Mechanism box replacement assisting device

Abstract

This invention discloses an auxiliary device for replacing mechanism housings, comprising: a base; a column, which is rotatably mounted on the base via a base turntable; two lifting arms, arranged parallel to each other, one end of each lifting arm being rotatably connected to the upper part of the column, and the other end being rotatably connected to a connecting piece; a hydraulic cylinder, one end of which is rotatably connected to the lower part of the column, and the other end being rotatably connected to the middle part of the lower lifting arm; a boom, which is rotatably mounted on the connecting piece via a boom turntable; and a transfer bucket, which is rotatably mounted on the end of the boom via a transfer bucket turntable. This auxiliary device for replacing mechanism housings can assist in lifting and maintaining the mechanism housing at a certain height, thereby facilitating the quick and accurate replacement of the mechanism housing, significantly shortening operation time, improving overall work efficiency, reducing manual intervention, lowering safety risks in high-pressure environments, and ensuring the safety of workers.

Description

Technical Field

[0001] This invention relates to the field of power maintenance equipment technology, and in particular to an auxiliary device for replacing mechanism boxes. Background Technology

[0002] In the current substation maintenance work, there is no dedicated tool to assist in the replacement of switch or disconnector mechanisms. A mechanism box typically weighs 70kg-150kg and is 1-1.5m off the ground. Currently, maintenance personnel usually lift the mechanism box manually, which poses a safety hazard of tipping over. Moreover, replacing the mechanism box takes 4-6 hours, which is very inefficient. Summary of the Invention

[0003] To address the above shortcomings, this invention provides an auxiliary device for replacing mechanism housings, which can solve the problems of low replacement efficiency, high labor intensity, and significant safety hazards caused by the difficulty in lifting and holding the mechanism housing during existing mechanism housing replacements.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An auxiliary device for changing a mechanism housing includes:

[0006] Base;

[0007] The column is rotatably mounted on the base via a base turntable;

[0008] The lifting arms consist of two parallel arms, one end of which is rotatably connected to the upper part of the column, and the other end of which is rotatably connected to the connecting piece.

[0009] A hydraulic cylinder, one end of which is rotatably connected to the lower part of the column, and the other end of which is rotatably connected to the middle part of the lifting arm located below;

[0010] The boom is rotatably mounted on the connecting member via a boom turntable;

[0011] The transfer bucket is mounted on the end of the boom via a transfer bucket turntable.

[0012] Furthermore, the base includes multiple outwardly radiating support legs, the bottom surface of the support legs is provided with casters, and the end of the support legs is provided with foot cups.

[0013] Furthermore, the support leg includes a sleeve and a telescopic rod sleeved within the sleeve, the caster wheel is mounted on the sleeve, and the foot cup is mounted on the end of the telescopic rod.

[0014] Furthermore, screws are fixedly installed on both sides inside the transfer hopper, and nuts are screwed onto the screws;

[0015] Two opposing clamping plates are slidably installed inside the transfer hopper. The clamping plates are L-shaped in general, with their horizontal bottoms placed inside the transfer hopper and having through slots extending to both sides. The through slots are fitted onto the screw.

[0016] Furthermore, the screw is disposed on both sides of the inside of the transfer bucket, and the two side walls of the transfer bucket are provided with side wall through grooves at the positions corresponding to the clamping plates, so that when the clamping plates move outward to a certain position, they can fit through the side wall through grooves.

[0017] Furthermore, the bottom of the transfer hopper is provided with an avoidance groove.

[0018] Furthermore, it also includes a turntable locking mechanism, which is used to be installed on the base turntable, boom turntable, or transfer bucket turntable to temporarily lock the base turntable, boom turntable, or transfer bucket turntable.

[0019] The base turntable, the boom turntable, and the transfer bucket turntable each include a fixed plate and a rotating plate that rotates onto the fixed plate;

[0020] The turntable locking mechanism includes:

[0021] A positioning component is detachably mounted on the fixed plate. The top surface of the positioning component extends downward and is provided with a screw hole and a square hole in sequence. When the positioning component is installed, a locking component placement hole is provided on the side facing the base turntable, boom turntable, or transfer bucket turntable. The locking component placement hole is connected to the square hole.

[0022] A locking element is matched and disposed in the locking element placement hole and can partially extend out of the locking element placement hole to abut against the rotating disk; the inner end of the locking element is provided with a bevel.

[0023] A pusher is fitted into the square hole and extends partially upward to the bottom of the screw hole, the lower end of the pusher abutting against the inclined surface of the inner end of the locking member;

[0024] A locking bolt is fitted onto the screw hole, with its bottom abutting against the upper end of the pusher.

[0025] Furthermore, the outer end of the locking member is provided with a locking portion that corresponds to the side surface of the rotating disk.

[0026] Furthermore, when the positioning component is installed, a locking part receiving groove is provided on the side facing the base turntable, boom turntable, or transfer bucket turntable for accommodating the locking part.

[0027] Furthermore, the positioning member is provided with a mounting hole, the extension direction of which is consistent with the extension direction of the mounting hole of the locking member. A reset spring is provided in the mounting hole, one end of which is connected to the wall of the mounting hole, and the other end is connected to the inner end of the locking member.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. The mechanism box replacement auxiliary device of the present invention can help lift and hold the mechanism box at a certain height, thereby helping to complete the replacement of the mechanism box quickly and accurately, significantly shortening the operation time and improving the overall work efficiency;

[0030] 2. The mechanism box replacement auxiliary device of the present invention reduces manual intervention, lowers the safety risks of working in a high-pressure environment, and ensures the safety of the staff;

[0031] 3. The robotic arm structure undertakes heavy physical labor, reducing the physical burden on operators and lowering the risk of occupational diseases caused by prolonged physical labor;

[0032] 4. It can adapt to different types and sizes of mechanism boxes, better meet diverse operational needs, and improve the versatility of the equipment. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0034] Figure 1 This is a schematic diagram of the structure of the mechanism box replacement auxiliary device of the present invention;

[0035] Figure 2 This is a schematic diagram of the transfer bucket in the present invention;

[0036] Figure 3 This is a schematic diagram of the turntable locking mechanism in this invention;

[0037] Figure 4 This is an equiaxed cross-sectional view of the turntable locking mechanism in this invention;

[0038] Figure 5 This is a schematic diagram illustrating the implementation of the mechanism box replacement auxiliary device of the present invention.

[0039] The markings shown in the figure are as follows: 10-base; 11-support leg; 111-sleeve; 112-telescopic rod; 12-caster wheel; 13-foot cup; 20-column; 31-base turntable; 32-arm turntable; 33-transfer bucket turntable; 40-lifting arm; 50-connector; 60-hydraulic cylinder; 70-arm; 80-transfer bucket; 81-clamping plate; 82-clamping plate through groove; 83-screw; 84-nut; 85-side wall through groove; 86-avoidance groove; 87-handrail; 90-turntable locking mechanism; 92-screw hole; 93-square hole; 94-locking component mounting hole; 95-locking component; 96-pushing component; 97-locking bolt; 98-locking part; 99-mounting hole; 910-reset tension spring; 911-locking part receiving groove; 100-mechanism box. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0043] Please refer to Figures 1 to 4 A preferred embodiment of the present invention provides an auxiliary device for changing mechanism boxes. The auxiliary device mainly includes a base 10, a column 20, a lifting arm 40, a connector 50, a hydraulic cylinder 60, a boom 70, and a transfer bucket 80.

[0044] The base 10 supports the entire device to maintain its stability and ensure stability during operation. The base 10 includes four outwardly extending support legs 11. The bottom surface of each support leg 11 is equipped with casters 12, and the ends of each support leg 11 are equipped with feet 13. The casters 12 facilitate the movement of the base 10, thus enabling the movement of the entire auxiliary device. The feet 13 can be adjusted downwards to ensure stability of the base 10 during operation when used on uneven ground by adjusting the feet 13 to contact the ground. In a preferred embodiment, each support leg 11 includes a sleeve 111 and a telescopic rod 112 fitted inside the sleeve 111. The telescopic rod 112 can be partially retracted into the sleeve 111 for storage to reduce space occupation, or it can be extended to a larger area, allowing the base 10 to cover a wider area and making the base 10 more robust. When configured as a sleeve 111 and a telescopic rod 112, the caster wheel 12 is mounted on the sleeve 111, and the foot cup 13 is mounted on the end of the telescopic rod 112.

[0045] The column 20 is rotatably mounted on the base 10 via the base turntable 31. The column 20 is vertically positioned and has a certain height, allowing it to rotate relative to the base 10 via the base turntable 31. The base turntable 31 provides a basis for the rotation of the column 20 and its components, enabling the column 20 and its components to move (rotate) flexibly in the horizontal plane, facilitating docking and replacement of the mechanism box.

[0046] There are two lifting arms 40, which are arranged parallel to each other. One end of each lifting arm 40 is rotatably connected to the upper part of the column 20, and the other end is rotatably connected to the connector 50.

[0047] One end of the hydraulic cylinder 60 is rotatably connected to the lower part of the column 20, and the other end is rotatably connected to the middle part of the lower lifting arm 40. Specifically, the bottom of the cylinder body of the hydraulic cylinder 60 is rotatably connected to the lower part of the column 20, and the end of the telescopic rod of the hydraulic cylinder 60 is rotatably connected to the middle part of the lower lifting arm 40. When the telescopic rod of the hydraulic cylinder 60 extends, it pushes the lower lifting arm 40 upward, causing both lifting arms 40 to rotate upward together under the action of the column 20 and the connecting member 50. At this time, the connecting member 50 is lifted upward, and it does not rotate during the lifting process, maintaining its original horizontal state. When the telescopic rod of the hydraulic cylinder 60 retracts, it drives both lifting arms 40 to rotate downward together, causing the connecting member 50 to move downward. Through the extension of the hydraulic cylinder 60, the connecting member 50 can be smoothly lifted. The hydraulic cylinder 60 is a manual hydraulic cylinder, which does not require the introduction of an additional drive mechanism. It is used to adjust the height of the connector 50 and its components to ensure that the connector 50 and its components can reach the appropriate height when docking with the mechanism box.

[0048] The boom 70 is rotatably mounted on the connector 50 via the boom turntable 32, allowing it to rotate relative to the connector 50 and move up or down with it. The boom 70, through its connection with the lifting arm 40 and the connector 50, provides additional lateral support, facilitating precise docking and movement when changing the mechanism housing. The boom turntable 32 provides a base for the rotation of the boom 70 and its components, enabling flexible movement (rotation) of the boom 70 and its components in the horizontal plane, facilitating docking and changing the mechanism housing.

[0049] The transfer bucket 80 is rotatably mounted on the end of the boom 70 via the transfer bucket turntable 33, allowing it to rotate relative to the boom 70 and move up or down with the boom 70. That is, when the boom 70 is lifted upwards, the transfer bucket 80 is lifted upwards along with it. The transfer bucket 80 has an open top and one side (away from the boom 70), with a flat bottom to ensure stability when the mechanism box is placed inside. The transfer bucket turntable 33 provides a base for the rotation of the transfer bucket 80 and its components, allowing them to move (rotate) flexibly in the horizontal plane, facilitating docking and replacement of the mechanism box.

[0050] The base turntable 31, the boom turntable 32, and the transfer bucket turntable 33 have the same structure.

[0051] When implementing, you can refer to Figure 5 The entire mechanism box replacement auxiliary device is moved to the working position, the support legs 11 are extended, and the foot cups 13 are adjusted to ensure the device is stable and does not wobble. Then, the operator manually operates the hydraulic cylinder 60 to drive the lifting arm 40 to rotate upwards. At this time, the connecting piece 50 is lifted upwards, driving the boom 70 and the transfer bucket 80 to a suitable height. After the transfer bucket 80 reaches the suitable height, its position is adjusted by the base turntable 31, boom turntable 32, and transfer bucket turntable 33, etc., so that it slowly approaches the power supply equipment (mechanism box) to prevent collision and wear on the equipment. When the mechanism box 100 is completely inside the transfer bucket 80 and confirmed to be stable, it is slowly lifted by the hydraulic cylinder 60 and moved to the designated position by rotation. After reaching the designated position, the transfer bucket 80 and the power supply equipment on it are slowly lowered by the hydraulic cylinder 60. After the power supply equipment is stably transferred, the transfer bucket 80 is slowly withdrawn to complete the operation. It can be understood that, referring to the above operation, the mechanism box replacement auxiliary device of the present invention can be used to install the mechanism box in the designated position.

