• 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:

    公开号:SE1150042A1
    申请号:SE1150042
    申请日:2011-01-24
    公开日:2011-08-06
    发明作者:David Francis Biggin；Walter Ray Marks
    申请人:Metso Minerals Ind Inc；
    IPC主号:
    专利说明:

    [4] The invention relates to a spindle crusher comprising a spindle for use in quarrying rock, stone or other material in a crushing space.
    [5] Each of the spindle arms is formed by a pair of substantially vertically oriented flanges with an underlying joining web to define a channel. The channel formed between the pair is open to the top.
    [6] In the embodiment where the channel is open vertically upwards, the pair and the web form a connecting beam between the central hub and the outer edge of the spindle. The connecting beam constituted by each spindle arm has a shear center usually during the joining life of the beam. Such a configuration minimizes torsional damage which typically reduces the strength of open sections relative to closed sections of similar size.
    [7] Various other functions, objects and advantages of the invention will become apparent from the following description taken in conjunction with the drawings.
    [8] The drawings illustrate the most advantageous embodiment currently contemplated for carrying out the invention.
    [9] Fig. 1 is a schematic illustration of a spindle stone crusher.
    [10] Figure 2 is a section for a spindle stone crusher according to the prior art, including a spindle according to a prior art type.
    [11] Fig. 3a is a partial cross-sectional view of a spindle according to a prior art type. 10 15 20 25 30
    [12] Figure 3b is a cross-sectional view of an arm in a spindle according to a prior art type.
    [13] Fig. 4 is a perspective view of a composite spindle according to this publication for the present view mounted in shell construction in a spindle crusher.
    [14] Figure 5 is an exploded view of a part of a spindle crusher.
    [15] Fig. 6 is a sectional view taken along line 6-6 of Fig. 4; and
    [16] Fig. 7 is a series of sectional views of alternative embodiments of the cross-sectional shape of spindle arms constructed in accordance with the present invention.
    [17] Figure 1 illustrates a common use of a rock crushing system 11. The figure illustrates that a spindle stone crusher 10 is usually placed in a shaft 12 with a bottom wall 14.
    [18] Fig. 2 illustrates a cross-sectional view of a spindle stone crusher 10 according to the prior art.
    [19] The upper part 40 of the main shaft 38 is supported by a pin 39 which is included in a central hub 42 of a spindle 44. The spindle 44 is mounted on the upper top shell 26 and comprises at least a pair of spindle arms 46 supporting the central hub 42, as illustrated.
    [20] Fig. 3a gives a detailed view of a spindle 44 according to the prior art used in a spindle stone crusher 10 shown in Fig. 2. As illustrated in Fig. 3a, the spindle 44 comprises a central hub 42 integrated with a pair of spindle arms 46. Each one of the spindle arms 46 extends outwardly and is connected to an outer edge 52 which includes a series of mounting holes 54 for attaching the spindle 44 to the upper top shell 26, as described.
    [21] Figure 3b illustrates a cross-sectional view of a spindle arm 46. As illustrated in Figure 3b, the spindle arm 46 has a substantially hollow central cavity 56. The cavity 56 is defined substantially by two side walls 58, an upper wall 60 and a lower wall 62. The walls are formed. a durable steel material, and is usually formed by sand casting. During the formation of the spindle arms 46 in the prior art spindle 44, sand cores must be supported in a mold during the casting preparation process. Furthermore, the closed cavity 56 must include upper through holes 64 and lower through holes 66 to provide access to lubrication lines and mounting means for the spindle arm guards 48 (Fig. 2).
    [22] Fig. 4 illustrates a spindle structure 68 constructed in accordance with the invention.
    [23] Fig. 5 shows an exploded view of the spindle structure 68. The spindle structure 68 comprises a spindle 72, a pair of spindle arm guards 74, edge liner 84 and a spider housing 76.
    [24] The spindle part 72 comprises a pair of spindle arms 78 extending from the central hub 70 and connecting to an outer edge 80. The outer edge 80 comprises a series of mounting holes 82 which allow the spindle 72 to be connected, fastened, properly to the upper top shell. 26. When the spindle 72 is mounted on the upper top shell 26, a set of edge liners 84 is placed over the outer edge 80 to provide wear resistance for the outer edge 80.
    [25] When the spindle 72 is mounted on the upper top shell 26, the spindle arm guards 74 are mounted to each spindle arm 78 to provide wear protection for the spindle arms. As illustrated in Figure 5, each spindle guard 74 includes a channel 86 so that the spindle guard 74 can be placed over the spindle arms 78 to provide wear protection for the spindle arms 78. The spindle cover 76 extends over the central hub 70 and provides additional wear protection for the spindle 72.
    [26] Each spindle arm guard 74 includes a recess 75 formed on the top of the arm guard.
    [27] Referring to Fig. 6, the coil arm guards 74 have a pair of spaced side walls 98 located adjacent each coil arm flange 90 and connected to an upper web 100. The upper web 100 extends over the upper end 94 of the coil arm 78 to prevent material and dirt from penetrating the channel 92 formed between the spaced flanges 90.
    [28] As shown in Figures 5 and 6, each of the spinneret arms 78 is formed by a pair of spaced flanges 90. The distance between the flanges 90 defines a channel 92. As shown in Figures 5 and 6, the channel 92 is open at the upper end. 94 and closed at the lower end with a joining web 96. The joining web 96 extends between the pair of spaced flanges 90 and is formed fully integral with the flanges 90. The combination of the pair of grooves 90 and the channel 92 results in each spindle arm generally having the structural properties as a beam extending from the central hub 70 to the outer edge 80.
    [29] The spindle arms 78 act as structural supports for the central hub 70 which has an upper pin which in turn supports the upper part of the main shaft 38. The crushing forces on the jacket are transmitted to the main shaft, resulting in reactive forces at the upper pin where the forces are transmitted to the central hub 70. The forces are usually horizontal and vary in extent and direction which is determined by the rotational movement in the main axis and the crushing resistance of the stone in the crushing space. Accordingly, the loads imposed on the spindle are sometimes transverse, in whole or in part, to the direction defined by the length of the spindle arms 78 and the hub 70 extending over the outer edge. All loads from the main shaft carried by the spindle arms 78 must be balanced, balanced, by the support forces of the nodes between the arms on the outer edge and the upper top shell, but the transverse force components are the most critical for deformations and stresses in the spinneret arms 78.
    [30] The shear center of a beam is a point on a cross section where a transverse force can be applied without inducing any torsional deformation on the beam. Open sections are generally more susceptible to torsional stress and deformation than closed sections, such as circular or rectangular tubes. The shear center is the place where transverse forces must be applied to minimize torsional effects that increase with the distance between the point where the force is applied and the shear center. 10 15 20 25 30
    [31] In the embodiment shown in Figure 5, each spindle arm can be characterized as a beam supporting the central hub within the outer edge of the spindle. Each spindle arm can be represented as a straight line between the point of application of the force at the pin in the central hub and the support region on the outer edge. This straight line can be considered as a beam as the term is related to the theory of mechanics. By means of such an analysis, the shear center of the illustrated beam cross section is close to or slightly below the joining web 96 and is generally apparent from the reference 103 in Figure 6. During operation of the spindle crusher, the rotating main shaft creates a transverse force component applied to the spindle.
    [32] Configuring the spindle 72 with the open channel between a pair of spaced flanges 90 and the web 96 significantly reduces the complexity of the manufacturing process, which also reduces the cost of producing the spindle. Unlike the prior art spindle 44 which includes the closed spindle arms 46 shown in Fig. 3a, the spindle of the invention does not require special cores and openings to form the closed cavity 56, which simplifies the manufacturing process. The design of the spindle arms 78 by means of a pair of spaced flanges 90 which open an open channel also enables easier access to all lubrication lines and connections without having to make access holes and openings which the spindle according to the prior art in Fig. 3a has. The open channel 92 allows greater accessibility to these components while offering the necessary strength and durability of the spindle 72.
    [33] Figure 7 shows many, different alternative embodiments for cross-sections of each of the spindle arms. In the embodiments shown in Figures 7a-7j, the cross section of each of the spindle arms is substantially U-shaped with the pair of spaced flanges 90 connected to each other with the connecting web 96. The connecting web 96 is usually placed low on the cross section and extends between the spaced flanges 90. Although the embodiments of Figures 7a-7j are described as being substantially U-shaped, it is to be understood that the term "U-shaped" refers to a shape having a pair of upwardly extending flanges 90 separated by an open channel and joined at a lower end with a transverse joining web 96.
    [34] Figure 7a illustrates an alternative embodiment comprising both an open upper channel 106 and an open lower channel 108 separated by the joining web 96. In each of the embodiments shown in Figures 7a-7j, the spindle arm comprises a channel having an open end as opposed to the prior art closed spindle arms shown in Figure 3b. In the embodiment of Fig. 7j, the flanges 90 are not parallel.
    [35] Although the spindle 72 shown and described in accordance with the present invention is intended for use with a spindle crusher, it should be understood that a similar structural component is sometimes used with conical crushers. It is noted that the design of the present invention can also be used with a conical crusher.
    [36] This description uses examples to illustrate the invention, including the best mode, and also to enable any person skilled in the art to make and use the invention.
    The patentable scope of the invention is defined by the claims and may include other examples realized by those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from what is literally stated in the claims, or if they include corresponding structural elements without significant differences from what is literally stated in the claims.
    权利要求:
    Claims (14)
    [1]
    A spindle for use with a spindle crusher comprising: a central hub and a plurality of spindle arms extending from the central hub to an outer edge, each of the spindle arms having a substantially U-shaped cross-section defined by a pair of spaced flanges who are connected .to each other through a unifying life.
    [2]
    The spindle of claim 1 wherein the flanges on each spindle arm are spaced apart to form a channel with an open upper end opposite the joining web.
    [3]
    The spindle of claim 2 wherein the spaced flanges and the joining web are integrally shaped.
    [4]
    A spindle crusher comprising: a shell structure, a spindle supported by the shell structure, the spindle having a central hub and a plurality of spindle arms extending from the central hub to an outer edge, each spindle arm being formed by a pair fl grooves spaced apart from each other to form a channel and are connected to each other by a joining web, and a plurality of spindle arm guards, each of which is mounted on a spindle arm.
    [5]
    The spindle crusher of claim 4 wherein the flanges on each spindle arm are spaced apart to define a channel with an opening at the top opposite the joining web.
    [6]
    The spindle crusher according to claim 5, wherein each of the spindle arms has a substantially U-shaped cross section.
    [7]
    The spindle crusher according to claim 6, wherein flanges and the connecting web are integrally shaped.
    [8]
    The spindle crusher of claim 4 further comprising a main shaft supported at one end of the central hub, wherein the mobility of the main shaft within the shell creates a force on the spindle. 10 15 20 25 10
    [9]
    The spindle crusher according to claim 6, wherein a shear center of a cross section of the spindle arm is located during the joining life.
    [10]
    The spindle crusher of claim 4 wherein each of the spindle arm guards covers the open upper end of the channel formed by the spaced flanges to prevent dirt from entering the open channel.
    [11]
    The spindle crusher according to claim 11, wherein each of the spindle arm guards comprises a recessed recess formed in an upper web of the spindle arm guard which accumulates the material being crushed to reduce the wear on the spindle arm guard.
    [12]
    The spindle crusher of claim 12 further comprising a spindle housing disposed over the central hub, the spindle housing comprising a recessed recess that accumulates material that is crushed to reduce wear on the spindle housing.
    [13]
    A spindle for use with a spindle crusher, comprising: a central hub, and a plurality of spindle arms extending from the central hub to an outer edge, each of the spindle arms comprising a pair of flanges spaced apart and connected to each other at one end by a joining web, the spaced ends and the joining web defining a substantially U-shaped cross-section of each spindle arm, the channel formed between the pair of spaced flanges being open at one end vertically above the joining life.
    [14]
    The spindle of claim 13, wherein a shear center of a cross section of each spindle arm is located below the joining web.
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US12/700,877|US8070084B2|2010-02-05|2010-02-05|Spider having spider arms with open channel|
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