Detection device

Abstract

The invention relates to the technical field of positioning locking detection of an upper rim and a lower rim, in particular to a detection device which comprises an upper rim mandrel, a main shaft, a first locking piece and a second locking piece. The upper rim mandrel is used for being connected with an upper rim, and a first groove is formed in the peripheral surface. The main shaft is used for being connected with a lower rim and internally provided with a movable part, and the movable part is provided with a second groove. A first locking piece; the second locking piece is arranged between the movable piece and the main shaft; and when the upper rim mandrel and the main shaft need to be locked, the second locking piece moves towards one end of the upper rim until the first locking piece is limited between the second groove and the first groove. According to the detection device, the second locking piece pushes the first locking piece to be limited between the second groove and the first groove, the upper rim mandrel and the movable piece or the main shaft stop moving, and it is judged that the upper rim mandrel and the main shaft are limited and locked, that is, the upper rim and the lower rim are locked; the problem that whether an upper rim and a lower rim are locked or not cannot be detected at present is solved.

Description

Technical Field

[0001] The invention relates to the technical field of positioning and locking detection, and in particular to a detection device. Background Art

[0002] At present, the known locking devices of the upper rim and the lower rim are pushed and tightened by a single oil cylinder or air cylinder, and the two are locked by mechanical limit. Due to unstable factors such as tire inflation pressure error, oil cylinder or air cylinder long-term use error, and mechanical limit wear, the upper rim and the lower rim are often misaligned, which ultimately leads to a large deviation between the tire measurement data and the actual data. The locking devices of the upper rim and the lower rim currently used do not have an automatic correction function. After the tire measurement data deviates, a wooden hammer needs to be used for correction. After correction, the upper rim and the lower rim will have a large accuracy error, resulting in a difference. The locking devices of the upper rim and the lower rim currently used do not have a device that automatically detects whether they are locked. If the rim is not locked during detection, it will cause tire leakage, slippage between the upper rim and the lower rim, and other problems, which have a great impact on the accuracy of the detection data.

[0003] Currently, the main problem is that the locking device cannot detect whether the upper rim and the lower rim are locked, resulting in tire leakage or rim slippage. Summary of the invention

[0004] The invention provides a detection device for solving the problem that the current locking detection device cannot detect whether the upper rim and the lower rim are locked, resulting in tire leakage or rim slippage.

[0005] In one aspect, the present invention provides a detection device, comprising: An upper wheel rim mandrel, used for connecting to the upper wheel rim, and having a first groove on its outer peripheral surface; A main shaft, used for connecting with the lower wheel rim, having a movable part inside, and the movable part having a second groove; a first locking member; A second locking member is disposed between the movable member and the main shaft; When the upper rim core shaft needs to be locked with the main shaft, the second locking member moves toward one end of the upper rim until the first locking member is limitedly engaged between the second groove and the first groove.

[0006] In some embodiments, a chamber and a first pipe opening are provided in the main shaft, and the first pipe opening is provided at an end of the movable member away from the upper rim and is connected to the chamber; The first pipeline is used to let in the first medium, so that the second locking member pushes the first locking member to move toward one end of the upper rim.

[0007] In some embodiments, a second pipe opening is further provided in the main shaft, the second pipe opening is provided at one end of the movable member facing the upper rim and is connected to the chamber; The second pipe opening is used to introduce the second medium so that the second locking member pushes the first locking member to move toward the end away from the upper rim until the first locking member is restored to the second groove.

[0008] In some embodiments, it also includes: A first sensor, used for detecting a first pressure value of the first pipe opening; The second sensor is used to detect the second pressure value of the second pipe opening; wherein, When the first pressure value meets the first pressure threshold, the upper rim and the lower rim are in a locked state; When the second pressure value meets the second pressure threshold, the upper rim and the lower rim are in a loosened state.

[0009] In some embodiments, the outer periphery of the upper rim spindle is provided with a first positioning surface; A hollow slot is provided inside the main shaft, and a second positioning surface is provided on the inner periphery of the hollow slot; When the upper rim core shaft is locked in the main shaft, the first positioning surface is in contact with the second positioning surface.

[0010] In some embodiments, the second locking member includes a locking portion, which is circumferentially slidably sleeved in the movable member, and the second groove is located on the inner circumference of the locking portion.

[0011] In some embodiments, a guide groove is provided between the main shaft and the movable member; The second locking member also includes a guide portion, which is connected to an end of the locking portion away from the upper wheel rim and is slidably fitted in the guide groove.

[0012] In some embodiments, a plurality of first grooves are provided, and the first grooves are arranged at intervals along the length direction of the upper rim core shaft, and the spacing between adjacent first grooves is 12 mm to 13 mm.

[0013] In some embodiments, the first groove has an opening facing one side of the first locking member; and the first groove is a U-shaped groove.

[0014] In some embodiments, a plurality of second grooves are provided, and the second grooves are tapered grooves, and the cross-sectional dimensions of the second grooves gradually increase along the radial direction of the second locking member pointing to the upper rim core shaft.

[0015] In some embodiments, it also includes: The manipulator includes a clamping claw, which is used to clamp or release the end of the upper rim spindle away from the lower rim; when the upper rim and the lower rim need to be locked, the clamping claw releases the upper rim spindle, and the upper rim spindle enters the main shaft; when the upper rim and the lower rim need to be loosened, the clamping claw clamps and grabs the upper rim spindle and moves it toward the end away from the lower rim until the first locking piece is relocated in the second groove.

[0016] The beneficial effects of the present invention are as follows: the detection device of the present invention comprises an upper rim core shaft, a main shaft, a first locking piece and a second locking piece; the upper rim core shaft is used to connect the upper rim, and its outer peripheral surface is provided with a first groove; the main shaft is used to connect the lower rim, and a movable piece is provided inside it, and the movable piece is provided with a second groove; the second locking piece is arranged between the movable piece and the main shaft; when the upper rim core shaft and the main shaft need to be locked, the second locking piece moves toward one end of the upper rim until the first locking piece is limitedly engaged between the second groove and the first groove. The first locking member is pushed to move by the second locking member until the first locking member is limited between the second groove and the first groove, and the upper rim core shaft and the movable member or the main shaft stop moving, thereby achieving limited locking between the movable member and the upper rim core shaft. Since the movable member is arranged in the main shaft, the locking between the main shaft and the upper rim core shaft is achieved. Since the upper rim core shaft is connected to the upper rim and the main shaft is connected to the lower rim, the locking between the upper rim and the lower rim can be detected and judged. Therefore, the detection device of the present invention can solve the problem that the current detection device cannot determine whether the upper rim and the lower rim are locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional schematic diagram of the detection device in the embodiment of the present invention when detecting the locking state of the upper rim and the lower rim; Figure 2 is a cross-sectional schematic diagram of the detection device in the embodiment of the present invention after the work is completed; Figure 3 Schematic diagram of the detection principle of the detection device in the embodiment of the present invention.

[0018] Numbers in the figure: 1, upper rim; 2, lower rim; 10, upper rim core shaft; 11, first groove; 12, first positioning surface; 20, main shaft; 21, chamber; 22, first pipe opening; 23, second pipe opening; 24, guide groove; 25, second positioning surface; 26, hollow tank body; 30, movable part; 31, second groove; 32, hollow cavity; 40, first locking member; 50, second locking member; 51, locking part; 52, guide part; 61, first sensor; 62, first sensor; 63, solenoid valve; 70, manipulator; 81, first sealing ring; 82, second sealing ring. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] As the background technology shows, the locking device of the upper rim and the lower rim cannot detect whether the upper rim and the lower rim are locked, which may cause tire leakage or rim slippage.

[0021] To solve the above problems, please refer to Figure 1 , Figure 2 and Figure 3 The present invention provides a detection device for detecting whether the upper rim 1 and the upper rim 2 are locked when clamping the tested tire. The detection device includes an upper rim spindle 10, a main shaft 20, a first locking member 40 and a second locking member 50. The upper rim spindle 10 is used to connect the upper rim 1, and the outer peripheral surface of the upper rim spindle 10 is provided with a first groove 11. The main shaft 20 is used to connect the lower rim 2, and a movable member 30 is provided inside the main shaft 20, and the movable member 30 is provided with a second groove 31. The first locking member 40 is arranged between the movable member 30 and the main shaft 20. When the upper rim spindle 10 and the main shaft 20 need to be locked, the second locking member 50 moves toward one end of the upper rim 1 until the first locking member 40 is limited between the second groove 31 and the first groove 11, that is, it is judged that the upper rim 1 and the lower rim 2 are locked. The detection device pushes the first locking member 40 to be limited between the second groove 31 and the first groove 11 through the second locking member 50, and the upper rim core shaft 10 and the movable member 30 or the main shaft 20 stop moving, and it is determined that the upper rim core shaft 10 and the main shaft 20 are limited and locked. The upper rim core shaft 10 is used to connect and fix the upper rim 1, and the main shaft 20 is used to connect and fix the lower rim 2, which is equivalent to locking the upper rim 1 and the lower rim 2, thereby solving the problem that it is currently impossible to detect whether the upper rim and the lower rim are locked.

[0022] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the upper rim spindle 10 is used to connect the upper rim 1 and is inserted into the upper rim 1. Specifically, one end of the upper rim spindle 10 is connected to the end face of the upper rim 1 away from the lower rim 2, and the connection method is that the two are fixedly connected by screws, and the other end of the upper rim spindle 10 passes through the upper rim 1 and extends toward the main shaft 20. The main shaft 20 is connected to the end face of the lower rim 2 away from the upper rim 1, and the connection method is that the two are fixedly connected by screws. The movable member 30 is arranged inside the main shaft 20, and the movable member 30 extends along the axial direction of the upper rim spindle 10 in the main shaft 20. The movable member 30 has a hollow cavity 32, and the inner circumferential surface of the movable member 30 is provided with a plurality of second grooves 31, which are arranged on the inner wall of the movable member 30 and connected to the hollow cavity 32. The second groove 31 is used to make the first locking member 40 slide inside, that is, the first locking member 40 can slide in the second groove 31. Furthermore, a plurality of first grooves 11 are provided on the outer peripheral surface of the upper rim spindle 10, and the first grooves 11 are used to allow the first locking member 40 to slide therein, that is, the first locking member 40 can be slidably fitted in the first grooves 11. The second locking member 50 is disposed between the movable member 30 and the spindle 20. Specifically, the second locking member 50 is slidably disposed between the movable member 30 and the spindle 20, and the second locking member 50 is movable along the axial direction of the upper rim spindle 10, and the first locking member 40 is located on the inner peripheral side of the second locking member 50. When the second locking member 50 moves, it can push the first locking member 40 to produce a centripetal movement, so that the first locking member 30 is adapted to the first groove 11 and / or the second groove 31.

[0023] In the detection device of the present invention, the movable member 30 is selected as a piston member; the first locking member 40 is selected as a high-strength, high-precision steel ball; and the second locking member 50 is selected as a slider.

[0024] In some embodiments, a chamber 21 and a first inlet 22 are provided in the main shaft 20. The first inlet 22 is provided at one end of the movable member 30 away from the upper rim 1 and is connected to the chamber 21. The first inlet 22 is used to introduce a first medium so that the second locking member 50 pushes the first locking member 40 to move toward one end of the upper rim 1 until the first locking member 40 is limitedly engaged between the first groove 11 and the second groove 31, thereby locking the upper rim spindle 10 and the main shaft 20, and further locking the upper rim 1 and the lower rim 2.

[0025] In some embodiments, the main shaft 20 is further provided with a second inlet 23, which is arranged at the end of the movable member 30 facing the upper rim 1 and is connected to the chamber 21. The second inlet 23 is used to introduce a second medium, so that the second locking member 50 moves toward the end away from the upper rim 1 and pushes the first locking member 40 to produce a centripetal movement until the first locking member 40 is disposed in the second groove 31, that is, the first locking member 40 is restored in the second groove 31, at which time the first locking member 40 is disengaged from the first groove 11, and the upper rim 1 and the lower rim 2 are in a loose state.

[0026] In some embodiments, Figure 2 As shown, the detection device of the present invention further includes a first sensor 61, which can be installed at the first pipe opening 22 to collect a first pressure value inside the first pipe opening 22. When the first pressure value collected by the first sensor 61 meets the first pressure threshold, it can be determined that the upper rim 1 and the lower rim 2 are in a locked state.

[0027] The detection device of the present invention further includes a second sensor 62, which can also be installed at the second pipe opening 23 to collect a second pressure value inside the second pipe opening 23. When the collected second pressure value meets the second pressure threshold, it can be determined that the upper rim 1 and the lower rim 2 are in a loose state.

[0028] It should be noted that the first sensor 61 and the second sensor 62 are connected to the host computer, and the host computer displays the first pressure value detected by the first sensor 61 and the second pressure value detected by the second sensor 62. When the first sensor 61 is selected as a positive pressure sensor, the first pressure threshold is set to a positive value, and when the first pressure value collected by the first sensor 61 is a positive value, the detection device detects that the upper rim 1 and the lower rim 2 are in a locked state. When the second sensor 62 is selected as a positive pressure sensor, the second pressure threshold is set to a positive value, and when the second pressure value collected by the second sensor 62 is a positive value, the detection device detects that the upper rim 1 and the lower rim 2 are in a loosened state.

[0029] As described above, the first pipe opening 22 and the second pipe opening 23 are respectively provided inside the main shaft 20. The first pipe opening 22 is located at the lower end of the movable part 30, i.e., the piston part, and the second pipe opening 23 is located at the upper end of the movable part 30, i.e., the piston part, so that a pneumatic method is adopted to control the movable part 30, i.e., the piston part to slide up and down along the upper rim core shaft 10, that is, the first pipe opening 22 and the second pipe opening 23 are provided inside the main shaft 20 as vents. By detecting the first pressure value of the first pipe opening 22 and the second pressure value of the second pipe opening 23, the locking state of the upper rim 1 and the lower rim 2 can be automatically determined, and can be directly displayed on the host computer, thereby reducing the work pressure of the operator.

[0030] In some embodiments, Figure 2As shown, the second locking member 50 includes a locking portion 51, which is arranged at one end of the second locking member 50 facing the upper rim 1, and the locking portion 51 is circumferentially slidably sleeved in the movable member 30, and the second groove 31 is arranged on the inner circumference of the locking portion 51. Specifically, around the axial direction of the upper rim core shaft 10, the locking portion 51 is sleeved in the movable member 30, and the locking portion 51 slides axially in the movable member 30, and the second groove 31 of the movable member 30 is located on the inner circumference of the locking portion 51. The locking portion 51 is used to push the first locking member 40 to move centripetally until the first locking member 40 is limitedly engaged between the second groove 31 and the first groove 11, and the upper rim 1 and the lower rim 2 are in a locked state.

[0031] In some embodiments, Figure 2 The second locking member 50 further includes a guide portion 52, which is connected to an end of the locking portion 51 away from the upper rim 1. In addition, a guide groove 24 is provided between the main shaft 20 and the movable member 30, and the guide portion 52 is slidably disposed in the guide groove 24.

[0032] In the above embodiment, the locking portion 51 is movably sleeved in the movable member 30 around the axial direction of the upper rim spindle 10, and the locking portion 51 is slidably fitted in the movable member 30 along the axial direction of the upper rim spindle 10. Since the second groove 31 is arranged on the inner peripheral side of the second locking member 50, when the locking portion 51 pushes the first locking member 40 to move toward one end of the upper rim 1, the inner peripheral surface of the locking portion 51 pushes the first locking member 40 to move centripetally until the first locking member 40 is simultaneously limitedly arranged in the first groove 11 and the second groove 31, so that the first locking member 40 is limitedly fitted between the first groove 11 and the second groove 31, and the rotational locking between the movable member 30 and the upper rim spindle 10 is realized, so that the main shaft 20 and the upper rim spindle 10 are limitedly fixed, and then the locking between the upper rim 1 and the lower rim 2 is realized.

[0033] In the above embodiment, the second locking member 50 is a slider, the locking portion 51 is fixedly connected to the guide portion 52, and the two can be fixedly connected by screws or integrally connected, and the slider is an L-shaped structural member.

[0034] In the above embodiment, a plurality of first grooves 11 are provided along the length direction of the upper rim spindle 10. The first grooves 11 are arranged at intervals along the length direction of the upper rim spindle 10, and the spacing between adjacent first grooves 11 is 12 mm to 13 mm. In some specific embodiments, the spacing between adjacent first grooves 11 is preferably 12.7 mm, which is used to accurately position the width of tires to be tested of different specifications. The first groove 11 is designed as a U-shaped groove to fit the outer surface of the first locking member 40, i.e., the steel ball. Along the radial direction of the upper rim spindle 10, the first groove 11 has an opening facing one side of the first locking member 40.

[0035] In the above embodiment, in the detection device provided by the present invention, a plurality of second grooves 31 are provided along the length direction of the main shaft 20 or the movable member 30, and the plurality of second grooves 31 are arranged at intervals. The second groove 31 is a tapered groove, and the cross-sectional size of the second groove 31 gradually increases along the radial direction of the second locking member 50 pointing to the upper rim spindle 10. Further preferably, the second groove 31 is an inner tapered groove with an inner tapered surface.

[0036] In the embodiment of the present invention, the movable part 30 is designed as a piston part. When the movable part 30, i.e., the piston part, moves with the upper rim spindle 10, the two rotate relative to each other until the first locking part 40, i.e., the steel ball, is limited between the second groove 31 of the movable part 30 and the first groove 11 of the upper rim spindle 10. Then, the main shaft 20 and the upper rim spindle 10 are limited and fixed, thereby realizing that the upper rim 1 and the lower rim 2 are in a locked state. Since the conical surface locking method is formed inside the second groove 31, it has high reliability. The locking conical surface is an integral structure with good uniformity, which is conducive to improving the locking centering accuracy, thereby improving the accuracy of tire test data. The overall structure of the detection device of the present invention is simple, the cost of the locking device is low, and the cylinder and its auxiliary parts and ventilation pipe parts in the original structure are omitted.

[0037] In the above embodiment of the present application, the first locking member 40, i.e., the steel ball, is pushed into the first groove 11 of the upper rim spindle 10 by the second locking member 50, i.e., the slider, to position and lock the upper rim 1. The upper rim 1 is designed with multiple first grooves 11, which ensures the positioning accuracy between the upper rim 1 and the lower rim 2 and avoids the misalignment of the upper rim 1 and the lower rim 2. In addition, the first locking member 40 locks the upper rim 1 so that the locking force is evenly distributed on the upper rim spindle 10, so that the clamped upper rim 1 is not easily deformed, has good locking force, is not easy to loosen, and can still remain tight during the rotation detection of the main shaft 20.

[0038] In some embodiments, the upper rim mandrel 10 has a first positioning surface 12 on the outer periphery of the end facing the lower rim 2, a hollow slot body 26 is provided inside the spindle 20, and the inner periphery of the hollow slot body 26 of the spindle 20 facing the upper rim 1 has a second positioning surface 25, and when the upper rim mandrel 10 is inserted into the hollow slot body 26 of the spindle 20 and the spindle 20 is locked, the first positioning surface 12 fits with the second positioning surface 25. In some embodiments, the first positioning surface 12 and the second positioning surface 25 are gap-matched. The present invention achieves precise positioning of the upper rim 1 by fitting the first positioning surface 12 and the second positioning surface 25 and gap-matching the two, thereby ensuring the coaxiality of the upper rim 1 and the lower rim 2, ensuring the accuracy of the rim geometric dimension detection, and improving the accuracy of the equipment itself during the detection activity.

[0039] In some embodiments, Figure 1As shown, a first sealing ring 81 is provided at one end of the second locking member 50 away from the upper rim 1; a second sealing ring 82 is provided on the outer peripheral surface of the second locking member 50 at one end facing the upper rim 1; the first sealing ring 81 and the second sealing ring 82 respectively isolate the two ends of the second locking member 50 from the outside world; when compressed air is introduced into one end of the second locking member 50, the second locking member 50 will move to the other end.

[0040] In addition, if Figure 3 As shown, the detection device of the present invention also includes a solenoid valve 63 and an air intake pipeline. The diameter of the air intake pipeline can be set to 12 mm. The air intake pipeline is arranged inside the main shaft 20 and connected to the chamber 21, and the air intake pipeline is respectively connected to the first pipe opening 22 and the second pipe opening 23. The solenoid valve 63 is connected to the first sensor 61 or the second sensor 62. When the first sensor 61 or the second sensor 62 detects an abnormality, the solenoid valve 63 can work and feedback information to the host computer. It should be noted that the upper rim spindle 10 has a guide shaft, which is arranged on the inner periphery of one end of the upper rim spindle 10 away from the lower rim 2. The upper rim 1 is connected to the upper rim spindle 10 by screws; the lower rim 2 is arranged outside the main shaft 20, and the main shaft 20 and the lower rim 2 are connected together by screws. The main shaft 20, the lower rim 2, the upper rim 1 and the tire to be tested work together to form a closed interval.

[0041] It should also be noted that the detection device of the present invention further includes a manipulator 70, which is movable along the axial direction of the upper rim core shaft 10. Figure 1 As shown, the manipulator 70 can be raised and lowered along the axial direction of the upper rim spindle 10. The manipulator 70 includes a clamping claw, which is used to clamp or release the end of the upper rim spindle 10 away from the lower rim 2. When the upper rim 1 and the lower rim 2 need to be locked, the upper rim spindle 10 is moved to the upper sidewall of the tire to be tested by the manipulator 70, the clamping claw of the manipulator 70 is released, the manipulator 70 rises axially, the upper rim spindle 10 enters the main shaft 20, the first positioning surface 12 is fitted with the second positioning surface 25, the first locking member 40 slides in the first groove 11, and the upper rim 1 and the lower rim 2 are locked. When the upper rim 1 and the lower rim 2 need to be released, the manipulator 70 descends axially, the clamping claw of the manipulator 70 clamps and grabs the upper rim spindle 10 and moves toward the end away from the lower rim 2, the first locking member 40 slides in the second groove 31, and the upper rim 1 and the lower rim 2 are released.

[0042] In an embodiment of the detection device of the present invention, when it is necessary to lock the upper rim 1 and the lower rim 2, the first medium is selected as compressed gas, and the compressed gas enters the air intake pipe and the chamber 21 from the first pipe opening 22 and pushes the second locking member 50 to move to one side of the upper rim 1, so that the first locking member 40 is limited between the first groove 11 and the second groove 31, and the upper rim core shaft 10 and the movable member 30 are limitedly connected, so that the upper rim 1 and the lower rim 2 are in a locked state. When the upper rim 1 and the lower rim 2 need to be loosened, the second medium is selected as compressed gas, which enters the air intake line and the chamber 21 from the second pipe opening 23 and pushes the second locking member 50 to move toward the end away from the upper rim 1, and at the same time, the manipulator 70 descends, and the claws of the manipulator 70 clamp and grab the upper rim spindle 10 to move toward the end away from the lower rim 2, so that the first locking member 40 slides into the second groove 31, that is, the first locking member 40 is reset in the second groove 31, so that the upper rim 1 and the lower rim 2 are loosened. Therefore, the upper rim 1 is clamped by the manipulator 70, and when working, the manipulator 70 descends to make the upper rim 1 enter the spindle 20, and the first positioning surface 12 and the second positioning surface 25 are matched, which can ensure the coaxiality of the upper rim 1 and the lower rim 2, and ensure the accuracy of the rim geometric size detection. The first locking member 40, i.e., the steel ball locks the upper rim 1 so that the locking force is evenly distributed on the upper rim mandrel 10, so that the clamped upper rim 1 is not easily deformed, has good locking force and is not easy to loosen, and can still be tightened during the rotation detection of the main shaft 20. At the same time, the multiple first grooves 11 of the upper rim 1 can ensure the positioning accuracy of the upper rim 1 and the lower rim 2, and avoid the misalignment of the upper rim 1 and the lower rim 2. By detecting the first pressure value of the first pipe port 22 and the second pressure value of the second pipe port 23, the locking state of the upper rim 1 and the lower rim 2 can be automatically determined, and can be directly displayed on the host computer, reducing the work pressure of the operator.

[0043] Based on the detection device provided by the present invention, the method for using the detection device includes: Step 1: According to the actual specifications of the tire to be tested, select a suitable upper rim 1 and install it on the upper rim spindle 10, and install the lower rim 2 on the spindle 20; Step 2: Place the tire to be tested on the lower rim 2; to facilitate tire removal, a suitable lubricant may be applied to the tire tip in advance; Step 3: Insert the upper rim mandrel 10 into the main shaft 20, and select an appropriate insertion depth according to the actual segment width of the tire to be tested; Step 4: The first medium, i.e., compressed gas, is introduced into the first pipe opening 22 at the lower end surface of the main shaft 20. The compressed gas enters the chamber 21 of the main shaft 20 through the first pipe opening 22, pushing the second locking member 50 upward, and the second groove 31, i.e., the inner conical surface of the movable member 30, i.e., the piston member, drives the first locking member 40, i.e., the steel ball, to move centripetally, locking the upper rim spindle 10; Step 5: Compressed gas is introduced into the closed space as described above, and the tip of the tire to be tested is clamped to the corresponding position of the rim; Step 6: Test the tire to be tested, and then release the gas in the closed area; Step 7: The second medium, i.e., compressed gas, is introduced into the second pipe opening 23 of the upper end surface of the movable member 30, i.e., the piston member. The compressed gas enters the chamber 21 of the main shaft 20 through the second pipe opening 23, pushing the second locking member 50 to descend; the manipulator 70 descends, and the claws of the manipulator 70 grip the upper rim spindle 10 and ascend to drive the first locking member 40 back to the chamber 21 of the main shaft 20, thereby releasing the main shaft 20; the second pressure value of the second pipe opening 23 is detected to be positive by the second sensor 62, i.e., the positive pressure sensor, and it is determined that the upper rim 1 and the lower rim 2 are in a released state, and the upper rim spindle 10 is unlocked; Step 8: Pull out the upper rim shaft 10 from the main shaft 20, and reset the first locking member 40, i.e., the steel ball.

[0044] Step 9: Remove the tire to be tested from the upper rim 1 and the lower rim 2, and the work is completed.

[0045] It should be added that when the detection device of the present invention starts working, the upper rim core shaft 10 is moved to the upper sidewall of the tire to be tested by the manipulator 70, the claws of the manipulator 70 are released, and the manipulator 70 rises; the first positioning surface 12 of the upper rim 1 and the second positioning surface 25 of the main shaft are fitted with each other to achieve the positioning of the upper rim 1, ensure the coaxiality of the upper rim 1 and the lower rim 2, and improve the accuracy of the equipment itself during the detection activity. The first medium, i.e., compressed air, enters the chamber 21 of the main shaft 20 through the first pipe opening 22, pushing the second locking member 50, i.e., the slider, to rise. The second locking member 50 pushes the first locking member 40 along the guide groove 24 into the first groove 11, i.e., the U-shaped groove, of the upper rim mandrel 10 to lock the upper rim 1. At the same time, the second locking member 50, i.e., the slider, pushes the first locking member 40, i.e., the steel ball, into the first groove 11 of the upper rim mandrel 10 to lock the upper rim 1. The multi-groove design of the upper rim 1 ensures the positioning accuracy between the upper rim 1 and the lower rim 2, avoiding the occurrence of rim misalignment. The first sensor 61 is a positive pressure sensor. When the first pressure value of the first pipe opening 22 is detected by the first sensor 61 as a positive value, it is judged that the upper rim 1 and the lower rim 2 are in a locked state.

[0046] Moreover, after the detection device of the present invention is finished working, the compressed air enters the chamber 21 of the main shaft 20 through the second pipe port 23, pushing the second locking member 50 down; the manipulator 70 descends, and the claws of the manipulator 70 clamp and grab the upper rim mandrel 10 to rise and drive the first locking member 40 back to the chamber 21 of the main shaft 20, so as to loosen the main shaft 20; when the second pressure value of the second pipe port 23 is detected as a positive value by the second sensor 62, i.e., the positive pressure sensor, it is judged that the upper rim 1 and the lower rim 2 are in a loose state. By detecting the first pressure value of the first pipe port as the air inlet and the second pressure value of the second pipe port 23 as the air inlet, the locking state between the upper rim 1 and the lower rim 2 can be automatically judged, and can be directly displayed on the host computer, reducing the work pressure of the operator.

[0047] The detection device of the present invention is provided with an upper rim core shaft 10, a main shaft 20, a first locking piece 40 and a second locking piece 50; the upper rim core shaft 10 is used to connect and fix the upper rim 1, and its outer peripheral surface is provided with a first groove 11; the main shaft 20 is used to connect and fix the lower rim 2, and a movable piece 30 is provided inside thereof, and the movable piece 30 is provided with a second groove 31; the second locking piece 50 is arranged between the movable piece 30 and the main shaft 20; when the upper rim core shaft 10 and the main shaft 20 need to be locked, the second locking piece 50 moves toward one end of the upper rim 1 until the first locking piece 40 is limitedly engaged between the second groove 31 and the first groove 11, and the upper rim core shaft 10 and the main shaft 20 stop rotating relative to each other, that is, the upper rim core shaft 10 and the main shaft 20 are locked with each other. The first locking member 40 is pushed to move by the second locking member 50 until the first locking member 40 is limited between the second groove 31 and the first groove 11, and the upper rim core shaft 10 and the movable member 30 or the main shaft 20 stop moving and stop rotating relative to each other, so that the limited locking between the movable member 30 and the upper rim core shaft 10 can be achieved. Since the movable member 30 is arranged in the main shaft 20, the locking between the main shaft 20 and the upper rim core shaft 10 is achieved. Since the upper rim core shaft 10 is fixedly connected to the upper rim 1, and the main shaft 20 is fixedly connected to the lower rim 2, the locking between the main shaft 20 and the upper rim core shaft 10 is equivalent to the locking between the upper rim 1 and the lower rim 2. Therefore, the detection device of the present invention can solve the problem that the current detection device cannot determine whether the upper rim 1 and the lower rim 2 are locked.

[0048] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In addition, the terms "above" and "below" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "above" and "below" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0052] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A detection device, characterized in that: include: An upper wheel rim mandrel, used for connecting to the upper wheel rim, and having a first groove on its outer peripheral surface; A main shaft, used for connecting with the lower wheel rim, having a movable part inside, and the movable part having a second groove; a first locking member; A second locking member, disposed between the movable member and the main shaft; When the upper rim core shaft needs to be locked with the main shaft, the second locking member moves toward one end of the upper rim until the first locking member is limitedly engaged between the second groove and the first groove.

2. The detection device according to claim 1, characterized in that: The spindle is provided with a chamber and a first pipe opening, wherein the first pipe opening is provided at one end of the movable part away from the upper rim and is connected to the chamber; The first pipe opening is used to allow a first medium to pass through, so that the second locking member pushes the first locking member to move toward one end of the upper rim.

3. The detection device according to claim 2, characterized in that: A second pipe opening is also provided in the main shaft, and the second pipe opening is provided at one end of the movable member facing the upper rim and is connected to the chamber; The second pipe opening is used to introduce a second medium so that the second locking member pushes the first locking member to move toward an end away from the upper rim until the first locking member is restored to the second groove.

4. The detection device according to claim 3, characterized in that: Also includes: a first sensor, used for detecting a first pressure value of the first pipe opening; The second sensor is used to detect the second pressure value of the second pipe opening; wherein, When the first pressure value meets a first pressure threshold, the upper rim and the lower rim are in a locked state; When the second pressure value meets a second pressure threshold, the upper rim and the lower rim are in a loosened state.

5. The detection device according to claim 1, characterized in that: The outer periphery of the upper rim spindle is provided with a first positioning surface; A hollow slot is provided inside the main shaft, and a second positioning surface is provided on the inner periphery of the hollow slot; When the upper rim spindle is locked in the main shaft, the first positioning surface is in contact with the second positioning surface.

6. The detection device according to claim 1, characterized in that: The second locking member includes a locking portion, the locking portion is circumferentially slidably sleeved in the movable member, and the second groove is located at the inner circumference of the locking portion.

7. The detection device according to claim 6, characterized in that: A guide groove is provided between the main shaft and the movable member; The second locking member further comprises a guide portion, which is connected to an end of the locking portion away from the upper rim and is slidably fitted in the guide groove.

8. The detection device according to claim 1, characterized in that: There are multiple first grooves, and the first grooves are arranged at intervals along the length direction of the upper rim core shaft, and the spacing between adjacent first grooves is 12mm~13mm.

9. The detection device according to claim 1, characterized in that: The first groove has an opening facing one side of the first locking member; the first groove is a U-shaped groove.

10. The detection device according to claim 1, characterized in that: There are multiple second grooves, and the second grooves are tapered grooves. The cross-sectional dimensions of the second grooves gradually increase along the radial direction of the second locking member pointing to the upper rim core shaft.

Images