CN112414729A - Tire knocking-over resistance testing machine - Google Patents
Tire knocking-over resistance testing machine Download PDFInfo
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- CN112414729A CN112414729A CN202011426583.6A CN202011426583A CN112414729A CN 112414729 A CN112414729 A CN 112414729A CN 202011426583 A CN202011426583 A CN 202011426583A CN 112414729 A CN112414729 A CN 112414729A
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 230000007246 mechanism Effects 0.000 claims abstract description 200
- 230000033001 locomotion Effects 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims description 28
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 239000004484 Briquette Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
- G01M17/021—Tyre supporting devices, e.g. chucks
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application discloses a tire knocking-over resistance testing machine which comprises a machine table main body, a cross beam frame, a main lifting driving mechanism, a pressing block driving mechanism, a horizontal movement driving mechanism, a tire fixing mechanism, a knocking-over pressing block, a swing rod mechanism, a locking mechanism, a detection assembly and a control cabinet; the pressing block driving mechanism is used for controlling the lifting motion of the knocking-over pressing block so as to control the knocking-over pressing block to carry out knocking-over test on the tire to be tested. The horizontal movement driving mechanism drives the knockover pressing block to move in the horizontal direction by controlling the pressing block driving mechanism, and then the P value of the knockover pressing block is adjusted. In addition, the arranged air pressure detector can detect the air pressure condition of the tire to be tested in the test process in real time. This application testing machine design is led by the switch board, and the determine module feeds back to the motion of each mechanism of accurate control, whole automatic performance is good, and the testing result precision is high, promotion detection efficiency that can be better.
Description
Technical Field
The application relates to the technical field of tire tests, in particular to a tire knocking-over resistance testing machine.
Background
The tire is used as the only medium for connecting the vehicle with the ground, and the improvement of the vehicle performance is greatly dependent on the use performance of the tire. With the rapid development of the industry, people can not meet the existing vehicle performance requirements, so higher requirements are put on the service performance of tires.
High quality, high performance tires are a necessity for improving vehicle performance. The detection before the tire leaves the factory is the key of guaranteeing tire quality and vehicle performance, therefore the tire can carry out a series of performance detection before leaving the factory, especially receives the vehicle security performance aspect that masses pay close attention to, and the measurement of knocking over resistance is an indispensable test, and knocking over resistance detection can not go on in real time on-line measuring atmospheric pressure and the manual work of the most of operation in the past, and the automatic performance is not enough, leads to work efficiency low, and the testing result precision has the promotion of treating.
Disclosure of Invention
In view of this, the purpose of this application is to provide a tire knocking over resistance testing machine, and the automated performance is good, and the testing result precision is high, promotion detection efficiency that can be better.
In order to achieve the technical purpose, the application provides a tire knocking-over resistance testing machine which comprises a machine table main body, a cross beam frame, a main lifting driving mechanism, a pressing block driving mechanism, a horizontal movement driving mechanism, a tire fixing mechanism, a knocking-over pressing block, a swing rod mechanism, a locking mechanism, a detection assembly and a control cabinet;
a test working area is arranged on the machine table main body;
the tire fixing mechanism is arranged at the bottom of the test working area, is used for fixing the tire to be tested and can drive the tire to be tested to rotate;
the cross beam frame is slidably mounted in the test working area along the vertical direction and is positioned right above the tire fixing mechanism;
the swing rod mechanism is rotatably arranged at the bottom of the cross beam frame along the direction close to or far away from the tire fixing mechanism;
the knocking-over press block is slidably arranged on the swing rod mechanism;
the locking mechanism is arranged on the oscillating bar mechanism and used for locking the slip-regulated knocking-over pressing block;
the pressing block driving mechanism is installed on the cross beam frame, and the driving end of the pressing block driving mechanism is hinged with the knocking-over pressing block and used for driving the knocking-over pressing block to move along the vertical direction;
the horizontal movement driving mechanism is arranged on the cross beam frame, and the driving end of the horizontal movement driving mechanism is connected with the pressing block driving mechanism and used for driving the pressing block driving mechanism to horizontally move so as to adjust the P value of the knocking-over pressing block;
the main lifting driving mechanism is arranged on the machine table main body, and the driving end of the main lifting driving mechanism is connected with the cross beam frame and used for driving the cross beam frame to move up and down;
the detection component comprises a load sensor, a first displacement sensor, a second displacement sensor and an air pressure detector;
the load sensor is used for detecting the load applied to the knocking-over briquetting by the briquetting driving mechanism;
the first displacement sensor is used for detecting the vertical displacement of the knockover press block;
the second displacement sensor is used for detecting the horizontal displacement of the knockover press block;
the air pressure detector is used for detecting the air pressure of the tire to be tested;
the control cabinet is installed in the machine table main body and is respectively electrically connected with the main lifting driving mechanism, the pressing block driving mechanism, the horizontal movement driving mechanism, the tire fixing mechanism and the detection assembly.
Further, the machine table main body comprises a base, a left upright post, a right upright post and a top beam;
the left upright post and the right upright post are vertically arranged at the top of the base and are distributed at intervals;
the top beam is horizontally arranged between the tops of the left upright post and the right upright post;
the base, the left upright post, the right upright post and the top beam form the test working area in a surrounding manner.
Furthermore, a first guide rail is arranged on the inner side surface of the left upright post;
a second guide rail is arranged on the inner side surface of the right upright post;
the cross beam frame is slidably mounted between the first guide rail and the second guide rail;
the main lifting driving mechanism is installed in the left upright post or the right upright post, and the driving end is connected with the cross beam frame.
Further, the main lifting driving mechanism and the pressing block driving mechanism are both hydraulic cylinder driving mechanisms.
Further, the swing rod mechanism comprises a support arm and a swing rod frame;
the support arm is vertically arranged at one end of the bottom of the cross beam frame;
one end of the swing rod frame is hinged with the lower end of the support arm;
at least two guide rods which are parallel and arranged at intervals are arranged in the swing rod frame;
the top of the knocking-over pressing block is provided with a connector;
the connector is provided with guide holes for the guide rods to penetrate through in a one-to-one correspondence mode.
Further, the locking mechanism comprises a screw and two locking nuts;
the screw rod is parallel to the guide rods and is arranged between any two adjacent guide rods on the swing rod frame;
the connector is provided with an avoidance hole for the screw to movably pass through;
and the two locking nuts are fixedly sleeved on the screw rod and are respectively positioned on two sides of the connector.
Further, the device also comprises a tire mounting auxiliary mechanism;
the auxiliary tire mounting mechanism comprises a sub-lifting driving mechanism, a first connecting arm, a second connecting arm and a tire placing frame;
the sub-lifting driving mechanism is arranged on the machine table main body, is positioned outside the test working area and is used for driving the tire placing frame to move up and down;
one end of the first connecting arm is rotatably connected with the driving end of the sub-lifting driving mechanism along the horizontal direction, and the other end of the first connecting arm is rotatably connected with one end of the second connecting arm;
one end of the second connecting arm is rotatably connected with the tire containing frame;
the tire placing frame can rotate into the test working area and is provided with an avoiding groove for avoiding the fixing structure;
the control cabinet is electrically connected with the sub-lifting driving mechanism.
Further, the tire fixing mechanism comprises a rotary driving mechanism, a tire mounting mandrel, a speed reducer and a fixed seat;
the fixed seat is fixed at the bottom of the test working area;
the tire mounting mandrel is rotatably arranged at the top of the fixed seat;
the rotary driving mechanism is in transmission connection with the tire mounting mandrel through the speed reducer and is used for driving the tire mounting mandrel to rotate.
Furthermore, the tire fixing mechanism also comprises a speed measuring fluted disc and a proximity switch;
the speed measuring fluted disc is synchronously and rotatably arranged on the extending section of the rotating shaft of the speed reducer;
proximity switch install in the fluted disc side of testing the speed is used for detecting the number of teeth of rotation of the fluted disc that tests the speed.
Further, the horizontal movement driving mechanism is specifically a screw rod driving mechanism.
According to the technical scheme, the lifting control device is provided with the main lifting driving mechanism and can be used for controlling lifting of the cross beam frame so as to realize integral lifting control of the pressing block driving mechanism and the horizontal movement driving mechanism. The pressure block driving mechanism is used for controlling the lifting motion of the knocking-over pressure block so as to control the knocking-over pressure block to perform knocking-over test on the tire to be tested, and the main lifting driving mechanism can be controlled more accurately and safely by combining the first displacement sensor and the load sensor. The horizontal movement driving mechanism drives the knockover pressing block to move in the horizontal direction by controlling the pressing block driving mechanism, so that the P value of the knockover pressing block is adjusted, and the P value of the knockover pressing block can be adjusted more accurately by combining the second displacement sensor. In addition, the arranged air pressure detector can detect the air pressure condition of the tire to be tested in the test process in real time. This application testing machine design is led by the switch board, and the determine module feeds back to the motion of each mechanism of accurate control, whole automatic performance is good, and the testing result precision is high, promotion detection efficiency that can be better.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic overall structure diagram of a tire knocking-over resistance testing machine provided in the present application;
FIG. 2 is a schematic view of a partial structure of a tire runflat resistance testing machine provided in the present application;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a schematic structural view of a tire mounting auxiliary mechanism of the tire knocking-over resistance testing machine provided in the present application;
FIG. 5 is a schematic structural diagram of a tire securing mechanism of a tire runflat resistance testing machine provided in the present application;
in the figure: 1. a machine table main body; 11. a base; 12. a left upright post; 121. a first guide rail; 13. a right upright post; 131. a second guide rail; 14. a top beam; 2. a cross beam frame; 21. a fitting portion; 3. a main elevation drive mechanism; 4. a briquette drive mechanism; 5. a horizontal movement driving mechanism; 51. a speed reducer; 52. a screw motor; 53. a slider; 54. a screw rod; 55. a slide base; 6. knocking-off and pressing blocks; 61. a connector; 7. a swing rod mechanism; 71. a support arm; 72. a swing rod frame; 8. a control cabinet; 81. an operation panel; 9. a tire fixing mechanism; 91. assembling a tire mandrel; 911. a flange; 92. a fixed seat; 93. a locking lever; 94. a rotation driving mechanism; 95. a locking cylinder; 100. a tire mounting auxiliary mechanism; 101. a sub-lift drive mechanism; 102. a first connecting arm; 103. a second connecting arm; 104. a tire mounting frame; 200. and (4) a locking mechanism.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses tire knocking-over resistance testing machine.
Referring to fig. 1, an embodiment of a tire runflat resistance testing machine provided in an embodiment of the present application includes:
the machine comprises a machine table main body 1, a cross beam frame 2, a main lifting driving mechanism 3, a pressing block driving mechanism 4, a horizontal movement driving mechanism 5, a tire fixing mechanism 9, a knocking-over pressing block 6, a swing rod mechanism 7, a locking mechanism 200, a detection assembly and a control cabinet 8.
Be equipped with experimental workspace on the board main part 1, the appropriate design can be done according to actual need to the 1 concrete structure of board main part, satisfies and can stably bear each mechanism part, and make things convenient for each mechanism part installation can, do not do the restriction.
The tire fixing mechanism 9 is installed at the bottom of the test working area and used for fixing the tire to be tested and driving the tire to be tested to rotate, the purpose of driving the tire to be tested to rotate is that the multi-angle multi-time knocking-over test can be realized, and after the test of one position is finished, the tire fixing mechanism 9 can be controlled by the control cabinet 8 to drive the tire to be tested to rotate a certain angle to the next test position. It should be noted that the tire to be tested referred to in this application is a tire and rim assembly.
The cross beam frame 2 is slidably arranged in the test working area along the vertical direction and is positioned right above the tire fixing mechanism 9; the swing rod mechanism 7 is rotatably arranged at the bottom of the cross beam frame 2 along the direction close to or far away from the tyre fixing mechanism 9; the knocking-over press block 6 is slidably arranged on the swing rod mechanism 7; the locking mechanism 200 is arranged on the swing rod mechanism 7 and used for locking the slip-regulated knocking-over pressing block 6; the pressing block driving mechanism 4 is arranged on the cross beam frame 2, and the driving end of the pressing block driving mechanism is hinged with the knocking-over pressing block 6 and used for driving the knocking-over pressing block 6 to move along the vertical direction; the horizontal movement driving mechanism 5 is arranged on the cross beam frame 2, and the driving end of the horizontal movement driving mechanism is connected with the pressing block driving mechanism 4 and is used for driving the pressing block driving mechanism 4 to move horizontally so as to adjust the P value of the knocking-over pressing block 6; the main lifting driving mechanism 3 is installed on the machine table main body 1, and the driving end is connected with the cross beam frame 2 and used for driving the cross beam frame 2 to move up and down.
The detection component comprises a load sensor, a first displacement sensor, a second displacement sensor and an air pressure detector; the load sensor is used for detecting the load applied to the knocking-over briquette 6 by the briquette driving mechanism 4; the first displacement sensor is used for detecting the vertical displacement of the knockover press block 6; the second displacement sensor is used for detecting the horizontal displacement of the knockover press block 6; the air pressure detector is used for detecting the air pressure of the tire to be tested; the control cabinet 8 is installed on the machine table main body 1 and is electrically connected with the main lifting driving mechanism 3, the pressing block driving mechanism 4, the horizontal moving driving mechanism 5, the tire fixing mechanism 9 and the detection assembly respectively. The load sensor can be installed at a specific position according to actual conditions, for example, the load sensor is installed at a hinged position between the driving end of the pressing block driving mechanism 4 and the knocking-over pressing block 6 so as to detect the acting load between the pressing block driving mechanism 4 and the knocking-over pressing block 6, when the knocking-over pressing block 6 touches the rim of the tire to be tested, the acting load between the knocking-over pressing block 6 and the detection pressing block can be rapidly increased, and at the moment, the abnormal condition can be detected so as to stop the operation of the pressing block driving mechanism 4, so that the pressing block driving mechanism 4 is protected. The mounting positions of the first displacement sensor and the second displacement sensor are also determined according to the type of the displacement sensor, and are not particularly limited. The air pressure detector can continue to use a conventional air pressure detector and is connected with an air tap of the tire to be tested through an air pipe so as to detect the air pressure of the tire to be tested; the air pressure detector can be arranged at the position of the control cabinet 8, and of course, can also be arranged on the machine body without limitation.
In addition, the lifting device can further comprise a third displacement sensor for detecting the lifting displacement of the cross beam frame 2, and the specific type can be selected according to actual needs without limitation. Certainly, an origin switch and an upper limit travel switch and a lower limit travel switch can be respectively arranged in the test working area to control the origin reset motion of the cross beam frame 2 and avoid the excessive lifting and moving of the cross beam frame 2, thereby playing a role in protection.
According to the technical scheme, the main lifting driving mechanism 3 can be used for controlling the lifting of the cross beam frame 2, so that the integral lifting control over the pressing block driving mechanism 4 and the horizontal moving driving mechanism 5 is realized. The arranged pressing block driving mechanism 4 is used for controlling the lifting motion of the knocking-over pressing block 6 so as to control the knocking-over pressing block 6 to perform knocking-over test on the tire to be tested, and the main lifting driving mechanism 3 can be controlled more accurately and safely by combining the arranged first displacement sensor and the load sensor. The horizontal movement actuating mechanism 5 who sets up is through controlling briquetting actuating mechanism 4 in order to drive the horizontal direction removal of knockover briquetting 6, and then adjusts the P value of knockover briquetting 6, and wherein the P value of knockover briquetting 6 can more accurately be adjusted to the second displacement sensor that combines to set up, and the P value control range can be set for according to actual need, for example 209mm ~ 490 mm. In addition, the arranged air pressure detector can detect the air pressure condition of the tire to be tested in the test process in real time. This application testing machine design is led by switch board 8, and the determine module feeds back to the motion of each mechanism of accurate control, whole automated performance is good, and the testing result precision is high, promotion detection efficiency that can be better.
The above is a first embodiment of the tire knocking-over resistance testing machine provided in the embodiment of the present application, and the following is a second embodiment of the tire knocking-over resistance testing machine provided in the embodiment of the present application, and please refer to fig. 1 to 5 specifically.
The scheme based on the first embodiment is as follows:
further, as for the specific structural components of the machine main body 1, the machine main body 1 may include a base 11, a left upright 12, a right upright 13, and a top beam 14. Wherein, the left upright post 12 and the right upright post 13 are both vertically arranged on the top of the base 11 and are distributed at intervals. The top beam 14 is horizontally installed between the tops of the left upright 12 and the right upright 13. The structural combination can lead the base 11, the left upright post 12, the right upright post 13 and the top beam 14 to enclose a test working area. Of course, other structural components are also possible, and those skilled in the art can make appropriate changes based on the structural components, without limitation.
Further, taking the structure of the machine main body 1 as an example, the installation of the beam frame 2 may be as follows: a first guide rail 121 is arranged on the inner side surface of the left upright post 12, wherein the number of the first guide rail 121 can be two; the inner side surface of the right upright post 13 is provided with a second guide rail 131, and the second guide rail 131 can be one. The cross beam frame 2 is slidably installed between the first guide rail 121 and the second guide rail 131, the end of the cross beam frame 2 may be respectively provided with a matching portion 21 matching with the first guide rail 121 and the second guide rail 131, and the specific structure may be determined according to the structure of the guide rails, without limitation. In addition, the main lifting driving mechanism 3 can be arranged in the left upright post 12 or the right upright post 13, the driving end is connected with the cross beam frame 2, and the main lifting driving mechanism is arranged in a built-in mode, so that the overall appearance is simpler, the internal space can be fully utilized, and the overall structure is more compact.
Further, in order to have a sufficiently large driving force, both the main elevation driving mechanism 3 and the press block driving mechanism 4 may be specifically hydraulic cylinder driving mechanisms.
Further, the swing link mechanism 7 specifically includes a support arm 71 and a swing link frame 72, the support arm 71 is vertically installed at one end position of the bottom of the cross beam frame 2, and one end portion of the swing link frame 72 is hinged with the lower end portion of the support arm 71, so that the swing link frame 72 can swing in a direction approaching or departing from the fixing mechanism. In order to improve the stable installation of the knocking-over block 6, at least two parallel guide rods arranged at intervals are arranged in the swing rod frame 72, and the whole structure of the swing rod frame 72 can be directly composed of the guide rods and a connecting seat used for connecting the end parts of the guide rods, and is not limited specifically. Correspondingly, in order to be matched with the guide rods, the top of the knocking-over pressing block 6 can be provided with a connector 61, wherein the connector 61 is provided with guide holes for the guide rods to penetrate through one by one.
Further, the locking mechanism 200 may specifically include a screw and two locking nuts; the screw rods are parallel to the guide rods and are arranged between any two adjacent guide rods on the swing rod frame 72; the connector 61 is provided with an avoiding hole for the screw to movably pass through, so that the screw is ensured not to interfere with the movement of the knocking-over pressing block 6. The two locking nuts are fixedly sleeved on the screw rod and are respectively positioned at two sides of the connector 61. Initially, the two locking nuts are manually rotated, so that the two locking nuts are far away from each other, and a sufficient space is formed between the two locking nuts for the knocking-over pressing block 6 to move. When the horizontal movement driving mechanism 5 drives the knocking-over pressing block 6 to move in place, the two locking nuts can be manually rotated again, so that the two locking nuts are close to each other to clamp the knocking-over pressing block 6, and the knocking-over pressing block 6 is locked and fixed.
Further, in order to reduce the amount of work for manually carrying the tire to be tested, the tire mounting support mechanism 100 may be additionally provided. The tire mounting assisting mechanism 100 may specifically include a sub-lift driving mechanism 101, a first connecting arm 102, a second connecting arm 103, and a tire mounting frame 104. The sub-lifting driving mechanism 101 is installed in the machine main body 1, is located outside the test working area, and is used for driving the tire placing frame 104 to move up and down, and specifically can be installed in the left upright 12 or the right upright 13. One end of the first connecting arm 102 is rotatably connected with the driving end of the sub-lift driving mechanism 101 along the horizontal direction, and the other end is rotatably connected with the second connecting arm 103 along the horizontal direction; the other end of the second connecting arm 103 is rotatably connected with the tire placing frame 104; the tire placement frame 104 can be rotated into the test work area and is provided with an avoidance groove for avoiding the fixed structure. The tire placing frame 104 is connected with the sub-lifting driving mechanism 101 through two connecting arms, and the two connecting arms are in rotating connection and matching, so that the tire placing frame 104 can be shifted into a test working area through the rotating connecting arms, and the tire placing frame 104 can be aligned with the tire fixing mechanism 9 through rotating the tire placing frame 104. Of course, the control cabinet 8 is also electrically connected with the sub-lifting driving mechanism 101, so that the control is more convenient.
The specific tire mounting process may be, for example, as follows: 1, controlling a tire arranging frame 104 to be lowered to a preset height through a sub-lifting driving mechanism 101; 2, placing the tire to be tested on the tire placing frame 104, and enabling the central axis of the tire to be tested to be positioned in the middle of the avoidance groove; 3, controlling the tire arranging frame 104 to ascend to a preset height through the sub-lifting driving mechanism 101, wherein the preset height is higher than the tire fixing mechanism 9; in the lifting process, the tire arranging frame 104 can be synchronously pushed to enable the connecting arm to rotate, so that the tire arranging frame 104 is pushed into a test working area, and after the tire arranging frame 104 is lifted to the right position, the tire arranging frame 104 can be pushed again to adjust the alignment of the tire to be tested on the tire arranging frame 104; 4, after alignment, the tire placing frame 104 is controlled to descend by the sub-lifting driving mechanism 101, when the tire is descended by a certain height, the tire to be tested can be directly placed on the fixing mechanism, at this time, the tire placing frame 104 can be pushed out, and then the tire to be tested is fastened.
Further, the tire fixing mechanism 9 may specifically include a rotation driving mechanism 94, a tire mounting mandrel 91, a speed reducer, and a fixing seat 92. The fixing base is fixed in experimental work area bottom, and dress child dabber 91 rotates to be installed in the fixing base top, and its rotation connecting axle can stretch into base 11 downwards. The rotation driving mechanism 94 is connected with the rotation connecting shaft of the tire mounting mandrel 91 through a speed reducer and is used for driving the tire mounting mandrel 91 to rotate, the rotation driving mechanism can be a conventional rotating motor, and the rotation driving mechanism and the speed reducer can be installed in the base 11 together, so that the whole structure is more compact.
In order to better fix the tire to be tested and facilitate the disassembly and replacement. The tire fixing mechanism further comprises a locking cylinder 95 and a locking rod 93; the concrete structure can be for example as shown in fig. 5, dress child dabber 91 wholly can be the T type, also comprises two sections cylinders, and fixing base 92 top is located in the rotation of big diameter section cylinder, and the foretell rotation connecting axle of little diameter section cylinder formation, activity pass fixing base 92 and stretch into base 11, and rotary driving mechanism 94 installs in base 11 to drive little diameter section cylinder through speed reducer and gear shaft and rotate, and then drive dress child dabber 91 and wholly rotate. The locking rod 93 is composed of two rod bodies which are rotationally connected along the same axis and are fixedly connected in the axial direction; the locking rod 93 movably penetrates through the tire mounting mandrel 91 along the central axis of the tire mounting mandrel 91, the bottom end of the locking rod extends into the base 11, and the top end of the locking rod extends out of a flange 911 at the top of the tire mounting mandrel 91; the locking cylinder 95 is installed in the base 11 and connected to the bottom end of the locking rod 93 for driving the locking rod 93 to move up and down. The specific application examples are as follows: 1, mounting a tire to be tested on a flange 911 of a tire mounting mandrel 91; 2, fastening a locking bolt on the top end of the locking rod 93; and 3, starting the locking cylinder 95 to drive the locking rod 93 to move downwards so as to drive the locking bolt to tightly lock the tire to be tested.
Further, the rotation of the tire mounting spindle 91 is accurately controlled for convenience. The tire fixing mechanism 9 can also comprise a speed measuring fluted disc and a proximity switch; the speed measuring fluted disc is synchronously and rotatably arranged on the extending section of the rotating shaft of the speed reducer; the proximity switch is installed in the fluted disc side that tests the speed for detect the number of teeth of rotation that tests the speed the fluted disc, confirm the rotational position through rotatory number of teeth, also be the definite rotation angle, realize the accurate control of the rotation of dress child dabber 91. The application of the proximity switch and the speed measuring fluted disc can refer to the prior art, and details are not described in detail.
Further, in order to achieve better control of the adjustment accuracy, the horizontal movement driving mechanism 5 may be specifically a lead screw 54 driving mechanism. The device specifically comprises a screw 54 motor 52, a speed reducer 51, a sliding seat 55, a sliding block 53 and a screw 54; in order to ensure that the driving end of the briquetting driving mechanism 4 can extend downwards under the condition of ensuring the movement of the briquetting driving mechanism 4; the slide 55 can be a frame structure, which is open at the top and bottom, and has a sliding cavity inside, and is fixed on the beam frame 2, and similarly, the beam frame 2 can also be a frame structure, and has openings at the top and bottom. The screw rods 54 are rotatably installed in the sliding cavity, wherein the number of the screw rods 54 can be two, one screw rod 54 is matched with a plurality of guide shafts to improve the installation stability of the sliding block 53, so that an installation opening avoiding the driving end of the press block driving mechanism 4 can be arranged in the middle of the sliding block 53, and the driving end of the press block driving mechanism 4 installed on the sliding block 53 can penetrate through the guide shafts or the two screw rods 54 to extend downwards through the installation opening of the sliding block 53. The lead screw 54 motor 52 is a conventional servo motor, and is connected to the lead screw 54 through the speed reducer 51, and can be mounted on the cross frame 2 together with the speed reducer 51.
The control cabinet 8 in the present application may include a cabinet body, a control panel, an operation panel 81, a display screen, and the like; the operation panel 81 may include a power on switch, a power off switch, an emergency stop switch, a menu selection, a parameter selection, and the like; the display screen can be used for displaying corresponding test data, detection data and the like. Of course, the test device can also be externally connected with a computer to realize the functions of menu selection, parameter selection, test data display and the like. And an external printer can be used for printing the test result in time, and the method is not limited specifically. In this application, as shown in fig. 1, the cabinet body can be installed on the back of the right upright 13, and the operation panel 81 can be installed on the front of the right upright 13, so that the operation is convenient, and the operation is not limited.
The specific test process of the testing machine provided by the application can be as follows: 1, tire mounting is completed through the tire mounting auxiliary mechanism 100, and the tire mounting content can be seen in the specific tire mounting process, which is not described in detail; 2, starting the equipment and inputting corresponding parameters of the tire to be tested; 3, the main lifting driving mechanism 3 drives the cross beam frame 2 to integrally descend to a preset height position, and the horizontal movement driving mechanism 5 controls the press block driving mechanism 4 to horizontally move so as to drive the knockover press block 6 to move to a position corresponding to a P value calculated according to the input corresponding parameters; 4, after the knockover press block 6 moves in place, the operator locks the knockover press block 6 through the locking mechanism 200; 5, starting to carry out a knocking-over test, wherein the pressing block driving mechanism 4 descends according to the instruction of the control system, and the knocking-over pressing block 6 moves downwards along with the rotation center of the swing rod at the moment; in the process, the system depends on the stroke measured by the first displacement sensor, the control system can automatically calculate the angle of the oscillating bar, and the vertical acting force of the oscillating bar is automatically converted according to the axial acting force of the tire. 6, after the knocking-over test of the knocking-over first test point is finished, the system controls the tire fixing mechanism 9 to rotate so as to drive the tire to be tested to rotate to the next point to be tested, and then the step 5 is repeated for testing.
While the tire knocking-over resistance testing machine provided by the present application has been described in detail, those skilled in the art will appreciate that the present invention is not limited thereto, and that the present invention is not limited to the above-described embodiments and applications.
Claims (10)
1. A tire knocking-over resistance testing machine is characterized by comprising a machine table main body, a cross beam frame, a main lifting driving mechanism, a pressing block driving mechanism, a horizontal movement driving mechanism, a tire fixing mechanism, a knocking-over pressing block, a swing rod mechanism, a locking mechanism, a detection assembly and a control cabinet;
a test working area is arranged on the machine table main body;
the tire fixing mechanism is arranged at the bottom of the test working area, is used for fixing the tire to be tested and can drive the tire to be tested to rotate;
the cross beam frame is slidably mounted in the test working area along the vertical direction and is positioned right above the tire fixing mechanism;
the swing rod mechanism is rotatably arranged at the bottom of the cross beam frame along the direction close to or far away from the tire fixing mechanism;
the knocking-over press block is slidably arranged on the swing rod mechanism;
the locking mechanism is arranged on the oscillating bar mechanism and used for locking the slip-regulated knocking-over pressing block;
the pressing block driving mechanism is installed on the cross beam frame, and the driving end of the pressing block driving mechanism is hinged with the knocking-over pressing block and used for driving the knocking-over pressing block to move along the vertical direction;
the horizontal movement driving mechanism is arranged on the cross beam frame, and the driving end of the horizontal movement driving mechanism is connected with the pressing block driving mechanism and used for driving the pressing block driving mechanism to horizontally move so as to adjust the P value of the knocking-over pressing block;
the main lifting driving mechanism is arranged on the machine table main body, and the driving end of the main lifting driving mechanism is connected with the cross beam frame and used for driving the cross beam frame to move up and down;
the detection component comprises a load sensor, a first displacement sensor, a second displacement sensor and an air pressure detector;
the load sensor is used for detecting the load applied to the knocking-over briquetting by the briquetting driving mechanism;
the first displacement sensor is used for detecting the vertical displacement of the knockover press block;
the second displacement sensor is used for detecting the horizontal displacement of the knockover press block;
the air pressure detector is used for detecting the air pressure of the tire to be tested;
the control cabinet is installed in the machine table main body and is respectively electrically connected with the main lifting driving mechanism, the pressing block driving mechanism, the horizontal movement driving mechanism, the tire fixing mechanism and the detection assembly.
