Detection device for automobile tire production

Abstract

The invention discloses a detection device for automobile tire production, and relates to the technical field of detection devices.The detection device comprises a cylindrical cavity which is defined by a shell, the axis of the cylindrical cavity is horizontally arranged, and a circular opening communicating with the cylindrical cavity is formed in the center of the front face of the shell; the plugging mechanism comprises a plugging plate and a transverse driving assembly, and the transverse driving assembly is used for driving the plugging plate to move horizontally so as to close or open the circular opening; the tire loading mechanism comprises a vertical moving assembly connected to the plugging plate in a sliding manner, a tire fixing assembly rotationally mounted on the vertical moving assembly, and a rotation driving assembly for driving the tire fixing assembly to rotate; the road condition simulation detection mechanism comprises an annular rotating body, a locking assembly and a gravel circulation assembly. Compared with a traditional detection device, simulation detection of more than six road conditions is achieved in a single device, the detection cost is reduced, material waste is reduced through gravel closed-loop circulation, and the green manufacturing standard is met.

Description

Technical Field

[0001] The invention relates to the technical field of detection devices, in particular to a detection device for automobile tire production. Background Art

[0002] During the production of automobile tires, wear resistance testing is the core link to ensure tire quality. Traditional testing devices mostly use a single site to simulate specific working conditions (such as a drum tester to test rolling resistance and a friction platform to test wear resistance). The testing scene is fragmented and cannot reproduce the complex working conditions of gravel impact and alternating multiple road conditions in real roads.

[0003] Chinese patent publication number CN117606824B discloses a wear resistance detection device for tire manufacturing. Although the patent realizes basic load simulation and local testing through a detachable road simulation plate and a liftable tire mounting assembly, it still has the following defects that are seriously mismatched with production needs: Low load simulation efficiency: There is a gap error in the mechanical transmission of the hydraulic cylinder and the linkage rod, which leads to a long time for single load pressurization and cannot meet the rhythm requirements of continuous detection; cumbersome road condition switching: the panel installation assembly relies on a multi-stage screw to adjust the height, and manual operation is required to replace the simulation panel, which seriously affects the mixed-line detection efficiency of multiple batches of tires, and dynamic detection of tires cannot be performed; poor environmental adaptability: the open structure causes gravel to splash, and the gravel is difficult to recover, causing noise pollution, which does not meet the safety production standards of automobile factories. Summary of the invention

[0004] The object of the present invention is to provide a detection device for automobile tire production to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: The present invention provides a detection device for automobile tire production, comprising: A cylindrical cavity is surrounded by a shell and the axis is arranged horizontally. A circular opening connected to the cylindrical cavity is opened at the center of the front side of the shell. The cylindrical cavity at the periphery of the circular opening extends radially outward to form an annular detection area. The lower half of the annular detection area is defined as a tire detection area. A blocking mechanism, comprising a blocking plate and a transverse driving assembly, wherein the transverse driving assembly is used to drive the blocking plate to move horizontally to close or open the circular opening; The tire loading mechanism comprises a vertical moving assembly slidably connected to the blocking plate, a tire fixing assembly rotatably mounted on the vertical moving assembly, and a rotation driving assembly drivingly connected to the tire fixing assembly to drive the tire fixing assembly to rotate around its own axis; A road condition simulation detection mechanism, which includes a ring-shaped rotating body, a locking assembly and a gravel circulation assembly; The annular rotating body is rotatably assembled in the annular detection area, and a first annular detection surface and a second annular detection surface with different radii are formed on the inner side thereof, wherein the first annular detection surface has detection plates with different roughness distributed along the circumference, and the second annular detection surface is arranged adjacent to the circular opening; the locking assembly is configured to limit or release the rotation of the annular rotating body; with the vertical plane passing through the central axis of the cylindrical cavity as the set plane, the gravel circulation assembly is configured to make the gravel continuously roll on the second annular detection surface from the left side to the right side of the set plane.

[0006] Furthermore, the shell is composed of a cylindrical outer shell and a detachable annular side plate, one end of the cylindrical outer shell is open, the annular side plate is installed at the open end, and the inner side of the annular side plate forms the circular opening; a supporting member is provided at the bottom of the cylindrical outer shell.

[0007] Furthermore, the blocking mechanism also includes a positioning bracket arranged on the shell near the circular opening, the blocking plate is horizontally slidably installed on the positioning bracket through a sliding pair, and the size of the blocking plate along the moving direction is greater than the axial length of the circular opening; the lateral drive assembly includes a pair of electric push rods, the electric push rods are symmetrically arranged on both sides of the positioning bracket, and the telescopic ends of the electric push rods are connected to the blocking plate; the positioning bracket is provided with a photoelectric sensor for real-time monitoring of the closing position of the blocking plate.

[0008] Furthermore, the blocking plate is penetrated by a strip-shaped slide groove extending downward from the center of the circle, and the vertical moving component includes a sliding seat slidably assembled in the strip-shaped slide groove, a sealing plate vertically fixed on the top of the sliding seat, and a hydraulic push rod, wherein the hydraulic push rod is fixed on the outside of the blocking plate, and the telescopic end of the hydraulic push rod is connected to the sliding seat.

[0009] Furthermore, the tire fixing assembly includes a rotating shaft that horizontally passes through the sliding seat and rotates with the sliding seat, and a limiting structure arranged on the rotating shaft near one end of the shell; the limiting structure includes a fixed plate fixed to the rotating shaft and a movable plate threadedly connected to the rotating shaft, and an adjustment handle is provided on the movable plate; the rotation drive assembly is a first servo motor fixed on the sliding seat, and the output end of the first servo motor is connected to the rotating shaft through a coupling.

[0010] Further, the annular rotating body includes an internal structure and an adjustment structure connected to each other; The internal structure comprises a rotating ring coaxially arranged in the annular detection area and a circular end plate connected to the rotating ring on the side away from the circular opening; an annular gap is arranged between the rotating ring and the cylindrical cavity, and rollers are evenly distributed in the annular gap; the first annular detection surface and the second annular detection surface are arranged on the inner side of the rotating ring; The adjustment structure comprises a connecting shaft coaxially fixed on the side of the circular end plate away from the circular opening, and one end of the connecting shaft away from the circular end plate passes through the back side wall of the shell and is connected to a supporting seat rotatably matched therewith.

[0011] Furthermore, the locking assembly includes an annular rotating frame, a limiting cylinder and a pneumatic latch; the annular rotating frame is fixed to one end of the connecting shaft away from the circular end plate, and limiting holes are evenly arranged on the edge of the annular rotating frame; the limiting cylinder is fixed on the support seat, and the pneumatic latch is arranged in the limiting cylinder, and the pneumatic latch can be inserted into the limiting hole to lock the annular rotating body; the number of the detection plates is the same as the number of the limiting holes, and the detection plates and the limiting holes are arranged correspondingly.

[0012] Furthermore, a feed inlet and a discharge inlet are respectively provided on the annular side plates on the left and right sides of the tire detection area; The gravel circulation assembly comprises a material guide shell, a material guide plate and a spiral feeding mechanism; The material guide shell is provided with a material storage cavity and a material guide channel, the input end of the material guide channel is connected to the material outlet, the output end of the material guide channel is connected to the material storage cavity, and the height of the material storage cavity is lower than the material outlet; The material guide plate is in sliding contact with the second annular detection surface, one end of the material guide plate passes through the material discharge port and is fixed to the upper side wall of the material guide channel, the other end of the material guide plate extends to contact the vertical surface where the second annular detection surface and the first annular detection surface meet, a first inclined surface inclined downward is provided on the side of the material guide plate close to the set plane, and a second inclined surface inclined upward is provided on the side of the material guide plate away from the set plane; The spiral feeding mechanism includes a feeding cylinder, a discharging cylinder, a spiral conveying shaft and a second servo motor; The feeding barrel is arranged obliquely, and the lower end of the feeding barrel extends to the bottom of the storage chamber, and the upper end of the feeding barrel is connected to the feeding port through the discharging barrel to form a closed circulation path; the screw conveying shaft is rotatably assembled in the feeding barrel, and the second servo motor is used to drive the screw conveying shaft to rotate.

[0013] Furthermore, it also includes a comprehensive control system, which integrates a mode switching module and a load adjustment module; The mode switching module is used to control the locking assembly to switch between a fixed friction mode and a dynamic rolling mode; The load adjustment module is used to automatically adjust the vertical loading force of the hydraulic push rod according to the tire specifications.

[0014] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects: The present invention realizes full-dimensional tire performance testing through integrated design and multi-mechanism collaboration. The specific advantages are as follows: 1. The present invention integrates dual-mode tests: in static mode, the annular rotating body is fixed by a locking assembly, so that the tire can quickly rub against the detection plates of different roughness in a directional manner, and accurately quantify the wear resistance and grip of multiple road conditions such as ice and asphalt; in dynamic mode, the tire drives the annular rotating body to passively rotate, and cooperates with the continuous impact of the gravel circulation assembly to synchronously detect the composite wear characteristics of rolling friction and dynamic gravel impact.

[0015] 2. The present invention forms a closed space through the cylindrical cavity and the blocking plate, and combines the gravel guiding design of the guide plate to avoid gravel splashing and reduce noise; the modular shell supports quick disassembly and maintenance.

[0016] 3. The present invention can automatically match the vertical load according to the tire specifications. The spiral feeding mechanism controls the impact density of gravel by changing the speed, accurately simulating complex scenes such as gravel roads and cobblestone roads.

[0017] In summary, compared with traditional detection devices, the present invention can realize more than 6 types of road condition simulation detection in a single device, reduce detection costs, reduce material waste through closed-loop recycling of gravel, and meet green manufacturing standards.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the cylindrical cavity and tire loading mechanism structure of the present invention; Figure 4 It is a schematic structural diagram of the blocking mechanism and the tire loading mechanism of the present invention from a first perspective; Figure 5 It is a structural schematic diagram of the blocking mechanism and the tire loading mechanism of the present invention from a second viewing angle; Figure 6 It is a structural schematic diagram of the tire after being loaded onto the tire loading mechanism of the present invention; Figure 7 It is a schematic diagram of the structure of the housing and the annular rotating body of the present invention after being separated from each other from the first perspective; Figure 8 It is a schematic diagram of the structure of the present invention from a second viewing angle after the housing and the annular rotating body are separated; Fig. 9It is a schematic diagram of the structure of the gravel circulation component and the shell after being disassembled.

[0021] In the figure: 1- cylindrical cavity; 11- shell; 111- cylindrical shell; 112- annular side plate; 1121- feed inlet; 1122- discharge outlet; 113- support member; 12- circular opening; 2-blocking mechanism; 21-blocking plate; 211-strip chute; 22-lateral drive assembly; 23-positioning bracket; 3-tire loading mechanism; 31-vertical moving assembly; 311-sliding seat; 312-sealing plate; 313-hydraulic push rod; 32-tire fixing assembly; 321-rotating shaft; 322-limiting structure; 3221-fixed disk; 3222-movable disk; 33-rotation driving assembly; 4-Road condition simulation detection mechanism; 41-Annular rotating body; 411-First annular detection surface; 412-Second annular detection surface; 413-Detection plate; 414-Internal structure; 4141-Rotating ring; 4142-Circular end plate; 415-Adjustment structure; 4151-Connecting shaft; 4152-Support seat; 416-Roller; 42-Locking assembly; 421-Annular rotating frame; 4211-Limiting hole; 422-Limiting cylinder; 423-Pneumatic latch; 43-Gravel circulation assembly; 431-Guiding shell; 4311-Storage cavity; 4312-Guiding channel; 432-Guiding plate; 4321-First inclined surface; 4322-Second inclined surface; 433-Spiral feeding mechanism; 4331-Feeding cylinder; 4332-Discharging cylinder; 4333-Spiral conveying shaft; 4334-Second servo motor; 5- Tire inspection area. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] See also Figure 1-Figure 9 The present invention provides a detection device for automobile tire production, including a cylindrical cavity 1, a blocking mechanism 2, a tire loading mechanism 3 and a road condition simulation detection mechanism 4.

[0024] The cylindrical cavity 1 is surrounded by a shell 11 and the axis is arranged horizontally. A circular opening 12 communicating with the cylindrical cavity 1 is provided at the center of the front side of the shell 11. The cylindrical cavity 1 at the periphery of the circular opening 12 extends radially outward to form an annular detection area. The lower half of the annular detection area is defined as a tire detection area 5. The blocking mechanism 2 includes a blocking plate 21 and a transverse driving assembly 22, wherein the transverse driving assembly 22 is used to drive the blocking plate 21 to move horizontally to close or open the circular opening 12; Combination Figure 1 and Figure 2 As shown, the tire loading mechanism 3 includes a vertical moving assembly 31 slidably connected to the blocking plate 21, a tire fixing assembly 32 rotatably mounted on the vertical moving assembly 31, and a rotation driving assembly 33 drivingly connected to the tire fixing assembly 32 to drive it to rotate around its own axis; like Figure 2 As shown, the road condition simulation detection mechanism 4 includes an annular rotating body 41, a locking assembly 42 and a gravel circulation assembly 43; The annular rotating body 41 is rotatably assembled in the annular detection area, and a first annular detection surface 411 and a second annular detection surface 412 of different radii are formed on the inner side of the annular rotating body 41, wherein the first annular detection surface 411 is provided with detection plates 413 of different roughness distributed along the circumference, and the second annular detection surface 412 is arranged adjacent to the circular opening 12; the locking assembly 42 is configured to limit or release the rotation of the annular rotating body 41; with the vertical plane passing through the central axis of the cylindrical cavity as the set plane, the gravel circulation assembly 43 is configured to make the gravel continuously roll on the second annular detection surface 412 from the left side to the right side of the set plane.

[0025] Through the above settings, the device can perform dual-mode tests on tires in a sealed environment (simulated friction tests of different road conditions in static mode and simulated tests of rolling gravel impact in dynamic mode), achieving full-dimensional testing of tires from basic performance to complex working conditions, solving the problem of insufficient single testing scenarios in traditional technologies. Specifically: The device constructs a closed detection environment by enclosing a cylindrical cavity 1 and a sealing mechanism 2 formed by a shell 11, which can prevent gravel splashing or external interference during the detection process, and at the same time avoid the overflow of noise during the detection process. When in use, the operator only needs to fix the tire on the tire fixing component 32 of the tire loading mechanism 3, and push the sealing plate 21 to move horizontally through the lateral driving component 22, so that the tire can be automatically moved into the cylindrical cavity 1 for dual-mode testing.

[0026] In the static mode test, the tire performance test process is as follows: first, the tire is positioned inside the first annular test surface 411, and then the annular rotating body 41 is rotated according to the test requirements to accurately align the target roughness test plate 413 (such as gravel, asphalt or ice surface simulation plate) with the tire test area 5, and the rotating body is fixed by the locking assembly 42. After the positioning is completed, the vertical moving assembly 31 is started to drive the tire fixing mechanism to press down so that the tire is fully in contact with the selected test plate 413. Finally, the tire is driven by the rotation drive assembly 33 to rotate and rub on the selected test plate 413 to achieve standardized evaluation of tire performance in multiple working conditions (such as wear resistance and grip).

[0027] In the dynamic mode test, the dynamic evaluation process of tire performance is as follows: first, the tire is positioned to the inside of the second annular detection surface 412, and the locking assembly 42 is released to allow the annular rotating body 41 to be in a free rotation state; the tire is pressed down by the vertical drive system to make it fully contact with the second annular detection surface 412, and the rotation drive assembly 33 actively drives the tire to rotate, and the friction transmission drives the annular rotating body 41 to passively operate, simulating the rolling friction effect of a real road surface. In the above process, the gravel circulation assembly 43 can be started to form a closed-loop flow of gravel on the second annular detection surface 412, so that the gravel concentrates on the tire tread, and the wear characteristics of the tire under the combined conditions of rolling friction and dynamic gravel impact are tested.

[0028] Combination Figure 1 and Figure 7 As shown, in this embodiment, the shell 11 adopts a modular design, and the shell 11 consists of a cylindrical shell 111 and a detachable annular side plate 112, wherein the cylindrical shell 111 is a horizontal axis cylindrical structure, one end of the cylindrical shell 111 is open, and a supporting member 113 is provided at the bottom of the cylindrical shell 111 to enhance the overall stability and prevent test vibration interference, the annular side plate 112 is installed at the open end of the cylindrical shell 111, and a circular opening 12 (tire detection entrance) is formed on the inner side of the annular side plate 112, and the annular side plate 112 is detachable to maintain or replace the mechanism inside the cylindrical cavity 1, and the annular detection area is surrounded by the inner wall of the cylindrical shell 111 and the annular side plate 112.

[0029] Combination Figure 1 and Figure 2 As shown, in this embodiment, the blocking mechanism 2 also includes a positioning bracket 23 arranged on the shell 11 near the circular opening 12. The positioning bracket 23 is fixed to the shell 11 near the circular opening 12 and serves as a sliding track base for the blocking plate 21 to ensure the linear accuracy of the horizontal movement of the blocking plate 21. The blocking plate 21 is connected to the positioning bracket 23 through a high-precision sliding pair to achieve horizontal sliding without offset.

[0030] The blocking plate 21 is adapted to the circular opening 12 and adopts a thickened design, that is, the width of the blocking plate 21 along the moving direction is greater than the axial length of the circular opening 12, so as to ensure that the tire can correspond to the first annular detection surface 411 and the second annular detection surface 412 respectively by changing the position of the blocking plate 21 while blocking the circular opening 12.

[0031] The lateral drive assembly 22 includes a pair of electric push rods, which are symmetrically arranged on both sides of the positioning bracket 23. The telescopic ends of the electric push rods are fixedly connected to the blocking plate 21. Bidirectional constant-speed driving is achieved by synchronously controlling the electric push rods to avoid jamming or eccentric wear caused by unilateral pressure.

[0032] The positioning bracket 23 is provided with a photoelectric sensor (not shown), which monitors the position of the blocking plate 21 in real time to control the closing position of the blocking plate 21 so that the tire can correspond to the first annular detection surface 411 and the second annular detection surface 412 respectively.

[0033] Combination Figure 4-Figure 6 As shown, in the present embodiment, the blocking plate 21 is penetrated by a strip groove 211 extending downward from the center of the circle, and the vertical moving component 31 comprises a sliding seat 311 slidably assembled in the strip groove 211, a sealing plate 312 vertically fixed on the top of the sliding seat 311, and a hydraulic push rod 313; wherein, the strip groove 211 serves as a movement guide track of the sliding seat 311 to limit the sliding direction of the sliding seat 311 and ensure the neutrality of the tire loading; the sealing plate 312 is tightly attached to the outer wall of the blocking plate 21 to form a dynamic sealing interface to prevent gravel and dust from entering the strip groove 211, the hydraulic push rod 313 is fixed to the outside of the blocking plate 21, and the telescopic end of the hydraulic push rod 313 is connected to the sliding seat 311, and the sliding seat 311 is driven to move by the telescopic movement of the hydraulic push rod 313, thereby driving the tire to move and complete the loading of the detection surface.

[0034] Specifically, the thrust range of the hydraulic push rod 313 is 200 to 1000N. The system pre-stores pressure parameters for different test scenarios (such as 200N for ice surface test and 1000N for gravel road surface test) and supports one-key call.

[0035] like Figure 4 As shown, in this embodiment, the tire fixing assembly 32 includes a rotating shaft 321 that horizontally penetrates the sliding seat 311. The rotating shaft 321 forms a rotating pair with the sliding seat 311 through a high-precision bearing, ensuring that the tire remains stationary with the sliding seat 311 when rotating (that is, the rotation and lifting motions are separated by the bearing to avoid mutual interference), thereby achieving decoupling of lifting and rotation motions.

[0036] Furthermore, a labyrinth seal structure of conventional technology may be provided at the bearings of the rotating shaft 321 and the sliding seat 311 for sealing, so as to prevent gravel particles from invading the rotating pair and causing wear.

[0037] like Figure 4 As shown, the tire fixing assembly 32 also includes a limiting structure 322; the limiting structure 322 includes a fixed plate 3221 and a movable plate 3222 threadedly connected to the rotating shaft 321, and an adjustment handle is provided on the movable plate 3222; when in use, the fixed plate 3221 serves as a tire installation reference surface, and the operator moves the movable plate 3222 by rotating the adjustment handle to make the distance between the fixed plate 3221 and the movable plate 3222 match the wheel hub width of the tire, and confirms that the clamping force meets the standard (such as Figure 6 As shown in the figure, the rotation driving assembly 33 is a first servo motor fixed to the sliding seat 311, and the output end of the first servo motor is connected to the rotating shaft 321 through a coupling to drive the tire to rotate.

[0038] Combination Figure 7 and Figure 8 As shown, in this embodiment, the annular rotating body 41 includes an internal structure 414 and an adjustment structure 415 that are interconnected; the internal structure 414 includes a rotating ring 4141 and a circular end plate 4142, wherein the rotating ring 4141 is coaxially arranged in the annular detection area, and the inner side of the rotating ring 4141 is provided with the first annular detection surface 411 (multi-road condition simulation) and the second annular detection surface 412 (gravel impact surface), and the radii of the two are different to adapt to different test modes; the circular end plate 4142 is fixed to the side of the rotating ring 4141 away from the circular opening 12, serving as a rigid support end cover of the rotating ring 4141 to prevent radial deformation.

[0039] Furthermore, an annular gap is provided between the rotating ring 4141 and the inner wall of the cylindrical cavity 1, and high-precision rollers 416 (the number is ≥24) are evenly distributed in the gap, and the axis of the rollers 416 is parallel to the axis of the annular rotating body 41; the rollers 416 bear the weight of the rotating ring 4141, converting the sliding friction into rolling friction, reducing the rotation resistance of the rotating ring 4141, and realizing low-power and smooth rotation; like Figure 8 As shown, the adjustment structure 415 includes a connecting shaft 4151 and a supporting seat 4152; wherein the connecting shaft 4151 is coaxially fixed to the outside of the circular end plate 4142 and passes through the back side wall of the housing 11. The connecting shaft 4151 can be used as a power input / output interface, and the outer end of the connecting shaft 4151 can be connected to a driving motor or a manual rotation mechanism (test mode switching).

[0040] The support seat 4152 is fixed to the outer side of the back side of the shell 11 , and the support seat 4152 is rotatably connected to the connecting shaft 4151 to provide axial positioning and radial support, and withstand the overturning moment of the rotating ring 4141 .

[0041] like Figure 8As shown, in this embodiment, the locking assembly 42 includes an annular rotating frame 421, a limiting cylinder 422 and a pneumatic plug 423. The annular rotating frame 421 is fixed to the end of the connecting shaft 4151 (the end away from the circular end plate 4142), so that it can rotate coaxially with the connecting shaft 4151; limiting holes 4211 (the number corresponds to the detection plate 413) are evenly arranged on the edge of the annular rotating frame 421 to match the switching requirements of the detection plate 413, the limiting cylinder 422 is fixed to the side of the support seat 4152, and the pneumatic plug 423 is integrated inside it, the diameter of the pneumatic plug 423 is matched with the limiting hole 4211, and when the pneumatic plug 423 is inserted into the limiting hole 4211, the annular rotating frame 421 can be radially positioned.

[0042] In this specific embodiment, there are 6 limit holes 4211, the number of detection plates 413 is the same, and the detection plates 413 are arranged corresponding to the limit holes 4211, and each detection plate corresponds to a road condition, thereby achieving accurate binding of position and road condition.

[0043] like Fig. 9 As shown, in this embodiment, the annular side plates 112 on the left and right sides of the tire detection area 5 are respectively provided with a feed port 1121 and a discharge port 1122; the gravel circulation assembly 43 includes a guide shell 431, a guide plate 432 and a spiral feeding mechanism 433; The guide shell 431 is provided with a storage cavity 4311 and a guide channel 4312. The input end of the guide channel 4312 is connected to the discharge port 1122 to collect the crushed stones after impact. The output end of the guide channel 4312 is connected to the storage cavity 4311. The height of the storage cavity 4311 is lower than the discharge port 1122. The height difference is used to form a natural inclination angle, so that the crushed stones automatically slide into the storage cavity 4311 through the guide channel 4312. The bottom side surface of the guide plate 432 maintains sliding contact with the second annular detection surface 412, one end of the guide plate 432 passes through the discharge port 1122 and is fixed to the upper side wall of the guide channel 4312, and the other end of the guide plate 432 extends to contact the vertical surface at the junction of the second annular detection surface 412 and the first annular detection surface 411, and the side of the guide plate 432 close to the set plane is provided with a first inclined surface 4321 inclined downward, and the side of the guide plate 432 away from the set plane is provided with a second inclined surface 4322 inclined upward; the first inclined surface 4321 of the guide plate 432 can guide the crushed stones below it to the discharge port 1122, and the second inclined surface 4322 of the guide plate 432 can guide the crushed stones above it to the discharge port 1122 (splashing crushed stones), so as to avoid accumulation on the second annular detection surface 412 (reference Figure 3 ); The screw feeding mechanism 433 includes a feeding barrel 4331, a discharging barrel 4332, a screw conveying shaft 4333 and a second servo motor 4334; wherein the feeding barrel 4331 is installed at an angle of 30°, the lower end of the feeding barrel 4331 extends to the bottom of the storage chamber 4311, and the upper end of the feeding barrel 4331 is connected to the feed port 1121 through the discharging barrel 4332 to form a closed circulation path. The screw conveying shaft 4333 is rotatably arranged in the feeding barrel 4331, the blade diameter of the screw conveying shaft 4333 is 150mm, the pitch is 120mm, the speed range is 10-200rpm, and the conveying capacity is 0.1-2.5 tons / hour; and the surface of the screw conveying shaft 4333 is coated with tungsten carbide to improve the wear resistance. The second servo motor 4334 drives the screw conveying shaft 4333 to rotate. Specifically, the second servo motor 4334 has a power of 5.5kW and supports start-stop, forward and reverse rotation and speed control.

[0044] In the specific working process, after being guided by the first inclined surface 4321 of the guide plate 432, the crushed stones enter the guide channel 4312 through the discharge port 1122 and slide into the storage chamber 4311 along the guide channel 4312 for temporary storage. The second servo motor 4334 starts to drive the screw conveying shaft 4333 to rotate, so that the crushed stones at the bottom of the storage chamber 4311 are captured by the blades of the screw conveying shaft 4333 and move upward along the feeding barrel 4331. When the crushed stones reach the top of the feeding barrel 4331, they are evenly scattered from the feed port 1121 to the inner side of the second annular detection surface 412 through the discharge barrel 4332.

[0045] It is worth mentioning that, during the above detection process, the rotation speed of the spiral conveying shaft 4333 can be changed to simulate a continuous gradual change scenario from sparse "gravel" to dense "pebbles" impact.

[0046] In this embodiment, it also includes a comprehensive control system, which integrates a mode switching module and a load adjustment module; The mode switching module is used to control the locking assembly 42 to switch between the fixed friction mode and the dynamic rolling mode. This can be achieved by the cooperation of the rotating ring 4141-shaped rotating frame and the pneumatic latch 423, and its principle will not be elaborated in detail here.

[0047] The load adjustment module is used to automatically adjust the vertical loading force of the hydraulic push rod 313 according to the tire specifications; this can be achieved with the help of a hydraulic system and a pressure sensor, and its principle will not be elaborated in detail here.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A detection device for automobile tire production, characterized in that: include: A cylindrical cavity is surrounded by a shell and the axis is arranged horizontally. A circular opening connected to the cylindrical cavity is opened at the center of the front side of the shell. The cylindrical cavity at the periphery of the circular opening extends radially outward to form an annular detection area. The lower half of the annular detection area is defined as a tire detection area. A blocking mechanism, comprising a blocking plate and a transverse driving assembly, wherein the transverse driving assembly is used to drive the blocking plate to move horizontally to close or open the circular opening; The tire loading mechanism comprises a vertical moving assembly slidably connected to the blocking plate, a tire fixing assembly rotatably mounted on the vertical moving assembly, and a rotation driving assembly drivingly connected to the tire fixing assembly to drive the tire fixing assembly to rotate around its own axis; A road condition simulation detection mechanism, which includes a ring-shaped rotating body, a locking assembly and a gravel circulation assembly; The annular rotating body is rotatably assembled in the annular detection area, and a first annular detection surface and a second annular detection surface with different radii are formed on the inner side thereof, wherein the first annular detection surface has detection plates with different roughness distributed along the circumference, and the second annular detection surface is arranged adjacent to the circular opening; the locking assembly is configured to limit or release the rotation of the annular rotating body; with the vertical plane passing through the central axis of the cylindrical cavity as the set plane, the gravel circulation assembly is configured to make the gravel continuously roll on the second annular detection surface from the left side to the right side of the set plane.

2. The automobile tire production detection device according to claim 1, characterized in that: The shell is composed of a cylindrical outer shell and a detachable annular side plate. One end of the cylindrical outer shell is open, and the annular side plate is installed at the open end. The inner side of the annular side plate forms the circular opening. A supporting member is provided at the bottom of the cylindrical outer shell.

3. The automobile tire production detection device according to claim 1, characterized in that: The blocking mechanism also includes a positioning bracket arranged at the shell near the circular opening, the blocking plate is horizontally slidably installed on the positioning bracket through a sliding pair, and the size of the blocking plate along the moving direction is greater than the axial length of the circular opening; the lateral drive assembly includes a pair of electric push rods, the electric push rods are symmetrically arranged on both sides of the positioning bracket, and the telescopic ends of the electric push rods are connected to the blocking plate; the positioning bracket is provided with a photoelectric sensor for real-time monitoring of the closing position of the blocking plate.

4. The automobile tire production detection device according to claim 3, characterized in that: The blocking plate is penetrated by a strip-shaped slide groove extending downward from the center of the circle. The vertical moving component includes a sliding seat slidably assembled in the strip-shaped slide groove, a sealing plate vertically fixed on the top of the sliding seat, and a hydraulic push rod. The hydraulic push rod is fixed on the outside of the blocking plate, and the telescopic end of the hydraulic push rod is connected to the sliding seat.

5. The automobile tire production detection device according to claim 4, characterized in that: The tire fixing assembly includes a rotating shaft that horizontally passes through the sliding seat and rotates with the sliding seat, and a limiting structure arranged on one end of the rotating shaft close to the shell; the limiting structure includes a fixed plate fixed to the rotating shaft and a movable plate threadedly connected to the rotating shaft, and an adjustment handle is provided on the movable plate; the rotation drive assembly is a first servo motor fixed to the sliding seat, and the output end of the first servo motor is connected to the rotating shaft through a coupling.

6. The automobile tire production detection device according to claim 1, characterized in that: The annular rotating body comprises an internal structure and an adjustment structure connected to each other; The internal structure comprises a rotating ring coaxially arranged in the annular detection area and a circular end plate connected to the rotating ring on the side away from the circular opening; an annular gap is arranged between the rotating ring and the cylindrical cavity, and rollers are evenly distributed in the annular gap; the first annular detection surface and the second annular detection surface are arranged on the inner side of the rotating ring; The adjustment structure comprises a connecting shaft coaxially fixed on the side of the circular end plate away from the circular opening, and one end of the connecting shaft away from the circular end plate passes through the back side wall of the shell and is connected to a supporting seat rotatably matched therewith.

7. The automobile tire production detection device according to claim 6, characterized in that: The locking assembly includes an annular rotating frame, a limiting cylinder and a pneumatic latch; the annular rotating frame is fixed to the end of the connecting shaft away from the circular end plate, and limiting holes are evenly arranged on the edge of the annular rotating frame; the limiting cylinder is fixed on the support seat, and the pneumatic latch is arranged in the limiting cylinder, and the pneumatic latch can be inserted into the limiting hole to lock the annular rotating body; the number of the detection plates is the same as the number of the limiting holes, and the detection plates and the limiting holes are arranged correspondingly.

8. The automobile tire production detection device according to claim 1, characterized in that: The annular side plates on the left and right sides of the tire testing area are respectively provided with a feed inlet and a discharge inlet; The gravel circulation assembly comprises a material guide shell, a material guide plate and a spiral feeding mechanism; The material guide shell is provided with a material storage cavity and a material guide channel, the input end of the material guide channel is connected to the material outlet, the output end of the material guide channel is connected to the material storage cavity, and the height of the material storage cavity is lower than the material outlet; The material guide plate is in sliding contact with the second annular detection surface, one end of the material guide plate passes through the material discharge port and is fixed to the upper side wall of the material guide channel, the other end of the material guide plate extends to contact the vertical surface where the second annular detection surface and the first annular detection surface meet, a first inclined surface inclined downward is provided on the side of the material guide plate close to the set plane, and a second inclined surface inclined upward is provided on the side of the material guide plate away from the set plane; The spiral feeding mechanism includes a feeding cylinder, a discharging cylinder, a spiral conveying shaft and a second servo motor; The feeding barrel is arranged obliquely, and the lower end of the feeding barrel extends to the bottom of the storage chamber, and the upper end of the feeding barrel is connected to the feeding port through the discharging barrel to form a closed circulation path; the screw conveying shaft is rotatably assembled in the feeding barrel, and the second servo motor is used to drive the screw conveying shaft to rotate.

9. The automobile tire production detection device according to any one of claims 1 to 8, characterized in that: It also includes a comprehensive control system, which integrates a mode switching module and a load regulation module; The mode switching module is used to control the locking assembly to switch between a fixed friction mode and a dynamic rolling mode; The load adjustment module is used to automatically adjust the vertical loading force of the hydraulic push rod according to the tire specifications.

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