Auxiliary winch self-loading and unloading crane and auxiliary winch self-loading and unloading method

Abstract

The present invention provides a secondary hoist self-loading and unloading crane and a secondary hoist self-loading and unloading method. The secondary hoist self-loading and unloading crane includes a turntable, a secondary hoist, a lifting device, a counterweight and a positioning and adjusting member; the lifting device is adapted to be connected to the counterweight to drive the counterweight to lift between a first height and a second height, and the first height is greater than the second height; the turntable is provided with a first connecting portion, and the secondary hoist is provided with a second connecting portion, and the first connecting portion is used for detachably connecting with the second connecting portion; the positioning and adjusting member is arranged between the counterweight and the secondary hoist to determine the position and attitude of the secondary hoist on the counterweight, so that in the case where the secondary hoist is in a first position and the counterweight is at the first height, the first connecting portion and the second connecting portion are in a matching state. The present invention can complete the loading and unloading of the secondary hoist by using the self-structure of the crane, which is not only simple and convenient to operate, has a low operation cost, but also can improve the installation efficiency of the secondary hoist and reduce the safety hazards during loading and unloading.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and particularly to a secondary hoist self-loading and unloading crane and a secondary hoist self-loading and unloading method. Background Art

[0002] A crane is a multi-action lifting machine that can vertically lift and horizontally transport heavy objects within a certain range.

[0003] In lifting operations, the secondary hoist is an optional mechanism and generally needs to be temporarily installed according to the requirements of the working conditions. When installing the secondary hoist, due to its large weight, external auxiliary lifting equipment is often required for installation. However, this installation method not only has high costs and low efficiency but also has potential safety hazards. Therefore, how to quickly, efficiently, and low-cost install and disassemble the secondary hoist has become the key to improving the efficiency of lifting operations and the competitiveness of products. Summary of the Invention

[0004] The present invention provides a secondary hoist self-loading and unloading crane and a secondary hoist self-loading and unloading method to solve or improve at least one of the current technical problems and achieve efficient loading and unloading of the secondary hoist on the crane.

[0005] The present invention provides a secondary hoist self-loading and unloading crane, including: a turntable, a secondary hoist, a lifting device, a counterweight, and a positioning and adjusting member; the lifting device is adapted to be connected to the counterweight to drive the counterweight to lift between a first height and a second height, and the first height is greater than the second height; the turntable is provided with a first connecting portion, and the secondary hoist is provided with a second connecting portion, and the first connecting portion is used for detachably connecting with the second connecting portion; during the installation or disassembly of the secondary hoist, the secondary hoist is used to switch between a first position on the counterweight and a second position away from the counterweight under the lifting of the crane; the positioning and adjusting member is adapted to be arranged between the counterweight and the secondary hoist to determine the position and attitude of the secondary hoist on the counterweight, so that when the secondary hoist is in the first position and the counterweight is at the first height, the first connecting portion and the second connecting portion are in a matching state.

[0006] According to a secondary hoist self-loading and unloading crane provided by the present invention, a first positioning structure is provided at the top of the counterweight, and a second positioning structure is provided at the bottom of the secondary hoist. The first end of the positioning and adjusting member is adapted to be detachably connected to the first positioning structure, and the second end of the positioning and adjusting member is adapted to be detachably connected to the second positioning structure; the positioning and adjusting member is arranged between the opposite wall surfaces of the secondary hoist and the counterweight, and the length of the positioning and adjusting member is adjustable, and a plurality of the first positioning structures and the second positioning structures are provided in one-to-one correspondence.

[0007] A kind of auxiliary hoist self-loading and unloading crane provided by the present invention, the first positioning structure includes a positioning hole; a plurality of the second positioning structures are arranged in sequence along a first direction parallel to the rotation axis of the auxiliary hoist, and each of the second positioning structures includes a fixed shaft and a positioning sleeve; the fixed shaft is fixedly arranged at the bottom of the auxiliary hoist, and the fixed shaft extends along the first direction; the positioning sleeve is rotatably arranged on the fixed shaft; a first end of the positioning adjusting member is adapted to be inserted into the positioning hole, and a second end of the positioning adjusting member is adapted to be inserted into the positioning sleeve.

[0008] A kind of auxiliary hoist self-loading and unloading crane provided by the present invention, the first connecting portion is arranged at one end of the turntable and away from the center of rotation of the turntable; the first connecting portion includes a first hinge ear and a second hinge ear, and the first hinge ear is arranged above the second hinge ear along the height direction of the turntable; the second connecting portion is arranged at one end of the auxiliary hoist, and the second connecting portion includes a third hinge ear and a fourth hinge ear, and the third hinge ear is arranged above the fourth hinge ear along the height direction of the auxiliary hoist; the second hinge ear is adapted to be hinged to the fourth hinge ear; in the case where the auxiliary hoist is in a first position and the counterweight is at a first height, the first hinge ear and the third hinge ear are in a matching state.

[0009] A kind of auxiliary hoist self-loading and unloading crane provided by the present invention, the positioning adjusting member includes a first adjusting member, a second adjusting member and a gasket; one end of the first adjusting member is provided with a threaded hole, one end of the second adjusting member is provided with a screw rod, and the threaded hole is threadedly connected with the screw rod; the gasket is sleeved on the screw rod, and one or more gaskets can be selectively arranged.

[0010] A kind of auxiliary hoist self-loading and unloading crane provided by the present invention, a storage portion is arranged on the auxiliary hoist, and the storage portion is used for storing the positioning adjusting member.

[0011] A kind of auxiliary hoist self-loading and unloading crane provided by the present invention, the storage portion includes a jack plate, and jacks are arranged on the jack plate; a first end of the positioning adjusting member is used for being inserted into the jack, and a locking member is detachably installed at the first end of the positioning adjusting member.

[0012] The present invention also provides an auxiliary hoist self-loading and unloading method for the auxiliary hoist self-loading and unloading crane as described above, including: hoisting the auxiliary hoist to a first position on the counterweight, and adjusting the position and posture of the auxiliary hoist on the counterweight through the positioning adjusting member; adjusting the counterweight to a second height, and controlling the turntable to rotate to a matching position where the first connecting portion is adapted to be connected to the second connecting portion; adjusting the counterweight to the first height so that the first connecting portion and the second connecting portion are in a matching state, and connecting the first connecting portion and the second connecting portion.

[0013] A method for self-loading and unloading of the auxiliary hoist according to the present invention, the step of adjusting the counterweight to the first height so that the first connecting portion and the second connecting portion are in a matching state includes: during the process of the counterweight rising to the first height, hinging the second hinge ear on the turntable with the fourth hinge ear on the auxiliary hoist; using the driving force of the rising counterweight to control the auxiliary hoist to deflect towards one side of the turntable until the counterweight rises to the first height and the first hinge ear on the turntable is in a matching state with the third hinge ear on the auxiliary hoist.

[0014] A method for self-loading and unloading of the auxiliary hoist according to the present invention, after connecting the first connecting portion and the second connecting portion, further includes: adjusting the counterweight to the second height so that the positioning and adjusting member is separated from between the auxiliary hoist and the counterweight, and storing the positioning and adjusting member in the storage portion on the auxiliary hoist; adjusting the counterweight to the first height.

[0015] A self-loading and unloading crane for the auxiliary hoist and a method for self-loading and unloading of the auxiliary hoist according to the present invention, by providing a turntable, an auxiliary hoist, a lifting device, a counterweight and a positioning and adjusting member, when installing the auxiliary hoist, the lifting function of the crane can be utilized to hoist the auxiliary hoist to the first position on the counterweight, and the position and attitude of the auxiliary hoist on the counterweight can be adjusted by the positioning and adjusting member; then, based on the adjustment of the slewing position of the turntable and the lifting position of the counterweight, the first connecting portion and the second connecting portion can be controlled to reach a matching state so as to connect the first connecting portion and the second connecting portion to realize the installation of the auxiliary hoist. Correspondingly, when disassembling the auxiliary hoist, only need to disconnect the connection between the turntable and the auxiliary hoist and hoist the auxiliary hoist to the second position away from the counterweight.

[0016] It can be seen that in the process of loading and unloading the auxiliary hoist of the present invention, there is no need to rely on external auxiliary hoisting equipment, and only the self-structure of the crane can be used to complete the loading and unloading of the auxiliary hoist, which is not only simple and convenient to operate, has low operation cost, but also can improve the installation efficiency of the auxiliary hoist and reduce the safety hazards during loading and unloading. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0018] Figure 1 is a schematic structural diagram of the self-loading and unloading crane for the auxiliary hoist provided by the present invention;

[0019] Figure 2 is provided by the present invention Figure 1 partial enlarged structural diagram;

[0020] Figure 3 One of the structural schematic diagrams of the auxiliary hoist provided by the present invention;

[0021] Figure 4 Another structural schematic diagram of the auxiliary hoist provided by the present invention;

[0022] Figure 5 One of the structural schematic diagrams of the positioning and adjusting member provided by the present invention;

[0023] Figure 6 Another structural schematic diagram of the positioning and adjusting member provided by the present invention;

[0024] Figure 7 Structural schematic diagram of the counterweight provided by the present invention;

[0025] Figure 8 Structural schematic diagram of the cooperation between the positioning and adjusting member provided by the present invention and the first positioning structure on the counterweight;

[0026] Figure 9 Flow schematic diagram of the auxiliary hoist self-loading and unloading method based on the auxiliary hoist self-loading and unloading crane provided by the present invention;

[0027] Figure 10 One of the structural schematic diagrams of the installation of the auxiliary hoist provided by the present invention;

[0028] Figure 11 Structural schematic diagram of placing the auxiliary hoist on the counterweight provided by the present invention;

[0029] Figure 12 Provided by the present invention Figure 11 Cross-sectional structural schematic diagram;

[0030] Figure 13 Another structural schematic diagram of the installation of the auxiliary hoist provided by the present invention;

[0031] Figure 14 Provided by the present invention Figure 13 Partial enlarged structural schematic diagram;

[0032] Figure 15 Another structural schematic diagram of the installation of the auxiliary hoist provided by the present invention;

[0033] Reference numerals:

[0034] 100: Turntable; 200: Auxiliary hoist; 300: Lifting device;

[0035] 400: Counterweight; 500: Positioning and adjusting member; 600: Moving platform;

[0036] 700: Luffing mechanism; 800: Boom; 11: First connecting part;

[0037] 111: First hinged ear; 112: Second hinged ear; 21: Second connecting part;

[0038] 22: Second positioning structure; 23: Storage part; 211: Third hinged ear;

[0039] 212: Fourth hinged ear; 221: Fixed shaft; 222: Positioning sleeve;

[0040] 41: First positioning structure; 51: First adjusting part; 52: Second adjusting part;

[0041] 53: Gasket; 54: Locking part. Detailed implementation manners

[0042] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] The following combines Figures 1 - 15 to describe a secondary hoist self-loading and unloading crane and a secondary hoist self-loading and unloading method of the present invention.

[0044] As Figures 1 to 2 shown, this embodiment provides a secondary hoist self-loading and unloading crane, including: a turntable 100, a secondary hoist 200, a lifting device 300, a counterweight 400 and a positioning and adjusting member 500; the lifting device 300 is adapted to be connected to the counterweight 400 to drive the counterweight 400 to lift between a first height and a second height, and the first height is greater than the second height; the turntable 100 is provided with a first connecting part 11, and the secondary hoist 200 is provided with a second connecting part 21, and the first connecting part 11 is used for detachably connecting with the second connecting part 21; during the installation or disassembly of the secondary hoist 200, the secondary hoist 200 is used to switch between a first position on the counterweight 400 and a second position away from the counterweight 400 under the hoisting of the crane; the positioning and adjusting member 500 is adapted to be arranged between the counterweight 400 and the secondary hoist 200 to determine the position and attitude of the secondary hoist 200 on the counterweight 400, so that when the secondary hoist 200 is in the first position and the counterweight 400 is at the first height, the first connecting part 11 and the second connecting part 21 are in a matching state.

[0045] Specifically, in this embodiment, by providing a turntable 100, a secondary hoist 200, a lifting device 300, a counterweight 400, and a positioning and adjusting member 500, when installing the secondary hoist 200, the lifting function of a crane can be utilized to hoist the secondary hoist 200 to a first position on the counterweight 400, and the position and attitude of the secondary hoist 200 on the counterweight 400 can be adjusted through the positioning and adjusting member 500; then, based on the adjustment of the slewing position of the turntable 100 and the lifting position of the counterweight 400, the first connecting portion 11 and the second connecting portion 21 can be controlled to reach a mating state, so as to connect the first connecting portion 11 and the second connecting portion 21 to realize the installation of the secondary hoist 200. Correspondingly, when disassembling the secondary hoist 200, it is only necessary to disconnect the turntable 100 from the secondary hoist 200 and hoist the secondary hoist 200 to a second position away from the counterweight 400.

[0046] It can be seen that in the process of loading and unloading the secondary hoist 200 of the present invention, there is no need to rely on external auxiliary lifting equipment, and the loading and unloading of the secondary hoist 200 can be completed only by using the self-structure of the crane. It is not only simple and convenient to operate, has a low operation cost, but also can improve the installation efficiency of the secondary hoist 200 and reduce the safety hazards during loading and unloading.

[0047] Since the position of the first connecting portion 11 on the turntable 100 remains fixed when the slewing position of the turntable 100 is determined, the attitude adjustment of the secondary hoist 200 on the counterweight 400 shown in this embodiment by the positioning and adjusting member 500 mainly adjusts the mating attitude of the second connecting portion 21 on the secondary hoist 200 relative to the first connecting portion 11 on the turntable 100.

[0048] In one embodiment, as Figure 3 and Figure 12 shown, the positioning and adjusting member 500 shown in this embodiment is adapted to be provided between the top of the counterweight 400 and the bottom of the secondary hoist 200 to determine the position and attitude of the secondary hoist 200 on the counterweight 400.

[0049] On the one hand, after the counterweight 400 is hoisted to the counterweight 400 by a crane, the positioning and adjusting member 500 is used to position the secondary hoist 200 at a first position on the counterweight 400.

[0050] On the other hand, after the positioning and adjusting member 500 positions the position of the secondary hoist 200 on the counterweight 400, by adjusting the length of the positioning and adjusting member 500, the two ends of the secondary hoist 200 along its rotation axis can be adaptively adjusted ( Figure 3The height at which the left and right sides (in the left and right sides of []) are placed on the counterweight 400; and, by adjusting the inclination angle of the positioning adjustment member 500 relative to the horizontal plane where the top of the counterweight 400 is located, the auxiliary hoist 200 can rotate along a first direction parallel to the rotation axis of the auxiliary hoist 200 with the positioning adjustment member 500 as a fulcrum, so as to realize the attitude adjustment of the auxiliary hoist 200, and the first connecting portion 11 and the second connecting portion 21 can be brought into a matching state.

[0051] As Figures 1 to 2 shown, the crane shown in this embodiment includes a mobile platform 600, a turntable 100, a luffing mechanism 700, a boom 800 and a main hoist. Among them, the main hoist is Figure 1 and Figure 2 not shown in []. One end of the turntable 100 is rotatably installed on the mobile platform 600, the main hoist is arranged on the turntable 100, one end of the luffing mechanism 700 and one end of the boom 800 are respectively rotatably connected to the turntable 100, the other end of the luffing mechanism 700 is rotatably connected to the middle of the boom 800, and the hoisting rope of the main hoist bypasses the other end of the boom 800 and is connected to the spreader.

[0052] Among them, the lifting device 300 shown in this embodiment is usually arranged at one end of the turntable 100 away from its rotation center. The lifting device 300 can be a lifting oil cylinder well-known in the art, and the lifting oil cylinder is vertically distributed. The counterweight 400 shown in this embodiment can be temporarily stored on the mobile platform 600. When it is necessary to set the counterweight 400 when the boom 800 is lifted or goods are lifted, this embodiment can control the rotation position of the turntable 100 so that the lifting device 300 is located above the counterweight 400, so as to facilitate connecting the lifting end of the lifting device 300 to the counterweight 400. When the lifting device 300 drives the counterweight 400 to rise to the first height, the counterweight 400 is separated from the mobile platform 600, and the connection between the counterweight 400 and the end of the turntable 100 is realized.

[0053] It should be noted here that this embodiment can either control the lifting of the spreader through the main hoist to realize the hoisting of the lifted object, or control the auxiliary hoist 200 to switch between a first position on the counterweight 400 and a second position away from the counterweight 400.

[0054] In some embodiments, when adjusting the position and attitude of the auxiliary hoist 200 on the counterweight 400, the positioning adjustment member 500 shown in this embodiment can be a multi-axis motion mechanism well-known in the art. For example, the multi-axis motion mechanism is a three-axis displacement table or a three-axis robotic arm well-known in the art.

[0055] Meanwhile, the positioning and adjusting member 500 shown in this embodiment can also be an adjusting element disposed between the auxiliary hoist 200 and the counterweight 400. This adjusting element is used to define the installation position of the auxiliary hoist 200 on the counterweight 400 and to adjust the installation gap between the auxiliary hoist 200 and the counterweight 400, so as to realize the attitude adjustment of the auxiliary hoist 200. In practical applications, the adjusting element can be set as a support leg capable of realizing height adjustment or a support structure composed of multiple gaskets. Here, in this embodiment, multiple adjusting elements can be set according to actual needs to meet the adjustment requirements for the attitude of the auxiliary hoist 200. This embodiment can also set the arrangement position of the adjusting element according to the surface structure of the counterweight 400, so as to position the position of the auxiliary hoist 200 on the counterweight 400.

[0056] In some embodiments, in this embodiment, a first positioning structure 41 is provided at the top of the counterweight 400, and a second positioning structure 22 is provided at the bottom of the auxiliary hoist 200. The first end of the positioning and adjusting member 500 is adapted to be detachably connected to the first positioning structure 41, and the second end of the positioning and adjusting member 500 is adapted to be detachably connected to the second positioning structure 22; the positioning and adjusting member 500 is disposed between the opposite wall surfaces of the auxiliary hoist 200 and the counterweight 400, and the length of the positioning and adjusting member 500 is adjustable. A plurality of first positioning structures 41 and second positioning structures 22 are provided in one-to-one correspondence.

[0057] Specifically, the first positioning structure 41 shown in this embodiment can be a groove, a threaded hole or a positioning protrusion provided at the top of the counterweight 400, etc. Correspondingly, the second positioning structure 22 can also be a groove, a threaded hole or a positioning protrusion provided at the bottom of the auxiliary hoist 200, etc., and no specific limitation is made here.

[0058] Among them, in this embodiment, the structural forms of the first positioning structure 41 and the second positioning structure 22 can be adaptively set according to the specific structures at both ends of the positioning and adjusting member 500.

[0059] Meanwhile, since the positioning and adjusting member 500 is disposed between the opposite wall surfaces of the auxiliary hoist 200 and the counterweight 400, in the case where a plurality of first positioning structures 41 and second positioning structures 22 are provided in one-to-one correspondence, a plurality of positioning and adjusting members 500 are also provided. The plurality of positioning and adjusting members 500 can support the auxiliary hoist 200 on the top of the counterweight 400. While the positioning and adjusting member 500 positions the position of the auxiliary hoist 200, based on the adjustable length characteristic of the positioning and adjusting member 500, by adjusting the length of the positioning and adjusting member 500, the attitude adjustment of the auxiliary hoist 200 on the counterweight 400 can be realized.

[0060] In a preferred embodiment, as Figures 3 to 8As shown, the first positioning structure 41 shown in this embodiment includes positioning holes; a plurality of second positioning structures 22 are arranged in sequence along a first direction parallel to the rotation axis of the auxiliary hoist 200, and each second positioning structure 22 includes a fixed shaft 221 and a positioning sleeve 222; the fixed shaft 221 is fixedly arranged at the bottom of the auxiliary hoist 200 and extends along the first direction; the positioning sleeve 222 is rotatably arranged on the fixed shaft 221; the first end of the positioning and adjusting member 500 is adapted to be inserted into the positioning hole, and the first end of the positioning and adjusting member 500 is adapted to be inserted into the positioning sleeve 222.

[0061] Specifically, in this embodiment, the second positioning structure 22 can be arranged on one side close to the second connection portion 21 on the auxiliary hoist 200, and multiple rows of the second positioning structure 22 are arranged. When actually installing the auxiliary hoist 200, when placing the auxiliary hoist 200 on the top of the counterweight 400 and installing the positioning and adjusting member 500 between the counterweight 400 and the auxiliary hoist 200, based on the lifting of the counterweight 400, preliminary adjustment of the vertical installation height of the auxiliary hoist 200 can be realized. Based on the installation form of multiple positioning and adjusting members 500 between the counterweight 400 and the auxiliary hoist 200, fine adjustment of the vertical installation height of each position of the auxiliary hoist 200 can be realized, and the horizontal installation position of the auxiliary hoist 200 can also be adjusted, so as to control the first connection portion 11 and the second connection portion 21 to reach a matching state.

[0062] As Figure 10 And Figure 11 As shown, in the case where the second positioning structure 22 is arranged in a row, when actually installing the auxiliary hoist 200, in this embodiment, the first connection portion 11 and the second connection portion 21 can be movably connected first. For example, the first connection portion 11 and the second connection portion 21 are connected by a rope, and then a part of the structure of the auxiliary hoist 200 close to the turntable 100 is supported on the positioning and adjusting member 500, and a part of the structure of the auxiliary hoist 200 far from the turntable 100 is supported on the counterweight 400. Thus, during the rising process of the counterweight 400, based on the connection constraint between the first connection portion 11 and the second connection portion 21, the auxiliary hoist 200 can be deflected gradually toward the side of the turntable 100 during the rising process until the first connection portion 11 and the second connection portion 21 reach a matching state.

[0063] In some embodiments, the fixed shaft 221 can be detachably installed at the bottom of the auxiliary hoist 200. To realize the installation of the fixed shaft 221, in this embodiment, the auxiliary hoist 200 is provided with an outer plate and an inner plate, through holes are formed in the outer plate and the inner plate and are coaxially distributed, and a receiving space is formed between the outer plate and the inner plate.

[0064] Here, the first end of the fixed shaft 221 passes through the through hole on the outer side plate and extends into the through hole on the inner side plate. The positioning sleeve 222 is located in the accommodation space and is rotatably arranged on the fixed shaft 221. The second end of the fixed shaft 221 is located on the side of the outer side plate away from the inner side plate. The second end of the fixed shaft 221 is connected to the clamping plate, and the clamping plate is detachably connected to the outer side plate through a locking mechanism to ensure that the fixed shaft 221 remains fixed at the bottom of the auxiliary hoist 200 and does not rotate in the through hole.

[0065] In a specific embodiment, during the ascending process of the auxiliary hoist 200, in order to facilitate controlling the automatic deflection of the auxiliary hoist 200 towards one side of the turntable 100 so that the first connecting portion 11 and the second connecting portion 21 reach a better matching state, in this embodiment, the first connecting portion 11 is arranged at one end of the turntable 100 and away from the rotation center of the turntable 100. The first connecting portion 11 includes a first hinge ear 111 and a second hinge ear 112, and the first hinge ear 111 is arranged above the second hinge ear 112 along the height direction of the turntable 100.

[0066] Correspondingly, in this embodiment, the second connecting portion 21 is arranged at one end of the auxiliary hoist 200. The second connecting portion 21 includes a third hinge ear 211 and a fourth hinge ear 212, and the third hinge ear 211 is arranged above the fourth hinge ear 212 along the height direction of the auxiliary hoist 200. The second hinge ear 112 is suitable for being hinged to the fourth hinge ear 212. When the auxiliary hoist 200 is in the first position and the counterweight 400 is at the first height, the first hinge ear 111 and the third hinge ear 211 are in a matching state.

[0067] Wherein, at least two of the first hinge ear 111 and the second hinge ear 112 can be arranged along the width direction of the turntable 100; at least two of the third hinge ear 211 and the fourth hinge ear 212 can be arranged along the first direction shown in the above embodiment.

[0068] Such as Figure 11 And Figure 13 As shown, during the ascending process of the auxiliary hoist 200 along with the counterweight 400, in this embodiment, the second hinge ear 112 on the turntable 100 can be first hinged to the fourth hinge ear 212 on the auxiliary hoist 200. Based on the hinge action between the second hinge ear 112 and the fourth hinge ear 212, under the ascending driving action of the counterweight 400 on the auxiliary hoist 200, the auxiliary hoist 200 will automatically deflect towards one side of the turntable 100 until when the counterweight 400 ascends to the first height, the first hinge ear 111 on the turntable 100 and the third hinge ear 211 on the auxiliary hoist 200 are in a matching state. At this time, the first hinge ear 111 and the third hinge ear 211 can be connected through a pin shaft.

[0069] It should be noted here that, for the convenience of realizing the hinge between the second hinge ear 112 and the fourth hinge ear 212, in this embodiment, the hinge hole of the second hinge ear 112 is designed as an arc-shaped notch, and the opening direction of the notch is downward, and a pin shaft is pre-installed in the fourth hinge ear 212. In this way, during the process of the auxiliary hoist 200 rising along with the counterweight 400, the pin shaft in the fourth hinge ear 212 will rise along with the counterweight 400 and automatically cooperate with the notch to realize the hinge between the second hinge ear 112 and the fourth hinge ear 212.

[0070] Based on the solution shown in the above embodiment, as Figure 5 and Figure 6 shown, the positioning and adjusting member 500 shown in this embodiment includes a first adjusting member 51, a second adjusting member 52 and a gasket 53; one end of the first adjusting member 51 is provided with a threaded hole, one end of the second adjusting member 52 is provided with a screw rod, and the threaded hole is threadedly connected with the screw rod; the gasket 53 is sleeved on the screw rod, and one or more gaskets 53 can be selectively provided.

[0071] In this way, in this embodiment, by adjusting the threaded connection state between the threaded hole and the screw rod, the gasket 53 can be clamped between the opposite ends of the first adjusting member 51 and the second adjusting member 52. Therefore, in this embodiment, by adjusting the number of gaskets or replacing gaskets with different thicknesses, the length of the positioning and adjusting member 500 can be conveniently adjusted.

[0072] As Figure 3 shown, in order to facilitate the storage of the positioning and adjusting member 500 and prevent the positioning and adjusting member 500 from being lost during use, a storage part 23 is provided on the auxiliary hoist 200 in this embodiment, and the storage part 23 is used to store the positioning and adjusting member 500.

[0073] Specifically, the storage part 23 shown in this embodiment includes a jack plate, and jacks are provided on the jack plate; the other end of the first adjusting member 51 is used to be inserted into the jack, and a locking member 54 is detachably installed at the other end of the first adjusting member 51.

[0074] Among them, the locking member 54 shown in this embodiment includes a locking pin. Here, in this embodiment, a locking hole can be constructed at the other end of the first adjusting member 51. After inserting the other end of the first adjusting member 51 into the jack, the locking pin is inserted into the locking hole to lock the positioning and adjusting member 500 to the storage part 23.

[0075] As Figure 9 shown, this embodiment also provides an auxiliary hoist self-loading and unloading method for the auxiliary hoist self-loading and unloading crane as described above, including the following steps:

[0076] Step 910, hoist the auxiliary hoist to the first position on the counterweight, and adjust the position and attitude of the auxiliary hoist on the counterweight through the positioning and adjusting member;

[0077] Step 920: Adjust the counterweight to the second height and control the turntable to rotate to the mating position where the first connecting part is suitable for connecting with the second connecting part;

[0078] Step 930: Adjust the counterweight to the first height so that the first connecting part and the second connecting part are in a mating state, and connect the first connecting part and the second connecting part.

[0079] Here, based on Figures 10 to 15 the installation state of the auxiliary hoist shown, the method shown in this embodiment is specifically described as follows.

[0080] As Figures 10 to 12 shown, when installing the auxiliary hoist 200, first control the turntable 100 to rotate to a suitable position, and use the lifting function of the crane itself to hoist the counterweight 400 onto the moving platform 600 of the crane to ensure that the counterweight 400 is at the second height. Here, in this embodiment, the counterweight 400 can be hoisted onto the frame of the crane, and then one end of the positioning and adjusting member 500 is inserted into the positioning hole at the top of the counterweight 400.

[0081] Next, use the lifting function of the crane itself to lift the auxiliary hoist 200 and place it on the top of the counterweight 400, so that the other end of the positioning and adjusting member 500 is inserted into the positioning sleeve 222 at the bottom of the auxiliary hoist 200 to provide positioning and support for one end of the counterweight 400. At this time, the auxiliary hoist 200 is placed obliquely on the top of the counterweight 400, and the inclination angle can be set to a suitable angle through actual design to avoid interference between the first connecting part 11 on the turntable 100 and the second connecting part 21 on the auxiliary hoist 200, but it is necessary to ensure that the center of gravity of the auxiliary hoist 200 is stable after placement and there will be no tipping.

[0082] As Figure 10 shown, in the case where it is determined that the counterweight 400 is on the moving platform 600, control the turntable to rotate to the mating position where the first connecting part is suitable for connecting with the second connecting part; then, drive the counterweight 400 to rise through the lifting device 300 provided on the turntable 100, Figure 10 and the specific upward direction of the counterweight 400 is indicated by an arrow in

[0083] As Figures 13 to 14As shown, after the second articulated ear 112 is articulated with the fourth articulated ear 212, continue to lift the counterweight 400, so as to utilize the driving force of the rising counterweight 400 to force the auxiliary hoist 200 to deflect towards one side of the turntable 100 with the articulated position between the second articulated ear 112 and the fourth articulated ear 212 as the support point, until when the counterweight 400 rises to the first height, the first articulated ear 111 on the turntable 100 and the third articulated ear 211 on the auxiliary hoist 200 are in a mating state. Among them, in Figure 14 the rising direction of the counterweight 400 and the deflection direction of the auxiliary hoist 200 are specifically indicated by arrows.

[0084] As Figure 15 shown, when the first articulated ear 111 and the third articulated ear 211 are in a mating state, connect the first articulated ear 111 and the third articulated ear 211 through a pin shaft to realize the connection between the turntable 100 and the auxiliary hoist 200.

[0085] Among them, in the case where multiple first articulated ears 111 and third articulated ears 211 are provided, due to the existence of various cumulative errors, it may occur that the first articulated ear 111 on one side mates with the third articulated ear 211, while the pin holes on the first articulated ear 111 and the third articulated ear 211 on the other side do not correspond, resulting in a situation where it is difficult to connect the first articulated ear 111 and the third articulated ear 211 through a pin shaft. At this time, the length of the adjustable positioning adjustment member 500 can be adjusted to offset the cumulative error and realize the adjustment of the mating state of the first articulated ear 111 and the third articulated ear 211, so as to smoothly complete the locking of the pin between the two. After the vehicle is adjusted at the factory, it can be directly used subsequently.

[0086] Furthermore, after connecting the first connecting portion 11 and the second connecting portion 21, this embodiment can also adjust the counterweight 400 to the second height, so as to separate the positioning adjustment member 500 from between the auxiliary hoist 200 and the counterweight 400 and store the positioning adjustment member 500 in the storage portion 23 on the auxiliary hoist 200; then, adjust the counterweight 400 to the first height to finally complete the self-installation of the auxiliary hoist 200.

[0087] It should be noted here that this embodiment can refer to the self-installation process of the auxiliary hoist to disassemble the auxiliary hoist. Here, the disassembly operation of the hoist will not be elaborated one by one.

[0088] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some 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 the embodiments of the present invention.

Claims

1. A secondary hoist self-loading and unloading crane, characterized in that, Comprising: A turntable, an auxiliary hoist, a lifting device, a counterweight, and a positioning and adjusting member; The lifting device is adapted to be connected to the counterweight to drive the counterweight to lift between a first height and a second height, the first height being greater than the second height; The turntable is provided with a first connecting portion, and the auxiliary hoist is provided with a second connecting portion, and the first connecting portion is used for detachably connecting with the second connecting portion; During the installation or disassembly of the auxiliary hoist, the auxiliary hoist is used to switch between a first position on the counterweight and a second position away from the counterweight under the lifting of the crane; The positioning and adjusting member is adapted to be arranged between the counterweight and the auxiliary hoist to determine the position and attitude of the auxiliary hoist on the counterweight, so that when the auxiliary hoist is in the first position and the counterweight is in the first height, the first connecting portion and the second connecting portion are in a mating state; The top of the counterweight is provided with a first positioning structure, the bottom of the auxiliary hoist is provided with a second positioning structure, the first end of the positioning and adjusting member is adapted to be detachably connected to the first positioning structure, and the second end of the positioning and adjusting member is adapted to be detachably connected to the second positioning structure; the positioning and adjusting member is arranged between the opposite wall surfaces of the auxiliary hoist and the counterweight, the length of the positioning and adjusting member is adjustable, and a plurality of the first positioning structures and the second positioning structures are provided in one-to-one correspondence; The first positioning structure includes a positioning hole; a plurality of the second positioning structures are arranged in sequence along a first direction parallel to the rotation axis of the auxiliary hoist, and each second positioning structure includes a fixed shaft and a positioning sleeve; the fixed shaft is fixedly arranged at the bottom of the auxiliary hoist and extends along the first direction; the positioning sleeve is rotatably arranged on the fixed shaft; the first end of the positioning and adjusting member is adapted to be inserted into the positioning hole, and the second end of the positioning and adjusting member is adapted to be inserted into the positioning sleeve.

2. The auxiliary hoist self-loading and unloading crane according to claim 1, wherein The first connecting portion is arranged at one end of the turntable and away from the rotation center of the turntable; the first connecting portion includes a first hinge ear and a second hinge ear, and the first hinge ear is arranged above the second hinge ear along the height direction of the turntable; The second connecting portion is arranged at one end of the auxiliary hoist, and the second connecting portion includes a third hinge ear and a fourth hinge ear, and the third hinge ear is arranged above the fourth hinge ear along the height direction of the auxiliary hoist; The second hinge ear is adapted to be hinged to the fourth hinge ear; when the auxiliary hoist is in the first position and the counterweight is in the first height, the first hinge ear and the third hinge ear are in a mating state.

3. The auxiliary winch self-loading and unloading crane according to any one of claims 1 to 2, characterized in that, The positioning and adjusting member includes a first adjusting member, a second adjusting member, and a gasket; One end of the first adjusting member is provided with a screw hole, one end of the second adjusting member is provided with a screw rod, and the screw hole is threadedly connected to the screw rod; the gasket is sleeved on the screw rod, and one or more gaskets can be selectively provided.

4. The auxiliary hoist self-loading and unloading crane according to any one of claims 1 to 2, characterized in that, A storage portion is provided on the auxiliary hoist, and the storage portion is used for storing the positioning and adjusting member.

5. The auxiliary hoist self-loading and unloading crane according to claim 4, wherein the storage part includes a socket plate, and the socket plate is provided with sockets; the first end of the positioning and adjusting member is used to be inserted into the socket, and a locking member is detachably installed at the first end of the positioning and adjusting member.

6. A secondary hoist self-loading and unloading method for a secondary hoist self-loading and unloading crane as described in any one of claims 1 to 5, characterized in that, It includes: Hoist the auxiliary hoist to the first position on the counterweight, and adjust the position and attitude of the auxiliary hoist on the counterweight through the positioning and adjusting member; Adjust the counterweight to the second height, and control the slewing platform to rotate to the mating position where the first connecting part is suitable for being connected to the second connecting part; Adjust the counterweight to the first height so that the first connecting part and the second connecting part are in a mating state, and connect the first connecting part and the second connecting part.

7. The auxiliary hoist self-loading and unloading method according to claim 6, wherein the step of adjusting the counterweight to the first height so that the first connecting part and the second connecting part are in a mating state includes: During the process of the counterweight rising to the first height, hinge the second hinge ear on the slewing platform with the fourth hinge ear on the auxiliary hoist; Utilize the driving force of the rising counterweight to control the auxiliary hoist to deflect towards one side of the slewing platform until the counterweight rises to the first height, and the first hinge ear on the slewing platform and the third hinge ear on the auxiliary hoist are in a mating state.

8. The auxiliary hoist self-loading and unloading method according to claim 6, wherein after connecting the first connecting part and the second connecting part, it further includes: Adjust the counterweight to the second height so that the positioning and adjusting member is separated from between the auxiliary hoist and the counterweight, and store the positioning and adjusting member in the storage part on the auxiliary hoist; Adjust the counterweight to the first height.

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