2. The tire knocking-over resistance testing machine according to claim 1, wherein the machine table main body comprises a base, a left upright, a right upright and a top beam;
the left upright post and the right upright post are vertically arranged at the top of the base and are distributed at intervals;
the top beam is horizontally arranged between the tops of the left upright post and the right upright post;
the base, the left upright post, the right upright post and the top beam form the test working area in a surrounding manner.
3. The tire knocking-over resistance testing machine according to claim 2, wherein a first guide rail is arranged on the inner side surface of the left upright post;
a second guide rail is arranged on the inner side surface of the right upright post;
the cross beam frame is slidably mounted between the first guide rail and the second guide rail;
the main lifting driving mechanism is installed in the left upright post or the right upright post, and the driving end is connected with the cross beam frame.
4. The tire knockover resistance testing machine according to claim 1, wherein the main lifting drive mechanism and the press block drive mechanism are both hydraulic cylinder drive mechanisms.
5. The tire knocking-over resistance testing machine according to claim 1, wherein the swing link mechanism comprises a support arm and a swing link frame;
the support arm is vertically arranged at one end of the bottom of the cross beam frame;
one end of the swing rod frame is hinged with the lower end of the support arm;
at least two guide rods which are parallel and arranged at intervals are arranged in the swing rod frame;
the top of the knocking-over pressing block is provided with a connector;
the connector is provided with guide holes for the guide rods to penetrate through in a one-to-one correspondence mode.
6. The tire knockover resistance testing machine according to claim 5, wherein the locking mechanism includes a screw and two lock nuts;
the screw rod is parallel to the guide rods and is arranged between any two adjacent guide rods on the swing rod frame;
the connector is provided with an avoidance hole for the screw to movably pass through;
and the two locking nuts are fixedly sleeved on the screw rod and are respectively positioned on two sides of the connector.
7. The tire runover resistance testing machine according to claim 1, further comprising a tire mounting assist mechanism;
the auxiliary tire mounting mechanism comprises a sub-lifting driving mechanism, a first connecting arm, a second connecting arm and a tire placing frame;
the sub-lifting driving mechanism is arranged on the machine table main body, is positioned outside the test working area and is used for driving the tire placing frame to move up and down;
one end of the first connecting arm is rotatably connected with the driving end of the sub-lifting driving mechanism along the horizontal direction, and the other end of the first connecting arm is rotatably connected with one end of the second connecting arm;
one end of the second connecting arm is rotatably connected with the tire containing frame;
the tire placing frame can rotate into the test working area and is provided with an avoiding groove for avoiding the fixing structure;
the control cabinet is electrically connected with the sub-lifting driving mechanism.
8. The tire knocking-over resistance testing machine according to claim 1, wherein the tire fixing mechanism comprises a rotary driving mechanism, a tire installing mandrel, a speed reducer and a fixed seat;
the fixed seat is fixed at the bottom of the test working area;
the tire mounting mandrel is rotatably arranged at the top of the fixed seat;
the rotary driving mechanism is in transmission connection with the tire mounting mandrel through the speed reducer and is used for driving the tire mounting mandrel to rotate.
9. The tire knocking-over resistance testing machine according to claim 8, wherein the tire fixing mechanism further comprises a speed measuring fluted disc and a proximity switch;
the speed measuring fluted disc is synchronously and rotatably arranged on the extending section of the rotating shaft of the speed reducer;
proximity switch install in the fluted disc side of testing the speed is used for detecting the number of teeth of rotation of the fluted disc that tests the speed.
10. The tire knockover resistance testing machine according to claim 1, wherein the horizontal movement driving mechanism is a screw driving mechanism.
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| CN202011426583.6A CN112414729B (en) | 2020-12-08 | 2020-12-08 | Tyre ring-off resistance testing machine |
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| CN202011426583.6A CN112414729B (en) | 2020-12-08 | 2020-12-08 | Tyre ring-off resistance testing machine |
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