CN101839324A - Jib-type crane pulley device - Google Patents
Jib-type crane pulley device Download PDFInfo
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- CN101839324A CN101839324A CN200910030369A CN200910030369A CN101839324A CN 101839324 A CN101839324 A CN 101839324A CN 200910030369 A CN200910030369 A CN 200910030369A CN 200910030369 A CN200910030369 A CN 200910030369A CN 101839324 A CN101839324 A CN 101839324A
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- pulley
- endosphere
- jib
- steel loop
- type crane
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Abstract
The invention discloses a jib-type crane pulley device which comprises a pulley and a pulley shaft. The pulley comprises a rim with a U-shaped rope groove, a hub, a spoke and a swinging mechanism, wherein the spoke is connected with the rim and the hub, the swinging mechanism comprises an inner ball, a steel ring and a positioning sleeve, the inner ball is sleeved in an inner ring of the steel ring, the ball center of the inner ball is superposed on the circle center of the steel ring which is fixedly connected with the hub by the positioning sleeve, and the inner ball is provided with a pulley shaft hole matched with the pulley shaft which penetrates through the pulley shaft hole of the inner ball of the swinging mechanism and is in rotating connection with the inner ball. When the jib-type crane pulley device is in use, the pulley can wholly swing along with the inclination direction of a hoisted object to constantly keep a force position kept in the center of the pulley so that the rope groove can not be deformed due to unbalanced force, a steel wire is prevented from jumping to cause danger, the deformation of the pulley is effectively lessened in the use process, and the pulley has prolonged service life and is safe to hoist.
Description
Technical field
The present invention relates to a kind of Hoisting Machinery, relate in particular to the pulley gear on a kind of jib-type crane.
Background technique
Hoist is many actions Hoisting Machinery of vertical-lift within the specific limits and horizontal carrying heavy goods, claims crane again, belongs to materials handling machinery.Hoist is divided into jib-type crane and crane span structure type hoist by structure.The structural feature of jib-type crane be all have one overhang, rotatable jib is as main bearing member, aggregate motion by four great institutions such as lifting mechanism, jib lubbing mechanism, rotating machinery and travelling mechanisms can be implemented in the handling operation in circle or long-round-shape space.Lifting mechanism is the mechanism that is used for carrying out the material vertical lift, is main, the most basic mechanism of hoist, and pulley is the most basic work package of hoist as the part of lifting mechanism.Pulley is that Rational structure and size by pulley realizes to the effect of wire rope, grooving is as the main position that holds wire rope, should guarantee that stressed wire rope passes through smoothly, guarantee again under the operating conditions of mechanism's vibrations, wire rope is not job-hoped when rolling across pulley, and in the transmittance process of power, extruding and friction take place in wire rope and pulley groove inwall, the damage of pulley easy deformation.
Chinese patent literature CN 2608186Y discloses a kind of " the rolling pulley of double width plate ", this pulley is made of wheel hub, spoke plate and grooving, spoke plate is arranged on the wheel hub, grooving is arranged on the spoke plate, spoke plate is two blocks of cold rolling circular steel plates, two spoke plates are welded on the described wheel hub, and the grooving that is the U type is welded on the spoke plate.Though the pulley of this structure has improved the wear resistance of pulley to a certain extent with the method that increases a spoke plate, if but it is big or when lacking the weight equipment of special hanger to lift by crane some physical dimension, wire rope is because of the unbalanced stressed very large drift angle that has, and the fixed pulley group of crane arm support head can not in time be adjusted angle, gravity is pressed in a side of grooving always, in the course of time, grooving can produce distortion or fracture, not only shortened the working life of pulley, also might cause wire rope to take off groove, fall hook, thereby accidents caused, seriously jeopardize the safety of lifting.
Summary of the invention
The objective of the invention is to solve the structural defective of the pulley existence that has arm derrick crane now, provide a kind of and can effectively reduce pulley distortion in use, prolong the working life of pulley and the jib-type crane pulley device of lifting safety.
The technological scheme that realizes the object of the invention is a kind of jib-type crane pulley device, comprises pulley and pulley spindle; Pulley comprises wheel rim, the wheel hub of band U type grooving and is connected wheel rim and the spoke of wheel hub; Pulley also comprises swing mechanism; Swing mechanism comprises endosphere, steel loop and setting sleeve; Endosphere is placed in the interior ring of steel loop, and its centre of sphere overlaps with the center of circle of steel loop; Setting sleeve is fixedlyed connected steel loop with wheel hub; Endosphere is provided with the pulley axis hole that matches with pulley spindle, and pulley spindle passes the pulley axis hole of the endosphere of swing mechanism, is rotationally connected with endosphere.
Described swing mechanism also comprises on the sliding keyway that is positioned at endosphere and the slide key of fixedlying connected with endosphere; The curved surface of slide key parallel with the sphere of endosphere and with the steel loop sliding contact, the height of the curved surface of slide key is slightly larger than the degree of depth of the sliding keyway of endosphere.
Described swing mechanism also comprises and pulley spindle and the contacted retainingf key of endosphere; Be respectively equipped with the groove that matches with retainingf key and fixing keyway on described pulley spindle and the last endosphere.
Described endosphere is distributed with a plurality of oil grooves from the centre of sphere to the sphere; Described pulley also comprises oil circuit, and oil circuit is arranged in spoke and wheel hub, and communicates with endosphere and steel loop.
Described steel loop is provided with the spacer groove that connects steel loop, and described oil circuit also comprises with oil nozzle and being connected, and is arranged in the pad of the spacer groove of steel loop.
Jib-type crane pulley device also comprises the pulley frame with the two ends clamping of pulley spindle.
Described pulley frame also comprises the lock washer that is positioned at pulley frame and pulley spindle contacting point.
Described pulley spindle also comprises the axle sleeve that is enclosed within on the pulley spindle between the pulley frame.
The present invention has positive effect: (1) jib-type crane pulley device of the present invention in use, true dip direction according to institute's hoisting heavy, pulley can integral body be swung thereupon, guarantee that stressed position is all the time at the center of pulley, so just grooving is out of shape because of being subjected to force unbalance, the dangerous situation of wire rope job-hopping can not take place yet, reduced pulley distortion in use effectively, prolonged the working life and the lifting safety of pulley.
(2) when the swing mechanism of jib-type crane pulley device of the present invention also comprises slide key, slide key connects endosphere and steel loop, main force part when being lifting, because the height of its curved surface is slightly larger than the degree of depth of the sliding keyway of endosphere, therefore form the space between steel loop and endosphere, in the time of can guaranteeing that pulley deflects into the limit like this, steel loop only can touch inner ball surface, and can not be expressed to pulley spindle, pulley spindle is worn.
(3) size of the inner ball surface of jib-type crane pulley device of the present invention and height its pulley spindle outside have determined the amplitude of swinging, and can be provided with as required to be implemented in the scope of design angle that pulley as required freely swings.
(4) when the swing mechanism of jib-type crane pulley device of the present invention also comprises retainingf key, can guarantee that endosphere only can do circumference and rotate on pulley spindle, and can move left and right, guaranteed the stability of pulley and the safety of lifting.
(5) when jib-type crane pulley device of the present invention also is provided with oil circuit, can make things convenient for the interpolation of lubricant oil, this device is turned round smoothly.Simultaneously, when also pad being set, can guarantee the transporting direction of lubricant oil, can instead not gush at the oil nozzle place that oil circuit contacts with steel loop.
(6) when jib-type crane pulley device of the present invention also comprises the lock washer of pulley frame and fixed pulley frame, made things convenient for the use of this device on hoist.
(7) when also being with axle sleeve on the pulley spindle of jib-type crane pulley device of the present invention, can play a protective action to pulley spindle.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, according to specific embodiment also in conjunction with the accompanying drawings, the present invention is further detailed explanation below, wherein:
Fig. 1 is the structural representation of jib-type crane pulley of the present invention.
Fig. 2 is the A place partial enlarged drawing of Fig. 1.
Fig. 3 is the pulley spindle structural representation among Fig. 1, and wherein (a) is the front view of pulley spindle, (b) is the B-B sectional view of (a).
Fig. 4 is the structure schematic representation of the setting sleeve among Fig. 1.
Fig. 5 is the lock washer structural representation among Fig. 1.
Fig. 6 is the gasket construction schematic representation among Fig. 1.
Fig. 7 is the slide key structural representation among Fig. 1, and wherein (a) is the front view of slide key, (b) is the attached view of (a).
Fig. 8 is the endosphere structural representation among Fig. 1, and wherein (a) is the front view of endosphere, (b) is the C-C sectional view of (a), (c) is the left view of (a), (d) is the D-D sectional view of (c), and the E that (e) is (d) is to figure.
The outer shroud structural representation of (a) figure of Fig. 9 (b) is the F-F sectional view of (a).
Label in the accompanying drawing is as follows: wheel rim 1;
Wheel hub 3;
Pulley spindle 4, groove 41, axle sleeve 42;
Swing mechanism 5, endosphere 51, pulley axis hole 51-1, sliding keyway 51-2, fixing keyway 51-3, oil groove 51-4, steel loop 52, spacer groove 52-1, setting sleeve 53, slide key 54, retainingf key 55;
Oil circuit 6, pad 61;
Embodiment
(embodiment 1)
See Fig. 1 and Fig. 2, the jib-type crane pulley device of present embodiment comprises pulley, pulley spindle 4 and pulley frame 7.
Pulley chartered steamer edge 1, spoke 2, wheel hub 3, swing mechanism 5 and oil circuit 6.Oil circuit 6 is arranged in spoke 2 and wheel hub 3, and communicates with endosphere 51 and steel loop 52.There is the U type grooving spoke 2 of load-bearing wires rope to connect wheel rim 1 and wheel hub 3 on the wheel rim 1.Swing mechanism 5 comprises endosphere 51, steel loop 52, setting sleeve 53, slide key 54 and retainingf key 55.
Still see Fig. 1 and Fig. 2, endosphere 51 is placed in the interior ring of steel loop 52 for the ampco casting forms, and its centre of sphere overlaps with the center of circle of steel loop 52.See Fig. 8, endosphere 51 is provided with the pulley axis hole 51-1 that matches with pulley spindle 4, and pulley spindle 4 passes the pulley axis hole 51-1 of the endosphere 51 of swing mechanism 5, is rotationally connected with endosphere 51.Endosphere 51 is provided with the sliding keyway 51-2 that matches with slide key 54, see Fig. 7, the curved surface of slide key 54 parallel with the sphere of endosphere 51 (sphere that is slide key 54 curved surfaces and endosphere 51 is a concentric circle), the curved surface of slide key 54 and steel loop 52 sliding contacts, see Fig. 1 and Fig. 2, the height of the curved surface of slide key 54 is slightly larger than the degree of depth of the sliding keyway 51-2 of endosphere 51, forms the space between steel loop 52 and endosphere 51.See Fig. 8, endosphere 51 is provided with the fixedly keyway 51-3 that matches with retainingf key 55, sees Fig. 1 to Fig. 3, and retainingf key 55 is between the fixedly keyway 51-3 of the groove 41 of pulley spindle 4 and endosphere 51, contact with pulley spindle 4 and endosphere 51, can guarantee that endosphere 51 can move left and right on pulley spindle 4.See Fig. 8, endosphere 51 is distributed with a plurality of oil groove 51-4 from the centre of sphere to the sphere, and lubricant oil injects from oil circuit 6, by the lubricated whole endosphere 51 of oil groove 51-4.
See Fig. 9, after steel loop 52 integral body process, be divided into two with milling cutter from the centre, thereby reserve spacer groove 52-1, after putting into pad 61 (see figure 6)s, the oil nozzle of pad 61 with oil circuit 6 is connected with articulation bolt, make lubricant oil can forward flow into steel loop 52 and endosphere 51, but reverse seepage not.
See Fig. 1, Fig. 2 and Fig. 4, setting sleeve 53 is fixedlyed connected steel loop 52 with wheel hub 3.
See Fig. 1, the two ends clamping of pulley frame 7 and pulley spindle 4 is provided with lock washer 71 in pulley frame 7 and pulley spindle 4 contacting points, also is with axle sleeve 42 on the pulley spindle between the pulley frame 74.
Should be appreciated that specific embodiment described above only is used to explain the present invention, and be not used in qualification the present invention.Conspicuous variation of being extended out by spirit of the present invention or change still are among protection scope of the present invention.
Claims (8)
1. a jib-type crane pulley device comprises pulley and pulley spindle (4); Pulley comprises wheel rim (1), the wheel hub (3) of band U type grooving and is connected wheel rim (1) and the spoke (2) of wheel hub (3); It is characterized in that: pulley also comprises swing mechanism (5); Swing mechanism (5) comprises endosphere (51), steel loop (52) and setting sleeve (53); Endosphere (51) is placed in the interior ring of steel loop (52), and its centre of sphere overlaps with the center of circle of steel loop (52); Setting sleeve (53) is fixedlyed connected steel loop (52) with wheel hub (3); Endosphere (51) is provided with the pulley axis hole (51-1) that matches with pulley spindle (4), and pulley spindle (4) passes the pulley axis hole (51-1) of the endosphere (51) of swing mechanism (5), is rotationally connected with endosphere (51).
2. jib-type crane pulley device according to claim 1 is characterized in that: described swing mechanism (5) also comprises the slide key (54) that the sliding keyway (51-2) that is positioned at endosphere (51) is last and fixedly connected with endosphere (51); The curved surface of slide key (54) parallel with the sphere of endosphere (51) and with steel loop (52) sliding contact, the height of the curved surface of slide key (54) is slightly larger than the degree of depth of the sliding keyway (51-2) of endosphere (51).
3. jib-type crane pulley device according to claim 1 and 2 is characterized in that: described swing mechanism (5) also comprises and pulley spindle (4) and the contacted retainingf key of endosphere (51) (55); Be respectively equipped with the groove (41) that matches with retainingf key (55) and fixing keyway (51-3) on described pulley spindle (4) and the last endosphere (51).
4. jib-type crane pulley device according to claim 3 is characterized in that: described endosphere (51) is distributed with a plurality of oil grooves (51-4) from the centre of sphere to the sphere; Described pulley also comprises oil circuit (6), and oil circuit (6) is arranged in spoke (2) and wheel hub (3), and communicates with endosphere (51) and steel loop (52).
5. jib-type crane pulley device according to claim 4, it is characterized in that: described steel loop (52) is provided with the spacer groove (52-1) that connects steel loop (52), described oil circuit (6) also comprises with oil nozzle and being connected, and is arranged in the pad (61) of the spacer groove (52-1) of steel loop (52)
6. jib-type crane pulley device according to claim 5 is characterized in that: also comprise the pulley frame (7) with the two ends clamping of pulley spindle (4).
7. jib-type crane pulley device according to claim 6 is characterized in that: described pulley frame (7) also comprises the lock washer (71) that is positioned at pulley frame (7) and pulley spindle (4) contacting point.
8. jib-type crane pulley device according to claim 7 is characterized in that: described pulley spindle (4) also comprises the axle sleeve (42) that is enclosed within on the pulley spindle (4) that is positioned between the pulley frame (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910030369A CN101839324A (en) | 2009-03-20 | 2009-03-20 | Jib-type crane pulley device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910030369A CN101839324A (en) | 2009-03-20 | 2009-03-20 | Jib-type crane pulley device |
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| Publication Number | Publication Date |
|---|---|
| CN101839324A true CN101839324A (en) | 2010-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910030369A Pending CN101839324A (en) | 2009-03-20 | 2009-03-20 | Jib-type crane pulley device |
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| Country | Link |
|---|---|
| CN (1) | CN101839324A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135169A (en) * | 2011-03-18 | 2011-07-27 | 衡阳中地装备探矿工程机械有限公司 | Automatic reversing fixed pulley |
| CN102248375A (en) * | 2011-06-24 | 2011-11-23 | 江西华伍制动器股份有限公司 | Pulley wheel manufacturing process |
| CN103171979A (en) * | 2013-04-03 | 2013-06-26 | 中联重科股份有限公司 | Pulley device and tower crane comprising same |
| CN104565295A (en) * | 2013-10-17 | 2015-04-29 | 辽东学院 | Combined universal pulley |
-
2009
- 2009-03-20 CN CN200910030369A patent/CN101839324A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135169A (en) * | 2011-03-18 | 2011-07-27 | 衡阳中地装备探矿工程机械有限公司 | Automatic reversing fixed pulley |
| CN102248375A (en) * | 2011-06-24 | 2011-11-23 | 江西华伍制动器股份有限公司 | Pulley wheel manufacturing process |
| CN103171979A (en) * | 2013-04-03 | 2013-06-26 | 中联重科股份有限公司 | Pulley device and tower crane comprising same |
| CN103171979B (en) * | 2013-04-03 | 2015-05-13 | 中联重科股份有限公司 | Pulley device and tower crane comprising same |
| CN104565295A (en) * | 2013-10-17 | 2015-04-29 | 辽东学院 | Combined universal pulley |
| CN104565295B (en) * | 2013-10-17 | 2017-02-01 | 辽东学院 | Combined universal pulley |
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Open date: 20100922 |