CN112661032A

CN112661032A - Small crane ship with overload shaking protection function during hoisting

Info

Publication number: CN112661032A
Application number: CN202110057794.5A
Authority: CN
Inventors: 张子华
Original assignee: Chengdu Xindu Menbankai Trading Co ltd
Current assignee: Chengdu Xindu Menbankai Trading Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-04-16

Abstract

The invention discloses a small crane ship for protecting overload shaking during hoisting, which comprises a shell, wherein the left end and the right end above the shell are respectively provided with an open pedal cavity, an inclination protection mechanism for preventing a ship body from inclining is arranged in the pedal cavity, a lifting rotating cavity with an upward opening is arranged in the rear direction of the shell, a lifting mechanism for lifting goods onto the ship is arranged in the lifting rotating cavity, a pedal shaft which is in sliding connection with the cavity wall of the pedal cavity is arranged in the pedal cavity, the inclination protection mechanism in the device can support the inclined ship body, when heavy objects are excessively heavy, the ship is enabled to swing and incline, the inclination amplitude of the heavy objects is reduced when the heavy objects are transferred onto the ship, meanwhile, the pedal extends out to be connected with a wharf, when the ship body is excessively inclined and cannot stand, people on the ship can easily escape, the goods can be safely lifted onto the ship through a lifting mechanism, and the normal work of, thereby guaranteeing the danger of personnel on the ship in the hoisting process, further preventing the ship from turning over and guaranteeing the safety of surrounding people.

Description

Small crane ship with overload shaking protection function during hoisting

Technical Field

The invention relates to the field of cranes, in particular to a small crane ship for protecting overload shaking during hoisting.

Background

In the present, various machines and constructions are equipped with and provided with a hoisting device, which also becomes an important apparatus for carrying, and a crane refers to a multi-action hoisting machine, also called a crown block, a gantry crane, a crane, which vertically lifts and horizontally carries heavy objects within a certain range.

Hoisting equipment arranged on a crane ship is very common, but the general small crane ship is easy to cause the risk of inclination and even toppling of the ship body when the frame rotates due to the fact that the lifted heavy object is too heavy, and is very dangerous to people on the ship and around the ship.

Disclosure of Invention

The invention aims to solve the technical problem of providing a small crane ship for protecting overload shaking during hoisting, and overcomes the problems.

The invention is realized by the following technical scheme.

The invention relates to a small crane ship capable of protecting overload shaking during hoisting, which comprises a casing, wherein the left end and the right end above the casing are respectively provided with an open pedal cavity, an inclination protection mechanism for preventing a ship body from inclining is arranged in the pedal cavity, a lifting rotating cavity with an upward opening is arranged in the rear direction of the casing, a lifting mechanism for lifting goods onto the ship is arranged in the lifting rotating cavity, a pedal shaft which is in sliding connection with the cavity wall of the pedal cavity is arranged in the pedal cavity, the right end of the pedal shaft is rotationally connected with a pedal, a pedal spring is fixedly connected to the left end surface of the pedal shaft, the other end of the pedal spring is fixed on the left cavity wall of the pedal cavity, the left end of the right side of the pedal shaft is also fixedly connected with a right pedal pull rope, the right end surface of the left side of the pedal shaft is also fixedly connected with a left pedal pull, a pedal stop block with the upper end extending out of the cavity is arranged in the pedal stop cavity, a pedal stop spring is fixedly connected to the lower end face of the pedal stop block, the other end of the pedal stop spring is fixed to the lower cavity wall of the pedal stop cavity, a right pedal stop pull rope is also fixedly connected to the lower end face of the pedal stop block on the right side, a left pedal stop pull rope is also fixedly connected to the lower end face of the pedal stop block on the left side, a protection control cavity is arranged in the middle of the casing, a protection ball in sliding connection with the cavity wall of the protection control cavity is arranged in the protection control cavity, slider grooves communicated with the protection control cavity and the protection control cavity are arranged in the left cavity wall and the right cavity wall of the protection control cavity, a protection ball slider in sliding connection with the slider grooves is arranged in the protection ball slider, protection ball springs are fixedly connected to the left end and the right, a protection ball locking cavity communicated with the protection control cavity is arranged in the lower cavity wall in the middle of the protection control cavity, a protection ball locking block with the upper end extending into the protection control cavity is arranged in the protection ball locking cavity, a protection ball locking spring is fixedly connected to the lower end surface of the protection ball locking block, the other end of the protection ball locking spring is fixed to the lower cavity wall of the protection ball locking cavity, a protection ball locking pull rope is also fixedly connected to the lower end surface of the protection ball locking block, supporting and starting cavities communicated with the protection ball locking pull rope are respectively arranged in the lower cavity walls on the left side and the right side of the protection control cavity, a supporting and starting block with the upper end extending into the protection control cavity is arranged in the supporting and starting cavity, supporting and starting springs are respectively and fixedly connected to the lower end surfaces of the supporting and starting cavities, the other end of the supporting and starting spring is fixed to the lower cavity wall of the supporting and starting cavity, and a, the left side support the terminal surface still fixedly connected with footboard glide gear stay cord down of the kickoff block, the left side support the terminal surface still fixedly connected with on the kickoff block right side footboard locking stay cord, the right side support the terminal surface still fixedly connected with left branch and prop the glide gear stay cord down of the kickoff block.

