A tire pressing device suitable for both solid and pneumatic tires.

Abstract

This invention relates to a tire pressing device suitable for both solid and pneumatic tires. A lifting cylinder is mounted on the pressing base plate, and a lifting fixture that mates with the rim surface is mounted on top of the lifting cylinder. A support body is mounted downwards on the pressing base plate, and multiple first and second pressing heads are evenly distributed circumferentially at the end of the support body. The first pressing heads correspond to the retaining ring position on the rim, and the second pressing heads correspond to the tire spokes. The lifting cylinder provides an upward force, with a hydraulic pressure exceeding 60 tons, suitable for pressing solid tires. When the second pressing head applies pressure to the tire spokes, the relative elasticity between the spokes and the tire's inner ring creates a gap between the tire's inner ring and the rim and retaining ring, allowing the first pressing head to easily press the retaining ring into the rim's clip. The process is much easier with pneumatic tires, ultimately achieving a dual-purpose machine.

Description

Technical Field

[0001] This utility model relates to the field of tire assembly technology, specifically a tire pressing device suitable for both solid tires and pneumatic tires. Background Technology

[0002] Tires are classified as pneumatic tires or solid tires depending on the application environment. In order to quickly install tires on the rim, mechanical pressing is used. The pressing process not only needs to be safe, convenient and fast, but also needs to use retaining rings to lock the tires onto the rim to achieve proper installation.

[0003] Application publication number CN 112792527 A discloses a novel tire retainer ring pressing machine, which further includes a tire centering mechanism, a tire lifting mechanism, a first pressing mechanism, and a second pressing mechanism. The tire centering mechanism is used to position the tire to be pressed and achieve tire centering. The tire lifting mechanism is used to lift the tire after it has been centered. The first pressing mechanism is used to press the center of the retainer ring, and the second pressing mechanism is used to press the edge of the retainer ring to press the retainer ring onto the rim of the lifted tire.

[0004] The technical solution in this patent document is applicable to pneumatic tires because there is no air pressure in the tire when the retainer ring is pressed in. There is no pressure (elasticity) between the tire spokes and the inner ring of the tire, so there is enough gap to press in the retainer ring. Finally, the retainer ring can be pressed into the buckle of the rim.

[0005] When a solid tire is used on an integral rim, the tire's spokes and inner ring form a solid structure. Due to the limited elasticity of the tire rubber, the aforementioned patent document's technical solution cannot be used to press the retaining ring in, as the relative elasticity between the spokes and the tire's inner ring prevents it from being pressed in. Summary of the Invention

[0006] In order to enable the use of a press-fit retaining ring for both solid and pneumatic tires, this utility model provides a tire press-fit device suitable for both solid and pneumatic tires.

[0007] Therefore, the technical solution of this utility model is a tire pressing device applicable to both solid tires and pneumatic tires, including a pressing base plate and a pressing top plate, wherein the pressing base plate and the pressing top plate are connected by pressing columns to form a pressing device, characterized in that: the pressing base plate is provided with a lifting cylinder, and the top of the lifting cylinder is provided with a lifting tool or lifting head that mates with the rim surface; The press-fit top plate is provided with a support body downwards, and a plurality of first pressing heads and a plurality of second pressing heads are provided downwards at the end of the support body. The plurality of first pressing heads and a plurality of second pressing heads are evenly distributed in the circumferential direction at the end of the support body. The ends of multiple first pressure heads correspond to the retaining ring positions of the rim, and multiple second pressure heads correspond to the spokes of the tire.

[0008] The effect is that the lifting cylinder provides an upward force, and its hydraulic pressure can reach more than 60 tons, which is especially suitable for pressing solid tires. When the second pressure head presses on the tire spokes, the relative elasticity between the spokes and the inner ring of the tire creates a gap between the inner ring of the tire and the rim and retainer ring, which allows the retainer ring to be easily pressed into the buckle of the rim by the first pressure head. It becomes much easier when dealing with inflatable tires, ultimately achieving two uses in one machine.

[0009] A further improvement is that a servo motor is provided in the support body, wherein the output end of the servo motor is provided with an active bevel gear, and the active bevel gear meshes with a passive bevel gear. The support body is also equipped with a screw nut seat through the slide rail body, the screw nut seat is equipped with a screw nut, and the screw nut is then assembled with a drive screw; the outer end of the slide rail body is also equipped with a bearing and a bearing seat; the inner end of the drive screw is connected to the passive bevel gear, the outer end of the drive screw is connected to the bearing, and the drive screw rotates radially through the engagement of the active bevel gear with the passive bevel gear. The multiple first pressure heads and multiple second pressure heads are respectively installed under the lead screw nut seat.

[0010] The effect is as follows: the servo motor drives the lead screw to rotate radially through the engagement of the active bevel gears with the passive bevel gears, which in turn drives the lead screw nut seat to move axially along the slide rail. This causes the axial movement of multiple first pressure heads and multiple second pressure heads, thereby adjusting the position of the first and second pressure heads relative to the retaining ring and the tire spokes. This is suitable for pressing tires of different models and specifications. At the same time, the precision of the servo motor is improved and made more controllable.

[0011] A further improvement is that a spring is provided on the outside of the lead screw nut inside the lead screw nut seat, and the spring is sleeved on the drive lead screw.

[0012] The effect is that the spring setting can effectively prevent damage to the lead screw nut seat, and also increases reliability by providing fault tolerance and correction when driving the lead screw. During the pressing process between the first pressure head and the retaining ring, the deformation of the retaining ring will give the first pressure head an axial force along the pressure head drive screw. A spring is installed at the screw nut to ensure that the axial force generated during pressing will not damage the drive screw.

[0013] A further improvement is that a frame is provided laterally on the pressing base plate, and multiple flat conveying rollers are provided on the frame, with a lifting cylinder extending out of the frame space.

[0014] The effect is that the frame is equipped with multiple flat conveyor rollers to facilitate assembly line operations before and after tire pressing. The lifting cylinder extends out of the frame space so that its up and down movement avoids interference from the conveyor rollers.

[0015] A further improvement is that a set of tire centering arms is provided at the near and far ends of the frame, and the center of the tire centering arms is aligned with the center of the lifting cylinder, the first pressure head, the second pressure head, and the wheel rim.

[0016] The effect is that the set of tire centering arms can center the tire and rim, so that the retaining ring will not deviate during pressing, which is safe and reliable.

[0017] A further improvement is that a lifting displacement sensor is also provided between the frame and the lifting cylinder.

[0018] The effect is that the lifting position of the lifting cylinder is controlled by the lifting displacement sensor. Beneficial effects

[0019] This invention enables automatic pressing, which can meet the pressing requirements of retaining rings for tires of different specifications. It automatically adjusts the opening size of the press head according to the product specifications, achieving full automation.

[0020] High assembly efficiency and stable pressing quality; capable of connecting with automated production lines for automatic pressing. It can simultaneously meet the pressing requirements of both solid tires and pneumatic tire retaining rings. Attached Figure Description

[0021] Figure 1 This is a front view of the utility model after the tire has been added.

[0022] Figure 2 This is the front view of the present invention without the tires.

[0023] Figure 3 yes Figure 2 A sectional view of the rear half after the tires have been installed.

[0024] Figure 4 yes Figure 3 A magnified view of the driving section.

[0025] Figure 5 yes Figure 2 A three-dimensional view.

[0026] Figure 6 yes Figure 1 A 1 / 4 sectional view of the solid form.

[0027] Figure 7 yes Figure 1 A 1 / 2 sectional view of the solid form.

[0028] Figure 8 yes Figure 7 A magnified view of the driving section.

[0029] Figure 9 yes Figure 6 A 3D skin tone image.

[0030] In the diagram, 1 is the press-fit base plate, 2 is the press-fit top plate, 3 is the press-fit column, 4 is the lifting cylinder, 5 is the lifting fixture or lifting head; 6 is the support body, 7 is the first pressing head, 8 is the second pressing head, 9 is the wheel rim, 10 is the retaining ring, and 11 is the tire.

[0031] 601 is a servo motor, 602 is an active bevel gear, 603 is a passive bevel gear; 604 is a slide rail body, 605 is a lead screw nut seat, 606 is a lead screw nut, 607 is a drive lead screw; 608 is a bearing and bearing seat; 609 is a spring.

[0032] 101 is the frame, 102 is the conveyor roller, 103 is the frame space, 104 is the tire center arm, and 105 is the lifting displacement sensor. Detailed Implementation

[0033] This utility model is as follows Figure 1-9 As shown.

[0034] A tire pressing device suitable for both solid and pneumatic tires includes a pressing base plate 1 and a pressing top plate 2, which are connected by pressing columns 3 to form a pressing device. The pressing base plate 1 is provided with a lifting cylinder 4 facing upwards, and the top of the lifting cylinder 4 is provided with a lifting tool or lifting pressure head 5 that mates with the wheel rim 9. The press-fit top plate 2 is provided with a support body 6, and a plurality of first pressing heads 7 and a plurality of second pressing heads 8 are provided at the end of the support body 6. The plurality of first pressing heads 7 and the plurality of second pressing heads 8 are evenly distributed in the circumferential direction at the end of the support body 6. The ends of multiple first pressure heads 7 correspond to the positions of retaining rings 10 on the rim 9, and multiple second pressure heads 8 correspond to the spoke surfaces of the tire 11.

[0035] The lifting cylinder 4 provides an upward force, and its hydraulic pressure can reach more than 60 tons, which is especially suitable for pressing solid tires. When the second pressure head 8 applies pressure to the spoke surface of the tire 11, the relative elasticity between the spoke surface and the inner ring of the tire creates a gap between the inner ring of the tire and the rim 9 and retaining ring 10, so that the retaining ring 10 can be easily pressed into the buckle of the rim 9 by the first pressure head 7. It is much easier when encountering pneumatic tires, and finally realizes two uses in one machine.

[0036] The support body 6 is equipped with a servo motor 601, wherein the output end of the servo motor 601 is provided with an active bevel gear 602, and the active bevel gear 602 meshes with a passive bevel gear 603. The support body 6 is also provided with a lead screw nut seat 605 via a slide rail body 604. A lead screw nut 606 is provided in the lead screw nut seat 605. The lead screw nut 606 is then assembled with a drive lead screw 607. The outer end of the slide rail body 604 is also provided with a bearing and a bearing seat 608. The inner end of the drive lead screw 607 is connected to the passive bevel gear 603, and the outer end of the drive lead screw 607 is connected to the bearing. The drive lead screw 607 rotates radially through the passive bevel gear 603 meshing with the active bevel gear 602. The plurality of first pressure heads 7 and the plurality of second pressure heads 8 are respectively installed under the lead screw nut seat 605.

[0037] The servo motor 601 drives the lead screw 607 to rotate radially by engaging the passive bevel gear 603 with the active bevel gear 602. This causes the lead screw nut seat 605 to move axially along the slide rail body 604, thereby causing the axial movement of multiple first pressure heads 7 and multiple second pressure heads 8. This allows for the adjustment of the positions of the first pressure heads 7 and second pressure heads 8 with the retaining ring 10 and the tire spokes 11. This method is suitable for pressing tires of different models and specifications. At the same time, the servo motor 601 has improved accuracy and controllability.

[0038] A spring 609 is also provided on the outside of the lead screw nut 606 inside the lead screw nut seat 605, and the spring 609 is sleeved on the drive lead screw 607.

[0039] The spring 609 can effectively prevent damage to the lead screw nut seat 605, and also increases reliability by providing fault tolerance and correction when driving the lead screw 607. During the pressing process between the first pressure head 7 and the retaining ring 10, the deformation of the retaining ring 10 will give the first pressure head 7 an axial force along the pressure head drive screw 607. A spring 609 is installed at the screw nut 606 to ensure that the axial force generated during pressing will not damage the drive screw 607.

[0040] A frame 101 is also provided horizontally on the press base plate 1. The frame 101 is provided with multiple horizontally placed conveying rollers 102 and a lifting cylinder 4 is provided to extend out of the frame space 103.

[0041] The frame 101 is equipped with multiple horizontally placed conveyor rollers 102 to facilitate assembly line operations before and after tire pressing. The lifting cylinder 4 extends out of the frame space 103 so that the up and down movement of the lifting cylinder 4 avoids interference from the conveyor rollers 102.

[0042] A set of tire centering arms 104 are also provided on the near end and far end of the frame 101. The center of the tire centering arms 104 is consistent with the center of the lifting cylinder 4, the center of the first pressure head 7 and the second pressure head 8, and the center of the wheel rim 9.

[0043] The aforementioned set of tire centering arms 104 can center the tire and rim, ensuring that the retaining ring 10 will not deviate during press-fitting, thus ensuring safety and reliability.

[0044] A lifting displacement sensor 105 is also provided between the frame 101 and the lifting cylinder 4.

[0045] The lifting position of the lifting cylinder 4 is controlled by the lifting displacement sensor 105.

[0046] The working principle of this utility model: Before the tire 11 enters the tire pressing machine, a manual or robotic arm places the retaining ring 10 on the tire 11. The tire 11 enters the retaining ring pressing machine station via multiple horizontal conveying rollers 102 on the frame 101. The tire centering arm 104 centers the tire 11. After centering, the tire centering arm 104 releases, and the lifting cylinder 4 lifts up the rim 9 and the tire 11. The retaining ring 10 on the tire 11 contacts the pressing fixture at the top of the retaining ring pressing machine. During the lifting process, the first pressing head 7 and the second pressing head 8 apply force to the retaining ring 10 and the spokes of the tire 11, respectively. During the pressing process, the retaining ring 10 expands and enlarges under the force. The second pressing head 8 deforms the spokes of the tire 11, providing space for the retaining ring 10 to be pressed into the rim 9 and the tire 11, thus easily pressing the retaining ring 10 into the rim 9 of the tire 11.

[0047] The first pressure head 7 and the second pressure head 8 consist of six groups, which are evenly distributed. In the middle, an active bevel gear 602 is connected to six passive bevel gears 603. The passive gears 603 are mounted on the ends of the six sets of drive screws 607. The servo motor 601 drives the active bevel gear 602 to rotate, which in turn drives the six passive bevel gears 603 to rotate, thereby driving the screws 607 to rotate, realizing synchronous pitch change of the six groups of first pressure heads 7 and second pressure heads 8. The first pressure head 7 and the second pressure head 8 automatically change pitch through the servo motor 601 to meet the pressing needs of products of different specifications.

Claims

1. A tire pressing device suitable for both solid tires and pneumatic tires, comprising a pressing base plate (1) and a pressing top plate (2), wherein the pressing base plate (1) and the pressing top plate (2) are connected by pressing columns (3) to form a pressing device, characterized in that: The pressing base plate (1) is provided with a lifting cylinder (4) facing upwards, and the top of the lifting cylinder (4) is provided with a lifting tool or lifting pressure head (5) that mates with the rim (9) surface. The press-fit top plate (2) is provided with a support body (6) downward. The end of the support body (6) is provided with a plurality of first pressure heads (7) and a plurality of second pressure heads (8). The plurality of first pressure heads (7) and the plurality of second pressure heads (8) are evenly distributed in the circumferential direction at the end of the support body (6). The ends of multiple first pressure heads (7) correspond to the retaining ring (10) position of the rim (9), and multiple second pressure heads (8) correspond to the wing spokes of the tire (11).

2. The tire pressing device applicable to both solid tires and pneumatic tires according to claim 1, characterized in that: The support body (6) is equipped with a servo motor (601), wherein the output end of the servo motor (601) is provided with an active bevel gear (602), and the active bevel gear (602) meshes with a passive bevel gear (603). The support body (6) is also provided with a screw nut seat (605) via a slide rail body (604), and a screw nut (606) is provided inside the screw nut seat (605). The screw nut (606) is then assembled with a drive screw (607). The outer end of the slide rail body (604) is also provided with a bearing and a bearing seat (608). The inner end of the drive screw (607) is connected to the passive bevel gear (603), and the outer end of the drive screw (607) is connected to the bearing. The drive screw (607) rotates radially through the passive bevel gear (603) meshed with the active bevel gear (602). The plurality of first pressure heads (7) and the plurality of second pressure heads (8) are respectively installed under the lead screw nut seat (605).

3. A tire pressing device suitable for both solid tires and pneumatic tires according to claim 2, characterized in that: A spring (609) is provided on the outside of the lead screw nut (606) inside the lead screw nut seat (605), and the spring (609) is sleeved on the drive lead screw (607).

4. A tire pressing device suitable for both solid tires and pneumatic tires according to claim 1, characterized in that: A frame (101) is also provided horizontally on the press base plate (1). Multiple flat conveying rollers (102) are provided on the frame (101), and a lifting cylinder (4) is provided to extend out of the frame space (103).

5. A tire pressing device suitable for both solid tires and pneumatic tires according to claim 4, characterized in that: A set of tire center arms (104) is also provided on the near end and far end of the frame (101). The center of the tire center arms (104) is consistent with the center of the lifting cylinder (4), the center of the first pressure head (7), the center of the second pressure head (8), and the center of the wheel rim (9).

6. A tire pressing device suitable for both solid tires and pneumatic tires according to claim 4 or 5, characterized in that: A lifting displacement sensor (105) is also provided between the frame (101) and the lifting cylinder (4).

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