CN108189440B

CN108189440B - Positioning reset mechanism of explosion-proof tire filling device

Info

Publication number: CN108189440B
Application number: CN201810006024.6A
Authority: CN
Inventors: 冯华国
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-03
Filing date: 2018-01-03
Publication date: 2023-09-08
Anticipated expiration: 2038-01-03
Also published as: CN108189440A

Abstract

The invention discloses a positioning and resetting mechanism of an explosion-proof tire filling device, which comprises a retracting mechanism driving a pipeline assembly to vertically move up and down and a rotating assembly driving the pipeline assembly to synchronously rotate; the retraction mechanism comprises a fixed plate and a movable plate positioned below the fixed plate, and a telescopic piece which drives the movable plate to vertically move up and down when the retractable piece is in telescopic connection with the fixed plate; the pipeline assembly comprises a glue spraying pipe for spraying glue to the inner wall of the explosion-proof tire and a feeding pipe for conveying particles to the inside of the explosion-proof tire, and the glue spraying pipe and the feeding pipe are fixedly connected with the movable plate; the rotary assembly comprises a driven linkage wheel fixedly connected with the rubber spraying pipe and the feeding pipe respectively, a driving linkage wheel rotatably connected with the movable plate and a circle of linkage chain wound on the driving linkage wheel and the driven linkage wheel, wherein the driving linkage wheel is fixedly connected with an output shaft of the driving motor.

Description

Positioning reset mechanism of explosion-proof tire filling device

Technical Field

The invention relates to a filling system of an explosion-proof tire, in particular to a positioning and resetting mechanism of an explosion-proof tire filling device.

Background

The filling device of the run-flat tire is mainly used for filling the inside of the tire with a filler to improve the run-flat and puncture resistance of the tire.

The pipeline for conveying various fillers and adhesives is needed in the process of filling the tire, the discharge port of the pipeline is required to be inserted into the explosion-proof tire to be positioned at a corresponding station, filling work can be started, and after the work is finished, the lower port of the pipeline is required to be returned to the original position when the explosion-proof tire is required to be replaced.

Disclosure of Invention

The invention aims to provide a positioning and resetting mechanism of a run-flat tire filling device, which has the advantage that a lower port of a pipeline assembly can be driven to move to a corresponding station or retract to an original position.

The technical aim of the invention is realized by the following technical scheme: a positioning and resetting mechanism of an explosion-proof tire filling device comprises a retracting mechanism for driving a pipeline assembly to vertically move up and down and a rotating assembly for driving the pipeline assembly to synchronously rotate.

Through above-mentioned technical scheme, rotating assembly can drive the rotation of pipeline subassembly, makes the lower port of pipeline rotate into or rotate out run-flat tire, and after the run-flat tire of rotating out, the retracting mechanism can drive the pipeline subassembly up-and-down motion and can not be inconsistent with run-flat tire inboard edge.

The invention is further provided with: the retraction mechanism comprises a fixed plate and a movable plate positioned below the fixed plate, and a telescopic piece which drives the movable plate to vertically move up and down when the retractable piece is in telescopic connection with the fixed plate; the pipeline assembly comprises a glue spraying pipe for spraying glue to the inner wall of the run-flat tire and a feeding pipe for conveying particles to the inner part of the run-flat tire, and the glue spraying pipe and the feeding pipe are fixedly connected with the movable plate.

Through the technical scheme, when the telescopic piece stretches out and draws back, the fixed plate keeps motionless, and the movable plate moves up and down along with the stretching out and drawing back of the telescopic piece, drives the spray hose and the feeding pipe to move up and down, and enables the lower ports of the spray hose and the feeding pipe to stretch to the height position of the corresponding station or return to the original height position.

The invention is further provided with: the rotary assembly comprises a driven linkage wheel fixedly connected with the rubber spraying pipe and the feeding pipe respectively, a driving linkage wheel rotatably connected with the movable plate and a circle of linkage chain wound on the driving linkage wheel and the driven linkage wheel, and the driving linkage wheel is fixedly connected with an output shaft of the driving motor.

Through the technical scheme, the driving motor can drive the driven linkage wheel to rotate through the driving linkage wheel and the linkage chain when in operation, so that the spraying pipe and the feeding pipe are driven to rotate together, the lower ports of the spraying pipe and the feeding pipe can be rotated into corresponding stations or rotated out of the run-flat tire, and the lower ports are prevented from being abutted against or colliding with the edge of the run-flat tire when being lifted upwards to the original position.

The invention is further provided with: the telescopic piece is a pneumatic cylinder, the cylinder body is fixedly connected with the fixed plate, and the piston rod is fixedly connected with the movable plate.

Through the technical scheme, the piston rod can drive the movable plate to vertically move up and down when moving up and down along the cylinder body.

The invention is further provided with: the number of the pneumatic cylinders is more than three.

Through the technical scheme, the multiple pneumatic cylinders can enable the stress of different positions of the movable plate to be more balanced, and the movable plate moves up and down more stably.

The invention is further provided with: the rotating assembly is externally covered with a housing.

Through the technical scheme, dust in the outside air can be reduced to enter the rotating assembly, or other objects are prevented from entering the rotating assembly to influence the operation of the rotating assembly.

In summary, the invention has the following beneficial effects:

1. the retraction mechanism can drive the pipeline assembly to move up and down, and the lower port of the pipeline assembly moves to the position with the same height as the corresponding station or returns to the original position;

2. the rotary assembly can enable the lower port of the pipeline assembly to rotate into the interior of the explosion-proof pipeline to be positioned at a corresponding station, or rotate out of the explosion-proof tire to avoid collision or collision with the edge of the explosion-proof tire when moving upwards.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic diagram showing the structure of a centrifugal device;

FIG. 3 is a schematic diagram showing a clamping turret structure;

FIG. 4 is a schematic diagram showing the construction of a retainer ring;

FIG. 5 is a schematic diagram showing the structure of a spindle;

FIG. 6 is a schematic diagram embodying a transmission mechanism;

FIG. 7 is a schematic diagram showing the structure of a brake mechanism;

FIG. 8 is a schematic diagram showing the structure of a hinge shaft;

FIG. 9 is a schematic diagram showing the structure of a positioning and resetting mechanism;

FIG. 10 is a schematic diagram showing the assembled relationship between the jack, swivel assembly and pipe assembly;

FIG. 11 is a schematic diagram showing the construction of a piping component;

FIG. 12 is a schematic diagram showing the construction of a rotating assembly;

FIG. 13 is a schematic diagram showing the construction of a glue head;

FIG. 14 is a schematic representation of the relationship of the lower port of the conduit assembly to the run-flat tire when in the station;

FIG. 15 is a schematic view showing the structure of the lower end of the feed pipe;

FIG. 16 is a schematic diagram showing a configuration of a showerhead;

FIG. 17 is a schematic diagram showing a cavity structure;

FIG. 18 is a schematic diagram illustrating the operating principle of the gas lance;

fig. 19 is a schematic diagram showing the structure of a blowing head;

FIG. 20 is a schematic diagram illustrating the principle of operation of the pipe assembly rotated out of the run flat tire;

FIG. 21 is a schematic view showing the structure of the clamping turntable in embodiment 2;

FIG. 22 is a cross-sectional view at A-A in FIG. 21;

FIG. 23 is a schematic view showing the driving gear and driven gear transmission principle in embodiment 2

FIG. 24 is a schematic illustration of a run flat tire configuration;

FIG. 25 is a schematic diagram showing the internal structure of a run-flat tire;

fig. 26 is a schematic view showing the structure of the filler filling angle.

In the figure, 1, a centrifugal device; 11. a bottom plate; 12. a protective cover; 121. a sliding sleeve; 13. a brake mechanism; 131. a hinge shaft; 132. a handle; 133. braking disc; 134. a guide bar; 135. a brake piece; 136. a transition fillet; 14. clamping the turntable; 141. a connecting disc; 142. a lifting rod; 143. a clamping rod; 144. a rubber pad; 145. a baffle ring; 146. a tray; 147. a sleeve; 1471. chamfering; 148. a plastic pad; 149. railing; 15. a transmission mechanism; 151. a worm wheel; 152. a worm; 153. a bearing seat; 154. a driven gear; 155. a drive gear; 16. a rotating shaft; 161. a journal; 2. a filling device; 21. a conduit assembly; 211. spraying a rubber tube; 212. a feed pipe; 213. an air pipe; 214. an air duct; 215. splicing pipes; 216. a hose; 217. a glue spraying head; 2171. a glue spraying hole; 218. a jet head; 2181. a cavity; 2182. an air jet; 2183. a circular arc transition surface; 219. a blowing head; 2191. an air outlet; 22. positioning and resetting the mechanism; 221. a retracting mechanism; 2211. a fixing plate; 2212. a movable plate; 2213. a pneumatic cylinder; 222. a rotating assembly; 2221. driven linkage wheels; 2222. a main shaft; 2223. an active linkage wheel; 2224. a linkage chain; 2225. a housing; 3. tapered roller bearings; 4. deep groove ball bearings; 5. a motor; 6. and driving the motor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: the utility model provides a location canceling release mechanical system of run-flat tire filling device, as shown in fig. 1, includes centrifugal device 1 and the upper portion filling device 2 of lower part, and filling device 2 is used for filling the filler to the tire medial surface, and centrifugal device 1 is used for driving the run-flat tire rotation, makes the filler hug closely on the medial surface of run-flat tire under centrifugal force effect.

As shown in fig. 2, the centrifugal device 1 comprises a bottom plate 11, a protective cover 12, a brake stopping mechanism 13 and a clamping rotary table 14 which are sequentially arranged from bottom to top, during operation, an anti-explosion tire is fixedly arranged on the inner side of the clamping rotary table 14, a transmission mechanism 15 and a driving device are arranged in the protective cover 12, a rotating shaft 16 which is in transmission connection with the transmission mechanism 15 is fixedly connected below the clamping rotary table 14, the driving device drives the rotating shaft 16 and the clamping rotary table 14 to rotate through the transmission mechanism 15, so that the anti-explosion tire is driven to rotate, after the driving device stops working, the anti-explosion tire and the clamping rotary table 14 continue to rotate for a period of time under the action of inertia, the brake stopping mechanism 13 is used for manually forcing the rotating shaft 16 to rapidly reduce the rotating speed, the time for decelerating the clamping rotary table 14 is shortened, and the working efficiency is improved.

As shown in fig. 3, the clamping turntable 14 includes a lifting structure fixedly connected to the upper end of the rotating shaft 16, the lifting structure includes a connecting disc 141 fixedly connected to the upper end of the rotating shaft 16 and lifting rods 142 fixedly connected to the outer cylindrical surface of the connecting disc 141 along the diameter direction of the connecting disc 141, the lifting rods 142 are circumferentially arrayed around the central axis of the rotating shaft 16, the lifting rods 142 are used for supporting the bottom surface of the anti-explosion tire (see fig. 2), and the number of the lifting rods 142 can be more than three and are on the same horizontal plane, so that the stability of supporting the bottom surface of the anti-explosion tire is improved. The one end that the connection pad 141 was kept away from to the pole 142 is equipped with the clamping structure, and the clamping structure is fixed connection and is kept away from the clamping lever 143 of pivot 16 and vertical setting at the pole 142 that lifts, and the outer cylinder of clamping lever 143 for the run-flat tire is inconsistent in order to hold the run-flat tire on clamping turntable 14, makes the central axis of run-flat tire coincide with the central pivot 16 of pivot 16, and the run-flat tire rotates can be more steady. The inner side of the clamping rod 143 is fixedly connected with a circle of circular railing 149, and the railing 149 is abutted against the outer column surface of the run-flat tire when the run-flat tire is placed on the inner side of the clamping rod 143, so that the stability of the radial support of the clamping rod 143 on the run-flat tire is improved.

The clamping rod 143 is fixedly sleeved with the rubber pad 144, the rubber pad 144 can be abutted against the outer column surface of the run-flat tire, the rubber pad 144 can increase the friction coefficient between the clamping rod 143 and the run-flat tire, so that the friction force between the rubber pad 144 and the run-flat tire is increased, the run-flat tire and the clamping rod 143 are not easy to slide relatively, and the clamping turntable 14 can drive the run-flat tire to rotate more easily.

The end of the clamping rod 143 away from the lifting rod 142 is bent in a direction away from the central axis of the rotating shaft 16, when the run-flat tire is placed inside the clamping rod 143, the surface of the run-flat tire can gradually slide inside the clamping rod 143 along the surface of the bent part of the clamping rod 143, and the run-flat tire can still be easily placed inside the clamping rod 143 under the condition that the outer column surface is not completely aligned with the inner side surface of the clamping rod 143.

A circle of baffle ring 145 is fixedly connected on the lifting rod 142, and in combination with fig. 4, after the explosion-proof tire is mounted on the clamping turntable 14, the outer wall of the baffle ring 145 can be abutted against the edge of the bottom surface of the explosion-proof tire, so that the packing can be blocked inside the explosion-proof tire, and the packing is reduced from falling from a hole in the middle of the explosion-proof tire.

As shown in fig. 5, the rotating shaft 16 has a hollow structure, which can reduce the weight of the rotating shaft 16 and reduce the material consumption of the rotating shaft 16. The lower end of the rotating shaft 16 is provided with two shaft necks 161, the upper shaft neck 161 is sleeved with the tapered roller bearing 3, the upper surface of the tapered roller bearing 3 is abutted with the shaft shoulder surface of the upper shaft neck 161, the lower surface is abutted with the upper surface of the bottom plate 11, and the bottom plate 11 supports the tapered roller bearing 3 and the rotating shaft 16 in the vertical direction. The bottom of the rotating shaft 16 is also provided with a shaft neck 161, the shaft neck 161 at the bottom is sleeved with a deep groove ball bearing 4, the outer cylindrical surface of the outer ring of the deep groove ball bearing 4 is abutted against the inner wall of a hole correspondingly arranged on the bottom plate 11, the inner cylindrical surface of the inner ring is abutted against the outer cylindrical surface of the shaft neck 161 at the bottom, and the deep groove ball bearing 4 can reduce the friction force between the outer cylindrical surface of the rotating shaft 16 and the bottom plate 11 and simultaneously support the radial direction of the rotating shaft 16.

As shown in fig. 6, the transmission mechanism 15 includes a worm wheel 151 fixedly sleeved on the rotating shaft 16 and a worm 152 meshed with the worm wheel 151, the driving device may be a motor 5, an output shaft of the motor 5 is fixedly connected with the worm 152, a base of the motor 5 is fixedly connected with the bottom plate 11 (see fig. 3), and the motor 5 drives the worm wheel 151 and the rotating shaft 16 to rotate through the worm 152 when running. Bearing blocks 153 are sleeved at two ends of the worm 152, and the bottom surface of the bearing block 153 is fixedly connected with the bottom plate 11 and used for supporting two ends of the worm 152.

Referring to fig. 7 and 8, the braking mechanism 13 includes a hinge shaft 131 vertically and fixedly connected to the upper surface of the base plate 11, a handle 132 rotatably connected to the upper end of the hinge shaft 131, and a braking disc 133 fixedly connected to one end of the handle 132 and located between the hinge shaft 131 and the rotating shaft 16, when the handle 132 is rotated by hand, the braking disc 133 can rotate around the hinge shaft 131, one surface of the braking disc 133, which is close to the rotating shaft 16, can be pressed against the outer surface of the rotating shaft 16, friction force is generated between the braking disc 133 and the rotating shaft 16, and the braking mechanism 13 can force the rotating shaft 16 to stop at a higher speed under the condition that no driving force is generated. The surface of the brake disc 133 close to the rotating shaft 16 is arc-shaped, so that the contact area with the rotating shaft 16 can be increased, the abrasion is reduced, and the friction force between the brake disc 133 and the rotating shaft 16 can be increased due to the fact that the brake disc 135 is fixedly connected to the surface close to the rotating shaft 16. The length of the handle 132 is more than 60cm, the manual braking can be more labor-saving, and the distance between the surface of the braking disc 133, which is close to the rotating shaft 16, and the surface of the rotating shaft 16 is 0.5 cm-1 cm. When the handle 132 is not rotated, the plane where the central axis of the hinge shaft 131 and the central axis of the rotating shaft 16 are located is perpendicular to the arc-shaped surface of the brake disc 133, and the same friction force can be generated between the brake disc 133 and the rotating shaft 16 by rotating the handle 132 in the same angle in two directions. The handle 132 is equipped with transition fillet 136 with the junction of disc 133 for reduce stress concentration, improve the joint strength between handle 132 and the disc 133.

