CN2154250Y - Mini-tower hoist - Google Patents
Mini-tower hoist Download PDFInfo
- Publication number
- CN2154250Y CN2154250Y CN 92224274 CN92224274U CN2154250Y CN 2154250 Y CN2154250 Y CN 2154250Y CN 92224274 CN92224274 CN 92224274 CN 92224274 U CN92224274 U CN 92224274U CN 2154250 Y CN2154250 Y CN 2154250Y
- Authority
- CN
- China
- Prior art keywords
- tower
- arm
- crane arm
- winch
- utility
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a miniature tower crane which is the lifting transport machinery in the construction machinery. The utility model comprises a horizontal boom, a trolley, a hook, a draw rod, a tower cap, a tower body, a cab, upper and lower tripods, a balance arm, a drag rope, a lifting amplitude winding engine, a steel cable, a rotary body, a lower rotary frame, a pressure bearing, a pulley block, a load moment limiter, a balancer and a counter weight box. The utility model is characterized in that the end of the horizontal boom is provided with two fixed pulleys; the balance arm is arranged on the lower part of the tower body; the pulley block is arranged between the tower cap and the lifting winding engine; the rotary body in the lower rotary frame is a lattice type cone; a rotary mechanism is driven by manpower. The utility model has the advantages of convenient and quick assembly and disassembly and low cost, and the utility model can be used for the lifting transport of floor components and construction material for building below four stories.
Description
This machine is a kind of handling machinery in the vehicle for construction.
The elevator machinery that uses in the building operation at present is most widely used general with tower crane, and technology is most advanced, safety is the most reliable.The hoisting moment of these big-and-middle-sized tower cranes greater than 10 tons of rice, lifting altitude greater than 20 meters, brachium greater than 16 meters, be mainly used in the building more than five layers.Building below four layers does not have small-sized tower crane to use, and adopt that derrick, mast hang etc. (much is homemade, do not pass through technology, safety demonstration) bad mechanical property, manually have bad luck simple and easy machinery many, that production efficiency is low, no safety locking motion, story hidden danger are many, bring difficulty to construction.
The prior art that small-sized tower crane adopts is: horizontal crane arm, carriage amplitude varying, two suspension centre, steel structure are the lattice splicing structure, safety locking motion, and counterweight, ballast are sand, stone or soil.
The purpose of this utility model is for the building materials that satisfy small building below four layers and the lifting traffic requirements of floor member, substitutes derrick, mast and machinery and artificial hoisting operation such as hangs, and makes the handling machinery of small building realize modernization.
The purpose of this utility model is that the composition of realizing like this comprises: horizontal crane arm, dolly, suspension hook, pull bar, tower cap, body of the tower, operator's compartment, upper and lower spider, equilibrium arm, drag-line, hoist winch and steel rope, luffing winch and steel rope, gyro-rotor, turning down support, pressure bearing, assembly pulley, limiter of moment, weight box, ballast tank.Its characteristics are: horizontal crane arm end is equipped with two fixed pulleys, and the equilibrium arm of horizontal crane arm is installed in the body of the tower bottom, hoists and between winch and tower cap assembly pulley is housed, and the gyro-rotor in the turning down support is the lattice cone, and the swing type mechanism manpower drives.
Small-sized tower crane advantage compared with prior art is:
1, the hoist rope of horizontal crane arm wear around be by tower cap pulley to horizontal crane arm end pulley, pass through dolly, suspension hook again, fix at the crane arm root.Rather than fix through dolly, suspension hook and crane arm end again to crane arm root pulley by the tower cap, so both can satisfy the transmission of the operation steel rope that hoists, can realize directly that again the horizontal crane arm installs from sagging shape to horizontal plate, simplified horizontal crane arm hoist rope elder generation fixed arm root sling with the assembly unit of tower cap, separate rope, be fixed to the arm end rise plate install, separate rope, need aloft work wear again around and the operation of fixing at the arm end.
2, the equilibrium arm of horizontal crane arm is in the body of the tower bottom, and compares at top same level crane arm one straight line, reduced tower machine height of gravitational center, improved complete machine stability, and easy for installation, for artificial driving rotational mechanism provides the bigger arm of force.
3, the winch that hoists is contained on the equilibrium arm, before raising line arrives tower crown portion, through additional assembly pulley.Compare with direct arrival tower crown portion like this, can provide bigger power to make body of the tower and crane arm play plate and install, bring into play the high-power advantage of the winch that hoists to greatest extent, adopt the luffing winch to play plate than in the past and compare, greatly reduce the power of luffing winch, thereby reduced complete machine power.Reduce cost, saved electric energy.
4, the gyro-rotor in the turning down support is the lattice cone, adopts the big bearing of revolution to compare with existing turning down, greatly reduces cost.Adopt the lattice cone to compare with last revolution, the difficulty of having avoided gyro-rotor heavy parts aloft work lifting to install.
5, swing type mechanism adopts manpower to drive and does not adopt driven by power.The parts that the motor, retarder, bull gear etc. of having simplified swing type mechanism are difficult to process, assembly precision is high have reduced cost, and swing type mechanism is born by manpower, and manpower is enough, has brought into play the abundant advantage of small building human resources.
Accompanying drawing is small-sized tower crane scheme drawing.
1, suspension hook.Comprise single-sheaved block.
2, dolly.Comprise vehicle frame, 4 rollers and two pulleys.
3, horizontal crane arm.Comprise two suspension centres, 6 pulleys, 2 pin-and-holes.
4, luffing winch and steel rope.Comprise the luffing limiting device.
5, pull bar.
6, tower cap.Comprise 1 pulley, 7 pin-and-holes.
7, limiter of moment.
8, go up spider.Comprise two pulleys.
9, body of the tower.Be made up of more piece, six pin-and-holes are arranged at the bottom.
10, operator's compartment.Comprise the electrical equipment operating control.
11, drag-line.
12, following spider.Comprise three pulleys.
13, equilibrium arm.Comprise 4 pin-and-holes, 1 pulley, 4 drawing handles.
14, hoist winch and steel rope.Comprise height limitator.
15, weight box.
16, turning down bearing support.Comprise the octagon areal of support, eight adjustable eccentric rollers, eight supporting legs are housed in it.
17, revolution cone.Comprise 8 pin-and-holes, 1 annular arrangement surface of revolution.
18, underframe.Form by 4 crossbeams and 2 longerons.
19, ballast tank.
20, pressure bearing.
The utility model is described in further detail below in conjunction with accompanying drawing
1, steel structure part
The horizontal crane arm is loaded onto luffing winch and steel rope, dolly, and its root connects with the tower cap with pin.Two suspension centres are connected with tower cap top by pull bar, connect spider with pin at the opposite side of tower cap.Body of the tower can respectively be saved by lifting altitude choosing dress on demand in the bottom of tower cap, and the body of the tower bottom connects with gyro-rotor, loads onto hoist winch and steel rope on equilibrium arm, plays spider, weight box, pulley, and the equilibrium arm root connects with gyro-rotor with pin.The equilibrium arm end connects with last spider with drag-line.Gyro-rotor is by eight on the rotary support adjustable roller wheel bearing annular arrangement surfaces of revolution, and the bottom is connected in the underframe center through pressure bearing, and ballast tank is contained on the underframe, and operator's compartment is contained under the tower cap.
2, playing plate installs and the operation that hoists
Hoist the steel rope assembly pulley that another pulley is formed on last spider pulley, equilibrium arm top sheave and spider on the winch to the pulley of tower crown portion, is fixed at the crane arm root through the pulley of horizontal crane arm end pulley, dolly, suspension hook again.
Horizontal crane arm end that assembly unit is good is fixed on the body of the tower also and the body of the tower horizontal positioned with rope when playing plate and installing, when hoist rope tightens up, three steel ropes on the assembly pulley are under the admittance of following three pulleys of spider, pull-up body of the tower and crane arm, and make body of the tower to vertical, the body of the tower bottom is connected with pin with gyro-rotor top.Separate the static line of crane arm end, when hoist rope continues to tighten up, sagging crane arm be pulled up to horizontal more than, with pull bar crane arm is connected with tower cap top, set level crane arm and promptly finished plate and install.
Suspension hook is made perpendicular movement up and down by the winch rope traction that hoists, and realizes the operation that hoists of lift heavy.
3, luffing motion
Luffing winch steel rope connects with 2 in dolly under the admittance of horizontal crane arm top sheave, and luffing winch rope trolley is back and forth luffing motion on the horizontal crane arm.
4, gyroscopic movement
The artificial drawing handle that promotes on the weight box rotatablely moves gyro-rotor under the rotation of turning down bearing support roller wheel bearing and pressure bearing, make body of the tower, horizontal crane arm and hang thing around body of the tower line of centers gyroscopic movement.
Claims (5)
1, the composition of small-sized tower crane comprises: the horizontal crane arm, dolly, suspension hook, pull bar, the tower cap, body of the tower, operator's compartment, on, following spider, equilibrium arm, drag-line, winch and steel rope hoist, luffing winch and steel rope, gyro-rotor, the turning down support, pressure bearing, assembly pulley, limiter of moment, weight box, ballast tank, it is characterized in that: two fixed pulleys are equipped with in horizontal crane arm end, the equilibrium arm of horizontal crane arm is installed in the body of the tower bottom, hoist and between winch and tower cap assembly pulley is housed, the gyro-rotor in the turning down support is the lattice cone.
2, small-sized tower crane according to claim 1 is characterised in that: the hoist rope of horizontal crane arm wear around be by tower cap pulley to horizontal crane arm end pulley, pass through dolly, suspension hook again, fix at the crane arm root.
3, small-sized tower crane according to claim 1 is characterised in that: the winch that hoists is contained on the equilibrium arm, before raising line arrives tower crown portion, through additional assembly pulley.
4, small-sized tower crane according to claim 1 is characterised in that: the gyro-rotor of turning down bracket supports is the lattice cone, and the bottom of gyro-rotor is supported by pressure bearing.
5, small-sized tower crane according to claim 1 is characterised in that: handle is housed on the weight box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92224274 CN2154250Y (en) | 1992-06-07 | 1992-06-07 | Mini-tower hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92224274 CN2154250Y (en) | 1992-06-07 | 1992-06-07 | Mini-tower hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2154250Y true CN2154250Y (en) | 1994-01-26 |
Family
ID=33769603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92224274 Expired - Fee Related CN2154250Y (en) | 1992-06-07 | 1992-06-07 | Mini-tower hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2154250Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387505C (en) * | 2005-12-05 | 2008-05-14 | 郑州机械研究所 | Hoisting system for installing assembling and disembling high stand havey equipment |
| CN103466476A (en) * | 2013-09-26 | 2013-12-25 | 中联重科股份有限公司 | Tower crane |
| CN103541382A (en) * | 2013-11-04 | 2014-01-29 | 李乐基 | Loader extending arm for building |
| CN105947908A (en) * | 2016-07-26 | 2016-09-21 | 湖南农业大学 | Lower-rotation minitype tower crane integrating self-lifting and rotation |
| CN111056461A (en) * | 2019-12-19 | 2020-04-24 | 常德市鼎城永欣机械制造有限公司 | Multifunctional tower crane body |
-
1992
- 1992-06-07 CN CN 92224274 patent/CN2154250Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387505C (en) * | 2005-12-05 | 2008-05-14 | 郑州机械研究所 | Hoisting system for installing assembling and disembling high stand havey equipment |
| CN103466476A (en) * | 2013-09-26 | 2013-12-25 | 中联重科股份有限公司 | Tower crane |
| CN103466476B (en) * | 2013-09-26 | 2015-10-28 | 中联重科股份有限公司 | Tower crane |
| CN103541382A (en) * | 2013-11-04 | 2014-01-29 | 李乐基 | Loader extending arm for building |
| CN105947908A (en) * | 2016-07-26 | 2016-09-21 | 湖南农业大学 | Lower-rotation minitype tower crane integrating self-lifting and rotation |
| CN111056461A (en) * | 2019-12-19 | 2020-04-24 | 常德市鼎城永欣机械制造有限公司 | Multifunctional tower crane body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |