CN110342438A - A kind of chain lifter - Google Patents
A kind of chain lifter Download PDFInfo
- Publication number
- CN110342438A CN110342438A CN201910638400.8A CN201910638400A CN110342438A CN 110342438 A CN110342438 A CN 110342438A CN 201910638400 A CN201910638400 A CN 201910638400A CN 110342438 A CN110342438 A CN 110342438A
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- China
- Prior art keywords
- scotch
- cylinder
- mobile
- retaining mechanism
- fixing
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
Abstract
The present invention relates to a kind of chain lifters.Chain lifter includes anchor chain, four scotch, master cylinder, two rigid locking organization cylinders, anchor chain slot, bottom frame, mobile upper cover plate, mobile lower cover plate, pin shaft, screw, mobile retaining mechanism and fixing and locking mechanism.Master cylinder is equipped between mobile retaining mechanism and fixing and locking mechanism, master cylinder one end is connected and fixed retaining mechanism, and the other end connects mobile retaining mechanism, and fixing and locking mechanism is fixed on bottom frame；Fixing and locking mechanism and mobile retaining mechanism are made of two scotch, a rigid locking organization cylinder respectively, the both ends of the rigid locking organization cylinder are separately connected two scotch, and two scotch all pass through corresponding pin shaft and are fixed on bottom frame and can rotate around itself pin shaft；Anchor chain slot sequentially passes through two scotch of mobile retaining mechanism and fixing and locking mechanism, is placed in preparatory anchor chain slot；The present invention has stability good, and easy to control, applicability is wide, at low cost, advantages of simple structure and simple.
Description
Technical field
The invention belongs to technical field of engineering machinery, are related to lifting device, in particular to a kind of chain lifter.
Background technique
Engineering machinery is the engineering goods for engineering construction.As a member of typical project machinery, lifter is just more next
It is applied to raising of a wreck, construction, mining etc. more.Due to its stability and wide applicability, become state
Inside and outside engineering machinery manufacturer tries to be the first the targets of research and development.
The development and utilization of marine resources is increasingly valued by people, sea transport industry, shipbuilding industry, marine oil and gas
Industry, fishing aquaculture and coastal tourism continue to develop, and the quantity of large vessel is continuously increased.For strategies such as harbour, navigation channels
The safety of resource, and reply ship, because toppling caused by contingency, the research significance of lifter is apparent.In addition,
With the continuous improvement of people's quality of the life, the requirement for architectural image style etc. is higher and higher, using longspan structure steel
Construction for lifter, more stringent requirements are proposed.At present common lifter have guide tracked, capstan winch suspension arm chain type and
Chain type.
The guide tracked lifter that patent CN204999572U is introduced is widely used in machinery, metallurgy, building, chemical industry, medical treatment, family
Tool, logistics, the various industries such as cultural health, for the goods handling between production line difference in height, cargo it is online, under
Line, the feeding of large-scale hangar, blanking, storage handling and fork truck etc. match and handling of cargo etc..But promote the complete of object
Portion's weight all concentrates on guide rail, and guide rail intensity is difficult enhancing too much again, can not promote heavier article.
Capstan winch suspension arm chain type lifting device carries out raising and lowering movement to boom by Serve Motor Control hydraulic capstan,
Meanwhile boom links together with the platform for being elevated object is placed, the chain type lifting dress introduced such as patent CN108358021A
It sets, such a structure increases the load-bearing capacity of mobile platform and stability.But this device after completing just certain
The volume and external form for promoting object are limited in degree, applicability is inadequate.When promotion object is too small, it will lead to idle work and increase, mention
When liter object is excessive, and it is not able to satisfy the requirement of promotion.
For another example chain elevator described in patent CN206318653U is mainly used for drawing, salvaging a sunken ship ship, by wearing
Determine chain stopper and the mobile chain stopper for crossing anchor chain limit jointly, and chain is fixed, prevents slip from having ensured salvaging safety.But the chain
Formula elevator is mainly fixed, limits and prevent slip function, does not have lasting hoisting power, promotes target to realize,
Also need the collective effect of other devices.
Therefore, we devise chain lifter of the present invention, its structure is simple, deft design, and it is heavy to be competent at
A variety of occasions such as ship salvaging, construction, material lifting can be same with multiple groups chain lifter when needing to promote large-sized object
When use, utilize Synchronous lifting technology realize promoted require.
Summary of the invention
The object of the present invention is to provide a kind of chain lifters.Compared to guide tracked and capstan winch arm hanging type lifting device, chain
The formula lifter scope of application is wider.Fixing and locking mechanism and mobile retaining mechanism can be under the drivings of rigid locking organization cylinder
Opening and closing, when retaining mechanism is opened, mobile retaining mechanism closure when, anchor chain can follow the movement of mobile retaining mechanism and
It is mobile；When fixing and locking mechanism closure, mobile retaining mechanism are opened, chain is static, and the movement of mobile retaining mechanism will not shadow
Ring anchor chain；When the two is closed, anchor chain can play limit described in patent CN206318653U by the common limit of the two,
Prevent slip function；It is risky operation that the two, which is opened,.Master cylinder is connected and fixed retaining mechanism and mobile retaining mechanism, master cylinder
Stretch cylinder and contracting cylinder can drive the movement of mobile retaining mechanism, and then drive the movement of anchor chain, the final purpose for realizing promotion.
The technical solution adopted by the present invention is that: a kind of chain lifter, by 1, four scotch 2 of anchor chain, master cylinder 3, two
A rigid locking organization cylinder 4, anchor chain slot 5, bottom frame 6, mobile upper cover plate 7, mobile lower cover plate 8, pin shaft 9, screw 10, mobile lock
Tight mechanism 11 and fixing and locking mechanism 12 form, in which: main oil is equipped between mobile retaining mechanism 11 and fixing and locking mechanism 12
Cylinder 3,3 one end of master cylinder are connected and fixed retaining mechanism 12, and the other end connects mobile retaining mechanism 11, and fixing and locking mechanism 12 is fixed
In on bottom frame 6；
Mobile retaining mechanism 11 is made of two scotch, 2, rigid locking organization cylinders 4, the rigid locking organization cylinder 4
Both ends be separately connected two scotch 2, two scotch 2 are located on mobile upper cover plate 7 and mobile lower cover plate 8, mobile
Upper cover plate 7 and mobile lower cover plate 8 are connected by screw 10, and two scotch 2 are fixed on bottom plate 6 by corresponding pin shaft 9 respectively
On, the scotch 2 can respectively be rotated around itself pin shaft 9；
Fixing and locking mechanism 12 is made of another two scotch 2, another rigid locking organization cylinder 4, the rigid locking mechanism
The both ends of oil cylinder 4 are separately connected two scotch 2, and two scotch 2 are fixed on bottom plate 6 by corresponding pin shaft 9 respectively, institute
Stating scotch 2 can respectively rotate around itself pin shaft 9；
The anchor chain slot 5 sequentially passes through mobile retaining mechanism 11 and fixing and locking mechanism 12, and the anchor chain 1, which is placed on, to be pre-designed
In good anchor chain slot 5, the both ends of the anchor chain 1 are each passed through two scotch 2 and fixed locking machine of mobile retaining mechanism 11
The another two scotch 2 of structure 12；
In the case where two rigid locking organization cylinders 4 drive, realize mobile retaining mechanism 11 and fixing and locking mechanism 12 opening and
Closure；When another rigid locking organization cylinder 4 stretches cylinder, two scotch 2 adjacent thereto are located remotely from each other, mobile locking machine
Structure 11 is opened, and when another 4 contracting cylinder of rigid locking organization cylinder, two scotch 2 adjacent thereto are close to each other, mobile lock
Tight mechanism 11 is closed.
In the present invention, the master cylinder 3 uses hydraulic cylinder.
In the present invention, described two rigid locking organization cylinders 4 are all made of hydraulic cylinder.
In the present invention, the shape of the scotch 2 should be such that it is stuck between adjacent equidirectional chain link just, work as locking
When mechanism is closed, scotch 2 and anchor chain 1 can be relatively moved in a small range, realize load transfer using the relative movement.
The basic principle of chain lifter of the present invention is:
1, anchor chain is promoted.Fixing and locking mechanism 12 is opened, and mobile retaining mechanism 11 is closed, and master cylinder 3 stretches cylinder, is locked due to fixed
Mechanism is fixed on bottom frame 6, so, mobile retaining mechanism 11 is stretched cylinder direction along master cylinder 3 with anchor chain 1 and is moved.
2, load transfer.Fixing and locking mechanism 12 is closed, and mobile retaining mechanism 11 is opened, and load is from mobile retaining mechanism 11
It is transferred on fixing and locking mechanism 12.
3, mobile retaining mechanism is kept in the center.Master cylinder 3 starts contracting cylinder, until mobile retaining mechanism 11 returns to initial bit
It sets, due to the limit of fixing and locking mechanism 12, anchor chain 1 is static.
4, load shifts again.Mobile retaining mechanism 11 is closed, and fixing and locking mechanism 12 is opened, and load is from fixed locking machine
Structure 12 is transferred in mobile retaining mechanism 11.
5, anchor chain is promoted again.Master cylinder 3 stretches cylinder again, and the process before repeating is realized and promotes purpose.
The beneficial effects of the present invention are:
1, stability is good.The present invention is made under the driving of master cylinder by the intersection of mobile retaining mechanism and fixing and locking mechanism
With the two alternately opens closure, realizes that the intermittent of chain is promoted.Hydraulic cylinder can provide stable power, mobile locking machine
Structure and fixing and locking mechanism ensure that chain is not fallen off under the action of rigid locking organization cylinder, and being promoted has stability.
2, easy to control.The present invention has mainly used master cylinder and two rigid locking organization cylinders, it is only necessary to control oil
Cylinder stretches cylinder, contracting cylinder, so that it may and then control the opening, closure and mobile locking of fixing and locking mechanism and mobile retaining mechanism
The movement of mechanism, it is final to realize the purpose promoted.
3, applicability is wide.Anchor chain uses the volume for making the lifter lifting object, weight, form etc. not to will receive too
Big limitation, can be used multiple groups lifter while being promoted, to meet the promotion of large cargo.Hydraulic cylinder use so that we
The lifter can be used in various complicated.For example, the raising of a wreck of large vessel, construction place large size material
Promotion and carrying.
4, at low cost, structure is simple.Present invention accuracy of manufacture requirement other than hydraulic cylinder is less high, and important component
Only anchor chain, mobile retaining mechanism, fixing and locking mechanism etc., structure is simple, and manufacture is easy, easy to assembly, is suitble to high-volume raw
It produces and uses.
Detailed description of the invention
Fig. 1 is chain lifter top view；
Fig. 2 is the A-A cross-sectional view of chain lifter；
Fig. 3 is 1 structural schematic diagram of anchor chain；
Fig. 4 ~ 17 are chain lifter working-flow figures.
Figure label: 1- anchor chain；2- scotch；3- master cylinder；4- rigid locking organization cylinder；5- anchor chain slot；6- bottom frame；
7- moves upper cover plate；8- moves lower cover plate；9- pin shaft；10- screw；11- mobile retaining mechanism；12- fixing and locking mechanism.
Anchor chain 1 model anchor chain diameter 78mm, chain pitch 604mm；(anchor chain can select different size according to using)；
3 stroke 1400mm of master cylinder；(master cylinder stroke, can be according to single lift distance selection different trips)；
Single lift distance is 1208mm；(single lift distance is to promote effective distance, and oil cylinder stroke subtracts retaining mechanism and stretches
Contracting distance).
Specific embodiment
The present invention is further illustrated below by embodiment combination attached drawing.
Embodiment 1；Chain lifter shown in Fig. 4 ~ 17 is by 3, two 1, four scotch 2 of anchor chain, master cylinder rigid lockings
Organization cylinder 4, anchor chain slot 5, bottom frame 6, mobile upper cover plate 7, mobile lower cover plate 8, pin shaft 9, screw 10,11 and of mobile retaining mechanism
Fixing and locking mechanism 12 forms.
Wherein, anchor chain 1 is placed in pre-designed anchor chain slot 5；Four scotch 2 are respectively rotated around itself pin shaft 9,
It is connected between any two by corresponding rigid locking organization cylinder 4, in the case where a rigid locking organization cylinder 4 drives, realizes and move
The opening and closing of dynamic retaining mechanism 11 and fixing and locking mechanism 12, the shape of four scotch 2 should make it be stuck in phase just
Between adjacent equidirectional chain link, when retaining mechanism closure, two scotch 2 and anchor chain 1 can be relatively moved in a small range,
Load transfer is realized using the relative movement；Master cylinder 3 is the major impetus source of chain lifter, which uses liquid
Compressing cylinder, not only safety and stability, but also larger power can be provided；Two rigid locking organization cylinders 4 are also hydraulic cylinder, both ends difference
Corresponding two scotch 2 are connected, cylinder is stretched and contracting cylinder rotates scotch 2 around respective pin shaft 9, when stretching cylinder, two only
Motion block 2 is located remotely from each other, and retaining mechanism is opened, and when contracting cylinder, two scotch 2 are close to each other, and retaining mechanism is closed；Mobile upper cover plate
7 occupy 2 the upper side and lower side of scotch with mobile lower cover plate 8 respectively, are connected with each other by screw 10, with two scotch 2, one
Rigid locking organization cylinder 4 forms mobile retaining mechanism 11 together；The another two stop that fixing and locking mechanism 12 is connected by pin shaft 9
There are also bottom frames 6 to form for block 2 and another rigid locking organization cylinder 4.When carrying out operation, bottom frame 6 is fixed on job platform,
Mobile retaining mechanism 11 and fixing and locking mechanism 12 are first opened, by anchor chain 1 across respective two scotch of the two, then will
Fixing and locking mechanism 12 is closed, and prevents anchor chain 1 from falling off.Cylinder and contracting are stretched by control master cylinder 3 and rigid locking organization cylinder 4
Cylinder realizes the shifting of the opening, closure and mobile retaining mechanism 11 and anchor chain 1 of mobile retaining mechanism 11 and fixing and locking mechanism
It is dynamic, it is final to realize the purpose promoted.
Specific work process is as follows: (by taking stroke 1400mm as an example)
1, anchor chain 1 is worn.As shown in figure 4, the enough anchor chains 1 of intensity are placed in the anchor chain slot 5 reserved, 1 model of anchor chain are as follows:
Anchor chain diameter 78mm, chain pitch 604mm.
2, mobile retaining mechanism 11 is closed.As shown in figure 5, the rigid locking organization cylinder 4 of control mobile retaining mechanism 11
Contracting cylinder, so that the scotch 2 of mobile retaining mechanism 11 is close to each other, mobile retaining mechanism 11 is closed, and anchor chain 1 cannot pass through
Mobile retaining mechanism 11.But due to the reasons in structure of anchor chain 1 itself, mobile retaining mechanism 11 and anchor chain 1 can be in a small ranges
Relative movement.
3, master cylinder 3 stretches cylinder, and the scotch 2 of mobile retaining mechanism 11 is contacted with anchor chain 1.As shown in fig. 6, master cylinder 3 is stretched
Cylinder 7mm, until scotch 2 is contacted with anchor chain 1.
4, master cylinder 3 stretches cylinder again, and mobile retaining mechanism 11 carries.As shown in fig. 7, master cylinder 3 stretches cylinder 10mm again, protect
The scotch 2 of card mobile retaining mechanism 11 tightly blocks anchor chain 1, bears the total weight for promoting object and anchor chain 1, is next
Formal promoted is ready.
5, master cylinder 3 stretches cylinder with load.As shown in figure 8, master cylinder 3 stretches cylinder 1208mm with load, this is the chain lifter
Weight can integrally be promoted 1208mm by true lift portion, single.
6, fixing and locking mechanism 12 is closed and locked.As shown in figure 9, the rigid locking mechanism oil of control fixing and locking mechanism 12
4 contracting cylinder of cylinder, so that the scotch 2 of fixing and locking mechanism 12 is close to each other, fixing and locking mechanism 12 is closed, and anchor chain 1 cannot be smooth
Pass through fixing and locking mechanism 12.At this point, fixing and locking mechanism 12 and mobile retaining mechanism 11 are in closed state, it is closed herein
Fixing and locking mechanism 12 is to be transferred on fixing and locking mechanism 12 to prepare from mobile retaining mechanism 11 for following load.
7, the scotch 2 of 3 contracting cylinder of master cylinder, fixing and locking mechanism 12 is contacted with anchor chain 1.As shown in Figure 10, due to anchor chain 1
Self structure reason, fixing and locking mechanism 12 and anchor chain 1 can be relatively moved in a small range.3 contracting cylinder 10mm of master cylinder, so that
The scotch 2 of fixing and locking mechanism 12 is in contact with anchor chain 1.
8, contracting cylinder 10mm, fixing and locking mechanism 12 carry master cylinder 3 again.As shown in figure 11, the cylinder of contracting again of master cylinder 3 makes
Mobile retaining mechanism 11 is obtained close to fixing and locking mechanism 12, is limited in anchor chain slot 5 since anchor chain 1 itself is fixed retaining mechanism 12
In, therefore, the chain link of anchor chain 1 no longer mutually fastens between fixing and locking mechanism 12 and mobile retaining mechanism 11, and load is from movement
Retaining mechanism 11 is transferred on fixing and locking mechanism 12.
9, mobile retaining mechanism 11 is opened.As shown in figure 12, the rigid locking organization cylinder 4 of mobile retaining mechanism 11 is controlled
Cylinder is stretched, so that the scotch 2 of mobile retaining mechanism 11 is located remotely from each other, mobile retaining mechanism 11 is opened, and anchor chain 1 can be locked from mobile
It is passed through in tight mechanism 11.The backhaul of mobile retaining mechanism 11 caused by 3 contracting cylinder of master cylinder will not influence the shape of anchor chain 1 later
State.
10, master cylinder 3 is full reduced.As shown in figure 13, load at this time is all born by fixing and locking mechanism 12, mobile locking
Mechanism 11 can be moved freely along chain, and therefore, we select master cylinder full reduced, increase the stroke for next stretching cylinder as far as possible.
11, mobile retaining mechanism 11 is closed and locked.As shown in figure 14, the rigid locking mechanism of mobile retaining mechanism 11 is controlled
4 contracting cylinder of oil cylinder, so that the scotch 2 of mobile retaining mechanism 11 is close to each other, mobile retaining mechanism 11 is closed, and anchor chain 1 cannot be suitable
Benefit passes through mobile retaining mechanism 11.But due to the reasons in structure of anchor chain 1 itself, mobile retaining mechanism 11 and anchor chain 1 can be small
Relative movement, does not ensure that the scotch 2 of mobile retaining mechanism 11 is contacted with anchor chain 1 in range.
12, master cylinder 3 stretches cylinder, and the scotch 2 of mobile retaining mechanism 11 is contacted with anchor chain 1.As shown in figure 15, master cylinder is stretched
Cylinder 7mm, until that can guarantee that the scotch 2 of mobile retaining mechanism 11 is contacted with anchor chain 1.
13, master cylinder 3 stretches cylinder 10mm again, and mobile retaining mechanism 11 carries.As shown in figure 16.As shown in figure 11, master cylinder 3
Cylinder of stretching again make mobile retaining mechanism 11 far from fixing and locking mechanism 12, due between itself chain link of anchor chain 1 there are gap,
It is not an entirety, so that the scotch 2 of fixing and locking mechanism 12 is no longer contacted with anchor chain 1, load is from fixed locking machine
Structure 11 is transferred on mobile retaining mechanism 12.
14, fixing and locking mechanism 12 is opened.As shown in figure 17, the rigid locking organization cylinder of fixing and locking mechanism 12 is controlled
4 stretch cylinder, so that the scotch 2 of fixing and locking mechanism 12 is located remotely from each other, fixing and locking mechanism 12 is opened, and anchor chain 1 can be successfully
Pass through from fixing and locking mechanism 12.Next step 5 is repeated.
The above is workflow of the invention, and to those of ordinary skill in the art, the present invention can have
Various modifications and variations.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on, should all
It is included within protection scope of the present invention.
Claims (4)
1. a kind of chain lifter, by anchor chain (1), four scotch (2), master cylinder (3), two rigid locking organization cylinders
(4), anchor chain slot (5), bottom frame (6), mobile upper cover plate (7), mobile lower cover plate (8), pin shaft (9), screw (10), mobile locking machine
Structure (11) and fixing and locking mechanism (12) composition, it is characterised in that: mobile retaining mechanism (11) and fixing and locking mechanism (12) it
Between be equipped with master cylinder (3), master cylinder (3) one end is connected and fixed retaining mechanism (12), and the other end connects mobile retaining mechanism (11),
Fixing and locking mechanism (12) is fixed on bottom frame (6)；
Mobile retaining mechanism (11) is made of two scotch (2), a rigid locking organization cylinder (4), the rigid locking machine
The both ends of structure oil cylinder (4) are separately connected two scotch (2), and two scotch (2) are located at mobile upper cover plate (7) and movement
On lower cover plate (8), mobile upper cover plate (7) and mobile lower cover plate (8) are connected by screw (10), and two scotch (2) are led to respectively
It crosses corresponding pin shaft (9) to be fixed on bottom plate (6), the scotch (2) can respectively rotate around itself pin shaft (9)；
Fixing and locking mechanism (12) is made of another two scotch (2), another rigid locking organization cylinder (4), this is rigidly locked
The both ends for determining organization cylinder (4) are separately connected two scotch (2), and two scotch (2) are solid by corresponding pin shaft (9) respectively
Due on bottom plate (6), the scotch (2) can respectively rotate around itself pin shaft (9)；
The anchor chain slot (5) sequentially passes through mobile retaining mechanism (11) and fixing and locking mechanism (12), and the anchor chain (1) is placed on
In pre-designed anchor chain slot (5), the both ends of the anchor chain (1) are each passed through two scotch of mobile retaining mechanism (11)
(2) and the another two scotch (2) of fixing and locking mechanism (12)；
In the case where two rigid locking organization cylinders (4) drive, mobile retaining mechanism (11) and fixing and locking mechanism (12) are realized
Opening and closing；When another rigid locking organization cylinder (4) stretches cylinder, two scotch (2) adjacent thereto are located remotely from each other,
Mobile retaining mechanism (11) is opened, when another rigid locking organization cylinder (4) contracting cylinder, two scotch adjacent thereto
(2) close to each other, mobile retaining mechanism (11) closure.
2. chain lifter according to claim 1, it is characterised in that the master cylinder (3) uses hydraulic cylinder.
3. chain lifter according to claim 1, it is characterised in that the rigid locking organization cylinder (4) uses liquid
Compressing cylinder.
4. chain lifter according to claim 1, it is characterised in that the shape of the scotch (2) should make it just
It is stuck in well between adjacent equidirectional chain link, when retaining mechanism closure, scotch (2) and anchor chain (1) can be in a small ranges
Relative movement realizes load transfer using the relative movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638400.8A CN110342438A (en) | 2019-07-16 | 2019-07-16 | A kind of chain lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638400.8A CN110342438A (en) | 2019-07-16 | 2019-07-16 | A kind of chain lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110342438A true CN110342438A (en) | 2019-10-18 |
Family
ID=68176445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910638400.8A Pending CN110342438A (en) | 2019-07-16 | 2019-07-16 | A kind of chain lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110342438A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111332407A (en) * | 2020-04-22 | 2020-06-26 | 大连海事大学 | Anchor chain lifter and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3845935A (en) * | 1973-04-11 | 1974-11-05 | Hydranautics | Chain jack with mechanically and hydraulically operated pawls |
| CN201983975U (en) * | 2010-11-25 | 2011-09-21 | 天水红山试验机有限公司 | Hydraulic pressure clamping device for anchor chain tensile test |
| US20130043447A1 (en) * | 2011-08-16 | 2013-02-21 | Joseph E. Farrell, III | Chain stopper for chain puller |
| CN106081013A (en) * | 2016-08-05 | 2016-11-09 | 柳州欧维姆机械股份有限公司 | A kind of chain type tractive device for raising of a wreck and for realizing the drag construction method of raising of a wreck |
| CN206318653U (en) * | 2016-12-07 | 2017-07-11 | 上海打捞局芜湖潜水装备厂 | Chain elevator |
-
2019
- 2019-07-16 CN CN201910638400.8A patent/CN110342438A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3845935A (en) * | 1973-04-11 | 1974-11-05 | Hydranautics | Chain jack with mechanically and hydraulically operated pawls |
| CN201983975U (en) * | 2010-11-25 | 2011-09-21 | 天水红山试验机有限公司 | Hydraulic pressure clamping device for anchor chain tensile test |
| US20130043447A1 (en) * | 2011-08-16 | 2013-02-21 | Joseph E. Farrell, III | Chain stopper for chain puller |
| CN106081013A (en) * | 2016-08-05 | 2016-11-09 | 柳州欧维姆机械股份有限公司 | A kind of chain type tractive device for raising of a wreck and for realizing the drag construction method of raising of a wreck |
| CN206318653U (en) * | 2016-12-07 | 2017-07-11 | 上海打捞局芜湖潜水装备厂 | Chain elevator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111332407A (en) * | 2020-04-22 | 2020-06-26 | 大连海事大学 | Anchor chain lifter and using method thereof |
| CN111332407B (en) * | 2020-04-22 | 2024-02-02 | 大连海事大学 | Anchor chain lifter and using method thereof |
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Application publication date: 20191018 |