CN107986164A - A kind of steel wire rope overload protection arrangement - Google Patents
A kind of steel wire rope overload protection arrangement Download PDFInfo
- Publication number
- CN107986164A CN107986164A CN201710891581.6A CN201710891581A CN107986164A CN 107986164 A CN107986164 A CN 107986164A CN 201710891581 A CN201710891581 A CN 201710891581A CN 107986164 A CN107986164 A CN 107986164A
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- connecting rod
- support frame
- block
- bullet
- axis pin
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
- B66D1/58—Safety gear responsive to excess of load
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The present invention provides a kind of steel wire rope overload protection arrangement, effectively solve after weight is sling, the danger that weight easily falls；Its technical solution solved includes support frame, clamping device is equipped with support frame, fixture block is symmetrically arranged, fixture block includes arc block, and arc block periphery is connected with level board, and the lower section of level board is equipped with first connecting rod and the first axis pin, first connecting rod is sleeved on the first axis pin through sliding slot, baffle is equipped with the outside of first connecting rod, brute spring is connected between first connecting rod and baffle, limited step is equipped with support frame；Clamping device is arranged right below lifting unit；Card slot is offered on level board opposing end surface, bullet block is equipped between two level boards, the medial surface of each bullet block is arc surface, and two bullet blocks can be moved up and down and can sticked into card slot, same cam is connected on the outside of two bullet blocks, the rotation of cam can drive two bullet blocks to move up and down；Present inventive concept is ingenious, safe to use.
Description
Technical field
The present invention relates to lifting technical field, particularly a kind of steel wire rope overload protection arrangement.
Background technology
For crane during lifting, the thickness of steel wire rope is most important, has been directly related to hanging object and operating personnel
Safety, during crane loading, lifted by crane in the case of most be all by crane below suspension hook hook winding
The steel wire rope of weight is lifted by crane.
Since in specific works, the steel wire rope thickness specification in each workshop is very much, in lifting, most of operating personnel
All it is that steel wire rope is selected according to the weight rough estimate of weight, which results in inaccurate, weight may be sometimes estimated in lifting
When thing is overweight, when the weight of weight is more than the crane capacity of steel wire rope, at this time when using the lifting of this steel wire rope, it is easy to occur
Weight is in the operational process of high-altitude, wire cable rupture, the danger that weight falls.
Therefore design it is a kind of can be according to the weight of the bearing capacity automatic decision weight of steel wire rope, and it is automatic to overload
The suspender to come off is necessary.
The content of the invention
For the above situation, to overcome the defect of the prior art, the present invention provides a kind of steel wire rope overload protection arrangement,
Well realize when weight is overweight exceed steel wire rope bearing capacity when, suspender can depart from weight automatically, avoid weight
After slinging, danger that weight falls.
A kind of steel wire rope overload protection arrangement, its technical solution solved include support frame, and support frame lower end is equipped with
Bottom plate, support frame upper end are equipped with cover board, and support frame internal upper part is equipped with the clamping device being placed in below cover board, and clamping device is put
In the center of support frame left and right directions, clamping device is made of two fixture blocks that can be moved left and right, two fixture blocks or so
It is arranged symmetrically, each fixture block includes a semicircular arc block, and two semicircular inner headed faces of arc block are opposite, each arc
Block periphery is connected with about two horizontally disposed level boards, and the lower section of level board is equipped with the first connecting rod and solid of can swinging
To determine the first axis pin on the support frame, sliding slot is offered on first connecting rod, first connecting rod is sleeved on the first axis pin through sliding slot,
A baffle that can be moved left and right is equipped with the outside of each first connecting rod, barrier slides are installed in support frame, first connecting rod
It is connected with horizontal positioned brute spring between lower end and baffle, the distance of the upper end of the first axis pin and first connecting rod is less than first
The distance between axis pin and brute spring, the upper end of first connecting rod are hinged on level board, and moving left and right for level board can drive
The lower end of first connecting rod swings, and the limited step that baffle moves inward can be stopped by being equipped with support frame, first connecting rod to
Interior swing can tense baffle wedge at limited step by brute spring；
The clamping device is arranged right below anterior-posterior horizontal placement and the second axis pin moving up and down, is pasted on the inside of each baffle
Conjunction has one to be placed in the sliding block that on bottom plate and can be horizontally slipped, and two sliding blocks are symmetrically arranged, in brute spring and sliding block
The heart is in same level, and second connecting rod is hinged with the inside of each sliding block, and two second connecting rod other ends are hinged on same
On the second axis pin of root, the second connecting rod of the sliding block of left and right two and its respective side collectively forms a lifting unit, is opened up on bottom plate
There is the horizontal straight slot being placed in below second connecting rod, sliding block is located at the top of horizontal straight slot, and the width of sliding block is more than horizontal straight slot
Width, horizontal straight slot both ends are respectively equipped with the sliding block that sliding block can be made to drop and fall mouth；
Offer multiple card slots on two level board opposing end surfaces respectively, branch is placed in equipped with two between two level boards
Bullet block on support frame frame, two bullet blocks are arranged symmetrically on the central plane of upper and lower two level boards, the medial surface of each bullet block
For arc surface, two bullet blocks can be moved up and down and can sticked into card slot, and same cam, cam are connected on the outside of two bullet blocks
Rotation two bullet blocks can be driven to move up and down.
Present inventive concept is ingenious, realize well when weight is overweight exceed steel wire rope bearing capacity when, suspender can be automatic
Depart from weight, avoid after weight is sling, the danger that weight falls.
Brief description of the drawings
Fig. 1 is front view of the present invention.
Fig. 2 is top view of the present invention.
Fig. 3 is lifting unit of the present invention and baffle top plan view.
Fig. 4 is A direction views in Fig. 2 of the present invention.
Fig. 5 is 11 schematic perspective view of baffle of the present invention.
Fig. 6 is clamping device schematic perspective view of the present invention.
Fig. 7 is first connecting rod junction of the present invention partial enlarged view.
Fig. 8 is cam side view of the present invention.
Fig. 9 is partial enlarged view I in Fig. 1 of the present invention.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
From Fig. 1-9, the present invention includes support frame 1, and 1 lower end of support frame is equipped with bottom plate 2,1 upper end of support frame
Equipped with cover board 3,1 internal upper part of support frame is equipped with the clamping device for being placed in the lower section of cover board 3, and it is left that clamping device is placed in support frame 1
The center of right direction, clamping device are made of two fixture blocks that can be moved left and right 4, and two fixture blocks 4 are symmetrically arranged, often
A fixture block 4 includes a semicircular arc block 5, and two 5 semicircular inner headed faces of arc block are opposite, and each arc block 5 is cylindrical
Face is connected with about two horizontally disposed level boards 7, and the lower section of level board 7 is equipped with can swing first connecting rod 9 and fixation
The first axis pin in support frame 1, offers sliding slot 6 on first connecting rod 9, first connecting rod 9 is sleeved on the first axis pin through sliding slot 6
On, each outside of first connecting rod 9 is equipped with a baffle 11 that can be moved left and right, and baffle 11 is slidably mounted in support frame 1, the
Horizontal positioned brute spring 10, the upper end of the first axis pin and first connecting rod 9 are connected between the lower end of one connecting rod 9 and baffle 11
Distance be less than the distance between the first axis pin and brute spring 10, the upper end of first connecting rod 9 is hinged on level board 7, horizontal
Moving left and right for plate 7 can drive the lower end of first connecting rod 9 to swing, and being equipped with support frame 1 can stop that baffle 11 inwardly moves
Dynamic limited step 12, first connecting rod 9, which is inwardly swung, to be stuck in by the tension baffle 11 of brute spring 10 at limited step 12；
The anterior-posterior horizontal that is arranged right below of the clamping device is placed and the second axis pin 15 moving up and down, in each baffle 11
Side is fitted with one and is placed in the sliding block 13 that on bottom plate 2 and can be horizontally slipped, and two sliding blocks 13 are symmetrically arranged, brute spring 10
It is in the center of sliding block 13 in same level, the inner side of each sliding block 13 is hinged with second connecting rod 14, two second connecting rods
14 other ends are hinged on the second axis pin of same root 15, and the second connecting rod 14 of the sliding block 13 of left and right two and its respective side collectively forms
One lifting unit, the horizontal straight slot 16 for being placed in the lower section of second connecting rod 14 is offered on bottom plate 2, and sliding block 13 is located at horizontal straight slot
Top, the width of sliding block 13 are more than the width of horizontal straight slot 16, and horizontal 16 both ends of straight slot are respectively equipped with the cunning that sliding block can be made to drop
Block falls mouth 17；
Multiple card slots 31 are offered on two 7 opposing end surfaces of level board respectively, are put between two level boards 7 equipped with two
In the bullet block 18 in support frame 1, two bullet blocks 18 are arranged symmetrically on the central plane of upper and lower two level boards 7, each bullet
The medial surface of block 18 is arc surface, and two bullet blocks 18 can be moved up and down and can sticked into card slot 31, and the outside of two bullet blocks 18 connects
Same cam 32 is connected to, the rotation of cam 32 can drive two bullet blocks 18 to move up and down.
The wedge block 19 that can be horizontally slipped is equipped with left and right sides of 3 upper surface of cover board, two wedge blocks 19 are opposite
It is simultaneously inclined-plane, the opposite inclined-plane of two wedge blocks 19 forms the wedge-like opening 20 that outer openings are more than interior side opening, wedge shape
Opening 20 is placed in the rear side of clamping device, and first is connected between the end face opposite with inclined-plane of wedge block 19 and support frame 1
Spring 22.
The level board 7 passes through the guide plate 21 being fixed in support frame 1, and the lateral ends of two level boards are placed in
The outside of guide plate 21, second spring 29 is connected between the cylindrical and guide plate 21 of arc block 5, and guide plate 21 is equipped with and is placed in
Installation groove between two level boards 7, bullet block 18 are installed in installation groove, connect between bullet block 18 and the bottom of installation groove
The 4th spring 8 is connected to, bullet block 18 is connected to cam 32 through strut 33.
The lifting unit has two groups before and after lower portion on 1 anteroposterior direction center symmetric setting of frame, support
Vertical groove 23 is offered on the front and rear wall of frame 1 respectively, the second axis pin 15 is installed in vertical groove 23 and can be vertical recessed
Moved up and down in groove 23, the rear and front end of the second axis pin 15 is placed in the outside of support frame, and bottom plate 2 is equipped with and is placed in the second pin
Longitudinal straight slot 24 immediately below axis 15, sliding block 13 falls from sliding block can make the second axis pin 15 decline from longitudinal straight slot 24 when mouth 17 is fallen
Under, on each lifting unit back-moving spring 25, the lower section of second connecting rod 14 are connected between two corresponding second connecting rods 14
Suspender equipped with suspension weight.
The front and rear sides of the upper and lower ends of the baffle 11 be respectively arranged with protrusion 26, support frame 1 be internally provided with
Raised 26 corresponding tracks, protrusion 26 clamp in orbit, and baffle 11 can be moved by the protrusion 26 of both sides along inside and outside track.
The front and rear wall center of the support frame 1 is provided with support plate 27, and support plate 27 is placed in clamping device and lifting
Between unit, support plate 27 is equipped with retainer ring 28, and it is vertical that the center of retainer ring 28 and the center of clamping device are in same
On straight line.
Above and below first axis pin and sliding slot the 3rd spring 30 is connected between two side.
For the present invention when specifically used, the initial position of baffle 11 is at limited step 12, two arcs of pressing device at this time
The distance between shape block 5 minimum, is not present tightening force, in former long status at this time on brute spring 10；When needing hoisting heavy
When, weight is fixed on the suspender of the lower section of second connecting rod 14 first, after the completion of fixed, the steel wire rope of selection is passed through into cover board 3
The rear side of wedge-like opening 20 from the support frame 1 of top is put into clamping device, and the lower end of steel wire rope is fixed on clamping dress
In the retainer ring 28 for putting lower section, at this time by the cylindrical of two on fixture block 4 opposite 5 clamping steel wire ropes of arc block, due to lifting
The steel wire rope of use is the specification of standard, and the thickness of steel wire rope all has certain specification, at this time the card slot 31 on level board 7
Position be configured according to the diameter of the different size of steel wire rope, when wire line shoe is into clamping device, fixture block 4 can laterally
It is mobile, and then drive level board 7 to move laterally, the inner arc face of bullet block 18 can be passed through when level board 7 moves laterally
Bullet block 18 is compressed, bullet block 18 can be sticked into card slot 31 corresponding with steel wire rope thickness, and bullet block 18 can limit after sticking into card slot 31
The movement of fabrication block inwardly, the influence for avoiding the swing of steel wire rope from producing.
The first connecting rod 9 that lower end can be driven hinged that moves laterally of fixture block 4 is swung at the same time, at this time wirerope diameter
Change after the swing of first connecting rod 9, since the lower end of first connecting rod 9 is connected with brute spring 10, brute spring 10
The other end is connected on baffle 11, since the initial position of baffle 11 is at limited step 12, the change of wirerope diameter at this time
After first connecting rod 9, the smaller change of wirerope diameter can be amplified by the swing of 9 lower end of first connecting rod,
And it is converted into the power that furthers that brute spring 10 tenses baffle 11.
When hoisting heavy, since weight is suspended on the lower section of second connecting rod 14, when crane slowly lifts by crane, at this time by
In affected by gravity, the second axis pin 15 can produce the trend moved downward under gravity, the second axis pin 15 to
Lower athletic meeting drives the sliding block 13 of both sides to move laterally at the same time by second connecting rod 14, during lifting, the second axis pin 15
On be subject to downward gravity increasing, second connecting rod 14 can promote the sliding block 13 of both sides to move and held out against at it laterally at this time
The baffle 11 in outside, when the weight of weight is smaller, sliding block 13 open-top can not be tensed by brute spring 10 at this time baffle 11, this
When lifting unit will not produce movement, can determine that selected steel wire rope can bear the weight of wanted hoisting heavy at this time,
Weight is hung height at this time to be transported.
When the weight of lifting is overweight, more than selected steel wire rope in the hoisting weight within safety coefficient, at this time
The meeting of sliding block 13 of both sides while the baffle 11 of its open-top respective side, sliding block 13 slides in and out, since baffle 11 is open, sliding block 13
Athletic meeting laterally makes sliding block 13 move to sliding block to fall in mouth 17, and sliding block 13 can fall in mouth 17 to drop from sliding block at this time, at the same time
Hinged 14 and second axis pin 15 of second connecting rod can be fallen by horizontal straight slot 16 and vertical straight slot respectively therewith, be said at this time
The weight of bright hoisting heavy exceed steel wire rope bearing capacity, at this time weight can not hang supporting surface, it is necessary to more change steel rope into
Row lifting.
Due to being connected with back-moving spring 25 between corresponding two connecting rods, back-moving spring 25 is played in not hoisting heavy
Effect of two second connecting rods 14 to contract is prevented when not working, under lifting unit Gravitative Loads, sliding block 13 is open-top
Baffle 11 and drop, the pulling force of back-moving spring 25 can be ignored relative to the weight for playing hanging object.
When needing to remove steel wire rope, only need to rotate cam 32 at this time, make between two bullet blocks 18 of the same side away from
From shortening, and then two bullet blocks 18 are made to depart from card slot 31, at this time after steel wire rope takes out, fixture block 4 can be in the work of second spring 29
Reset condition is returned back under.
Mutual cooperation of the invention by devising clamping device and lifting unit, realizing can be according to steel wire rope
Diameter is determined to the maximum weight of hoisting heavy, when the preponderance of the weight of lifting, the lifting unit of the suspender from
Meeting Automatic-falling in face of turning up the soil, prevents that steel wire rope can not bear weight and be broken and cause weight when weight is lifted to high aerial
Thing drops, and causes danger, and realizes the security during lifting.
The present invention realizes the use of the steel wire rope of different size by devising fixture block 4, card slot 31 and bullet block 18,
, at this time can be to fixture block 4 inwardly when bullet block 18 is sticked into card slot 31 since steel wire rope easily produces swing in use
Mobile carry out it is spacing, play the fixed effect to fixture block position, while two symmetrical bullets are respectively arranged with up and down per side
Block, more smoothly can be defined the position of fixture block.
The structure that the present invention is hinged on the second axis pin of same root 15 by devising second connecting rod 14, realizes second
When weight is hung on connecting rod 14, the sliding block 13 of both sides can be realized well while is acted, while ensure that whole lifting unit
Athletic performance, the lifting made is more steady, and the sliding block 13 of both sides at the same time act can preferably realize wirerope diameter to
The conversion of bearing capacity.
Present inventive concept is ingenious, realize well when weight is overweight exceed steel wire rope bearing capacity when, suspender can be automatic
Depart from weight, avoid after weight is sling, the danger that weight falls.
Claims (7)
1. a kind of steel wire rope overload protection arrangement, it is characterised in that including support frame（1）, support frame（1）Lower end is equipped with bottom
Plate（2）, support frame（1）Upper end is equipped with cover board（3）, support frame（1）Internal upper part is equipped with and is placed in cover board（3）The clamping dress of lower section
Put, clamping device is placed in support frame（1）The center of left and right directions, clamping device is by two fixture blocks that can be moved left and right
（4）Form, two fixture blocks（4）It is symmetrically arranged, each fixture block（4）Including a semicircular arc block（5）, two arcs
Block（5）Semicircular inner headed face is opposite, each arc block（5）Periphery is connected with about two horizontally disposed level boards（7）,
Level board（7）Lower section be equipped with and can swing first connecting rod（9）Be fixed on support frame（1）On the first axis pin, first
Connecting rod（9）On offer sliding slot（6）, first connecting rod（9）Through sliding slot（6）It is sleeved on the first axis pin, each first connecting rod（9）Outside
Side is equipped with a baffle that can be moved left and right（11）, baffle（11）It is slidably mounted on support frame（1）It is interior, first connecting rod（9）Under
End and baffle（11）Between be connected with horizontal positioned brute spring（10）, the first axis pin and first connecting rod（9）Upper end away from
From less than the first axis pin and brute spring（10）The distance between, first connecting rod（9）Upper end is hinged on level board（7）On, it is horizontal
Plate（7）Move left and right and can drive first connecting rod（9）Lower end swings, support frame（1）Interior be equipped with can stop baffle（11）
The limited step moved inward（12）, first connecting rod（9）Brute spring can be passed through by inwardly swinging（10）Tense baffle（11）It is stuck in
Limited step（12）Place；
The clamping device is arranged right below anterior-posterior horizontal placement and the second axis pin moving up and down（15）, each baffle
（11）Inner side is fitted with one and is placed in bottom plate（2）Sliding block that is upper and can horizontally slipping（13）, two sliding blocks（13）Symmetrical cloth
Put, brute spring（10）With sliding block（13）Center be in same level, each sliding block（13）Inner side is hinged with the second company
Bar（14）, two second connecting rods（14）The other end is hinged on the second axis pin of same root（15）On, the sliding block of left and right two（13）And its
The second connecting rod of respective side（14）Collectively form a lifting unit, bottom plate（2）On offer and be placed in second connecting rod（14）Lower section
Horizontal straight slot（16）, sliding block（13）Positioned at the top of horizontal straight slot, sliding block（13）Width be more than horizontal straight slot（16）Width
Degree, horizontal straight slot（16）Both ends are respectively equipped with the sliding block that sliding block can be made to drop and fall mouth（17）；
Two level boards（7）Multiple card slots are offered on opposing end surface respectively（31）, two level boards（7）Between be equipped with
Two are placed in support frame（1）On bullet block（18）, two bullet blocks（18）On upper and lower two level boards（7）Central plane pair
Claim arrangement, each bullet block（18）Medial surface be arc surface, two bullet blocks（18）It can move up and down and card slot can be sticked into（31）It is interior,
Two bullet blocks（18）Outside be connected to same cam（32）, cam（32）Rotation can drive two bullet blocks（18）On move down
It is dynamic.
A kind of 2. steel wire rope overload protection arrangement according to claim 1, it is characterised in that the cover board（3）Upper end
The wedge block that can be horizontally slipped is equipped with left and right sides of face（19）, two wedge blocks（19）Opposite one side is inclined-plane, two wedges
Shape block（19）Opposite inclined-plane forms the wedge-like opening that outer openings are more than interior side opening（20）, wedge-like opening（20）It is placed in clamping
The rear side of device, wedge block（19）The end face opposite with inclined-plane and support frame（1）Between be connected with the first spring（22）.
A kind of 3. steel wire rope overload protection arrangement according to claim 1, it is characterised in that the level board（7）Wear
Cross and be fixed on support frame（1）Interior guide plate（21）, the lateral ends of two level boards are placed in guide plate（21）Outside, arc
Shape block（5）Cylindrical and guide plate（21）Between be connected with second spring（29）, guide plate（21）It is equipped with and is placed in two levels
Plate（7）Between installation groove, bullet block（18）In installation groove, bullet block（18）It is connected between the bottom of installation groove
There is the 4th spring（8）, bullet block（18）Cam is connected to through strut 33（32）.
4. a kind of steel wire rope overload protection arrangement according to claim 1, it is characterised in that the lifting unit is in frame
It is front and rear inside frame to have two groups on 1 anteroposterior direction center symmetric setting of frame, support frame（1）Front and rear wall on offer respectively
Vertical groove（23）, the second axis pin（15）Installed in vertical groove（23）It is interior and can be in vertical groove（23）Inside move up and down, the
Two axis pins（15）Rear and front end be placed in the outside of support frame, bottom plate（2）It is equipped with and is placed in the second axis pin（15）Underface
Longitudinal straight slot（24）, sliding block（13）Fall mouth from sliding block（17）It can make the second axis pin when falling（15）From longitudinal straight slot（24）Decline
Under, two corresponding second connecting rods on each lifting unit（14）Between be connected with back-moving spring（25）, second connecting rod（14）
Lower section be equipped with suspension weight suspender.
A kind of 5. steel wire rope overload protection arrangement according to claim 1, it is characterised in that the baffle（11）It is upper
The front and rear sides at lower both ends are respectively arranged with protrusion（26）, support frame（1）It is internally provided with and protrusion（26）Corresponding track,
It is raised（26）Clamp in orbit, baffle（11）The protrusion of both sides can be passed through（26）Moved inside and outside along track.
A kind of 6. steel wire rope overload protection arrangement according to claim 1, it is characterised in that the support frame（1）
Front and rear wall center support plate is installed（27）, support plate（27）It is placed between clamping device and lifting unit, support plate（27）
It is equipped with retainer ring（28）, retainer ring（28）Center and the center of clamping device be in same vertical straight line.
7. a kind of steel wire rope overload protection arrangement according to claim 1, it is characterised in that first axis pin and cunning
Above and below groove the 3rd spring is connected between two side（30）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710891581.6A CN107986164B (en) | 2017-09-27 | 2017-09-27 | A kind of wirerope overload protection arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710891581.6A CN107986164B (en) | 2017-09-27 | 2017-09-27 | A kind of wirerope overload protection arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN107986164A true CN107986164A (en) | 2018-05-04 |
| CN107986164B CN107986164B (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710891581.6A Active CN107986164B (en) | 2017-09-27 | 2017-09-27 | A kind of wirerope overload protection arrangement |
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Cited By (5)
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| CN108679089A (en) * | 2018-05-29 | 2018-10-19 | 佛山鑫达智汇科技有限公司 | A kind of new-energy automobile hub bearing |
| CN109205448A (en) * | 2018-10-18 | 2019-01-15 | 太原科技大学 | A kind of multi link heavy duty lock rope device |
| CN109973605A (en) * | 2019-04-11 | 2019-07-05 | 北京航空航天大学 | A kind of mechanical pulling force overload protection arrangement |
| CN113443574A (en) * | 2021-05-20 | 2021-09-28 | 刘根田 | Locking device of hoisting equipment |
| CN109205448B (en) * | 2018-10-18 | 2024-04-26 | 太原科技大学 | Multi-connecting-rod heavy-load rope locking device |
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| CN108679089B (en) * | 2018-05-29 | 2020-04-21 | 杭州佳语节能科技有限公司 | New energy automobile wheel hub bearing |
| CN109205448A (en) * | 2018-10-18 | 2019-01-15 | 太原科技大学 | A kind of multi link heavy duty lock rope device |
| CN109205448B (en) * | 2018-10-18 | 2024-04-26 | 太原科技大学 | Multi-connecting-rod heavy-load rope locking device |
| CN109973605A (en) * | 2019-04-11 | 2019-07-05 | 北京航空航天大学 | A kind of mechanical pulling force overload protection arrangement |
| CN113443574A (en) * | 2021-05-20 | 2021-09-28 | 刘根田 | Locking device of hoisting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107986164B (en) | 2018-11-23 |
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