Point card type multi-gear flexible magnetic disk

Abstract

An accommodating cavity is formed in a central guide column, a through hole is formed in the side wall of the central guide column, and a locking pin is arranged in the through hole; the gear adjusting sleeve is arranged outside the center guide column in a sleeving mode. The side wall, close to the center guide column, of the gear adjusting sleeve is provided with multiple sets of gear grooves. The side wall, away from the center guide column, of the gear adjusting sleeve is a conical surface, and an inclined groove is formed in the conical surface in the generatrix direction. The magnetic steel is distributed in the circumferential direction of the gear adjusting sleeve. One end of the transmission slider is in sliding fit with the chute, the other end of the transmission slider is connected with the magnetic steel, and the gear adjusting sleeve drives the transmission slider and the magnetic steel to radially move through axial movement to adjust the radius of the disk; the moving block is arranged in the containing cavity, an unlocking groove is formed in the moving block, and the moving block pushes the locking pin to be clamped into the gear groove by moving to the locking position in the axial direction. And at the unlocking position, the gear adjusting sleeve pushes the locking pin to be clamped into the unlocking groove through axial movement. Multi-gear quick locking and unlocking are achieved through cooperation of the locking pin, the gear groove and the unlocking groove.

Description

Technical Field

[0001] This application relates to the technical field of wheel hub induction heating equipment, and in particular to a point card type multi-level flexible disk. Background Technology

[0002] The core heating principle of the wheel hub induction heating equipment is as follows: a magnetic field is formed by an optimized arrangement of permanent magnets. When the permanent magnets rotate, a rotating magnetic field is generated. The wheel hub cuts the magnetic induction lines to form eddy currents and generate heat, thereby completing the heating of the wheel hub. The flexible disk is the core key component for realizing this heating process.

[0003] In existing technologies, the locking and shifting of flexible disks is cumbersome. With the increasing demand for wheel hub heating adaptation, the need for shifting gears is constantly increasing, which further increases the difficulty of locking and shifting operations of existing flexible disks. At the same time, the processing cost of parts is high, and the subsequent maintenance cost of the equipment is also high, which cannot meet the needs of efficient and convenient production and use. Summary of the Invention

[0004] This application provides a point-card type multi-position flexible disk to solve the technical problems of complex structure, cumbersome locking and shifting action, and high processing and maintenance costs of existing flexible disks. It realizes the rapid unlocking, adjustment and locking of multiple positions of the disk, accurately adapts to the inner diameter of different sizes of wheel hubs, and improves the flexibility of heating air gap adjustment to ensure the uniformity and efficiency of wheel hub heating.

[0005] This application provides a point card type multi-level flexible disk, including a central guide post, a level adjustment sleeve, a magnet, a transmission slider, and a moving block; A receiving cavity is formed inside the central guide post. A radially penetrating through hole is opened on the side wall of the central guide post, and a locking pin is installed in the through hole. The gear adjustment sleeve is sleeved outside the central guide post. Multiple gear slots are opened axially on the side wall of the gear adjustment sleeve near the central guide post. The gear adjustment sleeve can move the corresponding gear slot to the position opposite to the through hole by axial movement. The side wall of the gear adjustment sleeve away from the central guide post is a conical surface, and an inclined groove is opened on the conical surface along its generatrix. There are multiple sets of magnets distributed circumferentially along the gear adjustment sleeve. One end of the transmission slider slides in cooperation with the inclined groove, and the other end is connected to the corresponding magnet. The gear adjustment sleeve drives the transmission slider and magnet to move radially by axial movement to adjust the disk radius. The moving block is set in the receiving cavity. The moving block is provided with an unlocking groove. The moving block has a locked position and an unlocking position. The moving block pushes the locking pin into the gear slot by axial movement to the locked position. In the unlocking position, the gear adjustment sleeve pushes the locking pin into the unlocking groove by axial movement.

[0006] In one possible design, the locking pin has a first sliding portion and a second sliding portion formed at both ends, the length of the first sliding portion is greater than or equal to the depth of the gear position groove, and the length of the second sliding portion is greater than or equal to the depth of the unlocking groove; the axial movement of the gear position adjusting sleeve can push the first sliding portion out of the gear position groove radially and cause the second sliding portion to be inserted into the unlocking groove radially; the axial movement of the moving block can push the second sliding portion out of the unlocking groove radially and cause the first sliding portion to be inserted into the gear position groove radially.

[0007] In one possible design, the surfaces of the first sliding part and the second sliding part are respectively inclined, conical, or spherical.

[0008] In one possible design, the locking pin is a ball bearing. The spherical structure of the ball bearing can convert the sliding friction between the locking pin and the through hole, the gear position groove, and the unlocking groove into rolling friction, thereby reducing the friction between the locking pin and the through hole, the gear position groove, and the unlocking groove, and improving the smoothness of gear shifting.

[0009] In one possible design, the sum of the length of the through hole and the depth of the unlocking groove / positioning groove is equal to the total length of the locking pin. When the locking pin is a ball, the bottom of the unlocking groove and the positioning groove are both curved surfaces, and the sum of the length of the through hole and the depth of the unlocking groove / positioning groove is equal to the diameter of the ball. This size design can ensure that the locking pin can achieve stable engagement and sliding in both locked and unlocked states, avoiding jamming or loosening problems.

[0010] In one possible design, the point-card type multi-position flexible disk also includes a driving component, which is disposed in the accommodating cavity. The driving end of the driving component is connected to the moving block and is used to drive the moving block to move axially along the central guide post, providing power for the position switching of the moving block. Preferably, the driving component is a cylinder or an electric cylinder.

[0011] In one possible design, there are multiple through holes, which are evenly distributed circumferentially along the central guide post; unlocking slots are evenly distributed circumferentially along the moving block, and the moving block can move the unlocking slots to positions opposite to the through holes by axial movement; the same set of gear slots are evenly distributed circumferentially along the gear adjustment sleeve, and the gear adjustment sleeve can move a set of gear slots corresponding to the gear to positions opposite to the through holes by axial movement; the design of multiple sets of through holes, unlocking slots, and gear slots evenly distributed circumferentially can make the locking force of the disk evenly distributed, improve the stability of gear locking, and at the same time ensure the synchronicity of the radial movement of the magnet.

[0012] In one possible design, the point card type multi-level flexible disk also includes a base, with a central guide post fixedly installed on the base. A reset spring is provided between the base and the level adjustment sleeve. The reset spring extends and retracts to bring the level slots of different levels to the positions opposite to the through holes, providing power for the axial reset of the level adjustment sleeve and realizing rapid level switching.

[0013] In one possible design, a guide rail is provided on the base along the radial direction, and the transmission slider slides in cooperation with the guide rail. When the gear adjustment sleeve moves axially, the transmission slider slides in cooperation with the inclined groove and the guide rail respectively, thereby driving the magnet to move smoothly in the radial direction. The guide rail can limit the movement direction of the transmission slider, prevent the magnet from deviating when moving radially, and ensure the accuracy of disk radius adjustment.

[0014] In one possible design, a limit cover is provided on the upper end face of the central guide post. The edge of the limit cover protrudes from the central guide post to block the gear adjustment sleeve, prevent the gear adjustment sleeve from falling off the central guide post, and improve the stability of the equipment structure.

[0015] The beneficial effects of this application are as follows: The point card type multi-position flexible disk of this application realizes rapid locking and unlocking of multiple positions through the cooperation of locking pin, position slot and unlocking slot. The gear changing process is simplified, which effectively reduces the processing cost of parts and the maintenance cost of equipment, and solves the problem of cumbersome locking and gear changing in the prior art.

[0016] The axial movement of the gear adjustment sleeve drives the transmission slider and magnet to move radially, precisely adjusting the disk radius to accommodate different sizes of hub inner diameters. It also allows for flexible adjustment of the heating air gap between the magnet and the hub, enabling operators to control heating efficiency and production cycle according to specific production needs.

[0017] The locking pin is preferably a ball bearing, which, together with the unlocking groove and gear groove at the bottom of the arc-shaped groove, as well as the circumferentially evenly distributed through holes, unlocking groove and gear groove, effectively reduces the friction between components, improves the smoothness of gear switching and the stability of locking, and at the same time ensures the synchronicity of the radial movement of the magnet, making the wheel hub heating process more uniform and efficient, and further improving production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the point card type multi-level flexible disk provided in Embodiment 1 of this application; Figure 2 This is an assembly diagram of the point card type multi-level flexible disk provided in Embodiment 1 of this application; Figure 3 This is a cross-sectional view of the point card type multi-level flexible disk provided in Embodiment 1 of this application; Figure 4 This is a schematic diagram of the internal structure of the point card type multi-level flexible disk provided in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the locking pin structure of the point card type multi-level flexible disk provided in Embodiment 2 of this application.

[0020] Figure label: 1. Magnet; 2. Magnet base; 3. Transmission slider; 4. Base; 5. Return spring; 6. Gear adjustment sleeve; 601. Inclined groove; 602. Gear slot; 7. Drive component; 8. Moving block; 801. Unlocking slot; 9. Guide rail; 10. Locking pin; 101. First sliding part; 102. Second sliding part; 11. Central guide post; 111. Through hole; 112. Receiving cavity; 12. Limiting cover. Detailed Implementation

[0021] The technical solutions of this application will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Example 1: The following is combined with Figures 1-4 This describes the point card type multi-level flexible disk provided in the embodiments of this application.

[0023] The point-card type multi-position flexible disk provided in this application embodiment includes a central guide post 11, a position adjustment sleeve 6, a magnet 1, a transmission slider 3, a moving block 8, a driving component 7, and a base 4. A receiving cavity 112 is formed inside the central guide post 11, and ten radially penetrating through holes 111 are evenly opened along the circumference of the side wall of the central guide post 11. Each through hole 111 is provided with a locking pin 10.

[0024] In this embodiment, the locking pin 10 is a ball bearing with a diameter of 10 mm and a length of 5 mm for the through hole 111. Because the locking pin 10 uses a ball bearing, during unlocking and locking, the spherical structure of the ball bearing can convert some of the sliding friction between the locking pin 10 and the through hole 111, the gear position groove 602, and the unlocking groove 801 into rolling friction, thereby reducing the friction between the locking pin 10 and the through hole 111, the gear position groove 602, and the unlocking groove 801, and improving the smoothness of gear shifting.

[0025] The gear adjustment sleeve 6 is fitted outside the central guide post 11. Four sets of gear slots 602 are axially formed on the side wall of the gear adjustment sleeve 6 near the central guide post 11. Each set of gear slots 602 is an annular groove formed along the inner wall of the gear adjustment sleeve 6. The bottom of each annular groove is curved, and the depth is 5mm. The gear adjustment sleeve 6 can move axially to move the corresponding gear slot 602 to a position opposite to the through hole 111.

[0026] The sidewall of the gear adjustment sleeve 6 away from the central guide post 11 is a conical surface, such as a pyramid or cone, with a smaller top and larger bottom. Ten inclined grooves 601, like I-shaped grooves, are formed on the conical surface along its generatrix, evenly distributed around the circumference of the gear adjustment sleeve 6. Ten sets of magnets 1 are mounted on corresponding magnet seats 2, evenly distributed around the circumference of the gear adjustment sleeve 6, to form the magnetic field for hub induction heating. Ten transmission sliders 3 are also present, each with an I-shaped groove at one end that slides into the corresponding inclined groove 601, and the other end bolted to the corresponding magnet seat 2. The gear adjustment sleeve 6 moves axially, causing the transmission sliders 3 to slide along the inclined grooves 601, thereby moving the magnets 1 radially, thus adjusting the disk radius to accommodate different hub inner diameters.

[0027] In this embodiment, the accommodating cavity 112 is a cylindrical cavity, and the moving block 8 is a cylindrical block. The moving block 8 is disposed within the accommodating cavity 112, and the outer wall of the moving block 8 slides in contact with the inner wall of the cylindrical cavity. An unlocking groove 801 is provided circumferentially on the outer wall of the moving block 8. The unlocking groove 801 is an annular groove with an arc bottom and a depth of 5mm, so that the sum of the length of the through hole 111 of the moving block 8 and the depth of the unlocking groove 801 / position groove 602 is equal to the diameter of the ball, ensuring stable engagement and sliding of the ball.

[0028] The movable block 8 has a locked position and an unlocked position. The driving component 7 is an electric cylinder. A partition is provided in the accommodating cavity 112. The movable block 8 is located above the partition, and the electric cylinder is located below the partition. The output end of the electric cylinder passes through the central hole of the partition and is keyed to the movable block 8, which is used to drive the movable block 8 to move axially along the central guide post 11, thereby switching the movable block 8 between the locked and unlocked positions. When the unlocking groove 801 is opposite to the through hole 111, the movable block 8 is in the unlocked position; when the through hole 111 is blocked at a position other than the unlocking groove 801, the movable block 8 is in the locked position.

[0029] The base 4 has a disc-shaped structure, and the bottom of the central guide post 11 is coaxially fixed to the base 4 by bolts. A return spring 5 is provided between the base 4 and the gear adjustment sleeve 6. The lower end of the return spring 5 abuts against the bottom surface of the inner groove of the base 4, and the upper end of the return spring 5 abuts against the bottom surface of the gear adjustment sleeve 6, providing power for the axial return of the gear adjustment sleeve 6.

[0030] The top surface of the base 4 has ten guide rail mounting slots evenly distributed around its circumference. Each mounting slot is fixed with a guide rail 9 extending radially. The transmission slider 3 slides with the corresponding guide rail 9 to limit the movement direction of the transmission slider 3 and ensure the accuracy of the radial movement of the magnet 1.

[0031] A limit cover 12 is also coaxially fixed to the top of the central guide post 11 by bolts. The edge of the limit cover 12 protrudes from the outer wall of the central guide post 11 to block the gear adjustment sleeve 6 and prevent the gear adjustment sleeve 6 from falling off the central guide post 11.

[0032] A displacement sensor, such as a pull rope sensor, is also installed on the base 4 to detect the axial displacement of the gear adjustment sleeve 3, thereby collecting the radial movement of the magnet and determining whether the disk has moved to the target diameter.

[0033] The working process of the point-card type multi-level flexible disk in this embodiment is as follows: The downward-pressing cylinder, located directly above the disk in the hub induction heating device, moves downwards in a straight line until it abuts against the upper surface of the gear adjustment sleeve 6 and applies downward pressure to the sleeve, causing it to move downwards and align the first set of gear slots 602 on the sleeve with the through hole 111. At this point, the return spring 5 is compressed. The electric cylinder drives the moving block 8 to move axially upwards along the central guide post 11 to the locked position. The groove-free portion of the moving block 8 abuts against the ball, pushing it to move radially outwards along the through hole 111. Since the ball rolls during radial translation, intermittent jamming during sliding is effectively avoided. By smoothly disengaging the second sliding part 102 of the ball from the unlocking groove 801, the first sliding part 101 smoothly engages in the first set of gear grooves 602 on the gear adjustment sleeve 6, thereby locking the first gear and initializing the outer diameter of the disk. At this time, the disk is in the initial working state / first gear, which is suitable for heating the hub with the corresponding inner diameter.

[0034] When shifting gears, the electric cylinder drives the moving block 8 to move axially downwards along the central guide post 11 to the unlocked position, aligning the unlocking groove 801 of the moving block 8 with the through hole 111, thus placing the moving block 8 in the unlocked position. Simultaneously, the downward-pressing cylinder of the hub induction heating device releases pressure on the gear adjustment sleeve 6, causing the return spring 5 to rebound under elastic force and push the gear adjustment sleeve 6 axially upwards slightly. At this time, the inner wall of the gear adjustment sleeve 6 pushes the ball to move radially inwards along the through hole 111. Since the ball also rolls during radial translation, intermittent jamming during sliding is effectively avoided. By smoothly disengaging the first sliding part 101 of the ball from the first gear slot 602 and smoothly engaging the second sliding part 102 into the unlocking groove 801 of the moving block 8, the first gear is unlocked. Then, the downward cylinder of the wheel hub induction heating device presses down the gear adjustment sleeve 6, causing the gear adjustment sleeve 6 to move downward along the central guide post 11. The movement position of the gear adjustment sleeve 6 is detected by the pull rope displacement sensor until it reaches the target position, for example, the second set of gear slots 602 are aligned with the through hole 111. The displacement sensor feeds back the position signal to the wheel hub induction heating device. The electric cylinder drives the moving block 8 to move upward along the central guide post 11 to the locking position. The groove-less part of the moving block 8 abuts against the ball, pushing the ball to move radially outward along the through hole 111, so that the second sliding part 102 of the ball exits from the unlocking groove 801, and the first sliding part 101 is engaged in the second set of gear slots 602, realizing the locking of the second gear and the adjustment of the outer diameter of the disk. At this time, the disk is in the second gear, which is suitable for heating the wheel hub with the corresponding inner diameter.

[0035] By repeating the unlocking, gear switching, and locking process described above, multiple gears can be switched and locked sequentially. Each gear corresponds to a different disk radius, which can be adapted to wheel hubs with different inner diameters, thus achieving precise adjustment of the heating air gap between magnet 1 and the wheel hub.

[0036] Example 2: The difference between this embodiment and Embodiment 1 is that the locking pin 10 is a cylindrical structure, with the two ends of the locking pin 10 being a first sliding portion 101 and a second sliding portion 102, respectively. In this embodiment, both the first sliding portion 101 and the second sliding portion 102 are spherical surfaces. In other embodiments, the first sliding portion 101 and the second sliding portion 102 can also be conical or inclined surfaces. The through hole 111 is a cylindrical through hole 111 adapted to the cylindrical locking pin 10. The groove walls of the unlocking groove 801 and the position groove 602 are arc surfaces adapted to the spherical sliding portions. The remaining structure and working process are the same as in Embodiment 1, and can also realize multi-position quick locking, unlocking and adjustment.

[0037] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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 of this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A point-card type multi-level flexible disk, characterized in that, include: A central guide post has a cavity inside, and a radially penetrating through hole is provided on the side wall of the central guide post, with a locking pin installed in the through hole. A gear adjustment sleeve is fitted over the central guide post. Multiple gear slots are formed axially on the side wall of the gear adjustment sleeve near the central guide post. The gear adjustment sleeve can move the corresponding gear slot to a position opposite to the through hole by axial movement. The side wall of the gear adjustment sleeve away from the central guide post is a conical surface, and an inclined groove is formed on the conical surface along its generatrix direction. The magnets are in multiple sets and are distributed circumferentially along the gear adjustment sleeve; The transmission slider has one end slidingly engaged with the inclined groove and the other end connected to the corresponding magnet. The gear adjustment sleeve drives the transmission slider and the magnet to move radially through axial movement to adjust the disk radius. A movable block is disposed within the accommodating cavity. The movable block is provided with an unlocking groove. The movable block has a locked position and an unlocking position. When the movable block moves axially to the locked position, it pushes the locking pin into the gear slot. When the movable block is in the unlocking position, the gear adjusting sleeve moves axially to push the locking pin into the unlocking groove.

2. The point-card type multi-level flexible disk according to claim 1, characterized in that, The locking pin has a first sliding portion and a second sliding portion formed at both ends, the length of the first sliding portion is greater than or equal to the depth of the gear slot, and the length of the second sliding portion is greater than or equal to the depth of the unlocking slot. The axial movement of the gear adjustment sleeve can push the first sliding part to exit radially from the gear slot, and cause the second sliding part to be inserted radially into the unlocking slot; The axial movement of the moving block can push the second sliding part out radially from the unlocking groove and cause the first sliding part to be inserted radially into the gear slot.

3. The point-card type multi-level flexible disk according to claim 2, characterized in that, The surfaces of the first sliding part and the second sliding part are respectively inclined, conical, or spherical.

4. The point-card type multi-level flexible disk according to claim 3, characterized in that, The locking pin is a ball bearing.

5. The point-card type multi-position flexible disk according to any one of claims 1-4, characterized in that, The sum of the length of the through hole and the depth of the unlocking groove / the gear groove is equal to the total length of the locking pin.

6. The point-card type multi-level flexible disk according to claim 4, characterized in that, The bottom of both the unlocking groove and the gear shift groove is an arc surface, and the sum of the length of the through hole and the depth of the unlocking groove / gear shift groove is equal to the diameter of the ball.

7. The point-card type multi-level flexible disk according to claim 1, characterized in that, It also includes a driving component, which is disposed in the accommodating cavity. The driving end of the driving component is connected to the moving block and is used to drive the moving block to move axially along the central guide post.

8. The point-card type multi-level flexible disk according to claim 1, characterized in that, The through holes include multiple through holes, which are distributed circumferentially along the central guide post; The unlocking slots are distributed circumferentially along the moving block, and the moving block can move the unlocking slots to positions opposite to the through holes by moving along the axial direction. The same set of gear slots are distributed circumferentially along the gear adjustment sleeve. The gear adjustment sleeve can move along the axial direction to move the corresponding set of gear slots to the position opposite to the through hole.

9. The point-card type multi-level flexible disk according to claim 1, characterized in that, It also includes a base, the central guide post is mounted on the base, and a return spring is provided between the base and the gear adjustment sleeve. The return spring extends and retracts to bring the gear slots of different gears to the positions opposite to the through holes.

10. The point-card type multi-level flexible disk according to claim 9, characterized in that, The base is provided with a guide rail along the radial direction. The transmission slider is slidably engaged with the guide rail. When the gear adjustment sleeve moves axially, the transmission slider is slidably engaged with the inclined groove and the guide rail respectively, thereby driving the magnet to move radially. A limit cover is provided on the upper end face of the central guide post. The edge of the limit cover protrudes from the central guide post to block the gear adjustment sleeve and prevent the gear adjustment sleeve from falling off the central guide post.

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