CN108328500A - Pulley guide fence device and single-beam crane - Google Patents
Pulley guide fence device and single-beam crane Download PDFInfo
- Publication number
- CN108328500A CN108328500A CN201810347262.3A CN201810347262A CN108328500A CN 108328500 A CN108328500 A CN 108328500A CN 201810347262 A CN201810347262 A CN 201810347262A CN 108328500 A CN108328500 A CN 108328500A
- Authority
- CN
- China
- Prior art keywords
- pulley
- protective cover
- steel wire
- wire rope
- guide fence
- 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.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- 208000035397 Ring chromosome 7 syndrome Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
-
- 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
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
Abstract
This application discloses a kind of pulley guide fence device and single-beam crane, including the internal shaft with pulley be connected to a fixed pulley case, cover on pulley case overthe openings protective cover and position-limited rack for limiting steel wire rope position；Pulley case is equipped with the opening for steel wire rope disengaging；Protective cover be upper and lower ends be open tubular structure, so that steel wire rope passes through；Position-limited rack is fixed on the inside of protective cover, formed between both ends and protective cover for steel wire rope by gap or its own be equipped with for steel wire rope by gap, the size in gap is less than the opening size of pulley case.It is arranged such, pocket torch door is controlled into cable by protective cover and pulley and steel wire rope are completely isolated, and steel wire rope is limited in smaller scope of activities by position-limited rack, to avoid pocket torch door from controlling cable clip into safety accident caused by the hinged place of pulley and steel wire rope.
Description
Technical field
The present invention relates to technical field of crane machinery more particularly to a kind of pulley guide fence device and single-beam liftings
Machine.
Background technology
With the development of economic market, enterprise has used a large amount of mechanized equipment in production run, while machinery is set
Standby safe handling is also at the key factor closely bound up with the performance of enterprises, environment, personal safety etc..Crane is widely used in
The difference occasion lift cargo such as factory, warehouse, stock ground, single-beam crane is compact with appearance and size, building head room is low, certainly
The advantages that heavy and light, small wheel load, but single-beam crane in the prior art also suffers from certain drawbacks in structure, such as：Turbine
Structure does not have protective device, and the steel wire rope of pulley case is larger by locating opening, causes steel wire rope, electricity when suspension hook freely swings
When cable is wound, pocket torch door controls cable clip into pulley and steel wire rope when being easy to cause ground flashlight door operation single-beam crane equipment
Hinge joint at, cause the generation of safety accident.
Based on the above issues, a kind of pulley protective device of suitable modern industry requirement is now needed.
Invention content
To overcome the problems, such as at least to a certain extent present in the relevant technologies, the application provides a kind of pulley guide fence
Device and single-beam crane.
The first aspect of the application provides a kind of pulley guide fence device, including the internal shaft stationary phase with pulley
The pulley case of connection, the pulley case are equipped with the opening for steel wire rope disengaging；It covers in the opening of the pulley case
Side protective cover, the protective cover be upper and lower ends be open tubular structure, so that steel wire rope passes through；For limiting steel wire rope
The position-limited rack of position is fixed on the inside of the protective cover；It is formed for steel wire rope between the position-limited rack both ends and the protective cover
By gap or the position-limited rack be equipped with for steel wire rope by gap；The size in the gap is less than the pulley shield
The opening size of shell.
Preferably, which further includes the company for the protective cover to be connect with the pulley case
Holder is connect, the connecting bracket is fixedly connected on the protective cover inside lower end.
Preferably, the connecting bracket includes that two crossbeams being mutually parallel and a both ends are respectively perpendicular and are connected to two
The longeron of the crossbeam, the crossbeam are fixedly connected with the side wall of the protective cover, the longeron and pulley case top
It is fixedly connected.
Preferably, the water conservancy diversion height of the protective cover is 4/5ths of diameter of pulley.
Preferably, the protective cover lower end and the pulley case are equipped with the end surface of opening and corresponding contact.
Preferably, the position-limited rack is two spacing rings, and two spacing rings are separately fixed at the protective cover upper end
The both ends of opening.
Preferably, the position-limited rack is the cover board that both ends are equipped with arc gap, and the cover board is detachably arranged in described
At the upper end opening of protective cover.
Preferably, the protective cover includes the sheet metal of two U-typeds, and the open end of two sheet metals is corresponding
Connection is cylindrical in shape.
Preferably, it is bolted to connection between the connecting bracket and the pulley case；The connecting bracket with
It is bolted to connection between the protective cover, bolt quantity is two, and is distributed in pulley center place vertical line both sides.
The second aspect of the application provides a kind of single-beam crane, include pulley as described in any of the above item be oriented to it is anti-
Protection unit.
Technical solution provided by the present application includes following advantageous effect：
In pulley guide fence device provided by the present application, the protective cover that is fixed on pulley case, which is internally provided with, to be used for
The position-limited rack of steel wire rope scope of activities is limited, the scope of activities of steel wire rope is limited to the open-mouth ruler less than pulley case by position-limited rack
In very little range.Pocket torch door is controlled into cable by protective cover and pulley and steel wire rope are completely isolated, by position-limited rack by steel wire
Rope is limited in smaller scope of activities, to avoid pocket torch door from controlling cable clip into caused by the hinged place of pulley and steel wire rope
Safety accident.
Present invention also provides a kind of single-beam crane with above-mentioned pulley guide fence device, above-mentioned pulley is oriented to anti-
Protection unit is avoided that pocket torch door controls cable clip into safety accident caused by the hinged place of pulley and steel wire rope, to single-beam lifting
Machine also has higher safety index.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
The application can be limited.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of front view of pulley guide fence device shown according to some exemplary embodiments；
Fig. 2 is a kind of vertical view one of pulley guide fence device shown according to some exemplary embodiments；
Fig. 3 is a kind of vertical view two of pulley guide fence device shown according to some exemplary embodiments；
Fig. 4 is the structural schematic diagram according to the cover board shown in some exemplary embodiments.
Reference numeral：Pulley case -1；Protective cover -2；Position-limited rack -3；Connecting bracket -4；Crossbeam -5；Longeron -6；Limit
Ring -7；Cover board -8；Water conservancy diversion height-h.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, technical scheme of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Present embodiment is designed to provide a kind of pulley guide fence device, by the way that pocket torch door is controlled cable
Inlet and outlet size that is completely isolated with pulley and steel wire rope and reducing steel wire rope avoids pocket torch door from controlling cable clip into pulley and steel
Safety accident caused by the hinged place of cord.It includes that above-mentioned pulley is oriented to that it is a kind of, which to also reside in offer, for the purpose of present embodiment
The single-beam crane of protective device.
Hereinafter, being illustrated to embodiment with reference to attached drawing.In addition, embodiments illustrated below is not to recorded in claim
Invention content rise any restriction effect.In addition, the full content of the composition represented by following example is not limited to as right
It is required that necessary to the solution of recorded invention.
Referring to Fig.1~3, the concrete structure schematic diagram of some exemplary embodiment middle pulley guide fence devices is shown.
Pulley guide fence device provided in this embodiment includes internal and the shaft of pulley is connected to a fixed pulley case 1 covers on
The protective cover 2 of the overthe openings of pulley case 1 and position-limited rack 3 for limiting steel wire rope position；Pulley case 1 is equipped with and is used for
The opening of steel wire rope disengaging；Protective cover 2 is the tubular structure that upper and lower ends are open, and steel wire rope passes through protection by tubular structure
Cover 2；Position-limited rack 3 is fixed on 2 inside steel wire rope of protective cover by place, is formed for steel wire rope between 3 both ends of position-limited rack and protective cover 2
By gap or position-limited rack 3 be equipped with for steel wire rope by gap, the size in gap is less than the open-mouth ruler of pulley case 1
Very little, i.e., the scope of activities for the steel wire rope that position-limited rack 3 limits is less than the opening size of pulley case 1.
Freely swing caused steel wire rope, cable wrapping phenomena so set, suspension hook can be effectively reduced, and passes through limit
Steel wire rope is limited in smaller scope of activities by position frame 3, and protective cover 2 keeps pocket torch door control cable and steel wire rope and pulley complete
Isolation, to effectively avoid pocket torch door from controlling cable clip into safety accident caused by the hinged place of pulley and steel wire rope.
In the present solution, the pulley guide fence device further includes for protective cover 2 and pulley case 1 to link together
Connecting bracket 4, connecting bracket 4 are fixedly connected on 2 inside lower end of protective cover.Connecting bracket 4 includes two crossbeams 5 being mutually parallel
It is respectively perpendicular the longeron 6 for being connected to two crossbeams 5 with a both ends, is in " H " type of symmetrical configuration, the side of crossbeam 5 and protective cover 2
Wall is fixedly connected, and longeron 6 is fixedly connected with 1 top of pulley case.Pulley case 1 and protective cover 2 are connected to one by connecting bracket 4
It rises, increases the guiding height to steel wire rope.
Bolt may be used in implementation, between connecting bracket 4 and protective cover 2 to be fixedly connected, it is easy to disassemble, make convenient for the later stage
With detection and repair in the process.It should be noted that for being fixedly connected with holder 4 and although the bolt quantity of protective cover 2 does not have
There is strict demand, but two are advisable, and is distributed in pulley center place vertical line both sides, in the case where bolt loosens,
Connection between protective cover 2 and connecting bracket 4 is still than stronger.
In implementation, it may be used and be welded and fixed or bolt is fixedly connected between connecting bracket 4 and pulley case 1.Pass through weldering
It connects mode protective cover 2 is fixed on pulley case 1, is connected firmly and fixed form is simple, do not increase other parts.Pass through spiral shell
Bolt is fixedly connected with mode, easy to disassemble, convenient for the detection and repair during later stage use.
Under normal circumstances, the water conservancy diversion height h of protective cover 2 is changeable, but using the simulation and calculating of numerical simulation, can be with
Determine water conservancy diversion height h is most preferably 4/5ths of diameter of pulley.When solving steel wire rope movement, select suitable water conservancy diversion high
Degree h, steel wire rope direction energy reasonable direction race, while keeping pulley operation more smooth, and alleviator quality, material is saved,
It is cost-effective.
In preferred embodiment, 2 lower end of protective cover and pulley case 1 be equipped with opening end surface it is corresponding contact, so set
It sets, the contact point between protective cover 2 and pulley case 1 can be increased, be connected firmly, it is both beautiful and practical.
In the present solution, position-limited rack 3 is two spacing rings 7 that diameter is slightly larger than wirerope diameter, two spacing rings 7 are solid respectively
The both ends steel wire rope of 2 upper end opening of protective cover is scheduled on by place, with reference to Fig. 3.Such scenario-frame is simple, and electricity is controlled in pocket torch door
When cable and steel wire rope are wound, it can effectively avoid pocket torch door cable and press from both sides hinged place into steel wire rope and pulley.
In implementation, position-limited rack 3 can also select both ends be equipped with for steel wire rope by arc gap cover board 8, cover board 8 can
Dismounting mounted on the upper end opening of protective cover 2 at, reference Fig. 2 and Fig. 4.The position-limited rack 3 of such form is solving the above problems
While, it is also prevented from dust or other sundries enters the smoothness that pulley case 1 influences pulley operation.
It should be noted that the notch of 8 both ends of cover board setting is arc-shaped, when steel wire rope acts on notch for a long time, also
The stress at arc gap can be reduced to avoid stress concentration.
Protective cover 2 can be integrated form, simple in structure；Also it can be made of two parts, that is, include the gold of two U-typeds
Belong to piece, the U-typed open end of two sheet metals is corresponded to be fixed together by welding or bolt, is cylindrical in shape.It is solid with bolt
Determine connecting bracket 4 two sheet metals of protective cover 2 can be fixed with while protective cover 2；Two U-typed sheet metals are using special
It is shaped with mould punching, it can be ensured that machining accuracy and good appearance.
Present embodiment also provides a kind of single-beam crane, including above-mentioned pulley guide fence device, due to above-mentioned
Pulley guide fence device is avoided that pocket torch door controls cable clip into safety accident caused by the hinged place of pulley and steel wire rope, from
And single-beam crane also has higher safety index.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to same or analogous content in other embodiment.
In the description of this specification, the description of reference term " some embodiments " means to combine the tool of embodiment description
Body characteristics, structure, material or feature are contained at least one embodiment or example of the application.In the present specification, right
The schematic representation of above-mentioned term may not refer to the same embodiment or example.Moreover, description specific features, structure,
Material or feature can be combined in any suitable manner in any one or more of the embodiments or examples.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of pulley guide fence device, which is characterized in that including：
The pulley case (1) that the internal shaft with pulley is connected to a fixed, the pulley case (1) is equipped with to be passed in and out for steel wire rope
Opening；
The protective cover (2) of the overthe openings of the pulley case (1) is covered on, the protective cover (2) is what upper and lower ends were open
Tubular structure passes through for steel wire rope；
Position-limited rack (3) for limiting steel wire rope position is fixed on the inside of the protective cover (2)；Position-limited rack (3) both ends with
Between the protective cover (2) formed for steel wire rope by gap or the position-limited rack (3) be equipped with for steel wire rope between
Gap；The size in the gap is less than the opening size of the pulley case (1).
2. pulley guide fence device according to claim 1, which is characterized in that further include for by the protective cover
(2) connecting bracket (4) being connect with the pulley case (1), the connecting bracket (4) are fixedly connected on the protective cover (2)
Inside lower end.
3. pulley guide fence device according to claim 2, which is characterized in that the connecting bracket (4) includes two
The crossbeam (5) and a both ends that are mutually parallel are respectively perpendicular the longeron (6) for being connected to two crossbeams (5), the crossbeam (5)
It is fixedly connected with the side wall of the protective cover (2), is fixedly connected at the top of the longeron (6) and the pulley case (1).
4. pulley guide fence device according to claim 1, which is characterized in that the water conservancy diversion height of the protective cover (2)
It is 4/5ths of diameter of pulley.
5. pulley guide fence device according to claim 1, which is characterized in that protective cover (2) lower end with it is described
The end surface that pulley case (1) is equipped with opening corresponds to contact.
6. pulley guide fence device according to claim 1, which is characterized in that the position-limited rack (3) is two limits
Ring (7), two spacing rings (7) are separately fixed at the both ends of the protective cover (2) upper end opening.
7. pulley guide fence device according to claim 1, which is characterized in that the position-limited rack (3) is equipped with for both ends
The cover board (8) of arc gap, the cover board (8) are detachably arranged at the upper end opening of the protective cover (2).
8. pulley guide fence device according to claim 1, which is characterized in that the protective cover (2) includes two " U "
The corresponding connection in open end of the sheet metal of type, two sheet metals is cylindrical in shape.
9. pulley guide fence device according to claim 2, which is characterized in that the connecting bracket (4) and the cunning
It is bolted to connection between wheel case (1)；It is bolted between the connecting bracket (4) and the protective cover (2)
Connection, bolt quantity are two, and are distributed in pulley center place vertical line both sides.
10. a kind of single-beam crane, which is characterized in that filled including such as claim 1~9 any one of them pulley guide fence
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347262.3A CN108328500A (en) | 2018-04-17 | 2018-04-17 | Pulley guide fence device and single-beam crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347262.3A CN108328500A (en) | 2018-04-17 | 2018-04-17 | Pulley guide fence device and single-beam crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108328500A true CN108328500A (en) | 2018-07-27 |
Family
ID=62933396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810347262.3A Pending CN108328500A (en) | 2018-04-17 | 2018-04-17 | Pulley guide fence device and single-beam crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108328500A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR540664A (en) * | 1921-09-06 | 1922-07-15 | Pulley | |
| JPH10109893A (en) * | 1996-10-04 | 1998-04-28 | Mitsubishi Materials Corp | Pulley |
| CN2905736Y (en) * | 2006-05-24 | 2007-05-30 | 上海梅山钢铁股份有限公司 | Hanger steel cable pulley case capable of reducing wear |
| CN201703989U (en) * | 2010-06-09 | 2011-01-12 | 河南平高东芝高压开关有限公司 | Crane handle wire anti-clamping protective device |
| DE102009058569A1 (en) * | 2009-12-17 | 2011-06-22 | Audi Ag, 85057 | Roller assembly has roller body, which is arranged on axis between two bearing components, where axis is rotatably mounted in bearing components |
| JP2011168386A (en) * | 2010-02-22 | 2011-09-01 | Chugoku Electric Power Co Inc:The | Rolling-in preventive device for pulley and pulley |
| CN204434095U (en) * | 2014-12-19 | 2015-07-01 | 重庆起重机厂有限责任公司 | Ladle carne dead sheave group |
| CN106744440A (en) * | 2016-11-30 | 2017-05-31 | 常州市双强机械制造有限公司 | Tackle-block device |
| CN206395759U (en) * | 2017-01-09 | 2017-08-11 | 河钢股份有限公司承德分公司 | One kind rotation clamp crane rope protector |
| CN208135786U (en) * | 2018-04-17 | 2018-11-23 | 孙玲 | Pulley guide fence device and single-beam crane |
-
2018
- 2018-04-17 CN CN201810347262.3A patent/CN108328500A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR540664A (en) * | 1921-09-06 | 1922-07-15 | Pulley | |
| JPH10109893A (en) * | 1996-10-04 | 1998-04-28 | Mitsubishi Materials Corp | Pulley |
| CN2905736Y (en) * | 2006-05-24 | 2007-05-30 | 上海梅山钢铁股份有限公司 | Hanger steel cable pulley case capable of reducing wear |
| DE102009058569A1 (en) * | 2009-12-17 | 2011-06-22 | Audi Ag, 85057 | Roller assembly has roller body, which is arranged on axis between two bearing components, where axis is rotatably mounted in bearing components |
| JP2011168386A (en) * | 2010-02-22 | 2011-09-01 | Chugoku Electric Power Co Inc:The | Rolling-in preventive device for pulley and pulley |
| CN201703989U (en) * | 2010-06-09 | 2011-01-12 | 河南平高东芝高压开关有限公司 | Crane handle wire anti-clamping protective device |
| CN204434095U (en) * | 2014-12-19 | 2015-07-01 | 重庆起重机厂有限责任公司 | Ladle carne dead sheave group |
| CN106744440A (en) * | 2016-11-30 | 2017-05-31 | 常州市双强机械制造有限公司 | Tackle-block device |
| CN206395759U (en) * | 2017-01-09 | 2017-08-11 | 河钢股份有限公司承德分公司 | One kind rotation clamp crane rope protector |
| CN208135786U (en) * | 2018-04-17 | 2018-11-23 | 孙玲 | Pulley guide fence device and single-beam crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206345591U (en) | A kind of building tower crane with safety hanging cradle | |
| CN105417403A (en) | Method for installing ultrahigh ultra-large type floating crane in dock | |
| CN208135786U (en) | Pulley guide fence device and single-beam crane | |
| CN108328500A (en) | Pulley guide fence device and single-beam crane | |
| CN103883156A (en) | Multidirectional yoke plate for tower assembling with derricks in mountainous area | |
| CN204281039U (en) | A kind of special hanger lifting box plate | |
| CN208166356U (en) | A kind of weldability hoisting point hoist | |
| CN206815182U (en) | A kind of suspension arrangement of bridge maintaining | |
| ES466075A1 (en) | Horizontal slewing crane | |
| CN207647451U (en) | A kind of water conservancy work climbing ladder being easily installed dismounting | |
| CN208925093U (en) | A kind of pork hoisting mechanism | |
| CN208716709U (en) | A kind of group of upright bar tower pole | |
| CN207566061U (en) | A kind of copper sheathing has enough to meet the need protective device | |
| CN202657825U (en) | Device for lifting guyed tower in integrally assembled mode | |
| CN206827933U (en) | The overhead explosion-proof crane of robot type cutting machine | |
| CN213230996U (en) | Gantry crane lifting steel wire rope replacing device | |
| CN206156638U (en) | Swing arm tower crane top ping lift prevents kinking device | |
| CN206188260U (en) | Hoist top ping lift prevents kinking device and hoist | |
| CN209200564U (en) | A kind of large pier cable bridge bracket | |
| CN201952095U (en) | Shackle-free connected hanging bar | |
| CN201128657Y (en) | Crane winding device for lifting wire cable | |
| CN214641179U (en) | Oxidation-resistant wear-resistant alloy surfacing welding wire | |
| CN216945786U (en) | Falling object prevention baffle plate for vertical shaft | |
| CN109665445A (en) | A kind of flare tower hoisting transportation technique | |
| CN219009779U (en) | Auxiliary device for tower arm amplitude-variable fixed pulley rope threading |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |