WO2020029803A1 - Cutting apparatus of tunneling machine, and tunneling machine - Google Patents

Cutting apparatus of tunneling machine, and tunneling machine Download PDF

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Publication number
WO2020029803A1
WO2020029803A1 PCT/CN2019/097689 CN2019097689W WO2020029803A1 WO 2020029803 A1 WO2020029803 A1 WO 2020029803A1 CN 2019097689 W CN2019097689 W CN 2019097689W WO 2020029803 A1 WO2020029803 A1 WO 2020029803A1
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WO
WIPO (PCT)
Prior art keywords
positioning
fixing sleeve
threaded fastener
cutting
cutting device
Prior art date
Application number
PCT/CN2019/097689
Other languages
French (fr)
Chinese (zh)
Inventor
刘玉涛
张楠
宋雨
Original Assignee
徐州徐工基础工程机械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 徐州徐工基础工程机械有限公司 filed Critical 徐州徐工基础工程机械有限公司
Priority to AU2019320140A priority Critical patent/AU2019320140B2/en
Publication of WO2020029803A1 publication Critical patent/WO2020029803A1/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C25/00Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/16Machines slitting solely by one or more rotating saws, cutting discs, or wheels
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C25/00Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/16Machines slitting solely by one or more rotating saws, cutting discs, or wheels
    • E21C25/18Saws; Discs; Wheels
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/02Locking equipment for slewable parts
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10Making by using boring or cutting machines
    • E21D9/1006Making by using boring or cutting machines with rotary cutting tools
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10Making by using boring or cutting machines
    • E21D9/1006Making by using boring or cutting machines with rotary cutting tools
    • E21D9/104Cutting tool fixtures

Definitions

  • the present invention relates to the field of construction machinery, and in particular, to a cutting device for a roadheader and a roadheader.
  • FIG. 1 shows a schematic structural diagram of a cutting device for a roadheader in the related art.
  • a cutting device of a roadheader of the related art includes a rotating shaft 1 ′ and a cutting head 2 ′ sleeved on the end of the rotating shaft 1.
  • the cutting head 2 ′ is provided with a channel 3 ′ extending toward the rotating shaft 1 ′, and 4 'is connected to the rotating shaft 1' through the tunnel 3 'to connect the cutting head 2' and the rotating shaft 1 'together.
  • the bolts connecting the rotating shaft 1 'and the cutting head 2' are easily loosened, thereby affecting the normal cutting operation.
  • the present invention aims to provide a cutting device for a roadheader and a roadheader to improve the problem that the threaded fastener is easily loosened in the prior art.
  • the present invention provides a cutting machine cutting device.
  • the cutting machine cutting device includes:
  • a cutting member provided with a channel extending toward the shaft
  • a threaded fastener connected to the shaft through the channel to connect the cutting member and the shaft together;
  • a fixing sleeve is arranged in the channel and is sleeved between the threaded fastener and the cutting member, and the fixing sleeve is relatively fixed with the threaded fastener;
  • the positioning member is movable relative to the positioning tooth to switch between a first position that restricts the rotation of the positioning tooth and a second position that allows the positioning tooth to rotate.
  • the boring machine cutting device further includes an elastic member for pushing the positioning member toward the first position.
  • the positioning teeth include:
  • the second side facing away from the first side, is used to push the positioning member toward the second position when the fixing sleeve rotates in the second direction, and the second direction is opposite to the first direction.
  • the first side is inclined downstream in the first direction in a direction away from the threaded fastener
  • the second side surface slopes downstream in the first direction in a direction away from the threaded fastener.
  • the shape of the positioning member is adapted to the shape of the groove between two adjacent positioning teeth.
  • the distance between two adjacent positioning members is L 1
  • the distance between two adjacent positioning members is L 2 , L 1 ⁇ nL 2 , and L 2 ⁇ nL 1 , where n is a natural number.
  • the number of the positioning components is N, L 2 > L 1 , and L 1 / ⁇ N.
  • the boring machine cutting device further includes a limiting member for limiting the fixing sleeve in the tunnel.
  • a roadheader including the roadheader cutting device described above.
  • the fixing sleeve can restrict the rotation of the threaded fastener, thereby preventing the problem that the threaded fastener is easily loosened.
  • FIG. 1 is a schematic structural diagram of a cutting device of a related technology
  • FIG. 2 is a schematic structural diagram of a cutting device of a roadheader according to an embodiment of the present invention
  • FIG. 3 shows a schematic side view structure of FIG. 2;
  • FIG. 4 shows an enlarged view at A in FIG. 2;
  • FIG. 5 illustrates a schematic side view structure of FIG. 4
  • FIG. 6 illustrates a schematic diagram of the internal structure of FIG. 4
  • FIG. 7 is a schematic structural diagram of a cutting member of a cutting device of a roadheader according to an embodiment of the present invention.
  • FIG. 8 shows a schematic side view structure of FIG. 7
  • FIG. 9 is a schematic structural diagram of a fixing sleeve of a cutting device of a roadheader according to an embodiment of the present invention.
  • FIG. 10 illustrates a schematic side view structure of FIG. 9.