[0052] In a preferred embodiment, the bottom of the transfer bucket 80 is provided with a bypass groove 86. By setting the bypass groove 86, it is possible to avoid the secondary line connection pipeline when entering the area below the mechanism box, so that the mechanism box can enter the transfer bucket 80. This effectively avoids interference with the connection pipeline during the replacement process, reduces the potential risk of damage, and ensures the integrity of the equipment and the smooth operation.

[0053] Screws 83 are fixedly installed on both sides inside the transfer bucket 80, and nuts 84 are screwed onto the screws 83. Two opposing clamping plates 81 are slidably installed inside the transfer bucket 80. The clamping plates 81 are L-shaped, with their horizontal bottoms placed inside the transfer bucket 80 and having clamping plate slots 82 extending to both sides. The clamping plate slots 82 fit onto the screws 83, and the clamping plates 81 are pressed and fixed by tightening the nuts 84. The two opposing clamping plates 81 form a clamp that can hold and fix the mechanism box, preventing the mechanism box from shaking or falling. By setting movable opposing clamping plates 81, it can adapt to mechanism boxes of different sizes. In the exemplary embodiment of the present invention, the clamping body can open 90cm to the left and right to adapt to mechanism boxes of different sizes, such as those applicable to 500kV mechanisms, and those suitable for 110kV and below mechanism boxes. This solves the limitation of different mechanism box sizes on replacement operations, enabling the mechanism box replacement auxiliary device to efficiently handle various types of equipment and improve work efficiency.

[0054] The screw 83 is located on both sides of the inside of the transfer bucket 80. The two side walls of the transfer bucket 80 are provided with side wall through grooves 85 at the positions corresponding to the clamping plates 81. When the clamping plates 81 move outward to a certain position, they can fit through the side wall through grooves 85. By setting the side wall through grooves 85, on the one hand, the clamping plates 81 can be moved outward to a more edge position. On the other hand, the side wall through grooves 85 can also limit the clamping plates 81 to ensure the stability of the clamping plates 81 and thus ensure the stability of the clamping.

[0055] The transfer bucket 80 has a handrail 87 at the bottom near the boom 70. The handrail 87 helps to fine-tune the transfer bucket 80, such as rotating the transfer bucket 80.

[0056] In a preferred embodiment, the mechanism box replacement auxiliary device further includes a turntable locking mechanism 90. The turntable locking mechanism 90 is installed on the base turntable 31, the boom turntable 32, or the transfer bucket turntable 33 to temporarily lock the base turntable 31, the boom turntable 32, or the transfer bucket turntable 33. After locking the base turntable 31, the boom turntable 32, or the transfer bucket turntable 33, the base turntable 31, the boom turntable 32, or the transfer bucket turntable 33 cannot rotate. By restricting the rotation of the base turntable 31 and / or the boom turntable 32 and / or the transfer bucket turntable 33, the column 20, and / or the boom 70 and / or the transfer bucket 80 can be kept in a certain position without rotating or deviating, achieving precise positioning.

[0057] The base turntable 31, boom turntable 32, and transfer bucket turntable 33 each include a fixed plate and a rotating plate mounted on the fixed plate. The rotating plate and the fixed plate are coaxially arranged, with the fixed plate fixed to its mounting component, and the rotating plate rotates. The fixed plate is usually fixed by pins and actually has multiple screw holes. Based on this, the turntable locking mechanism 90 can be detachably installed with the fixed plate using these screw holes. Of course, pin holes can also be provided on the fixed plate, and detachable installation can be achieved by fixing with pins. The base turntable 31, boom turntable 32, and transfer bucket turntable 33 can each be equipped with a turntable locking mechanism 90. Of course, the turntable locking mechanism 90 can be detachably installed, or it can be omitted when not in use (no locking required).

[0058] The turntable locking mechanism 90 includes a positioning component 91, a locking component 95, a pushing component 96, and a locking bolt 97.

[0059] The positioning element 91 is detachably mounted on the fixed disk. For example, the positioning element 91 has threaded holes or pin holes that correspond to the threaded holes or pin holes on the fixed disk, allowing for fixation by bolts or pins. In this preferred embodiment, the positioning element 91 is generally semi-circular, with its inner contour matching the outer contour of the rotating disk. In this case, the positioning element 91 can be inserted from the side and abut against the outer periphery of the rotating disk. Both the positioning element 91 and the fixed disk have pin holes. When the positioning element 91 is placed on the fixed disk and abuts against the rotating disk, the pin holes of both are aligned. Inserting a pin at this point will fix the positioning element 91 to the fixed disk, making assembly and disassembly very simple.

[0060] The top surface of the positioning component 91 extends downward and is provided with screw holes 92 and square holes 93 in sequence. When the positioning component 91 is installed, a locking component placement hole 94 is provided on the side facing the base turntable 31, the boom turntable 32, or the transfer bucket turntable 33. The locking component placement hole 94 is connected to the square hole 93.

[0061] A locking member 95 is fitted within the locking member mounting hole 94 and partially extends out of the hole to abut against the rotating disk. The locking member 95 has a cross-section with an inclined surface at its inner end. A pusher 96 is fitted into the square hole 93 and partially extends upward to the bottom of the screw hole 92. The lower end of the pusher 96 abuts against the inclined surface of the inner end of the locking member 95. In a preferred embodiment, the lower end of the pusher 96 is arc-shaped, with the arc surface tangentially abutting against the inclined surface. A locking bolt 97 is fitted into the screw hole 92, its bottom abutting against the upper end of the pusher 96. The locking bolt 97 is a wing bolt for easy manual tightening. During implementation, when the locking bolt 97 is tightened inward, it drives the pusher 96 downward. The lower end of the pusher 96 interacts with the inclined surface of the inner end of the locking member 95, thereby pushing the locking member 95 outward to press against the rotating disk. At this time, the rotating disk cannot rotate, thus achieving locking of the rotating disk. Since the downward tightening of the bolt 97 drives the locking member 95 to move outward, and the two are perpendicular to each other, the locking member 95 can be effectively kept pressed against the rotating disk, preventing loosening during use.

[0062] The outer end of the locking member 95 is provided with a locking part 98 that matches the side of the rotating disk. By providing the locking part 98, the contact area with the rotating disk can be increased, and better locking can be achieved through greater friction. When the positioning member 91 is installed, a locking part receiving groove 911 is provided on the side facing the base turntable 31, the boom turntable 32, or the transfer bucket turntable 33 to accommodate the locking part 98, so that when the locking member 95 is not extended, the locking part 98 can be accommodated in the locking part receiving groove 911.

[0063] The positioning member 91 is also provided with a mounting hole 99. The extension direction of the mounting hole 99 is consistent with the extension direction of the mounting hole 94 of the locking member. A return spring 910 is provided in the mounting hole 99. One end of the return spring 910 is connected to the wall of the mounting hole 99, and the other end is connected to the inner end of the locking member 95. By providing the return spring 910, when the locking member 95 is partially pushed out, the return spring 910 has an inward pulling force on the locking member 95. At this time, the locking member 95 has a tendency to return to its original position. When the locking bolt 97 is tightened outward, the locking member 95 can return to its original position under the action of the return spring 910.

[0064] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An auxiliary device for changing a mechanism case, characterized by, Including: Base (10); The column (20) is rotatably mounted on the base (10) via the base turntable (31); The lifting arms (40) consist of two arms arranged in parallel to each other. One end of each lifting arm (40) is rotatably connected to the upper part of the column (20), and the other end is rotatably connected to the connector (50). A hydraulic cylinder (60) has one end rotatably connected to the lower part of the column (20) and the other end rotatably connected to the middle part of the lifting arm (40) located below. The boom (70) is rotatably mounted on the connector (50) via the boom turntable (32); A transfer bucket (80) is rotatably mounted on the end of the boom (70) via a transfer bucket turntable (33); It also includes a turntable locking mechanism (90), which is used to be installed on the base turntable (31) or boom turntable (32) or transfer bucket turntable (33) to temporarily lock the base turntable (31) or boom turntable (32) or transfer bucket turntable (33). The base turntable (31), the boom turntable (32), and the transfer bucket turntable (33) each include a fixed plate and a rotating plate rotatably mounted on the fixed plate; The turntable locking mechanism (90) includes: The positioning component (91) is detachably mounted on the fixed plate. The top surface of the positioning component (91) extends downward and is provided with a screw hole (92) and a square hole (93) in sequence. When the positioning component (91) is installed, a locking component mounting hole (94) is provided on the side facing the base turntable (31), the boom turntable (32), or the transfer bucket turntable (33). The locking component mounting hole (94) is connected to the square hole (93). A locking member (95) is matched and disposed in the locking member mounting hole (94) and can partially extend out of the locking member mounting hole (94) to abut against the rotating disk. The inner end of the locking member (95) is provided with a bevel. A pusher (96) is matched in the square hole (93) and extends partially upward to the bottom of the screw hole (92). The lower end of the pusher (96) abuts against the inclined surface of the inner end of the locking member (95). A locking bolt (97) is fitted on the screw hole (92) and its bottom abuts against the upper end of the pusher (96).

2. The mechanism box replacement auxiliary device according to claim 1, characterized in that, The base (10) includes multiple outwardly radiating support legs (11), the bottom surface of the support legs (11) is provided with casters (12), and the end of the support legs (11) is provided with foot cups (13).

3. The mechanism box replacement auxiliary device according to claim 2, characterized in that, The support leg (11) includes a sleeve (111) and a telescopic rod (112) sleeved in the sleeve (111). The caster wheel (12) is mounted on the sleeve (111), and the foot cup (13) is mounted on the end of the telescopic rod (112).

4. The mechanism box replacement auxiliary device according to claim 1, characterized in that, Screws (83) are fixedly installed on both sides inside the transfer bucket (80), and nuts (84) are screwed onto the screws (83). Two opposing clamps (81) are slidably installed inside the transfer bucket (80). The clamps (81) are L-shaped in general, with their horizontal bottoms placed inside the transfer bucket (80) and having clamp through slots (82) extending to both sides. The clamp through slots (82) are fitted onto the screw (83).

5. The mechanism box replacement auxiliary device according to claim 4, characterized in that, The screw (83) is located on both sides of the inside of the transfer bucket (80). The two side walls of the transfer bucket (80) are provided with side wall through grooves (85) at the positions corresponding to the clamping plate (81) so that when the clamping plate (81) moves outward to a certain position, it can match and pass through the side wall through grooves (85).

6. The mechanism box replacement auxiliary device according to claim 1, characterized in that, The bottom of the transfer bucket (80) is provided with an avoidance groove (86).

7. The mechanism box replacement auxiliary device according to claim 1, characterized in that, The outer end of the locking member (95) is provided with a locking part (98) that corresponds to the side of the rotating disk.

8. The mechanism box replacement auxiliary device according to claim 7, characterized in that, When the positioning component (91) is installed, a locking part receiving groove (911) for accommodating the locking part (98) is opened on the side facing the base turntable (31), the boom turntable (32), or the transfer bucket turntable (33).

9. The mechanism box replacement auxiliary device according to claim 1, characterized in that, The positioning member (91) is also provided with a mounting hole (99), the extension direction of the mounting hole (99) is consistent with the extension direction of the locking member mounting hole (94), and a reset spring (910) is provided in the mounting hole (99). One end of the reset spring (910) is connected to the hole wall of the mounting hole (99), and the other end is connected to the inner end of the locking member (95).

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