Rotary excavating assembly and excavating equipment with same

Abstract

The invention relates to the technical field of small metal parts for excavating parts, in particular to a rotary excavating assembly and excavating equipment with the rotary excavating assembly, which comprises a bucket rod mounted on an excavator body, a rotary unit mounted at the tail end of the bucket rod, and an excavating bucket cylinder group mounted at the tail end of the rotary unit. The tail end of the excavator bucket cylinder set is installed on the rear side wall of the excavator bucket assembly, and the excavator bucket assembly comprises an excavator bucket piece located at the front end and a mixing and stirring piece located at the rear end. After installation and positioning are completed, a movable arm arranged on the excavator can be used for driving to complete position adjustment and locking of the inclination angle of the bucket rod; the first slewing bearing and the second slewing bearing designed in the rotary excavating assembly are matched with a movable arm arranged on an excavator, so that control over multi-angle position adjusting and locking of the rotary excavating assembly can be completed, and adjusting and positioning of excavating, mixing and stirring, foundation pit rolling and foundation pit side wall reaming are effectively completed.

Description

Technical Field

[0001] The present invention relates to the technical field of small metal parts for excavating components, in particular to a rotary excavating assembly and excavating equipment having the assembly. Background Art

[0002] Excavation equipment is a type of mechanical equipment used for digging and extracting soil, ore or other materials. Traditional excavation equipment is mainly excavators, and its main structure includes power unit, boom, arm, shovel bucket, as well as slewing mechanism, transmission mechanism, walking mechanism and other main structures.

[0003] Among them, the shovel tooth bucket, as a small metal part used for excavation, plays a key role in the excavation process. After searching, a patent document with patent application number CN202020255061.3 and IPC classification number E02F9 / 28 (20060101) discloses a shovel tooth excavation bucket that can easily crush soil and rocks. Its structure includes a bucket, shovel teeth, a tooth seat, a slot, a block, a slot, a stone crushing knife, a soil crushing tooth, a threaded rod, a rotating part, a nut block, an L-shaped rod, a block, a twist block, and a shovel plate as main components.

[0004] It can be seen that the above-mentioned excavation bucket realizes the fixation and rapid replacement of the shovel teeth by setting a moving mechanism and cooperating with a screw block. However, the rear end of the entire shovel teeth still uses the traditional bucket structure. This structural form can only realize downward tilted excavation of the ground when cooperating with the excavation components to realize the excavation operation. This type of bucket structure has difficulties in coping with the working conditions where a small-sized foundation pit needs to be dug out on the ground (for example: in the forestry field, it is necessary to excavate a circular foundation pit for transplanting, in the construction field, it is necessary to excavate a square pre-buried casting foundation pit or a small drainage ditch foundation pit, etc.). When relying solely on an excavator to operate, the amount of soil in the foundation pit is large and subsequent cooperation with manual or other machinery is required to complete the cleaning. The cleaning difficulty is high and the cleaning efficiency is low during the entire cleaning operation.

[0005] Based on this, the present invention specifically proposes a rotating excavation assembly that can cooperate with excavation equipment to achieve flexible excavation construction and an excavation equipment equipped with the assembly, so as to better solve the problems existing in the prior art. Summary of the invention

[0006] The present invention is to solve one of the above-mentioned technical problems, and the technical solution adopted is: a rotating excavation assembly, including a bucket arm installed on an excavator body, a slewing unit installed at the end of the bucket arm, a bucket cylinder group installed at the end of the slewing unit, and the end of the bucket cylinder group installed on the rear side wall of the bucket assembly. The bucket assembly includes a bucket piece located at the front end and a mixing piece located at the rear end, the interior of the mixing piece is connected to the excavation cavity of the bucket piece, and the bucket assembly is in an excavation state and a stirring state when working.

[0007] In any of the above schemes, it is preferred that the slewing unit includes a first slewing bearing and a second slewing bearing, the first fixed portion of the first slewing bearing is fixedly installed on the terminal end of the boom, the first rotating portion of the first slewing bearing is fixedly connected to the second fixed portion of the second slewing bearing through a linkage plate, the second rotating portion of the second slewing bearing is connected to the bucket cylinder group, and the central axis of the first rotating portion of the first slewing bearing is perpendicular to the central axis of the second rotating portion of the first slewing bearing.

[0008] In any of the above schemes, it is preferred that at least one telescopic cylinder is fixedly installed on the outer side wall of the second fixed part of the second slewing bearing, and a locking plate is fixedly installed on the end of the piston rod of the telescopic cylinder, and the end of the locking plate abuts against the outer side wall of the first rotating part of the first slewing bearing in the working state.

[0009] In any of the above schemes, it is preferred that the bucket member includes a bucket body, a digging chamber is arranged inside the bucket body, the mixing member is arranged on the rear side of the digging chamber, the rear end of the digging chamber is connected with the mixing chamber of the mixing member, a linkage shaft is installed inside the digging chamber, both ends of the linkage shaft are respectively movable to the outside of the digging chamber, one end of the linkage shaft is connected to the output end of a driving transmission member, and the input end of the driving transmission member is installed on the bucket body.

[0010] In any of the above schemes, it is preferred that a plurality of digging teeth are bolted and fixedly installed on the digging portion at the bottom of the front end of the bucket body at intervals in sequence along the length direction thereof.

[0011] In any of the above schemes, it is preferred that the other end of the linkage shaft is connected to a foundation pit rolling unit, and in a working state, the bottom of the foundation pit rolling unit abuts against the bottom of the currently excavated foundation pit and is used to complete roller compaction of its bottom.

[0012] In any of the above schemes, it is preferred that the foundation pit rolling unit includes a mounting frame fixedly mounted on the corresponding end face of the bucket body, a rolling shaft is installed in the mounting cavity of the mounting frame, both ends of the rolling shaft are respectively movably extended to the outside of the mounting cavity, a driven bevel gear is coaxially fixedly mounted on the outer wall of the rolling shaft, a first compacting steel cylinder and a second compacting steel cylinder are respectively mounted on the outer walls of the rolling shaft on both sides of the driven bevel gear, the first compacting steel cylinder and the second compacting steel cylinder have the same outer diameter, and a driving bevel gear meshing with the driven bevel gear is fixedly mounted on the end of the linkage shaft.

[0013] In any of the above schemes, it is preferred that the driving transmission member includes a fixing frame fixedly mounted on the corresponding end side wall of the bucket body, a driving motor is fixedly mounted in the mounting cavity of the fixing frame, a transmission pulley is mounted at the output shaft of the driving motor, the end of the central axis of the transmission pulley is coaxially fixedly connected to the mixing element, a driven pulley is arranged on one side of the transmission pulley, the driven pulley is fixedly mounted on the end of the linkage shaft, and a toothed belt is installed between the transmission pulley and the driven pulley.

[0014] In any of the above schemes, it is preferred that the mixing element includes a mixing chamber installed on the rear side of the digging chamber of the bucket body, a mixing chamber connected to the digging chamber is arranged inside the mixing chamber, a stirring shaft is arranged inside the mixing chamber, both ends of the stirring shaft are movably extended to the outside of the mixing chamber, one end of the stirring shaft is fixedly connected to the central axis of the transmission pulley, and a plurality of stirring teeth are fixedly installed on the outer wall of the stirring shaft at intervals along its axial direction.

[0015] In any of the above schemes, it is preferred that the bucket cylinder group includes a plurality of first cylinder arms and second cylinder arms arranged at intervals, the front end of each of the first cylinder arms is movably hinged on the first rear ear seat fixedly connected to the outer wall of the rear side of the mixing bin, the front end of each of the second cylinder arms is movably hinged on the second rear ear seat fixedly connected to the outer wall of the rear side of the mixing bin, the rear end of each of the first cylinder arms is movably hinged on the first front ear seat fixedly connected to the second rotating part of the second slewing bearing, and the front end of each of the second cylinder arms is movably hinged on the second front ear seat fixedly connected to the second rotating part of the second slewing bearing.

[0016] The present invention also provides an excavating device having a rotating excavating assembly, wherein the excavating device comprises the rotating excavating assembly as described above.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The rotary excavation assembly of the present invention can be directly installed on the boom of an existing excavator, which is convenient for completing the installation and positioning of the entire structure; after the installation and positioning is completed, the boom can be driven by the excavator to complete the adjustment and locking of the inclination angle of the boom; the first slewing bearing and the second slewing bearing designed in the present application can be used in conjunction with the boom configured on the excavator to complete the control of the multi-angle adjustment and locking of the rotary excavation assembly, and effectively complete the adjustment and positioning of excavation, mixing, foundation pit rolling and foundation pit side wall expansion.

[0018] 2. In the present invention, the first slewing bearing and the second slewing bearing are locked during excavation, and the inclination angle of the bucket member during excavation is adjusted only by controlling the extension and contraction of the bucket cylinder group, and the inclination angle of the digging rod is controlled by the external excavator body to realize the downward opening of the excavation cavity. The bucket member uses the various excavation teeth on the bucket body to dig downward into the ground or the earth pile to realize the conventional excavation function.

[0019] 3. After the excavation of the agglomerated soil pile is completed, the present invention can directly send the agglomerated materials entering the excavation chamber into the mixing chamber and use the mixing element to quickly crush the agglomerated materials inside. After the processing is completed, the rotary excavation assembly is directly used to transfer the materials downstream without the need to enter the crushing equipment to complete the crushing operation, which effectively reduces the number of material turnovers and improves the transfer efficiency of materials after excavation.

[0020] 4. After the ground excavation is completed by using the rotary excavation assembly of the present invention, a foundation pit will be formed on the ground. When there are processing requirements for the size of the foundation pit or the inner wall of the foundation pit, the steering adjustment of the first slewing bearing and the second slewing bearing of the present invention and the adjustment of the inclination angle of the bucket arm can control the adjustment of the bucket body on the vertical direction surface, so that the bucket body is in a vertical state. At this time, the excavating teeth at the end of the bucket body can be in a top-down spacing state, and are pressed against the bottom of the foundation pit under the action of the foundation pit rolling unit. The first slewing bearing is continuously controlled to rotate and the second slewing bearing is locked. At this time, the center line of the rotating part of the first slewing bearing is used as the center of the circle, and the excavating teeth are used as scrapers for scraping the side walls of the foundation pit, thereby completing the continued fine-tuning of the inner wall of the foundation pit. While fine-tuning the side walls of the foundation pit, the compaction treatment of the bottom of the foundation pit is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn according to the actual scale.

[0022] Figure 1 It is a schematic diagram of the main structure of the present invention in a foundation pit treatment state.

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the partial top view structure.

[0024] Figure 3 It is a schematic diagram of the structure of the mixing element of the present invention when it is in working state.

[0025] Figure 4 It is a schematic diagram of the internal cross-sectional structure of the bucket member of the present invention.

[0026] Figure 5 It is a schematic diagram of the internal partial structure of the mixing element of the present invention.

[0027] In the figure, 1, bucket rod; 2, bucket member; 201, digging chamber; 202, bucket body; 203, digging teeth; 3, mixing member; 301, mixing chamber; 302, mixing chamber; 303, stirring shaft; 304, stirring teeth; 4, first slewing bearing; 401, first rotating part; 402, first fixed part; 5, second slewing bearing; 501, second fixed part; 502, second rotating part; 6, linkage plate; 7, telescopic cylinder; 8, locking Disc; 9, fixed frame; 10, driving motor; 11, driving pulley; 12, driven pulley; 13, toothed belt; 14, first cylinder arm; 15, second cylinder arm; 16, first rear ear seat; 17, second rear ear seat; 18, mounting frame; 19, roller shaft; 20, driven bevel gear; 21, first compacting steel cylinder; 22, second compacting steel cylinder; 23, driving bevel gear; 24, foundation pit; 25, first front ear seat; 26, second front ear seat. DETAILED DESCRIPTION

[0028] The following is a detailed description of the embodiments of the technical solution of the present invention in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention. Figure 1-Figure 5 as shown in .

[0029] Embodiment 1: A rotary excavation assembly comprises a boom 1 mounted on an excavator body, a slewing unit is mounted at the end of the boom 1, a bucket cylinder group is mounted at the end of the slewing unit, the end of the bucket cylinder group is mounted on the rear side wall of the bucket assembly, the bucket assembly comprises a bucket piece 2 at the front end and a mixing piece 3 at the rear end, the interior of the mixing piece 3 is connected to the excavation cavity 201 of the bucket piece 2, and the bucket assembly has an excavation state and a stirring state when working.

[0030] It should be noted that the rotary excavation assembly relies on the existing boom 1 to achieve connection with the excavator body. When the entire assembly is working, the slewing unit can cooperate with the adjustment of the inclination angle of the boom 1 to achieve rotational adjustment on different planes. This adjustment method can adjust the inclination angle of the bucket 2 and the mixing element 3 when they are in the downward excavation state, and at the same time can control the axial rotation of the bucket 2 to achieve the vertical adjustment of the bucket 2, thereby realizing excavation and foundation pit finishing (i.e., comprehensive treatment of scraping the side walls of the foundation pit and compacting the bottom of the foundation pit).

[0031] In any of the above schemes, it is preferred that the slewing unit includes a first slewing bearing 4 and a second slewing bearing 5, the first fixed portion 402 of the first slewing bearing 4 is fixedly installed on the terminal end of the boom 1, the first rotating portion 401 of the first slewing bearing 4 is fixedly connected to the second fixed portion 501 of the second slewing bearing 5 through a linkage plate 6, the second rotating portion 502 of the second slewing bearing 5 is connected to the bucket cylinder group, and the central axis of the first rotating portion 401 of the first slewing bearing 4 and the central axis of the second rotating portion 502 of the first slewing bearing 4 are perpendicular to each other.

[0032] When the slewing unit is working, the position adjustment control of the bucket assembly is realized by the independent operation of the first slewing bearing 4 and the second slewing bearing 5 and their mutual cooperation. Since the central axis of the first rotating part 401 of the first slewing bearing 4 and the central axis of the second rotating part 502 of the first slewing bearing 4 are perpendicular to each other, the bucket assembly can be adjusted at multiple three-dimensional angles, thereby improving its free adjustment range.

[0033] In any of the above schemes, it is preferred that at least one telescopic cylinder 7 is fixedly installed on the outer side wall of the second fixed part 501 of the second slewing bearing 5, and a locking plate 8 is fixedly installed on the end of the piston rod of the telescopic cylinder 7, and the end of the locking plate 8 abuts against the outer side wall of the first rotating part 401 of the first slewing bearing 4 in the working state.

[0034] Considering the firmness of the first slewing bearing 4 and the second slewing bearing 5 when locked, the locking plate 8 is pressed against the outer wall of the first rotating part 401 of the first slewing bearing 4 by the extension and contraction of the telescopic cylinder 7, thereby ensuring the relative stability of the two.

[0035] In any of the above schemes, it is preferred that the bucket member 2 includes a bucket body 202, an excavation chamber 201 is arranged inside the bucket body 202, the mixing member 3 is arranged on the rear side of the excavation chamber 201, the rear end of the excavation chamber 201 is connected with the mixing chamber 301 of the mixing member 3, and a linkage shaft 202 is installed inside the excavation chamber 201, both ends of the linkage shaft 202 are respectively movable to the outside of the excavation chamber 201, one end of the linkage shaft 202 is connected to the output end of a driving transmission member, and the input end of the driving transmission member is installed on the bucket body 202.

[0036] In any of the above schemes, it is preferred that a plurality of digging teeth 203 are bolted and fixedly installed on the digging portion at the bottom of the front end of the bucket body 202 at intervals in sequence along its length direction.

[0037] The bucket body 202 of the bucket member 2 of the present invention uses the digging teeth 203 at the front end to achieve downward digging, thereby improving the digging effect. After the digging is completed, the excavated active soil directly enters the digging cavity 201. By further adjusting the inclination angle of the bucket member 2, the mixing member 3 can be located at the bottom. At this time, the active soil will enter the mixing cavity 301 of the mixing member 3 under the action of gravity, and complete the sufficient mixing and crushing process in the mixing cavity 301.

[0038] The mixing element 3 is mainly driven by the power of the driving transmission element when working, and further mixes the active soil after excavation when the driving transmission element is working, so as to achieve the purpose of directly eliminating the need for existing mixing equipment.

[0039] In any of the above schemes, it is preferred that the other end of the linkage shaft 202 is connected to a foundation pit rolling unit, and in the working state, the bottom of the foundation pit rolling unit abuts against the bottom of the currently excavated foundation pit 24 and is used to complete roller compaction of its bottom.

[0040] The linkage shaft 202 is mainly used to receive the power of the driving transmission member and rely on its power to drive the operation of the foundation pit rolling unit, so as to achieve the purpose of compacting the bottom of the foundation pit by relying on the foundation pit rolling unit.

[0041] In any of the above schemes, it is preferred that the driving transmission member includes a fixing frame 9 fixedly mounted on the corresponding end side wall of the bucket body 202, a driving motor 10 is fixedly mounted in the mounting cavity of the fixing frame 9, a driving pulley 11 is mounted at the output shaft of the driving motor 10, the end of the central axis of the driving pulley 11 is coaxially fixedly connected to the mixing element 3, a driven pulley 12 is arranged on one side of the driving pulley 11, the driven pulley 12 is fixedly mounted on the end of the linkage shaft 202, and a toothed belt 13 is installed between the driving pulley 11 and the driven pulley 12.

[0042] The driving transmission component relies on the driving motor 10 as the single power. When the driving transmission component is working, it can not only drive the mixing element 3, but also rely on the comprehensive operation of the driving pulley 11, the toothed belt 13, and the driven pulley 12 to transmit the power to the foundation pit rolling unit using the linkage shaft 202, thereby realizing the effect of single power and dual drive.

[0043] In any of the above schemes, it is preferred that the mixing element 3 includes a mixing chamber 302 which is cooperatively installed on the rear side of the digging chamber 201 of the bucket body 202, and a mixing chamber 301 connected to the digging chamber 201 is arranged inside the mixing chamber 302, and a stirring shaft 303 is arranged inside the mixing chamber 301, and both ends of the stirring shaft 303 are respectively movable to the outside of the mixing chamber 301, one end of the stirring shaft 303 is fixedly connected to the central axis of the transmission pulley 11, and a plurality of stirring teeth 304 are fixedly installed on the outer wall of the stirring shaft 303 at intervals along its axial direction.

[0044] The mixing element 3 mainly relies on the mixing chamber 301 inside the mixing bin 302 to receive the live soil transported from the adjacent excavation chamber 201. After the live soil enters the mixing chamber 301, it relies on the mixing and stirring action of the stirring shaft 303 and the stirring teeth 304 to achieve sufficient mixing and breaking, effectively removing the lumps in the excavated live soil, effectively meeting the needs of the use scenarios with requirements on the particle size of the excavated soil, avoiding the subsequent process of transferring to the mixing equipment, effectively simplifying the live soil processing process, reducing the frequent transfer between equipment, and reducing the problem of congestion in the narrow construction site caused by the arrangement of multiple equipment.

[0045] In any of the above schemes, it is preferred that the bucket cylinder group includes a plurality of first cylinder arms 14 and second cylinder arms 15 arranged at intervals, the front end of each first cylinder arm 14 is movably hinged on the first rear ear seat 16 fixedly connected to the rear outer wall of the mixing chamber 302, the front end of each second cylinder arm 15 is movably hinged on the second rear ear seat 17 fixedly connected to the rear outer wall of the mixing chamber 302, the rear end of each first cylinder arm 14 is movably hinged on the first front ear seat 25 fixedly connected to the second rotating part of the second slewing bearing 5, and the front end of each second cylinder arm 15 is movably hinged on the second front ear seat 26 fixedly connected to the second rotating part 502 of the second slewing bearing 5.

[0046] Both ends of the first cylinder arm 14 and the second cylinder arm 15 in the bucket cylinder group are in a hinged state and there is a certain inclination angle between the two. By controlling the extension and retraction of the first cylinder arm 14 and the second cylinder arm 15, the inclination angle of the bucket assembly can be controlled, effectively ensuring that the adjustment requirements during excavation operations are met.

[0047] The present invention also provides an excavating device having a rotating excavating assembly, wherein the excavating device comprises the rotating excavating assembly as described above.

[0048] Embodiment 2: In any of the above schemes, it is preferred that the foundation pit rolling unit includes a mounting frame 18 fixedly mounted on the corresponding end face of the bucket body 202, and a rolling shaft 19 is movably mounted in the mounting cavity of the mounting frame 18, and both ends of the rolling shaft 19 are movably extended to the outside of the mounting cavity, and a driven bevel gear 20 is coaxially fixedly mounted on the outer wall of the rolling shaft 19, and a first compacting steel cylinder 21 and a second compacting steel cylinder 22 are respectively mounted on the outer walls of the rolling shaft 19 on both sides of the driven bevel gear 20, and the outer diameters of the first compacting steel cylinder 21 and the second compacting steel cylinder 22 are the same, and a driving bevel gear 23 meshing with the driven bevel gear 20 is fixedly mounted at the end of the linkage shaft 202.

[0049] It should be noted that the foundation pit rolling unit is mainly used to complete the operation processing when there are construction requirements for earthwork foundation pit construction scenes. It relies on the roller shaft 19 to drive the entire first compaction steel cylinder 21 and the second compaction steel cylinder 22 to rotate, and the rotation of the roller shaft 19 mainly utilizes the transmission of the driving bevel gear 23 and the driven bevel gear 20 to realize the transmission of the power of the upstream driving motor 10 received by the linkage shaft 202 to the downstream. During the rolling process of the first compaction steel cylinder 21 and the second compaction steel cylinder 22, they are placed inside the foundation pit and pressed against the bottom of the foundation pit, so that the compaction of the ground at the bottom of the foundation pit can be completed.

[0050] In addition, considering that when treating the foundation pit, it is necessary not only to treat its bottom but also to scrape and clean the inner wall of the foundation pit with a certain depth, while ensuring the pressure of the first compaction steel cylinder 21 and the second compaction steel cylinder 22, the rotating part of the first slewing bearing 4 is controlled as the center of the circle, and the length from each digging tooth 203 in the set state to the center of the circle can be used as the radius. Controlling the rotation of the rotating part of the first slewing bearing 4 can enable the digging teeth 203 to scrape the inner wall of the foundation pit, and controlling the current extension length of the bucket cylinder group according to the current size of the inner wall of the foundation pit, so as to ensure that the digging teeth 203 can always be pressed against the inner wall of the foundation pit for scraping.

[0051] Specific working principle: The rotary excavation assembly in the present invention relies on the existing boom 1 to achieve connection with the excavator body. When the entire assembly is working, the slewing unit can cooperate with the adjustment of the inclination angle of the boom 1 to achieve rotational adjustment on different planes. This adjustment method can adjust the inclination angle of the bucket 2 and the mixing member 3 when they are in the downward excavation state, and at the same time can control the axial rotation of the bucket 2 to achieve the vertical adjustment of the bucket 2, thereby realizing excavation and foundation pit finishing (i.e., comprehensive treatment of scraping the side walls of the foundation pit and compacting the bottom of the foundation pit).