  • Fig. 2 shows a schematic structural diagram of a cutting device of a roadheader of this embodiment
  • Fig. 3 shows a schematic structural diagram of a side view of Fig. 2
  • Fig. 4 shows an enlarged view at A in Fig. 2
  • 5 is a schematic view of the side structure.
  • the cutting device of a roadheader of this embodiment includes a shaft 1, a cutting member provided with a tunnel 3 extending toward the shaft 1, a threaded fastener 4 connected to the shaft 1 through the tunnel 3, and a A fixing sleeve 5 in the hole 3 and sleeved between the threaded fastener 4 and the cutting member 2 and a positioning portion for restricting the rotation of the fixing sleeve 5 in the hole 3.
  • the threaded fastener 4 is connected to the end surface of the shaft 1.
  • the above-mentioned holes 3 coincide with the extending direction of the shaft 1.
  • the fixing sleeve 5 is fixed relative to the threaded fastener 4, and the positioning portion restricts the rotation of the fixing sleeve 5 in the channel 3, thereby restricting the rotation of the threaded fastener 4, and solving the problem of easy loosening of threads in the related art.
  • the boring machine cutting device further includes a limiting member 10 for limiting the fixing sleeve 5 in the tunnel 3 and an elastic retaining ring provided on a side of the limiting member 10 facing away from the fixing sleeve 5.
  • the threaded fastener 4 includes a screw 4b and a nut 4a provided at one end of the screw 4b.
  • the tunnel 3 includes a first tunnel adjacent to the shaft 1 and a second tunnel connected to the first tunnel. The inner diameter of the first tunnel is smaller than the inner diameter of the second tunnel.
  • the screw 4b is connected to the shaft 1 through the first hole.
  • the nut 4a is located in the second hole.
  • the fixing sleeve 5 is disposed in the second hole and is sleeved between the nut 4 a and the cutting member 2.
  • the shape of the inner cavity of the fixing sleeve 5 is adapted to the shape of the nut 4a.
  • the fixing sleeve 5 is sleeved on the nut 4a to fix the fixing sleeve 5 and the nut 4a.
  • the cross-sectional shape of the nut 4a and the cross-sectional shape of the inner cavity of the fixing sleeve 5 are both polygons, so that the fixing sleeve 5 and the nut 4a are relatively fixed.
  • the shapes of the fixing sleeve 5 and the nut 4a may be other shapes that are not circular.
  • the fixing sleeve 5 is provided with a plurality of positioning teeth 6 arranged along the circumferential direction of the threaded fastener 4, and the cutting member 2 is provided with a restriction member 6 for restricting the positioning teeth 6 around the threaded fastener 4
  • the shape of the positioning member 7 is matched with the groove between two adjacent positioning teeth 6.
  • the positioning member 7 located between the two adjacent positioning teeth 6 restricts the positioning teeth 6 from rotating about the threaded fastener 4 so that It is possible to restrict the rotation of the threaded fastener 4 in the channel 3, and to prevent the threaded fastener 4 from loosening.
  • the fixed teeth 6 are provided on the cutting member 2, and the positioning members 7 are provided on the fixed sleeve 5.
  • the positioning member 7 is movable in the radial direction of the threaded fastener 4 to switch between a first position restricting the rotation of the positioning teeth 6 and a second position permitting the rotation of the positioning teeth 6.
  • the positioning member 7 can be moved away from the positioning teeth 6 to a position allowing the fixing sleeve 5 to rotate, and then the threaded solid member 7 can be removed from the cutting member 2 and the shaft 1 Come down to separate the cutting part 2 and the shaft 1.
  • the boring machine cutting device further includes an elastic member 8 for pressing the positioning member 7 toward the first position.
  • the cutting member 2 is provided with a receiving cavity 11 that is the same as the channel 3.
  • the receiving cavity 11 extends from the outside of the cutting member 2 to the channel 3 so that the positioning member 7 is loaded from the outside of the cutting member 2.
  • a cross section of at least a section of the receiving cavity 11 near the tunnel 3 is tapered in a direction close to the tunnel 3 to limit a distance that the positioning member 7 moves toward the tunnel 3.
  • the positioning member 11 is movably disposed in the receiving cavity 11.
  • the positioning member 11 can extend out of the receiving cavity 11 and mesh with the positioning teeth 6 to restrict the positioning teeth 6 from rotating.
  • the positioning member 11 can be retracted into the accommodating cavity 11 to allow the fixing sleeve 5 and the threaded fastening member 4 to rotate within the channel 3.
  • the position where the positioning member 7 engages with the positioning tooth 6 is the aforementioned first position, and the position where the positioning member 7 is retracted into the receiving cavity 11 is the aforementioned second position.
  • the positioning portion can only restrict the fixing sleeve 5 from rotating in the first direction, and the fixing sleeve 5 can be rotated within the channel 3 in the second direction opposite to the first direction.
  • the first direction is the direction in which the threaded fastener 4 is loosened
  • the second direction is the direction in which the threaded fastener 4 is tightened.
  • the positioning teeth 6 include a first side surface 6 a for abutting the positioning member 7, and the first side surface 6 a abuts the positioning member 7 to restrict the fixing sleeve 5 and the threaded fastener 4 from rotating in the first direction.
  • the positioning tooth 6 further includes a second side surface 6b facing away from the first side surface 6a.
  • the second side surface 6b is used to push the positioning member 7 toward the second position against the elastic force of the elastic member 8 when the fixing sleeve 5 rotates in the second direction.
  • the first side surface 6 a is inclined downstream in the first direction in a direction away from the threaded fastener 4; the second side surface 6 b is inclined downstream in the first direction in a direction far from the threaded fastener 4.
  • a connecting structure for cooperating with a tool for turning the threaded fastener 4 is provided on an end surface of the nut 4a.
  • the connection structure includes a polygonal hole provided on an end surface of the nut 4a.
  • the positioning member 7 abuts against the first side surface 6a of the positioning tooth, and neither the fixing sleeve 5 nor the threaded fastener 4 can be rotated.
  • the fixing sleeve 5 rotates in the second direction with the screw restraint 4, and the second side 6 b of the positioning tooth 6 pushes the positioning member 7 toward the second position.
  • the threaded fastener 4 is rotatable in a second direction.
  • the distance between two adjacent positioning teeth 6 is L1
  • the distance between two adjacent positioning members 7 is L2, L1 ⁇ n L2, and L2 ⁇ n L1, where n is a natural number, and therefore, the distance between the first positioning member 7 and the positioning tooth 6 in the two adjacent positioning members 7 may be smaller than the distance between the second positioning member 7 and the positioning tooth.
  • the distance between the two positioning teeth 6 makes the distance between two adjacent positioning positions of the threaded fastener 4 smaller.
  • the number of the positioning members 7 is N, L 2 > L 1 , and L 1 / L 2 -L 1 ⁇ N.
  • the fitting relationship between the positioning member 7 and the positioning teeth 6 forms a structure similar to a vernier caliper, so that the distance between two adjacent positioning positions of the threaded fastener 4 is smaller.
  • this embodiment further provides a roadheader, which includes the above-mentioned roadheader cutting device.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Road Repair (AREA)
  • Surgical Instruments (AREA)
  • Details Of Cutting Devices (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

A cutting apparatus of a tunneling machine, comprising: a shaft (1); a cutting component (2) that is provided with a pore channel (3) extending towards the shaft (1); a threaded fastening member (4) that runs through the pore channel (3) and is connected with the shaft (1) so as to connect the cutting component (2) and the shaft (1) together; a fixing sleeve (5) that is provided in the pore channel (3) and sleeved between the threaded fastening member (4) and the cutting component (2), wherein the fixing sleeve (5) and the threaded fastening member (4) are fixed relative to each other; and a positioning part used for limiting the rotation of the fixing sleeve (5) within the pore channel (3), wherein the positioning part comprises multiple positioning teeth (6) circumferentially arranged along the threaded fastening member (4) and a positioning component (7) used for limiting the circumferential rotation of the positioning teeth (6) around the threaded fastening member (4), and one of the positioning tooth (6) and the positioning component (7) is provided on the fixing sleeve (5), and the other one is provided on the cutting component (2). In addition, also disclosed is a tunneling machine comprising the cutting apparatus.

Description

掘进机切割装置和掘进机Header cutting device and heading machine 技术领域Technical field
本发明涉及工程机械领域,具体而言,涉及一种掘进机切割装置和掘进机。The present invention relates to the field of construction machinery, and in particular, to a cutting device for a roadheader and a roadheader.
背景技术Background technique
图1示出了一种相关技术的掘进机切割装置的结构示意图。结合图1所示,相关技术的掘进机切割装置包括转轴1’和套设在转轴1的端部的切割头2’,切割头2’上设有朝转轴1’延伸的孔道3’,螺栓4’穿过孔道3’与转轴1’连接,以将切割头2’和转轴1’连接在一起。在切割装置进行切割作业的过程中,由于冲击较大,连接转轴1’和切割头2’的螺栓容易松动,从而影响正常的切割作业。FIG. 1 shows a schematic structural diagram of a cutting device for a roadheader in the related art. With reference to FIG. 1, a cutting device of a roadheader of the related art includes a rotating shaft 1 ′ and a cutting head 2 ′ sleeved on the end of the rotating shaft 1. The cutting head 2 ′ is provided with a channel 3 ′ extending toward the rotating shaft 1 ′, and 4 'is connected to the rotating shaft 1' through the tunnel 3 'to connect the cutting head 2' and the rotating shaft 1 'together. During the cutting operation of the cutting device, due to the large impact, the bolts connecting the rotating shaft 1 'and the cutting head 2' are easily loosened, thereby affecting the normal cutting operation.
发明内容Summary of the invention
本发明旨在提供一种掘进机切割装置和掘进机,以改善现有技术中存在的螺纹紧固件容易松动的问题。The present invention aims to provide a cutting device for a roadheader and a roadheader to improve the problem that the threaded fastener is easily loosened in the prior art.
根据本发明实施例的一个方面,本发明提供了一种掘进机切割装置,掘进机切割装置包括:According to an aspect of the embodiment of the present invention, the present invention provides a cutting machine cutting device. The cutting machine cutting device includes:
轴;axis;
切割部件,设有朝轴延伸的孔道;A cutting member provided with a channel extending toward the shaft;
螺纹紧固件,穿过孔道与轴连接,以将切割部件和轴连接在一起;A threaded fastener connected to the shaft through the channel to connect the cutting member and the shaft together;
固定套,设在孔道内,并套设在螺纹紧固件和切割部件之间,固定套与螺纹紧固件相对固定;A fixing sleeve is arranged in the channel and is sleeved between the threaded fastener and the cutting member, and the fixing sleeve is relatively fixed with the threaded fastener;
定位部,用于限制固定套在孔道内转动,定位部包括沿螺纹紧固件的周向布置的多个定位齿和与用于限制定位齿绕螺纹紧固件的周向转动的定位部件,定位齿和定位部件中的一个设在固定套上,另一个设在切割部件上。A positioning portion for restricting the rotation of the fixing sleeve in the channel; the positioning portion includes a plurality of positioning teeth arranged along the circumferential direction of the threaded fastener; One of the positioning teeth and the positioning member is provided on the fixed sleeve, and the other is provided on the cutting member.
可选地,定位部件可相对于定位齿移动,以在限制定位齿转动的第一位置和允许定位齿转动的第二位置之间切换。Optionally, the positioning member is movable relative to the positioning tooth to switch between a first position that restricts the rotation of the positioning tooth and a second position that allows the positioning tooth to rotate.
可选地,掘进机切割装置还包括用于将定位部件朝第一位置推压的弹性部件。Optionally, the boring machine cutting device further includes an elastic member for pushing the positioning member toward the first position.
可选地,定位齿包括:Optionally, the positioning teeth include:
第一侧面,用于抵靠定位部件,以限制固定套沿第一方向转动;以及A first side for abutting the positioning member to restrict the fixing sleeve from rotating in the first direction; and
第二侧面,背对第一侧面,用于在固定套沿第二方向转动时将定位部件朝第二位置推压,第二方向与第一方向相反。The second side, facing away from the first side, is used to push the positioning member toward the second position when the fixing sleeve rotates in the second direction, and the second direction is opposite to the first direction.
可选地,Optionally,
第一侧面沿远离螺纹紧固件的方向朝第一方向的下游倾斜;The first side is inclined downstream in the first direction in a direction away from the threaded fastener;
第二侧面沿远离螺纹紧固件的方向朝第一方向的下游倾斜。The second side surface slopes downstream in the first direction in a direction away from the threaded fastener.
可选地,定位部件的形状与相邻两个定位齿之间的凹槽的形状相适配。Optionally, the shape of the positioning member is adapted to the shape of the groove between two adjacent positioning teeth.
可选地,定位部件为至少两个,相邻两个定位齿之间的间距为L 1,相邻两个定位部件之间的距离为L 2,L 1≠nL 2,且L 2≠nL 1,其中,n为自然数。 Optionally, there are at least two positioning members, the distance between two adjacent positioning members is L 1 , and the distance between two adjacent positioning members is L 2 , L 1 ≠ nL 2 , and L 2 ≠ nL 1 , where n is a natural number.
可选地,定位部件的个数为N,L 2>L 1,L 1/≤N。 Optionally, the number of the positioning components is N, L 2 > L 1 , and L 1 / ≦ N.
可选地,掘进机切割装置还包括用于将固定套限制在孔道内的限位部件。Optionally, the boring machine cutting device further includes a limiting member for limiting the fixing sleeve in the tunnel.
根据本申请的另一方面,还提供了一种掘进机,掘进机包括权上述的掘进机切割装置。According to another aspect of the present application, there is also provided a roadheader including the roadheader cutting device described above.
应用本申请的技术方案,固定套可限制螺纹紧固件的转动,从而起到防止螺纹紧固件容易松动的问题。By applying the technical solution of the present application, the fixing sleeve can restrict the rotation of the threaded fastener, thereby preventing the problem that the threaded fastener is easily loosened.
通过以下参照附图对本发明的示例性实施例的详细描述,本发明的其它特征及其优点将会变得清楚。Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative labor.
图1示出了一种相关技术的掘进机切割装置的结构示意图;FIG. 1 is a schematic structural diagram of a cutting device of a related technology;
图2示出了本发明的实施例的掘进机切割装置的结构示意图;FIG. 2 is a schematic structural diagram of a cutting device of a roadheader according to an embodiment of the present invention; FIG.
图3示出了图2的侧视结构示意图;FIG. 3 shows a schematic side view structure of FIG. 2; FIG.
图4示出了图2中A处的放大图;FIG. 4 shows an enlarged view at A in FIG. 2;
图5示出了图4的侧视结构示意图;FIG. 5 illustrates a schematic side view structure of FIG. 4; FIG.
图6示出了图4的内部结构示意图;6 illustrates a schematic diagram of the internal structure of FIG. 4;
图7示出了本发明的实施例的掘进机切割装置的切割部件的结构示意图;7 is a schematic structural diagram of a cutting member of a cutting device of a roadheader according to an embodiment of the present invention;
图8示出了图7的侧视结构示意图;FIG. 8 shows a schematic side view structure of FIG. 7;
图9示出了本发明的实施例的掘进机切割装置的固定套的结构示意图;以及FIG. 9 is a schematic structural diagram of a fixing sleeve of a cutting device of a roadheader according to an embodiment of the present invention; and
图10示出了图9的侧视结构示意图。FIG. 10 illustrates a schematic side view structure of FIG. 9.
图中:In the picture:
1、轴;2、切割部件;3、孔道;4、螺纹紧固件;4a、螺帽;4b、螺杆;5、固定套;6、定位齿;6a、第一侧面;6b、第二侧面;7、定位部件;8、弹性部件;9、弹性挡圈;10、限位部件;11、容纳腔。1. Shaft; 2. Cutting parts; 3. Channel; 4. Threaded fasteners; 4a. Nut; 4b. Screw; 5. Fixing sleeve. 6. Positioning teeth. 6a. First side. 6b. Second side. 7. Positioning components; 8. Elastic components; 9. Elastic retaining rings; 10. Limiting components; 11. Receiving cavity.
具体实施方式detailed description
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的,决不作为对本发明及其应用或使用的任何限制。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is actually merely illustrative and is in no way intended to limit the invention and its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
图2示出了本实施例的掘进机切割装置的结构示意图,图3示出了图2的侧视结构示意图;图4示出了图2中A处的放大图;图5示出了图5的侧视结构示意图。Fig. 2 shows a schematic structural diagram of a cutting device of a roadheader of this embodiment, Fig. 3 shows a schematic structural diagram of a side view of Fig. 2; Fig. 4 shows an enlarged view at A in Fig. 2; 5 is a schematic view of the side structure.
结合图1至5所示,本实施例的掘进机切割装置包括轴1、设有朝轴1延伸的孔道3的切割部件2、穿过孔道3与轴1连接的螺纹紧固件4、设在孔道3内并套设在螺纹紧固件4和切 割部件2之间的固定套5和用于限制固定套5在孔道3内转动的定位部。本实施例中,螺纹紧固件4连接在轴1的端面上。上述的孔道3与轴1的延伸方向一致。As shown in FIGS. 1 to 5, the cutting device of a roadheader of this embodiment includes a shaft 1, a cutting member provided with a tunnel 3 extending toward the shaft 1, a threaded fastener 4 connected to the shaft 1 through the tunnel 3, and a A fixing sleeve 5 in the hole 3 and sleeved between the threaded fastener 4 and the cutting member 2 and a positioning portion for restricting the rotation of the fixing sleeve 5 in the hole 3. In this embodiment, the threaded fastener 4 is connected to the end surface of the shaft 1. The above-mentioned holes 3 coincide with the extending direction of the shaft 1.
固定套5相对于螺纹紧固件4固定,定位部限制固定套5在孔道3中转动,从限制了螺纹紧固件4的转动,解决了相关技术中存在的螺纹容易松动的问题。The fixing sleeve 5 is fixed relative to the threaded fastener 4, and the positioning portion restricts the rotation of the fixing sleeve 5 in the channel 3, thereby restricting the rotation of the threaded fastener 4, and solving the problem of easy loosening of threads in the related art.
掘进机切割装置还包括用于将固定套5限制在孔道3内的限位部件10和设置在限位部件10的背对固定套5的一侧的弹性挡圈。The boring machine cutting device further includes a limiting member 10 for limiting the fixing sleeve 5 in the tunnel 3 and an elastic retaining ring provided on a side of the limiting member 10 facing away from the fixing sleeve 5.
螺纹紧固件4包括螺杆4b和设在螺杆4b的一端的螺帽4a。孔道3包括邻近轴1的第一孔道和与第一孔道相连的第二孔道。第一孔道的内径小于第二孔道的内径。螺杆4b穿过第一孔道与轴1连接。螺帽4a位于第二孔道中。固定套5设置在第二孔道中,并套设在螺帽4a和切割部件2之间。The threaded fastener 4 includes a screw 4b and a nut 4a provided at one end of the screw 4b. The tunnel 3 includes a first tunnel adjacent to the shaft 1 and a second tunnel connected to the first tunnel. The inner diameter of the first tunnel is smaller than the inner diameter of the second tunnel. The screw 4b is connected to the shaft 1 through the first hole. The nut 4a is located in the second hole. The fixing sleeve 5 is disposed in the second hole and is sleeved between the nut 4 a and the cutting member 2.
固定套5的内腔的形状与螺帽4a的形状相适配,固定套5套设在螺帽4a上,以使固定套5与螺帽4a固定。可选地,螺帽4a的横截面形状和固定套5的内腔的横截面的形状均为多边形,以使固定套5和螺帽4a相对固定。当然,固定套5和螺帽4a的形状可以为非圆形的其它形状。The shape of the inner cavity of the fixing sleeve 5 is adapted to the shape of the nut 4a. The fixing sleeve 5 is sleeved on the nut 4a to fix the fixing sleeve 5 and the nut 4a. Optionally, the cross-sectional shape of the nut 4a and the cross-sectional shape of the inner cavity of the fixing sleeve 5 are both polygons, so that the fixing sleeve 5 and the nut 4a are relatively fixed. Of course, the shapes of the fixing sleeve 5 and the nut 4a may be other shapes that are not circular.
参见图6、9和10所示,固定套5上设置有沿螺纹紧固件4的周向布置的多个定位齿6,切割部件2上设有用于限制定位齿6绕螺纹紧固件4的周向转动的定位部件7。定位部件7的形状与相邻两个定位齿6之间的凹槽的相适配,位于相邻两个定位齿6之间的定位部件7限制定位齿6绕螺纹紧固件4转动,从而可以限制螺纹紧固件4在孔道3内转动,起到防止螺纹紧固件4松动的作用。6, 9 and 10, the fixing sleeve 5 is provided with a plurality of positioning teeth 6 arranged along the circumferential direction of the threaded fastener 4, and the cutting member 2 is provided with a restriction member 6 for restricting the positioning teeth 6 around the threaded fastener 4 The circumferentially rotating positioning member 7. The shape of the positioning member 7 is matched with the groove between two adjacent positioning teeth 6. The positioning member 7 located between the two adjacent positioning teeth 6 restricts the positioning teeth 6 from rotating about the threaded fastener 4 so that It is possible to restrict the rotation of the threaded fastener 4 in the channel 3, and to prevent the threaded fastener 4 from loosening.
当然还可以为:固定齿6设在切割部件2上,定位部件7设在固定套5上。Of course, it can also be: the fixed teeth 6 are provided on the cutting member 2, and the positioning members 7 are provided on the fixed sleeve 5.
定位部件7可沿螺纹紧固件4的径向移动,以在限制定位齿6转动的第一位置和允许定位齿6转动的第二位置之间切换。在需要将螺纹紧固件4拆卸下来时,可将定位部件7朝远离定位齿6的方向移动至允许固定套5转动的位置,然后可将螺纹坚固件7从切割部件2和轴1上拆卸下来,以便于将切割部件2和轴1分离。The positioning member 7 is movable in the radial direction of the threaded fastener 4 to switch between a first position restricting the rotation of the positioning teeth 6 and a second position permitting the rotation of the positioning teeth 6. When the threaded fastener 4 needs to be removed, the positioning member 7 can be moved away from the positioning teeth 6 to a position allowing the fixing sleeve 5 to rotate, and then the threaded solid member 7 can be removed from the cutting member 2 and the shaft 1 Come down to separate the cutting part 2 and the shaft 1.
掘进机切割装置还包括用于将定位部件7朝第一位置推压的弹性部件8。The boring machine cutting device further includes an elastic member 8 for pressing the positioning member 7 toward the first position.
参见图7和图8,切割部件2上设置有与孔道3相同的容纳腔11,容纳腔11由切割部件2的外侧延伸至孔道3,以便于将定位部件7由切割部件2的外侧装入容纳腔11中。Referring to FIGS. 7 and 8, the cutting member 2 is provided with a receiving cavity 11 that is the same as the channel 3. The receiving cavity 11 extends from the outside of the cutting member 2 to the channel 3 so that the positioning member 7 is loaded from the outside of the cutting member 2. Accommodating cavity 11.
容纳腔11的至少靠近孔道3的一段的横截面沿靠近孔道3的方向渐缩,以限制定位部件7朝孔道3内移动的距离。A cross section of at least a section of the receiving cavity 11 near the tunnel 3 is tapered in a direction close to the tunnel 3 to limit a distance that the positioning member 7 moves toward the tunnel 3.
定位部件11可移动地设置在容纳腔11内,定位部件11可伸出容纳腔11并与定位齿6咬合,以限制定位齿6转动。定位部件11可缩回容纳腔11中,以允许固定套5和螺纹紧固部件4在孔道3内转动。定位部件7与定位齿6咬合的位置为上述的第一位置,定位部件7缩回容纳腔11的位置为上述的第二位置。The positioning member 11 is movably disposed in the receiving cavity 11. The positioning member 11 can extend out of the receiving cavity 11 and mesh with the positioning teeth 6 to restrict the positioning teeth 6 from rotating. The positioning member 11 can be retracted into the accommodating cavity 11 to allow the fixing sleeve 5 and the threaded fastening member 4 to rotate within the channel 3. The position where the positioning member 7 engages with the positioning tooth 6 is the aforementioned first position, and the position where the positioning member 7 is retracted into the receiving cavity 11 is the aforementioned second position.
本实施例中,定位部仅可限制固定套5沿第一方向转动,固定套5可在孔道3内沿与第一方向相反的第二方向转动。第一方向为螺纹紧固件4拧松的方向,第二方向为螺纹紧固件4拧紧的方向。In this embodiment, the positioning portion can only restrict the fixing sleeve 5 from rotating in the first direction, and the fixing sleeve 5 can be rotated within the channel 3 in the second direction opposite to the first direction. The first direction is the direction in which the threaded fastener 4 is loosened, and the second direction is the direction in which the threaded fastener 4 is tightened.
参见图6所示,定位齿6包括用于抵靠定位部件7的第一侧面6a,第一侧面6a抵靠定位部件7以限制固定套5和螺纹紧固件4沿第一方向转动。Referring to FIG. 6, the positioning teeth 6 include a first side surface 6 a for abutting the positioning member 7, and the first side surface 6 a abuts the positioning member 7 to restrict the fixing sleeve 5 and the threaded fastener 4 from rotating in the first direction.
定位齿6还包括背对第一侧面6a的第二侧面6b。第二侧面6b用于在固定套5沿第二 方向转动时克服弹性部件8的弹性力将定位部件7朝第二位置推压。The positioning tooth 6 further includes a second side surface 6b facing away from the first side surface 6a. The second side surface 6b is used to push the positioning member 7 toward the second position against the elastic force of the elastic member 8 when the fixing sleeve 5 rotates in the second direction.
第一侧面6a沿远离螺纹紧固件4的方向朝第一方向的下游倾斜;第二侧面6b沿远离螺纹紧固件4的方向朝第一方向的下游倾斜。The first side surface 6 a is inclined downstream in the first direction in a direction away from the threaded fastener 4; the second side surface 6 b is inclined downstream in the first direction in a direction far from the threaded fastener 4.
可选地,螺帽4a的端面上设置有用于与转动螺纹紧固件4的工具相配合的连接结构。可选地,连接结构包括设在螺帽4a的端面上的多边形孔。Optionally, a connecting structure for cooperating with a tool for turning the threaded fastener 4 is provided on an end surface of the nut 4a. Optionally, the connection structure includes a polygonal hole provided on an end surface of the nut 4a.
使用上述的工具沿第一方向转动螺纹紧固件4时,定位部件7与定位齿的第一侧面6a抵靠,固定套5和螺纹紧固件4均不能够被转动。When the threaded fastener 4 is rotated in the first direction using the aforementioned tool, the positioning member 7 abuts against the first side surface 6a of the positioning tooth, and neither the fixing sleeve 5 nor the threaded fastener 4 can be rotated.
使用上述的工具沿第二方向转动螺纹紧固件4时,固定套5随螺禁锢件4沿第二方向转动,定位齿6的第二侧面6b将定位部件7朝第二位置推压,因此螺纹紧固件4可沿第二方向转动。When the above-mentioned tool is used to rotate the threaded fastener 4 in the second direction, the fixing sleeve 5 rotates in the second direction with the screw restraint 4, and the second side 6 b of the positioning tooth 6 pushes the positioning member 7 toward the second position. The threaded fastener 4 is rotatable in a second direction.
在本实施例中,定位部件7为至少两个,相邻两个定位齿6之间的间距为L1,相邻两个定位部件7之间的距离为L2,L1≠n L2,且L2≠n L1,其中,n为自然数,因此,相邻的两个定位部件7中,第一个定位部件7与定位齿6咬合相对于第二定位部件7与定位齿咬合转动的距离可以小于相邻两个定位齿6之间的间距,使得螺纹紧固件4相邻两个定位位置之间的间距更小。In this embodiment, there are at least two positioning members 7, the distance between two adjacent positioning teeth 6 is L1, and the distance between two adjacent positioning members 7 is L2, L1 ≠ n L2, and L2 ≠ n L1, where n is a natural number, and therefore, the distance between the first positioning member 7 and the positioning tooth 6 in the two adjacent positioning members 7 may be smaller than the distance between the second positioning member 7 and the positioning tooth. The distance between the two positioning teeth 6 makes the distance between two adjacent positioning positions of the threaded fastener 4 smaller.
定位部件7的个数为N,L 2>L 1,L 1/L 2-L 1≤N。定位部件7和定位齿6之间的配合关系形成类似于游标卡尺的结构,从而使得螺纹紧固件4的相邻两个定位位置之间的间距更小。 The number of the positioning members 7 is N, L 2 > L 1 , and L 1 / L 2 -L 1 ≦ N. The fitting relationship between the positioning member 7 and the positioning teeth 6 forms a structure similar to a vernier caliper, so that the distance between two adjacent positioning positions of the threaded fastener 4 is smaller.
根据本申请的另一方面,本实施例还提供了一种掘进机,该掘进机包括上述的掘进机切割装置。According to another aspect of the present application, this embodiment further provides a roadheader, which includes the above-mentioned roadheader cutting device.
以上仅为本发明的示例性实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。The above are only exemplary embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention Inside.

Claims (10)

  1. 一种掘进机切割装置,其特征在于,包括:A cutting device for a roadheader, comprising:
    轴(1);Axis (1);
    切割部件(2),设有朝所述轴(1)延伸的孔道(3);The cutting member (2) is provided with a channel (3) extending toward the shaft (1);
    螺纹紧固件(4),穿过所述孔道(3)与所述轴(1)连接,以将所述切割部件(2)和所述轴(1)连接在一起;A threaded fastener (4) connected to the shaft (1) through the hole (3) to connect the cutting member (2) and the shaft (1) together;
    固定套(5),设在所述孔道(3)内,并套设在所述螺纹紧固件(4)和所述切割部件(2)之间,所述固定套(2)与所述螺纹紧固件(4)相对固定;A fixing sleeve (5) is provided in the channel (3) and is sleeved between the threaded fastener (4) and the cutting member (2), and the fixing sleeve (2) and the The threaded fastener (4) is relatively fixed;
    定位部,用于限制所述固定套(5)在所述孔道(3)内转动,所述定位部包括沿所述螺纹紧固件(4)的周向布置的多个定位齿(6)和与用于限制所述定位齿(6)绕所述螺纹紧固件(4)的周向转动的定位部件(7),所述定位齿(6)和所述定位部件(7)中的一个设在所述固定套(5)上,另一个设在所述切割部件(2)上。A positioning portion for restricting the fixing sleeve (5) from rotating in the channel (3), the positioning portion including a plurality of positioning teeth (6) arranged along a circumferential direction of the threaded fastener (4) And a positioning member (7) for restricting rotation of the positioning tooth (6) about the circumferential direction of the threaded fastener (4), the positioning tooth (6) and the positioning member (7) One is provided on the fixed sleeve (5), and the other is provided on the cutting member (2).
  2. 根据权利要求1所述的掘进机切割装置,其特征在于,所述定位部件(7)可相对于所述定位齿(6)移动,以在限制所述定位齿(6)转动的第一位置和允许所述定位齿(6)转动的第二位置之间切换。The cutting device for a roadheader according to claim 1, wherein the positioning member (7) is movable relative to the positioning tooth (6), so as to restrict the rotation of the positioning tooth (6) in a first position And a second position that allows the positioning teeth (6) to rotate.
  3. 根据权利要求2所述的掘进机切割装置,其特征在于,还包括用于将所述定位部件(7)朝所述第一位置推压的弹性部件(8)。The boring machine cutting device according to claim 2, further comprising an elastic member (8) for pressing the positioning member (7) toward the first position.
  4. 根据权利要求2所述的掘进机切割装置,其特征在于,所述定位齿(6)包括:The cutting device for a roadheader according to claim 2, wherein the positioning teeth (6) include:
    第一侧面(6a),用于抵靠所述定位部件(7),以限制所述固定套(5)沿第一方向转动;以及A first side (6a) for abutting against the positioning member (7) to restrict the fixing sleeve (5) from rotating in a first direction; and
    第二侧面(6b),背对所述第一侧面(6a),用于在所述固定套(5)沿第二方向转动时将所述定位部件(7)朝所述第二位置推压,所述第二方向与所述第一方向相反。A second side (6b), facing away from the first side (6a), for pushing the positioning member (7) toward the second position when the fixing sleeve (5) rotates in a second direction , The second direction is opposite to the first direction.
  5. 根据权利要求4所述的掘进机切割装置,其特征在于,The boring machine cutting device according to claim 4, wherein:
    所述第一侧面(6a)沿远离所述螺纹紧固件(4)的方向朝所述第一方向的下游倾斜;The first side surface (6a) is inclined downstream in the first direction in a direction away from the threaded fastener (4);
    所述第二侧面(6b)沿远离所述螺纹紧固件(4)的方向朝所述第一方向的下游倾斜。The second side surface (6b) is inclined downstream in the first direction in a direction away from the threaded fastener (4).
  6. 根据权利要求1所述的掘进机切割装置,其特征在于,所述定位部件(7)的形状与相邻两个所述定位齿(6)之间的凹槽的形状相适配。The cutting device for a roadheader according to claim 1, wherein the shape of the positioning member (7) matches the shape of a groove between two adjacent positioning teeth (6).
  7. 根据权利要求1所述的掘进机切割装置,其特征在于,所述定位部件(7)为至少两个,相邻两个所述定位齿(6)之间的间距为L 1,相邻两个所述定位部件(7)之间的距离为L 2,L 1≠n L 2,且L 2≠n L 1,其中,n为自然数。 The boring machine as claimed in claim 1, said cutting means, characterized in that the positioning member (7) is at least two, the spacing between the two positioning teeth (6) adjacent to L 1, two adjacent The distance between the positioning members (7) is L 2 , L 1 ≠ n L 2 , and L 2 ≠ n L 1 , where n is a natural number.
  8. 根据权利要求7所述的掘进机切割装置,其特征在于,所述定位部件(7)的个数为N,L 2>L 1,L 1/(L 2-L 1)≤N。 The cutting device for a roadheader according to claim 7, wherein the number of the positioning members (7) is N, L 2 > L 1 , and L 1 / (L 2 -L 1 ) ≤N.
  9. 根据权利要求1所述的掘进机切割装置,其特征在于,还包括用于将所述固定套(5)限制在孔道内的限位部件(10)。The cutting device for a roadheader according to claim 1, further comprising a limiting member (10) for limiting the fixing sleeve (5) in the tunnel.
  10. 一种掘进机,其特征在于,包括权利要求1至9中任一项所述的掘进机切割装置。A boring machine, comprising the boring machine cutting device according to any one of claims 1 to 9.
PCT/CN2019/097689 2018-08-08 2019-07-25 Cutting apparatus of tunneling machine, and tunneling machine WO2020029803A1 (en)

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