner wall of the central hole of the wheel hub 11, the wheel hub 11 can be fixed. And the round roller 246 is driven to rotate by the driver at the top of the cylinder 243, so that the brush 247 is driven to rotate. By the self-rotation of the brush 247, the surface of the wheel hub 11 can be polished. At the same time, the staff starts the servo motor 245 to work. By the rotation of the output end of the servo motor 245 and under the support of the three-jaw support 242, the cylinder 243 is driven to rotate by the output end of the servo motor 245, so that the whole round roller 246 and the brush 247 rotate together. The brush 247 makes a revolution along the axis of the cylinder 243. By the self-rotation of the brush 247 and the rotation direction of the cylinder 243 being opposite, the surface of the wheel hub 11 can be evenly polished. Moreover, the elongation of the output end of the hydraulic cylinder 241 drives the cylinder 243 to move downward. By making the ball 244 at the bottom of the cylinder 243 fit with the bottom of the inner cavity of the circular guide groove 233, when the cylinder 243 rotates, the ball 244 can roll, and the cylinder 243 is supported by rolling. Since both the top and bottom of the cylinder 243 are supported, the cylinder 243 drives the round roller 246 and the brush 247 to rotate smoothly. After the hub 11 is polished, the hydraulic cylinder 241 can be activated again. By contracting the telescopic end of the hydraulic cylinder 241, the cylinder 243 can be driven to move upward, so that the cylinder 243 and the brush 247 are separated from the hub 11. Moreover, the driving force of the spherical pressing block 249 on the top end of the inner support bar 2363 disappears. Under the elastic tension of the reset tension spring 2364, the inner support bar 2363 slides inward. Then, the rotating workbench 231 is activated again to rotate, and the polished hub 11 is moved out from directly below the cylinder 243, facilitating the removal of the hub 11 by the manipulator of external equipment. When using the pulley, by screwing the threaded column 161 between the hub 11 and the bushing 12, the hub 11 can be preliminarily fixed. Then, by threadedly mating the first nut 162 with the threaded column 161, it can be fixed again without loosening. Moreover, by threadedly mating the second nut 163 with the threaded column 161, the conical extension ring 164 is embedded into the annular conical inclined surface formed on the surface of the first nut 162, thereby locking the first nut 162. During installation, the bushing 12 is installed and fixed to the end of the output shaft of external equipment through the keyway 15. The semi-circular clamping strip 14 is inserted into the semi-circular bar-shaped groove 13. With the cooperation between the semi-circular clamping strip 14 and the semi-circular bar-shaped groove 13, the hub 11 is installed on the surface of the bushing 12. Under the overall fixation of the fixing module 16, the hub 11 and the bushing 12 are assembled into one unit. By the cooperation between the semi-circular clamping strip 14 and the semi-circular bar-shaped groove 13, the contact area is increased, which helps the hub 11 and the bushing 12 to rotate together for power transmission. When the hub 11 needs to be replaced, only by loosening the fixing module 16, the entire hub 11 can be removed. With the cooperation between the hub 11 and the bushing 12 for installation, the disassembly and assembly of the hub 11 are convenient.
[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit them. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.
Claims
1. A pulley, characterized in that, Comprising: A pulley assembly (1) for outputting and transmitting power. Wherein, the pulley assembly (1) includes a hub (11) and a bushing (12). The bushing (12) is embedded inside the hub (11). A semi-circular strip-shaped groove (13) is formed on the inner wall of the hub (11). A semi-circular clamping strip (14) is fixedly connected to the outer circular surface of the bushing (12). The semi-circular clamping strip (14) is embedded inside the semi-circular strip-shaped groove (13). A keyway (15) is formed on the inner wall of the bushing (12). A fixing module (16) is installed between the inner wall of the hub (11) and the outer circular surface of the bushing (12).
2. A pulley according to claim 1, characterized in that: There are three semi-circular strip-shaped grooves (13), and the three semi-circular strip-shaped grooves (13) are evenly distributed on the inner wall of the hub (11). There are three semi-circular clamping strips (14), and the three semi-circular clamping strips (14) are evenly distributed on the outer circular surface of the bushing (12).
3. A pulley according to claim 1, wherein: The fixing module (16) includes a threaded column (161). The threaded column (161) is threadedly and fixedly installed on the inner wall of the hub (11) and the outer circular surface of the bushing (12) through internal threads. A first nut (162) and a second nut (163) are sequentially threadedly installed at the threaded groove on the surface of the threaded column (161). A conical extension ring (164) is fixedly connected to the surface of the second nut (163). A ring-shaped conical inclined surface adapted to the conical extension ring (164) is formed on the surface of the first nut (162), and the conical extension ring (164) is installed between the second nut (163) and the first nut (162).
4. A pulley according to claim 3, characterized in that: There are three threaded columns (161), and the three threaded columns (161) are evenly distributed between the inner wall of the hub (11) and the outer circular surface of the bushing (12). The central axis of the conical extension ring (164) coincides with the central axis of the second nut (163).
5. A belt pulley processing device, characterized in that, Comprising: A grinding device (2) for grinding the belt groove on the surface of the hub (11). Wherein, the grinding device (2) includes a machine body (21) and a gantry (22). The gantry (22) is fixedly installed at the side of the top of the machine body (21). A feeding mechanism (23) is installed at the middle of the top of the machine body (21). A grinding mechanism (24) is installed at the middle of the top of the gantry (22). The grinding mechanism (24) includes a hydraulic cylinder (241) and a three-jaw holder (242). The hydraulic cylinder (241) is fixedly installed at the top of the gantry (22). The top of the three-jaw holder (242) is fixedly connected to the telescopic end of the hydraulic cylinder (241). A cylinder (243) is rotatably installed at the bottom end of the three-jaw holder (242). Ball rollers (244) are rotatably installed at the edge of the bottom of the cylinder (243). A servo motor (245) is fixedly installed at the middle of the top of the three-jaw holder (242). The output end of the servo motor (245) is fixedly connected to the top of the cylinder (243) through a coupling. A round roller (246) is installed inside the cylinder (243). A brush (247) is fixedly connected to the outer circumferential surface of the round roller (246). A pressure rod (248) is fixedly installed at the top of the inner cavity of the cylinder (243). A spherical pressing block (249) is rotatably installed at the bottom end of the pressure rod (248).
6. The pulley processing equipment according to claim 5, characterized in that: The round rollers (246) are evenly distributed inside the cylinder (243). The brushes (247) are evenly distributed on the outer circumferential surface of the round rollers (246). The ball rollers (244) are evenly distributed at the edge of the bottom of the cylinder (243).
7. A pulley processing device according to claim 5, characterized in that: The feeding mechanism (23) includes a rotating workbench (231). The central axis at the bottom of the rotating workbench (231) is rotatably installed at the middle of the top of the machine body (21). Roller supports (232) are installed at the side of the bottom of the rotating workbench (231). A circular guide rail groove (233) is formed at the side of the top of the rotating workbench (231). A feeding table (234) is fixedly connected to the top of the rotating workbench (231), and the feeding table (234) is installed inside the circular guide rail groove (233). Limit pin shafts (235) are fixedly connected to the side of the top of the feeding table (234). An inner support assembly (236) is installed at the middle of the top of the feeding table (234).
8. A pulley processing device according to claim 7, characterized in that: The feeding table (234) is circular, and the center of the feeding table (234) coincides with the center of the circular guide rail groove (233). The roller supports (232) are evenly distributed at the side of the bottom of the rotating workbench (231).
9. A pulley processing device according to claim 7, characterized in that: The inner support assembly (236) includes a chute (2361) and a convex-shaped slider (2362). The chute (2361) is formed at the top of the feeding table (234). The convex-shaped slider (2362) is slidably installed on the top of the feeding table (234) through the chute (2361). An inner support bar (2363) is fixedly connected to the top end of the convex-shaped slider (2362). Return tension springs (2364) are fixedly connected to the middle of the surface of the inner support bar (2363) and the middle of the surface of the convex-shaped slider (2362).
10. A pulley processing device according to claim 9, characterized in that: There are three inner support bars (2363), and the three inner support bars (2363) are evenly distributed at the top of the feeding table (234). The surface of the convex-shaped slider (2362) fits against the inner wall of the chute (2361).