[0052] During specific operation, the slewing unit relies on the independent operation of the first slewing bearing 4 and the second slewing bearing 5 and their cooperation to realize the position adjustment control of the bucket assembly. Since the central axis of the first rotating part 401 of the first slewing bearing 4 and the central axis of the second rotating part 502 of the first slewing bearing 4 are perpendicular to each other, the bucket assembly can be adjusted at multiple three-dimensional angles, thereby improving its free adjustment range.

[0053] When excavating, the bucket body 202 of the bucket member 2 uses the excavation teeth 203 at the front end to dig downward, thereby improving the excavation effect. After the excavation is completed, the excavated active soil directly enters the excavation chamber 201. By continuing to adjust the inclination angle of the bucket member 2, the mixing member 3 can be located at the bottom. At this time, the active soil will enter the mixing chamber 301 of the mixing member 3 under the action of gravity, and will be fully crushed in the mixing chamber 301. In addition, the mixing member 3 mainly relies on the power of the driving transmission member when working, and further stirs the active soil after the excavation process when the driving transmission member is working, thereby directly eliminating the need for existing stirring equipment.

[0054] From the above, it can be seen that the rotary excavation assembly in the present invention can be directly installed on the boom 1 of an existing excavator, which is convenient for completing the installation and positioning of the entire structure; after the installation and positioning is completed, the boom 1 can be driven by the excavator to adjust and lock the inclination angle; the first slewing bearing 4 and the second slewing bearing 5 designed in the present application can be used in conjunction with the boom configured on the excavator to complete the control of the multi-angle adjustment and locking of the rotary excavation assembly, and effectively complete the adjustment and positioning of excavation, mixing, foundation pit rolling and foundation pit side wall expansion; when excavating, the first slewing bearing 4 and the second slewing bearing 5 are locked, and the inclination angle of the bucket piece 2 during excavation is adjusted only by controlling the telescopic adjustment of the bucket cylinder group, and the control of the inclination angle of the bucket piece 2 by the external excavator body is achieved to realize the downward opening of the excavation cavity 201, and the bucket piece 2 uses the various excavation teeth 203 on the bucket body 202 to realize downward excavation of the ground or the earth pile, so as to realize the conventional excavation function.

[0055] After the excavation of the agglomerated soil pile is completed, the agglomerated materials entering the excavation chamber 201 can be directly sent into the mixing chamber 301 and the agglomerated materials inside can be quickly crushed by using the mixing element 3. After the processing is completed, the materials can be directly transferred downstream by using the rotary excavation assembly, and there is no need to enter the crushing equipment to complete the crushing operation, which effectively reduces the number of material turnovers and improves the transfer efficiency of materials after excavation. When the rotary excavation assembly of the present invention is used to complete the ground excavation, a foundation pit will be formed on the ground. When there are processing requirements for the size of the foundation pit or the inner wall of the foundation pit, the first slewing bearing 4 and the second slewing bearing 5 of the present invention can be used. The steering adjustment and the adjustment of the inclination angle of the bucket arm 1 can control the adjustment of the bucket body 202 in the vertical direction, so that the bucket body 202 is in a vertical state. At this time, the digging teeth 203 at the end of the bucket body 202 can be in a top-down spacing state, and are pressed against the bottom of the foundation pit under the action of the foundation pit rolling unit. The first slewing bearing 4 continues to be controlled to rotate and the second slewing bearing 5 is locked. At this time, the center line of the rotating part of the first slewing bearing 4 is used as the center of the circle, and the digging teeth 203 are used as scrapers for scraping the side walls of the foundation pit, thereby completing the continued fine-tuning of the inner wall of the foundation pit, and realizing the compaction of the bottom of the foundation pit while fine-tuning the side walls of the foundation pit.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. For those skilled in the art, any replacement improvements or changes made to the implementation methods of the present invention fall within the protection scope of the present invention.

[0057] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A rotary excavation assembly, comprising a dipper arm mounted on an excavator body, characterized in that: A swivel unit is installed at the end of the boom, a bucket cylinder group is installed at the end of the swivel unit, and the end of the bucket cylinder group is installed on the rear side wall of the bucket assembly. The bucket assembly includes a bucket piece at the front end and a mixing piece at the rear end. The interior of the mixing piece is connected to the digging cavity of the bucket piece. The bucket assembly has an excavation state and a stirring state when working.

2. A rotary excavation assembly according to claim 1, characterized in that: The slewing unit includes a first slewing bearing and a second slewing bearing. The first fixed portion of the first slewing bearing is fixedly installed at the end of the boom. The first rotating portion of the first slewing bearing is fixedly connected to the second fixed portion of the second slewing bearing through a linkage plate. The second rotating portion of the second slewing bearing is connected to the bucket cylinder group. The central axis of the first rotating portion of the first slewing bearing is perpendicular to the central axis of the second rotating portion of the first slewing bearing.

3. A rotary excavation assembly according to claim 2, characterized in that: At least one telescopic cylinder is fixedly mounted on the outer side wall of the second fixed part of the second slewing bearing, a locking plate is fixedly mounted on the end of the piston rod of the telescopic cylinder, and the end of the locking plate abuts against the outer side wall of the first rotating part of the first slewing bearing in the working state.

4. A rotary excavation assembly according to claim 3, characterized in that: The bucket member includes a bucket body, an excavation cavity is arranged inside the bucket body, the mixing member is arranged on the rear side of the excavation cavity, the rear end of the excavation cavity is communicated with the mixing cavity of the mixing member, a linkage shaft is installed inside the excavation cavity, both ends of the linkage shaft are respectively movable to the outside of the excavation cavity, one end of the linkage shaft is connected to the output end of a driving transmission member, and the input end of the driving transmission member is installed on the bucket body.

5. A rotary excavation assembly according to claim 4, characterized in that: A plurality of digging teeth are bolted and fixedly installed at intervals in sequence along the length direction of the digging portion at the bottom of the front end of the bucket body.

6. A rotary excavation assembly according to claim 5, characterized in that: The other end of the linkage shaft is connected to a foundation pit rolling unit. In a working state, the bottom of the foundation pit rolling unit abuts against the bottom of the currently excavated foundation pit and is used to complete roller compaction of the bottom.

7. A rotary excavation assembly according to claim 6, characterized in that: The driving transmission member includes a fixing frame fixedly mounted on the corresponding end side wall of the bucket body, a driving motor is fixedly mounted in the mounting cavity of the fixing frame, a driving pulley is mounted at the output shaft of the driving motor, an end of the central axis of the driving pulley is coaxially fixedly connected to the mixing member, a driven pulley is arranged on one side of the driving pulley, the driven pulley is fixedly mounted on the end of the linkage shaft, and a toothed belt is cooperatively mounted between the driving pulley and the driven pulley.

8. A rotary excavation assembly according to claim 7, characterized in that: The mixing element includes a mixing chamber which is cooperatively installed on the rear side of the digging chamber of the bucket body, a mixing chamber connected to the digging chamber is arranged inside the mixing chamber, a mixing shaft is arranged inside the mixing chamber, both ends of the mixing shaft are movably extended to the outside of the mixing chamber, one end of the mixing shaft is fixedly connected to the central axis of the transmission pulley, and a plurality of mixing teeth are fixedly installed on the outer wall of the mixing shaft at intervals along its axial direction.

9. A rotary excavation assembly according to claim 8, characterized in that: The bucket cylinder group includes a plurality of first cylinder arms and second cylinder arms that are spaced apart. The front end of each of the first cylinder arms is movably hinged on a first rear ear seat fixedly connected to the outer rear wall of the mixing bin. The front end of each of the second cylinder arms is movably hinged on a second rear ear seat fixedly connected to the outer rear wall of the mixing bin. The rear end of each of the first cylinder arms is movably hinged on a first front ear seat fixedly connected to the second rotating part of the second slewing bearing. The front end of each of the second cylinder arms is movably hinged on a second front ear seat fixedly connected to the second rotating part of the second slewing bearing.

10. An excavation device having a rotating excavation assembly, characterized in that: The excavating equipment comprises a rotary excavating assembly as claimed in any one of claims 1-9.

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