Rotary drilling equipment

Abstract

The utility model relates to the technical field of drilling construction equipment, and provides rotary drilling equipment which comprises a lifting device, a rotary drilling device and a connecting device. The lifting device comprises an arm frame, an arm head and a vehicle body, the arm frame is arranged on the vehicle body, and the arm head is arranged at the end, away from the vehicle body, of the arm frame. The connecting device comprises a first connecting pin shaft and two connecting pieces, the first connecting pin shaft is arranged on the arm head in a penetrating mode, the two connecting pieces are oppositely arranged on the two sides of the arm head and detachably connected with the first connecting pin shaft, and the rotary excavating device is detachably arranged between the two connecting pieces. According to the rotary drilling equipment, the lifting device and the rotary drilling device are connected through the two opposite connecting pieces, compared with an integral connecting part, the two separated connecting pieces can be pre-installed with the lifting device and the rotary drilling device respectively, and then the lifting device and the rotary drilling device are connected together, so that the operation process is more flexible, simpler and more convenient; and the assembly efficiency can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to drilling construction equipment technical field especially relates to a rotary drilling equipment. BACKGROUND

[0002] On the infrastructure site of hilly landform, part of pile foundation is located in mountain slope, deep ditch, rotary drilling equipment is difficult to reach pile driving position, usually need to adopt telescopic arm crawler crane to hoist rotary drilling device operation, however, the connecting structure of existing crane and rotary drilling equipment is more complicated, assembly difficulty is high, has produced great hindrance to the use of rotary drilling equipment. SUMMARY

[0003] The utility model provides a rotary drilling equipment to solve the defect that connecting structure is more complicated in prior art, through setting up two opposite connecting pieces to connect hoisting device and rotary drilling device, compared with integral connecting part, two separate connecting pieces can be preinstalled with hoisting device and rotary drilling device respectively, then they are connected together, such operation process is more flexible and simple, can effectively improve assembly efficiency.

[0004] The utility model provides a rotary drilling equipment, including hoisting device, rotary drilling device and connecting device,

[0005] The hoisting device includes jib, arm head and vehicle body, the jib is arranged on the vehicle body, and the arm head is arranged on one end of the jib away from the vehicle body.

[0006] The connecting device includes first connecting pin shaft and two connecting pieces, the first connecting pin shaft is arranged in the arm head, and the two connecting pieces are arranged on the two sides of the arm head and are detachably connected with the first connecting pin shaft, and the rotary drilling device is detachably arranged between the two connecting pieces.

[0007] According to the rotary drilling equipment provided by the utility model, the connecting piece includes first connecting hole, second connecting hole and connecting groove, the first connecting hole is arranged on one end of the connecting piece away from the rotary drilling device, the connecting groove is arranged on one end of the connecting piece towards the rotary drilling device, and the second connecting hole is arranged between the first connecting hole and the connecting groove.

[0008] The first connecting hole and the second connecting hole are used for being connected with the arm head, and the connecting groove is used for being connected with the rotary drilling device.

[0009] According to the rotary drilling equipment provided by the utility model, the connecting piece further includes first shaft sleeve and second shaft sleeve, the first shaft sleeve is arranged on one side of the first connecting hole towards the arm head, and the second shaft sleeve is arranged on one side of the second connecting hole towards the arm head.

[0010] According to the rotary drilling equipment, the connecting device further comprises a fixing block matched with the connecting groove, the fixing block is arranged at the opening of the connecting groove, the fixing block and the connecting groove enclose a third connecting hole, and the third connecting hole is used for being connected with the rotary digging device.

[0011] According to the rotary drilling equipment, the connecting device further comprises a second connecting pin shaft, one end of the second connecting pin shaft is arranged in the third connecting hole of one of the two connecting pieces, and the other end of the second connecting pin shaft is arranged in the third connecting hole of the other of the two connecting pieces after penetrating through the rotary digging device.

[0012] According to the rotary drilling equipment, the first connecting pin shaft comprises a first connecting part and a second connecting part, and the second connecting part is arranged at two ends of the first connecting part.

[0013] The first connecting part is used for connecting the pulley of the arm head, and the second connecting part is used for connecting the connecting piece.

[0014] According to the rotary drilling equipment, the first connecting pin shaft further comprises a ring groove, the ring groove is arranged between the first connecting part and the second connecting part, and the ring groove is used for limiting the movement of the arm head.

[0015] According to the rotary drilling equipment, the connecting device further comprises a fixing plate and a locking piece, the fixing plate is arranged on the side, away from the arm head, of the connecting piece, one end of the locking piece is located on the side, away from the connecting piece, of the fixing plate, and the other end of the locking piece is fixed to the second connecting part after penetrating through the fixing plate.

[0016] According to the rotary drilling equipment, the rotary digging device comprises a goose head assembly and a stand column assembly, the goose head assembly is detachably arranged between the two connecting pieces, and the stand column assembly is arranged at the end, away from the connecting piece, of the goose head assembly.

[0017] In the rotary drilling equipment, the hoisting device and the rotary digging device are connected through the two opposite connecting pieces, compared with the integral connecting component, the connecting piece is relatively simple in shape and low in processing difficulty; in addition, the separated design is beneficial to the standardized processing flow, improves the production efficiency, reduces the manufacturing cost, and is convenient for large-scale production.

[0018] In addition, when the rotary drilling equipment is assembled, two separate connecting pieces can be pre-installed with the hoisting device and the rotary drilling device respectively, and then they are connected together, so that the operation process is more flexible and simple, and in the process, the two connecting pieces do not affect each other, so that the assembly efficiency can be effectively improved; for large rotary drilling equipment, when assembled at the construction site, this way can reduce the dependence on large auxiliary equipment and reduce the assembly difficulty. Furthermore, when the rotary drilling equipment needs to be repaired or transported, any one of the connecting pieces can be quickly and independently disassembled, so that not only the individual treatment of each part is facilitated, but also the maintainability and maneuverability of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0020] Figure 1 is the overall structure schematic diagram of the rotary drilling equipment provided by the embodiment of the present application.

[0021] Figure 2 is the detail structure schematic diagram of the connecting device provided by the embodiment of the present application.

[0022] Figure 3 is the explosion structure schematic diagram of the connecting device provided by the embodiment of the present application.

[0023] Figure 4 is the front view of the first connecting pin shaft provided by the embodiment of the present application.

[0024] Figure 5 is the front view of the connecting piece provided by the embodiment of the present application.

[0025] Reference signs:

[0026] 10: hoisting device; 11: arm support; 12: arm head; 13: vehicle body; 20: rotary drilling device; 21: goose head assembly; 22: stand column assembly; 30: connecting device; 100: connecting piece; 110: first connecting hole; 120: second connecting hole; 130: connecting groove; 140: first shaft sleeve; 150: second shaft sleeve; 200: first connecting pin shaft; 210: first connecting part; 220: second connecting part; 230: ring groove; 300: fixed plate; 400: locking piece; 500: fixed block; 600: second connecting pin shaft. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described clearly and completely in combination with the drawings in the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model.

[0028] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium. For the ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0029] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0030] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0031] Figure 1 is the overall structure schematic diagram of the rotary drilling rig provided by the utility model embodiment; Figure 2 is the detail structure schematic diagram of the connecting device provided by the utility model embodiment; Figure 3 is the explosion structure schematic diagram of the connecting device provided by the utility model embodiment.

[0032] With reference to Figures 1 to 3 The utility model discloses a rotary drilling equipment, rotary drilling equipment includes hoisting device 10, rotary drilling device 20 and connecting device 30, connecting device 30 includes two connecting pieces 100, two connecting pieces 100 are oppositely arranged at both sides of hoisting device 10, and with hoisting device 10 detachable connection, and rotary drilling device 20 is rotatably arranged between two connecting pieces 100.

[0033] The connecting piece 100 is a plate-shaped special-shaped connecting piece, and the plate-shaped piece is simple in structure, convenient to process, relatively low in cost, can further provide a large connecting area, is favorable for dispersing stress at the connecting position, and enhances the stability of the connection.

[0034] With reference to Figures 1 to 3 It can be understood that the rotary drilling equipment provided by the utility model embodiment connects the hoisting device 10 and the rotary drilling device 20 through the two opposite connecting pieces 100, and compared with the integral connecting component, the connecting piece 100 is relatively simple in shape and low in processing difficulty; secondly, the separated design is favorable for adopting a standardized processing flow, improves production efficiency, reduces manufacturing cost, and facilitates mass production.

[0035] In addition, when the rotary drilling equipment is assembled, the two separated connecting pieces 100 can be pre-installed with the hoisting device 10 and the rotary drilling device 20 respectively, and then they are connected together, and such an operation process is more flexible and simple, and in the process, the two connecting pieces 100 do not affect each other, so that the assembly efficiency can be effectively improved; for large rotary drilling equipment, when assembling at the construction site, such a mode can reduce the dependence on large auxiliary equipment and reduce the assembly difficulty.

[0036] With reference to Figure 3 In the optional embodiment of the utility model, the first connecting pin shaft 200 is further included, the first connecting pin shaft 200 is arranged in the hoisting device 10, and the two connecting pieces 100 are arranged at opposite ends of the first connecting pin shaft 200. It can be understood that the first connecting pin shaft 200 can effectively connect the two connecting pieces 100 and the hoisting device 10 together, and further build a connecting bridge between the rotary drilling device 20 and the hoisting device 10; specifically, in the actual installation process, by inserting the first connecting pin shaft 200 into the corresponding hole position of the hoisting device 10 and the corresponding position of the connecting piece 100, the accurate positioning and reliable connection between the three can be realized, and the integrity of the overall structure of the equipment is ensured.

[0037] In addition, the first connecting pin shaft 200 is an important force transmission component, and since the first connecting pin shaft 200 connects the two connecting members 100, the forces borne by the two connecting members 100 can be coordinated and balanced. Specifically, during operation of the device, whether it is the vertical direction gravity or the horizontal direction force, the first connecting pin shaft 200 can reasonably distribute the forces between the two connecting members 100, so as to ensure that the two connecting members 100 bear the load together, thereby reducing the risk of damage of a single connecting member 100 due to uneven force, prolonging the service life of the connecting member 100, and improving the stability of the entire connecting structure.

[0038] Figure 4 is a front view of the first connecting pin shaft provided by the embodiment of the utility model.

[0039] Referring to Figure 3 and Figure 4 In an optional embodiment of the utility model, the first connecting pin shaft 200 includes a first connecting part 210, a second connecting part 220 and a ring groove 230, the second connecting part 220 on the first connecting pin shaft 200 has two sections, and the two sections of the second connecting part 220 are respectively arranged at two ends of the first connecting part 210, and the ring groove 230 also has two sections and is respectively located between the first connecting part 210 and the second connecting part 220.

[0040] It can be understood that in the rotary drilling device provided by the embodiment of the utility model, the first connecting part 210 is used for connecting the pulley on the arm head 12, and during rotary drilling work or hoisting work, the pulley can change the direction of the force and play a guiding and stabilizing role on the rope or chain, and the specific structure of the pulley can be referred to the prior art. The second connecting part 220 is used for connecting the connecting member 100, and the structure and size of the second connecting part 220 are designed to match the first connecting hole 110 and the second connecting hole 120 of the connecting member 100, so as to provide a stable connecting point and ensure the cooperative work between the components of the device, thereby improving the overall stability of the device.

[0041] The annular groove 230 can cooperate with the arm head 12 to limit the axial displacement of the arm head 12 along the first connecting pin shaft 200. Specifically, during the operation of the rotary drilling device, various vibrations and external forces will be generated, for example, when the device is performing pile driving, a strong impact force can cause the arm head 12 to have a tendency to move axially. If the arm head 12 is not limited, the movement of the arm head 12 will cause the connecting piece 100 to be extruded, and in severe cases, the connecting piece 100 will be detached or broken. In the embodiment, the frame in the arm head 12 can be clamped in the annular groove 230, and can form an abutting limiting relationship with the groove wall of the annular groove 230. The cooperation between the annular groove 230 and the arm head 12 can effectively prevent the arm head 12 from moving axially along the connecting pin shaft, and can limit the arm head 12 to the correct position, thereby avoiding the extrusion of the connecting piece 100 by the arm head 12 in the axial direction, ensuring the stability of the connection between the connecting piece 100 and the arm head 12, preventing the connection from loosening, and ensuring the normal operation of the device.

[0042] With reference to the above Figure 3 In an optional embodiment of the utility model, the connecting device 30 further comprises a fixing plate 300 and a locking piece 400. The fixing plate 300 is arranged on the side of the connecting piece 100 away from the hoisting device 10. One end of the locking piece 400 is located on the side of the fixing plate 300 away from the connecting piece 100, and the other end of the locking piece 400 is fixed to the end of the second connecting part 220 after penetrating through the fixing plate 300.

[0043] It can be understood that when the connecting piece 100 is connected to the second connecting part 220, it may be subjected to an outward thrust from the arm head 12, which will cause the connecting piece 100 to move in a direction away from the second connecting part 220. After being limited by the locking piece 400, the fixing plate 300 can generate a thrust on the connecting piece 100 from the side of the connecting piece 100 away from the arm head 12, which can cause the connecting piece 100 to be firmly fixed to the second connecting part 220.

[0044] In addition, when the force is transmitted from the second connecting part 220 to the connecting piece 100, the fixing plate 300 can guide the force to disperse along the plane direction of the fixing plate 300, avoiding the force from being concentrated on the connecting point of the connecting piece 100 and the first connecting pin shaft 200. In this way, the possibility of local stress concentration is reduced, and the carrying capacity of the connecting structure is improved. This helps to prolong the service life of the connecting piece 100 and the first connecting pin shaft 200, and reduces the risk of device failure due to damage to the connecting parts.

[0045] Secondly, the fixed plate 300 can prevent foreign matters such as dust and sand from entering the first connecting hole 110 and the second connecting hole 120 to some extent. In the construction site, the environment is usually harsh. If these foreign matters enter the first connecting hole 110 and the second connecting hole 120, the wear between the components may be aggravated, the reliability of the connection is affected, the fixed plate 300 is arranged, which plays a role of a barrier, reduces the erosion of the foreign matters to the first connecting hole 110 and the second connecting hole 120, and the first connecting hole 110 and the second connecting hole 120 can be kept clean, thereby prolonging the service life of the first connecting pin shaft 200 and the connecting piece 100 and improving the reliability and stability of the equipment.

[0046] The main function of the locking piece 400 is to firmly fix the fixed plate 300 and the connecting piece 100 on the first connecting pin shaft 200. During the operation of the equipment, the fixed plate 300 and the connecting piece 100 may be loose due to the influence of factors such as vibration and impact. The locking piece 400 can effectively overcome these external forces by applying sufficient fastening force, prevent the fixed plate 300 and the connecting piece 100 from rotating or axially displacing on the first connecting pin shaft 200, and can ensure the fastening of the connection between the fixed plate 300 and the connecting piece 100 and the first connecting pin shaft 200.

[0047] Continuing to refer to Figure 3 and Figure 4 In the optional embodiment of the utility model, the connecting piece 100 includes the first connecting hole 110, the second connecting hole 120 and the connecting groove 130, the first connecting hole 110 is arranged at the end of the connecting piece 100 away from the rotary digging device 20, the connecting groove 130 is arranged at the end of the connecting piece 100 towards the rotary digging device 20, and the second connecting hole 120 is arranged between the first connecting hole 110 and the connecting groove 130; the first connecting hole 110 and the second connecting hole 120 are used to connect the hoisting device 10, and the connecting groove 130 is used to be connected with the rotary digging device 20.

[0048] It can be understood that the arrangement of the first connecting hole 110 and the second connecting hole 120 can allow the connecting piece 100 and the arm head 12 of the hoisting device 10 to be connected by two first connecting pin shafts 200. In this way, the first connecting hole 110 and the second connecting hole 120 and the two first pin shafts connecting the connecting piece 100 can jointly act and share the load between the connecting piece 100 and the hoisting device 10, so that the load can be more evenly distributed on the connecting piece 100 and the hoisting device 10, avoiding that a single connecting point bears excessive stress, and improving the reliability and stability of the connection.

[0049] The rotary digging device 20 needs to perform a certain range of movements such as rotation, lifting, and the like during operation, and the design of the connecting groove 130 can adapt to these movement requirements, provide sufficient movement space and freedom for the rotary digging device 20, and maintain the stability of the connection at the same time. For example, when the rotary digging device 20 needs to adjust the drilling angle, the connecting groove 130 allows the rotary digging device 20 to rotate within a certain range without affecting the connection strength between the rotary digging device 20 and the connecting piece 100, thereby ensuring the normal operation of the equipment in different working states.

[0050] During equipment assembly, the connecting groove 130 facilitates quick installation of the rotary digging device 20 and the connecting piece 100, and the operator can accurately embed the corresponding part of the rotary digging device 20 into the connecting groove 130, and then fix it through the second connecting pin shaft 600 and the like, thereby effectively improving the assembly efficiency. During equipment maintenance or replacement of the rotary digging device 20, the connecting groove 130 also makes the disassembly process more convenient, facilitates the maintenance, repair, or replacement of the rotary digging device 20, and reduces the maintenance cost and downtime of the equipment.

[0051] Continuing to refer to Figure 3 and Figure 4 In optional embodiments of the utility model, the connecting piece 100 further comprises a first shaft sleeve 140 and a second shaft sleeve 150, the first shaft sleeve 140 is arranged on the side of the first connecting hole 110 facing the hoisting device 10, and the second shaft sleeve 150 is arranged on the side of the second connecting hole 120 facing the hoisting device 10. It can be understood that the first shaft sleeve 140 and the second shaft sleeve 150 can play a certain supporting and buffering role, on the one hand, the wear of the first connecting pin shaft 200 can be slowed down, and the first connecting pin shaft 200 is protected; on the other hand, when the equipment is subjected to external impact or vibration, the first shaft sleeve 140 and the second shaft sleeve 150 can absorb part of the energy, thereby reducing the impact force between the first connecting pin shaft 200 and the connecting piece 100 and between the arm head 12 and the connecting piece 100, thereby enhancing the stability of the connection.

[0052] Figure 5 It is the front view of the connecting piece provided by the utility model embodiment.

[0053] Referring to Figure 3 and Figure 5 In optional embodiments of the utility model, the connecting device 30 further comprises a fixing block 500 matched with the connecting groove 130 and a second connecting pin shaft 600, the fixing block 500 is arranged at the opening of the connecting groove 130 and is fixedly connected with the groove wall of the connecting groove 130 through a fastener, the fixing block 500 and the connecting groove 130 enclose a third connecting hole, and the third connecting hole is used for connecting with the rotary digging device 20.

[0054] One end of the second connecting pin shaft 600 is arranged in one of the two third connecting holes, and the other end of the second connecting pin shaft 600 is arranged in the other of the two third connecting holes after passing through the rotary digging device 20. Similar to the foregoing embodiment, the corresponding fixing plate 300 and locking piece 400 can be arranged outside the third connecting hole to fix the second connecting pin shaft 600.

[0055] It can be understood that, in the equipment assembly process, the fixed block 500 can make the connection between the rotary digging device 20 and the connecting piece 100 more convenient and fast. Specifically, the operator can first pre-install the second connecting pin shaft 600 with the rotary digging device 20, then place the connecting part of the second connecting pin shaft 600 into the connecting groove 130, and then install the fixed block 500 and fix the fixed block 500 through the fastener. The operation process is relatively simple. When the equipment needs to be maintained or transported, the fixed block 500 is also convenient to disassemble, which can quickly separate the rotary digging device 20 and the connecting piece 100, and improve the maintainability and mobility of the equipment. For example, when the rotary digging device 20 is checked for faults or replaced at the construction site, the presence of the fixed block 500 can reduce the disassembly time and workload.

[0056] Continue to participate Figure 1 In an optional embodiment of the utility model, the hoisting device 10 includes an arm support 11, an arm head 12 and a vehicle body 13. The arm support 11 is arranged on the vehicle body 13, and the structural form of the arm support 11 can be truss type, box type or other structures capable of bearing large load. The arm head 12 is arranged at one end of the arm support 11 away from the vehicle body 13, is the connecting part of the connecting device 30 and the arm support 11, and is provided with a plurality of connecting holes and positioning pin holes on the arm head 12 for detachable connection with the connecting piece 100. The vehicle body 13 serves as the moving platform of the entire rotary drilling equipment and has the functions of walking and turning. Specifically, reference can be made to the adaptive design of the prior art, and details are not described herein.

[0057] Continue to participate Figure 1 In an optional embodiment of the utility model, the rotary digging device 20 includes a goose head assembly 21 and a stand column assembly 22. The goose head assembly 21 is arranged between the two connecting pieces 100, and the stand column assembly 22 is arranged at one end of the goose head assembly 21 away from the connecting pieces 100. The goose head assembly 21 mainly includes a goose head main body, a transmission mechanism, a pulley set and the like, and the stand column assembly 22 mainly includes a stand column main body, a guide rail, a power head, a drill rod and the like. Specifically, reference can be made to the adaptive design of the prior art, and details are not described herein.

[0058] It should be noted that the technical solutions in each of the embodiments of the present application can be combined with each other, but the basis for the combination is that it can be realized by a person skilled in the art; when the combination of the technical solutions is contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, that is, it is not within the protection scope of the present application.

[0059] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of the present application.

Claims

1. A rotary drilling apparatus, characterized by, The crane device, the rotary digging device and the connecting device are provided. The crane device comprises an arm support, an arm head and a vehicle body. The arm support is arranged on the vehicle body.

2. The rotary digger apparatus according to claim 1, characterized by, The arm head is arranged at one end of the arm support away from the vehicle body. The connecting device comprises a first connecting pin shaft and two connecting members.

3. The rotary digger apparatus according to claim 2, characterized by, The first connecting pin shaft is arranged in the arm head.

4. The rotary digger apparatus according to claim 2, characterized by, The two connecting members are arranged on two sides of the arm head.

5. The rotary digger apparatus according to claim 4, characterized by, The two connecting members are detachably connected with the first connecting pin shaft.

6. The rotary digger apparatus according to claim 1, characterized by, The rotary digging device is detachably arranged between the two connecting members. The connecting member comprises a first connecting hole, a second connecting hole and a connecting slot.

7. The rotary digger apparatus according to claim 6, characterized by, The first connecting hole is arranged at one end of the connecting member away from the rotary digging device.

8. The rotary digger apparatus according to claim 6, characterized by, The connecting slot is arranged at one end of the connecting member towards the rotary digging device.

9. The rotary digger apparatus according to any one of claims 1 to 8, characterized by, The second connecting hole is arranged between the first connecting hole and the connecting slot. The first connecting hole and the second connecting hole are used for connecting with the arm head. The connecting slot is used for connecting with the rotary digging device. The connecting member further comprises a first shaft sleeve and a second shaft sleeve. The first shaft sleeve is arranged at one side of the first connecting hole towards the arm head. The second shaft sleeve is arranged at one side of the second connecting hole towards the arm head. The connecting device further comprises a fixing block matched with the connecting slot. The fixing block is arranged at an opening of the connecting slot. The fixing block and the connecting slot enclose a third connecting hole. The third connecting hole is used for connecting with the rotary digging device. The connecting device further comprises a second connecting pin shaft. One end of the second connecting pin shaft is arranged in the third connecting hole of one of the two connecting members. The other end of the second connecting pin shaft is arranged in the third connecting hole of the other of the two connecting members after passing through the rotary digging device. The first connecting pin shaft comprises a first connecting part and a second connecting part. The second connecting part is arranged at two ends of the first connecting part. The first connecting part is used for connecting a pulley of the arm head. The second connecting part is used for connecting the connecting member. The first connecting pin shaft further comprises a ring slot. The ring slot is arranged between the first connecting part and the second connecting part. The ring slot is used for limiting the movement of the arm head. The connecting device further comprises a fixing plate and a locking member. One end of the locking member is located at one side of the fixing plate away from the connecting member. The other end of the locking member is fixed to the second connecting part after passing through the fixing plate. The rotary digging device comprises a goose head assembly and a stand column assembly. The goose head assembly is detachably arranged between the two connecting members. The stand column assembly is arranged at one end of the goose head assembly away from the connecting members.

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