CN110468759B - Rotary tire breaking device based on hollow tool bit and control device thereof - Google Patents
Rotary tire breaking device based on hollow tool bit and control device thereof Download PDFInfo
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- CN110468759B CN110468759B CN201910808141.9A CN201910808141A CN110468759B CN 110468759 B CN110468759 B CN 110468759B CN 201910808141 A CN201910808141 A CN 201910808141A CN 110468759 B CN110468759 B CN 110468759B
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- 230000009286 beneficial effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/12—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions for forcibly arresting or disabling vehicles, e.g. spiked mats
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Abstract
The invention discloses a rotary tire breaking device based on a hollow tool bit, which comprises: a bracket fixedly mounted on the rim; a plurality of impact mechanisms removably mounted to the frame; a plurality of rotating mechanisms, one of which is correspondingly arranged on the impact mechanism; a plurality of tool bits, one of which is correspondingly arranged on the rotating mechanism; the cutter head can move towards the tire direction while rotating to puncture the tire; and retreats back to the original position after puncturing the tire. The rotary tire-breaking device based on the hollow cutter head is fixedly arranged on a rim and synchronously rotates with a wheel, the tire is punctured at a fixed point in the high-speed running process of an automobile, and the cutter head is retracted after puncture; can realize the puncture of the tire fast and stably, and prevent the tire from interfering with the puncture mechanism when the tire is deflated and rolls. Meanwhile, the invention also discloses a control device of the rotary tire breaking device based on the hollow cutter head, which is used for controlling the rotary tire breaking device based on the hollow cutter head.
Description
Technical Field
The invention belongs to the technical field of automobile performance test devices, and particularly relates to a rotary tire breaking device based on a hollow tool bit and a control device thereof.
Background
As the requirements on the safety technical conditions of trucks and passenger cars are higher and higher, the steering performance, the braking performance and the automobile driving distance of certain vehicle types after tire burst need to be tested according to the JT/T1178.1-2018 standard. Taking a steering performance test as an example, a test vehicle is required to run at a constant speed of 60km/h along a straight line, a tire burst on one side of a steering shaft is simulated, the vehicle is kept running continuously in the straight line, a steering dynamometer is used for measuring the maximum tangential force value applied to the outer edge of a steering wheel in the process of maintaining the straight line running before and after the tire burst of the vehicle, and the increment of the maximum tangential force after the tire burst is calculated. The initial speeds of the linear brake and the curve brake in the brake performance test were 60km/h and 50km/h, respectively, and it was found that the test was performed at a relatively high vehicle speed. At present, manual operation is mostly adopted for tire breaking, the test result is not accurate due to the manual operation, and the test time is long. Therefore, a tire burster is needed to puncture a tire stably and rapidly in a short time so as to ensure the accuracy of test data.
Disclosure of Invention
One of the purposes of the invention is to provide a rotary tire-breaking device based on a hollow cutter head, which rotates synchronously with a wheel, punctures the tire at a fixed point in the high-speed running process of an automobile, and retracts the cutter head after puncturing; can realize the puncture of the tire fast and stably, and prevent the tire from interfering with the puncture mechanism when the tire is deflated and rolls.
The second purpose of the invention is to provide a control device of a rotary tire-breaking device based on a hollow cutter head, which can control an impact cylinder and a swing cylinder of the rotary tire-breaking device based on the hollow cutter head, so that the cutter head of the rotary tire-breaking device based on the hollow cutter head punctures a tire and retracts the cutter head after puncturing the tire.
The technical scheme provided by the invention is as follows:
a rotatory broken child device based on hollow tool bit includes:
a bracket fixedly mounted on the rim;
a plurality of impact mechanisms removably mounted to the frame;
a plurality of rotating mechanisms, one of which is correspondingly arranged on the impact mechanism;
a plurality of tool bits, one of which is correspondingly arranged on the rotating mechanism;
the tool bit can be driven by the rotating mechanism to rotate, and simultaneously driven by the impact mechanism to move towards the tire direction to puncture the tire; and is retracted to the initial position by the impact mechanism after puncturing the tire.
Preferably, the bracket includes:
a chassis coaxially and fixedly mounted on the outer side of the rim;
the fixed seat is fixedly connected to the chassis;
the multiple groups of mounting grooves are respectively formed in the fixed seat and are in one-to-one correspondence with the multiple impact mechanisms;
the mounting groove comprises a first mounting groove and a second mounting groove;
one side of the impact mechanism is detachably and simultaneously fixed in the first mounting groove and the second mounting groove, so that an included angle is formed between the impact mechanism and the wheel rim.
Preferably, the number of the impact mechanisms is two, and the included angles between the two impact mechanisms and the wheel rim are equal.
Preferably, the fixed seat is rectangular plate-shaped and is arranged perpendicular to the disc surface of the chassis; reinforcing ribs are respectively arranged on two sides of the fixed seat;
the two impact mechanisms are respectively arranged on two sides of the fixed seat, so that the two tool bits are distributed in a central symmetry mode around the center of the tire.
Preferably, one end of the first mounting groove, which is close to the fixed seat and is far away from the chassis, is provided and is parallel to the disk surface of the chassis;
the second mounting groove is formed between the first mounting groove and the chassis and is perpendicular to the first mounting groove.
Preferably, the impact mechanism adopts an impact cylinder; the rotating mechanism adopts a blade swing type cylinder.
A control device of a rotary tire breaking device based on a hollow cutter head, which is used for controlling the rotary tire breaking device based on the hollow cutter head, comprises:
the first electromagnetic valve is arranged on a gas supply pipeline of the impact cylinder;
the second electromagnetic valve is arranged on the air supply pipeline of the swing air cylinder;
a controller;
the tire breaker starting switch is connected with the input port of the controller;
the first electromagnetic valve relay is connected with a first output port of the controller and used for controlling the first electromagnetic valve;
the second electromagnetic valve relay is connected with a second output port of the controller and used for controlling the second electromagnetic valve; and
a power supply for supplying power to the control device.
Preferably, the controller includes: FX3U-16MR basic module and FX3U-4AD analog input module.
Preferably, the control device of the rotary tire-breaking device based on the hollow cutter head further comprises a torque sensor which is arranged between the impact cylinder and the swing cylinder.
Preferably, the torque sensor has a measuring range of 0-50 Nm and an output voltage range of 0-10V.
The invention has the beneficial effects that:
according to the rotary tire-breaking device based on the hollow cutter head, the support is connected through the tire bolt, so that the whole tire-breaking device can rotate along with a wheel; the tire is punctured at a fixed point, and the cutter head can be automatically retracted after the tire is punctured, so that the tire is prevented from interfering with a puncturing mechanism when rolling and deflating; the rotary tire-breaking device based on the hollow tool bit has the characteristics of high impact strength, high impact speed, high stability and the like, can be used for testing tires of different types, and can be widely used in performance tests of finished vehicles and automobile parts.
The control device of the rotary tire-breaking device based on the hollow cutter head can control the impact cylinder and the swing cylinder of the rotary tire-breaking device based on the hollow cutter head, so that the cutter head of the rotary tire-breaking device based on the hollow cutter head can puncture the tire, and the cutter head can be retracted after the tire is punctured.
Drawings
Fig. 1 is a schematic view of a hollow-bit-based rotary tire-breaking device of the present invention mounted on a rim.
Fig. 2 is a general structural schematic diagram of the rotary tire-breaking device based on the hollow cutter head.
Fig. 3 is a schematic structural diagram of the stent of the present invention.
Fig. 4 is a schematic structural diagram of the hollow cutter head according to the invention.
Fig. 5 is a circuit diagram of a control device of the rotary tire-breaking device based on the hollow cutter head.
Fig. 6 is a schematic wiring diagram of a PLC module according to an embodiment of the present invention.
Fig. 7 is a connection diagram of an internal circuit of the PLC according to the embodiment of the present invention.
Fig. 8 is a control flow chart of the rotary tire-breaking device based on the hollow cutter head in the embodiment of the invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
As shown in fig. 1, the present invention provides a rotary tire-breaking device based on a hollow cutter head, comprising: a support 110, a plurality of impact mechanisms 120, a plurality of rotation mechanisms 130, and a plurality of tool bits 140.
Wherein the bracket 110 is fixedly mounted on the rim 210; a plurality of impact mechanisms 120 are detachably mounted on the bracket 110; a plurality of rotating mechanisms 130 are correspondingly arranged on the impact mechanisms one by one; a plurality of tool bits 140 are mounted on the rotating mechanism in a one-to-one correspondence. The cutter head 140 can be driven by the impact mechanism 120 and the rotation mechanism 130 to rotate and move in the tire direction to puncture the tire; and retreats back to the original position after puncturing the tire.
As shown in fig. 2-3, the bracket 110 includes: chassis 111, fixing base 112 and a plurality of sets of mounting grooves. Wherein, the chassis 111 is disc-shaped, and the chassis 111 is coaxially and fixedly installed on the outer side of the rim 210 through screws; the fixed seat 112 is fixedly connected to the outer side of the chassis 111; the fixing base 112 is provided with a plurality of mounting grooves for mounting the impact mechanism 120. Wherein each set of mounting slots is disposed in one-to-one correspondence with each impact mechanism 120. Every group the mounting groove includes: a first mounting groove 113a, which is opened at an end of the fixing base 112 away from the chassis 111 and is parallel to the disk surface of the chassis 111; and a second mounting groove 113b opened between the first mounting groove 113a and the base plate 111 and perpendicular to the first mounting groove 113 a.
The inner side of the impact mechanism 120 is fixed to the first and second mounting grooves 113a and 113b by bolts 112a and 112b, respectively, at positions close to both ends of the impact mechanism 120, so that an included angle is formed between the impact mechanism 120 and the rim 210.
In the present embodiment, a double-side tire-breaking form is adopted, and the fixing seat 112 is rectangular plate-shaped and is arranged perpendicular to the disk surface of the chassis 111; reinforcing ribs 114 are symmetrically arranged on two sides of the fixed seat 112, the reinforcing ribs 114 are perpendicular to the fixed seat 112, and one end of each reinforcing rib 114 is fixedly connected to the chassis 111; the provision of the reinforcing ribs 114 increases the strength of the fixing base 112 and maintains balance. The two second mounting grooves 113b are symmetrically formed on the left and right sides of the fixing seat 112; two symmetrical first mounting grooves 113a are correspondingly required, and in the present embodiment, the two first mounting grooves 113a are perforated to form a through groove for convenience of processing. The two impact mechanisms 120 are respectively installed on two sides of the fixed seat 112, and the included angles between the two impact mechanisms 120 and the rim 210 are equal, so that the two cutter heads 140 are distributed in central symmetry about the center of the tire 220, and the included angles between the two cutter heads 140 and the tire are equal.
By providing the first and second mounting grooves 113a and 113b perpendicular to each other, the positions of the bolts 112a and 112b in the first and second mounting grooves 113a and 113b can be changed, thereby changing the inclination angle of the impact mechanism to adjust the position of the cutter head 140 to accommodate tire tests of different models (diameters).
Wherein, the impact mechanism 120 adopts an impact cylinder, and the rotating mechanism 130 adopts a swing cylinder; the swing cylinder is fixedly arranged at the end part of a piston rod of the impact cylinder, and the air source is high-pressure air from an automobile high-pressure air storage cylinder. The cutter head 140 is a hollow cutter head, and the structure of the cutter head 140 is shown in fig. 4, the cutter head 140 is in the shape of a hollow cylinder, one end of the hollow cylinder is closed, and the other end of the hollow cylinder is open; the closed end of the cutting head 140 is coaxially and fixedly connected to the rotary cylinder through a shank 140a, and the open end of the cutting head has a cutting edge 140 b. Because the swing cylinder needs to be installed at the tail end of the cylinder rod, the characteristics of small size, small mass and large torque need to be met. Therefore, the selection needs to be made among the common rotary cylinders: the most ideal mechanism is a linear swing combined type, but the tire at the broken position cannot be cut off more quickly due to the lower propelling speed; the gear-rack type cylinder is rectangular in shape, and interference is easily caused in the movement process of the puncturing mechanism; the air motor has large mass and large volume, which can not meet the requirement, and the threaded cylinder can also realize the function, but has small stroke and small thrust; therefore, as a further preferable feature, the vane oscillating cylinder is employed as the rotation mechanism in the present embodiment.
Meanwhile, the invention also provides a control device of the rotary tire-breaking device based on the hollow cutter head, which is used for controlling the rotary tire-breaking device based on the hollow cutter head, and as shown in fig. 5, the control device comprises: a first solenoid valve 310 provided on an air supply line of the impact cylinder, and a second solenoid valve 320 provided on an air supply line of the swing cylinder; the first electromagnetic valve 310 and the second electromagnetic valve 320 are two-position three-way electromagnetic valves; a controller 330; a breaker start switch 340 connected to an input port of the controller 330; the first solenoid valve 310 is connected to a first output port of the controller 330 through a first solenoid valve relay; the second solenoid valve 320 is connected with a second output port of the controller 330 through a second solenoid valve relay; and a power supply 350 for supplying power to the control means. The control device further includes a torque sensor (not shown) installed between the impact cylinder and the swing cylinder to measure a torque of the swing cylinder.
The control principle of the rotary tire breaking device based on the hollow tool bit is as follows: in an initial state, the first electromagnetic valve 310 and the second electromagnetic valve 320 are not electrified, one cavity of the impact cylinder is communicated with the high-pressure air cylinder, the impact cylinder contracts, and the swing cylinder is not electrified and does not rotate; when the tire needs to be punctured, the two electromagnetic valves are electrified, the other cavity of the impact cylinder is communicated with the high-pressure air storage cylinder, and the vane type swing cylinder is ventilated and rotated; the impact cylinder moves forward, and the swing cylinder simultaneously rotates until the tire is punctured. When the torque of the torque sensor between the swing cylinder and the impact cylinder is reduced to a certain degree after the tire is punctured, the electromagnetic valve is controlled to be powered off; at the moment, the impact cylinder is recovered, and the swing cylinder stops rotating.
Examples
The rotary tire-breaking device based on the hollow cutter head and the control device thereof are further explained by taking 9.0-2014 PR type tires as examples.
The 9.0-2014 PR model tire has 259mm section, 508mm diameter rim and 1018mm outer diameter. The tire section height is (maximum diameter-rim diameter)/2 is (1018-508)/2 is 255 mm.
In the form of a double-sided tire (as shown in fig. 1); and a high-speed impact cylinder (the highest moving speed can reach 60m/s) is selected as an impact mechanism; the cylinder diameter of the high-speed impact cylinder is 40 mm; a vane type swing cylinder is adopted as a rotating mechanism.
The cutter head adopts a cylindrical hollow cutter head (as shown in figure 4); the range of the torque sensor is 0-50 N.m, and the output voltage range is 0-10V. The first solenoid valve 310 is provided on the air supply line of the high-speed impact cylinder, and the second solenoid valve 320 is provided on the air supply line of the vane-type oscillation cylinder.
As shown in fig. 6, a PLC module is adopted as the controller, wherein the PLC module includes: FX3U-16MR basic module and FX3U-4AD analog input module. The first solenoid valve relay K1 is connected to the Y0 port of the PLC module for controlling the first solenoid valve 310, and the second solenoid valve relay K2 is connected to the Y1 port of the PLC module for controlling the second solenoid valve 320. The breaker start switch SB1 is connected to the X0 port of the PLC module, and the torque sensor (not shown) is connected to the analog input module.
The I/O allocation table is shown below in Table 1:
TABLE 1 PLC Module I/O Allocation Table
| Input and output quantities | Remarks for note |
| X0 | Starting switch |
| Y0 | Impact cylinder electromagnetic valve |
| Y1 | Oscillating cylinder solenoid valve |
The internal circuit connection of PLC is as shown in FIG. 7, wherein, K1, K2 are solenoid valve relays, 1SB is the tire breaker starting switch, 1ST is the delay switch, 2SB is the normally closed switch of torque sensor signal control, K3 is the outage relay of control long closed switch S3, the control principle is as follows: the switch 1SB is opened, the electromagnetic valve relays K1 and K2 are electrified, the switch S1 is closed at the same time, the tire breaker starting switch 1SB is short-circuited, and at the moment, the output relays K1 and K2 are kept powered; after the high-speed impact cylinder and the swing cylinder work, the switch 2SB is closed in a delayed mode. When the torque value of the torque sensor is lower than 5 N.m after the tire is punctured, the delay switch 1ST is closed, the relay K3 is electrified, and the normally closed switch S3 is opened; therefore, the output end of the PLC is powered off, the electromagnetic valve is powered off, and the air cylinder is automatically withdrawn.
As shown in fig. 8, the specific control flow of the rotary tire-breaking device based on the hollow cutter head is as follows: when the vehicle speed reaches the set vehicle speed of the test, a tester presses a tire breaker starting switch, the PLC is electrified, the impact cylinder and the swing cylinder start to work, and the tool bit is driven to move to puncture the tire; meanwhile, the PLC receives a torque measured value detected by the torque sensor, when the monitored torque measured value is lower than 5Nm, the tire puncture process is judged to be completed, the PLC is powered off, the first electromagnetic valve 310 and the second electromagnetic valve 320 are powered off, and the swing cylinder stops rotating and the impact cylinder retracts.
Through the test, the rotatory broken child device based on hollow tool bit that provides in this embodiment can be in 3s with tire gassing, and the breach is collapsible breach, satisfies the test requirement that impact velocity is fast, stability is high.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a rotatory broken child device based on hollow tool bit which characterized in that includes:
a bracket fixedly mounted on the rim;
a plurality of impact mechanisms removably mounted to the frame;
a plurality of rotating mechanisms, one of which is correspondingly arranged on the impact mechanism;
a plurality of tool bits, one of which is correspondingly arranged on the rotating mechanism;
the tool bit can be driven by the rotating mechanism to rotate, and simultaneously driven by the impact mechanism to move towards the tire direction to puncture the tire; and retreats to the initial position under the drive of the impact mechanism after puncturing the tire;
the bracket includes:
a chassis coaxially and fixedly mounted on the outer side of the rim;
the fixed seat is fixedly connected to the chassis;
the multiple groups of mounting grooves are respectively formed in the fixed seat and are in one-to-one correspondence with the multiple impact mechanisms;
the mounting groove comprises a first mounting groove and a second mounting groove;
one side of the impact mechanism is detachably and simultaneously fixed in the first mounting groove and the second mounting groove, so that an included angle is formed between the impact mechanism and the wheel rim.
2. The hollow-bit-based rotary tire puncturing device of claim 1, wherein there are two impact mechanisms and the angle between the two impact mechanisms and the rim is equal.
3. The rotary tire-breaking device based on the hollow cutter head as claimed in claim 2, wherein the fixed seat is rectangular plate-shaped and is arranged perpendicular to the disk surface of the chassis; reinforcing ribs are respectively arranged on two sides of the fixed seat;
the two impact mechanisms are respectively arranged on two sides of the fixed seat, so that the two tool bits are distributed in central symmetry about the center of the tire.
4. The rotary tire-breaking device based on the hollow cutter head as claimed in claim 2 or 3, wherein the first mounting groove is formed at one end of the fixing seat, which is far away from the chassis, and is parallel to the disk surface of the chassis;
the second mounting groove is formed between the first mounting groove and the chassis and is perpendicular to the first mounting groove.
5. The rotary hollow-bit-based tire puncturing device as claimed in claim 4, wherein the impact mechanism employs an impact cylinder; the rotating mechanism adopts a blade swing type cylinder.
6. A control device of a hollow-bit-based rotary tire-breaking device for controlling the hollow-bit-based rotary tire-breaking device according to claim 5, comprising:
the first electromagnetic valve is arranged on a gas supply pipeline of the impact cylinder;
the second electromagnetic valve is arranged on the air supply pipeline of the swing air cylinder;
a controller;
the tire breaker starting switch is connected with the input port of the controller;
the first electromagnetic valve relay is connected with a first output port of the controller and used for controlling the first electromagnetic valve;
the second electromagnetic valve relay is connected with a second output port of the controller and used for controlling the second electromagnetic valve; and
a power supply for supplying power to the control device.
7. The control device of the hollow-bit-based rotary tire puncturing device as claimed in claim 6, wherein the controller comprises: FX3U-16MR basic module and FX3U-4AD analog input module.
8. The control device of the hollow-bit-based rotary tire puncturing device as claimed in claim 7, further comprising a torque sensor installed between the impact cylinder and the swing cylinder.
9. The control device of the hollow-bit-based rotary tire-breaking device according to claim 8, wherein the torque sensor has a range of 0 to 50N-m and an output voltage range of 0 to 10V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910808141.9A CN110468759B (en) | 2019-08-29 | 2019-08-29 | Rotary tire breaking device based on hollow tool bit and control device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910808141.9A CN110468759B (en) | 2019-08-29 | 2019-08-29 | Rotary tire breaking device based on hollow tool bit and control device thereof |
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| CN110468759A CN110468759A (en) | 2019-11-19 |
| CN110468759B true CN110468759B (en) | 2021-05-04 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120041467A (en) * | 2010-10-21 | 2012-05-02 | 장철환 | Blowout testing machine of a tire |
| CN205898386U (en) * | 2016-07-12 | 2017-01-18 | 比亚迪股份有限公司 | Detection apparatus for it blows out and leaks gas to be used for simulating vehicle tyre |
| CN107527530A (en) * | 2017-09-07 | 2017-12-29 | 徐子建 | A kind of controlled in wireless simulates tire burst device |
| CN107941532A (en) * | 2017-11-10 | 2018-04-20 | 浙江大学 | A kind of wireless remote-control on-vehicle formula simulated automotive tire burst device and method of blowing out |
| CN108827650A (en) * | 2018-06-01 | 2018-11-16 | 武汉过控科技有限公司 | A kind of broken tire method |
-
2019
- 2019-08-29 CN CN201910808141.9A patent/CN110468759B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120041467A (en) * | 2010-10-21 | 2012-05-02 | 장철환 | Blowout testing machine of a tire |
| CN205898386U (en) * | 2016-07-12 | 2017-01-18 | 比亚迪股份有限公司 | Detection apparatus for it blows out and leaks gas to be used for simulating vehicle tyre |
| CN107527530A (en) * | 2017-09-07 | 2017-12-29 | 徐子建 | A kind of controlled in wireless simulates tire burst device |
| CN107941532A (en) * | 2017-11-10 | 2018-04-20 | 浙江大学 | A kind of wireless remote-control on-vehicle formula simulated automotive tire burst device and method of blowing out |
| CN108827650A (en) * | 2018-06-01 | 2018-11-16 | 武汉过控科技有限公司 | A kind of broken tire method |
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| CN110468759A (en) | 2019-11-19 |
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Granted publication date: 20210504 |