As shown in fig. 8, the upper end of the protective cover 12 is provided with a hole, a sliding sleeve 121 is fixedly sleeved in the hole, the outer cylindrical surface of the upper end of the rotating shaft 16 is rotatably connected with the inner wall of the sliding sleeve 121, and the sliding sleeve 121 can radially support the upper end of the rotating shaft 16. The lower surface of handle 132 and the upper surface butt of protection casing 12, the upper surface level of protection casing 12, when handle 132 rotates around articulated shaft 131, the lower surface of handle 132 can follow the upper surface of protection casing 12, and protection casing 12 can support handle 132 lower surface, restricts the one end of handle 132 keeping away from articulated shaft 131 and deflecting downwards. Referring to fig. 7, a guide bar 134 is fixedly connected to the protective cover 12, the lower surface of the guide bar 134 abuts against the upper surface of the handle 132, and when the handle 132 rotates, the upper surface can slide along the lower surface of the guide bar 134, and the guide bar 134 can limit the handle 132 from deflecting upwards away from one end of the hinge shaft 131.

As shown in fig. 9, the filling device 2 comprises a pipe assembly 21 and a positioning and resetting mechanism 22 for driving the pipe assembly 21 into or out of a run-flat tire (see fig. 1) to reach a corresponding station or return to an original position.

As shown in fig. 9 and 10, the positioning and resetting mechanism 22 includes a retracting mechanism 221 that drives the pipe assembly 21 to vertically move up and down, and a rotating assembly 222 that drives the pipe assembly 21 to synchronously rotate. The retracting mechanism 221 comprises a fixed plate 2211 and a movable plate 2212 positioned below the fixed plate 2211, a vertical air cylinder 2213 is arranged on the fixed plate 2211, a cylinder body of the air cylinder 2213 is fixedly connected with the fixed plate 2211, a piston rod penetrates through the fixed plate 2211 to be fixedly connected with the upper surface of the movable plate 2212, and the air cylinder 2213 can drive the movable plate 2212 to vertically move up and down when stretching and contracting. The pipe assembly 21 is fixedly connected with the movable plate 2212, and the movable plate 2212 can drive the pipe assembly 21 to move up and down when moving up and down. The number of the pneumatic cylinders 2213 can be three, and the pneumatic cylinders 2213 are distributed around the central circumference array of the fixed plate 2211, so that the movable plate 2212 can be driven to move up and down more stably.

As shown in fig. 11, the duct assembly 21 includes a glue-spraying pipe 211 for spraying glue, a feeding pipe 212 for filling particles, an air pipe 213 for homogenizing the thickness of the filler, and an air duct 214 for drying the filler. Referring to fig. 10, the feeding pipe 212 and the air duct 214 are slidably coupled to the splicing pipe 215 between the fixed plate 2211 and the movable plate 2212, and the lower ends of the feeding pipe 212 and the air duct 214 are drawn and inserted along the splicing pipe 215 when moving up and down, and the splicing pipe 215 can keep the feeding pipe 212 and the air duct 214 in communication with a section located below the movable plate 2212 and a section located above the fixed plate 2211. Hose 216 is fixedly connected to hose 211 and air tube 213 between fixed plate 2211 and movable plate 2212, hose 216 can be bent and straightened when movable plate 2212 moves up and down, and hose 216 maintains the section of hose 211 and air tube 213 under movable plate 2212 in communication with the section above fixed plate 2211.

As shown in fig. 9, 10 and 13, the rotating assembly 222 is located between the movable plate 2212 and the fixed plate 2211, the rotating assembly 222 includes driven linkage wheels 2221 fixedly sleeved with the glue spraying pipe 211, the feeding pipe 212, the air duct 214 and the air duct 213 respectively, the driven linkage wheels 2221 are located on the same horizontal plane, the rotating assembly 222 further includes a main shaft 2222 rotatably connected to the central position of the movable plate 2212, the main shaft 2222 is fixedly sleeved with a driving linkage wheel 221, a circle of linkage chain 2224 is serially wound around the outer ring of the driving linkage wheel 221 and the outer ring of the driven linkage wheel 2221, and when the driving linkage wheel 221 rotates, each driven linkage wheel 2221 can be driven to rotate, so as to drive each pipeline to synchronously rotate.

The rotating assembly 222 is covered with a cover 2225 fixedly connected to the upper surface of the movable plate 2212, and the cover 2225 can reduce dust in the air from entering the rotating assembly 222. A driving motor 6 is arranged on the housing 2225, a housing of the driving motor 6 is fixedly connected with the housing 2225, an output shaft is fixedly connected with the main shaft 2222, and the driving motor 6 can drive the main shaft 2222 to rotate so as to drive the rotating assembly 222 to rotate.

As shown in fig. 13 and 14, the lower end of the glue spraying tube 211 is fixedly connected with a glue spraying head 217, the glue spraying head 217 extends into the inside of the run-flat tire during operation, and one surface of the glue spraying head 217, which is close to the inner wall of the run-flat tire, is provided with evenly distributed glue spraying holes 2171 communicated with the glue spraying tube 211, and the glue spraying holes are used for evenly spraying glue to the inner wall of the run-flat tire.

As shown in fig. 14 and 15, the lower end of the feeding pipe 212 is provided with a curved section, and in operation, the port faces the inner wall of the run-flat tire for inputting the filler into the run-flat tire, the filler is subjected to a certain centrifugal force when the run-flat tire rotates, the filler is attached to the inner wall of the run-flat tire, and the filler is gradually adhered and bonded together under the adhesion effect of the glue.

As shown in fig. 16, the lower end of the air pipe 213 is fixedly connected with a jet head 218, a cavity 2181 communicated with the air pipe 213 is arranged in the jet head 218, a jet port 2182 is arranged on one surface of the jet head 218, and after the air pipe 213 inputs air into the cavity 2181, the air pressure in the cavity 2181 is increased and is jetted out from the jet port 2182.

Referring to fig. 17 and 18, the filler is in a solid-liquid mixed state when the glue is not solidified, and moves downward under the action of gravity, so that the thickness of the filler at the lower part is greater than that of the filler at the upper part. When the jet head 218 works, the jet opening 2182 faces the inner wall of the explosion-proof tire, the width of the jet opening 2182 is gradually increased from top to bottom in the vertical direction, gas is rubbed and extruded with outside air after being jetted from the jet opening 2182, and is extruded with filler attached to the inner wall of the tire after losing part of kinetic energy, and the gas flow jetted from the upper part of the jet opening 2182 is small in flow of gas from the lower part, so that the thrust of the filler on the inner wall of the explosion-proof tire, which is impacted by the gas, is gradually increased from top to bottom. The lower filler is pressed upwards, so that the thickness difference between the upper filler and the lower filler is reduced, and the thickness of the filler attached to the inner wall of the run-flat tire is uniform at different positions. The direction that the gas outlet of trachea 213 is oriented is perpendicular with the side of jet 218 and is located the intermediate position of jet 2182 vertical direction, and after gas was spouted cavity 2181 from trachea 213, the diffusion was full of cavity 2181, and the time of gas arrival jet 2182 different high positions was relatively near, and the atmospheric pressure that produces at jet 2182 different high positions department is relatively even, and the air inlet that trachea 213 and cavity 2181 are linked together is rectangular, and the length direction of air inlet is the same with vertical direction, and the time that the diffusion was taken to cavity 2181 upper portion inner wall and lower part inner wall after the gas got into cavity 2181 is relatively near, and the atmospheric pressure that produces at the inside different positions of cavity 2181 is relatively even. An arc transition surface 2183 is arranged between adjacent inner walls of the cavity 2181 and is used for reducing stress concentration between the adjacent inner walls of the cavity 2181.

As shown in fig. 19 and 20, the lower end of the air duct 214 is fixedly connected with a blowing head 219, and an air outlet 2191 of the blowing head 219 forms a certain included angle with the diameter direction of the run-flat tire and is inclined towards the direction opposite to the rotation direction of the run-flat tire. The air duct 214 is used for delivering hot air to the air blowing head 219, and the hot air is blown out from the air outlet 2191 and then contacts with the duplicated filler on the inner wall of the run-flat tire, so that the filler is dried, and the filler is solidified and shaped relatively quickly.

As shown in fig. 14 and 20, the rotation of the pipe assembly 21 can rotate the glue nozzle 217, the air nozzle 218, the air nozzle 219 and the discharge port of the feeding pipe 212 into or out of the inside of the run-flat tire, the up-and-down movement of the pipe assembly 21 can extend the glue nozzle 217, the air nozzle 218, the air nozzle 219 and the discharge port of the feeding pipe 212 into or out of the inside of the run-flat tire, and the up-and-down movement and rotation can extend the glue nozzle 217, the air nozzle 218, the air nozzle 219 and the discharge port of the feeding pipe 212 into or out of the inside of the run-flat tire to facilitate glue spraying, filling, thickness homogenization and drying.

After the processing of the explosion-proof tire is completed and assembled, the appearance structure is shown in fig. 24, the tire comprises a hub with an inner ring and a tire body with a cylindrical outer surface fixedly connected to the outer side of the hub, as shown in fig. 25 and 26, fillers (small circles arranged in fig. 25 and 26 indicate fillers) are filled on the inner wall of the tire body, 360-degree filling is carried out around the central axis, and the fillers are located at positions, far away from the central axis, of the inner wall of the tire body.

The working process comprises the following steps: firstly, an explosion-proof tire is mounted on a clamping turntable 14, then a pneumatic cylinder 2213 is started to drive a movable plate 2212 to move downwards, the movable plate 2212 drives a glue spraying head 217, a jet head 218, a blowing head 219 and a discharge hole of a feeding pipe 212 to move downwards to the inner side of the explosion-proof tire and be positioned between the upper surface and the lower surface of the explosion-proof tire, then a driving motor 6 is started, the driving motor 6 drives a rotating assembly 222 to operate, and the rotating assembly 222 drives the glue spraying head 217, the jet head 218, the blowing head 219 and the discharge hole of the feeding pipe 212 to rotate and insert into the explosion-proof tire, so that the glue spraying hole, the air spraying hole 2182, the air outlet 2191 and the discharge hole face the inner wall of the explosion-proof tire; at this time, the motor 5 is started, the clamping turntable 14 and the explosion-proof tire are driven to rotate through the transmission mechanism 15, glue is sprayed to the inner wall of the explosion-proof tire through the glue spraying port, then the filler is conveyed into the explosion-proof tire through the feeding port, and then enters the explosion-proof tire to rotate together with the explosion-proof tire and is subjected to centrifugal force, the filler is thrown on the inner wall of the explosion-proof tire, the filler and the glue sprayed on the inner wall of the explosion-proof tire are contacted with each other and are gradually adhered to the inner wall of the explosion-proof tire, and the filler is subjected to certain gravity and moves downwards before solidification, at this time, the air spraying head 218 sprays air to the filler attached on the inner wall of the explosion-proof tire, the air pressure at the lower part is larger than the air pressure at the upper part, and the air pressure difference between the upper part and the lower part generates thrust difference to the upper part and the lower part of the filler, so that the filler at the lower part is gradually lifted upwards, and the phenomenon of uneven thickness of the filler caused by gravity can be eliminated to a certain extent; the air duct 214 supplies hot air to the air blowing head 219, and the hot air blows in a direction opposite to the rotation direction of the run-flat tire, and the hot air contacts with the filler and dries the filler.

Example 2: unlike embodiment 1, as shown in fig. 21 and 22, the lifting structure is a tray 146, the clamping structure is a sleeve 147 fixedly connected to the tray 146, the run-flat tire is sleeved inside the sleeve 147 during operation, the upper surface of the tray 146 supports the lower surface of the run-flat tire, and the inner wall of the sleeve 147 is abutted against the outer column surface of the anti-run-flat tire to limit the run-flat tire from moving in the horizontal direction. When the tray 146 rotates, friction between the sleeve 147 and the surface of the tray 146 and the run-flat tire drives the run-flat tire to rotate together. The inner wall edge of the upper end of the sleeve 147 is provided with a chamfer 1471 to facilitate placement of a run-flat tire inside the sleeve 147.

As shown in fig. 22, a plastic pad 148 is fixedly connected to the inner wall of the sleeve 147, so as to increase the friction between the inner wall of the sleeve 147 and the outer cylindrical surface of the run-flat tire, so that the sleeve 147 can more easily drive the run-flat tire to rotate.

As shown in fig. 23, the transmission mechanism 15 includes a driven gear 154 fixedly sleeved on the rotating shaft 16 and a driving gear 155 meshed with the driven gear 154, the driving device may be a motor 5, an output shaft of the motor 5 is vertically arranged and fixedly connected with the driving gear 155, a base of the motor 5 is fixedly connected with the bottom plate 11, and the driven gear 154 and the rotating shaft 16 are driven to rotate by the driving gear 155 during operation of the motor 5. The diameter of the driven gear 154 is larger than that of the driving gear 155, the rotation speed of the driven gear 154 is smaller than that of the driving gear 155, the rotation speed of the rotating shaft 16 is smaller than that of the output shaft of the motor 5, and the excessive rotation speed of the rotating shaft 16 can be avoided.

The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.

Claims

1. A positioning and resetting mechanism of an explosion-proof tire filling device is characterized in that: comprises a retracting mechanism (221) for driving the pipeline assembly (21) to vertically move up and down and a rotating assembly (222) for driving the pipeline assembly (21) to synchronously rotate;

the retracting mechanism (221) comprises a fixed plate (2211) and a movable plate (2212) positioned below the fixed plate (2211), wherein a telescopic piece which drives the movable plate (2212) to vertically move up and down when the telescopic piece stretches is fixedly connected to the fixed plate (2211); the pipeline assembly (21) comprises a glue spraying pipe (211) for spraying glue to the inner wall of the run-flat tire and a feeding pipe (212) for conveying particles to the inside of the run-flat tire, and the glue spraying pipe (211) and the feeding pipe (212) are fixedly connected with the movable plate (2212);

the pipeline assembly (21) further comprises an air pipe (213) for homogenizing the thickness of the filler and an air duct (214) for drying the filler, the feeding pipe (212) and the air duct (214) are fixedly connected with a hose (216) between the fixed plate (2211) and the movable plate (2212), the hose (216) can be bent and straightened when the lower ends of the feeding pipe (212) and the air duct (214) move up and down along the splicing pipe (215), the hose (216) can enable the feeding pipe (212) and the air duct (214) to be communicated with one section below the movable plate (2212) and the upper surface of the fixed plate (2211), and the hose (211) and the air duct (213) are fixedly connected with the hose (216) between the fixed plate (2211) and the movable plate (2212), and when the movable plate (2212) moves up and down, the hose (216) can be bent and straightened, and the hose (216) can enable the hose (211) and the hose (213) to be communicated with one section below the movable plate (2212) and one section above the fixed plate (2211);

the air pipe (213) lower extreme fixedly connected with jet head (218), jet head (218) inside be equipped with cavity (2181) that air pipe (213) are linked together, jet head (218) one side is equipped with jet (2182), air pipe (213) to after the gas is input in cavity (2181), the inside atmospheric pressure of cavity (2181) rises and follow jet (2182) blowout, be equipped with circular arc transitional surface (2183) between the adjacent inner wall of cavity (2181), the width of jet (2182) is from top to bottom increase gradually in the vertical direction.

2. A positioning and resetting mechanism for a run-flat tire filling device as in claim 1, wherein: the rotary assembly (222) comprises a driven linkage wheel (2221) fixedly connected with the spraying pipe (211) and the feeding pipe (212), a driving linkage wheel (2223) rotatably connected with the movable plate (2212) and a circle of linkage chain (2224) wound on the driving linkage wheel (2223) and the driven linkage wheel (2221), wherein the driving linkage wheel (2223) is fixedly connected with an output shaft of the driving motor (6).

3. A positioning and resetting mechanism for a run-flat tire filling device as in claim 1, wherein: the telescopic piece is a pneumatic cylinder (2213), the cylinder body is fixedly connected with the fixed plate (2211), and the piston rod is fixedly connected with the movable plate (2212).

4. A positioning and resetting mechanism for a run-flat tire filling device as in claim 3, wherein: the number of the pneumatic cylinders (2213) is more than three.

5. A positioning and resetting mechanism for a run-flat tire filling device as in claim 1, wherein: the rotating assembly (222) is externally covered with a housing (2225).