CN104528515A - Lifting hook structure of tower crane - Google Patents
Lifting hook structure of tower crane Download PDFInfo
- Publication number
- CN104528515A CN104528515A CN201410839272.0A CN201410839272A CN104528515A CN 104528515 A CN104528515 A CN 104528515A CN 201410839272 A CN201410839272 A CN 201410839272A CN 104528515 A CN104528515 A CN 104528515A
- Authority
- CN
- China
- Prior art keywords
- multiplying power
- bearing pin
- pin
- power bearing
- cotter
- 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
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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
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a lifting hook structure of a tower crane. The lifting hook structure comprises an upper pulley block (1), a lower pulley block (2), a multiplying power pin shaft (3) and a shaft sleeve (5), wherein corresponding connection holes are formed in the upper pulley block (1) and the lower pulley block (2); the multiplying power pin shaft is provided with a split pin hole in a shaft shoulder; a corresponding slit pin hole is formed in the shaft sleeve; the shaft sleeve is fixed on the outer side of the upper pulley block or the lower pulley block; the multiplying power pin shaft penetrates into the connection holes of the upper pulley block and the lower pulley block from one side of the shaft sleeve when being installed; and when the slit pin hole of the multiplying power pin shaft is concentric with the slit pin hole in the shaft sleeve, a slit pin (4) is inserted and fixed. According to the lifting hook structure of the tower crane disclosed by the invention, by a structural form of fixing movement of the pin shaft in two directions by virtue of the slit pin, transformation of multiplying power can be achieved by an operator on only one side of the lifting hook; the lifting hook structure is simple in structural form, convenient to produce and process, and convenient to install and dismantle.
Description
Technical field
The present invention relates to a kind of tower crane, specifically a kind of tower machine Suspension hook structure.
Background technology
Existing tower crane often adopts to be extractd multiplying power bearing pin and to hoist multiplying power to realize conversion on the hanging basket of loading trolley, suspension hook divides top sheave group and downslide wheels, multiplying power pinned connection is used in centre, when pulling out multiplying power bearing pin and top sheave group be fixed on loading trolley, top sheave group becomes fixed pulley, the lower suspension hook of work has two steel ropes, now suspension hook is 2 multiplying powers, when top sheave group and downslide wheels are with multiplying power pinned connection, whole suspension hook having four steel rope work, is four multiplying powers.In medium-and-large-sized tower machine, the size of suspension hook can be very large, and the distance stood between people on loading trolley hanging basket and multiplying power bearing pin can be far, is difficult to enough spaces and easily removes multiplying power bearing pin.
Usually two kinds of tower machine Suspension hook structure are had in prior art, one as shown in Figure 1, multiplying power bearing pin is in order to the convenient disassembly employing side band shaft shoulder, the mode that side is fixed with spring cotter, when upper and lower assembly pulley 1,2 is installed, must be squeezed into by bearing pin 3 in A side, then be penetrated in B side by spring cotter 4, installation personnel all must operate in the both sides of suspension hook.
As shown in Figure 2, bearing pin adopts the mode of both sides band cotter-pin hold to another kind of structure, and bearing pin 3 can be got to opposite side from the either side of A side or B side, but A side and B side must penetrate spring cotter 4 simultaneously, installation personnel all must operate in the both sides of suspension hook.
Above-mentionedly no matter adopt which kind of mode, operator must carry out operating in the both sides of axle just completing mounting or dismounting, and this requires that the distance between operator and suspension hook is enough near, has sufficient space to carry out the mounting or dismounting of bearing pin.Therefore prior art has following shortcoming:
1, install, dismantle inconvenience.Must again at opposite side construction opening pin after bearing pin is accomplished fluently in side.When the width of upper and lower assembly pulley is very large, people possibly cannot get at the opposite side of suspension hook on loading trolley, and at this moment multiplying power bearing pin just cannot be installed or dismantle, although or can install and there is certain potential safety hazard.
2, cannot prevent the rotation of axle, owing to not having the fixing of circumference to axle, therefore multiplying power bearing pin can freely rotate.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of tower machine Suspension hook structure, people is only operated in suspension hook side and just can easily install and remove multiplying power bearing pin, realize the change of tower machine multiplying power.
To achieve these goals, a kind of tower machine of the present invention Suspension hook structure, comprise top sheave group, downslide wheels and multiplying power bearing pin, described top sheave group and described downslide wheels are provided with corresponding connecting bore; Also comprise an axle sleeve, described multiplying power bearing pin is provided with cotter-pin hold on the shaft shoulder; Described axle sleeve is provided with corresponding cotter-pin hold, and axle sleeve is fixed on outside top sheave group or downslide wheels; When installing multiplying power bearing pin, multiplying power bearing pin penetrates the connecting bore of upper and lower assembly pulley from axle sleeve side, and when multiplying power bearing pin cotter-pin hold is concentric with the cotter-pin hold on axle sleeve, spring cotter inserts fixing.
As a further improvement on the present invention, have outside described multiplying power bearing pin cotter-pin hold one for dismantling time pull the hole of multiplying power bearing pin, in this hole, an other column is as round steel, just multiplying power bearing pin can be extracted, easy to use.
As preferred version of the present invention, described axle sleeve and top sheave group or lower sheave bond pads.Adopt the mode of welding, connection structure is more firm.
Tower machine Suspension hook structure of the present invention, the version of spring cotter fixed pin shaft both direction movement, operator only need can realize the conversion of multiplying power in the side of suspension hook, it has the following advantages:
1, version is simple, and production and processing is convenient, installation, convenient disassembly.Such version is simply effective, easily realizes the conversion of suspension hook multiplying power.
2, because operator just can to realize the conversion of multiplying power in side, when suspension hook size is larger, just can avoid can not getting at opposite side because operator's arm falls short of and can not magnification transformable being realized.
3, structure is provided with axle sleeve permanent opening pin and prevents the axial and circumferential of axle from moving.
Accompanying drawing explanation
Fig. 1 is prior art one structural representation;
Fig. 2 is prior art and structural representation;
Fig. 3 is this practical structural representation;
Fig. 4 is multiplying power bearing pin schematic diagram of the present invention;
Fig. 5 is axle sleeve schematic diagram of the present invention;
In figure: 1, top sheave group, 2, downslide wheels, 3, multiplying power bearing pin, 4, spring cotter, 5, axle sleeve.
Detailed description of the invention
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 3 and Figure 5, tower machine Suspension hook structure of the present invention, comprises top sheave group 1, downslide wheels 2 and multiplying power bearing pin 3, and described top sheave group 1 and described downslide wheels 2 are provided with corresponding connecting bore; Also comprise an axle sleeve 5, described multiplying power bearing pin 3 is provided with cotter-pin hold on the shaft shoulder; Described axle sleeve 5 is provided with corresponding cotter-pin hold, axle sleeve 5 is fixed on outside top sheave group 1 or downslide wheels 2, what provide in accompanying drawing 3 here is be fixed in top sheave group 1, certainly if downslide wheels 2 are in the structure of outside lower sheave group 1 in interior survey, axle sleeve 5 just needs to be fixed on downslide wheels 2; When installing multiplying power bearing pin, multiplying power bearing pin 3 penetrates the connecting bore of upper and lower assembly pulley 1,2 from axle sleeve 5 side, and when multiplying power bearing pin 3 cotter-pin hold is concentric with the cotter-pin hold on axle sleeve 5, spring cotter 4 inserts fixing.Wherein, the connection mode of axle sleeve 5 and top sheave group 1 or downslide wheels 2, preferably welds here, and adopt the mode of welding, connection structure is more firm.
As shown in Figure 4, on said structure basis, also have outside multiplying power bearing pin 3 cotter-pin hold one for dismantling time pull the hole of multiplying power bearing pin 3.When by 4 magnification transformables to 2 multiplying power time, taken off by the spring cotter 4 of B side, multiplying power bearing pin 3 is an other round steel in the hole in outside, just multiplying power bearing pin can be extracted in B side with hand.
When installing multiplying power bearing pin 3, multiplying power bearing pin part 3 being squeezed into connecting bore from B side, when cotter-pin hold is concentric with the hole in sleeve member 5 inside multiplying power bearing pin part 3, the conversion of 2 multiplying powers to 4 multiplying powers can be completed in B side by also fixing for spring cotter insertion opening pin-and-hole.When by 4 magnification transformables to 2 multiplying power time, taken off by the spring cotter 4 of B side, multiplying power bearing pin 3 is an other round steel in the hole in outside, just multiplying power bearing pin can be extracted in B side with hand.
