CN220976386U - Mobile crane boom rest for ship - Google Patents
Mobile crane boom rest for ship Download PDFInfo
- Publication number
- CN220976386U CN220976386U CN202322497871.6U CN202322497871U CN220976386U CN 220976386 U CN220976386 U CN 220976386U CN 202322497871 U CN202322497871 U CN 202322497871U CN 220976386 U CN220976386 U CN 220976386U
- Authority
- CN
- China
- Prior art keywords
- structure body
- steel
- jacking
- steel structure
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 86
- 239000010959 steel Substances 0.000 claims abstract description 86
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 239000004677 Nylon Substances 0.000 claims abstract description 17
- 229920001778 nylon Polymers 0.000 claims abstract description 17
- 241000288140 Gruiformes Species 0.000 description 23
- 238000000034 method Methods 0.000 description 15
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 241000124872 Grus grus Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model discloses a movable crane arm support rest for a ship, which comprises a steel structure body, a roller mechanism, a jacking mechanism, a power mechanism and a fixing bolt, wherein eye plates are arranged on the front side and the rear side of the steel structure body, the roller mechanism comprises a plurality of rollers and a plurality of roller shafts, the rollers are rotatably arranged on the roller shafts, and a steel wheel with a brake for assisting movement is arranged at the lower end of the steel structure body; the jacking mechanism comprises a manual pump, a jack and a jacking nylon block, wherein the manual pump drives the jack to drive the jacking nylon block to move up and down, so that the jacking nylon block is abutted against the deck surface of the ship, and the two jacking mechanisms are distributed at two ends of the steel structure body; the power mechanism comprises a manual winch support and a manual winch. When the device is used, the arm support is placed along the midship line, so that the problem that the offset load is generated when the arm support is biased is avoided, the placing frame can be moved to the side of the ship from the midship through the steel wheels, the space at the stern is reserved, the space utilization rate of the ship is improved, and the problem that the space at the stern is insufficient is effectively solved.
Description
Technical Field
The utility model relates to the technical field of movable marine crane boom rest frames, in particular to a movable marine crane boom rest frame.
Background
Currently, a ship crane is used as a cargo loading and unloading and personnel conveying device and is common to various ships. In the sailing process of the ship, the motion state of the ship body can change along with the influence of sea conditions, so that impact load is brought to various facilities on the ship. So that the arm support of the marine crane is required to bear a certain impact load in addition to the dead weight in the marine navigation process. Therefore, a boom rest is usually arranged on the ship deck to share the boom load so as to protect the crane boom and prolong the service life of the crane.
Patent document with application number "CN202011620604.8" discloses a marine crane comprising: the lifting mechanism comprises a lifting steel wire rope, a lifting motor, a speed reducer and a lifting winding drum, wherein a movable pulley is arranged on the lifting hook group, a lifting fixed pulley, a traction pulley, an operation wheel and a horizontal guide wheel are arranged on the lifting trolley, and the trolley traction mechanism comprises a traction winding drum and a traction steel wire rope; the lifting mechanism is fixedly connected with the tail part of the crane arm support; one end of the lifting steel wire rope is fixed on the lifting winding drum, and the other end of the lifting steel wire rope sequentially passes through the guide pulley, the lifting fixed pulley, the movable pulley and the lifting fixed pulley and then is connected with the fixed end of the steel wire rope.
The patent document with the application number of CN201310607061.X discloses a fixed-arm crane for a ship, which comprises a base, wherein a tower body is arranged on the base through a slewing bearing, a suspension arm is hinged on one side of the tower body, and a pull rod is arranged between the upper part of one side of the tower body and the suspension arm; and a lifting winch is arranged on the other side of the tower body, and a steel wire rope on the lifting winch passes through the first pulley block at the top of the tower body and the second pulley block at the head of the suspension arm to be connected with the lifting hook. The invention has compact structure, convenient installation and low cost, is mainly suitable for small ships, has narrow space, has limited working space on the ship body and is not beneficial to the luffing motion of the crane.
In summary, the above patent documents disclose, in combination with the prior art, that the existing boom rest frame of the mobile marine crane has the following drawbacks:
common crane boom rest frames are generally composed of a steel structural body and a skid. Wherein, the skid is installed between the crane arm frame and the rest steel structure body, and plays roles of avoiding collision and reducing friction and abrasion. The steel structure body is welded on the deck and is used for bearing the dead weight load of the arm support and the impact load caused by ship movement. For a large crane, in order to bear the load of the crane arm support as much as possible and avoid the adverse effect caused by offset load generated by the offset of the arm support, the arm support rest is usually arranged at the stern and symmetrically arranged about the midship line, so that the vertical plane where the axis of the arm support and the midship line are located is formed. The arrangement mode needs to occupy the area near the midship line of the stern, has low space utilization rate, has a certain influence on the passing of moving facilities on the deck, and is not beneficial to the installation and use of other facilities at the stern.
Disclosure of utility model
The utility model aims to solve the technical problems, and provides a movable crane boom rest for a ship, which can solve the problem of insufficient stern space and inconvenient movement.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The movable crane arm rest rack for the ship comprises a steel structure body, a roller mechanism, two jacking mechanisms, two power mechanisms and a plurality of fixing bolts, wherein eye plates are arranged on the front side and the rear side of the steel structure body, the roller mechanism is arranged on the upper end face of the steel structure body, the roller mechanism comprises a plurality of rollers and a plurality of roller shafts, the rollers are rotatably arranged on the roller shafts, and a plurality of roller shafts form end faces for the arm rest; the lower end of the steel structure body is provided with a steel wheel with brake for assisting movement; the jacking mechanism comprises a manual pump, a jack and jacking nylon blocks, the manual pump drives the jack to drive the jacking nylon blocks to move up and down, so that the jacking nylon blocks are abutted against the deck surface of the ship, and the two jacking mechanisms are distributed at two ends of the steel structure body; the power mechanism comprises a manual winch support and a manual winch, the manual winch is fixed on the manual winch support, a steel wire rope of the manual winch is connected with the eye plate, and a plurality of detachable fixing bolts are arranged on the steel structure body and used for fixing.
Further, the steel structure body comprises a top supporting plate, a middle truss pipe and a bottom support, wherein the top supporting plate is fixed at the upper end of the middle truss pipe, and the bottom support is fixed at the lower end of the middle truss pipe.
Further, the cross section of the middle truss pipe is trapezoid, and the area of the top supporting plate is smaller than that of the bottom support.
Further, the number of the steel wheels with the brakes is 4, and the steel wheels with the brakes are arranged on the bottom support.
Further, the steel wheels with the brake for assisting in moving are arranged at two ends of the steel structure body, and a deck embedded rail is arranged at the lower part of the steel wheels with the brake.
Further, the movable crane boom rest for the ship further comprises a limiting mechanism, wherein the limiting mechanism comprises a limiting bracket and a buffer, and the buffer is arranged on the front side and the rear side of the steel structure body through fasteners.
Further, the number of the limiting mechanisms is 4.
Further, in the roller mechanism, two rows of roller shafts which are arranged in parallel are arranged, and each roller shaft is correspondingly provided with 2 rollers.
Further, a plurality of roller shafts which are arranged in parallel with each other are uniformly distributed along the length direction of the steel structure body.
A moving method of a movable crane boom rest for a ship comprises the following steps:
S10, step: disassembling a fixing bolt on the bottom support;
s20, step: the manual winch steel wire rope hanging hook is connected with the eye plate on the middle truss pipe;
S30, step: two jacks are respectively connected with the front side and the rear side of the shelf by using a manual pump, the operating handles of the manual pump are pressed, the piston rods of the jacks extend out, the nylon blocks are lifted to contact the deck, the bottom support leaves the deck surface, and the shelf is integrally lifted;
s40, step: four groups of steel wheels with brakes are arranged on two sides of the shelf to ensure that the brakes are in a fastening state;
S50, step: unloading a manual pump, retracting a jack piston rod, and landing a steel wheel with a brake on a pre-buried track of a deck, wherein a bottom support is suspended;
S60, step: four groups of limiting brackets around the initial position of the shelf are disassembled, and two groups of limiting brackets are arranged at the front end of the movement destination position of the shelf;
S70, step: loosening the brake with the brake steel wheel, shaking the handle of the manual winch, recovering the steel wire rope, and fastening the brake with the brake steel wheel when the buffer at the front end of the shelf touches the limiting mechanism;
s80, step: mounting a rear end limiting mechanism of the shelf at the movement destination position;
s90, step: pressing the manual pump operating handle, extending a piston rod of the jack, enabling the jacking nylon block to contact the upper surface of the deck pre-buried track with the brake steel wheel, and integrally lifting the rest;
S100, step: and disassembling four groups of steel wheels with brakes, unloading the manual pump after the disassembly is finished, retracting a jack piston rod, positioning a bottom support on the deck surface, and installing a fixing bolt to finish the movement of the shelf.
