CN205241111U - Arm gear train structure is received to jib loading boom - Google Patents
Arm gear train structure is received to jib loading boom Download PDFInfo
- Publication number
- CN205241111U CN205241111U CN201520864371.4U CN201520864371U CN205241111U CN 205241111 U CN205241111 U CN 205241111U CN 201520864371 U CN201520864371 U CN 201520864371U CN 205241111 U CN205241111 U CN 205241111U
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- pulley
- arm
- tower
- crane arm
- assembly pulley
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Abstract
The utility model discloses an arm gear train structure is received to jib loading boom, including assembly pulley II (8) of installing at the top of the tower, install assembly pulley I (2) at jib loading boom (6) tip, rise to rise wire rope (3), draw in rod (7) and outside link (5), it rises the cylinder around going out from two respectively to play to rise wire rope, get into behind the quartic diversion and receive in the arm change times train, a pulley via the top of the tower assembly pulley II in, wear a pulley to the I of jib loading boom outermost head sheave group in, another pulley among the re -entering time top of the tower assembly pulley II, another pulley to the I of jib loading boom outermost head sheave group in again, last fag end is fixed on the top of the tower otic placode. The utility model discloses it makes the operation reliably steady more to increase receipts arm pulley increase multiplying power, wire rope can prolong body of the tower symmetrical arrangement, and the body of the tower is more stable, hoisting mechanism can arrange subaerial, has reduced the aerial work risk, has improved customer's satisfaction.
Description
Technical field
The utility model relates to a kind of crane arm and receives arm wheel train structure, belongs to derrick crane technical field.
Background technology
At present, the top of derrick crane is made up of a crane arm and a counter-jib conventionally, and crane arm uses push-and-pull rod armJoint can not be gone up receipts. As shown in Figure 1, existing crane arm is received arm train and is adopted two multiplying powers to receive arm, but in actual mechanical processThere are the following problems: rope system wears around cumbersome, and its speed while receiving arm, receives stationarity and the poor stability of arm; ShouldTrain operating mode applicatory is relatively fixing, cannot realize the upper receipts function of crane arm joint, is not suitable for special operation condition.
Summary of the invention
The problem existing for above-mentioned prior art, the utility model provides a kind of crane arm to receive arm wheel train structure, can realizeThe upper receipts function of weighing arm joint, is suitable for special operation condition, can reduce high-altitude application control and eminence and fall risk, the receipts arm mistake of crane armCheng Pingwen, safe and reliable, can improve client's satisfaction.
To achieve these goals, tower body and jacking apparatus are introduced in a kind of bottom that the utility model adopts, and comprise and are arranged on tower topAssembly pulley II, be arranged on the assembly pulley I of crane arm end, hoist rope, draw-in bar and outside link, described in the steel wire that hoistsRope lays out from two cylinders that hoist respectively, enters and receive in arm zoom train, via one in tower top assembly pulley II after four break-insIndividual pulley, wears to a pulley in crane arm outermost end assembly pulley I, then returns to another pulley in tower top assembly pulley II, more extremelyAnother pulley in crane arm outermost end assembly pulley I, last fag end is fixed on tower top otic placode; Described draw-in bar and outside linkBe arranged symmetrically in respectively between the crane arm and tower top of both sides.
Described hoist rope is the steel wire rope that many group wirerope-windings form together.
The end of described draw-in bar and outside link all has connecting hole, and is connected with crane arm or tower top by bolt.
Described draw-in bar and outside link are expansion link.
Compared with prior art, the utility model, by improving wheel train structure, changes them into four multiplying power structures by two multiplying powers, treats steelAfter silk rope is put on, operation lifting mechanism, makes both sides hoist rope obtain pretension. Guarantee after bilateral hoist rope pretension, thenOperation lifting mechanism, allows both sides crane arm synchronously shake slowly around root twisted point. Connect with the collision block of tower top when crane arm middle partWhile touching, crane arm is separately fixed on tower top, has realized the receipts arm of crane arm, be applicable to special operation condition. Increase and receive arm pulleyIncreasing multiplying power makes operation more steadily reliable; Steel wire rope can prolong tower body and be arranged symmetrically with, and makes tower body more stable; Lifting mechanism energy clothPut on the ground, reduced high-rise working risk, improved client's satisfaction.
Brief description of the drawings
Fig. 1 is the structural representation that existing jib for tower crane is received arm train;
Fig. 2 is the structural representation that the utility model is received arm train;
Fig. 3 is use view of the present utility model;
Fig. 4 is that crane arm is received the structural representation after arm.
In figure: 1, tower top otic placode, 2, assembly pulley I, 3, hoist rope, 4, the cylinder that hoists, 5, outside link, 6, liftingArm, 7, draw-in bar, 8, assembly pulley II.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figures 2 to 4, a kind of crane arm is received arm wheel train structure, comprises the assembly pulley II8 that is arranged on tower top, has been arranged onThe assembly pulley I2 of weighing arm 6 ends, hoist rope 3, draw-in bar 7 and outside link 5, described hoist rope 3 is respectively from twoThe individual cylinder that hoists lays out, and enters and receive in arm zoom train after four break-ins, via a pulley in tower top assembly pulley II8, wearsTo a pulley in crane arm outermost end assembly pulley I2, then return to another pulley in tower top assembly pulley II8, then to crane armAnother pulley in the assembly pulley I2 of outer end, last fag end is fixed on tower top otic placode 1; 5 points of described draw-in bar 7 and outside linksBe not arranged symmetrically between the crane arm 6 and tower top of both sides.
When use, first hoist rope 3 is laid out from two cylinders 4 that hoist respectively, after four break-ins, enter and receive arm zoom wheelIn system, via a pulley in tower top assembly pulley II8, wear to a pulley in crane arm outermost end assembly pulley I2, then returnReturn another pulley in tower top assembly pulley II8, then to another pulley in crane arm outermost end assembly pulley I2, last fag end is fixedOn tower top otic placode 1. After steel wire rope is put on, operation lifting mechanism, makes both sides hoist rope obtain pretension. Guarantee that bilateral risesRise after steel wire rope pretension, the lifting mechanism that reruns, allows both sides crane arm synchronously shake slowly around root twisted point. Work as crane armWhen middle part contacts with the collision block of tower top, crane arm is separately fixed on tower top, has realized the receipts arm of crane arm.
The steel wire rope that described hoist rope 3 forms for many group wirerope-windings together.
The end of described draw-in bar 7 and outside link 5 all has connecting hole, and is connected with crane arm 6 or tower top by bolt,Be convenient to remove and install.
Preferably, described draw-in bar 7 and outside link 5 are expansion link, under special circumstances also can by adjust draw-in bar 7 withAnd the flexible situation of outside link 5 realizes the folding and unfolding of crane arm.
From said structure, the utility model, by improving wheel train structure, changes them into four multiplying power structures by two multiplying powers, treats steelAfter silk rope is put on, operation lifting mechanism, makes both sides hoist rope obtain pretension. Guarantee after bilateral hoist rope pretension, thenOperation lifting mechanism, allows both sides crane arm synchronously shake slowly around root twisted point. Connect with the collision block of tower top when crane arm middle partWhile touching, crane arm is separately fixed on tower top, has realized the receipts arm of crane arm, be applicable to special operation condition. Increase and receive arm pulleyIncreasing multiplying power makes operation more steadily reliable; Steel wire rope can prolong tower body and be arranged symmetrically with, and makes tower body more stable; Lifting mechanism energy clothPut on the ground, reduced high-rise working risk, improved client's satisfaction.
Claims (4)
1. crane arm is received an arm wheel train structure, it is characterized in that, comprises the assembly pulley II (8) that is arranged on tower top, has been arranged onThe assembly pulley I (2) of weighing arm (6) end, hoist rope (3), draw-in bar (7) and outside link (5), describedRise steel wire rope (3) and lay out from two cylinders that hoist respectively, after four break-ins, enter and receive in arm zoom train, via tower top pulleyA pulley in group II (8), wears to a pulley in crane arm outermost end assembly pulley I (2), then returns to tower top assembly pulleyAnother pulley in II (8), then to another pulley in crane arm outermost end assembly pulley I (2), last fag end is fixed on tower topOn otic placode (1); The crane arm (6) that described draw-in bar (7) and outside link (5) are arranged symmetrically in respectively both sides and tower top itBetween.
2. a kind of crane arm according to claim 1 is received arm wheel train structure, it is characterized in that described hoist rope (3)The steel wire rope together forming for many group wirerope-windings.
3. a kind of crane arm according to claim 2 is received arm wheel train structure, it is characterized in that, described draw-in bar (7) withAnd the end of outside link (5) all has connecting hole, and be connected with crane arm (6) or tower top by bolt.
4. a kind of crane arm according to claim 2 is received arm wheel train structure, it is characterized in that, described draw-in bar (7) withAnd outside link (5) is expansion link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864371.4U CN205241111U (en) | 2015-10-30 | 2015-10-30 | Arm gear train structure is received to jib loading boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864371.4U CN205241111U (en) | 2015-10-30 | 2015-10-30 | Arm gear train structure is received to jib loading boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205241111U true CN205241111U (en) | 2016-05-18 |
Family
ID=55940190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520864371.4U Active CN205241111U (en) | 2015-10-30 | 2015-10-30 | Arm gear train structure is received to jib loading boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205241111U (en) |
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2015
- 2015-10-30 CN CN201520864371.4U patent/CN205241111U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |