Roller coaster wheel performance synchronous test system and test method thereof

Abstract

The invention discloses a roller coaster wheel performance synchronous test system and a test method thereof, and relates to the technical field of wheel performance test.The roller coaster wheel performance synchronous test system comprises a supporting bearing platform, and the upper end of the supporting bearing platform is hinged to the lower end of a first rocker arm, the lower end of a second rocker arm and the fixed end of a telescopic driving device; the first rocker arm and the second rocker arm can be rotatably connected with to-be-tested wheels, a driving motor is fixed to the supporting platform, an output shaft of the driving motor is connected with a driving wheel, the two sides of the driving wheel abut against the two to-be-tested wheels respectively, and the telescopic end of the telescopic driving device is hinged to a hinge connecting plate. A swing arm is hinged to the hinged connecting plate, the end, away from the hinged connecting plate, of the swing arm is connected with a connecting piece, and the end, away from the swing arm, of the connecting piece is hinged to the upper end of the first rocker arm. The two to-be-tested wheels can be tested at the same time, so that the testing efficiency is improved, and the manufacturing cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of wheel performance testing, and in particular to a roller coaster wheel performance synchronous testing system and a testing method thereof. Background Art

[0002] The wheels of roller coasters are used to support the body and act on the steel track to ensure that the roller coaster slides along the predetermined route. The process is thrilling and is deeply loved by tourists. The wheels of existing roller coasters are mostly made of polyurethane or rubber. As a non-metallic wheel, polyurethane wheels are usually composed of different proportions of TDI (toluene diisocyanate), polyether polyols, and MOCA (2-chloroaniline), including the inner metallic silver hub and the outer yellow part of the rubber coating. In actual work, the inner hub generally does not have problems, but the outer rubber coating is prone to damage, cracking and holes. For wheels with problems in the rubber coating, the manufacturer needs to re-coat them, but the raw materials and the above composition ratios of different manufacturers will be different, resulting in uneven wheel quality. Some can be used for 3 months, while others may be degummed in half a month. This is because the current manufacturers have no testing methods and means for the wheels that have been manufactured and coated with rubber, and the operating unit cannot propose specific quantifiable parameters when purchasing wheels.

[0003] Furthermore, due to the lack of product wear resistance and load-bearing performance testing systems and methods during the manufacturing process of roller coaster wheels, problems such as degumming and bubbling that affect safety will occur during use. Roller coaster operating units generally rely on experience to take a conservative approach to replace wheels in advance. On the one hand, this situation leads to the lack of experimental verification of the wear resistance and load-bearing properties of the wheels produced by wheel manufacturers. Relying on empiricism, it is impossible to rule out defective products, which poses a safety hazard after they are put into use. On the other hand, the operating unit's early replacement of wheels undoubtedly increases unnecessary operating costs and causes huge economic waste.

[0004] In order to realize the performance test of existing wheels, the patent number CN108709756A discloses an "engineering tire comprehensive performance tester", which drives the tested wheel to rotate through a rotating drum and applies pressure through a first drive device to test the tire's durability test, static load performance test and strength puncture performance test.

[0005] However, the above existing wheel testing system can only complete the performance test of a single wheel, and cannot complete the synchronous test of two wheels, and the testing efficiency is low. In addition, the structure is complicated, which makes the manufacturing cost high.

[0006] Therefore, there is an urgent need in the art for a roller coaster wheel performance synchronization testing system and a testing method thereof to solve the above-mentioned problems. Summary of the invention

[0007] The purpose of the present invention is to provide a roller coaster wheel performance synchronous testing system and testing method thereof, so as to solve the problems existing in the above-mentioned prior art, and enable two wheels to be tested to be tested simultaneously, thereby improving the testing efficiency, and the overall structure of the device is relatively simple and the manufacturing cost is low.

[0008] To achieve the above object, the present invention provides the following solutions:

[0009] The present invention discloses a synchronous testing system for the performance of roller coaster wheels, comprising a supporting platform, the upper end of the supporting platform is hinged with the lower end of a first rocker arm, the lower end of a second rocker arm and the fixed end of a telescopic driving device, the first rocker arm and the second rocker arm can be rotatably connected to a wheel to be tested, a driving motor is fixed to the supporting platform, a driving wheel is connected to the output shaft of the driving motor, two sides of the driving wheel are respectively abutted against two wheels to be tested, the telescopic end of the telescopic driving device is hinged with an articulated connecting plate, one end of the articulated connecting plate away from the telescopic driving device is hinged to the upper end of the second rocker arm, a swing arm is also hinged on the articulated connecting plate, one end of the swing arm away from the articulated connecting plate is connected to a connecting piece, and one end of the connecting piece away from the swing arm is hinged to the upper end of the first rocker arm.

[0010] Preferably, the support platform is mounted on the support base by screws.

[0011] Preferably, the driving motor is a variable frequency motor.

[0012] Preferably, the telescopic driving device is a cylinder, and the cylinder is connected to an air compressor via an air intake pipe.

[0013] Preferably, the connecting member is a screw, an adjustment plate is provided on one end of the swing arm close to the screw, an adjustment hole is provided on the adjustment plate, one end of the screw close to the swing arm passes through the adjustment hole, at least two adjustment nuts are threadedly connected to the screw, and at least one adjustment nut is provided on each side of the adjustment plate.

[0014] Preferably, three adjusting nuts are provided, one adjusting nut is provided on a side of the adjusting plate close to the first rocker arm, and two adjusting nuts are provided on a side of the adjusting plate away from the first rocker arm.

[0015] Preferably, three hinged supports are provided at the upper end of the supporting platform, and the lower end of the first rocker arm, the lower end of the second rocker arm and the fixed end of the telescopic driving device are respectively hinged to the three hinged supports.

[0016] Preferably, the hinged connecting plate is a triangular plate.

[0017] The present invention discloses a test method for a roller coaster wheel performance synchronization test system, based on the above roller coaster wheel performance synchronization test system, comprising the following steps:

[0018] S1. Assemble the roller coaster wheel performance synchronization test system, determine the test parameters, and then install two wheels to be tested;

[0019] S2. Start the air compressor and set the cylinder pressure;

[0020] S3, start the drive motor and set the drive motor speed;

[0021] S4, the driving wheel drives the wheel to be tested to rotate according to the set parameters;

[0022] S5. Complete the test according to the set time and remove the tested wheel;

[0023] S6. Carry out performance testing according to the test standards.

[0024] Preferably, the performance test in step S6 includes a wear resistance test, a load-bearing capacity test and a lagging quality test;

[0025] Wear resistance test: The two wheels to be tested rotate synchronously for a set time, and the outer diameters of the two wheels to be tested are compared, the diameter D1 before rotation and the diameter D2 after rotation. (D1-D2) / D1 is the degree of wear;

[0026] Load-bearing capacity test: Apply different air pressures according to the load-bearing capacity requirements, run at the specified speed, and observe the integrity of the wheel to be tested;

[0027] Rubber coating quality test: After running for a certain period of time at the set speed and pressure, observe whether the surface of the wheel coating to be tested is intact, and whether there are cracks, sinking and bubbles. The temperature measurement function of the infrared thermal imager can also be used to test the heating speed and the maximum allowable operating temperature of different wheels to be tested.

[0028] Compared with the prior art, the present invention has achieved the following technical effects:

[0029] The present invention is provided with a first rocker arm and a second rocker arm, and the first rocker arm and the second rocker arm are both provided with wheels to be tested, so that the two wheels to be tested can be tested simultaneously, thereby improving the testing efficiency of the wheels to be tested;

[0030] Furthermore, the present invention can be used to adjust the pressure on the wheel to be tested by adjusting the extension and contraction of the telescopic drive device, and the rotation speed of the drive wheel can be controlled by the drive motor;

[0031] Furthermore, the present invention can adjust the distance between the first rocker arm and the second rocker arm and the driving wheel by turning the adjusting nut, thereby realizing the testing of wheels to be tested of different sizes;

[0032] Furthermore, the present invention can also realize tests including wear resistance test, load-bearing capacity test and lagging quality test. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is a schematic diagram of the structure of a roller coaster wheel performance synchronization test system according to Embodiment 1;

[0035] Figure 2 This is a flow chart of a testing method of a roller coaster wheel performance synchronization testing system according to Embodiment 2;

[0036] In the figure: 1-supporting platform; 2-supporting base; 3-first rocker arm; 4-second rocker arm; 5-telescopic driving device; 6-hinged connecting plate; 7-swing arm; 8-screw rod; 9-adjusting nut; 10-driving motor; 11-driving wheel; 12-wheel to be tested. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0038] The purpose of the present invention is to provide a roller coaster wheel performance synchronous testing system and testing method thereof, so as to solve the problems existing in the above-mentioned prior art, and enable two wheels to be tested to be tested simultaneously, thereby improving the testing efficiency, and the overall structure of the device is relatively simple and the manufacturing cost is low.

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Embodiment 1

[0041] like Figure 1As shown, this embodiment provides a roller coaster wheel performance synchronization test system 100, including a support platform 1, the support platform 1 is a steel frame structure, and the upper end of the support platform 1 is hinged with the lower end of the first rocker arm 3, the lower end of the second rocker arm 4 and the fixed end of the telescopic drive device 5 in sequence from left to right. Among them, the middle position of the first rocker arm 3 and the second rocker arm 4 can be rotatably connected to the wheel 12 to be tested, and the first rocker arm 3 and the second rocker arm 4 have the same structure, both of which are composed of two rocker arm vertical plates arranged parallel to each other, and a plurality of rocker arm horizontal plates are arranged between the two rocker arm vertical plates. The rocker arm vertical plates and the rocker arm horizontal plates can be an integrated structure or fixed by welding, and the wheel 12 to be tested is rotatably connected to the wheel installation cavity formed between the rocker arm vertical plates and the rocker arm horizontal plates. The rotation connection of the wheel 12 to be tested can be achieved by sequentially passing through the two rocker arm vertical plates and the center of the wheel 12 to be tested located between the two by a wheel center axis. A driving motor 10 is fixed on the supporting platform 1, and a driving wheel 11 is connected to the output shaft of the driving motor 10. The two ends of the wheel center axis can be fixed by threaded nuts. The left and right sides of the driving wheel 11 are respectively against the two wheels 12 to be tested, and when the driving wheel 11 rotates, it drives the wheels 12 to be tested on both sides to rotate. The telescopic end of the telescopic driving device 5 is hinged with an articulated connecting plate 6, and the end of the articulated connecting plate 6 away from the telescopic driving device 5 is hinged to the upper end of the second rocker arm 4. The articulated connecting plate 6 is also hinged with a swing arm 7, and the swing arm 7 and the second rocker arm 4 are located on the same side of the articulated connecting plate 6. The end of the swing arm 7 away from the articulated connecting plate 6 is connected to the connecting piece, and the end of the connecting piece away from the swing arm 7 is hinged to the upper end of the first rocker arm 3.

[0042] In actual use, the roller coaster wheel performance synchronization test system can realize the performance test of the wheel 12 to be tested by changing the two parameters of speed and pressure. First, in terms of speed, by changing the rotation speed of the drive motor 10, it can be used to simulate roller coasters with different running speeds. According to the circumference ratio being equal to the rotation speed ratio, it is known that the diameter of the driving wheel 11 is d1, the diameter of the tested wheel is d2, and the actual rotation speed n2 of the tested wheel is simulated, and the driving wheel 11 is set to have a rotation speed n1 = d1 / d2×n2; in terms of pressure, the telescopic drive device 5 can be used to apply different loading forces to the wheel 12 to be tested. Specifically, since the telescopic drive device 5, the articulated connecting plate 6, the swing arm 7, the first rocker arm 3 and the second rocker arm 4 constitute a five-bar linkage, when the telescopic drive device 5 is extended, the articulated connecting plate 6 and the telescopic end of the telescopic drive device 5 are driven to rise. Through the action of the connecting rod mechanism, the angle between the first rocker arm 3, the second rocker arm 4 and the wheel 12 to be tested thereon and the driving wheel 11 is reduced, and the pressure is increased; on the contrary, when the telescopic drive device 5 is contracted, the angle between the second rocker arm 4 and the wheel 12 to be tested thereon and the driving wheel 11 is increased, and the pressure is reduced. After the rotation speed and pressure are set, the equipment is put into operation, and the driving wheel 11 can drive the two wheels 12 to be tested to rotate synchronously.

[0043] In this embodiment, the support platform 1 is mounted on the support base 2 by screws. Specifically, a plurality of fixing plates are provided on the lower surface of the support platform 1, and a plurality of fixing through holes are provided on each fixing plate. The screws are passed through the fixing through holes and fixed to the support base 2, so that the support platform 1 can be fixed, thereby ensuring the stability of each component on the support platform 1.

[0044] In this embodiment, the driving motor 10 is an existing variable frequency motor, and the speed of the driving motor 10 can be changed by changing the frequency setting of the inverter.

[0045] In this embodiment, the telescopic drive device 5 is a cylinder, and the cylinder is connected to an air compressor through an air intake pipe. The connection method between the cylinder and the air intake pipe is the prior art, such as a two-position three-way electromagnetic reversing valve is provided on the air intake pipe, and the two air outlets of the two-position three-way electromagnetic reversing valve are respectively connected to the two air inlets of the cylinder through two pipes, and the gas from the air compressor can enter the required chamber of the cylinder through the reversing action of the two-position three-way electromagnetic reversing valve; or, only one air intake pipe can be provided, and the gas from the air compressor is connected to one of the air inlets and one of the chambers through the air intake pipe, and the other air inlet and the chamber are directly connected to the atmosphere. In actual use, the telescopic action of the cylinder telescopic rod can be realized by only introducing or exhausting air into this chamber. Of course, these are all conventional settings of the prior art, so they will not be further described here.

[0046] In this embodiment, the connecting member is a screw rod 8, and an adjustment plate is provided at one end of the swing arm 7 near the screw rod 8 (i.e., the left end in the figure), and an adjustment hole is provided on the adjustment plate. The end of the screw rod 8 near the swing arm 7 passes through the adjustment hole, and at least two adjustment nuts 9 are threadedly connected to the screw rod 8. At least one adjustment nut 9 is provided on both sides of the adjustment plate. In actual use, by adjusting the positions of the adjustment nuts 9 on both sides, the spacing between the first rocker arm 3 and the swing arm 7 can be changed, and the spacing between the first rocker arm 3 and the second rocker arm 4 to the middle driving wheel 11 can be further changed. The purpose of such a setting is that due to the change in spacing, the test of wheels 12 of different sizes to be tested can be achieved.

[0047] In this embodiment, three adjusting nuts 9 are provided. One adjusting nut 9 is provided on the side of the adjusting plate close to the first rocker arm 3, and two adjusting nuts 9 are provided on the side of the adjusting plate away from the first rocker arm 3. The two adjusting nuts 9 are provided on the same side to prevent loosening and avoid axial movement of the screw rod 8 due to loosening of the adjusting nuts 9.

[0048] In this embodiment, three hinged supports are provided at the upper end of the supporting platform 1, and the lower end of the first rocker arm 3, the lower end of the second rocker arm 4 and the fixed end of the telescopic driving device 5 are respectively hinged to the three hinged supports through hinge shafts.

[0049] In addition, the upper end of the first rocker arm 3 is also hinged with a hinge shaft, and the screw rod 8 is welded to the hinge shaft; and the swing arm 7 and the hinge connecting plate 6, the second rocker arm 4 and the hinge connecting plate 6, and the telescopic end of the cylinder and the hinge connecting plate 6 are all hinged through the hinge shaft. And anti-loosening pins are inserted at both ends of each of the above-mentioned hinge shafts to prevent the hinge shaft from axially moving. The anti-loosening pin can be a pin structure with an axial direction perpendicular to the axial direction of the hinge shaft, or other clip structures.

[0050] In this embodiment, the hinged connecting plate 6 is a triangular plate, and the three corners are all arc transitions to avoid accidental injuries to workers by sharp parts.

[0051] Embodiment 2

[0052] like Figure 2 As shown, this embodiment provides a test method of a roller coaster wheel performance synchronization test system 100, based on the roller coaster wheel performance synchronization test system 100 disclosed in the first embodiment, comprising the following steps:

[0053] S1, assembling a roller coaster wheel performance synchronization test system, determining test parameters, and then installing two wheels 12 to be tested.

[0054] S2. Start the air compressor and set the cylinder pressure.

[0055] S3, starting the driving motor 10, and setting the speed of the driving motor 10.

[0056] S4. The driving wheel 11 drives the wheel to be tested 12 to rotate according to the set parameters.

[0057] S5. Complete the test according to the set time and remove the wheel under test.

[0058] S6. Carry out performance testing according to the test standards.

[0059] In this embodiment, the performance test in step S6 includes a wear resistance test, a load-bearing capacity test and a lagging quality test. The specific contents of the three tests are as follows:

[0060] Wear resistance test: The two test wheels 12 are rotated synchronously for a set time, and the wear degree is obtained by comparing the outer diameter D1 before rotation and the outer diameter D2 after rotation of the two test wheels 12. The standard GB8408 requires that the wear degree of the main wheel is less than 2.5% and less than 6mm; the wear degree of the side wheel and the bottom wheel is less than 2.5% and less than 4mm. The wear resistance of the test wheel 12 can be judged by this standard.

[0061] Load-bearing capacity test: Apply different air pressures according to the load-bearing capacity requirements, run at a specified speed, and observe the integrity of the wheel 12 to be tested.

[0062] Lagging quality test: After running for a certain period of time at the set speed and pressure, observe whether the cladding surface of the wheel 12 to be tested is complete, and whether there are defects such as cracks, subsidence and bubbles. The temperature measurement function of the infrared thermal imager can also be used to test the heating speed and the maximum allowable operating temperature of different wheels 12 to be tested.

[0063] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A roller coaster wheel performance synchronization test system, characterized in that: The invention comprises a supporting platform, the upper end of which is hinged with the lower end of the first rocker arm, the lower end of the second rocker arm and the fixed end of the telescopic driving device; the first rocker arm and the second rocker arm can be rotatably connected to the wheel to be tested; a driving motor is fixed to the supporting platform, the output shaft of the driving motor is connected with a driving wheel, the two sides of the driving wheel are respectively abutted against the two wheels to be tested; the telescopic end of the telescopic driving device is hinged with an articulated connecting plate, the end of the articulated connecting plate away from the telescopic driving device is hinged to the upper end of the second rocker arm, a swing arm is also hinged on the articulated connecting plate, the end of the swing arm away from the articulated connecting plate is connected to a connecting member, and the end of the connecting member away from the swing arm is hinged to the upper end of the first rocker arm.

2. The roller coaster wheel performance synchronization test system according to claim 1, characterized in that: The supporting platform is mounted on the supporting base by screws.

3. The roller coaster wheel performance synchronization test system according to claim 1, characterized in that: The driving motor is a variable frequency motor.

4. The roller coaster wheel performance synchronization test system according to claim 1, characterized in that: The telescopic driving device is a cylinder, and the cylinder is connected to an air compressor through an air intake pipe.

5. The roller coaster wheel performance synchronization test system according to claim 1, characterized in that: The connecting member is a screw rod, and an adjustment plate is provided at one end of the swing arm close to the screw rod, and an adjustment hole is provided on the adjustment plate. One end of the screw rod close to the swing arm passes through the adjustment hole, and at least two adjustment nuts are threadedly connected to the screw rod, and at least one adjustment nut is respectively provided on both sides of the adjustment plate.

6. The roller coaster wheel performance synchronization test system according to claim 5, characterized in that: There are three adjusting nuts, one of which is provided on a side of the adjusting plate close to the first rocker arm, and two of which are provided on a side of the adjusting plate away from the first rocker arm.

7. The roller coaster wheel performance synchronization test system according to claim 1, characterized in that: The upper end of the supporting platform is provided with three hinged supports, and the lower end of the first rocker arm, the lower end of the second rocker arm and the fixed end of the telescopic driving device are respectively hinged to the three hinged supports.

8. The roller coaster wheel performance synchronization test system according to claim 1, characterized in that: The hinged connecting plate is a triangular plate.

9. A method for testing a roller coaster wheel performance synchronization test system, characterized in that: The roller coaster wheel performance synchronization testing system according to any one of claims 1 to 8 comprises the following steps: S1. Assemble the roller coaster wheel performance synchronization test system, determine the test parameters, and then install two wheels to be tested; S2. Start the air compressor and set the cylinder pressure; S3, start the drive motor and set the drive motor speed; S4, the driving wheel drives the wheel to be tested to rotate according to the set parameters; S5. Complete the test according to the set time and remove the tested wheel; S6. Carry out performance testing according to the test standards.

10. The testing method of the roller coaster wheel performance synchronization testing system according to claim 9, characterized in that: The performance tests in step S6 include a wear resistance test, a load-bearing capacity test, and a lagging quality test; Wear resistance test: The two wheels to be tested rotate synchronously for a set time, and the outer diameters of the two wheels to be tested are compared, the diameter D1 before rotation and the diameter D2 after rotation. (D1-D2) / D1 is the degree of wear; Load-bearing capacity test: Apply different air pressures according to the load-bearing capacity requirements, run at the specified speed, and observe the integrity of the wheel to be tested; Rubber coating quality test: After running for a certain period of time at the set speed and pressure, observe whether the surface of the wheel coating to be tested is intact, and whether there are cracks, sinking and bubbles. The temperature measurement function of the infrared thermal imager can also be used to test the heating speed and the maximum allowable operating temperature of different wheels to be tested.

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