The lower end surface of the right supporting starting block is also fixedly connected with an upper pedal sliding gear pull rope, the upper end surface of the right supporting starting block is also fixedly connected with a left pedal stop pull rope, the left side and the right side below the casing are both provided with an open supporting plate cavity, the upper cavity wall of the supporting plate cavity is rotatably connected with a supporting pin shaft, the lower end of the supporting pin shaft is fixedly connected with a supporting plate, a supporting torsion spring is fixedly connected in the supporting pin shaft, the other end of the supporting torsion spring is fixed on the cavity wall of the supporting plate cavity, the rear part of the middle part of the casing is provided with a protective driving cavity, a front cavity wall of the protective driving cavity is fixedly provided with a protective driving motor, the rear part of the protective driving motor is dynamically connected with a protective main shaft, the front end of the protective main shaft is fixedly provided with a protective driving gear, the front end of the supporting driven shaft is connected with a supporting sliding gear block meshed with the protection driving gear through a spline, a supporting sliding gear groove with a backward opening is arranged in the rear end face of the supporting sliding gear block, a supporting sliding gear block is arranged in the supporting sliding gear groove, a supporting sliding gear spring is fixedly connected to the rear end face of the supporting sliding gear block, the other end of the supporting sliding gear spring is fixed on the rear cavity wall of the protection driving cavity, the supporting sliding gear block on the left side is fixedly connected with a right supporting sliding gear pull rope, the supporting sliding gear block on the right side is fixedly connected with a left supporting sliding gear pull rope, pedal reset shafts rotatably connected with the front and rear cavity walls are arranged on the upper and lower sides of the protection driving cavity, a pedal winding wheel is fixed at the rear end of each pedal reset shaft, and the left pedal pull rope is fixedly connected to the pedal winding wheel, the below be fixed with on the footboard rope sheave right side footboard stay cord, footboard release shaft front end splined connection have with protection drive gear meshing's footboard glide gear, be equipped with the forward footboard glide gear groove of opening in the preceding terminal surface of footboard glide gear, footboard glide gear inslot is equipped with footboard glide gear piece, fixedly connected with footboard glide gear spring on the preceding terminal surface of footboard glide gear piece, footboard glide gear spring other end is fixed on the chamber wall before the protection drive chamber.

The front end face of the pedal sliding gear block above is also fixedly connected with an upper pedal sliding gear pull rope, the front end face of the pedal sliding gear block below is fixedly connected with a lower pedal sliding gear pull rope, the lifting mechanism comprises a lifting rotating block cavity which is arranged behind the lifting rotating cavity and communicated with the lifting rotating cavity, a lifting driving cavity communicated with the lifting rotating cavity is also arranged in the lower cavity wall in front of the lifting rotating cavity, a lifting driving motor is fixed on the lower cavity wall in the lifting driving cavity, the upper end face of the lifting driving motor is in power connection with a lifting main shaft of which the upper end extends into the lifting rotating cavity, the lower end of the lifting main shaft is fixedly connected with a lifting driving gear, the upper end of the lifting main shaft is in splined connection with a lifting sliding gear, a lifting sliding gear groove with a downward opening is arranged in the lower end face of the lifting sliding gear, and a lifting sliding gear block is, the lifting device is characterized in that a lifting sliding gear spring is fixedly connected to the lower end face of the lifting sliding gear block, the other end of the lifting sliding gear spring is fixed to the lower cavity wall of the lifting rotating cavity, a lifting sliding gear pull rope is fixedly connected to the lower end face of the lifting sliding gear block, lifting control shaft grooves communicated with the lifting sliding gear pull rope are formed in the upper cavity wall and the lower cavity wall in front of the lifting driving cavity, a pull rope control shaft is slidably connected to the lifting control shaft grooves, and a lifting control rotating block is rotatably connected to the lower end face of the pull rope control shaft.

The lower end face of the right pedal stop pull rope is fixedly connected with a lifting control spring, the other end of the lifting control spring is fixed on the lower cavity wall of the lifting control shaft groove, the lower end face of the lifting control rotating block is also fixedly connected with the lifting sliding gear pull rope, the upper end of the pull rope control shaft is fixedly provided with a lifting control gear meshed with the lifting driving gear, the upper end of the pull rope control shaft is also fixedly provided with a lifting rope winding wheel, the lower end of the pull rope control shaft is fixedly connected with a lifting stop wheel, the lower cavity wall of the lifting control shaft groove is fixedly connected with a lifting electromagnet, the rear end of the lifting rotating cavity is provided with a lifting frame of which the upper end extends out of the cavity wall and the wire segment extends into the lifting rotating block cavity, the lower end of the lifting frame is rotatably connected with a lifting frame rotating block which is slidably connected with the cavity wall of the lifting rotating block, and the lower end face of the lifting rotating block, the other end of the lifting rotating block spring is fixed on the lower cavity wall of the lifting rotating block cavity.

The lifting frame is characterized in that the upper end face of the lifting frame rotating block is fixedly connected with the protection ball locking stay rope, the lower cavity wall behind the lifting rotating cavity is rotatably connected with a lifting frame rotating gear which is connected with a lifting frame spline and meshed with the lifting sliding gear, the lifting stay rope is arranged at the front end of the lifting frame, the lower end of the lifting stay rope is fixed with the lifting block, and the other end of the lifting stay rope penetrates through the lifting frame, penetrates through the machine shell and penetrates into the lifting driving cavity to be fixed on the lifting rope winding wheel.

Advantageously, the spring force of the pull-up control spring is greater than the spring force of the pull-up control rotary block, and the spring force of the support starting spring is greater than the sum of the spring forces of the support sliding gear spring and the pedal sliding gear spring.

The invention has the beneficial effects that: the slope protection mechanism in the device can carry out the hull of slope to support, when the heavy object is overweight, when making the ship sway the slope, and guarantee to reduce the range of its slope when shifting the heavy object on the ship, stretch out the footboard simultaneously and connect the pier, make the hull slope excessively can't stand the time, people on the ship flee easily, through lifting by crane the mechanism, can be with the ship of hoisting by crane of goods safety, guarantee its normal work, thereby guaranteed the danger of personnel on lifting by crane in-process ship, further make the ship be difficult for overturning and guarantee the safety of crowd on every side.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic front view of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure A-A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the structure B-B in FIG. 2 according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the structure C-C shown in FIG. 1 according to an embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The small crane ship with overload shaking protection function in hoisting shown in the attached drawings 1-4 comprises a casing 10, open pedal cavities 12 are arranged at the left end and the right end above the casing 10, a slope protection mechanism 83 for preventing a ship body from inclining is arranged in the pedal cavity 12, a lifting rotation cavity 79 with an upward opening is arranged at the rear of the casing 10, a lifting mechanism 84 for lifting goods to the ship is arranged in the lifting rotation cavity 79, a pedal shaft 34 slidably connected with the wall of the pedal cavity 12 is arranged in the pedal cavity 12, a pedal 13 is rotatably connected with the right end of the pedal shaft 34, a pedal spring 33 is fixedly connected with the left end surface of the pedal shaft 34, the other end of the pedal spring 33 is fixed on the left wall of the pedal cavity 12, a right pedal pull rope 32 is fixedly connected with the left end of the pedal shaft 34 at the right side, a left pedal pull rope 41 is fixedly connected with the right end surface of the pedal shaft 34 at, a pedal stopping cavity 37 communicated with the pedal cavity 12 is arranged in the lower cavity wall of the pedal cavity 12, a pedal stopping block 35 with the upper end extending out of the cavity is arranged in the pedal stopping cavity 37, a pedal stopping spring 36 is fixedly connected to the lower end face of the pedal stopping block 35, the other end of the pedal stopping spring 36 is fixed to the lower cavity wall of the pedal stopping cavity 37, a right pedal stopping pull rope 27 is fixedly connected to the lower end face of the right pedal stopping block 35, a left pedal stopping pull rope 14 is fixedly connected to the lower end face of the left pedal stopping block 35, a protection control cavity 11 is arranged in the middle of the casing 10, a protection ball 31 slidably connected with the cavity wall of the protection control cavity 11 is arranged in the protection control cavity 11, slider grooves 29 communicated with the protection ball groove 29 are arranged in the left cavity wall of the protection control cavity 11, protection ball sliders 28 slidably connected with the slider grooves 29 are arranged in the protection ball sliders 28, and protection ball springs 30 are fixedly connected to the left end and, the other end of the protection ball spring 30 is fixed on the protection ball sliding block 28, a protection ball locking cavity 19 communicated with the protection ball locking cavity is arranged in the lower cavity wall in the middle of the protection control cavity 11, a protection ball locking block 22 with the upper end extending into the protection control cavity 11 is arranged in the protection ball locking cavity 19, a protection ball locking spring 20 is fixedly connected to the lower end face of the protection ball locking block 22, the other end of the protection ball locking spring 20 is fixed on the lower cavity wall of the protection ball locking cavity 19, a protection ball locking pull rope 21 is also fixedly connected to the lower end face of the protection ball locking block 22, support starting cavities 39 communicated with the protection ball locking spring 20 are arranged in the lower cavity walls on the left side and the right side of the protection control cavity 11, support starting blocks 26 with the upper ends extending into the protection control cavity 11 are arranged in the support starting cavities 39, and support starting springs 24 are fixedly connected to the lower end faces of the support starting blocks 26, the other end of the supporting starting spring 24 is fixed on the wall of the supporting starting cavity 39 lower cavity, and the left side is fixedly connected with a right supporting sliding gear pull rope 25 on the end surface of the supporting starting block 26, and the left side is fixedly connected with a lower pedal sliding gear pull rope 23 on the end surface of the supporting starting block 26, and the left side is fixedly connected with a right pedal stopping pull rope 27 on the upper end surface of the supporting starting block 26, and a left supporting sliding gear pull rope 38 on the end surface of the supporting starting block 26.

