阅读说明：本技术 一种挖掘机用可调式车架 (Adjustable frame for excavator ) 是由 李涛 于 2021-09-08 设计创作，主要内容包括：本发明公开了一种挖掘机用可调式车架,包括限位固定环座和金属车架外壳,所述限位固定环座安装固定在金属车架外壳的上端位置上,本发明通过设置有外侧链轮安装板结构,使得便于在内侧链轮安装板外侧调节使用,外侧链轮安装板的安装板外壳通过伸缩限位杆套接固定连接在内侧链轮安装板上,这样安装板外壳因伸缩限位杆便于在内侧链轮安装板内部伸缩调节改变间距,便于根据链轮和引导轮的尺寸进行调节安装,因固定螺柱套固定连接在螺钉拉扯板上,这样因螺钉拉扯板的拉扯固定,使得安装板外壳与内侧链轮安装板在使用的时候不会滑动改变间距,并且通过设置有螺钉拉扯板结构,这样便于固定内侧链轮安装板和外侧链轮安装板。(The invention discloses an adjustable frame for an excavator, which comprises a limiting fixed ring seat and a metal frame shell, wherein the limiting fixed ring seat is fixedly arranged at the upper end position of the metal frame shell, the invention is convenient to adjust and use at the outer side of an inner chain wheel mounting plate by arranging an outer chain wheel mounting plate structure, the mounting plate shell of the outer chain wheel mounting plate is fixedly connected on the inner chain wheel mounting plate in a sleeved mode through a telescopic limiting rod, so that the mounting plate shell is convenient to adjust and change the interval in the inner chain wheel mounting plate in a telescopic mode due to the telescopic limiting rod, the mounting is convenient to adjust and mount according to the sizes of a chain wheel and a guide wheel, and a fixed screw sleeve is fixedly connected on a screw pulling plate, so that the mounting plate shell and the inner chain wheel mounting plate cannot slide to change the interval when in use due to the pulling and fixing of the screw pulling plate structure, thus, the inner side chain wheel mounting plate and the outer side chain wheel mounting plate are convenient to fix.)

1. The utility model provides a frame with adjustable excavator is used, includes spacing stationary ring seat (2) and metal frame shell (8), its characterized in that: the limiting fixed ring seat (2) is arranged and fixed on the upper end position of the metal frame shell (8), a middle limiting shaft lever (1) is arranged in the middle of the joint of the limiting fixed ring seat (2) and the metal frame shell (8), a metal pull hook ring (7) is arranged at the rear end of the metal frame shell (8), a bucket connecting block (5) is arranged at the front end of the metal frame shell (8), the two ends of the metal frame shell (8) are provided with inner side chain wheel mounting plates (6), the outer end of the inner side chain wheel mounting plate (6) is provided with an outer side chain wheel mounting plate (3), the inner side chain wheel mounting plate (6) and the outer side chain wheel mounting plate (3) are fixedly connected through a screw pulling plate (4), and the upper ends of the inner side chain wheel mounting plate (6) and the outer side chain wheel mounting plate (3) are provided with riding wheel mounting blocks (9).

2. The adjustable frame for the excavator of claim 1, wherein: outside sprocket mounting panel (3) are including turning recess (31), flexible gag lever post (32), fixed stud cover (33) and mounting panel shell (34), the inboard upper end of mounting panel shell (34) is provided with flexible gag lever post (32), the outside of flexible gag lever post (32) is located and is provided with turning recess (31) on mounting panel shell (34), the upper end corner of mounting panel shell (34) is provided with fixed stud cover (33), flexible gag lever post (32) fixed connection is on inboard sprocket mounting panel (6), fixed stud cover (33) are connected on board (4) is dragged to the screw.

3. The adjustable frame for the excavator of claim 1, wherein: the bucket connecting block (5) comprises a connecting round rod (51), side concave blocks (52), a cylinder body fixing block (53) and a fixing bolt (54), the cylinder body fixing block (53) is arranged in the middle of the inside of the connecting round rod (51), the side concave blocks (52) are arranged on the connecting round rod (51) in the outer side of the cylinder body fixing block (53), the fixing bolt (54) is arranged on the inner side of each side concave block (52), and the side concave blocks (52) are fixedly connected onto a metal frame shell (8).

4. The adjustable frame for the excavator of claim 1, wherein: the screw pulling plate (4) comprises a metal stud (41), a clip-shaped adjusting pulling plate (42), a locking nut (43) and a stud end (44), the metal studs (41) are arranged at two ends of the inner side of the clip-shaped adjusting pulling plate (42), the locking nut (43) is arranged above the joint of the clip-shaped adjusting pulling plate (42) and the metal stud (41), and the stud end (44) is arranged at the lower end of the metal stud (41).

5. The adjustable frame for the excavator of claim 1, wherein: metal shackle (7) includes side screw (71), metal long slab (72), rope through-hole (73) and bottom fixed block (74), be provided with metal long slab (72) in the middle of the upper end of bottom fixed block (74), the inboard of metal long slab (72) is provided with rope through-hole (73), the outside of metal long slab (72) is located and is provided with side screw (71) on bottom fixed block (74), bottom fixed block (74) are through side screw (71) fixed connection on metal frame shell (8).

6. The adjustable frame for the excavator of claim 1, wherein: inboard sprocket mounting panel (6) are including turning spacing groove (61), activity regulating plate (62) and turning stud ring (63), the outer end corner of activity regulating plate (62) is provided with turning spacing groove (61), be provided with turning stud ring (63) on the upper end corner of activity regulating plate (62), activity regulating plate (62) fixed connection is on metal frame shell (8), turning stud ring (63) fixed connection is on board (4) is pulled to the screw.

7. The adjustable frame for the excavator of claim 1, wherein: the metal frame shell (8) comprises a corner slotted hole (81), a square frame shell (82), an outer side connecting plate (83) and a middle through hole (84), the middle of the inside of the square frame shell (82) is provided with the middle through hole (84), the outer end of the square frame shell (82) is provided with the outer side connecting plate (83), the middle of the outer side connecting plate (83) is provided with the corner slotted hole (81), and the outer side connecting plate (83) is fixedly connected onto the inner side chain wheel mounting plate (6).

8. The adjustable frame for the excavator of claim 1, wherein: spacing fixed ring seat (2) are including inboard lantern ring (21), fixed outer loop (22) and inside appearance chamber (23), inboard a week of fixed outer loop (22) is provided with inboard lantern ring (21), be provided with inside appearance chamber (23) in the middle of the inside of inboard lantern ring (21), fixed outer loop (22) fixed connection is on metal frame shell (8).

9. The adjustable frame for the excavator of claim 1, wherein: the limiting fixing ring seat (2) is fixedly connected to the middle position of the upper end of the metal frame shell (8) in a welding mode, and the limiting fixing ring seat (2) is communicated with the inside of the metal frame shell (8).

10. The adjustable frame for the excavator of claim 1, wherein: fixed connection is cup jointed to inboard sprocket mounting panel (6) and outside sprocket mounting panel (3), just the junction outside of inboard sprocket mounting panel (6) and outside sprocket mounting panel (3) is in on the same straight line.

Technical Field

The invention relates to the technical field of excavators, in particular to an adjustable frame for an excavator.

Background

An excavator, also known as a digger, is an earth moving machine that excavates material above or below a load bearing surface with a bucket and loads it into a transport vehicle or unloads it to a stockyard. The excavator consists of a power device, a working device, a swing mechanism, a control mechanism, a transmission mechanism, a traveling mechanism and the like, and is mainly used for excavating materials such as soil, coal, silt and the like. When the walking mechanism of the excavator is assembled, a frame, a track transmission mechanism and the like of the excavator are needed to be used for assembly.

When the frame of the excavator walking mechanism is installed and used, the gap of the chain wheel installation plate cannot be effectively adjusted, so that the chain wheel, the riding wheel and the guide wheel cannot be conveniently installed, and the installation cannot be adjusted according to the sizes of the chain wheel, the riding wheel and the guide wheel, so that the installation is not convenient.

Therefore, it is necessary to provide an adjustable frame for an excavator to solve the above technical problems.

Disclosure of Invention

The invention aims to provide an adjustable frame for an excavator, which aims to solve the problem that the gap of a chain wheel mounting plate cannot be effectively adjusted when the frame of the existing excavator walking mechanism provided by the background technology is installed and used, so that the chain wheel, a riding wheel and a guide wheel are not convenient to install.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a frame with adjustable excavator, includes spacing fixed ring seat and metal frame shell, spacing fixed ring seat erection fixation is on the upper end position of metal frame shell, spacing axostylus axostyle in the middle of the junction of spacing fixed ring seat and metal frame shell is provided with, the rear end of metal frame shell is provided with the metal shackle, the front end of metal frame shell is provided with the scraper bowl connecting block, the both ends of metal frame shell are provided with inboard sprocket mounting panel, the outer end of inboard sprocket mounting panel is provided with outside sprocket mounting panel, inboard sprocket mounting panel and outside sprocket mounting panel pull board fixed connection through the screw, the upper end of inboard sprocket mounting panel and outside sprocket mounting panel is provided with riding wheel installation piece.

Further, the outside sprocket mounting panel includes turning recess, flexible gag lever post, fixed stud cover and mounting panel shell, the inboard upper end of mounting panel shell is provided with flexible gag lever post, the outside of flexible gag lever post is located the mounting panel shell and is provided with the turning recess, the upper end corner of mounting panel shell is provided with fixed stud cover, flexible gag lever post fixed connection is on the inside sprocket mounting panel, fixed stud cover is connected on the board is dragged to the screw.

Further, the scraper bowl connecting block is including connecting round bar, the concave piece of side, cylinder body fixed block and fixing bolt, be provided with the cylinder body fixed block in the middle of the inside of connecting the round bar, the outside of cylinder body fixed block is located and is provided with the concave piece of side on connecting the round bar, the inboard of the concave piece of side is provided with fixing bolt, the concave piece fixed connection of side is on metal vehicle frame shell.

Further, the screw pulling plate comprises a metal stud, a clip-shaped adjusting pulling plate, a locking nut and a stud end, the metal studs are arranged at two ends of the inner side of the clip-shaped adjusting pulling plate, the locking nut is arranged above the joint of the clip-shaped adjusting pulling plate and the metal stud, and the stud end is arranged at the lower end of the metal stud.

Further, the metal shackle includes side screw, metal long slab, rope through-hole and bottom fixed block, be provided with the metal long slab in the middle of the upper end of bottom fixed block, the inboard of metal long slab is provided with the rope through-hole, the outside of metal long slab is located and is provided with the side screw on the bottom fixed block, the bottom fixed block passes through side screw fixed connection on metal frame shell.

Further, inboard sprocket mounting panel includes turning spacing groove, activity regulating plate and turning stud ring, the outer end corner of activity regulating plate is provided with the turning spacing groove, be provided with the turning stud ring on the upper end corner of activity regulating plate, activity regulating plate fixed connection is on metal frame shell, turning stud ring fixed connection is on the board is dragged to the screw.

Further, the metal frame shell comprises corner slotted holes, a square frame shell, an outer side connecting plate and a middle through hole, the middle through hole is formed in the middle of the inside of the square frame shell, the outer side connecting plate is arranged at the outer symmetrical end of the square frame shell, the corner slotted holes are formed in the middle of the outer side connecting plate, and the outer side connecting plate is fixedly connected to the inner side chain wheel mounting plate.

Furthermore, spacing fixed ring seat includes the inboard lantern ring, fixed outer loop and inside appearance chamber, the inboard a week of fixed outer loop is provided with the inboard lantern ring, be provided with inside appearance chamber in the middle of the inside of the inboard lantern ring, fixed outer loop fixed connection is on metal frame shell.

Furthermore, the limiting fixing ring seat is fixedly connected to the middle position of the upper end of the metal frame shell in a welding mode, and the limiting fixing ring seat is communicated with the inside of the metal frame shell.

Further, fixed connection is cup jointed to inboard sprocket mounting panel and outside sprocket mounting panel, just the junction outside of inboard sprocket mounting panel and outside sprocket mounting panel is in on the same straight line.

Compared with the prior art, the invention has the following beneficial effects:

1. the installation plate shell of the outer side chain wheel installation plate is fixedly connected to the inner side chain wheel installation plate through the telescopic limiting rod in a sleeved mode, so that the distance between the corner groove and the inner side chain wheel installation plate is conveniently adjusted due to the telescopic limiting rod, and the gap space between the corner groove and the inner side chain wheel installation plate is effectively changed;

2. the inner side chain wheel mounting plate structure is arranged, so that the inner side chain wheel mounting plate is convenient to fix, adjust and use, the movable adjusting plate of the inner side chain wheel mounting plate is fixedly connected to the metal frame shell in a welding mode, the movable adjusting plate cannot fall off when in use, the outer side chain wheel mounting plate is convenient to pull and change due to the through hole in the inner side of the upper end of the movable adjusting plate, after the change, the movable adjusting plate is fixedly connected to the screw pulling plate due to the corner stud ring of the movable adjusting plate, and the movable adjusting plate is fixed due to the screw pulling plate, so that the position of the movable adjusting plate cannot be changed movably after the fixing, and the movable adjusting plate is convenient to place and use;

3. the inner side chain wheel mounting plate and the outer side chain wheel mounting plate are convenient to fix by arranging the screw pulling plate structure, two metal studs of the screw pulling plate are respectively and rotatably fixed on the inner side chain wheel mounting plate and the outer side chain wheel mounting plate through stud ends, so that the metal studs are convenient to mount, fix and use, after the metal studs are fixed, the metal studs adjust the gap of the pulling plate due to the shape reversion, so that the gap position of the two metal studs is effectively changed, the gap of the inner side chain wheel mounting plate and the outer side chain wheel mounting plate at the lower ends of the metal studs can be adjusted, after the metal studs are adjusted, the metal studs adjust the locking nuts on the periphery side above the pulling plate due to the shape reversion, so that the metal studs are effectively locked and fixed, and the inner side chain wheel mounting plate and the outer side chain wheel mounting plate are effectively fixed after adjustment;

4. through being provided with scraper bowl connecting block structure to convenient and outside shovel head is connected and is used, the concave piece welded fastening of side of scraper bowl connecting block connects on metal vehicle frame shell, the concave piece of side can not drop when using like this, the concave piece of side is because of inside fixing bolt, thereby be convenient for use with outside scraper bowl connecting rod, connect the cylinder body fixed block of round bar because of inside centre, be convenient for like this and outside scraper bowl connect the use, make convenient more when using.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the outboard sprocket mounting plate configuration of the present invention;

FIG. 3 is a schematic view of the bucket attachment block of the present invention;

FIG. 4 is a schematic view of the screw-pull plate structure of the present invention;

FIG. 5 is a schematic view of a metal retractor loop structure of the present invention;

FIG. 6 is a schematic view of the inboard sprocket mounting plate configuration of the present invention;

FIG. 7 is a schematic view of the metal frame shell construction of the present invention;

fig. 8 is a schematic structural view of the position-limiting fixing ring seat of the present invention.

In the figure: 1. a middle limiting shaft lever; 2. a limiting fixed ring seat; 21. an inner collar; 22. fixing the outer ring; 23. an inner cavity; 3. an outer sprocket mounting plate; 31. a corner groove; 32. a telescopic limiting rod; 33. fixing the stud sleeve; 34. a mounting plate housing; 4. a screw pulling plate; 41. a metal stud; 42. a clip-shaped adjusting pulling plate; 43. locking the nut; 44. the end of the stud; 5. a bucket connecting block; 51. connecting the round rod; 52. side concave blocks; 53. a cylinder body fixing block; 54. fixing the bolt; 6. an inner side chain wheel mounting plate; 61. a corner limiting groove; 62. a movable adjusting plate; 63. a corner stud ring; 7. a metal shackle; 71. a side screw; 72. a metal long plate; 73. a rope through hole; 74. a bottom fixing block; 8. a metal frame shell; 81. corner slotted holes; 82. a square frame shell; 83. an outer connecting plate; 84. a middle through hole; 9. riding wheel installation block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, the present invention provides a technical solution: an adjustable frame for an excavator comprises a limiting fixed ring seat 2 and a metal frame shell 8, wherein the limiting fixed ring seat 2 is fixedly arranged at the upper end position of the metal frame shell 8, a middle limiting shaft lever 1 is arranged in the middle of the joint of the limiting fixed ring seat 2 and the metal frame shell 8, a metal pull ring 7 is arranged at the rear end of the metal frame shell 8, a bucket connecting block 5 is arranged at the front end of the metal frame shell 8, inner side chain wheel mounting plates 6 are arranged at two ends of the metal frame shell 8, an outer side chain wheel mounting plate 3 is arranged at the outer end of the inner side chain wheel mounting plate 6, the inner side chain wheel mounting plate 6 and the outer side chain wheel mounting plate 3 are fixedly connected through a screw pull plate 4, a riding wheel mounting block 9 is arranged at the upper ends of the inner side chain wheel mounting plate 6 and the outer side chain wheel mounting plate 3, when in use, the metal frame shell 8 is fixed by the middle limiting shaft lever 1 in the limiting fixed ring seat 2, the metal frame shell 8 is conveniently connected with an external shovel head for use due to the bucket connecting block 5 at the front end, and the metal frame shell 8 is convenient to hoist, place and use due to the metal pull hook ring 7 at the rear end;

the outer side chain wheel mounting plate 3 comprises a corner groove 31, a telescopic limiting rod 32, a fixed stud sleeve 33 and a mounting plate shell 34, the upper end of the inner side of the mounting plate shell 34 is provided with the telescopic limiting rod 32, the outer side of the telescopic limiting rod 32 is positioned on the mounting plate shell 34 and is provided with the corner groove 31, the corner of the upper end of the mounting plate shell 34 is provided with the fixed stud sleeve 33, the telescopic limiting rod 32 is fixedly connected on the inner side chain wheel mounting plate 6, the fixed stud sleeve 33 is connected on the screw pulling plate 4, the mounting plate shell 34 of the outer side chain wheel mounting plate 3 is fixedly connected on the inner side chain wheel mounting plate 6 through the telescopic limiting rod 32 in a sleeved mode, so that the mounting plate shell 34 is convenient to telescopically adjust and change the distance inside the inner side chain wheel mounting plate 6 due to the telescopic limiting rod 32, thereby effectively changing the gap space between the corner groove 31 and the inner side chain wheel mounting plate 6, and being convenient to adjust and mount according to the sizes of a chain wheel and a guide wheel, the installation is more convenient, and after the adjustment, the fixed stud sleeve 33 is fixedly connected to the screw pulling plate 4, so that the installation plate shell 34 and the inner side chain wheel installation plate 6 cannot slide to change the distance in the use process due to the pulling and fixing of the screw pulling plate 4, and the installation and the use are more stable;

the limiting fixing ring seat 2 is fixedly connected to the middle position of the upper end of the metal frame shell 8 in a welding mode, the limiting fixing ring seat 2 is communicated with the inside of the metal frame shell 8, and the limiting fixing ring seat 2 is fixedly connected to the middle position of the upper end of the metal frame shell 8 in a welding mode, so that the limiting fixing ring seat cannot fall off when in use, and the limiting fixing ring seat 2 is communicated with the inside of the metal frame shell 8, so that the limiting fixing ring seat is convenient to connect and use;

the inner side chain wheel mounting plate 6 and the outer side chain wheel mounting plate 3 are fixedly connected in a sleeved mode, the outer sides of the connecting positions of the inner side chain wheel mounting plate 6 and the outer side chain wheel mounting plate 3 are located on the same straight line, the inner side chain wheel mounting plate 6 and the outer side chain wheel mounting plate 3 are fixedly connected in a sleeved mode, so that the adjusting and the changing are convenient to use, and the outer sides of the connecting positions are located on the same straight line, so that obstruction cannot occur in the using process;

as shown in fig. 1, 3 and 5, the bucket connecting block 5 includes a connecting round rod 51, a side concave block 52, a cylinder fixing block 53 and a fixing bolt 54, the cylinder fixing block 53 is arranged in the middle of the inside of the connecting round rod 51, the side concave block 52 is arranged on the connecting round rod 51 on the outer side of the cylinder fixing block 53, the fixing bolt 54 is arranged on the inner side of the side concave block 52, the side concave block 52 is fixedly connected to the metal frame shell 8, the side concave block 52 of the bucket connecting block 5 is fixedly connected to the metal frame shell 8 in a welding manner, so that the side concave block 52 cannot fall off when in use, the side concave block 52 is convenient to use with an external bucket connecting rod due to the internal fixing bolt 54, and the connecting round rod 51 is convenient to connect with an external bucket cylinder for use due to the cylinder fixing block 53 in the middle of the inside, so that the bucket connecting round rod is more convenient and convenient to use;

the metal shackle 7 comprises a side screw 71, a metal long plate 72, a rope through hole 73 and a bottom fixed block 74, the metal long plate 72 is arranged in the middle of the upper end of the bottom fixed block 74, the rope through hole 73 is formed in the inner side of the metal long plate 72, the side screw 71 is arranged on the bottom fixed block 74 on the outer side of the metal long plate 72, the bottom fixed block 74 is fixedly connected to the metal frame shell 8 through the side screw 71, and the bottom fixed block 74 of the metal shackle 7 is fixedly connected to the metal frame shell 8 through the side screw 71, so that the bottom fixed block 74 is convenient to mount, fix and use, the metal long plate 72 cannot fall off when being pulled, and when being pulled, the metal long plate 72 can conveniently penetrate through the rope through hole 73 inside to pull and use, and therefore the metal shackle is convenient to lift, place and use;

as shown in fig. 1, 4 and 6, the screw pulling plate 4 includes a metal stud 41, a clip-shaped adjusting pulling plate 42, a locking nut 43 and a stud end 44, the metal studs 41 are disposed at two ends of the inner side of the clip-shaped adjusting pulling plate 42, the locking nut 43 is disposed above the joint of the clip-shaped adjusting pulling plate 42 and the metal stud 41, the stud end 44 is disposed at the lower end of the metal stud 41, and the two metal studs 41 of the screw pulling plate 4 are respectively rotatably fixed on the inner side sprocket mounting plate 6 and the outer side sprocket mounting plate 3 through the stud ends 44, so that the metal studs 41 are convenient to mount and fix for use, after fixing, the metal studs 41 effectively change the gap position of the two metal studs 41 due to the gap between the clip-shaped adjusting pulling plate 42, so that the gap between the inner side sprocket mounting plate 6 and the outer side sprocket mounting plate 3 at the lower end of the metal stud 41 can be adjusted, after adjustment of the metal studs 41, the metal stud 41 is effectively locked and fixed due to the locking nuts 43 on the upper peripheral side of the double-bent adjusting pull plate 42, so that the inner side chain wheel mounting plate 6 and the outer side chain wheel mounting plate 3 are effectively fixed after adjustment;

the inner side chain wheel mounting plate 6 comprises a corner limiting groove 61, a movable adjusting plate 62 and a corner stud ring 63, the corner of the outer end of the movable adjusting plate 62 is provided with the corner limiting groove 61, the corner stud ring 63 is arranged on the upper end corner of the movable adjusting plate 62, the movable adjusting plate 62 is fixedly connected on the metal frame shell 8, the corner stud ring 63 is fixedly connected on the screw pulling plate 4, the movable adjusting plate 62 of the inner side chain wheel mounting plate 6 is fixedly connected on the metal frame shell 8 in a welding way, so that the movable adjusting plate 62 cannot fall off when in use, the movable adjusting plate 62 enables the outer side chain wheel mounting plate 3 to be conveniently pulled and changed due to the through hole on the inner side of the upper end, after the change, the corner stud ring 63 of the movable adjusting plate 62 is fixedly connected on the screw pulling plate 4, so that the movable adjusting plate 62 is fixed due to the screw pulling plate 4, and the movable adjusting plate 62 cannot movably change the position after the fixing, thus being convenient for placement and use;

as shown in fig. 1, 7 and 8, the metal frame shell 8 includes a corner slot hole 81, a square frame shell 82, an outer side connecting plate 83 and a middle through hole 84, the middle of the inside of the square frame shell 82 is provided with the middle through hole 84, the symmetrical outer end of the square frame shell 82 is provided with the outer side connecting plate 83, the middle of the outer side connecting plate 83 is provided with the corner slot hole 81, the outer side connecting plate 83 is fixedly connected to the inner side chain wheel mounting plate 6, the square frame shell 82 of the metal frame shell 8 is fixedly connected to the inner side chain wheel mounting plate 6 through the outer side connecting plate 83 in a welding manner, so that the square frame shell 82 cannot fall off in use, the outer side connecting plate 83 is more stable and firm in welding with the inner side chain wheel mounting plate 6 due to the inner side corner slot hole 81, and the square frame shell 82 is convenient for connecting, fixing and mounting use due to the middle through hole 84 area of the square frame shell 82;

spacing fixed ring seat 2 includes inboard lantern ring 21, fixed outer loop 22 and inside appearance chamber 23, the inboard a week of fixed outer loop 22 is provided with inboard lantern ring 21, be provided with inside appearance chamber 23 in the middle of the inside of inboard lantern ring 21, fixed outer loop 22 fixed connection is on metal frame shell 8, the fixed outer loop 22 welded fastening of spacing fixed ring seat 2 is connected on metal frame shell 8, the installation of being convenient for like this is fixed to be used, inboard lantern ring 21 is because of the region of inside appearance chamber 23, make middle spacing axostylus axostyle 1 be convenient for the installation fixed to be used.

The working principle is as follows: when using, the metal frame shell 8 is convenient for the spacing rotation to use because of the middle spacing axostylus axostyle 1 in the middle of spacing fixed ring seat 2 inside like this, make the fuselage of excavator rotate more stably, when installation sprocket, riding wheel and guide wheel, personnel fix the riding wheel in inboard sprocket mounting panel 6 and outside sprocket mounting panel 3 upper end riding wheel installation piece 9, and sprocket and guide wheel are then fixed in the both ends clearance groove of inboard sprocket mounting panel 6 and outside sprocket mounting panel 3, effective spacing fixing like this. The outer side chain wheel mounting plate 3 is composed of a corner groove 31, a telescopic limiting rod 32, a fixed screw sleeve 33 and a mounting plate shell 34, the mounting plate shell 34 of the outer side chain wheel mounting plate 3 is fixedly connected on the inner side chain wheel mounting plate 6 in a sleeved mode through the telescopic limiting rod 32, the mounting plate housing 34 is thus conveniently telescopically adjustable within the inner sprocket mounting plate 6 to change the spacing due to the telescopic limiting rod 32, thereby effectively changing the gap space between the corner groove 31 and the inner side chain wheel mounting plate 6, being convenient for adjusting and mounting according to the sizes of the chain wheel and the guide wheel, leading the mounting to be more convenient, after adjustment, because the fixed stud sleeve 33 is fixedly connected to the screw pulling plate 4, because the screw pulling plate 4 is pulled and fixed, so that the mounting plate housing 34 and the inside sprocket mounting plate 6 do not slide to change the distance when in use, and are more stable when in installation and use.

After the inner chain wheel mounting plate 6 and the outer chain wheel mounting plate 3 are adjusted, the screw pulling plate 4 is effectively pulled and fixed, the screw pulling plate 4 is composed of metal studs 41, a bent adjusting pulling plate 42, locking nuts 43 and stud ends 44, the two metal studs 41 of the screw pulling plate 4 are respectively and rotatably fixed on the inner chain wheel mounting plate 6 and the outer chain wheel mounting plate 3 through the stud ends 44, so that the metal studs 41 are convenient to install and fix, after the metal studs 41 are fixed, the gap positions of the two metal studs 41 are effectively changed due to the bent adjusting pulling plate 42, so that the gap positions of the inner chain wheel mounting plate 6 and the outer chain wheel mounting plate 3 at the lower end of the metal studs 41 can be adjusted, after the metal studs 41 are adjusted, the metal studs 41 are effectively locked and fixed due to the bent adjusting pulling plate 42 upper circumferential locking nuts 43, so that the inner sprocket mounting plate 6 and the outer sprocket mounting plate 3 are effectively fixed after adjustment.

The metal frame shell 8 is convenient to be connected with an external shovel head for use due to the bucket connecting block 5 at the front end, and the metal frame shell 8 is convenient to lift, place and use due to the metal pull hook ring 7 at the rear end. The bucket connecting block 5 is through connecting the round bar 51, the concave piece 52 of side, cylinder body fixed block 53 and fixing bolt 54 are constituteed, the concave piece 52 welded fastening of side of bucket connecting block 5 is connected on metal frame shell 8, the concave piece 52 of side can not drop when using like this, the concave piece 52 of side is because of inside fixing bolt 54, thereby be convenient for use with outside bucket connecting rod, connect the round bar 51 because of inside middle cylinder body fixed block 53, be convenient for like this and connect the use with outside bucket jar, make convenient and convenient more when using.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.