CN106892344A - Improve the clamp method of bolt the moving stability - Google Patents
Improve the clamp method of bolt the moving stability Download PDFInfo
- Publication number
- CN106892344A CN106892344A CN201710264701.XA CN201710264701A CN106892344A CN 106892344 A CN106892344 A CN 106892344A CN 201710264701 A CN201710264701 A CN 201710264701A CN 106892344 A CN106892344 A CN 106892344A
- Authority
- CN
- China
- Prior art keywords
- suspension hook
- bolt
- hook
- pressing plate
- suspension
- 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.)
- Granted
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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
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
Abstract
The invention discloses the clamp method for improving bolt the moving stability, comprise the following steps:Step B：The lifting rope being connected with suspension ring is put down, hook assembly is moved down, suspension hook is then pulled open, until between bolt is located at suspension hook, it is then upper to move bolt and upper lifting hook assembly, until suspension hook embraces bolt, while pressing plate is pressed on bolt；Step D：Lifting rope is received, makes the liftoff 0.1m 2m of hook assembly, then move hook assembly to destination.During lifting, under gravity, the end of suspension hook is close to each other, until suspension hook clamps bolt；Connecting rod is also moved down under gravity simultaneously, until the sidewall contact of pressing plate and bolt, and hold-down bolt.The parts such as pressing plate are set; avoid lifting rope up-down vibration and drive suspension hook up-down vibration; and then there is the situation that the bolt being located on suspension hook is rocked, this not only protects the thread of bolt, it is thus also avoided that the situation that lifting rope and suspension hook are subjected to excessive stresses and reduce its service life occurs.
Description
Technical field
The present invention relates to a kind of method of the mobile bolt of stabilization, and in particular to improve the clamping side of bolt the moving stability
Method.
Background technology
The size of bolt differs, and from several millimeters to hundreds of thousands of millimeters, quality also has several grams to be changed into its nominal diameter
Tens up to a hundred kilograms.For example, the main flange bolt of pressurized-water reactor nuclear power plant reactor coolant pump is general all long, weight compares
Greatly, bolt overall length can reach 1m, and single bolt weighs about 80Kg certainly.
It is main at present using suspension hook lifting in the movement of large-sized bolt, during each handling, spiral shell need to be clamped with suspension hook
Bolt, then lifted by crane by lifting rope.In this moving method, suspension hook can make lifting rope fluctuate because the reason such as transmission produces vibration.
When lifting rope fluctuates, suspension hook can also fluctuate therewith, so make be located at suspension hook on bolt rock, due to bolt quality compared with
Greatly, thread when bolt is rocked not only to its surface causes to damage, and lifting rope and suspension hook are subjected to excessive stresses when being also easy to, and reduce
The service life of lifting rope and suspension hook.
The content of the invention
Present invention aim at provide improve bolt the moving stability clamp method, solve large-sized bolt lifting and
In movement, lifting rope up-down vibration simultaneously drives suspension hook up-down vibration, and then rocks the bolt being located on suspension hook, so that thread is caused
Damage, and reduce the problem of the service life of lifting rope and suspension hook.
The present invention is achieved through the following technical solutions：
The clamp method of bolt the moving stability is improved, is comprised the following steps:
Step A is installed：Several hook assemblies are arranged in order, and make to be located at the one end on suspension hook arm away from articulated jib
Suspension hook coaxial line, then activity runs through the articulated section on articulated jib away from suspension hook arm in hook assembly to connecting shaft successively, by suspension hook
Component is sequentially connected in series, and subsequently one end of connecting rod is located in mounting hole, and the other end of connecting rod is positive down, and with
Pressing plate is connected；
Step B is clamped：The lifting rope being connected with suspension ring is put down, hook assembly is moved down, suspension hook is then pulled open, makes hanging for L-shaped
The hinge axes of hook arm kink on suspension hook arm are rotated so that the end of suspension hook in any one hook assembly that
This is away from until between bolt is located at suspension hook, then above move bolt and upper lifting hook assembly, until any one hook assembly
In the end of suspension hook contact with each other and embrace bolt, while pressing plate is moved down, until away from a side pressure of connecting rod on pressing plate
On the wall of bolt side；
Step D is moved：Lifting rope is received, makes the liftoff 0.1m-2m of hook assembly, then move hook assembly to destination；
Step E blankings：Lifting rope is put, until suspension hook is contacted with the face for bearing bolt, then while pulling open suspension hook, makes L-shaped
Hinge axes of the suspension hook arm on kink are rotated, so that the end of the suspension hook in any one hook assembly is remote each other
From until bolt is deviate from between suspension hook.
During lifting, under gravity, the end of suspension hook is close to each other, until suspension hook clamps bolt；While connecting rod
Also move down under gravity, until the sidewall contact of pressing plate and bolt, and hold-down bolt.The parts such as pressing plate are set, and keep away
Lifting rope up-down vibration is exempted from and has driven suspension hook up-down vibration, and then the situation that the bolt being located on suspension hook is rocked occurred, this is not
Only protect the thread of bolt, it is thus also avoided that the situation that lifting rope and suspension hook are subjected to excessive stresses and reduce its service life occurs.
Further, the hinge axes of kink are on the suspension hook arm：The bending of suspension hook arm in one suspension hook arm component
The axis of the kink hinged place of suspension hook arm in portion and another suspension hook arm component.
Further, the two ends of the pressing plate can make pressure around an axis bending, and camber plate, and mobile link bar
The axis of plate benging crosses the center of circle of curved portions on suspension hook.Radius on pressing plate inner concave is consistent with the radius of the bolt of lifting, with
Increase pressing plate pushes contact surface during bolt, improves frictional force between its contact surface, and then further in reduction running
The situation for causing bolt to rock is rocked to occur.
Further, also including fixing axle, the articulated section of fixing axle activity suspension hook arm in the hook assembly successively,
Hook assembly is sequentially connected in series；
After one end in the connecting rod away from mounting hole extends radially through fixing axle along fixing axle, it is connected with pressing plate；
It is provided with damping spring between fixing axle and pressing plate, the damping spring is helical spring, and its diameter parallel
In the axis of connecting rod, when the axis of warped platen crosses the center of circle of curved portions on suspension hook, damping spring is in compressive state.
Be sequentially connected in series for suspension hook arm by fixing axle, when being easy to assemble the present invention, hanging between the adjacent hook assembly of raising
The axiality of hook, to increase the stability of suspension hook grip bolt, it is to avoid bolt is rocked.
Meanwhile, when the axis of warped platen crosses the center of circle of curved portions on suspension hook, pressing plate connects with the bolt on suspension hook
Touch, damping spring is in compressive state, pressing plate is not only subject to the weight from itself and connecting rod, also subject to arriving and damping
The thrust of spring, which increases frictional force between pressing plate and threaded bolt contacts face, and then further rocking in reduction running
The situation for causing bolt to rock occurs.
Further, the mounting hole is shoulder hole, and it leans on the aperture of proximal wall consistent with connection shank diameter；In connection
One end of mounting hole is provided with baffle plate, the cross sectional dimensions of the cross sectional dimensions more than connecting rod of the baffle plate on bar.
Spring on being provided between baffle plate and the bottom hole of mounting hole, the one end away from mounting hole bottom hole and peace on baffle plate
Lower spring is provided between dress hole hole wall, the upper spring and lower spring are helical spring, and its axis each parallel to installation
Hole；
In connecting rod is along axially bored line moving process is installed, the upper spring is constantly in compressive state, the lower spring
It is in extended state.
Upper spring in compressive state and the lower spring in extended state produce one and downward push away to connecting rod
Power, which increases frictional force between pressing plate and threaded bolt contacts face, and then further rocking in reduction running causes bolt
Situation about rocking occurs.
Connecting plate, the one of the connecting plate are provided between being located at the suspension hook of the same side in two neighboring hook assembly
End is connected with the suspension hook in a hook assembly, and the other end of connecting plate is connected with the suspension hook in another hook assembly, and even
The cross sectional dimensions of fishplate bar is consistent with the cross sectional dimensions of suspension hook.
The setting of connecting plate not only increases the contact surface between suspension hook and bolt, and it is same to pull connecting plate can be located at
The suspension hook of side is pulled open, and is opened suspension hook relative to one by one and is come for grip bolt, not only increases operating efficiency, is also increased
The stability of grip bolt is added.
Meanwhile, in vibration, it is above-mentioned in all of spring members can absorbability, it is to avoid connecting rod is rocked.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention improves the clamp method of bolt the moving stability, during lifting, under gravity, the end of suspension hook that
This is close to, until suspension hook clamps bolt；Connecting rod is also moved down under gravity simultaneously, until the side of pressing plate and bolt
Wall is contacted, and hold-down bolt.The parts such as pressing plate are set, it is to avoid lifting rope up-down vibration simultaneously drives suspension hook up-down vibration, and then make
The situation that bolt on suspension hook is rocked occurs, and this not only protects the thread of bolt, it is thus also avoided that lifting rope and suspension hook are subjected to
Excessive stresses and reduce its service life situation occur；
2nd, the present invention improves the clamp method of bolt the moving stability, the bolt of radius and lifting on pressing plate inner concave
Radius is consistent, to increase contact surface when pressing plate pushes bolt, improves frictional force between its contact surface, and then further reduce fortune
The situation that rocking during row causes bolt to rock occurs；
3rd, the present invention improves the clamp method of bolt the moving stability, and be sequentially connected in series for suspension hook arm, be easy to by fixing axle
During the assembling present invention, the axiality of the suspension hook between adjacent hook assembly is improved, to increase the stability of suspension hook grip bolt, kept away
Exempt from bolt to rock；Meanwhile, when the axis of warped platen crosses the center of circle of curved portions on suspension hook, pressing plate be located at suspension hook on bolt
Contact, damping spring is in compressive state, and pressing plate is not only subject to the weight from itself and connecting rod, also subject to arriving and subtract
The thrust of spring is shaken, frictional force between pressing plate and threaded bolt contacts face is which increased, and then further reduces the rolling in running
The dynamic situation for causing bolt to rock occurs；
4th, the present invention improves the clamp method of bolt the moving stability, upper spring in compressive state and in stretching shape
The lower spring of state produces a downward thrust to connecting rod, which increases frictional force between pressing plate and threaded bolt contacts face, enters
And the situation for causing bolt to rock of rocking further reduced in running occurs；
5th, the present invention improves the clamp method of bolt the moving stability, and the setting of connecting plate not only increases suspension hook and bolt
Between contact surface, and pull connecting plate can by be located at the same side suspension hook pull open, open suspension hook relative to one by one
Come for grip bolt, not only increase operating efficiency, also add the stability of grip bolt.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is front view of the invention；
Fig. 2 is sectional view of the invention.
Mark and corresponding parts title in accompanying drawing：
1- suspension ring, 2- articulated jibs, 3- suspension hook arms, 4- suspension hooks, 5- connecting shafts, 6- connecting rods, 7- mounting holes, 8- pressing plates, 9-
Connecting cylinder, 10- fixing axles, 11- damping springs, 12- baffle plates, the upper springs of 13-, 14- lower springs, 15- connecting plates.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
It is limitation of the invention.
Embodiment 1
As Figure 1-Figure 2, the present invention improves the clamp method of bolt the moving stability, comprises the following steps:
Step A is installed：Several hook assemblies are arranged in order, and make to be located at the one end on suspension hook arm 3 away from articulated jib 2
The coaxial line of suspension hook 4, then articulated section of the activity in the hook assembly on articulated jib 2 away from suspension hook arm 3 successively of connecting shaft 5,
Hook assembly is sequentially connected in series, subsequently one end of connecting rod 6 is located in mounting hole 7, the other end of connecting rod 6 is positive
Down, and with pressing plate 8 it is connected；
Step B is clamped：The lifting rope being connected with suspension ring 1 is put down, hook assembly is moved down, suspension hook 4 is then pulled open, makes L-shaped
The hinge axes of the kink on suspension hook arm 3 of suspension hook arm 3 are rotated, so that suspension hook 4 in any one hook assembly
End is away from each other, then upper to move bolt and upper lifting hook assembly between being located at suspension hook 4 in bolt, until any one
The end of the suspension hook 4 in hook assembly contacts with each other and embraces bolt, while pressing plate 8 is moved down, until away from connection on pressing plate 8
One end of bar 6 is pressed on the wall of bolt side；
Step D is moved：Lifting rope is received, makes the liftoff 0.1m-2m of hook assembly, then move hook assembly to destination；
Step E blankings：Lifting rope is put, until suspension hook 4 is contacted with the face for bearing bolt, then while pulling open suspension hook 4, makes L-shaped
Hinge axes of the suspension hook arm 3 on kink rotate so that the end of suspension hook 4 in any one hook assembly that
This is away from until bolt is deviate from between suspension hook 4.
During lifting, under gravity, the end of suspension hook 4 is close to each other, until suspension hook 4 clamps bolt；Connect simultaneously
Bar 6 is also moved down under gravity, until the sidewall contact of pressing plate 8 and bolt, and hold-down bolt.The grade part of pressing plate 8 sets
Put, it is to avoid lifting rope up-down vibration simultaneously drives suspension hook up-down vibration, and then the situation that the bolt being located on suspension hook is rocked occur.
The hinge axes of kink are on the suspension hook arm 3：In one suspension hook arm component the kink of suspension hook arm 3 with it is another
The axis of the kink hinged place of suspension hook arm 3 in individual suspension hook arm component.
Embodiment 2
The present invention is on the basis of embodiment 1, the present invention to be further illustrated.
As Figure 1-Figure 2, the present invention improves the clamp method of bolt the moving stability, the two ends of the pressing plate 8 around
One axis bending, and camber plate, and mobile link bar 6, the axis that can bend pressing plate 8 cross the center of circle of curved portions on suspension hook 4.
Radius on the inner concave of pressing plate 8 is consistent with the radius of the bolt of lifting, to increase contact surface when pressing plate 8 pushes bolt, raising
Frictional force between its contact surface, and then further the situation for causing bolt to rock of rocking in reduction running occurs.
Embodiment 3
The present invention is on the basis of embodiment 2, the present invention to be further illustrated.
As Figure 1-Figure 2, the present invention improves the clamp method of bolt the moving stability, described also including fixing axle 10
Activity, through the articulated section of suspension hook arm 3 in hook assembly, hook assembly is sequentially connected in series fixing axle 10 successively；
After one end in the connecting rod 6 away from mounting hole 7 extends radially through fixing axle 10 along fixing axle 10, connect with pressing plate 8
Connect；
It is provided with damping spring 11 between fixing axle 10 and pressing plate 8, the damping spring 11 is helical spring, and its axle
Parallel to the axis of connecting rod 6, when the axis of the bending of pressing plate 8 crosses the center of circle of curved portions on suspension hook 4, damping spring 11 is in line
Compressive state.
Be sequentially connected in series for suspension hook arm 3 by fixing axle 10, when being easy to assemble the present invention, between the adjacent hook assembly of raising
The axiality of suspension hook, to increase the stability of suspension hook grip bolt, it is to avoid bolt is rocked.
Meanwhile, when pressing plate 8 bending axis cross the center of circle of curved portions on suspension hook 4 when, pressing plate 8 be located at suspension hook 4 on spiral shell
Bolt is touched, and damping spring 11 is in compressive state, and pressing plate 8 is not only subject to the weight from itself and connecting rod 6, also subject to arriving
Carry out the thrust with damping spring 11, which increase frictional force between pressing plate 8 and threaded bolt contacts face, and then further reduction ran
The situation that rocking in journey causes bolt to rock occurs.
Embodiment 4
The present invention is on the basis of embodiment 1, the present invention to be further illustrated.
As Figure 1-Figure 2, the present invention improves the clamp method of bolt the moving stability, and the mounting hole 7 is shoulder hole,
And it leans on the aperture of proximal wall consistent with the diameter of connecting rod 6；One end positioned at mounting hole 7 in connecting rod 6 is provided with baffle plate 12,
Cross sectional dimensions of the cross sectional dimensions of the baffle plate 12 more than connecting rod 6.
Spring 13 is provided between the bottom hole of baffle plate 12 and mounting hole 7, away from the bottom hole of mounting hole 7 on baffle plate 12
Lower spring 14 is provided between one end and the hole wall of mounting hole 7, the upper spring 13 and lower spring 14 are helical spring, and its axle
Line is each parallel to mounting hole 7；
In connecting rod 6 along the axis moving process of mounting hole 7, the upper spring 13 is constantly in compressive state, it is described under
Spring 14 is in extended state.
Upper spring 13 in compressive state and the lower spring in extended state 14 produce one downwards to connecting rod 6
Thrust, which increase frictional force between pressing plate 8 and threaded bolt contacts face, and then further reduce rocking in running and cause
The situation that bolt is rocked occurs.
Embodiment 5
The present invention is on the basis of embodiment 1, the present invention to be further illustrated.
As Figure 1-Figure 2, the present invention improves the clamp method of bolt the moving stability, in two neighboring hook assembly
It is provided with connecting plate 15 between the suspension hook 4 of the same side, hanging in one end of the connecting plate 15 and a hook assembly
Hook 4 is connected, and the other end of connecting plate 15 is connected with the suspension hook 4 in another hook assembly, and connecting plate 15 cross sectional dimensions
Cross sectional dimensions with suspension hook 4 is consistent.
The setting of connecting plate 15 not only increases the contact surface between suspension hook and bolt, and pulling connecting plate 15 can be by position
Suspension hook 4 in the same side is pulled open, and suspension hook 4 is opened relative to one by one and is come for grip bolt, not only increases work effect
Rate, also add the stability of grip bolt.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include
Within protection scope of the present invention.
Claims (7)
1. the clamp method of bolt the moving stability is improved, it is characterised in that：Comprise the following steps:
Step A is installed：Several hook assemblies are arranged in order, and make to be located at the one end on suspension hook arm (3) away from articulated jib (2)
Suspension hook (4) coaxial line, then connecting shaft (5) successively activity in the hook assembly on articulated jib (2) away from suspension hook arm (3)
Articulated section, hook assembly is sequentially connected in series, and subsequently one end of connecting rod (6) is located in mounting hole (7), connecting rod
(6) the other end is positive down, and is connected with pressing plate (8)；
Step B is clamped：The lifting rope being connected with suspension ring (1) is put down, hook assembly is moved down, suspension hook (4) is then pulled open, makes L-shaped
The hinge axes of suspension hook arm (3) kink on suspension hook arm (3) are rotated, so that the suspension hook in any one hook assembly
(4) end is away from each other, then upper to move bolt and upper lifting hook assembly between being located at suspension hook (4) in bolt, until times
The end of the suspension hook (4) in one hook assembly of meaning contacts with each other and embraces bolt, while pressing plate (8) is moved down, until pressing plate
(8) one end on away from connecting rod (6) is pressed on the wall of bolt side；
Step D is moved：Lifting rope is received, makes the liftoff 0.1m-2m of hook assembly, then move hook assembly to destination；
Step E blankings：Lifting rope is put, until suspension hook (4) is contacted with the face for bearing bolt, then while pulling open suspension hook (4), makes L-shaped
Hinge axes of the suspension hook arm (3) on kink rotate so that the end of the suspension hook (4) in any one hook assembly
Hold away from each other, until bolt is deviate from between suspension hook (4).
2. it is according to claim 1 improve bolt the moving stability clamp method, it is characterised in that：The suspension hook arm
(3) hinge axes of kink are on：In one suspension hook arm component in the kink of suspension hook arm (3) and another suspension hook arm component
The axis of the kink hinged place of suspension hook arm (3).
3. it is according to claim 1 improve bolt the moving stability clamp method, it is characterised in that：The pressing plate (8)
Two ends around an axis bending, and camber plate, and mobile link bar (6), the axis that can bend pressing plate (8) crosses suspension hook
(4) center of circle of curved portions on.
4. it is according to claim 3 improve bolt the moving stability clamp method, it is characterised in that：Also include fixing axle
(10), the articulated section of the fixing axle (10) activity suspension hook arm (3) in the hook assembly successively, hook assembly is sequentially connected in series
Get up；
After one end on the connecting rod (6) away from mounting hole (7) extends radially through fixing axle (10) along fixing axle (10), with pressing plate
(8) connect；
Damping spring (11) is provided between fixing axle (10) and pressing plate (8), the damping spring (11) is helical spring, and
Its diameter parallel is in the axis of connecting rod (6), when the axis of pressing plate (8) bending crosses the center of circle of curved portions on suspension hook (4), damping
Spring (11) is in compressive state.
5. it is according to claim 1 improve bolt the moving stability clamp method, it is characterised in that：The mounting hole
(7) it is shoulder hole, and it leans on the aperture of proximal wall consistent with connecting rod (6) diameter；Mounting hole (7) is located in connecting rod (6)
One end be provided with baffle plate (12), the cross sectional dimensions of the cross sectional dimensions more than connecting rod (6) of the baffle plate (12).
6. it is according to claim 5 improve bolt the moving stability clamp method, it is characterised in that：Baffle plate (12) with
Spring (13) is provided between the bottom hole of mounting hole (7), the one end away from mounting hole (7) bottom hole and installation on baffle plate (12)
Lower spring (14) is provided between hole (7) hole wall, the upper spring (13) and lower spring (14) are helical spring, and its axis
Each parallel to mounting hole (7)；
In connecting rod (6) along mounting hole (7) axis moving process, the upper spring (13) is constantly in compressive state, described
Lower spring (14) is in extended state.
7. according to any one of claim 1-6 raising bolt the moving stability clamp method, it is characterised in that：
Connecting plate (15) is provided between the suspension hook (4) of the same side in two neighboring hook assembly, the connecting plate (15)
One end is connected with the suspension hook (4) in a hook assembly, the suspension hook in the other end and another hook assembly of connecting plate (15)
(4) connect, and the cross sectional dimensions of connecting plate (15) is consistent with the cross sectional dimensions of suspension hook (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264701.XA CN106892344B (en) | 2017-04-21 | 2017-04-21 | Improve the clamp method of bolt the moving stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264701.XA CN106892344B (en) | 2017-04-21 | 2017-04-21 | Improve the clamp method of bolt the moving stability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106892344A true CN106892344A (en) | 2017-06-27 |
| CN106892344B CN106892344B (en) | 2018-12-11 |
Family
ID=59196897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710264701.XA Active CN106892344B (en) | 2017-04-21 | 2017-04-21 | Improve the clamp method of bolt the moving stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106892344B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498684A (en) * | 2020-06-05 | 2020-08-07 | 芜湖芬特勘测服务有限公司 | Steel member hoisting clamp for pipe fitting |
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| CN2146468Y (en) * | 1992-12-22 | 1993-11-17 | 郭传玉 | Automatic loading and unloading sling |
| JPH07330278A (en) * | 1994-06-03 | 1995-12-19 | Mitsubishi Heavy Ind Ltd | Automatic hoisting accessory |
| JPH0925083A (en) * | 1995-07-11 | 1997-01-28 | Yoshikawa Kogyo Co Ltd | Hoisting accessory of roll, etc. |
| CN201785128U (en) * | 2010-07-20 | 2011-04-06 | 秦玉柱 | Dead-weight lock hoisting device |
| CN103183287A (en) * | 2011-12-29 | 2013-07-03 | 核动力运行研究所 | Hoisting clamp specially used for reactor coolant pump main flange bolt |
| CN203143925U (en) * | 2013-01-02 | 2013-08-21 | 河北钢铁股份有限公司承德分公司 | Improved electrode accident clamp of LF (Low Frequency) ladle refining furnace |
| CN203767854U (en) * | 2014-03-24 | 2014-08-13 | 中核华泰建设有限公司 | Pipeline hoisting frame |
| CN203855305U (en) * | 2014-03-19 | 2014-10-01 | 常州市嘉乐钢板网制造有限公司 | Jacking lifting appliance |
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2017
- 2017-04-21 CN CN201710264701.XA patent/CN106892344B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2146468Y (en) * | 1992-12-22 | 1993-11-17 | 郭传玉 | Automatic loading and unloading sling |
| JPH07330278A (en) * | 1994-06-03 | 1995-12-19 | Mitsubishi Heavy Ind Ltd | Automatic hoisting accessory |
| JPH0925083A (en) * | 1995-07-11 | 1997-01-28 | Yoshikawa Kogyo Co Ltd | Hoisting accessory of roll, etc. |
| CN201785128U (en) * | 2010-07-20 | 2011-04-06 | 秦玉柱 | Dead-weight lock hoisting device |
| CN103183287A (en) * | 2011-12-29 | 2013-07-03 | 核动力运行研究所 | Hoisting clamp specially used for reactor coolant pump main flange bolt |
| CN203143925U (en) * | 2013-01-02 | 2013-08-21 | 河北钢铁股份有限公司承德分公司 | Improved electrode accident clamp of LF (Low Frequency) ladle refining furnace |
| CN203855305U (en) * | 2014-03-19 | 2014-10-01 | 常州市嘉乐钢板网制造有限公司 | Jacking lifting appliance |
| CN203767854U (en) * | 2014-03-24 | 2014-08-13 | 中核华泰建设有限公司 | Pipeline hoisting frame |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498684A (en) * | 2020-06-05 | 2020-08-07 | 芜湖芬特勘测服务有限公司 | Steel member hoisting clamp for pipe fitting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106892344B (en) | 2018-12-11 |
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