• 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:
    SUMMARY The present invention provides a dust control seal (100) for rock drilling comprising an elastically continuous disc structure (101) having upper (102) and lower (104) surfaces and an edge (110) surrounding the disc structure (101), said structure (101) 101) comprises at least one through-opening (106) in the upper (102) and lower (104) surface of the elastic continuous disc structure (101), said opening being delimited by a cradle (108), a plurality of adjacent resilient tongues (112a-f) the habit of resilient tongue (112) is defined by said cradle (108), a first side edge (122), a second side edge (124) and an outer edge (114) and an upper and a lower side (128), 130), said plurality of resilient tongues (112a-e) projecting from said cradle (108), and said outer edges (114a-e) of said resilient tongues (112a-e) together defining a circular opening (116) adapted to accommodate the rod (118) has a bergb orr (120), said plurality of tongues (112) being formed integrally with said resiliently continuous disc structure (101). The invention also provides a rock drilling unit comprising such a dust control seal.
    公开号:SE1350087A1
    申请号:SE1350087
    申请日:2013-01-28
    公开日:2014-07-29
    发明作者:Carl Samuelson
    申请人:Trelleborg Ind Ab；
    IPC主号:
    专利说明:

    SUMMARY The present invention provides a dust control seal (100) for rock drilling comprising an elastically continuous disc structure (101) having upper (102) and lower (104) surfaces and an edge (110) surrounding the disc structure (101), said structure (101) 101) comprises at least one through-opening (106) in the upper (102) and lower (104) surface of the elastic continuous disc structure (101), said opening being delimited by a cradle (108), a plurality of adjacent resilient tongues (112a-f) the habit of resilient tongue (112) is defined by said cradle (108), a first side edge (122), a second side edge (124) and an outer edge (114) and an upper and a lower side (128), 130), said plurality of resilient tongues (112a-e) projecting from said cradle (108), and said outer edges (114a-e) of said resilient tongues (112a-e) together defining a circular opening (116) adapted to accommodate the rod (118) has a bergb orr (120), said plurality of tongues (112) being formed integrally with said resiliently continuous disc structure (101). The invention also provides a rock drilling unit comprising such a dust control seal. 13-11-07 949 \ smirrie1ilewc01A / VorkingCopiesS 119 20131021_21 061476_Applicafiontext_DE7 3102823oc AWAPATENT ABTrelleborg lndustri AB Kontor / HandlaggareAnsOkningsnrVar referens MalmO / Mikael Bergstrand / NYBE6141 of an elastically cohesive disc structure. The present invention also comprises a method of using a sac: dust control seal to protect a rock drilling unit, as well as a rock drilling unit comprising such a dust control seal.
    Technical baking round When rock drilling, stones and sand particles, rock dust, can be forced out of the drilled hole and pollute the surroundings. Efforts have been made to tat um-Met closest to the drilled hole with the help of different types of tat equipment. It is generally easy to take at a distance from the drill, but it is more challenging to take near the drill rod. Typically, the drill bit has a larger diameter than the drill rod and the drill rotates when drilling. The sealing equipment must therefore be able to receive and be penetrated by the drill bit and the spirit can give a good seal when it houses the narrower drill rod.
    Traditionally, the equipment that has been used to close the area closest to the drill has been an elastic disc with an opening. The most commonly used is a rubber disc with a thickness of about 20 mm and a diameter of about 300 mm. The disc has a centrally arranged opening for which the diameter is dimensioned after the drilling step. Such a disc provides sufficient sealing but its service life is very short. Usually such a disc must be replaced after only one or two days of use. The short replacement intervals are costly and unsatisfactory.
    Others sat to take the area closest to the drill has been struck. Examples of such alternative methods can be found in US3800890 and GB1428322.
    US3800890 describes a complex seal between two plastic sheets. Each of these discs includes a central aperture and slots axially directed from the center of the aperture. One of the discs rotates while the other is fixed. The plastic discs that form the seal were subjected to severe conditions during a drilling 11/7/2013 9:49 AM \ smimefilewcOlMork ngCop es $ 1119 131021_21361476_Applicatiortext_DET 31 0282 doc 2 drilling. Consequently, this seal does not have a ridiculously long lifespan and is more expensive to manufacture.
    GB1428322 describes a sealing arrangement consisting of a ring having a number of resilient tongues stacking radially. The tongues are inclined in relation to the plane of the outer ring. Consequently, there is a free air passage through the seal and thus a great risk that dust can come out through the seal and thereby contaminate the environment near the drill.
    Consequently, there is a need for an improved dust control seal adapted for use in rock drilling.
    Summary of the Upofinnino The present invention generally aims to eliminate or at least reduce the problems discussed above as well as other problems known in the art. This Ors with a dust control sealant in accordance with the appended claims.
    In a first aspect, the invention provides a rock control seal for rock drilling comprising an elastically continuous disc structure having upper and lower surfaces and an edge surrounding the disc structure, said structure comprising at least one through opening in the upper and lower surface of the elastic structure. said opening being delimited by a cradle, a plurality of resilient tongues thereby habitably resilient tongue being delimited by said cradle, a first side edge, a second side edge and an outer edge and an upper and a lower side, said plurality of resilient tongues projecting from said rock, and wherein said outer edges of said resilient tongues together define a circular opening adapted to accommodate the rod of a rock drill, said plurality of tongues being integrally formed with said resiliently continuous disc structure and arranged adjacent to each other in relation to each other.
    As described herein, the term "dust control seal" refers to a device for preventing dust from entering the vicinity of the drill rod of a rock drill. Typically, the dust control seal is part of a larger seal arrangement to prevent dust from entering the major, near a rock drilling unit. In addition, such a seal typically has the appearance of a circular disc with a centrally located circular opening. 2013-11-07 9 49 lsrrilmefilewc0lMorkingCopiesV19 2013102121061476_Apoicatientext_DE '3 0282.3.dec 3 As described herein, the term "elastically cohesive sheet construction" refers to a flat construction made of a single elastic material in one piece.
    As described herein, the term "plurality of resilient tongues" refers to a group of at least two, but preferably at least five resilient tongues. The tongues are formed in one piece with the rest of the disc construction and therefore of course made of elastic materials like the rest of the elastic continuous disc construction. The feature that said plurality of resilient tongues are "arranged next to each other in relation to each other" is intended to mean that the tongues are so arranged arranged in relation to each other that together they form a disc construction with no open space except for said circular opening. When a suitable drilling rig is housed in the opening, a tight closure is formed, which prevents rock dust from escaping into the immediate vicinity.
    In a preferred embodiment, there are grooves in some of the resilient tongues along said cradle.
    In an even more preferred embodiment, there are grooves in all the resilient tongues on both sides along the said cradle.
    In a preferred embodiment, the elastic cohesive sheet construction is made of materials selected from the group of polyurethane and thermoplastic elastomers (TPE). Thermoplastic elastomers, or thermoplastic rubbers, are a class of copolymers or a physical mixture of polymers, consisting of materials having both thermoplastic and elastomeric properties. Typical and commercially available examples of TPE materials such as styrene block copolymers, polyolefin blends, elastic alloys (TPE-v or TPV), thermoplastic polyurethanes, thermoplastic copolyester and thermoplastic polyamides. In order to qualify as a thermoplastic elastomer, a material must have three essential properties. The lost ones can be stretched to medium stretches and, when removing the whipping cream, can be used to something close to the original shape. They must be machinable in a narrow condition at elevated temperatures. Finally, they must not have significant creep.
    In a preferred embodiment, the thickness of the elastic continuous sheet construction is in the range of 10 to 40 mm.
    In a preferred embodiment, the resilient tongues have a thickness in the range of 1.5 to 4 mm. 2013-11-07 9.49 VsmImefilewc01MorkingCopies $ 1119 2013102121061476_Applicatientext_DL 1..310282.3.doc 4 In a preferred embodiment, the grooves of the resilient tongues have a depth in the range of 0.3 to 1.5 mm.
    In a second aspect, the invention provides the use of a dust control seal according to the first aspect for protecting the local environment and machinery in a rock drilling unit from dust produced during rock drilling.
    In a third aspect, the invention provides a rock drilling unit comprising a partial enclosure, a drill rod having a drill bit at one end and a machine for rotating the drill rod, said drill bit and a portion of the rod being housed in said partial enclosure arranged to engage the area in the vicinity of the drill rod together with the rock in which a hall is to be drilled, said enclosure having an opening adapted for receiving the drilling rods, a dust controlling seal according to the first aspect of the invention being arranged in said opening on a slant set of said rod protrudes through the circular opening of the dust-controlling seal, thereby preventing dust from leaching out through the opening.
    Brief Description of the Drawings The present invention will now be described with reference to the accompanying figures, in which: Figure 1 shows a perspective view of a dust control seal according to the present invention, Figure 2 shows a cross section of a dust control seal according to the present invention, Figure 3 shows a top view of a resilient tongue of the dust controlling seal of the present invention; Figure 4 shows a cross-sectional side view of a resilient tongue of the dust controlling seal of the present invention. Figure 5 describes how a plurality of resilient tongues together define a circular aperture and form a seal, Figure 6 shows the dust control seal arranged in a partial enclosure and housing a drill rod comprising a drill, and Figure 7 describes a mobile rock drilling unit comprising a partial containment comprising a dust control seal. 2013-11-07 949 \ smImefilewc01 1/1 / orkirgCopes $ 119 20131021_21061476._Applicatiortext_DET 310282 3 doc Detailed description of the invention The present invention aims to provide an improved dust control seal in connection with a rock drilling unit to be used. The sealant has an Okad lifelong comparison with sealants according to the state of the art. In addition, the dust control seal is relatively simple to manufacture. Both of these factors lead to reduced costs for the end user.
    The present invention is based on the idea of providing a dust control seal where the material subjected to stress when the drill is used, i.e. the brush, is sufficiently flexible so as not to break, but the spirit is strongly deformed when the drill bit penetrates the dust-controlling seal or when the rod is rotated and moved up and down during drilling. At the same time, the dust-controlling seal must provide a sufficiently solid MI * against rock dust when drilling.
    Since the rod of the drill has a smaller diameter than the drill bit, all an opening of the dust controlling seal is required, the vane of the shaft must be accommodated during drilling, has a smaller diameter than the drill bit. Consequently, the drill must be forced through the dust-controlling seal, which leads to a part of the dust-controlling seal being subjected to too much stress while the drill bit is forced through. By often using resilient tongues as a means of preventing rock dust from being pushed out of the drill tail, the dust-controlling seal can be more numerous against subsequent drilling.
    Furthermore, since the dust control seal must fit the rod around the rod during drilling, to prevent rock dust from being pushed out of the drill tail, the dust control seal may intervene with the rod during drilling. The use of resiliently arranged resilient tongues is a way of obtaining such a suitable fit.
    Finally, since the dust control seal of the present invention is integrally formed, the manufacturing process is relatively simple and straightforward.
    Such a dust controlling seal 100 is shown in Figures 1 and 2. It consists of an elastically cohesive disc structure 101 with an upper surface 102 and a lower surface 104. The structure is formed in a single, integral piece. Typically, the elastic cohesive sheet construction is made of polyurethane or a thermoplastic elastomer. 2013-11-07 9.49 0sm mefilewcOlMorkingCopies $ 119120131021_21061476_Applicationtext_DET.310232.3.doc 6 The structure 101 is surrounded by an edge 110. used. The dust controlling seal typically has a defined thickness, t. The thickness "t" is typically in the range of 10 to 40 mm. The value kir "t" below 10 mm can lead to reduced service life. The value Over mm can lead to reduced elasticity and less good sealing properties.
    There is an opening 106 in the resiliently connected disc structure from the upper 102 to the lower surface 104. The opening is defined by a cradle 108. There are a plurality of resilient tongues 112a-e projecting from the cradle 108 and the outer edges 114a-e of these tongues 112a-e together define a circular opening. The opening is adapted to accommodate a drill rod. When a drill penetrates the dust controlling seal 100, the resilient tongues 112a-e bend, causing the drill to pass. When the drill has passed through the dust control seal 100 and is ready to participate in a drilling operation, the resilient tongues 112a-e bend back and the outer edges 114a-e again delimit the circular opening 116.
    Typically, the resilient tongues 112a-e may include grooves 126 adjacent the cradle 108. In a preferred embodiment, all resilient tongues 112a-e have such a groove 126 on the upper 128 or lower 130 side. The purpose of such grooves is to increase flexibility and facilitate penetration through a drill bit.
    Referring now to Fig. 3, the habit of resilient tongue 112 has a first straight side 122 and a second straight side 124. The outer edge 114 is bag-shaped and defines a portion of a circular opening 116. The cradle 108 from which the resilient tongue protrudes anxiety down as well as a saving 126 are also indicated.
    Figure 4 shows a cross-sectional view from the side of a resilient tongue 112. As already shown in Figure 3, the tongue 112 projects from the cradle 108 and there are grooves 126 adjacent the cradle 108 on the upper 128 and lower 130 side of the tongue 112. The depth "g" for the groove 126 is also indicated in figure 4. The thickness of a resilient tongue 112, which corresponds to g + tr + gi in figure 4, amounts to 1.5 to 4 mm and is typically about 2 mm. The depth of the groove 126 is 0.3-1.5 mm and is usually about 0.5 mm.
    Figure 5 shows how the outer edges 114a-e of the resilient tongues 112a-e in the opening 106 together delimit the opening 116. The tongues are arranged in the same plane and next to each other in such a way that there are no 7/13/2013 9.49 \ smImefiiewc01 VVorkingCop es $ 119120131021_21061476_Applicationtext_DET.310282.3.doc 7 some space between them except at the opening 116. When a drill rod is housed in the opening 116 in such a manner as the outer edges 114a-e engage with the said stem, an excellent support is obtained.
    Figure 6 shows the part of a rock drilling unit where a dust control seal 100 is arranged in a partial enclosure 132. The seal 100 houses a drill rod 118 comprising a drill bit 119. The drill 119 is narrowly through the seal 100 and is ready to drill.
    Figure 7 describes a mobile rock drilling unit comprising a partial enclosure 132 including the dust controlling seal. The drill bit 119 furthest out on the drill rod 118 has drilled a hole in the rock 136. The partial enclosure and the rock 136 together define a closed space near the drilled tail. Rock dust produced in the drilling process is prevented from coming out of the enclosed space and contaminates the near million, including the machinery 134 of the rock drilling unit.
    Those skilled in the art will appreciate that the present invention is in no way limited to the preferred embodiments described above. On the contrary, many modifications and variations are possible within the scope of the appended claims. For example, the outer geometry of the elastic disc structure 101 is shown only to be cylindrical as an example.
    Other geometries, e.g. a rectangular geometry, is equally possible.
    In addition, variations of the described embodiments may be understood and performed by those skilled in the art upon practice of the invention according to the claims, a study of the drawings, the description and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plural. The mere fact that certain measures or features are included in the board's different dependent requirements does not mean that a combination of these measures cannot be used to advantage. 2013-11-07 9 49 \ smimefilewc011VVorkingCopies $ 119 20131021_21061476_Applicationtext_DET 310282.3 doc 8
    权利要求:
    Claims (9)
    [1]
    Dust control seal (100) for rock drilling consisting of an elastically continuous disc structure (101) having upper (102) and lower (104) surfaces and an edge (110) surrounding the disc structure (101), said structure (101) comprising at least one through-opening (106) in the upper (102) and lower (104) surface of the elastic continuous disc structure (101), said opening being delimited by a cradle (108), a plurality of resilient tongues (112a-f) forming habit resilient tongue (112) is defined by said cradle (108), a first side edge (122), a second side edge (124) and an outer edge (114) and an upper and a lower side (128, 130), said plurality resilient tongues (112a-e) project from said cradle (108), and said outer edges (114a-e) having said resilient tongues (112a-e) together define a circular opening (116) adapted to accommodate the rod (118). ) of a rock drill (120), can be characterized in that said plurality of tongues (112) are formed in a piece with said elastic cohesive disc structure (101) and of aft they are arranged next to each other in relation to each other.
    [2]
    Dust control seal (100) according to claim 1, characterized by all the grooves (126) in some of the resilient tongues (112) along said cradle (108). 25
    [3]
    Dust control seal (100) according to claim 2, characterized in that there are grooves (126) in all resilient tongues (112) on both sides (128, 130) along said cradle (108).
    [4]
    Dust control seal (100) according to any one of claims 1-3, characterized in that the elastic cohesive sheet construction is made of materials selected from the group of polyurethane and thermoplastic elastomers (TPE).
    [5]
    Dust control seal (100) according to any one of claims 1-4, characterized in that the thickness of the elastic continuous disc structure (101) is in the range from 10 to 40 mm. 201111-07 9 49 \ smimefilewc01 l / VorkingCopies $ 119 20131021_21061476_Appiicationtext_DET 310282.3.doc 9
    [6]
    Dust control seal (100) according to any one of claims 1-5, characterized in that the resilient tongues (112) have a thickness in the range of 1.5 to 4 mm. 5
    [7]
    Dust control seal (100) according to any one of claims 1-6, characterized in that the groove (126) of the resilient tongues (112) has a depth in the range of 0.3 to 1.5 mm.
    [8]
    Use of a dust control seal (100) according to any one of claims 1-7, for protecting the near million and machinery in a rock drilling unit from dust produced during rock drilling.
    [9]
    A rock drilling unit comprising a partial enclosure (132), a drill rod (118) having a drill bit (119) at one end and a machine (134) for rotating the drill rod, said drill bit (119) and a portion of the rod (118 ) are located in the said patella enclosure (132) which is arranged to seal the area near the drill rod together with the rock (136) in which a hole is to be drilled, said enclosure (132) having an opening adapted to receive the drill rod (118). ), characterized in that a dust controlling seal (100) according to any one of claims 1 - 7 adapted for said rod (118) has been arranged in said opening (116) in such a way that said rod (118) protrudes through a circular opening (116). ) of the dust-controlling seal (100), thereby preventing dust from leaching out through the opening. 2013-11-07 9.49 \ strimefilewcOl VVorkingCopies $ 119120131021_21061476_Applicationtext_DET 310282.3.c =
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    同族专利:
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    SE537317C2|2015-04-07|
    WO2014116158A1|2014-07-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3173502A|1960-10-31|1965-03-16|Terry A Overby|Rotating control head|
    SE370106B|1973-02-01|1974-09-30|Atlas Copco Ab|
    US3965998A|1974-12-19|1976-06-29|Ingersoll-Rand Company|Dust control hood and dust control system|
    US4321975A|1980-06-02|1982-03-30|Dyer Ronald S|Slurry diverter|
    AT367163B|1980-10-15|1982-06-11|Ver Edelstahlwerke Ag|COMPRESSED AIR HAMMER|CN106437572A|2015-10-23|2017-02-22|鄂托克前旗长城六号矿业有限公司|Dry drilling opening dust extractor|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1350087A|SE537317C2|2013-01-28|2013-01-28|Dust control seal for rock drilling, use of such seal and rock drilling unit including such seal|SE1350087A| SE537317C2|2013-01-28|2013-01-28|Dust control seal for rock drilling, use of such seal and rock drilling unit including such seal|
    PCT/SE2013/051488| WO2014116158A1|2013-01-28|2013-12-11|Dust controlling device|
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