Beneficially, the lower end face of the right side support starting block 26 is further fixedly connected with an upper pedal sliding gear pull rope 42, the upper end face of the right side support starting block 26 is further fixedly connected with the left pedal locking pull rope 14, the left side and the right side of the lower portion of the casing 10 are both provided with an open support plate cavity 18, the upper cavity wall of the support plate cavity 18 is rotatably connected with a support pin shaft 15, the lower end of the support pin shaft 15 is fixedly connected with a support plate 17, a support torsion spring 16 is fixedly connected in the support pin shaft 15, the other end of the support torsion spring 16 is fixed on the cavity wall of the support plate cavity 18, a protection driving cavity 43 is arranged at the rear of the middle portion of the casing 10, a protection driving motor 49 is fixed on the front cavity wall of the protection driving cavity 43, a protection main shaft 40 is dynamically connected on the rear face of the protection driving motor 49, a protection driving gear 50 is fixed at the front end of the protection main shaft 40, and, the front end of the supporting driven shaft 45 is connected with a supporting sliding gear block 47 meshed with the protection driving gear 50 through a spline, a supporting sliding gear groove 44 with a backward opening is arranged in the rear end face of the supporting sliding gear block 47, a supporting sliding gear block 47 is arranged in the supporting sliding gear groove 44, a supporting sliding gear spring 46 is fixedly connected to the rear end face of the supporting sliding gear block 47, the other end of the supporting sliding gear spring 46 is fixed to the rear cavity wall of the protection driving cavity 43, the supporting sliding gear block 47 on the left side is fixedly connected with the right supporting sliding gear pull rope 25, the supporting sliding gear block 47 on the right side is fixedly connected with the left supporting sliding gear pull rope 38, pedal reset shafts 51 rotatably connected with the front and rear cavity walls are arranged on the upper and lower sides of the protection driving cavity 43, and pedal reel wheels 52 are fixed to the rear ends of the pedal reset shafts 51, the top fixedly connected with on the footboard rope winding wheel 52 left pedal stay cord 41, the below be fixed with on the footboard rope winding wheel 52 right pedal stay cord 32, footboard reset shaft 51 front end splined connection with protection drive gear 50 meshing's footboard glide gear 53, be equipped with the forward footboard glide gear groove 54 of opening in the footboard glide gear 53 front end face, be equipped with footboard glide gear piece 55 in footboard glide gear groove 54, fixedly connected with footboard glide gear spring 56 on the footboard glide gear piece 55 front end face, the footboard glide gear spring 56 other end is fixed on the protection drive chamber 43 front cavity wall.

Advantageously, the front end face of the upper pedal sliding gear block 55 is further fixedly connected with an upper pedal sliding gear pull rope 42, the front end face of the lower pedal sliding gear block 55 is fixedly connected with the lower pedal sliding gear pull rope 23, the lifting mechanism 84 comprises a lifting rotating block cavity 63 which is arranged in the lower cavity wall behind the lifting rotating cavity 79 and is communicated with the lifting rotating cavity, a lifting driving cavity 67 which is communicated with the lifting rotating cavity is further arranged in the lower cavity wall in front of the lifting rotating cavity 79, a lifting driving motor 68 is fixed on the lower cavity wall in the lifting driving cavity 67, the upper end face of the lifting driving motor 68 is dynamically connected with a lifting spindle 82 of which the upper end extends into the lifting rotating cavity 79, the lower end of the lifting spindle 82 is fixedly connected with a lifting driving gear 66, the upper end of the lifting spindle 82 is connected with a lifting sliding gear 80 through a spline, a lifting sliding gear groove 60 with a downward opening is arranged in the lower end face, the lifting sliding gear groove 60 is internally provided with a lifting sliding gear block 81, the lower end face of the lifting sliding gear block 81 is fixedly connected with a lifting sliding gear spring 78, the other end of the lifting sliding gear spring 78 is fixed on the lower cavity wall of the lifting rotating cavity 79, the lower end face of the lifting sliding gear block 81 is fixedly connected with a lifting sliding gear pull rope 71, the upper cavity wall and the lower cavity wall in front of the lifting driving cavity 67 are respectively provided with a lifting control shaft groove 69 communicated with the lifting sliding gear pull rope, the lifting control shaft groove 69 is internally provided with a pull rope control shaft 77 connected in a sliding manner, and the lower end face of the pull rope control shaft 77 is rotatably connected with a lifting control rotating block 72.

Advantageously, the lower end surface of the right pedal stopping pulling rope 27 is fixedly connected with a pulling-up control spring 70, the other end of the pulling-up control spring 70 is fixed on the lower cavity wall of the pulling-up control shaft groove 69, the lower end surface of the pulling-up control rotating block 72 is also fixedly connected with the pulling-up sliding gear pulling rope 71, the upper end of the pulling rope control shaft 77 is fixed with a pulling-up control gear 76 engaged with the pulling-up driving gear 66, the upper end of the pulling rope control shaft 77 is also fixed with a pulling-up rope winding wheel 75, the lower end of the pulling rope control shaft 77 is fixedly connected with a pulling-up stopping wheel 74, the lower cavity wall of the pulling-up control shaft groove 69 is fixedly connected with a pulling-up electromagnet 73, the rear end of the lifting rotating cavity 79 is provided with a lifting frame 59 whose upper end extends out of the cavity wall and whose line segment extends into the lifting rotating block cavity 63, the lower end of the lifting frame 59 is, a lifting rotating block spring 64 is fixedly connected to the lower end face of the lifting frame rotating block 62, and the other end of the lifting rotating block spring 64 is fixed to the lower cavity wall of the lifting rotating block cavity 63.

Advantageously, the upper end face of the lifting frame rotating block 62 is fixedly connected with the protection ball locking rope 21, the lower cavity wall behind the lifting rotating cavity 79 is rotatably connected with a lifting frame rotating gear 61 which is splined with the lifting frame 59 and is meshed with the lifting sliding gear 80, the front end of the lifting frame 59 is provided with a lifting rope 58, the lower end of the lifting rope 58 is fixed with a lifting block 57, and the other end of the lifting rope 58 penetrates through the lifting frame 59, then penetrates through the machine shell 10 and penetrates through the lifting driving cavity 67 to be fixed on the lifting rope pulley 75.

Advantageously, the tension control spring 70 has a spring force greater than the tension control rotary block 72, and the support activation spring 24 has a spring force greater than the sum of the spring forces of the support and pedal

slide gear springs

46 and 56.

Sequence of mechanical actions of the whole device:

1: in the initial state, the lifting frame turning block 62 and the lifting frame 59 are bounced by the lifting turning block spring 64, so that the protecting ball stopping pull rope 21 is loosened, the protecting ball stopping block 22 is positioned in the protecting control cavity 11 to press the protecting ball 31 to be fixed on the upper cavity wall of the protecting control cavity 11, the supporting starting block 26 is not pressed down, so that the right supporting sliding gear pull rope 25, the lower pedal sliding gear pull rope 23, the upper pedal sliding gear pull rope 42 and the left supporting sliding gear pull rope 38 are all tensioned, so that the two supporting sliding gears 48 are disengaged from the protecting drive gear 50, the two pedal sliding gears 53 are engaged with the protecting drive gear 50, the left pedal stopping pull rope 14 and the right pedal stopping pull rope 27 are loosened, the two shafts 34 and the two pedals 13 are clamped in the two pedal cavities 12 by the two pedal stopping blocks 35, the lifting electromagnet 73 works to disengage the lifting control gear 76 from the lifting drive gear 66, the hoist rope 58 is released causing the hoist trolley gear rope 71 to be released causing the hoist rotation cavity 79 to engage the hoist frame rotation gear 61.

2: when the operation is required, the lifting driving motor 68 operates to drive the lifting spindle 82, the lifting driving gear 66, the lifting sliding gear 80, the lifting frame rotating gear 61 and the lifting frame 59 to rotate, so that the lifting frame 59 rotates to dock, the lifting block 57 fixes the goods, then the lifting electromagnet 73 stops operating to enable the lifting control gear 76 to be meshed with the lifting driving gear 66, the lifting sliding gear 80 is disengaged from the lifting frame rotating gear 61, so that the lifting driving gear 66 drives the lifting control gear 76, the pull rope control shaft 77, the lifting stop wheel 74 and the lifting rope winding wheel 75 to rotate, so that the goods are lifted, at the moment, the lifting frame 59 lifting frame rotating block 62 compresses the lifting rotating block spring 64 due to the heavy object, so that the protective ball stop pull rope 21 is tensioned, so that the protective ball stop block 22 is pulled back into the protective ball stop cavity 19, and the protective ball 31 is loosened in the protective control cavity 11, then the pulling electromagnet 73 works again to make the pulling control gear 76 disengaged with the pulling driving gear 66, make the lifting sliding gear 80 engaged with the lifting frame rotating gear 61, make the lifting frame 59 offset towards the inner side of the ship, in the process, the heavy object offset towards the other side of the ship due to the heavy object, and cause the ship body to incline violently, at this time, the protection ball 31 will slide towards the inclined side, and press the support starting block 26 at the inclined side, such as the left side, so that the right support sliding gear pulling rope 25 and the lower pedal sliding gear pulling rope 23 are loosened, the right pedal locking pulling rope 27 is tightened, and further the pedal shaft 34 and the pedal 13 are extended out of the cavity under the action of the pedal spring 33, so that the people on the ship can escape in danger, at the same time, the right support sliding gear 48 is engaged with the protection driving gear 50, the lower pedal sliding gear 53 is disengaged with the protection driving gear 50, the protection driving motor 49 rotates to drive the protection main shaft 40, the protection driving gear 50, the support sliding gear 48 and the support pin shaft 15 to rotate, so that the right support plate 17 extends out of the support plate cavity 18 rightwards and is supported at the bottom of the wharf to prevent the ship body from excessively inclining, then when the ship body is horizontal, the protection ball 31 is positioned at the center of the protection control cavity 11 again to enable the support starting block 26 to be loosened, the left support starting block 26 to be loosened to enable the right support sliding gear pull rope 25 and the lower pedal sliding gear pull rope 23 to be tightened, the right pedal stop pull rope 27 to be loosened again, at the moment, the right support sliding gear 48 is disengaged from the protection driving gear 50 again, the lower pedal sliding gear 53 is engaged with the protection driving gear 50, the protection driving gear 50 drives the pedal sliding gear 53, the pedal resetting shaft 51 and the pedal rope coiling wheel 52 to rotate, and the right, therefore, the pedal shaft 34 and the pedal 13 are pulled into the pedal cavity 12 and clamped by the pedal stop block 35 again, the support pin shaft 15 and the support plate 17 return to the support plate cavity 18 to reset under the action of gravity and the support torsion spring 16, if the wharf is on the left side, the support plate 17 and the pedal 13 on the left side extend to prevent excessive inclination, the drive motor 49 is protected to stop working after the support pin shaft and the support plate are horizontally retracted and reset, then the pulling electromagnet 73 stops working, and the lifting control gear 76 is meshed with the pulling drive gear 66, so that the lifting pull rope 58 is placed on the ship to finish the work.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a small-size jack-up ship of overload roll protection during jack-up, includes the casing, its characterized in that: the ship body lifting mechanism is characterized in that the left end and the right end above the shell are both provided with open pedal cavities, the pedal cavities are internally provided with inclination protection mechanisms for preventing the ship body from inclining, the rear direction of the shell is provided with a lifting rotating cavity with an upward opening, a lifting mechanism for lifting goods onto a ship is arranged in the lifting rotating cavity, the pedal cavities are internally provided with pedal shafts in sliding connection with the cavity walls, the right ends of the pedal shafts are rotatably connected with pedals, the left end surfaces of the pedal shafts are fixedly connected with pedal springs, the other ends of the pedal springs are fixed on the left cavity walls of the pedal cavities, the left ends of the right sides of the pedal shafts are also fixedly connected with right pedal pull ropes, the right end surfaces of the left sides of the pedal shafts are also fixedly connected with left pedal pull ropes, the lower cavity walls of the pedal cavities are both provided with pedal locking cavities communicated with the pedal locking cavities, the pedal locking cavities are internally provided with, the other end of the pedal stop spring is fixed on the lower cavity wall of the pedal stop cavity, the lower end face of the pedal stop block on the right side is also fixedly connected with a right pedal stop pull rope, the lower end face of the pedal stop block on the left side is also fixedly connected with a left pedal stop pull rope, the middle part of the casing is provided with a protection control cavity, a protection ball in sliding connection with the cavity wall of the protection control cavity is arranged in the protection control cavity, the left cavity wall and the right cavity wall of the protection control cavity are both provided with a slider groove communicated with the protection ball groove, a protection ball slider in sliding connection with the slider groove is arranged in the slider groove, the left end and the right end of the protection ball slider are both fixedly connected with a protection ball spring, the other end of the protection ball spring is fixed on the protection ball slider, the protection ball stop cavity communicated with the protection ball is arranged in the lower cavity wall of the middle part of the protection control cavity, the protection, the lower end face of the protection ball stop block is fixedly connected with a protection ball stop spring, the other end of the protection ball stop spring is fixed on the lower cavity wall of the protection ball stop cavity, the lower end face of the protection ball stop block is also fixedly connected with a protection ball stop pull rope, the lower cavity walls on the left side and the right side of the protection control cavity are both provided with a support starting cavity communicated with the protection ball stop spring, the support starting cavity is internally provided with a support starting block the upper end of which extends into the protection control cavity, the lower end face of the support starting block is fixedly connected with a support starting spring, the other end of the support starting spring is fixed on the lower cavity wall of the support starting cavity, the lower end face of the support starting block on the left side is also fixedly connected with a right support sliding gear pull rope, the lower end face of the support starting block on the left side is also fixedly connected with a lower pedal sliding gear pull rope, and, the lower end face of the right supporting starting block is also fixedly connected with a left supporting sliding gear pull rope.

2. A small crane vessel for overload roll protection during lifting according to claim 1 wherein: the lower end surface of the right supporting starting block is also fixedly connected with an upper pedal sliding gear pull rope, the upper end surface of the right supporting starting block is also fixedly connected with a left pedal stop pull rope, the left side and the right side below the casing are both provided with an open supporting plate cavity, the upper cavity wall of the supporting plate cavity is rotatably connected with a supporting pin shaft, the lower end of the supporting pin shaft is fixedly connected with a supporting plate, a supporting torsion spring is fixedly connected in the supporting pin shaft, the other end of the supporting torsion spring is fixed on the cavity wall of the supporting plate cavity, the rear part of the middle part of the casing is provided with a protective driving motor which is fixed on the front cavity wall of a protective driving cavity, the rear part of the protective driving motor is connected with a protective main shaft in a power mode, the front end of the protective main shaft is fixedly connected with a protective driving gear, the front end of the supporting driven shaft is connected with a supporting sliding gear block meshed with the protection driving gear through a spline, a supporting sliding gear groove with a backward opening is arranged in the rear end face of the supporting sliding gear block, a supporting sliding gear block is arranged in the supporting sliding gear groove, a supporting sliding gear spring is fixedly connected to the rear end face of the supporting sliding gear block, the other end of the supporting sliding gear spring is fixed on the rear cavity wall of the protection driving cavity, the supporting sliding gear block on the left side is fixedly connected with a right supporting sliding gear pull rope, the supporting sliding gear block on the right side is fixedly connected with a left supporting sliding gear pull rope, pedal reset shafts rotatably connected with the front and rear cavity walls are arranged on the upper and lower sides of the protection driving cavity, a pedal winding wheel is fixed at the rear end of each pedal reset shaft, and the left pedal pull rope is fixedly connected to the pedal winding wheel, the below be fixed with on the footboard rope sheave right side footboard stay cord, footboard release shaft front end splined connection have with protection drive gear meshing's footboard glide gear, be equipped with the forward footboard glide gear groove of opening in the preceding terminal surface of footboard glide gear, footboard glide gear inslot is equipped with footboard glide gear piece, fixedly connected with footboard glide gear spring on the preceding terminal surface of footboard glide gear piece, footboard glide gear spring other end is fixed on the chamber wall before the protection drive chamber.

3. A small crane vessel for overload roll protection during lifting according to claim 1 wherein: the front end face of the pedal sliding gear block above is also fixedly connected with an upper pedal sliding gear pull rope, the front end face of the pedal sliding gear block below is fixedly connected with a lower pedal sliding gear pull rope, the lifting mechanism comprises a lifting rotating block cavity which is arranged in the rear lower cavity wall of the lifting rotating cavity and communicated with the lifting rotating cavity, a lifting driving cavity communicated with the lifting rotating cavity is also arranged in the front lower cavity wall of the lifting rotating cavity, a lifting driving motor is fixed on the lower cavity wall in the lifting driving cavity, the upper end face of the lifting driving motor is in power connection with a lifting main shaft of which the upper end extends into the lifting rotating cavity, the lower end of the lifting main shaft is fixedly connected with a lifting driving gear, the upper end of the lifting main shaft is in splined connection with a lifting sliding gear, a lifting sliding gear groove with a downward opening is arranged in the lower end face of the lifting sliding gear, the lifting device is characterized in that a lifting sliding gear spring is fixedly connected to the lower end face of the lifting sliding gear block, the other end of the lifting sliding gear spring is fixed to the lower cavity wall of the lifting rotating cavity, a lifting sliding gear pull rope is fixedly connected to the lower end face of the lifting sliding gear block, lifting control shaft grooves communicated with the lifting sliding gear pull rope are formed in the upper cavity wall and the lower cavity wall in front of the lifting driving cavity, a pull rope control shaft is slidably connected to the lifting control shaft grooves, and a lifting control rotating block is rotatably connected to the lower end face of the pull rope control shaft.

4. A small crane vessel for overload roll protection during lifting according to claim 1 wherein: the lower end face of the right pedal stopping pull rope is fixedly connected with a pulling control spring, the other end of the pulling control spring is fixed on the lower cavity wall of the pulling control shaft groove, the lower end face of the pulling control rotating block is also fixedly connected with the pulling sliding gear pull rope, the upper end of the pulling control shaft is fixedly provided with a pulling control gear meshed with the pulling driving gear, the upper end of the pulling control shaft is also fixedly provided with a pulling rope winding wheel, the lower end of the pulling control shaft is fixedly connected with a pulling stopping wheel, the lower cavity wall of the pulling control shaft groove is fixedly connected with a pulling electromagnet, the rear end of the lifting rotating cavity is provided with a lifting frame of which the upper end extends out of the cavity wall and the wire segment extends into the cavity of the lifting rotating block, the lower end of the lifting frame is rotatably connected with a lifting frame rotating block which is slidably connected with the cavity wall of the lifting rotating block, and the lower end face of the lifting frame, the other end of the lifting rotating block spring is fixed on the lower cavity wall of the lifting rotating block cavity.

5. A small crane vessel for overload roll protection during lifting according to claim 1 wherein: the protection ball locking stay cord is fixedly connected to the upper end face of the lifting frame rotating block, a lifting frame rotating gear which is connected with a lifting frame spline and meshed with the lifting sliding gear is rotatably connected to the lower cavity wall behind the lifting rotating cavity, a lifting stay cord is arranged at the front end of the lifting frame, a lifting block is fixed to the lower end of the lifting stay cord, and the other end of the lifting stay cord penetrates through the lifting frame, penetrates through the machine shell and penetrates into the lifting driving cavity and is fixed to the lifting rope winding wheel.

6. A small crane vessel for overload roll protection during lifting according to claim 1 wherein: the elasticity of the pulling-up control spring is greater than that of the pulling-up control rotating block, and the elasticity of the support starting spring is greater than the sum of the elasticity of the support sliding gear spring and the elasticity of the pedal sliding gear spring.