Compared with the prior art, the utility model has the beneficial effects that:
1. when the arm support is placed along the midship line, the arm support is prevented from being biased to generate unbalanced load, the placing frame can move to the side of the ship from the midship through the steel wheels, the stern space is reserved, the space utilization rate of the ship is improved, and the problem of insufficient stern space is effectively solved.
2. The top of the rest is provided with a roller group, the rotation direction of the roller is the width direction of the arm support, and the roller group can automatically rotate when the friction force along the width direction of the arm support reaches a certain magnitude. The roller is made of polytetrafluoroethylene, has a low sliding friction coefficient, and can slide relatively with the arm support when the roller receives a friction force along the length direction of the arm support to a certain extent. The roller can effectively reduce the lateral force of the rest frame from the arm frame along the width and length directions of the arm frame, thereby effectively solving the problem that the fixing bolt of the movable rest frame is easy to damage due to the impact of a large load.
3. The shelf moving process is completed by shaking the manual winch to recover the steel wire rope, the moving process is simple, the operation is convenient, the manpower can be completed, the cost is low, and the efficiency is high.
Drawings
FIG. 1 is a block diagram of the present utility model;
Fig. 2 is a flow chart of a moving method of the present utility model.
In the figure: 100. a steel structure body; 101. a top support plate; 102. a middle truss tube; 103. a bottom support; 104. an eye plate; 105. a fixing bolt; 200. a roller mechanism; 201. a roller; 202. a roller shaft; 300. a jacking mechanism; 301. a manual pump; 302. a jack; 303. jacking a nylon block; 401. steel wheel with brake; 402. embedding a track on a deck; 500. a limiting mechanism; 501. a limit bracket; 502. a buffer; 600. a power mechanism; 601. a manual winch support; 602. a manual winch.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a mobile crane boom rest for a ship includes a steel structure body 100, a roller mechanism 200, two jacking mechanisms 300, two power mechanisms 600, and a plurality of fixing bolts 105, wherein eye plates 104 are disposed on front and rear sides of the steel structure body 100, the roller mechanism 200 is mounted on an upper end surface of the steel structure body 100, the roller mechanism 200 includes a plurality of rollers 201 and a plurality of roller shafts 202, the rollers 201 are rotatably mounted on the roller shafts 202, and end surfaces of the roller shafts 202 for boom rest are formed; the lower end of the steel structure body 100 is provided with a steel wheel 401 with brake for assisting movement; the jacking mechanism 300 comprises a manual pump 301, a jack 302 and a jacking nylon block 303, wherein the manual pump 301 drives the jack 302 to drive the jacking nylon block 303 to move up and down, so that the jacking nylon block 303 is abutted against the deck surface of a ship, and the two jacking mechanisms 300 are distributed at two ends of the steel structure body 100; the power mechanism 600 comprises a manual winch frame 601 and a manual winch 602, the manual winch 602 is fixed on the manual winch frame 601, a steel wire rope of the manual winch 602 is connected with the eye plate 104, and a plurality of detachable fixing bolts 105 are arranged on the steel structure body 100 and used for fixing.
The technical effects are as follows:
1. when the arm support is placed along the midship line, the arm support is prevented from being biased to generate unbalanced load, the placing frame can move to the side of the ship from the midship through the steel wheels, the stern space is reserved, the space utilization rate of the ship is improved, and the problem of insufficient stern space is effectively solved.
2. The top of the rest is provided with a roller group, the rotation direction of the roller is the width direction of the arm support, and the roller group can automatically rotate when the friction force along the width direction of the arm support reaches a certain magnitude. The roller is made of polytetrafluoroethylene, has a low sliding friction coefficient, and can slide relatively with the arm support when the roller receives a friction force along the length direction of the arm support to a certain extent. The roller can effectively reduce the lateral force of the rest frame from the arm frame along the width and length directions of the arm frame, thereby effectively solving the problem that the fixing bolt of the movable rest frame is easy to damage due to the impact of a large load.
3. The shelf moving process is completed by shaking the manual winch to recover the steel wire rope, the moving process is simple, the operation is convenient, the manpower can be completed, the cost is low, and the efficiency is high.
Preferably, the steel structure body 100 includes a top support plate 101, a middle truss pipe 102, and a bottom support 103, the top support plate 101 is fixed to an upper end of the middle truss pipe 102, and the bottom support 103 is fixed to a lower end of the middle truss pipe 102. The top support plate 101, the middle truss tube 102, and the bottom support 103 are welded to form the steel structure body 100.
Preferably, the cross section of the middle truss pipe 102 is trapezoidal, and the area of the top support plate 101 is smaller than the area of the bottom support 103. The number of the steel wheels 401 with brake is 4, and the steel wheels 401 with brake are installed on the bottom support 103. The embodiment ensures that the arm support is laid along the midship line direction, and adverse effects caused by unbalanced load generated by arm support offset can be avoided while the load of the arm support of the crane is borne.
Preferably, the steel wheels 401 with brake for assisting movement are arranged at two ends of the steel structure body 100, and the lower parts of the steel wheels 401 with brake are provided with deck embedded rails 402. The deck pre-buried track 402 is welded on the deck, and the track upper surface is lower than the deck face.
Preferably, the mobile crane boom rest for a ship further comprises a limiting mechanism 500, wherein the limiting mechanism 500 comprises a limiting bracket 501 and a buffer 502, and the buffer 502 is mounted on the front side and the rear side of the steel structure body 100 through fasteners. In one embodiment, the number of the limiting mechanisms 500 is 4.
Preferably, in the roller mechanism 200, two rows of roller shafts 202 are disposed parallel to each other, and 2 rollers 201 are correspondingly mounted on each roller shaft 202. Specifically, in a preferred embodiment, a plurality of roller shafts 202 disposed parallel to each other are uniformly distributed along the length of the steel structure body 100. The rolling direction of the roller 201 is consistent with the width direction of the arm support, so that the friction force of the rest frame along the width direction of the arm support is reduced.
Referring to fig. 2, a method for moving a boom rest of a mobile marine crane includes the following steps:
S10, step: disassembling a fixing bolt on the bottom support;
s20, step: the manual winch steel wire rope hanging hook is connected with the eye plate on the middle truss pipe;
S30, step: two jacks are respectively connected with the front side and the rear side of the shelf by using a manual pump, the operating handles of the manual pump are pressed, the piston rods of the jacks extend out, the nylon blocks are lifted to contact the deck, the bottom support leaves the deck surface, and the shelf is integrally lifted;
s40, step: four groups of steel wheels with brakes are arranged on two sides of the shelf to ensure that the brakes are in a fastening state;
S50, step: unloading a manual pump, retracting a jack piston rod, and landing a steel wheel with a brake on a pre-buried track of a deck, wherein a bottom support is suspended;
S60, step: four groups of limiting brackets around the initial position of the shelf are disassembled, and two groups of limiting brackets are arranged at the front end of the movement destination position of the shelf;
S70, step: loosening the brake with the brake steel wheel, shaking the handle of the manual winch, recovering the steel wire rope, and fastening the brake with the brake steel wheel when the buffer at the front end of the shelf touches the limiting mechanism;
s80, step: mounting a rear end limiting mechanism of the shelf at the movement destination position;
s90, step: pressing the manual pump operating handle, extending a piston rod of the jack, enabling the jacking nylon block to contact the upper surface of the deck pre-buried track with the brake steel wheel, and integrally lifting the rest;
S100, step: and disassembling four groups of steel wheels with brakes, unloading the manual pump after the disassembly is finished, retracting a jack piston rod, positioning a bottom support on the deck surface, and installing a fixing bolt to finish the movement of the shelf.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.
Claims (9)
1. The movable crane arm rest rack for the ship is characterized by comprising a steel structure body, roller mechanisms, two jacking mechanisms, two power mechanisms and a plurality of fixing bolts, wherein eye plates are arranged on the front side and the rear side of the steel structure body, the roller mechanisms are arranged on the upper end face of the steel structure body, each roller mechanism comprises a plurality of rollers and a plurality of roller shafts, the rollers are rotatably arranged on the roller shafts, and the roller shafts form end faces for the arm rest;
The lower end of the steel structure body is provided with a steel wheel with brake for assisting movement; the jacking mechanism comprises a manual pump, a jack and jacking nylon blocks, the manual pump drives the jack to drive the jacking nylon blocks to move up and down, so that the jacking nylon blocks are abutted against the deck surface of the ship, and the two jacking mechanisms are distributed at two ends of the steel structure body;
The power mechanism comprises a manual winch support and a manual winch, the manual winch is fixed on the manual winch support, a steel wire rope of the manual winch is connected with the eye plate, and a plurality of detachable fixing bolts are arranged on the steel structure body and used for fixing.
2. The mobile marine crane boom rest of claim 1, wherein the steel structural body comprises a top support plate, a middle truss tube, and a bottom support, the top support plate being secured to an upper end of the middle truss tube, the bottom support being secured to a lower end of the middle truss tube.
3. The mobile marine crane boom rest of claim 2, wherein the cross section of the middle truss tube is trapezoidal and the area of the top support plate is smaller than the area of the bottom support.
4. The mobile marine crane boom rest of claim 2, wherein the number of steel wheels with brakes is 4, the steel wheels with brakes being mounted on the bottom support.
5. The mobile marine crane boom rest according to claim 4, wherein steel wheels with brake for assisting movement are arranged at two ends of the steel structure body, and a deck embedded rail is arranged at the lower part of the steel wheels with brake.
6. The mobile marine crane boom rest of claim 1, further comprising a limiting mechanism, wherein the limiting mechanism comprises a limiting bracket and a buffer, and the buffer is mounted on the front side and the rear side of the steel structure body through a fastener.
7. The mobile marine crane boom rest of claim 6, wherein the number of limit mechanisms is 4.
8. The mobile crane boom rest for ships according to claim 1, wherein in the roller mechanism, two rows of roller shafts are arranged in parallel, and each roller shaft is provided with 2 rollers.
9. The mobile marine crane boom rest of claim 8, wherein a plurality of mutually parallel roller shafts are evenly distributed along the length of the steel structure body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322497871.6U CN220976386U (en) | 2023-09-14 | 2023-09-14 | Mobile crane boom rest for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322497871.6U CN220976386U (en) | 2023-09-14 | 2023-09-14 | Mobile crane boom rest for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220976386U true CN220976386U (en) | 2024-05-17 |
Family
ID=91035435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322497871.6U Active CN220976386U (en) | 2023-09-14 | 2023-09-14 | Mobile crane boom rest for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220976386U (en) |
-
2023
- 2023-09-14 CN CN202322497871.6U patent/CN220976386U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9115693B2 (en) | Device for establishing admittance and transport of cargo to and from a wind turbine construction above ground level | |
| CN109653105B (en) | Main truss system of box girder bridge cantilever construction hanging basket and use method thereof | |
| WO2008059809A1 (en) | Bridge crane | |
| CN116239032A (en) | Modular unit hoisting equipment | |
| CN208829132U (en) | Monkey | |
| CN101028895A (en) | Method for improving port-container jack operation efficiency and jack | |
| CN220976386U (en) | Mobile crane boom rest for ship | |
| CN212151384U (en) | Lifting equipment suitable for foundation pit operation | |
| CN210419067U (en) | Movable plate lifting device for ship box body repair | |
| CN210530771U (en) | Power catwalk steel wire rope and hydraulic cylinder cooperative lifting system | |
| CN117185161A (en) | Mobile crane boom rest for ship and moving method thereof | |
| CN209652772U (en) | Box girder bridge cantilever construction main truss cradle system | |
| CN201176372Y (en) | Novel demountable traveling mast crane | |
| CN214882988U (en) | Aerial rotary lifting appliance for lifting and mounting steel box girder of suspension bridge | |
| CN214935462U (en) | Bridge crane capable of lifting in sectional mode | |
| CN206128754U (en) | Vehicle fixture for intelligent stereo garage | |
| CN211619794U (en) | Low-space simple gantry hoisting device | |
| CN210286537U (en) | Four-point crane for hoisting bin cover of transport ship | |
| CN214243561U (en) | Tower crane for building convenient to move | |
| CN113734982A (en) | European style double-beam crane | |
| CN111776926A (en) | Mine cradle replacing device and replacing method thereof | |
| CN106968253B (en) | Steel pipe pile single-point hoisting system and steel pipe pile single-point hoisting method | |
| CN219860257U (en) | Anti-deflection portal crane | |
| CN218538980U (en) | Gantry crane | |
| CN221546436U (en) | Construction device for assisting in installing ALC wallboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |