Auxiliary winch dismounting and mounting device, engineering machinery and auxiliary winch mounting method

Abstract

The invention provides an auxiliary winch dismounting and mounting device, engineering machinery and an auxiliary winch mounting method.The auxiliary winch dismounting and mounting device comprises a main winch and a loading and unloading mechanism, the loading and unloading mechanism comprises a pull rope and a rotating seat, the pull rope is used for being connected with the main winch and the auxiliary winch, and the rotating seat is used for being rotationally connected with the auxiliary winch; when the auxiliary winch is installed on the rotary table, the two ends of the pull rope are connected with the main winch and the auxiliary winch respectively, and the main winch drives the auxiliary winch to rotate around the rotary base through the pull rope so that the installation part on the auxiliary winch can correspond to the connecting part on the rotary table. According to the auxiliary winch dismounting device, auxiliary mounting and dismounting of the auxiliary winch are achieved through the loading and unloading mechanism, and the auxiliary winch dismounting device is simple in structure, convenient to operate, low in manufacturing cost and maintenance cost, small in size and convenient to carry on a vehicle.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, and in particular to a secondary winch disassembly and assembly device, engineering machinery, and a secondary winch installation method. Background Technology

[0002] Cranes are a type of commonly used construction machinery. A crane generally consists of a lower chassis and an upper lifting device. The lower chassis facilitates the movement, transportation, and relocation of the crane, while the upper lifting device provides lifting operation functions such as luffing, slewing, and hoisting.

[0003] A winch is a crucial component of a crane's lifting system, directly impacting the lifting of loads. A winch typically consists of a hydraulic motor, a reducer, and a drum. The hydraulic motor drives the drum to rotate via the reducer, thus enabling the winding and unwinding of the wire rope. Some cranes are equipped with a main winch and an auxiliary winch; the main winch is fixedly mounted on the turntable, while the auxiliary winch is detachably mounted on the turntable.

[0004] Currently, when installing or removing the auxiliary winch from the turntable, it is generally done by using hoisting equipment for auxiliary hoisting, which is not only inconvenient to operate but also has high construction costs. Summary of the Invention

[0005] The purpose of this invention is to provide a secondary winch assembly and disassembly device, which achieves auxiliary installation and disassembly of the secondary winch by setting up an assembly and disassembly mechanism. It is not only simple in structure and easy to operate, but also has low manufacturing and maintenance costs, and is small in size, making it easy to carry in a vehicle.

[0006] This invention provides a secondary winch assembly / disassembly device, including a main winch and an assembly / disassembly mechanism. The assembly / disassembly mechanism includes a pull rope and a rotating seat. The pull rope is used to connect with the main winch and the secondary winch, and the rotating seat is used to rotatably connect with the secondary winch. When the auxiliary winch is installed on the turntable, the two ends of the pull rope are connected to the main winch and the auxiliary winch respectively. The main winch drives the auxiliary winch to rotate around the rotating base through the pull rope, so that the mounting part on the auxiliary winch corresponds to the connecting part on the turntable.

[0007] Furthermore, the auxiliary winch assembly / disassembly device also includes a counterweight, and the rotating seat is disposed on the counterweight; when the auxiliary winch is installed on the turntable, the auxiliary winch is placed on the counterweight.

[0008] Furthermore, the main winch includes a speed reducer and a drum, with the speed reducer being drivenly connected to the drum; the loading and unloading mechanism also includes a rope seat, which is disposed on the speed reducer or the drum, and is used to connect to one end of the rope, with a rope groove on the rope seat for accommodating the rope.

[0009] Furthermore, the auxiliary winch is provided with a rotating shaft, and the rotating seat is provided with a rotating groove, which is used to rotatably connect with the rotating shaft.

[0010] Furthermore, the rotating groove has a slot, which is located on the side of the rotating seat away from the main winch. The slot is used for the rotating shaft to be engaged into or separated from the rotating groove.

[0011] Furthermore, the auxiliary winch is provided with a support surface, and the rotating shaft is located on one side of the support surface; the auxiliary winch assembly and disassembly device also includes a counterweight, and the rotating seat is disposed on the upper surface of the counterweight; When the auxiliary winch is installed on the turntable, the auxiliary winch is placed on the counterweight, the supporting surface of the auxiliary winch is in contact with the upper surface of the counterweight, and the rotating shaft is locked in the rotating groove.

[0012] Furthermore, the auxiliary winch has a mounting surface, the mounting part is disposed on the mounting surface, and the included angle between the supporting surface and the mounting surface is an acute angle.

[0013] Furthermore, the mounting portion includes an upper mounting portion and a lower mounting portion spaced apart from top to bottom, and the connecting portion includes an upper connecting portion and a lower connecting portion spaced apart from top to bottom, wherein the upper connecting portion and the lower connecting portion are respectively used to connect to the upper mounting portion and the lower mounting portion; When the auxiliary winch is installed on the turntable, the main winch first drives the auxiliary winch to rotate around the rotating seat via the pull rope, so that the lower mounting part corresponds to the lower connecting part. After the lower mounting part and the lower connecting part are connected, the main winch then drives the auxiliary winch to rotate around the lower connecting part via the pull rope, so that the auxiliary winch is separated from the rotating seat and the upper mounting part corresponds to the upper connecting part. Then the upper mounting part and the upper connecting part are connected.

[0014] The present invention also provides an engineering machine, including a chassis, a turntable disposed on the chassis, an auxiliary winch, and an auxiliary winch disassembly and assembly device as described above.

[0015] The present invention also provides a method for installing a secondary winch based on the secondary winch disassembly and assembly device described above, the method comprising: Connect the auxiliary winch to the rotating base by rotation, and connect both ends of the pull rope to the main winch and the auxiliary winch respectively; The main winch is controlled to operate. The main winch drives the auxiliary winch to rotate around the rotating base by pulling rope, so that the mounting part on the auxiliary winch corresponds to the connecting part on the turntable, and then the mounting part and the connecting part are connected.

[0016] The auxiliary winch assembly / disassembly device provided by this invention, through the additional installation and disassembly mechanism, works in conjunction with the main winch to achieve the auxiliary installation and disassembly of the auxiliary winch. Since the main winch is an existing structural component of the construction machinery, and the installation and disassembly mechanism only includes structures such as pull ropes and rotating seats, this mechanism is not only simple in structure, with low manufacturing and maintenance costs, but also small in size, making it easy to carry on a vehicle. Furthermore, compared to existing methods of auxiliary lifting of the auxiliary winch using hoisting equipment, this mechanism facilitates loading and unloading operations, has higher efficiency, and provides a more stable and reliable process, resulting in better safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the engineering machinery in an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the secondary winch in an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the rope seat installed on the reducer in an embodiment of the present invention.

[0020] Figure 4 This is a partial structural diagram of the engineering machinery in an embodiment of the present invention when the auxiliary winch is in the first state.

[0021] Figure 5 for Figure 4 A magnified view of a portion of location A in the diagram.

[0022] Figure 6 for Figure 4 A magnified view of a portion of the area at position B.

[0023] Figure 7 This is a partial structural diagram of the engineering machinery in an embodiment of the present invention when the auxiliary winch is in the second state.

[0024] Figure 8 This is a partial structural diagram of the engineering machinery in the third state according to an embodiment of the present invention. Detailed Implementation

[0025] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0026] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The directional terms such as "up," "down," "left," "right," "front," "back," "top," and "bottom" (if present) used in the specification and claims of this invention are defined by the position of the structures in the drawings and the relative positions of the structures, and are only for the clarity and convenience of expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed in this application.

[0028] like Figures 1 to 8 As shown, this embodiment of the invention provides a secondary winch assembly / disassembly device for assisting in the installation of a secondary winch 3 onto or from a turntable 2. The device includes a main winch 5 and a loading / unloading mechanism 6. The mechanism 6 includes a pull rope 61 and a rotating seat 62, the rotating seat 62 being rotatably connected to the secondary winch 3. The two ends of the pull rope 61 are respectively connected to the main winch 5 and the secondary winch 3. The secondary winch 3 is provided with an installation part 30, and the turntable 2 is provided with a connecting part 20.

[0029] When installing the auxiliary winch 3 onto the turntable 2, the two ends of the pull rope 61 are connected to the main winch 5 and the auxiliary winch 3 respectively. The main winch 5 drives the auxiliary winch 3 to rotate around the rotating base 62 via the pull rope 61, so that the mounting part 30 on the auxiliary winch 3 corresponds to the connecting part 20 on the turntable 2 (i.e., the mounting part 30 is aligned with the connecting part 20), thereby connecting the mounting part 30 and the connecting part 20. The main winch 5 provides the power source to drive the auxiliary winch 3 to rotate via the pull rope 61. Simultaneously, the loading and unloading mechanism 6 can also be used to disassemble the auxiliary winch 3; the steps for disassembling the auxiliary winch 3 from the turntable 2 are the reverse of the installation steps described above.

[0030] The auxiliary winch assembly / disassembly device provided in this embodiment, through the additional loading / unloading mechanism 6, works in conjunction with the main winch 5 to assist in the installation and disassembly of the auxiliary winch 3. Since the main winch 5 is an existing structural component of the construction machinery, and the loading / unloading mechanism 6 only includes structures such as the pull rope 61 and the rotating seat 62, this loading / unloading mechanism 6 is not only simple in structure, with low manufacturing and maintenance costs, but also small in size, making it easy to carry on a vehicle. Furthermore, compared to existing methods of auxiliary lifting of the auxiliary winch using hoisting equipment, this loading / unloading mechanism 6 facilitates loading and unloading operations, has higher assembly and disassembly efficiency, and provides a more stable and reliable process with better safety.

[0031] Furthermore, such as Figures 1 to 4As shown, in this embodiment, the auxiliary winch assembly / disassembly device also includes a counterweight 4, and a rotating seat 62 is disposed on the counterweight 4. When the auxiliary winch 3 is installed onto the turntable 2, the counterweight 4 is placed on the chassis 1 of the construction machinery, and the auxiliary winch 3 is placed on the counterweight 4. At this time, the counterweight 4 provides support and elevation for the auxiliary winch 3. After the auxiliary winch 3 is placed on the counterweight 4, the height of the auxiliary winch 3 is close to or level with the height of the turntable 2, that is, the counterweight 4 can support the auxiliary winch 3 in the assembly position. Since the counterweight 4 is an existing structural component of the construction machinery, using the counterweight 4 as the supporting component for the auxiliary winch 3 will not increase additional costs. Of course, in other embodiments, a bracket (not shown) can also be additionally provided, and the rotating seat 62 is disposed on the bracket; when the auxiliary winch 3 is installed onto the turntable 2, the bracket is placed on the chassis 1 of the construction machinery, and the auxiliary winch 3 is placed on the bracket.

[0032] Furthermore, in this embodiment, the pull rope can be a steel wire rope. The rotating seat 62 is made of metal, such as wear-resistant steel, and can be fixed to the counterweight 4 by welding, screwing, or other methods.

[0033] Furthermore, such as Figures 1 to 4 As shown, in this embodiment, both the mounting part 30 and the connecting part 20 are provided with mounting holes (not labeled). When the auxiliary winch 3 is installed on the turntable 2, after the auxiliary winch 3 rotates around the rotating seat 62 by a certain angle, the mounting holes on the mounting part 30 are aligned with the mounting holes on the connecting part 20. Then, the mounting holes on the mounting part 30 and the mounting holes on the connecting part 20 are connected by a pin (not shown) to install the auxiliary winch 3 on the turntable 2.

[0034] Furthermore, such as Figures 1 to 4 and Figure 8 As shown, in this embodiment, the connecting part 20 is disposed on the rear side wall of the turntable 2, the main winch 5 is disposed on the rear end of the turntable 2, and the auxiliary winch 3 is installed on the rear side wall of the turntable 2. When the auxiliary winch 3 is installed on the turntable 2, the counterweight 4 is placed on the chassis 1 and located below the rear end of the turntable 2, and the rear end of the turntable 2 and the counterweight 4 are vertically spaced apart (i.e., they do not interfere with each other), and the auxiliary winch 3 is placed on the counterweight 4 and located on one side of the rear end of the turntable 2.

[0035] Furthermore, such as Figures 1 to 6 As shown, in this embodiment, the main winch 5 includes a hydraulic motor (not shown), a reducer 51, and a drum (not shown). The hydraulic motor is driven by the reducer 51, and the reducer 51 is driven by the drum. The drum is used to connect to the hoisting rope (not shown, the hoisting rope is generally a steel wire rope). The hydraulic motor drives the drum to rotate through the reducer 51, thereby realizing the winding and unwinding of the hoisting rope. For the specific structure and function of the main winch 5, please refer to the prior art, which will not be elaborated here.

[0036] In this embodiment, one end of the pull rope 61 is connected to the reducer 51 to drive the auxiliary winch 3 to rotate. Of course, in other embodiments, one end of the pull rope 61 can also be connected to the drum to drive the auxiliary winch 3 to rotate.

[0037] Furthermore, such as Figures 1 to 6 As shown, in this embodiment, the loading and unloading mechanism 6 further includes a rope seat 63, which is fixedly mounted on the reducer 51. Specifically, the rope seat 63 and the reducer 51 can be fixed by welding, screwing, or other methods. The rope seat 63 is used to connect to one end of the rope 61. The rope seat 63 is provided with a fixing structure for connecting to the rope 61 (not shown in the figure, the fixing structure can be a hook structure, etc.), and the rope seat 63 is provided with a rope groove 630 for accommodating the rope 61. When connecting the pull rope 61 to the pull rope seat 63, one end of the pull rope 61 is connected to a fixed structure on the pull rope seat 63. When the reducer 51 rotates, it drives the pull rope seat 63 to rotate, causing the pull rope 61 to wind into or unwind from the rope groove 630, thus achieving the rotation of the auxiliary winch 3. Simultaneously, since the winding and unwinding length of the pull rope 61 is generally small, the width of the rope groove 630 does not need to be large; the width of the rope groove 630 only needs to be large enough to accommodate the width of a single strand of rope. The specific structure and form of the pull rope seat 63 can be varied, as long as it can realize the winding and unwinding of the pull rope 61 (the specific structure of the pull rope seat 63 can be referenced, for example, the structure of a pulley). Of course, in other embodiments, the pull rope seat 63 can also be fixedly mounted on a drum.

[0038] Furthermore, such as Figures 1 to 6 As shown, in this embodiment, the rope seats 63 are disposed on opposite sides of the reducer 51 (specifically, the rope seats 63 are disposed on opposite sides of the rim of the reducer 51). There are two ropes 61, and the rope seats 63 on opposite sides are connected to the two sides of the auxiliary winch 3 via the ropes 61, so that the forces on both sides of the auxiliary winch 3 are balanced, enabling more stable rotation. Of course, in other embodiments, the rope seats 63 can also be disposed on opposite sides of the drum.

[0039] Furthermore, such as Figure 1 and Figure 4As shown, in this embodiment, the loading and unloading mechanism 6 further includes a pulley assembly 64. The pulley assembly 64 is disposed on the turntable 2 and located between the main winch 5 and the auxiliary winch 3. Specifically, the pulley assembly 64 is disposed on the upper surface of the rear end of the turntable 2. The pulley rope 61 is connected to the pulley assembly 64, and the pulley assembly 64 is used to support the pulley rope 61. On the one hand, the pulley assembly 64 can change the direction of the tension of the pulley rope 61, so that the pulley rope 61 can better apply tension to the auxiliary winch 3; on the other hand, the pulley assembly 64 can support and raise the pulley rope 61 to avoid interference between the pulley rope 61 and the turntable 2, which would cause wear on the pulley rope 61 / turntable 2. The pulley assembly 64 generally includes a pulley seat and a pulley rotatably connected to the pulley seat. The pulley seat is fixed on the turntable 2, and the pulley is used to connect to the pulley rope 61. For the specific structure of the pulley assembly 64, please refer to the prior art, which will not be described in detail here. Of course, in other embodiments, when there is no interference between the pull rope 61 and the turntable 2, the pulley assembly 64 may not be provided.

[0040] Furthermore, such as Figures 1 to 5 As shown, in this embodiment, the auxiliary winch 3 is provided with a rotating shaft 33, and the rotating seat 62 is provided with a rotating groove 621, which is used for rotatably connecting with the rotating shaft 33. In this embodiment, the rotating shaft 33 has a cylindrical structure, specifically a round bar, and can be welded and fixed to the auxiliary winch 3; the inner wall of the rotating groove 621 has an arc-shaped structure, specifically an arc-shaped structure, and the diameter of the rotating groove 621 matches the outer diameter of the rotating shaft 33. The rotating groove 621 has a slot 620, which is located on the side of the rotating seat 62 away from the main winch 5, and the slot 620 is used for the rotating shaft 33 to be inserted into or separated from the rotating groove 621. Specifically, as shown... Figure 4 and Figure 5 As shown, when the auxiliary winch 3 is placed on the counterweight 4, the rotating shaft 33 can be inserted into the rotating groove 621 through the slot 620, so that the rotating shaft 33 can rotate within the rotating groove 621; as Figure 8 As shown, when the auxiliary winch 3 is fully installed on the turntable 2, the rotating shaft 33 can be disengaged from the rotating slot 621 through the slot 620 to avoid interference between the auxiliary winch 3 and the rotating seat 62 after installation.

[0041] Furthermore, such as Figures 1 to 5 As shown, in this embodiment, the auxiliary winch 3 has a support surface 34, which is a planar structure, and the rotating shaft 33 is located on one side of the support surface 34. The rotating seat 62 is disposed on the upper surface of the counterweight 4. When the auxiliary winch 3 is placed on the counterweight 4, the support surface 34 is used to contact the upper surface of the counterweight 4. The auxiliary winch 3 has a mounting surface 35, and a mounting part 30 is disposed on the mounting surface 35. The mounting part 30 can be fixed to the mounting surface 35 by welding, screwing, or other methods. Figure 2 and Figure 4 As shown, when the auxiliary hoist 3 has not yet been installed on the turntable 2, the mounting surface 35 is located above the support surface 34. The included angle α between the support surface 34 and the mounting surface 35 is an acute angle, that is, the support surface 34 is not perpendicular to the mounting surface 35, that is, the support surface 34 is an inclined surface that is inclined relative to the mounting surface 35; specifically, the included angle α can be 20°~80°, or 30°~60°, etc.

[0042] With this setting, such as Figure 4 and Figure 5 As shown, when the auxiliary winch 3 is installed on the turntable 2, the auxiliary winch 3 is placed on the counterweight 4, and the supporting surface 34 of the auxiliary winch 3 is in contact with the upper surface of the counterweight 4 to provide stable support for the auxiliary winch 3. At the same time, the rotating shaft 33 can be smoothly locked in the rotating groove 621, and at this time, space is reserved between the auxiliary winch 3 and the turntable 2 for the auxiliary winch 3 to rotate toward the turntable 2; Figure 8 As shown, when the auxiliary winch 3 is fully installed on the turntable 2, the supporting surface 34 of the auxiliary winch 3 can be completely separated from the upper surface of the counterweight 4, and the rotating shaft 33 can be completely separated from the rotating seat 62, so as to avoid interference between the auxiliary winch 3 and the rotating seat 62 after installation. At the same time, when the auxiliary winch 3 is removed from the turntable 2, after the mounting part 30 and the connecting part 20 are disassembled, when the supporting surface 34 of the auxiliary winch 3 contacts the upper surface of the counterweight 4, the auxiliary winch 3 can be completely separated from the turntable 2 (see reference). Figure 4 This is to avoid interference between the auxiliary hoist 3 and the turntable 2.

[0043] Furthermore, such as Figures 1 to 5 As shown, in this embodiment, the auxiliary winch 3 also has a connecting surface 37, which connects the support surface 34 and the mounting surface 35 (the support surface 34, the mounting surface 35, and the connecting surface 37 are all surfaces of the auxiliary winch 3). The rotating shaft 33 is disposed on the connecting surface 37. Specifically, the rotating shaft 33 is disposed on the side of the connecting surface 37 close to the support surface 34; of course, the rotating shaft 33 can also be disposed in other positions. By disposing of the rotating shaft 33 on the connecting surface 37, when the auxiliary winch 3 is placed on the counterweight 4, it can be ensured that the rotating shaft 33 is smoothly locked in the rotating groove 621, while ensuring that the support surface 34 of the auxiliary winch 3 is in close contact with the upper surface of the counterweight 4 (if the rotating shaft 33 is disposed on the support surface 34, when the auxiliary winch 3 is placed on the counterweight 4, the rotating shaft 33 will contact the upper surface of the counterweight 4, making it impossible for the auxiliary winch 3 to be placed close to the upper surface of the counterweight 4, affecting the stability of the auxiliary winch 3). In this embodiment, the angle between the connecting surface 37 and the supporting surface 34 is an obtuse angle, and the angle between the connecting surface 37 and the mounting surface 35 is a right angle, that is, the connecting surface 37 and the mounting surface 35 are perpendicular to each other; of course, in other embodiments, the connecting surface 37 and the supporting surface 34 and the mounting surface 35 can also have other angular relationships.

[0044] Furthermore, such as Figure 2 , Figure 4 , Figure 7 and Figure 8 As shown, in this embodiment, the mounting portion 30 includes an upper mounting portion 31 and a lower mounting portion 32 spaced apart from top to bottom, and the connecting portion 20 includes an upper connecting portion 21 and a lower connecting portion 22 spaced apart from top to bottom. The upper connecting portion 21 is located directly above the lower connecting portion 22, and the upper connecting portion 21 and the lower connecting portion 22 are respectively used to connect to the upper mounting portion 31 and the lower mounting portion 32. In this embodiment, as... Figure 4 As shown, when the auxiliary hoist 3 has not yet been installed on the turntable 2, the upper mounting part 31 is located diagonally above the lower mounting part 32; as Figure 8 As shown, when the auxiliary winch 3 is installed on the turntable 2, the upper mounting part 31 is located directly above the lower mounting part 32.

[0045] like Figure 4 and Figure 7 As shown, when the auxiliary winch 3 is installed onto the turntable 2, the main winch 5 first drives the auxiliary winch 3 to rotate around the rotating base 62 via the pull rope 61, so that the lower mounting part 32 corresponds to the lower connecting part 22; as Figure 7 and Figure 8 As shown, after the lower mounting part 32 is connected to the lower connecting part 22 (specifically via a pin), the main winch 5 drives the auxiliary winch 3 to rotate around the lower connecting part 22 via the pull rope 61, causing the auxiliary winch 3 to separate from the rotating seat 62 and aligning the upper mounting part 31 with the upper connecting part 21. Then, the upper mounting part 31 is connected to the upper connecting part 21 (specifically via a pin). Of course, in other embodiments, when the mounting part 30 and the connecting part 20 have other structures, the mounting part 30 and the connecting part 20 can also have other installation steps and methods.

[0046] Furthermore, such as Figures 1 to 4 As shown, in this embodiment, the auxiliary winch 3 is provided with a connecting seat 36 for connecting to the pull rope 61. The connecting seat 36 is located above the mounting part 30, specifically above the upper mounting part 31. Specifically, as... Figure 4 As shown, when the auxiliary winch 3 has not yet been installed on the turntable 2, the connecting seat 36 is located diagonally above the mounting portion 30; Figure 8 As shown, after the auxiliary winch 3 is installed on the turntable 2, the connecting seat 36 is located diagonally above (or directly above) the mounting part 30. This arrangement facilitates the pull rope 61 to apply tension to the auxiliary winch 3 through the connecting seat 36, thereby promoting the rotation of the auxiliary winch 3, while also preventing interference between the pull rope 61 and the mounting part 30.

[0047] In this embodiment, the auxiliary winch 3 also has a side surface 38, which is adjacent to the mounting surface 35 and spaced apart from the connecting surface 37. The connecting seat 36 can be fixed to the side surface 38 by welding, screwing, or other methods. Of course, in other embodiments, the connecting seat 36 can also be disposed on the mounting surface 35 or in other positions. In this embodiment, the connecting seats 36 are disposed on opposite sides of the auxiliary winch 3, and the connecting seats 36 on opposite sides are respectively used to connect to the two pull ropes 61.

[0048] In this embodiment, the connector 36, the mounting part 30, and the connector 20 can all be in the form of an ear plate.

[0049] This invention also provides an engineering machinery, including a chassis 1, a turntable 2 mounted on the chassis 1, an auxiliary winch 3, and the auxiliary winch disassembly and assembly device described above. The main winch 5 is mounted on the turntable 2, which can rotate horizontally relative to the chassis 1. In this embodiment, the engineering machinery is a crane, specifically a truck crane, an all-terrain crane, etc.; of course, in other embodiments, the engineering machinery can also be other equipment with winches.

[0050] Furthermore, such as Figure 1 As shown, in this embodiment, the chassis 1 is equipped with a traveling component (not labeled), which may include tires, tracks, etc. The turntable 2 is equipped with a boom 7. Other structures of the construction machinery can be found in the prior art and will not be described in detail here.

[0051] This invention also provides a method for installing a secondary winch based on the above-described secondary winch disassembly and assembly device, the method comprising: S11: Rotate the auxiliary winch 3 to the rotating seat 62, and connect the two ends of the pull rope 61 to the main winch 5 and the auxiliary winch 3 respectively; S12: Control the operation of the main winch 5. The main winch 5 drives the auxiliary winch 3 to rotate around the rotating seat 62 toward the side closer to the turntable 2 via the pull rope 61, so that the mounting part 30 on the auxiliary winch 3 corresponds to the connecting part 20 on the turntable 2, and then the mounting part 30 is connected to the connecting part 20.

[0052] Furthermore, in this embodiment, the above-mentioned step S11 specifically includes: Place the counterweight 4 on the chassis 1, place the auxiliary winch 3 on the counterweight 4, and make the auxiliary winch 3 rotatably connected to the rotating seat 62 (i.e., the rotating shaft 33 is inserted into the rotating groove 621); connect the two ends of the pull rope 61 to the main winch 5 and the auxiliary winch 3 respectively.

[0053] Furthermore, in this embodiment, step S12 specifically includes: like Figure 4 and Figure 7As shown, the main winch 5 is controlled to operate. The main winch 5 first drives the auxiliary winch 3 to rotate around the rotating base 62 towards the side closer to the turntable 2 via the pull rope 61 (i.e., the pull rope 61 is wound up), so that the lower mounting part 32 corresponds to the lower connecting part 22; as shown Figure 7 and Figure 8 As shown, after connecting the lower mounting part 32 to the lower connecting part 22, the main winch 5 drives the auxiliary winch 3 to continue rotating around the lower connecting part 22 toward the side closer to the turntable 2 via the pull rope 61, so that the auxiliary winch 3 separates from the rotating seat 62 and makes the upper mounting part 31 correspond to the upper connecting part 21, and then connects the upper mounting part 31 to the upper connecting part 21.

[0054] The following details the operating steps for installing this winch: 1. The outriggers of the construction machinery are deployed and horizontally supported on a flat and solid ground.

[0055] 2. The operator manipulates the construction machinery to place the counterweight 4 yards at the designated position at the front end of the chassis 1.

[0056] 3. The operator manipulates the construction machinery to hoist the auxiliary winch 3 onto the upper surface of the counterweight 4, and makes the rotating shaft 33 on the auxiliary winch 3 engage in the rotating groove 621 on the rotating seat 62.

[0057] 4. Pre-rotate the main winch 5 so that the fixing structure on the rope seat 63 faces upwards, facilitating the installation and fixing of the rope 61. Then connect one end of the rope 61 to the fixing structure on the rope seat 63, and connect the other end of the rope 61 to the connecting seat 36 on the auxiliary winch 3 after passing over the pulley assembly 64 (see...). Figure 4 ).

[0058] 5. Control the operation of the main winch 5 to wind up the pull rope 61. The main winch 5 drives the auxiliary winch 3 to rotate around the rotating seat 62 towards the side closer to the turntable 2 via the pull rope 61 until the mounting hole on the lower mounting part 32 aligns with the mounting hole on the lower connecting part 22. The main winch 5 then stops operating. Finally, the lower mounting part 32 and the lower connecting part 22 are connected by a pin (see...). Figure 7 ).

[0059] 6. Continue to control the operation of the main winch 5. The main winch 5 drives the auxiliary winch 3 to continue rotating around the lower connecting part 22 towards the side closer to the turntable 2 via the pull rope 61, so that the rotating shaft 33 on the auxiliary winch 3 separates from the rotating seat 62 until the mounting hole on the upper mounting part 31 aligns with the mounting hole on the upper connecting part 21. The main winch 5 stops operating. Then, the upper mounting part 31 and the upper connecting part 21 are connected by a pin (see...). Figure 8 ).

[0060] 7. Disconnect the pull rope 61 from the connecting seat 36 on the auxiliary winch 3. Then, control the main winch 5 to reverse so that the fixing structure on the pull rope seat 63 faces upward. Then, disconnect the pull rope 61 from the pull rope seat 63. At this point, the installation of the auxiliary winch 3 is complete. After the pull rope 61 is removed, it can be placed in a toolbox or other designated location for easy access when disassembling the auxiliary winch 3.

[0061] This invention also provides a method for disassembling a secondary winch based on the above-mentioned secondary winch disassembly and assembly device, the method comprising: S21: Place the counterweight 4 on the chassis 1, and connect the two ends of the pull rope 61 to the main winch 5 and the auxiliary winch 3 respectively. S22: Separate the mounting part 30 from the connecting part 20, and control the main winch 5 to operate, so that the auxiliary winch 3 rotates around the rotating seat 62 toward the side away from the turntable 2, so that the auxiliary winch 3 rests on the counterweight 4 and is completely separated from the turntable 2.

[0062] Furthermore, in this embodiment, step S22 specifically includes: like Figure 7 and Figure 8 As shown, first separate the upper mounting part 31 from the upper connecting part 21, then control the main winch 5 to operate, causing the auxiliary winch 3 to rotate around the lower connecting part 22 towards the side away from the turntable 2 (i.e., unwinding the rope 61), until the auxiliary winch 3 contacts the rotating seat 62 (i.e., the rotating shaft 33 is engaged in the rotating groove 621); as Figure 4 and Figure 7 As shown, the lower mounting part 32 and the lower connecting part 22 are then separated, and the main winch 5 is controlled to operate so that the auxiliary winch 3 continues to rotate around the rotating seat 62 toward the side away from the turntable 2, so that the auxiliary winch 3 rests on the counterweight 4 and is completely separated from the turntable 2.

[0063] The specific operating steps for disassembling the auxiliary winch are the opposite of those for installing the auxiliary winch, and will not be repeated here.

[0064] This embodiment utilizes the existing structure of construction machinery, taking advantage of the idle state of the main winch 5 before operation to provide a reliable power source for the disassembly and assembly of the auxiliary winch 3. Without adding too many components, it achieves the self-disassembly and assembly function of the auxiliary winch 3. Compared to existing methods that use hoisting equipment to assist in the hoisting of the auxiliary winch, this loading and unloading mechanism 6 is not only simple to operate, but also has a more stable and reliable structure, better safety, and a simpler structure with lower manufacturing and maintenance costs.

[0065] 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. A secondary winch assembly / disassembly device, characterized in that, It includes a main winch (5) and a loading and unloading mechanism (6). The loading and unloading mechanism (6) includes a pull rope (61) and a rotating seat (62). The pull rope (61) is used to connect with the main winch (5) and the auxiliary winch (3). The rotating seat (62) is used to rotatably connect with the auxiliary winch (3). When the auxiliary winch (3) is installed on the turntable (2), the two ends of the pull rope (61) are connected to the main winch (5) and the auxiliary winch (3) respectively. The main winch (5) drives the auxiliary winch (3) to rotate around the rotating seat (62) through the pull rope (61) so that the mounting part (30) on the auxiliary winch (3) corresponds to the connecting part (20) on the turntable (2).

2. The auxiliary winch assembly / disassembly device as described in claim 1, characterized in that, The auxiliary winch assembly and disassembly device also includes a counterweight (4), and the rotating seat (62) is disposed on the counterweight (4); when the auxiliary winch (3) is installed on the turntable (2), the auxiliary winch (3) is placed on the counterweight (4).

3. The auxiliary winch assembly / disassembly device as described in claim 1, characterized in that, The main winch (5) includes a reducer (51) and a drum, the reducer (51) being connected to the drum in a drive; the loading and unloading mechanism (6) also includes a rope seat (63), the rope seat (63) being disposed on the reducer (51) or the drum, the rope seat (63) being used to connect to one end of the rope (61), and the rope seat (63) being provided with a rope groove (630) for accommodating the rope (61).

4. The auxiliary winch disassembly and assembly device as described in claim 1, characterized in that, The auxiliary winch (3) is provided with a rotating shaft (33), and the rotating seat (62) is provided with a rotating groove (621), which is used to rotatably connect with the rotating shaft (33).

5. The auxiliary winch disassembly and assembly device as described in claim 4, characterized in that, The rotating groove (621) has a slot (620). The slot (620) of the rotating groove (621) is located on the side of the rotating seat (62) away from the main winch (5). The slot (620) of the rotating groove (621) is used for the rotating shaft (33) to be inserted into the rotating groove (621) or separated from the rotating groove (621).

6. The auxiliary winch disassembly and assembly device as described in claim 4, characterized in that, The auxiliary winch (3) is provided with a support surface (34), and the rotating shaft (33) is located on one side of the support surface (34); the auxiliary winch disassembly and assembly device also includes a counterweight (4), and the rotating seat (62) is disposed on the upper surface of the counterweight (4); When the auxiliary winch (3) is installed on the turntable (2), the auxiliary winch (3) is placed on the counterweight (4), the support surface (34) of the auxiliary winch (3) is in contact with the upper surface of the counterweight (4), and the rotating shaft (33) is locked in the rotating groove (621).

7. The auxiliary winch disassembly and assembly device as described in claim 6, characterized in that, The auxiliary winch (3) has a mounting surface (35), the mounting part (30) is disposed on the mounting surface (35), and the included angle (a) between the support surface (34) and the mounting surface (35) is an acute angle.

8. The auxiliary winch disassembly and assembly device as described in any one of claims 1-7, characterized in that, The mounting part (30) includes an upper mounting part (31) and a lower mounting part (32) spaced apart from top to bottom, and the connecting part (20) includes an upper connecting part (21) and a lower connecting part (22) spaced apart from top to bottom. The upper connecting part (21) and the lower connecting part (22) are respectively used to connect to the upper mounting part (31) and the lower mounting part (32). When the auxiliary winch (3) is installed on the turntable (2), the main winch (5) first drives the auxiliary winch (3) to rotate around the rotating seat (62) via the pull rope (61) so that the lower mounting part (32) corresponds to the lower connecting part (22). After the lower mounting part (32) is connected to the lower connecting part (22), the main winch (5) drives the auxiliary winch (3) to rotate around the lower connecting part (22) via the pull rope (61) so that the auxiliary winch (3) is separated from the rotating seat (62) and the upper mounting part (31) corresponds to the upper connecting part (21). Then the upper mounting part (31) is connected to the upper connecting part (21).

9. An engineering machinery, characterized in that, It includes a chassis (1), a turntable (2) disposed on the chassis (1), an auxiliary winch (3), and an auxiliary winch disassembly and assembly device as described in any one of claims 1-8.

10. A method for installing a secondary winch based on the secondary winch disassembly and assembly device as described in any one of claims 1-8, characterized in that, The method for installing the auxiliary winch includes: Connect the auxiliary winch (3) to the rotating seat (62) in a rotating manner, and connect the two ends of the pull rope (61) to the main winch (5) and the auxiliary winch (3) respectively; Control the operation of the main winch (5). The main winch (5) drives the auxiliary winch (3) to rotate around the rotating seat (62) via the pull rope (61) so that the mounting part (30) on the auxiliary winch (3) corresponds to the connecting part (20) on the turntable (2). Then the mounting part (30) and the connecting part (20) are connected.

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