Intelligent centering electric tire loader

Abstract

The utility model discloses a kind of intelligent centering electric tire loader, it is related to automobile maintenance equipment technical field, including wheel frame, lifting mechanism, positioning mechanism and control mechanism;Horizontal wheel position is provided on wheel frame, to provide the support force to tire peripheral side;Wheel frame is set on lifting mechanism, is driven by lifting mechanism, follow-up does along vertical direction's lifting movement, and wheel frame is movably connected with lifting mechanism, with the motion ability of along the horizontal reciprocating translation of the axial direction of tire to be loaded;Positioning mechanism is independent of wheel frame, with the ability of calculating the relative height of tire hub on wheel position;Control mechanism and lifting mechanism and positioning mechanism are electrically connected, with the ability of reading and analyzing ranging data of positioning mechanism and controlling lifting mechanism lifting action accordingly;The tire loader of the utility model adopts electronic sensing device to replace human eye visual judgment, can accurately calculate the axial height of tire, and control lifting mechanism, carry out height accurate automatic lifting to tire.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair equipment technology, specifically to an intelligent electric tire-mounting device. Background Technology

[0002] Existing tire lifters are cylinder-based. During cylinder-driven operation, unstable air pressure can cause fluctuations, resulting in an uneven lifting process. Small repair shops often lack sufficient air pressure to lift larger, heavier tires. Furthermore, the tire sizes handled at repair shops vary constantly, requiring manual adjustment of the tire's position relative to the balancing machine. This relies on the operator's experience and visual judgment, leading to inconsistent results and potential damage to the rim or tire during transport to the balancing machine. Additionally, traditional cylinder-based tire lifters use a single linear speed adjustment mechanism, unable to adjust speed at different stages of lifting or provide speed limiting protection. This inability to respond promptly to rapid speed fluctuations poses a safety hazard. Therefore, there is an urgent need for an automatic, precise, intelligent, and automated tire lifter. Utility Model Content

[0003] To address the problems mentioned in the background section regarding the poor adaptability, low centering accuracy, reliance on manual experience, and low degree of automation of existing tire mounting devices, an intelligent electric tire mounting device with centering capability is proposed to achieve high-precision automatic tire centering.

[0004] This utility model discloses an intelligent electric tire-mounting device, comprising a wheel frame, a lifting mechanism, a positioning mechanism, and a control mechanism. The wheel frame has a horizontal wheel mounting position to provide support for the tire's circumference. The wheel frame is mounted on the lifting mechanism and driven by it, moving vertically up and down. The wheel frame is movably connected to the lifting mechanism and has the ability to reciprocate horizontally along the axis of the loaded tire. The positioning mechanism is independent of the wheel frame and has the ability to calculate the relative height of the tire's center at the wheel mounting position. The control mechanism is electrically connected to the lifting mechanism and the positioning mechanism, and has the ability to read and analyze the distance measurement data from the positioning mechanism and control the lifting mechanism's lifting action accordingly.

[0005] As a further improvement of this utility model, the positioning mechanism is located directly above the wheel position, and its detection end is directly opposite the middle of the wheel position below.

[0006] As a further improvement of this utility model, the lifting mechanism includes a platform, a base frame, a cross arm, and a driving device; the platform is arranged parallel above the base frame, and the cross arm is movably connected between the two; the output end of the driving device is connected to the beam arm of the cross arm, and has the ability to drive the cross arm to change the opening and closing angle; the distance between the platform connected to the cross arm and the base frame changes dynamically according to the increase or decrease of the opening and closing angle.

[0007] As a further improvement of this utility model, a fixed inclined rail extending upward is fixedly installed on the base frame, and the fixed inclined rail and the beam arm of the cross arm are spatially misaligned and intersected; the output end of the drive device extends transversely within the movable spatial intersection angle formed by the fixed inclined rail and the beam arm, and the movement of the output end of the drive device has the ability to drive the spatial intersection point of the fixed inclined rail and the beam arm to move, and the opening and closing angle of the beam arm of the cross arm changes accordingly with the movement of the spatial intersection point.

[0008] As a further improvement of this utility model, a movable inclined rail is fixedly connected to the horizontal side of the cross arm. The movable inclined rail and the fixed inclined rail are also spatially misaligned and intersecting, and the slope height of the end of the two near the spatial intersection point is higher than that of the other side.

[0009] As a further improvement of this utility model, at least one of the fixed inclined rail and the moving inclined rail has a braking end at the maximum end of the slope height, and the slope height of the braking end extends in a reverse direction, gradually decreasing.

[0010] As a further improvement of this utility model, the wheel frame includes a horizontal platform and a vertical support frame vertically arranged on one side of the horizontal platform. The wheel position is located in the middle of the horizontal platform and has a pair of support parts parallel to the central axis of the horizontal platform. The space of the support parts is perpendicular to the vertical plane where the vertical support frame is located.

[0011] As a further improvement of this utility model, the wheel placement position is in the shape of a horizontal groove, and its length extension direction is parallel to the central axis of the horizontal platform surface; the support parts on both sides of the wheel placement position extend upward and expand at the bottom of the groove to form a pair of outwardly inclined symmetrical walls.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The tire mounting device of this utility model uses an electronic sensing device to replace human visual judgment, which can accurately determine the axle height of tires of different sizes. Through the control mechanism to control the lifting mechanism, the tire can be automatically lifted with high precision, which facilitates the alignment of the tire with the balancing machine.

[0013] 2. The tire lifter of this utility model uses the principle of changing the spatial intersection point of the moving inclined rail and the fixed inclined rail on the cross arm to drive the cross arm. According to the geometric position relationship of the inclined surfaces of the moving inclined rail and the fixed inclined rail, the higher the lifting height, the smaller the actual lifting height that can be converted by the same distance of movement of the output end of the drive device. When the drive device outputs at a constant speed, the change in the actual lifting speed has variable speed adjustment characteristics, which facilitates precise positioning control when the tire is lifted close to the balancing machine.

[0014] 3. The inclined surfaces of the moving and fixed inclined rails are equipped with braking ends on the side near the spatial intersection point, which can limit the lifting speed when fluctuations occur and limit the lifting height. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the battery structure of the upper tire in Example 1; Figure 2 This is a schematic diagram of the upper tire wheel frame in Example 1; Figure 3 This is a schematic diagram of the wheel placement structure of the upper tire wheel frame in Example 1; Figure 4 This is a schematic diagram of the upper tire lifting mechanism in Example 1; Figure 5 This is a cross-sectional structural diagram of the operation of the upper tire lifting mechanism in Embodiment 1; Figure 6 This is a schematic diagram of the tire mounting positioning mechanism and control mechanism in Example 1; Figure 7 This is a schematic diagram of the tire loading mechanism in Example 1. Figure 8 This is a schematic diagram of the fixed inclined rail and the moving inclined rail in Example 2; Figure 9 This is a schematic diagram of the improved structure of the vertical support frame for the upper tire in Example 3; Figure 10 This is a side view of the improved structure of the vertical support frame for the upper tire in Example 3; 1. Wheel frame; 11. Horizontal platform; 111. Wheel position; 112. Support unit; 12. Vertical support frame; 2. Lifting mechanism; 21. Platform; 22. Base frame; 221. Fixed inclined rail; 23. Cross arm; 231. Moving inclined rail; 24. Drive device; 25. Braking end; 3. Positioning mechanism; 4. Control mechanism. Detailed Implementation Specific Implementation Example 1:

[0017] An intelligent electric tire-mounting device includes a wheel frame 1, a lifting mechanism 2, a positioning mechanism 3, and a control mechanism 4.

[0018] like Figure 2 and Figure 3 As shown, the wheel frame 1 includes a horizontal platform 11 and a vertical support 12. The upper surface of the horizontal platform 11 is recessed downwards, forming a horizontally extending groove from left to right as a wheel holder 111. The wheel holder 111 is symmetrical about the central vertical plane of the horizontal platform 11. The groove constituting the wheel holder 111 extends upwards from the bottom wall, forming a pair of spaced and separated symmetrical groove walls as a support part 112 for fixing the outer periphery of the tire. The distance between the two groove walls gradually increases, and the recessed groove has a structure that is smaller at the bottom and larger at the top. The vertical support 12 is vertically fixed to the right end of the horizontal platform 11. The vertical support 12 is a semi-enclosed annular structure with a side opening, in the shape of a C. The C-shaped opening of the vertical support 12 is located on the front side of the equipment. A horizontally extending handle is installed on the upper part of the C-shaped opening of the vertical support 12 for operation and gripping. An operating platform is provided on the upper part of the vertical support 12. When loading a tire, the side end face of the tire abuts against the side wall of the vertical support. A symmetrical sliding groove structure is provided on the lower side of the platform surface 11, and the extension direction of the sliding groove structure is parallel to the extension direction of the wheel position 111.

[0019] like Figures 2-5As shown, the lifting mechanism 2 includes a platform 21, a base frame 22, cross arms 23, and a drive device 24. The platform 21 is horizontally arranged, with a slide rail perpendicular to the side wall on both its front and rear sides. The horizontal platform surface 11 of the wheel frame 1 is arranged parallel to the upper side of the platform 21. The slide rails on both sides of the platform 21 and the sliding groove structure on the lower side of the horizontal platform surface 11 form a sliding engagement, giving the wheel frame 1 the ability to slide horizontally relative to the platform 21. The base frame 22, parallel to the platform 21, serves as a support base. A pair of cross arms 23 are provided between the platform 21 and the base frame 22 to movably connect the two. Each cross arm 23 consists of a pair of beam arms hinged in the middle. The right ends of the two beam arms are respectively hinged to the right end of the lower surface of the platform 21 and the right end of the upper surface of the base frame 22. Rollers are rotatably installed at the left ends of the two beam arms. The beam frame with one end hinged to the base frame 22 slides against the lower surface of the platform 21 at the other end; the beam frame with one end hinged to the lower surface of the platform 21 slides against the upper surface of the base frame 22 at the other end. When the angle between the two hinged ends on the right side of the cross arm 23 and their respective hinged surfaces increases, the opening angle between the left and right sides of the two beam arms of the cross arm 23 increases, the vertical height between the upper and lower ends of the cross arm 23 gradually increases, and the vertical distance between the platform 21 and the base frame 22 connected to the cross arm 23 also gradually increases accordingly, forming a movement effect of the platform 21 lifting upward and moving away from the base frame 22; conversely, it forms a movement effect of the platform 21 falling downward and moving closer to the base frame 22. A fixed inclined rail 221 is fixedly installed on the upper surface of the base frame 22. The fixed inclined rail 221 extends from left to right, and its upper end face extends upward from left to right, gradually approaching the hinge point between the right cross arm 23 and the base frame 22. Between the beam arms of the two pairs of cross arms 23 near the hinge point, a movable inclined rail 231 parallel to the beam arm extension direction is fixedly connected. The movable inclined rail 231 and the fixed inclined rail 221 are on different vertical planes. The thickness of the movable inclined rail 231 gradually increases from the side near the hinge point between the two beam arms of the cross arm 23 towards the hinge point between the beam arm and the base frame 22, causing the lower end face of the movable inclined rail 231 near the base frame 22 to form an inclined angle. The driving device 24 is a pusher cylinder. The left end of the pusher cylinder is hinged to the left side of the upper surface of the base frame 22. The push rod of the pusher cylinder faces the hinge point between the right side of the base frame 22 and the cross arm 23. The end of the push rod of the pusher cylinder has a drive roller with a horizontally extending central axis. The drive roller extends through the included angle space between the fixed inclined rail 221 and the moving inclined rail 231. The central axis of the drive roller is perpendicular to the side space of the fixed inclined rail 221 and the moving inclined rail 231. The wheel surface of the drive roller has a groove that is vertically corresponding to the fixed inclined rail 221 and the moving inclined rail 231. The upper inclined surface of the fixed inclined rail 221 and the lower inclined surface of the moving inclined rail 231 slide and abut with the concave wheel surface of the groove, respectively. The drive roller is clamped at the intersection of the space of the fixed inclined rail 221 and the moving inclined rail 231.The push rod of the electric push cylinder outputs linear motion. When the push rod extends, the drive roller at the end of the push rod always abuts against the inclined surfaces of both the fixed inclined rail 221 and the movable inclined rail 231, causing the spatial intersection point of the two to continuously move closer to the hinge point of the cross arm 23 and the base frame 22. This gradually increases the angle between the beam arm fixedly connected to the movable inclined rail 231 and the base frame 22, thereby gradually increasing the vertical distance between the upper and lower ends of the cross arm 23 and realizing the vertical upward translation of the platform 21. In particular, because the spatial angle between the inclined surfaces of the fixed inclined rail 221 and the movable inclined rail 231 continuously increases during the lifting process, and the higher the lifting height, the smaller the lifting amplitude of the wheel frame 1 that can be converted by the electric push cylinder extending the same distance, the more precise the resulting upward displacement is. This helps to accurately position the tire axle during the later stage of the tire lifting movement.

[0020] like Figure 6 and Figure 7 As shown, the lifting mechanism 2 has a column fixedly connected to the base frame 22 on its rear side, and a control device 4 is fixedly connected to the top of the column. The top of the column extends to the vertical space above the middle of the wheel frame 1. The positioning mechanism 3 is a laser rangefinder, which is fixed to the bottom of the control mechanism 4, vertically corresponding to the middle of the wheel position 111 of the wheel frame 1. The control mechanism 4 is electrically connected to the laser rangefinder and the electric push cylinder of the lifting mechanism 2. The control mechanism 4 is operated through an operating table set on the vertical support frame 12. The control mechanism 4 can calculate the center axle position of the tire based on the measurement data of the laser rangefinder and control the electric push cylinder to push the corresponding distance to achieve tire lifting and positioning.

[0021] Distance measurement centering principle: The laser rangefinder is positioned directly above the center of the wheel position 111. When the tire is mounted on the wheel position 111, the support parts 112 on both sides of the wheel position 111 support the circumference of the tire, positioning the tire's center axle directly below the laser rangefinder. The laser rangefinder then calculates the distance to the nearest point of the tire below to obtain the real-time height. The calculated height is the height of the highest point vertically corresponding to the tire's center axle. The control mechanism 4, which is electrically connected to the laser rangefinder, can calculate the tire's diameter based on the calculated tire's highest point height and the groove feature value of the wheel position 111. Combined with the original height of the wheel frame 1, the real-time height of the tire's center axle can be calculated. At this time, the control mechanism 4 controls the extension length of the push rod of the electric push cylinder, so that the tire's center axle matches and aligns with the height of the balancing machine's shaft. Specific Implementation Example 2:

[0023] Based on specific embodiment one, such as Figure 8 As shown, the fixed inclined rail 221 and the movable inclined rail 231 have a braking end 25 on the side near the hinge point of the cross arm 23 beam arm and the base frame 22, that is, at the point where the fixed inclined rail 221 and the movable inclined rail 231 have the greatest thickness. Figure 8(As shown by the thick line), the inclined surface at the braking end 25 extends in opposite directions, and the thickness of the fixed inclined rail 221 and the moving inclined rail 231 gradually decreases on the braking end 25 side. When the drive roller of the electric cylinder moves to the braking end 25 of the fixed inclined rail 221 and the moving inclined rail 231, it will stop expanding the angle between the beam arm of the cross wall 23 and the base frame 22 under the guidance of the inclined surface of the braking end 25, thereby achieving the braking effect of stopping the lifting and mechanically limiting the maximum lifting height. Specific Implementation Example 3:

[0025] Based on specific embodiments one or two, the structure of the vertical support 12 is modified, such as... Figure 9 and Figure 10 As shown, the upper and rear frames of the original C-shaped vertical support 12 are removed and replaced with a near-J-shaped structure. The improved vertical support 12 structure no longer has an upper frame obstructing it. The worktable, originally fixed to the upper frame, is moved and fixed to the front frame of the improved vertical support 12, thus forming a... Figure 10 The vertical movement space shown by the dashed line provides space for the balancing machine and subsequent operations to make way for it after the tires on wheel frame 1 are connected to the balancing machine in actual operation.

[0026] The above description is only a preferred embodiment of the present utility model and is intended to illustrate the principle and effect of the present utility model, and is not intended to limit the present utility model. All variations, modifications and substitutions within the spirit and principle of the present design are within the protection scope of the present utility model.

Claims

1. An intelligent electric tire-mounting device, characterized in that: It includes a wheel frame (1), a lifting mechanism (2), a positioning mechanism (3), and a control mechanism (4); A horizontal wheel mounting position (111) is provided on the wheel frame (1) to provide support for the tire circumference; the wheel frame (1) is mounted on the lifting mechanism (2) and driven by the lifting mechanism (2), and moves up and down in the vertical direction as it moves; the wheel frame (1) is movably connected to the lifting mechanism (2) and has the ability to move horizontally back and forth along the axis of the loaded tire. The positioning mechanism (3) is independent of the wheel frame (1) and has the ability to calculate the relative height of the tire center on the wheel position (111); The control mechanism (4) is electrically connected to the lifting mechanism (2) and the positioning mechanism (3), and has the ability to read and analyze the ranging data of the positioning mechanism (3) and control the lifting mechanism (2) to lift and lower accordingly.

2. The intelligent centering electric tire-mounting device according to claim 1, characterized in that: The positioning mechanism (3) is located directly above the wheel position (111), and its probe end is directly opposite the middle of the wheel position (111) below.

3. The intelligent centering electric tire-mounting device according to claim 1, characterized in that: The lifting mechanism (2) includes a platform (21), a base frame (22), a cross arm (23), and a drive device (24). The platform (21) is arranged parallel above the base frame (22), and the cross arm (23) is movably connected between the two. The output end of the drive device (24) is connected to the beam arm of the cross arm (23) and has the ability to drive the cross arm (23) to change the opening and closing angle. The distance between the platform connected to the cross arm (23) and the base frame changes dynamically according to the increase or decrease of the opening and closing angle.

4. The intelligent centering electric tire-mounting device according to claim 3, characterized in that: A fixed inclined rail (221) extending upward is fixedly installed on the base frame (22). The fixed inclined rail (221) and the beam arm of the cross arm (23) are spatially misaligned and intersected. The output end of the drive device (24) extends transversely within the movable spatial intersection angle formed by the fixed inclined rail (221) and the beam arm. The movement of the output end of the drive device (24) has the ability to drive the spatial intersection point of the fixed inclined rail (221) and the beam arm to move. The opening and closing angle of the beam arm of the cross arm (23) changes with the movement of the spatial intersection point.

5. The intelligent centering electric tire-mounting device according to claim 4, characterized in that: The horizontal side of the cross arm (23) is fixedly connected with a moving inclined rail (231). The moving inclined rail (231) and the fixed inclined rail (221) are also spatially misaligned and intersecting. The slope height of the two ends near the spatial intersection point is higher than that of the other side.

6. The intelligent centering electric tire-mounting device according to claim 5, characterized in that: At least one of the fixed inclined rail (221) and the moving inclined rail (231) has a braking end (25) at the maximum end of the slope height, and the slope height of the braking end (25) extends in a reverse direction and gradually decreases.

7. The intelligent centering electric tire-mounting device according to claim 1, characterized in that: The wheel frame (1) includes a horizontal platform (11) and a vertical support (12) vertically arranged on one side of the horizontal platform. The wheel position (111) is located in the middle of the horizontal platform (11) and has a pair of support parts (112) parallel to the central axis of the horizontal platform (11). The space of the support parts (112) is perpendicular to the vertical plane where the vertical support (12) is located.

8. The intelligent centering electric tire-mounting device according to claim 7, characterized in that: The wheel placement position (111) is in the shape of a horizontal groove, and its length extends parallel to the central axis of the horizontal platform surface (11). The support parts on both sides of the wheel placement position (111) extend upward and expand at the bottom of the groove to form a pair of outwardly inclined symmetrical walls.

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