Solid tire assembly apparatus

Abstract

The application relates to a solid tire assembling device which comprises a C-shaped frame, a lifting pressure head assembly, a core-expanding mold and a controller, the C-shaped frame comprises a base, a stand and a top box which are integrally welded, the base is provided with a workbench, and the workbench is provided with a mold falling hole; the lifting pressure head assembly is fixed on the top box of the C-shaped frame and comprises a lifting device and a pressure head assembly, the action of the lifting device is controlled by the controller, the pressure head assembly comprises a fixing plate, a retreat-stopping disc and a pressure head, and the retreat-stopping disc is used for contacting with spokes of a wheel to exert pressure; the core-expanding mold is provided with a ring groove and a force-bearing ring table, the ring groove is used for placing a rim of the wheel, and the force-bearing ring table is used for bearing the pressure exerted by the pressure head; by adopting the technical scheme, the core-expanding mold can uniformly expand mounting holes of the solid tire, so that the wheel and the solid tire are smoothly assembled, and the rim of the wheel is not subjected to the pressure output by the device in the whole pressure assembling process, and the tire is effectively prevented from being damaged.

Description

Technical Field

[0001] This invention relates to the field of solid tire assembly technology, and more specifically to a solid tire assembly device. Background Technology

[0002] Currently, most car and motorcycle tires are tubeless tires. These tires require inflation to function properly. However, tubeless tires frequently leak air for various reasons, affecting vehicle usability. This has led to the development of airless solid tires. The assembly of solid tires with wheels typically utilizes automated tire-wheel assembly equipment. This equipment works by first inflating the tire using a petal-shaped mold, then pressing the rim in to ensure a perfect fit. However, this type of assembly equipment results in uneven stress on the rim during the tire-rim pressing process, leading to a higher tire damage rate. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a solid tire assembly device.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0005] A solid tire assembly device includes a C-frame, a lifting pressure head assembly, an expansion mold, and a controller;

[0006] The C-type frame includes an integrally welded base, columns, and top box. The base is equipped with a worktable for placing solid tires and a mold drop hole for the expansion mold to pass through.

[0007] The lifting head assembly includes a lifting device and a pressure head assembly. The lifting device's raising, lowering, and stopping are controlled by a controller. The fixed part of the lifting device is fixed to the top box of the C-shaped frame. The pressure head assembly includes a fixed plate, a backstop plate, and pressure heads. The fixed plate is fixedly connected to the lifting part of the lifting device. The backstop plate is disc-shaped, located below the fixed plate, and fixedly connected to the fixed plate. The backstop plate is used to contact the wheel spokes. The backstop plate has a clearance hole A, which is used to accommodate the upper part of the wheel hub. The number of pressure heads is N1, located below the backstop plate, and fixedly connected to the backstop plate. N1 is equal to the number of wheel spokes.

[0008] The expansion mold is used to be placed in the mounting hole of a solid tire to expand the mounting hole of the solid tire. The expansion mold is provided with an annular groove, a bearing ring platform and a relief hole B. The annular groove is used to place the wheel rim, the bearing ring platform is used to bear the pressure applied by the pressure head, and the relief hole B is used to accommodate the lower part of the wheel hub.

[0009] Furthermore, the pressure head is embedded with a hydraulic buffer. The telescopic part of the hydraulic buffer includes an integrally connected telescopic rod and a buffer head. The lower part of the telescopic rod and the buffer head both extend beyond the lower end of the pressure head, and the buffer head is located below the pressure head.

[0010] Furthermore, the base is also provided with a mold dropping ramp, which is located below the mold dropping hole and is used to receive the expansion mold falling from the mold dropping hole.

[0011] Furthermore, the lifting device includes a telescopic rod assembly, which includes a power input shaft and a telescopic shaft. The power input shaft is connected to the output shaft of the motor. The motor is fixed on a motor mounting base. The motor mounting base and the fixed part of the telescopic rod assembly are both fixed on a mounting plate. The mounting plate is fixed on the top box of the C-shaped frame.

[0012] Furthermore, the lifting pressure head assembly also includes a first guide rod and a second guide rod, the lower ends of which are both fixed to the pressure head; the mounting plate is provided with a first guide through hole and a second guide through hole, the first guide through hole being coaxially matched with the first guide rod, and the second guide through hole being coaxially matched with the second guide rod, for lifting guidance.

