• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A wheel gauge for a wheel, the gauge including: a flange wear measurement means for measuring the degree of wear of a flange of the wheel; and a tread wear measurement means for measuring the degree of wear of a tread of the wheel. -- 2 7 LFG 7o
    公开号:AU2013200348A1
    申请号:U2013200348
    申请日:2013-01-24
    公开日:2013-08-29
    发明作者:Graham Forbes
    申请人:Aurizon Operations Ltd；
    IPC主号:G01M17-10
    专利说明:
    1 A WHEEL GAUGE TECHNICAL FIELD [0001] The present invention relates to a wheel gauge for a wheel. The present invention has particular, although not exclusive application to railroad vehicle wheels such as train buggy wheels. BACKGROUND [0002] The reference to any prior art in this specification is not, and should not be taken as an acknowledgement or any form of suggestion that the prior art forms part of the common general knowledge. [0003] A train buggy wheel includes flat tread for bearing against the top of a rail, and a flange extending from the tread that extends downward adjacent the rail. Over time, the train buggy wheel is prone to wear whereby the tread becomes concave and the flange becomes thinner. Once the wear reaches unacceptable limits, the buggy wheel is replaced. [0004] A known plate-like wheel gauge 2 for gauging the integrity of a train buggy wheel 4 is shown in Figures 1 and 2. As shown in Figure 1, the wheel gauge 2 defines a flange slot 6 for capping a flange 8 of the wheel 4. The flange wear is deemed to be unacceptable (see Fig. 1b) when the flange 8 can be fully received in the slot 6 thereby indicating that the wheel 4 needs replacement. Otherwise, the wheel 4 need not be replaced (see Fig. 1a). [0005] As shown in Figure 2, the wheel gauge 2 further includes a pivoting arm 10 for gauging whether or not the tread wear is unacceptable: The tread wear is deemed to be unacceptable (see Fig. 2b) when the pivot 12 is fully received in a concave groove 14 in the tread 16 thereby indicating that the wheel 4 needs replacement. Otherwise, the wheel 4 need not be replaced if the pivoting arm 10 can be rocked backward and forth (see Fig. 2a) about the pivot 12 resting on the tread 16. [0006] In practice, the Applicant has perceived that buggy wheels are tested in volume and given a pass or fail based upon the foregoing binary flange and tread tests. Buggy wheels which are close to failing either one of the tests often pass the tests and so they are returned to service. Shortly thereafter, the wheels would fail the tests which makes them unsafe. However, this test failure is often not detected until the next test which may be some time after the wheel has been in service in an unsafe condition.
    2 [0007] Embodiments of the present invention provide a gauge to be used in reducing the time the wheel is in service in an unsafe condition. SUMMARY OF THE INVENTION [0008] According to one aspect of the present invention, there is provided a wheel gauge for a wheel, the gauge including: a flange wear measurement means for measuring the degree of wear of a flange of the wheel; and a tread wear measurement means for measuring the degree of wear of a tread of the wheel. [0009] Advantageously, the gauge may be used to detect when the buggy wheel is close to failing either one of the flange or tread safety tests so that closer monitoring of the wheel may then be instigated to reduce the time the wheel is in service in an unsafe condition. [00010] The gauge may further include a body for bearing each measurement means. In one embodiment, the body can be oriented in the same orientation relative to the wheel whilst both flange and tread safety measurements are performed using respective measurement means. The body may define a flange reference portion for aligning against the flange, and a tread reference portion for aligning against the tread. [00011] Each measurement means may include a pivotally mounted plate. Each measurement means may include arcuate measurement edge. Each measurement edge may include measurement graduations for aligning with a reference mark. The graduations of the track wear measurement means may be associated with numbers indicative of the track wear. [00012] Each measurement means may define an alignment point. Each measurement means may include a lock for locking the plate relative to a body of the gauge. Each lock may include a locking screw arrangement. [00013] Alternatively, each measurement means may include a laser. Each measurement means may include an electronic display. [00014] Graduations of the flange wear measurement means may be associated with numbers indicative of the flange thickness whereby the degree of flange wear can be deduced by subtracting the numbers from the known thickness of an unworn flange. Alternatively, graduations of the flange wear measurement means may be associated with numbers indicative of the degree of flange wear (as determined by subtracting the numbers from the known thickness of an unworn flange).
    3 [00015] According to another aspect of the present invention, there is provided a wheel gauge for a wheel, the gauge including: a flange thickness measurement means for measuring the thickness of a flange of the wheel; and a tread wear measurement means for measuring the degree of wear of a tread of the wheel. [00016] According to another aspect of the present invention, there is provided a wheel gauge for a wheel, the gauge including: a flange wear measurement means for measuring the degree of wear of a flange of the wheel. [00017] According to another aspect of the present invention, there is provided a wheel gauge for a wheel, the gauge including: a tread wear measurement means for measuring the degree of wear of a tread of the wheel. BRIEF DESCRIPTION OF THE DRAWINGS [00018] Preferred features, embodiments and variations of the invention may be discerned from the following Detailed Description which provides sufficient information for those skilled in the art to perform the invention. The Detailed Description is not to be regarded as limiting the scope of the preceding Summary of the Invention in any way. The Detailed Description will make reference to a number of drawings as follows: [00019] Figure 1a shows a passed flange wear test using a known wheel gauge; [00020] Figure 1 b shows a failed flange wear test using a known wheel gauge; [00021] Figure 2a shows a passed tread wear test using a known wheel gauge; [00022] Figure 2b shows a failed tread wear test using a known wheel gauge; and [00023] Figure 3 shows a wheel gauge in accordance with an embodiment of the present invention. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS [00024] According an embodiment of the present invention, there is provided a wheel gauge 50 for gauging the integrity of a train buggy wheel 4. The gauge 50 includes a flange wear measurement means 52 for measuring the degree of wear of a flange 8 of the wheel 4. A tread wear measurement means 54 is provided for measuring the degree of wear of a tread 16 of the wheel 4. Advantageously, the gauge 50 can be used to detect when the buggy wheel 4 is close to failing either one of the flange or tread safety 4 tests so that closer monitoring of the wheel 4 can then be instigated to reduce the time the wheel 4 is in service in an unsafe condition. A detailed description of the wheel gauge 50 is provided below. [00025] The gauge 50 includes a bent plate body 56 for bearing each measurement means 52, 54. The body 56 defines a flange reference portion 58 for aligning against the flange 8, and a tread reference portion 60 for aligning against the tread 16. [00026] The flange wear measurement means 52 includes a pivotally mounted plate 62 defining an arcuate measurement edge 64. The plate 62 is mounted to the body 56 with a pivot 65. The measurement edge 64 includes numbered measurement graduations 66 for aligning with a reference mark 68 on the body 56. The graduations 66 are associated with thickness numbers (e.g. ranging from 16mm onwards) indicative of the flange thickness (or separation between the plate point 70 and portion 58) whereby the degree of flange wear can be deduced by subtracting the thickness numbers, when aligned with the reference mark 68, from the known thickness of an unworn flange. [00027] The flange wear measurement means 52 further defines an alignment point 70 for aligning against the flange 8 opposite the flange reference portion 58. Further, the flange wear measurement means 52 also includes a locking screw 71 for locking the plate 62 relative to the body 56. [00028] The tread wear measurement means 54 is of similar construction to the flange wear measurement means 52. The tread wear measurement means 54 includes a pivotally mounted plate 72 defining an arcuate measurement edge 74. The plate 72 is mounted to the body 56 with a pivot 75. The measurement edge 74 includes numbered measurement graduations 76 for aligning with the reference mark 68 on the body 56. The graduations 76 are associated with numbers indicative of the track wear (i.e. depth of the groove 14) ranging from zero onwards. [00029] The tread wear measurement means 54 further defines an alignment point 80 for aligning against the tread 16 adjacent the tread reference portion 60. Further, the tread wear measurement means 54 also includes a locking screw 82 for locking the plate 72 relative to the body 56. [00030] Advantageously, the flange and tread safety tests can both be performed whilst the body 56 is held in the same orientation relative to the wheel 4. Accordingly, the body 56 may be oriented, the plates 62, 72 moved into position during measurement, and the locking screws 71, 82 locked. The gauge 50 can then be removed for convenient reading of the measurement graduations 66, 76.
    5 [00031] A person skilled in the art will appreciate that many embodiments and variations can be made without departing from the ambit of the present invention. [00032] The wheel gauge 50 of the preferred embodiment included mechanical measurement means 52, 54. Alternatively, each measurement means 52, 54 may include a laser or an electronic display. [00033] In one embodiment, graduations of the flange wear measurement means 52 can be associated with numbers indicative of the degree of flange wear (as determined by subtracting the thickness numbers in the preferred embodiment from the known thickness of an unworn flange) so that the numbers range from zero onwards. [00034] In compliance with the statute, the invention has been described in language more or less specific to structural or methodical features. It is to be understood that the invention is not limited to specific features shown or described since the means herein described comprises preferred forms of putting the invention into effect.
    权利要求:
    Claims (1)
    [1] 1. A wheel gauge for a wheel, the gauge including: a flange wear measurement means for measuring the degree of wear of a flange of the wheel; and a tread wear measurement means for measuring the degree of wear of a tread of the wheel. Dated this 24 th day of January 2013 AURIZON OPERATIONS LIMITED by my attorneys Cullens Patent and Trade Mark Attorneys
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    同族专利:
    公开号 | 公开日
    AU2013200348B2|2014-10-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN88202326U|1988-04-01|1988-11-09|张守经|Coupled tester for edge tread of wheel|
    法律状态:
    2015-02-19| FGA| Letters patent sealed or granted (standard patent)|
    优先权:
    申请号 | 申请日 | 专利标题
    AU2012900485A|AU2012900485A0||2012-02-10|A Wheel Gauge|
    AU2012900485||2012-02-10||
    AU2013200348A|AU2013200348B2|2012-02-10|2013-01-24|A Wheel Gauge|AU2013200348A| AU2013200348B2|2012-02-10|2013-01-24|A Wheel Gauge|
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