Claims (3)
1. a tower machine Suspension hook structure, comprises top sheave group (1), downslide wheels (2) and multiplying power bearing pin (3), and described top sheave group (1) and described downslide wheels (2) are provided with corresponding connecting bore; It is characterized in that, also comprise an axle sleeve (5), described multiplying power bearing pin (3) is provided with cotter-pin hold on the shaft shoulder; Described axle sleeve (5) is provided with corresponding cotter-pin hold, and axle sleeve (5) is fixed on top sheave group (1) or downslide wheels (2) outside; When installing multiplying power bearing pin, multiplying power bearing pin (3) penetrates the connecting bore of upper and lower assembly pulley (1,2) from axle sleeve (5) side, and when multiplying power bearing pin (3) cotter-pin hold is concentric with the cotter-pin hold on axle sleeve (5), spring cotter (4) inserts fixing.
2. tower machine Suspension hook structure according to claim 1, is characterized in that, have outside described multiplying power bearing pin (3) cotter-pin hold one for dismantling time pull multiplying power bearing pin (3) hole.
3. tower machine Suspension hook structure according to claim 1 and 2, is characterized in that, described axle sleeve (5) and top sheave group or lower sheave bond pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839272.0A CN104528515A (en) | 2014-12-30 | 2014-12-30 | Lifting hook structure of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839272.0A CN104528515A (en) | 2014-12-30 | 2014-12-30 | Lifting hook structure of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104528515A true CN104528515A (en) | 2015-04-22 |
Family
ID=52844214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410839272.0A Pending CN104528515A (en) | 2014-12-30 | 2014-12-30 | Lifting hook structure of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104528515A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500171A (en) * | 2017-08-24 | 2017-12-22 | 芜湖市长江起重设备制造有限公司 | A kind of overhead crane with hook assembly pulley |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU863894A1 (en) * | 1979-03-01 | 1981-09-15 | Предприятие П/Я Р-6324 | Device for connecting sleeve to shaft |
| WO2002044571A1 (en) * | 2000-11-30 | 2002-06-06 | Maria Pfeiffer | Truss comprised of members, which are detachably interconnected via member attachment fittings |
| CN201661569U (en) * | 2009-10-09 | 2010-12-01 | 广西玉柴重工有限公司 | Inserted pin used for hinge pin locking |
| CN202785262U (en) * | 2012-09-27 | 2013-03-13 | 山东丰汇设备技术有限公司 | All-rate conversion combined lifting device with plurality of interchangeable fetching devices |
| CN203903839U (en) * | 2014-04-28 | 2014-10-29 | 山东大汉建设机械有限公司 | Pulley block of tower type crane |
| CN203959659U (en) * | 2014-08-08 | 2014-11-26 | 中联重科股份有限公司 | A kind of hook assembly and there is its hoisting crane |
| CN204434078U (en) * | 2014-12-30 | 2015-07-01 | 徐州建机工程机械有限公司 | Tower machine Suspension hook structure |
-
2014
- 2014-12-30 CN CN201410839272.0A patent/CN104528515A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU863894A1 (en) * | 1979-03-01 | 1981-09-15 | Предприятие П/Я Р-6324 | Device for connecting sleeve to shaft |
| WO2002044571A1 (en) * | 2000-11-30 | 2002-06-06 | Maria Pfeiffer | Truss comprised of members, which are detachably interconnected via member attachment fittings |
| CN201661569U (en) * | 2009-10-09 | 2010-12-01 | 广西玉柴重工有限公司 | Inserted pin used for hinge pin locking |
| CN202785262U (en) * | 2012-09-27 | 2013-03-13 | 山东丰汇设备技术有限公司 | All-rate conversion combined lifting device with plurality of interchangeable fetching devices |
| CN203903839U (en) * | 2014-04-28 | 2014-10-29 | 山东大汉建设机械有限公司 | Pulley block of tower type crane |
| CN203959659U (en) * | 2014-08-08 | 2014-11-26 | 中联重科股份有限公司 | A kind of hook assembly and there is its hoisting crane |
| CN204434078U (en) * | 2014-12-30 | 2015-07-01 | 徐州建机工程机械有限公司 | Tower machine Suspension hook structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500171A (en) * | 2017-08-24 | 2017-12-22 | 芜湖市长江起重设备制造有限公司 | A kind of overhead crane with hook assembly pulley |
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|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |