Wearing and supporting members of excavating equipment and units thereof

FIELD: excavation equipment, particularly small metalwork for digging elements.

SUBSTANCE: unit for wearing and supporting members has replaceable tooth head and holding structure including intermediate holder with front part of front end arranged in pocket of rear end of tooth head and complementary thereto. Front part is secured in the pocket by the first glut pin structure. Holding structure also has main holder with front part of front end complementarily inserted in pocket of rear end of intermediate holder and secured in the pocket by the second glut pin structure. Rear end of main holder is operatively secured to cutting blade of excavator bucket. Each front part have oval configuration elongated in horizontal direction. Glut pin structures extend in horizontal direction. Front parts have reinforcing projections arranged in orifices adapted to secure front parts. Holder and tooth head are provided with mating ribbed areas.

EFFECT: reduced unit size, improved power and working characteristic, as well as wear-resistance characteristics.

40 cl, 7 dwg

 

The present invention mainly relates to excavating device and, in a preferred variant of its embodiment, in particular, offers the top of the tooth with a unique configuration and site holder preferably includes a top of a tooth that engages with the section of the holder with the interconnected primary and intermediate part.

Large buckets, dippers, etc. for excavation are usually supplied with sets of nodes excavation of teeth, each of which includes a relatively large section of the holder and the relatively small tooth tip, made with the possibility of replacement. Section of the holder has a main portion which is attached to the front of the lower cutting edge of the bucket, and pointed plot front, attached with the possibility of replacing the tooth tip with a pointed front part of the holder, is inserted into the inner part of the leg the top of the tooth, by attaching a pin or other connecting structure. The life of the peaks of relatively short-lived compared to the life section of the holder, and the section of the holder is usually with several interchangeable tops up until the huge ground forces and the wear and tear inflicted on a section of the holder, will not require replacement. Thus, the tooth tip can be described as wear items the HT design, and the section of the holder may be characterized as a basic element of design, bearing wear design element and protecting it from premature replacement.

Section of the holder may be integral with the holder or may be executed from the main holder that can be attached to the cutting edge of the bucket, and the intermediate holder located between the removable top of the tooth and the main holder, and United them with the possibility of separation. Intermediate holder includes a front section of the front part, which is held in engagement and with the possibility of separation within the zone pocket having a complementary configuration of the rear end of the tooth, with the first connecting structure, and the main holder includes a front section of the front part, which is held in engagement and with the possibility of separation inside having a complementary configuration area of the pocket in the rear end of the intermediate holder with the second connecting structure. Thus, the removable top of the tooth acts as a wear element of design, located on the intermediate holder and protecting it, and the intermediate holder is as a support structure for the top of the tooth, and wearing a design element of the main holder, on which the underlying is tsya intermediate holder.

Development configuration the front of the holder, its connection with the corresponding wear a design element (such as the top of a tooth or other holder), and its relationship with the connecting structure used for connection with the front end of the holder with the corresponding wear a design element, causes various difficulties for professionals in this field. For example, to maximize the opportunities incision into soil site-specific holder/tooth tip of the front cross-section of the site should be, to the extent possible, small. However, in conventional constructions nodes holder/tooth tip the decrease in the front area of such cross-sections, respectively weakens site. Other challenges in the design are preventing excessive operating voltage supplied to wear the item structure/connective device of the support element design, the shape of the front part, which allows to reduce the concentration of operating voltages applied to it, improving the sustainability of each wear element design to excessive movement relative to the associated support element design when carrying out earthworks, and optimization of protection is from wear as the result of erasing for each of the reference structural element with a corresponding wear a design element.

Both economic and operational reasons it would be desirable to get the site holder/tooth tip with improvements in one or more areas of design. For this purpose, in the first place, and the present invention is intended.

For the implementation of the present invention, in accordance with the preferred option of its embodiment, is provided by specially designed site wear of the structural element and support element construction equipment for excavation, which runs along the length axis of the node from the front to the back surface and, preferably, includes a removable top of the tooth, the intermediate holder and the main holder. The tooth tip is inserted and secured on the protruding forward section of the front part of the intermediate carrier and the intermediate holder is inserted and secured on the protruding forward section of the front portion of the main holder. The main holder contains a plot of the rear end that is attached with the possibility of separation of a section of the leading edge of the cutting edge of the bucket for excavation.

Section the front part of the intermediate holder protrudes forward from the front surface of the rear end of the main part of the holder, which respectively describes the rear end section of the front portion and has an elongated Hori is Tali, basically elliptical cross-section essentially along the entire length from the front to the rear surfaces of the upper and lower surface, and horizontally opposite left and right surfaces. Horizontally opposite reinforcing tabs are placed so that they acted out from the left and right surfaces of the section of the front part and the connecting hole passes horizontally through the area of the front and exits through the reinforcing tabs. Preferably, the reinforcing tabs are reinforcing protuberances rectangular shape, adjacent to the front end surface of the rear main section of the intermediate holder and pass only through a relatively small length from the front to the rear surface of the front part.

The front part of the intermediate holder complementary placed in the cavity of the rear end of the tooth tip, and horizontally opposite fixing holes pass through the opposite left and right side walls of the tooth tip in the inner side of the recess therein, in which the complementary posted by hardening bulge at the front of the intermediate holder. On the connecting holes of the top of the tooth outside superimposed and aligned opposite ends of the connecting holes of the front part temporarily the CSOs holder, and connective design, presents the front connecting pin passes through the connecting hole of the top of the tooth and holder and firmly holds the top of a tooth on the front part of the intermediate holder.

Preferably, the upper and lower surface of the front part of the intermediate holder is essentially parallel to the axis of the hub, passing from beginning to end, and the upper and lower surface of the front part are the front parts, which are inserted vertically to balance the upper and lower surfaces of the front.

The main holder has a rear main plot with the surface of the front end, which is the forward section of the front part, the front section of the main holder has the configuration similar to the configuration of the front part of the intermediate holder, and also contains protruding reinforcing bulge on its opposite left and right sides, and the connecting hole passes horizontally through the front portion of the main holder and opens out through the hardening bulge. The front part of the main cardholder and the corresponding hardening bulge complementary placed inside the cavity of the rear end of the rear main section of the intermediate holder. The connecting hole of the front cha is t the main holder is in line with the connecting holes of the left and right side walls, performed at the primary site of the intermediate holder and the connecting structure made in the form of the rear connecting pin passes through one line through the connecting hole and firmly holds the intermediate holder on the front part of the main holder.

Facing each other surfaces of the front and rear ends of the main section of the intermediate holder and the top of the tooth have a striped ribbed areas on their periphery, and ribbed periphery are complementary interaction, forming a locking configuration. Preferably, the upper and lower parts of the surface of the front end of the rear main section of the intermediate holder have a convex forward arcuate configuration, and the left and right side areas of the surface of the front end of the rear main section of the intermediate holder have a concave back arched configuration. Thus, the location of the front connecting pin may preferably be located closer to the rear end of the intermediate holder.

Similarly, facing each other of the front surface and the rear end of the main section of the base of the holder and the intermediate holder have striped ribbed areas on their periphery, and ribbed periphery are in complimentar the m interaction, forming a locking configuration. Preferably, the upper and lower parts of the surface of the front end of the rear main section of the base holder are concave backward curved configuration, and the left and right side areas of the surface of the front end of the rear main section of the base holder are convex forward arcuate configuration. Thus, the upper and lower side areas of the intermediate holder stand back over those placed under them, sections of the main cardholder and provide increased protection against wear of the main holder.

Compared with the conventional configuration node of the tooth tip/holder complementary configuration of the front of the cradle and associated cavities of the top and the holder provides to the node of the tooth tip/holder number of advantages, including a smaller size with the same effort, reduced frontal area, which provides a host penetration into the soil, improved resistance to rotation between the components of the tooth and holder and reduced operating voltage on the connecting pins. Although shows a variant embodiment of the invention includes a section of the holder of two parts, a specialist in the art will easily understand that the section of the holder as an option could optionally be an integral element is ergates. In addition, although the principles of the present invention have been shown here for the incarnation of the site, consisting of the top of the tooth and holder, a specialist in the art will easily understand that such principles also could be used to gain advantages in other types of nodes wear element and support element in excavating equipment.

The invention is illustrated in the drawings, on which:

Figure 1 is a top view of the node vertex excavating tooth and holder embodying the basic principles of the invention;

Figure 2 is a side view of the vertical projection of the node;

Figure 3 - three-dimensional image holder in a disassembled state;

4 is a view of the front end of the intermediate section of the holder on an enlarged scale;

5 is a view of the rear end section of the tooth tip site on an enlarged scale;

6 is a view of the front end section of the main holder of a node in an enlarged scale; and

Fig.7 is a view of the rear end of the intermediate holder on an enlarged scale.

Figure 1-3 shows performed in accordance with the present invention, the node 10 vertex excavating tooth and holder, which, as shown, includes a replaceable top 12 of the tooth, the intermediate holder 14, the core holder 16, the first connecting structure, shown schematically excavated connection is on pin 18, and the second connecting structure, shown schematically removed the connecting pin 20. Node 10 is made elongated along the longitudinal axis 22 in the direction from beginning to end and is fixed with the tab forward for the area the leading edge of the lower cutting edge 24 excavator bucket, a small section of which is conventionally shown in figure 1 and 2. Node 10 is one of the spaced parallel rows of such nodes (some not shown), equally attached to and protruding beyond the cutting edge 24.

Figure 1-4 and 7 shows the intermediate holder 14, which has a rear main section 26 and the front section 28 of the front. The main section 26 has a surface 30 of the front end, which protrudes forward of the front part 28, the surface 32 of the rear end, which passes through the inside of the cavity 34, the upper and lower walls 36 and 38, and left and right side walls 40 and 42. Arranged in a line connecting the holes 44 and 46, respectively, pass through the left and right side walls 40 and 42 into the cavity 34. The surface 30 of the front end of the base 26 of the holder is made with alternating scars from beginning to end on its periphery, and upper and lower segments 30A, 30b surface 30 of the front end is made convex-curved forward, and left and right sections 30c, 30d surface and 30 of the front end is made concave-curved back. Similarly, the surface of the rear end of the main section 26 of the holder is made with alternating scars from beginning to end on its periphery, and upper and lower sections 32A, 32b surface 32 of the rear end is made convex-curved back, and left and right sections 32C, 32d surface 32 is made concave-curved forward.

The front part 28 of the intermediate holder has along its entire length from the front to the rear surface horizontally elliptical cross-section with upper and lower surfaces 48, 50 and the left and right side surfaces 52 and 54. Unless you consider a small design angle of 5 degrees or less, the upper and lower surfaces 48, 50 are essentially parallel to the axis 22 of the node. On the front part 28 of the front end is made of hardening the tip 56 with a smaller cross-section, having an elongated horizontally elliptical cross-section and top and bottom surfaces 58 and 60, which are also essentially parallel to the axis 22 of the node. Side protruding reinforcing bumps 62 and 64, respectively, performed on the left and right lateral surfaces 52, 54 of the front part 28 of the holder in the places of their connection with the surface 30 of the front end of the base 26 of the holder. The connecting hole 66 passes horizontally through the front portion 28 of the holder and out narutogames bumps 62 and 64.

As shown in figure 1, figure 3 and figure 5, the top 12 has a corresponding cutting edge 68 made on its front end surface 70 of the rear end, through which passes inside the cavity 72, the upper and lower walls 74 and 76, and the left and right side walls 78 and 80, which are arranged in a line connecting the holes 82, 84, respectively, are held inside the cavity 72. The surface 70 of the rear end is made with alternating scars on its periphery, has upper and lower sections 70A, 70b, which are concave curved forward and have curves, respectively complementary to the previously described sections 30A, 30b of the surface of the front end of the base 26 of the intermediate holder, and left and right side sections 70C, 70d, which are convex curved back and have curves, respectively complementary to the previously described sections 30C, 30d surface of the front end of the base 26 of the intermediate holder.

The top 12 tooth fixed with replacing on the front part 28 of the intermediate holder by placing the front part 28 within the cavity or pocket 72 tooth tip, thus causing the connecting holes 82, 84 vertices in the outer position in alignment with the opposite ends located horizontally holes 66 of the front part of the holder and then quickly inserting the front connector shti is t 18 arranged in a line connecting the openings 66, 82, 84. Inserted the connecting pin 18 suitably held in such holes in the traditional way, which is not the object of the present invention, and operates so as to keep with the ability to capture, with the possibility of separation of the top 12 on the intermediate holder 14, and the top 12 is wearing a design element for the intermediate holder 14, which, in turn, may be supporting element of design installed for the top 12.

The cavity 72 tooth tip (see figure 5) has the configuration of the inner surface complementary to the configuration of the outer surface of the front part 28 of the intermediate holder that can be fixed with replacement. In detail, the cavity 72 contains a plot 28a having such a configuration complementary to place the housing insert the front part 28 of the intermediate holder and the left and right notches a, 64A of the inner side wall, respectively, and in which the complementary place reinforcing protuberances 62, 64 of the front part of the holder. Fixing holes 82, 84 are respectively in the lateral direction inside the grooves a, 64A.

Due to the unique shapes of the peaks 12 of the tooth and the intermediate holder 14 sub-node 12, 14 tooth tip/intermediate holder has a number of advantages compared to conventional nodes is Ersin/holder. For example, an elongated horizontally elliptical cross-sectional shape along the entire length of the front part 28 of the intermediate holder essentially eliminates the flat area on the front part 28, thereby correspondingly reducing her unwanted areas of stress concentration. This, together with the axial location of the upper and lower surfaces 48 and 50 of the front portion 28 allows the front part 28 to be smaller than the front parts of the known configuration without appreciable reduction of the working load. This, in turn, provides a sub-node 12, 14 top/holder with the corresponding lower front region, which improves the efficiency of penetration into the earth.

Associated with the connection between the protuberances 62, 64 of the front and hollows a 64A and pocket tops the connection between the reinforcing end 56 of the front part 28 and the corresponding surface area of the pocket tops provides secure the top 12 of the tooth with essentially increased resistance to rotation when the operation with respect to the intermediate holder 14 along the axis 22 of the node. This protivopolojna stability is additionally increased by the essentially horizontally positioned upper and lower surfaces 48 and 50 of the front portion for reinforcing the end 56. In addition, the horizontal position of the elongated connective is instrukcii 18 provides its location on the neutral axis of the front part 28 (and protection from stretching and compression of the anterior part of the bending stress), thus, as is desirable, resulting in a lower operating voltages, applied to the set connector 18. Essentially horizontally oriented upper and lower side surfaces 48, 50 of the front portion 28 further reduce workloads on the connecting structure 18.

As best shown in figures 1 and 2, when installing the top 12 of the tooth quickly and with the possibility of replacing intermediate holder 14 surface 70 of the rear end of the top 12 with alternating scars is complementary interaction through engagement with alternating scars surface 30 of the front end of the main section 26 of the intermediate holder 14. This is a unique arcuate connection with scars serves to hold the top 12 from rotating around the axis 22 relative to the intermediate holder 14. In addition, the rear scars sections 30C, 30d surface of the front end of the base 26 of the holder mainly provide accommodation of the connecting structure 18 further on the holder 14 for a more bold and, thus, a stronger plot on it.

The connection between the intermediate holder 14 and the main holder 16 is similar to the connection between the top 12 and the intermediate holder 14. Specifically, and now with reference to figures 1-3, 6 and 7, the core holder 16 includes a rear main section 86 and before the third section 88 of the front. The main plot 86 has a surface 90 of the front end, which protrudes forward of the front part 88 and spaced vertically upper and lower passing back mounting legs 92, 94, which form between them a cavity 96, into which the area of the cutting edge 24 of the bucket. The legs 92, 94, respectively, welded or in some other way attached to the upper and lower sides of the cutting edge 24 of the bucket support for the core holder 16 on the flange 24 of the bucket. The surface 90 of the front end of the base 86 of the main holder contains in the direction from the front to the back of the striped scars on the periphery, and upper and lower sections 90A, 90b surface 90 of the front end is made concave-curved back, and left and right sections of the 90s, 90d surface 90 of the front end is made convex-curved forward.

The front portion 88 of the main holder has the entire length from end to end horizontally elongated elliptical cross-section, with the upper and lower surfaces 98, 100 and the left and right side surfaces 102, 104. Unless you consider a small design angle of 5 degrees or less, the upper and lower surfaces 98, 100 are essentially parallel to the axis 22 of the node. On the front portion 88 of the front end is made of reinforcing end 106 a smaller cross-section having elongated in Gori is antali elliptical cross-section and top and bottom surfaces 108 and 110, which is also essentially parallel to the axis 22 of the node. Side protruding reinforcing bumps 112 and 114, respectively, performed on the left and right side surfaces 102, 104 of the front portion 88 of the holder in the places of their connection with the surface 90 of the front end of the base 86 of the holder. The connecting hole 116 passes horizontally through the front part of the holder 88 and exits through the bumps 114 and 116.

Intermediate holder 14 attached with the possibility of replacing the front portion 88 of the main holder by placing the front part 88 inside the rear cavity or pocket 34 of the intermediate holder, thus causing the connecting holes 44, 46 of the holder in the outer position in alignment with the opposite ends located horizontally holes 116 of the front part of the main holder, and then the operational introduction of the rear connecting pin 20 arranged in a line connecting the openings 44, 46, 116. The inserted connecting pin 20 accordingly is held in such holes in the traditional way, which is not the object of the present invention, and operates so as to keep with the ability to capture and separation of the intermediate holder 14 on the main holder 16, the intermediate holder is wearing a design element for the OS is the ESD of the holder 16, which, in turn, may be supporting element of design installed for intermediate holder 14.

The cavity 34 of the intermediate holder (see Fig.7) has the configuration of the inner surface complementary to the configuration of the outer surface of the front portion 88 of the main holder, which is made with the possibility of disconnection. Specifically, the cavity 34 has a plot I made for the introduction of complementary housing front portion 88 of the main holder, and the left and right notches a, a in the inner side walls, respectively, and complementary entered the inserted reinforcing bumps 112 and 114 of the front portion of the main holder. The connecting holes 44, 46 are respectively in the lateral direction inside the grooves a, a.

Due to the unique shapes of the intermediate holder 14 and the main holder 16 sub-node 14, 16 of the intermediate holder/main holder has a number of advantages compared to conventional nodes excavator wear of the structural element and support element of the design. For example, horizontal elliptical cross-sectional shape along the entire length of the front portion 88 of the holder essentially eliminates the flat area on the front portion 88, thereby correspondingly reducing unwanted areas of stress concentration. This is natural with essentially the axial location of the upper and lower surfaces of the front portion 88, allows the front portion 88 to be less than the front parts of the known configuration without appreciable reduction of the working load. This, in turn, provides a sub-node 14, 16 of the intermediate holder/main holder with the corresponding lower front region, which improves the efficiency of penetration into the earth.

Associated with the connection between the bumps 112, 114 of the front and hollows a and a pocket tops the connection between the reinforcing end 106 of the front portion 88 and the corresponding surface area of the pocket intermediate holder provides stiffening of the holder 14 with essentially increased resistance to rotation when the operation with respect to the main holder 16 around the axis 22 of the node. This protivopolojna stability additionally increased by essentially horizontal upper and lower surfaces 108 and 110 of the front portion for reinforcing the end 106. In addition, the horizontal location of the elongated connecting structure 20 provides accommodation for its "neutral" axis front of the 88 (and protection from stretching and compression of the anterior part of the bending stress), thereby, as it is desirable, resulting in a lower operating voltages, applied to the set connector 20. Essentially horizontally oriented upper and Igreja surface 108, 110 front portion 88 further reduce workloads on the connecting structure 20.

As best seen in figures 1 and 2, when operational and removable installation of the intermediate holder 14 on the main holder 16, the surface 32 of the rear end with alternating scars is complementary interacting through engagement with alternating scars surface 90 of the front end of the main section 86 of the main holder 16. This is a unique arcuate connection with scars is for the stability of the intermediate holder 14 to rotate around the axis 22 relative to the base holder 16 around the axis 22 of the node. In addition, the rear scars sections 90a, 90b surface of the front end on the base 86 of the main holder is mainly placed on the upper and lower sections of the rear wall of the intermediate holder 14 in such position that when they are superimposed on the respective front upper and lower parts of the core holder 16 and resist abrasion, thus increasing, as is desirable, the service life of the main holder 16.

Although the top of the excavator tooth and site holder 10 is clearly described here as consisting of two parts section of the holder, the specialist in the art it will be obvious that the two parts of the holder 14 and 16 can be replaced, if desired, a single cell battery (included) is that the design of the holder. In addition, although the node 10 has been represented here as structures formed by the vertices and holder, alternatively it could be formed, if desired, other types of attachable wear and supporting structural elements.

The foregoing detailed description is given only as a non-limiting example, the nature and scope of the present invention is limited solely by the attached claims.

1. Wear element earthmoving equipment containing the front and rear ends located on the axis at a distance from each other, a cavity, passing in the forward direction through the rear end and shaped for complementary accommodation section of the front part of the support element, and the said cavity essentially along its entire length from beginning to end is elongated horizontally in a generally elliptical cross-section and formed in the lateral direction spaced vertically upper and lower walls having vertically facing each other opposite inner side surfaces, passing forward from the rear end, and horizontally distant from the other opposite side wall located between the top and bottom walls and having a horizontally opposite inner side surfaces, a pair for g is rizontal facing each other of the grooves, formed in the inner lateral surfaces of opposite side walls and an opening in the backward direction through the rear end, and a pair of horizontally opposite the connecting holes, passing inward through the opposite side walls in said recesses.

2. Wear element earthmoving equipment according to claim 1, in which the wear element earthmoving equipment is interchangeable top of a tooth.

3. Wear element earthmoving equipment according to claim 1, in which the wear element earthmoving equipment is the holder.

4. Wear element earthmoving equipment according to claim 1, in which facing each other vertically opposite inner side surfaces of the upper and lower walls essentially parallel to the aforementioned axis.

5. Wear element earthmoving equipment according to claim 4, in which facing each other vertically opposite inner side surfaces of the upper and lower walls are mainly along the entire length of said cavity from beginning to end.

6. Wear element earthmoving equipment according to claim 5, in which the opposite vertical inner side surfaces of the upper and lower walls have front sections, which are inserted vertically to balance the vertical counter is easy inner side surfaces of the upper and lower walls.

7. Wear element earthmoving equipment according to claim 1, in which the notches are forward from the rear end only through a portion of the length from the beginning to the end of the said cavity.

8. Wear element earthmoving equipment according to claim 1, in which the notches are generally rectangular cross-section.

9. Wear element earthmoving equipment according to claim 1, in which the rear end has a ribbed, rearward-facing surface, forming the entrance into the said cavity.

10. Wear element earthmoving equipment according to claim 9, in which the ribbed surface formed on the periphery of alternating curved forward and back areas.

11. Wear element earthmoving equipment according to claim 1, in which the upper and lower walls have a concave forward arcuate surface of the rear end, and opposite side walls have a convex back curved surface of the rear end.

12. Wear element earthmoving equipment according to claim 1, in which the upper and lower walls have a convex back curved surface of the rear end, and opposite side walls have a concave forward arcuate surface of the rear end.

13. Supporting element excavation equipments, located longitudinally on its axis, contains rear main section having upper and N. the life of the party, horizontally opposite left and right sides, and the surface of the front end section of the front portion protruding from said surface of the front end and made with the possibility of complementary placement in the cavity of the rear end of the wear element, and referred to the area of the front part is elongated horizontally in a generally elliptical cross-section essentially along its entire length from end to end, top and bottom surfaces and horizontally opposite left and right side surfaces, horizontally opposite reinforcing the tabs on the left and right side surfaces and protruding in the lateral direction of them out, and connective hole passing horizontally through the above section of the front and opening to the outside through the reinforcing tabs.

14. Supporting element earthmoving equipment in item 13, in which the reference element is a holder.

15. Supporting element excavation equipment 14, in which the holder has a cavity in the rear end shaped for complementary accommodation section of the front portion of the other holder.

16. Supporting element excavation equipment 14, in which the holder is the area of the rear end attached to the cutting area of the chrome and the excavator bucket.

17. Supporting element earthmoving equipment on clause 16, in which the said area of the rear end of the holder includes spaced vertically upper and lower passes in the direction of the back mounting legs having a cavity between them, designed to accommodate the area of the cutting edge of the bucket.

18. Supporting element earthmoving equipment in item 13, in which the upper and lower surfaces of the above-mentioned section of the front portion essentially parallel to the aforementioned axis.

19. Supporting element earthmoving equipment p, in which the upper and lower surfaces of the above-mentioned section of the front part have front sections, vertically inserted to balance the mentioned upper and lower surfaces.

20. Supporting element earthmoving equipment in item 13, in which the reinforcing tabs are reinforcing protuberances adjacent to the front surface of the rear end of the main site, and pass through only part of the length from the beginning to the end of the said plot in the front.

21. Supporting element excavation equipments in claim 20, in which the hardening bulge have essentially rectangular cross section.

22. Supporting element earthmoving equipment in item 13, in which the said surface of the front end of the rear main section forms for the deposits of the end of the said plot in the front.

23. Supporting element earthmoving equipment on p.22, in which the said surface of the front end of the rear main section has a ribbed configuration.

24. Supporting element earthmoving equipment item 23, which referred to the ribbed configuration is formed by alternating on the periphery of the curved backward and forward sections of said surface of the front end of the rear main section.

25. Supporting element earthmoving equipment in item 13, in which the upper and lower parts of said front surface of the rear end of the main site have a convex forward arcuate configuration, and the left and right side areas of said surface of the front end of the rear main section are concave backward curved configuration.

26. Supporting element earthmoving equipment in item 13, in which the upper and lower parts of the mentioned surface of the front end of the rear main section are concave backward curved configuration, and the left and right side areas of said surface of the front end of the rear main section are convex forward arcuate configuration.

27. Node wear and supporting elements earthmoving equipment, located longitudinally on its axis and containing a reference element having the rear main plot of the upper and lower sides, opposite horizontally left and right sides and the surface of the front end section of the front portion protruding from said surface of the front end and having an elongated horizontally in a generally elliptical cross-section essentially along the entire length from beginning to end, top and bottom surfaces and horizontally opposite left and right surfaces; opposing horizontal reinforcing the tabs on the left and right surfaces of the above-mentioned section of the front part and protruding from them in the lateral direction; and a connecting hole passing horizontally through the above section of the front and opening to the outside through the mentioned reinforcing tabs; wear element having a cavity in the rear end, in which complementary and undocking posted above section of the front and opposite horizontal side walls with a connecting hole passing through them in the said cavity and being on the same line when combining outside with the opposite ends of the connecting holes in the mentioned section of the front part, and a connecting structure, placed in the connecting holes of the above-mentioned section of the front part and the wear element and firmly holding of alively item mentioned on the plot front.

28. Site on item 27, in which the wear member is a replaceable tooth tip and the reference element is a holder.

29. Site p in which the holder is an intermediate holder.

30. Site on item 27, in which the wear element is the first holder and the reference element is the second holder.

31. Node item 30, in which the second holder is the holder, subject to operational consolidation of the area of the cutting edge of the bucket.

32. Site on item 27, in which the upper and lower surfaces of the above-mentioned section of the front portion essentially parallel to the aforementioned axis.

33. Site p, in which the upper and lower surfaces of the above-mentioned section of the front part have front sections, vertically inserted to balance the upper and lower surfaces.

34. Site on item 27, in which the reinforcing tabs are reinforcing protuberances that are adjacent to the surface of the front end of the rear main plot and are only part of the length from the beginning to the end of the said plot in the front.

35. Node 34, in which the hardening bulge are generally rectangular configuration.

36. Node item 27 in which the said surface of the front end of the rear main section of the support element describes the rear end of the said section the front part supports the th element.

37. Site p, in which the said surface of the front end of the rear main section of the support element and the surface of the rear end of the wear element is made textured in a direction from front to back and form a locking configuration.

38. Site on clause 37, in which the said surface of the front end of the rear main section of the support element and the surface of the rear end of the wear element are on the periphery of alternating curved forward and back areas.

39. Site on clause 37, in which the upper and lower parts of the mentioned surface of the front end of the rear main section of the support element are convex forward arcuate configuration, and the areas left and right sides of the aforementioned surface of the front end of the rear main section of the support element are concave backward curved configuration.

40. Site on clause 37, in which the upper and lower parts of the mentioned surface of the front end of the rear main section of the support element are concave backward curved configuration, and plots the left and right sides of the aforementioned surface of the front end of the rear main section of the support element are convex forward arcuate configuration.



 

Same patents:

FIELD: earth-moving equipment.

SUBSTANCE: proposed excavator tooth unit contains holder with main part and nose part, both arranged coaxially relative to longitudinal axial line of holder. Main part is made for fastening said holder to excavator. Nose part terminates in free front end and it has upper and lower surfaces located mainly respectively higher and lower than longitudinal axial line of said holder. Upper surface of said nose part has two inclined sides arranged at opposite sides from longitudinal axial line and in front relative to rear end of said nose part over its length. Each inclined side of said upper surface is arranged at angle of 25-65° to horizontal plane. Lower surface of said nose part has two sides arranged at opposite sides relative to longitudinal axial line of said holder. Cavity made in said nose part comes to one of inclined sides of said upper surface of nose part of holder, being arranged along axis intersecting opposite sides of upper and lower surfaces of said nose part at angle of 30-60° to horizontal plane. Excavator tooth has front and rear end parts. Blind space open to rear end of said tooth and designed for fitting-in section of nose part of holder is made in rear end part of said tooth. Tooth is provided with hole arranged in working combination with inclined cavity of holder when tooth and holder are in working connection. Pin-type locking device is provided being arranged in cavity of said holder and at least partially passed through hole in said tooth for detachable fastening of tooth and holder in working connected. Tooth and holder described in invention form with tooth unit a ground of inventions.

EFFECT: improved reliability of excavator tooth unit.

40 cl, 31 dwg

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Tooth bucket // 2184814
The invention relates to earth moving equipment, namely to shovel cyclic actions, and can be used in the mining industry

The invention relates to the use of work equipment excavators, and more specifically to methods of attachment of the teeth of the bucket straight shovel, dragline, reverse shovel

Tooth bucket // 2167980
The invention relates to earth-moving equipment, and more precisely to the teeth for excavator buckets, and most successfully can be applied in the design and manufacture of buckets of excavators designed to work with unsorted rocky soils

The invention relates to the mining industry and can be used to equip the working bodies of the mining and earthmoving machines

The invention relates to the mining industry and can be used to equip the working bodies of the mining and earthmoving machines

FIELD: earth-moving equipment.

SUBSTANCE: proposed excavator tooth unit contains holder with main part and nose part, both arranged coaxially relative to longitudinal axial line of holder. Main part is made for fastening said holder to excavator. Nose part terminates in free front end and it has upper and lower surfaces located mainly respectively higher and lower than longitudinal axial line of said holder. Upper surface of said nose part has two inclined sides arranged at opposite sides from longitudinal axial line and in front relative to rear end of said nose part over its length. Each inclined side of said upper surface is arranged at angle of 25-65° to horizontal plane. Lower surface of said nose part has two sides arranged at opposite sides relative to longitudinal axial line of said holder. Cavity made in said nose part comes to one of inclined sides of said upper surface of nose part of holder, being arranged along axis intersecting opposite sides of upper and lower surfaces of said nose part at angle of 30-60° to horizontal plane. Excavator tooth has front and rear end parts. Blind space open to rear end of said tooth and designed for fitting-in section of nose part of holder is made in rear end part of said tooth. Tooth is provided with hole arranged in working combination with inclined cavity of holder when tooth and holder are in working connection. Pin-type locking device is provided being arranged in cavity of said holder and at least partially passed through hole in said tooth for detachable fastening of tooth and holder in working connected. Tooth and holder described in invention form with tooth unit a ground of inventions.

EFFECT: improved reliability of excavator tooth unit.

40 cl, 31 dwg

FIELD: excavation equipment, particularly small metalwork for digging elements.

SUBSTANCE: unit for wearing and supporting members has replaceable tooth head and holding structure including intermediate holder with front part of front end arranged in pocket of rear end of tooth head and complementary thereto. Front part is secured in the pocket by the first glut pin structure. Holding structure also has main holder with front part of front end complementarily inserted in pocket of rear end of intermediate holder and secured in the pocket by the second glut pin structure. Rear end of main holder is operatively secured to cutting blade of excavator bucket. Each front part have oval configuration elongated in horizontal direction. Glut pin structures extend in horizontal direction. Front parts have reinforcing projections arranged in orifices adapted to secure front parts. Holder and tooth head are provided with mating ribbed areas.

EFFECT: reduced unit size, improved power and working characteristic, as well as wear-resistance characteristics.

40 cl, 7 dwg

FIELD: dredgers or soil-shifting machines for special purposes, particularly to cut chaps in ground.

SUBSTANCE: device comprises at least one cutter brought into rotation and at least one the first cutting member to cut ground during cutter rotation in the first direction. At least one the second cutting member for ground cutting rotated in the second direction opposite to the first one is installed on the cutter. At least one of the cutting members may be shifted from the first ground cutting position to the second diverted position. Executive tool to shift the cutting member between the first and the second positions is also provided.

EFFECT: increased cutting ability in both rotational directions, prevention of excessive cutting member wear.

12 cl, 2 dwg

FIELD: mechanical engineering; design of excavator dipper teeth.

SUBSTANCE: parallelepiped inserts are fitted in tooth point and inserts of cylindrical form are fitted further on along working plane. Inserts manufactured of wear-resistant cast iron, owing to shadow effect, prevent intensive abrasive wear of steel base, thus increasing service life of tooth. As wear-resistant inserts are arranged only on one of working surfaces, other surfaces (opposite one) is subjected to more intensive wear which provides finally sharpening of tooth in process of operation. Use of such design and method of manufacture make it possible to increase service live more than two times and provided reliability of operation of excavator dipper.

EFFECT: increased service life and provision of self-sharpening of tooth point owing to fitting-in small size wear-resistant cast iron parts in steel base.

4 cl, 4 dwg

FIELD: mining and building, particularly material shifting devices adapted to releasably connect replaceable bit of excavation tooth with transitional extension structure fastened thereto.

SUBSTANCE: replaceable bit is telescopically put on transition extension and removably secured thereto by means of elongated flat connection unit provided with side peripheral part free of constriction. Connection unit extends in longitudinal direction through bit and connection orifices aligned with each other and prevents bit removal from transitional extension by forward movement thereof. Transversal support surface of bit side facing one end of connection unit prevents it outward passage through one bit orifice. Blocking member supported by another connection unit end and engaged with groove in another bit orifice prevents outward connection member passage through bit orifice provided with grooves. Support structure releasably retains the blocking member in closing and opening directions, which prevent blocking member displacement parallel to connection unit length.

EFFECT: simplified working tool replacement.

51 cl, 5 dwg

FIELD: mining industry.

SUBSTANCE: invention can be used in working members of mining and earth-moving machines, particularly, in machines for digging hard and frozen soils. Proposed ripper point for breaking hard and frozen soils has shank with slot for fastening, and wedge-like working part formed by front end surface, two side surfaces and rear surface. Working part of front end surface located in place of intensive wear is reinforced along longitudinal axial line H-H by three of stress concentrators, being round elements projecting over front end working surface and dipped into body of point. Distance L between concentrators in row and distance 1 between rows is equal to triple value of their diameter.

EFFECT: reduced effort to applied to small soil, reduced power consumption for ripping, increased service life of ripper point.

3 dwg

FIELD: mining, particularly excavation equipment for detachable connection of replaceable tooth crown in earth-shifting machine.

SUBSTANCE: device comprises the first and the second telescopically joined members, aligned orifices formed in the members and adapted for connector receiving and connection finger unit for forced retention of the first and the second members so that the members are telescopically arranged one relatively another. Connection finger unit comprises body, fixing member and resilient stop member. The body is arranged in the aligned orifices so that the body may be removed therefrom. The connector prevents separation of the first member from the second one. The body also has channel opened in outer surface thereof and having non-round side surface section. Fixing member is arranged in channel and limited by side surface section. The fixing member may rotate with respect to the body from fixing position into releasing position and in reverse direction. Resilient stop member is connected with fixing member so that the stop member may rotate together with fixing member. The stop member is adapted to retain fixing member in fixing position. The stop member has periphery delimiting fixing member. The periphery is slidably joined with non-round side surface section so that the periphery and the side surface are mutually complementary.

EFFECT: increased efficiency of connection unit for wearing and support member connection.

37 cl, 14 dwg

FIELD: construction.

SUBSTANCE: cog unit of earthmover bucket comprises cog with seat, which is open at the back and is a female part, besides specified cog has hole for fitting of fixing stud, adapter, having ledge, which is a male part that matches shape of specified seat, besides mentioned ledge is crossed with matching site for fixing stud, fixing stud inserted into specified hole of cog and into specified matching site in adapter and serving for cog fixation to adapter. At least one of specified opposite surfaces of ledge has lowered or deepened area arranged around matching site for fixing stud. At least the wall of seat that is inverted towards specified surface of ledge has relief part additionally to specified lowered or deepened area, having shape of boss that gradually increases in direction of open part of seat. Specified hole in seat walls and specified matching site in ledge have according flat back surfaces, which are matched to each other. Fixing stud has flat back surface, which simultaneously lies onto specified back surfaces of hole and matching site.

EFFECT: simplified design of cog unit for manufacturing, lower costs, avoidance of cog disconnection from adapter under severe operation conditions.

32 cl, 14 dwg

FIELD: transport.

SUBSTANCE: proposed device comprises tooth arranged in adapter and connecting element with sleeve made from elastic deformable material, and key. Said tooth and adapter have holes and zones to receive said sleeve and key. Note that said key is inserted into sleeve to extend therefrom. Note also that said key is fitted aligned with sleeve to displace therein, while sleeve is arranged in adapter part. Key has end part that makes key base, and key head on the body opposite part. Key head has part that makes bearing surface with shifted center. The latter enters appropriate surface made in the tooth first hole. Key head end can be turned by actuator element. Key base has anchoring appliance that enters in elastically deformable sleeve due to first tightening preset-force action. Key base end has conical part that thrusts against tooth second hole making second tightening action exceeding aforesaid one and created by key turn. Key turn governs is shift relative to its initial axis and allows its locking by anchorage on either tooth metal components or different bearing zones.

EFFECT: appropriate locking of tooth-adapter link, higher labor safety.

16 cl, 21 dwg

FIELD: construction.

SUBSTANCE: group of inventions relates to the field of mining and construction, in particular, to rotary cutting tool, which may be used to pierce through thickness of soil. Rotary cutting tool includes body, which has axial front end and axial back end, and also axial length. Hard tip, which has remote end, is fixed to body of cutting tool at its axial front end. Body of cutting tool has a section of back surface, arranged along axis behind remote end of hard tip, and having transverse dimension. Section of back surface includes axial front transverse dimension and minimum transverse dimension, which is located along axis behind axial front transverse dimension. Axial front dimension exceeds minimum transverse dimension. Section of back surface has axial length within the limits from approximately 10% to 35% of axial length of cutting tool body.

EFFECT: improvement of rotary cutting tool, to reduce extent of resistance of rotary cutting tool when piercing through soil thickness, with small angle of separation.

32 cl, 9 dwg

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