WO2023185336A1 - Procédé de fixation de dent d'excavation et système de fixation - Google Patents

Procédé de fixation de dent d'excavation et système de fixation Download PDF

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Publication number
WO2023185336A1
WO2023185336A1 PCT/CN2023/078049 CN2023078049W WO2023185336A1 WO 2023185336 A1 WO2023185336 A1 WO 2023185336A1 CN 2023078049 W CN2023078049 W CN 2023078049W WO 2023185336 A1 WO2023185336 A1 WO 2023185336A1
Authority
WO
WIPO (PCT)
Prior art keywords
lock
pin
hole
lock pin
lock body
Prior art date
Application number
PCT/CN2023/078049
Other languages
English (en)
Chinese (zh)
Inventor
任美康
李辉
Original Assignee
宁波禾顺新材料有限公司
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 宁波禾顺新材料有限公司 filed Critical 宁波禾顺新材料有限公司
Publication of WO2023185336A1 publication Critical patent/WO2023185336A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E02F9/2841—Retaining means, e.g. pins resilient
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape

Definitions

  • the preferred technical solution adopted by the present invention to solve the above technical problems is: the outer periphery of at least one end of the lock pin
  • the wall is provided with a latching protrusion
  • the lock pin through hole is provided with a notch that matches the latching protrusion.
  • the notch has a starting position and an ending position to achieve the initial positioning in step three and define the lock.
  • the rotation range of the pin is: the outer periphery of at least one end of the lock pin.
  • At least one end surface of the lock pin is provided with a polygonal groove that matches the tool.
  • an installation tool with a polygonal convexity is inserted into the polygonal groove.
  • the groove pairs are screwed to apply the rotational force.
  • the lock body is provided with a radial through hole, and the lock head, the elastomer and the fixing screw are sequentially installed into the radial through hole to form the elastic lock head.
  • a fixing system for excavation teeth including a tooth seat, a bucket tooth and a lock pin assembly
  • the lock pin assembly includes a lock body and a lock pin with a non-circular outer contour; the lock body is inserted into the lock body receiving hole and cannot rotate;
  • the preferred technical solution adopted by the present invention to solve the above technical problem is: the thickness of one side of the lock body is increased to form a boss portion so that the cross section of the lock body is eccentric, and the radial through hole is provided on the lock body. On the boss part.
  • a locking protrusion is provided on the outer peripheral wall of at least one end of the lock pin
  • the advantage of the present invention is that the lock body is non-rotatably fitted to the nose through the lock body receiving hole.
  • This assembly method replaces welding, fastener connection and other assembly methods.
  • the assembly is simple and convenient and can be replaced according to needs.
  • the wrapped connection method between the two allows the lock body accommodating hole to provide annular support for the lock body, making the connection strength more reliable and stable, and will not separate or fall off;
  • lock pin assembly is independent and does not need to be pre-fixed to the bucket teeth, nor does it need to be slotted on the bucket teeth for matching. It does not affect the strength of the bucket teeth and can resist vibration and impact during the excavation of the teeth;
  • Figure 1 is an exploded view of an excavation tooth lock pin fixing system according to a preferred embodiment of the present invention
  • Figure 3 is a three-dimensional schematic view of the gear seat according to a preferred embodiment of the present invention.
  • Figure 6 is a three-dimensional schematic view of the lock pin according to a preferred embodiment of the present invention.
  • Figure 7 is a schematic diagram of the assembly steps of the excavation tooth lock pin fixing system according to a preferred embodiment of the present invention.
  • Figure 9 is a schematic diagram of the assembly steps three of the excavation tooth lock pin fixing system according to a preferred embodiment of the present invention.
  • Figure 11 is a schematic diagram of the assembly steps of the excavation tooth lock pin fixing system according to a preferred embodiment of the present invention.
  • Figure 14 is a diagram of the mating state of the lock pin and the lock body in Figure 12 according to a preferred embodiment of the present invention.
  • Figure 15 is a three-dimensional schematic view of the lock head according to a preferred embodiment of the present invention.
  • Figure 16 is a schematic diagram of the overall assembly of the elastic lock head according to a preferred embodiment of the present invention.
  • Figure 17 is an overall schematic diagram of the lock pin assembly according to a preferred embodiment of the present invention.
  • Figure 18 is a schematic cross-sectional view of the lock body according to a preferred embodiment of the present invention.
  • Excavation equipment is commonly used equipment in the engineering and mining industries, and the bucket is an important component of the excavation equipment.
  • the bucket tooth 200 includes a solid tooth tip L1 located at the front and a connecting body L2 located at the rear with an inner cavity s that opens axially toward the rear.
  • the nose portion 101 extends into the inner cavity from the opening and is held by the lock pin assembly 300, so that the bucket teeth 200 and the teeth
  • the seat 100 is integrated into one body through the lock pin assembly 300 .
  • the nose 101 is provided with a non-circular lock body accommodating hole a that is open on the outer surface of the nose 101.
  • the so-called non-circular lock body accommodating hole a refers to the lock body accommodating hole a. At least part of the cross-section of hole a is non-circular.
  • the lock body receiving hole a runs through the left and right side walls of the nose 101 , and the central axis of the lock body receiving hole a is perpendicular to the central axis of the nose 101 .
  • the two side walls of the bucket tooth 200 and the two cavity walls of the inner cavity are provided with a pair of locking pin through holes c communicating with the inner cavity.
  • the lock body 301 passes through the pin hole b of the lock pin 302 along its central axis.
  • the lock pin 302 is inserted into the lock body 301 and can be limited in rotation within the lock body 301 . Both ends of the lock pin 302 can extend from both end surfaces of the lock body 301, that is, the length of the lock pin 302 is longer than the lock body 301. At this point, the middle section of the lock pin 302 is wrapped by the lock body 301, and each of the two sections of the lock pin 302 is exposed to form the pin end 1.
  • the length of the lock body 301 is adapted to the nose 101.
  • the lock body 301 is inserted into the lock body receiving hole a, even if the lock body 301 is exposed on the side wall of the nose 101, its outermost end will not beyond the outermost end of the cross section in the same width direction of the nose 101 . This ensures that the nose portion 101 is inserted into the inner cavity of the connecting body of the bucket tooth 200 in place.
  • the length of the locking pin 302 is greater than the width of the inner cavity of the connecting body of the bucket tooth 200 at the corresponding position, that is, the pin ends 1 at both ends of the locking pin 302 can rest on the locking pin through holes of the connecting body. c on the hole wall to ensure that the locking pin assembly 300 can connect the nose 101 and the bucket tooth 200.
  • the inner wall of the pin hole b is provided with an elastic lock head 2 protruding from the inner wall.
  • the elastic lock head 2 can change the distance it protrudes from the inner wall due to force.
  • a recessed locking position 3 is provided at the circumferential side of the end of the slideway, and the recessed locking position 3 is connected with the recessed slideway 4 .
  • the method for fixing the bucket tooth 200 to the lock pin 302 on the gear seat 100 includes the following steps:
  • Step 1 as shown in Figures 7-8, the lock body 301 is installed into the lock body receiving hole a of the nose 101 of the tooth holder 100, so that the lock body 301 is installed on the tooth holder 100 non-rotatably.
  • Step 2 as shown in Figure 9-10, move the bucket tooth 200 so that the mouth of the inner cavity of the bucket tooth 200 faces backward. Insert the nose 101 of the tooth holder 100 into the inner cavity of the bucket tooth 200. The lock of the bucket tooth 200 The pin through hole c is aligned with the pin hole b of the lock body 301, that is, the opening of the pin hole b is completely visible from the opening of the lock pin through hole c.
  • Step 3 as shown in Figure 10, the lock pin 302 is inserted into the lock pin through hole c on one side of the bucket tooth 200, and is reasonably positioned to ensure that the recessed slideway 4 of the lock pin 302 is at the corresponding position of the elastic lock head 2.
  • Step 4 as shown in Figures 11 and 13, apply an inward force to the lock pin 302 so that it penetrates into the bucket tooth 200 from the lock pin through hole c on the side of the bucket tooth 200 through the pin hole b of the lock body 301.
  • the lock pin through hole c on the other side.
  • the elastic lock head 2 enters the concave slide 4 from the slide opening of the concave slide 4 at the insertion end of the lock pin 302, and slides on the concave slide 4, thereby achieving avoidance and ensuring that the lock pin 302 is in the lock body 301. of movement.
  • the elastic lock head 2 in the lock body 301 moves along the recessed slideway 4 of the lock pin 302 to the end of the recessed slideway 4, and the pin end 1 of the lock pin 302 rests on the lock pin through hole c. on the hole wall. That is, the lock pin 302 bridges the two side walls of the connecting body of the bucket tooth 200 .
  • Step 5 As shown in Figures 12 and 14, a rotational force is applied to the lock pin 302, so that the lock pin 302 rotates at a certain angle relative to the lock body 301, and the rotation direction is opposite to the direction of the recessed lock position 3, that is, like a recessed lock.
  • Position 3 is located on the clockwise side of the recessed slide 4, then the lock pin 302 rotates counterclockwise at this time, and vice versa.
  • the elastic lock head 2 is displaced into the recessed locking position 3, and the lock pin 302 is radially tightened at the recessed locking position 3.
  • the axial sides of the elastic locking head 2 are blocked by the two axial inner walls of the recessed locking position 3. restriction, thereby fixing the positions of the lock pin 302 and the lock body 301.
  • the lock body 301 is non-rotatably fitted into the nose 101 through the lock body receiving hole a.
  • This assembly method replaces assembly methods such as welding and fastener connection. First of all, the assembly is simple, convenient and can be used. Replace according to needs, and secondly, the wrapped connection between the two, the lock body accommodating hole a provides annular support for the lock body 301, making the connection strength reliable and stable, and will not separate or fall off.
  • the lock pin 302 is annularly supported by the pin hole b of the lock body 301, making the connection between them closer. It can be seen that in this embodiment, the bucket tooth 200 is connected to the nose 101 through the inner cavity, the nose 101 is connected to the lock body 301 through the lock body receiving hole a, the lock body 301 is connected to the lock pin 302 through the pin hole b, and the lock pin 302 The pin end 1 is inserted into the lock pin through hole c of the bucket tooth 200, and they are interlocked with each other.
  • the reason why the elastic lock head 2 is used in this embodiment is because the elastic lock head 2 can elastically deform and thereby When it is displaced into the recessed lock position 3, the elastic lock head 2 tightens the lock body 301 and the lock pin 302, thus increasing the friction between the two and eliminating the radial gap. Not only does it prevent the lock pin 302 from moving axially, but it also prevents the lock pin 302 from slipping due to force during the excavation operation, causing the elastic lock head 2 to break away from the recessed locking position 3, thereby ensuring that the bucket tooth 200 is connected to the gear seat 100.
  • the stability of the lock pin 302 fixed structure can further resist vibration and impact during the excavation tooth operation.
  • the nose 101 is in the shape of a flat mouth and includes a first fitting section S1 and a second fitting section S2 along the axis.
  • the cross section of the second fitting section S2 gradually increases from front to back.
  • the first matching section S1 includes a first plane 11 on the upper side, a second plane on the lower side, and an outer convex curved surface 13 between the first plane 11 and the second plane.
  • the second matching section S2 includes a third flat surface 14 on the upper side, a fourth flat surface on the lower side, concave arc surfaces 16 on both sides, and arc-shaped transition surfaces between the surfaces.
  • the first plane 11 and the second plane are substantially parallel to the central axis of the nose 101, and the third plane 14 and the fourth plane are symmetrical along the central axis of the nose 101 and inclined outward from front to back to align with the corresponding first plane. Plane 11 or the second plane forms an obtuse angle.
  • the inner cavity of the tooth 200 has an inner surface complementary to the outer surface of the nose 101 .
  • the inner cavity of the bucket tooth 200 has a mating surface that fits the first, second, third, and fourth planes, the outer convex arc surface, and the arc-shaped transition surface, but the side wall of the inner cavity and the inner concave arc surface of the second mating section S2 There may be a certain gap therebetween to accommodate the protruding portion of the lock body on the side of the nose 101 .
  • the concave arc surface 16 not only provides an assembly space for the lock body, but is also more conducive to the fitting of the bucket teeth 200 and the nose 101, enhancing the tightness of the fit between the two and reducing their freedom of movement.
  • the force on the front section of the bucket tooth 200 is greater than that on the rear end, that is, the force is basically concentrated on the first matching section S1 of the nose 101 .
  • the force on the mating surfaces corresponding to the two surfaces is perpendicular to the direction of the central axis and does not produce a component force along the direction of the central axis.
  • the component forces along the central axis direction generated by the third and fourth planes will remain at a small level, and the shear force transmitted to the lock pin assembly 300 by this small component force will also be relatively small, and the lock pin assembly 300 will be The possibility of shear damage or severe wear under the action of shear force is greatly reduced, thereby ensuring the stability and use safety of the connection between the gear seat 100 and the bucket tooth 200 .
  • the front end of the base 102 has two longitudinal arc surfaces 5 located on both sides of the second matching section S2.
  • the rear end surface of the bucket tooth 200 is in the same shape as the longitudinal arc surfaces 5.
  • arranging the lock pin assembly 300 in a direction perpendicular to the central axis of the excavation teeth is also to avoid generating component forces along the central axis of the excavation teeth, and further improves the shear force of the lock pin assembly 300 resistance ability.
  • the elastic lock head 2 includes an elastic body 21 and a lock head 22.
  • the lock body 301 is provided with a radial through hole f
  • the elastic body 21 is located in the radial through hole f
  • the lock head 22 is in contact with
  • the elastic body 21 is provided on the side close to the pin hole b.
  • the elastic body 21 can be driven to deform, and the elastic body 21 can restore the deformation to drive the lock head 22 to move toward the inner wall of the pin hole b.
  • the reason why the radial through hole f is provided to install the elastic lock head 2 is that it is more convenient to install from the outside inward and the production cost is lower.
  • the outer section of the radial through hole f away from the pin hole b is provided with a plug, and the plug restricts the elastic body 21 and the lock head 22 within the radial through hole f.
  • the outer section of the radial through hole f away from the pin hole b is provided with internal threads, and the fixing screw 23 is screwed into the radial through hole f from the outside of the lock body 301 through the internal threads to form a plug.
  • the outer end surface of the fixing screw 23 does not exceed the outer surface of the lock body 301.
  • the elastic body 21 is an elastic rubber block, and the lock head 22 is made of wear-resistant rigid metal material.
  • the arrangement of the elastic body 21 can adjust the height of the lock head 22 protruding from the inner wall of the pin hole b. This not only achieves the effect of clamping the lock pin 302 and the lock body 301, but also reduces the processing accuracy and assembly of the lock head 22. Accuracy, achieving adaptive matching of the elastic lock head 2.
  • a locking protrusion 7 is provided on the outer peripheral wall of at least one end of the lock pin 302 .
  • the corresponding lock pin through hole c is provided with a notch 8 that matches the locking protrusion 7 .
  • the notch 8 is an arc-shaped groove, and the locking protrusion 7 can move along the arc-shaped groove.
  • the two side walls of the locking protrusion 7 form two action surfaces, and the two inner end walls of the arc-shaped groove form two positioning surfaces, and the two positioning surfaces form the starting position y1 and the ending position y2.
  • the cooperation between the lock pin 302 and the lock body 301 relies on the locking protrusion 7 on the lock pin and the notch 8 on the bucket tooth, but the premise is At this time, the position of the elastic lock head 2 of the lock body 301 is determined, so that means the lock body needs to be positioned before the lock pin is positioned.
  • the cross section of the lock body receiving hole a is eccentric, as shown in Figures 5 and 18.
  • the lock body 301 includes a cylindrical main body j provided with a pin hole b. The thickness of one side of the main body is increased to form a convex The arrangement of the platform part g and the boss part makes the cross section of the lock body 301 non-circular. In this way, when the lock body is inserted into the lock body receiving hole, positioning can be performed intuitively and conveniently.
  • the radial through hole f is provided on the boss portion g, and the outside of the boss portion has a plane, and the radial through hole f penetrates into the lock body 301 from the plane.
  • At least one end surface of the lock pin 302 is provided with a polygonal groove 9 that matches the tool.
  • An installation tool with a polygonal protrusion is inserted into the polygonal groove 9 to lock the lock pin 302 clockwise or counterclockwise.
  • the installation and disassembly of the lock pin assembly 300 can be realized by turning.
  • the polygonal groove 9 is provided at the same end where the locking protrusion 7 is located.
  • a blocking protrusion u extending along the axial direction of the lock pin 302 is provided between the recessed locking position 3 and the recessed slideway 4, so that the recessed locking position 3 and the recessed slideway 4 are clearly separated to avoid The recessed locking position 3 and the recessed slide 4 are switched uncontrollably. This prevents the lock pin 302 from rotating and sliding due to large vibrations during use.
  • the interface diameter between the recessed lock position 3 and the recessed slideway 4 is smaller than the width of the recessed slideway 4 , and even more preferably, the groove width of the recessed locking position 3 is smaller than the diameter of the elastic lock head 2 . In this way, the elastic lock head 2 can switch between the recessed locking position 3 and the recessed slide 4 only under the action of a larger torque.
  • the front end of the tooth tip L1 of the bucket tooth 200 has a first action surface p located on the upper surface and inclined from front to back and from bottom to top, and a second action surface p located on the lower surface.
  • the second action surface and The first action surface p is symmetrical along the central axis of the bucket tooth 200 .
  • the setting of the inclined action surface improves the cutting ability of the bucket teeth.
  • the upper surface of the bucket tooth 200 is provided with a hand-held portion h.
  • the hand-held portion h is provided to facilitate the operator to move the bucket tooth 200 during the process of assembling and disassembling the bucket tooth 200 .

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

L'invention concerne un procédé de fixation et un système de fixation de dent d'excavation. Les étapes de fixation comprennent au moins : le montage d'un corps de verrouillage (301) dans un trou de réception (A) du corps de verrouillage, de telle sorte que le corps de verrouillage (301) est monté de manière non rotative sur un support de dent (100) ; le déplacement d'une dent de godet (200), et l'insertion d'une partie nez (101) du support de dent (100) dans la cavité interne de la dent de godet (200) ; l'insertion d'une broche de verrouillage (302) dans un trou traversant de la broche de verrouillage (c) sur un côté de la dent de godet (200) et la réalisation d'un positionnement initial, de façon à garantir qu'une glissière évidée (4) est située à une position correspondant à une tête de verrouillage élastique (2) ; l'introduction de la broche de verrouillage (302) dans un trou de broche (b) et vers le trou traversant de la broche de verrouillage (c) sur l'autre côté, le déplacement de la tête de verrouillage élastique (2) vers la position à côté d'une position de verrouillage évidée (3) le long de la glissière évidée (4), la section centrale de la broche de verrouillage (302) étant entourée par le corps de verrouillage (301), et le positionnement des extrémités de la broche (1) aux deux extrémités de la broche de verrouillage (302) dans le trou traversant de broche de verrouillage (c) ; et l'application d'une force de rotation à la broche de verrouillage (302) de telle sorte que la broche de verrouillage (302) tourne à un certain angle par rapport au corps de verrouillage (301), l'ajustement de la tête de verrouillage élastique (2) dans la position de verrouillage évidée (3) à partir de la glissière évidée (4), la broche de verrouillage (302) et le corps de verrouillage (301) étant limités, puis la fixation de la dent de godet (200) et du support de dent (100). Le montage est simple et pratique, la résistance de liaison est plus fiable et stable, et la vibration et l'impact pendant un processus de fonctionnement de dent d'excavation peuvent être résistants.
PCT/CN2023/078049 2022-04-02 2023-02-24 Procédé de fixation de dent d'excavation et système de fixation WO2023185336A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210351566.3 2022-04-02
CN202210351566.3A CN114607006A (zh) 2022-04-02 2022-04-02 挖掘齿固定方法及固定系统

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WO2023185336A1 true WO2023185336A1 (fr) 2023-10-05

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN118273415A (zh) * 2024-06-03 2024-07-02 宁波禾顺新材料有限公司 用于固定挖掘设备的齿尖的稳定连接系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114607006A (zh) * 2022-04-02 2022-06-10 宁波禾顺新材料有限公司 挖掘齿固定方法及固定系统
CN117569407B (zh) * 2024-01-17 2024-03-15 宁波禾顺新材料有限公司 用于固定挖掘设备的磨损部件的稳固连接系统及装配方法
CN117646472B (zh) * 2024-01-29 2024-04-23 宁波禾顺新材料有限公司 一种单耳结构的斗齿固定系统和固定方法

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CN110847276A (zh) * 2019-10-30 2020-02-28 宁波禾顺新材料有限公司 一种连接限位结构及用于挖掘设备的耐磨组件
CN113756392A (zh) * 2021-10-08 2021-12-07 太原重工股份有限公司 挖掘设备组合斗齿的自锁联接装置
CN114607006A (zh) * 2022-04-02 2022-06-10 宁波禾顺新材料有限公司 挖掘齿固定方法及固定系统
CN217267764U (zh) * 2022-04-11 2022-08-23 宁波禾顺新材料有限公司 插拔方便的锁销组件及挖掘齿连接系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5937550A (en) * 1995-12-11 1999-08-17 Esco Corporation Extensible lock
US6108950A (en) * 1999-03-08 2000-08-29 Gh Hensley Industries, Inc. Self-adjusting tooth/adapter connection system for material displacement apparatus
US20120055052A1 (en) * 2010-09-08 2012-03-08 Hensley Industries, Inc. Connector Pin Assembly with Dual Function Outer End Portions, and Associated Ground Engaging Apparatus
CN108138472A (zh) * 2015-10-06 2018-06-08 汉斯莱产业股份有限公司 具有锁定销组件的挖掘齿组件
CN110847276A (zh) * 2019-10-30 2020-02-28 宁波禾顺新材料有限公司 一种连接限位结构及用于挖掘设备的耐磨组件
CN113756392A (zh) * 2021-10-08 2021-12-07 太原重工股份有限公司 挖掘设备组合斗齿的自锁联接装置
CN114607006A (zh) * 2022-04-02 2022-06-10 宁波禾顺新材料有限公司 挖掘齿固定方法及固定系统
CN217267764U (zh) * 2022-04-11 2022-08-23 宁波禾顺新材料有限公司 插拔方便的锁销组件及挖掘齿连接系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118273415A (zh) * 2024-06-03 2024-07-02 宁波禾顺新材料有限公司 用于固定挖掘设备的齿尖的稳定连接系统

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