[0013] Furthermore, a switch sensing block is fixedly provided on the first guide rod. The switch sensing block is used to sense the upper limit switch and the lower limit switch. Both the upper limit switch and the lower limit switch are fixed on the switch mounting bracket, which is fixed on the mounting plate. Both the upper limit switch and the lower limit switch are connected to the controller. When the pressure head is at the lower limit position, the switch sensing block senses the lower limit switch. When the pressure head is at the upper limit position, the switch sensing block senses the upper limit switch.

[0014] Furthermore, the lifting head assembly also includes a displacement sensor, which is connected to the controller and used to sense the real-time position of the pressure head.

[0015] Furthermore, the displacement sensor is a pull-string type displacement sensor. The body of the pull-string type displacement sensor is fixed on the mounting plate, the pull-string type displacement sensor is tied to the mounting plate, and the mounting plate is fixed on the second guide rod.

[0016] Furthermore, the displacement sensor is a magnetostrictive displacement sensor, the main body of the magnetostrictive displacement sensor is fixed on the mounting plate, the position magnet of the magnetostrictive displacement sensor is fixed on the mounting plate, and the mounting plate is fixed on the second guide rod.

[0017] The solid tire assembly equipment according to claim 1 is characterized in that: each of the four bottom corners of the base is provided with height adjustment pads for adjusting the levelness of the C-shaped frame.

[0018] The beneficial effects that this invention can achieve are as follows:

[0019] (1) Under the action of the pressure head, the expansion mold can make the mounting hole of the solid tire expand evenly so as to realize the smooth assembly of the wheel rim and the solid tire.

[0020] (2) The pressure head only applies pressure to the bearing ring platform of the expansion core mold and does not apply pressure to the rim of the wheel; the anti-rollover disc only contacts the spokes of the wheel to apply pressure and does not apply pressure to the rim of the wheel; that is to say, the rim is not subjected to the pressure output by the equipment during the entire pressing process, which effectively avoids damage to the tire.

[0021] (3) The hydraulic buffer can automatically find the horizontal state of the expansion mold, avoid impact, apply pressure evenly, and achieve good installation effect.

[0022] (4) The hydraulic buffer makes the separation of the expansion mold and the solid tire slow and gentle, avoiding damage to the expansion mold. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the present invention;

[0024] Figure 2 This is a front view of an embodiment of the present invention;

[0025] Figure 3 This is a side view of an embodiment of the present invention;

[0026] Figure 4 This is a top view of an embodiment of the present invention;

[0027] Figure 5 yes Figure 2 AA section view;

[0028] Figure 6 This is a three-dimensional representation of the lifting pressure head assembly in an embodiment of the present invention. Figure I ;

[0029] Figure 7 This is a three-dimensional representation of the lifting pressure head assembly in an embodiment of the present invention. Figure II ;

[0030] Figure 8 This is a front view of the lifting pressure head assembly in an embodiment of the present invention;

[0031] Figure 9 This is a side view of the lifting pressure head assembly in an embodiment of the present invention;

[0032] Figure 10 This is a top view of the lifting pressure head assembly in an embodiment of the present invention;

[0033] Figure 11 yes Figure 8 BB section view;

[0034] Figure 12 This is a schematic diagram of the hydraulic buffer head being fully retracted in an embodiment of the present invention.

[0035] Figure 13 This is a cross-sectional view of the core-expanding mold in an embodiment of the present invention;

[0036] In the diagram: 1-Upper jaw plate; 2-Lifting pressure head assembly; 201-Motor; 202-Motor mounting base; 203-Mounting plate; 204-Second guide rod; 205-Fixing plate; 206-Telescopic rod assembly; 207-Telescopic shaft; 208-Lower limit switch; 209-First guide rod; 210-Switch sensing block; 211-Upper limit switch; 212-Switch mounting bracket; 213-Anti-reverse disc; 214-Hydraulic buffer; 215-Leaning hole A; 216-Displacement sensor; 217-Mounting plate; 218-Pressure head; 3-Wheel; 4-Expansion core mold; 401-Ring groove; 402-Bearing ring platform; 403-Leaning hole B; 5-Solid tire; 6-Controller; 7-Drop mold ramp; 8-Workbench; 801-Drop mold hole; 9-Height adjustment pad; 10-Positioning component; 11-Base; 12-Column. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Example

[0038] A solid tire assembly device is provided, and the applicable wheel 3 has the following structure: a plurality of spokes are provided between the rim and the hub, and there is a gap between adjacent spokes. In this embodiment, the wheel 3 includes 3 spokes. The solid tire assembly device of this embodiment includes a C-shaped frame, a lifting pressure head assembly 2, a core expansion mold 4, and a controller 6.

[0039] The C-type frame includes an integrally welded base 11, column 12, and top box. The base 11 is provided with a worktable 8 for placing solid tires 5. The worktable 8 is provided with a mold drop hole 801 for allowing the expansion mold 4 to pass through. The base 11 is also provided with a mold drop ramp 7, which is located below the mold drop hole 801 and is used to receive the expansion mold 4 falling from the mold drop hole 801. The upper surface of the mold drop ramp 7 is covered with a soft material, which is a rubber plate in this embodiment. The four corners of the bottom of the base 11 are provided with height adjustment pads 9 for adjusting the level of the C-type frame. The worktable 8 is provided with multiple positioning parts 10, which are evenly distributed around the circumference of the mold drop hole 801 for coarse positioning of the solid tires 5.

[0040] The lifting head assembly 2 includes a lifting device and a pressure head assembly. The lifting device’s raising, lowering and stopping are controlled by a controller 6.

[0041] The lifting device in this embodiment is electric. Under the guidance of this embodiment, those skilled in the art can also configure the lifting device as hydraulic to achieve the function of lifting and providing downward pressure. The lifting device includes a telescopic rod assembly 206, which includes a power input shaft and a telescopic shaft 207. The power input shaft is fixedly connected to the output shaft of the reducer through a coupling. The reducer is connected to a motor 201. The motor 201 and the reducer are both fixed on a motor mounting base 202. The fixed parts of the motor mounting base 202 and the telescopic rod assembly 206 are both fixed on a mounting plate 203. The mounting plate 203 is fixed on the upper jaw plate 1 of the top housing of the C-shaped frame.

[0042] The pressure head assembly includes a fixed plate 205, a backstop disc 213, pressure heads 218, and a hydraulic buffer 214. The fixed plate 205 is fixedly connected to the telescopic shaft 207. The backstop disc 213 is disc-shaped, located below the fixed plate 205, and fixedly connected to the fixed plate 205. The backstop disc 213 is used to contact the spokes of the wheel 3. The backstop disc 213 is provided with a clearance hole A215, which is used to accommodate the upper part of the wheel hub of the wheel 3. The number of pressure heads 218 is... There are 3 pressure heads, the same number as the spokes of wheel 3. The pressure heads 218 are located below the anti-reverse disc 213 and are fixedly connected to the anti-reverse disc 213. The 3 pressure heads 218 are evenly distributed around the circumference of the clearance hole A215. Each pressure head 218 is embedded with a hydraulic buffer 214. The telescopic part of the hydraulic buffer 214 includes an integrally connected telescopic rod and a buffer head. The lower part of the telescopic rod and the buffer head both extend beyond the lower end of the pressure head 218. The buffer head is located below the pressure head 218.

[0043] The lifting pressure head assembly 2 also includes a first guide rod 209 and a second guide rod 204, the lower ends of which are fixed to the pressure head; the mounting plate 203 is provided with a first guide through hole and a second guide through hole, the first guide through hole being coaxially matched with the first guide rod 209 and the second guide through hole being coaxially matched with the second guide rod 204, for lifting guidance.

[0044] A switch sensing block 210 is fixedly provided on the top of the first guide rod 209. The switch sensing block 210 is used to sense the upper limit switch 211 and the lower limit switch 208. The upper limit switch 211 and the lower limit switch 208 are both fixed on the switch mounting bracket 212, which is fixed on the mounting plate 203. The upper limit switch 211 and the lower limit switch 208 are both connected to the controller 6. When the pressure head is at the lower limit, the switch sensing block 210 senses the lower limit switch 208. When the pressure head is at the upper limit, the switch sensing block 210 senses the upper limit switch 211.

[0045] The lifting head assembly 2 also includes a displacement sensor 216, which is connected to the controller 6 and used to sense the real-time position of the pressure head. The displacement sensor 216 can be either a pull-string displacement sensor or a magnetostrictive displacement sensor. This embodiment uses a pull-string displacement sensor, but those skilled in the art can also choose a magnetostrictive displacement sensor under the guidance of this embodiment. When the displacement sensor 216 is selected as a pull-string displacement sensor, the body of the pull-string displacement sensor is fixed to the mounting plate 203, the pull-string is tied to the mounting plate 217, and the mounting plate 217 is fixed to the top of the second guide rod 204. When the displacement sensor 216 is selected as a magnetostrictive displacement sensor, the body of the magnetostrictive displacement sensor is fixed to the mounting plate 203, the position magnet of the magnetostrictive displacement sensor is fixed to the mounting plate 217, and the mounting plate 217 is fixed to the top of the second guide rod 204.

[0046] The expansion mold 4 is used to be placed in the mounting hole of the solid tire 5 to expand the mounting hole of the solid tire 5. The expansion mold 4 is conical in shape, with a small diameter at the bottom and a large diameter at the top. For the taper setting of the expansion mold 4, those skilled in the art can set different tapers according to different tire materials and specifications, so that the mounting hole of the solid tire 5 expands within a set stroke range. The expansion mold 4 is provided with an annular groove 401, a bearing ring platform 402 and a relief hole B403. The annular groove 401 is used to place the rim of the wheel 3, the bearing ring platform 402 is used to bear the pressure applied by the pressure head 218, and the relief hole B403 is used to accommodate the lower part of the wheel hub of the wheel 3.

[0047] The expansion mold 4 can be reused.

[0048] The controller 6 includes manual "on / off", "up", "down", and "stop" buttons, allowing for manual control.

[0049] Use of this embodiment:

[0050] (1) Place the solid tire 5 on the workbench 8 and perform coarse positioning of the solid tire 5 by using the positioning component 10.

[0051] (2) Place the expansion core mold 4 into the mounting hole of the solid tire 5.

[0052] (3) Place the hub of wheel 3 in the relief hole B403 of expansion core mold 4, and place the rim of wheel 3 in the annular groove 401 of expansion core mold 4.

[0053] (4) The lifting device of the lifting head assembly 2 is activated by the controller 6, and the pressure head 218 descends. The descent of the pressure head 218 is divided into four stages:

[0054] First stage: The buffer heads of the three hydraulic buffers 214 contact the bearing ring platform 402 of the expansion mold 4. During the descent of the pressure head 218, the buffer heads of the three hydraulic buffers 214 are slowly pressed into the interior of the pressure head 218, so that the expansion mold 4 is gradually adjusted to a horizontal state.

[0055] Second stage: The pressure head 218 continues to descend, and the buffer heads of the three hydraulic buffers 214 are all pressed into the interior of the pressure head 218. The pressure head 218 contacts the bearing ring platform 402 and applies pressure to the bearing ring platform 402. The expansion mold 4 moves downward under the pressure, causing the mounting hole of the solid tire 5 to expand. The wheel 3 moves downward naturally with the expansion mold 4.

[0056] Third stage: The pressure head 218 continues to descend, and the expansion mold 4 is gradually pressed out of the solid tire 5. The anti-roll plate 213 contacts the spokes of the wheel 3 to apply pressure and keep the wheel 3 in a horizontal state.

[0057] Fourth stage: The pressure head 218 continues to descend. When the pressure head 218 descends to the lower limit, the switch sensing block 210 senses the lower limit switch 208, and the controller 6 controls the lifting device of the lifting pressure head assembly 2 to stop descending; the buffer head of the hydraulic buffer 214 naturally rebounds, causing the expansion mold 4 and the solid tire 5 to separate from each other. The expansion mold 4 falls through the mold drop hole 801 onto the mold drop ramp 7, and the assembly of the wheel 3 and the solid tire 5 is completed.

[0058] (5) The lifting device of the lifting head assembly 2 is activated by the controller 6, the head rises, and when the head rises to the upper limit, the switch sensing block 210 senses the upper limit switch 211, and the controller 6 controls the lifting device of the lifting head assembly 2 to stop rising.

[0059] For the assembly of solid tires 5 and wheels 3 of different specifications, the appropriate expansion mold 4 and pressure head 218 can be replaced.

[0060] In the description of this invention, terms such as "inner," "outer," "upper," "lower," "front," and "rear," which indicate orientation or positional relationship, are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0061] The above description is only one embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A solid tire assembly device, characterized in that: Includes a C-type frame, a lifting pressure head assembly (2), an expansion mold (4), and a controller (6); The C-type frame includes an integrally welded base (11), column (12) and top box. The base (11) is provided with a workbench (8), which is used to place solid tires (5). The workbench (8) is provided with a drop hole (801), which is used to allow the expansion core mold (4) to pass through. The lifting head assembly (2) includes a lifting device and a pressure head assembly. The lifting device’s rise, fall and stop are controlled by a controller (6). The fixed part of the lifting device is fixed to the top box of the C-type frame. The pressure head assembly includes a fixed plate (205), a backstop plate (213) and a pressure head (218). The fixed plate (205) is fixedly connected to the lifting part of the lifting device. The backstop plate (213) is disc-shaped, located below the fixed plate (205) and fixedly connected to the fixed plate (205). The backstop plate (213) is used to contact the spokes of the wheel (3). The backstop plate (213) is provided with a clearance hole A (215). The clearance hole A (215) is used to accommodate the upper part of the wheel hub (3). The number of pressure heads (218) is N1. The pressure heads (218) are located below the backstop plate (213) and fixedly connected to the backstop plate (213). N1 is equal to the number of spokes of the wheel (3). The expansion mold (4) is used to be placed in the mounting hole of the solid tire (5) to expand the mounting hole of the solid tire (5); the expansion mold (4) is provided with an annular groove (401), a bearing ring platform (402) and a relief hole B (403). The annular groove (401) is used to place the rim of the wheel (3), the bearing ring platform (402) is used to bear the pressure applied by the pressure head (218), and the relief hole B (403) is used to accommodate the lower part of the wheel (3) hub.

2. The solid tire assembly equipment according to claim 1, characterized in that: The pressure head (218) is embedded with a hydraulic buffer (214). The telescopic part of the hydraulic buffer (214) includes an integrally connected telescopic rod and a buffer head. The lower part of the telescopic rod and the buffer head both extend beyond the lower end of the pressure head (218), and the buffer head is located below the pressure head (218).

3. The solid tire assembly equipment according to claim 1, characterized in that: The base (11) is also provided with a mold dropping ramp (7), which is located below the mold dropping hole (801) and is used to receive the expansion mold (4) falling from the mold dropping hole (801).

4. The solid tire assembly equipment according to claim 1, characterized in that: The lifting device includes a telescopic rod assembly (206), which includes a power input shaft and a telescopic shaft (207). The power input shaft is connected to the output shaft of the motor (201). The motor (201) is fixed on the motor mounting base (202). The fixed parts of the motor mounting base (202) and the telescopic rod assembly (206) are both fixed on the mounting plate (203). The mounting plate (203) is fixed on the top box of the C-type frame.

5. The solid tire assembly equipment according to claim 4, characterized in that: The lifting pressure head assembly (2) further includes a first guide rod (209) and a second guide rod (204), the lower ends of which are fixed to the pressure head; the mounting plate (203) is provided with a first guide through hole and a second guide through hole, the first guide through hole being coaxially matched with the first guide rod (209), and the second guide through hole being coaxially matched with the second guide rod (204), for lifting guidance.

6. The solid tire assembly equipment according to claim 5, characterized in that: A switch sensing block (210) is fixedly provided on the first guide rod (209). The switch sensing block (210) is used to sense the upper limit switch (211) and the lower limit switch (208). The upper limit switch (211) and the lower limit switch (208) are both fixed on the switch fixing bracket (212). The switch fixing bracket (212) is fixed on the mounting plate (203). The upper limit switch (211) and the lower limit switch (208) are both connected to the controller (6). When the pressure head is at the lower limit, the switch sensing block (210) senses the lower limit switch (208). When the pressure head is at the upper limit, the switch sensing block (210) senses the upper limit switch (211).

7. The solid tire assembly equipment according to claim 5, characterized in that: The lifting head assembly (2) also includes a displacement sensor (216), which is connected to the controller (6) and is used to sense the real-time position of the head.

8. The solid tire assembly equipment according to claim 7, characterized in that: The displacement sensor (216) is a pull-string displacement sensor. The body of the pull-string displacement sensor is fixed on the mounting plate (203), and the pull-string of the pull-string displacement sensor is tied to the mounting plate (217). The mounting plate (217) is fixed on the second guide rod (204).

9. The solid tire assembly equipment according to claim 7, characterized in that: The displacement sensor (216) is a magnetostrictive displacement sensor. The main body of the magnetostrictive displacement sensor is fixed on the mounting plate (203), the position magnet of the magnetostrictive displacement sensor is fixed on the mounting plate (217), and the mounting plate (217) is fixed on the second guide rod (204).

10. The solid tire assembly equipment according to claim 1, characterized in that: The base (11) is provided with height adjustment pads (9) at the four corners of its bottom for adjusting the level of the C-type frame.

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