CN111196571A - Telescopic tower body of small tower crane - Google Patents
Telescopic tower body of small tower crane Download PDFInfo
- Publication number
- CN111196571A CN111196571A CN201811375850.4A CN201811375850A CN111196571A CN 111196571 A CN111196571 A CN 111196571A CN 201811375850 A CN201811375850 A CN 201811375850A CN 111196571 A CN111196571 A CN 111196571A
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- CN
- China
- Prior art keywords
- tower body
- tower
- idler wheels
- small
- telescopic
- 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.)
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
A telescopic tower body of a small tower type hoisting machine comprises an inner tower body, a middle tower body and an outer tower body, wherein the inner tower body can move telescopically in the middle tower body, the middle tower body can move telescopically in the outer tower body, four mutually perpendicular upper idler wheels are respectively arranged at four corners of the tops of the middle tower body and the outer tower body, and slide ways of the upper idler wheels are four vertical columns of the adjacent inner tower body; four lower idler wheels are respectively arranged at four corners of the bottoms of the inner tower body and the middle tower body, and the inner sides of the adjacent outer tower bodies are fixed by the inner slideways corresponding to the lower idler wheels. The three-dimensional adjustable lifting height adjusting device is compact in structure, reasonable in spatial arrangement, small in occupied area, flexible in operation, capable of adjusting three lifting heights of the tower body quickly, safely and stably and suitable for working environments with different lifting heights.
Description
Technical Field
The invention relates to a main part of a small-sized tower crane, in particular to a telescopic tower body of the small-sized tower crane, belonging to the technical field of crane manufacture.
Background
Tower crane tower is called tower crane for short, and its boom is mounted on the rotating crane of high tower body. The working space is large, and the device is mainly used for vertical and horizontal conveying of materials and installation of building components in building construction. The device consists of a metal structure, a working mechanism and an electrical system. The metal structure comprises a tower body, a crane boom, a base and the like. The working mechanism has four parts of lifting, amplitude variation, rotation and walking. The electric system comprises a motor, a controller, a power distribution cabinet, a connecting circuit, a signal and lighting device and the like.
In recent years, in small-sized building construction of buildings with three or less floors, residential houses, low-floor industrial buildings and the like, a universal building tower crane is mostly adopted, a common small-sized tower crane machine is adopted, a tower body with a telescopic structure is only two sections, the height of each section of the tower body is very long in order to meet the use height, the disassembly, the installation and the transportation are very inconvenient, and the transportation cost is increased by splitting each section of the tower body into a plurality of independent tower bodies.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a small tower crane mechanical telescopic tower body which is compact in structure, safe and stable.
The technical scheme is as follows: a telescopic tower body of a small tower type hoisting machine comprises an inner tower body, a middle tower body and an outer tower body, wherein the inner tower body can move telescopically in the middle tower body, the middle tower body can move telescopically in the outer tower body, four groups of mutually vertical upper idler wheels are respectively arranged at four corners of the tops of the middle tower body and the outer tower body, and slide ways of the upper idler wheels are four vertical columns of the adjacent inner tower body; four lower idler wheels are respectively arranged at four corners of the bottoms of the inner tower body and the middle tower body, and the inner sides of the adjacent outer tower bodies are fixed by the inner slideways corresponding to the lower idler wheels. Thereby realized two adjacent tower body reliable and stable upper and lower slip through last depended wheel and lower depended wheel slip on corresponding slide to use the vice principle of rolling friction, reduced the wearing and tearing problem of great frictional force to main chord structure when the lifting motion of each structure of tower body inside. The tower body structure adopts a sleeve frame structure type distribution, a hydraulic system is utilized to control a hydraulic oil cylinder with enough strength and rigidity to be used as main power for the up-and-down movement of the tower body, and the hydraulic control is safe and stable, adjustable in speed, flexible in control, convenient and fast.
Preferably, in order to improve the reliability of the tower body, the tower body is fixed by adopting a positioning and locking mode after the tower body extends out, two positioning devices capable of being turned over are respectively arranged on two opposite sides of the tops of the middle tower body and the outer tower body, locking devices with the same number are correspondingly arranged below the positioning devices, locking lug plates are arranged at the positions, corresponding to the locking devices of the adjacent outer side tower body, of the bottoms of the inner tower body and the middle tower body, and the locking devices and the locking lug plates are locked by pin shafts; and a positioning cross beam is arranged above the locking lug plates on the inner tower body and the middle tower body, and the position of the positioning cross beam corresponds to that of the positioning device.
Has the advantages that: the three-dimensional adjustable lifting height adjusting device has the advantages of compact structure, reasonable spatial arrangement, small occupied area and flexible operation, can quickly, safely and stably adjust the three lifting heights of the tower body, and is suitable for working environments with different lifting heights; this telescopic tower body structure has reduced the installation of ordinary tower crane hoisting height greatly, has dismantled and the work load of transportation makes this tower machine under restricted construction site and transportation road conditions, has higher work efficiency, has significantly reduced the demand to extra supplementary erection equipment.
Drawings
FIG. 1 is a schematic view of the tower of the present invention with the tower fully extended;
FIG. 2 is an enlarged view of a portion of the upper idler mounted on the tower body in accordance with the present invention;
FIG. 3 is an enlarged view of a portion of the lower idler wheel of the present invention mounted on the tower.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, 2 and 3, a telescopic tower body of a small tower crane comprises an inner tower body 1, a middle tower body 2 and an outer tower body 3, wherein the inner tower body 1 can move telescopically inside the middle tower body 2, the middle tower body 2 can move telescopically inside the outer tower body 3, four corners of the tops of the middle tower body 2 and the outer tower body 3 are respectively provided with four groups of upper idler wheels 4 which are perpendicular to each other, and slideways of the upper idler wheels 4 are four upright posts of the adjacent inner tower bodies; four corners at the bottom of the inner tower body 1 and the middle tower body 2 are respectively provided with four lower idler wheels 5, and inner slideways 6 corresponding to the lower idler wheels 5 are fixed on the inner sides of the adjacent outer tower bodies. Thereby realized two adjacent tower body reliable and stable upper and lower slip on corresponding slide through last depended wheel 4 and lower depended wheel 5 to use the vice principle of rolling friction, reduced the wearing and tearing problem of great frictional force to main chord structure when the lifting motion of each structure of tower body inside. The tower body structure adopts a sleeve frame structure type distribution, a hydraulic system is utilized to control a hydraulic oil cylinder with enough strength and rigidity to be used as main power for the up-and-down movement of the tower body, and the hydraulic control is safe and stable, adjustable in speed, flexible in control, convenient, fast and quick.
As shown in fig. 2, in order to improve the reliability of the tower body, the tower body is fixed by positioning and locking after being extended, two positioning devices 7 capable of being turned over are respectively arranged on two opposite sides of the tops of the middle tower body 2 and the outer tower body 3, locking devices 8 with the same number are correspondingly arranged below the positioning devices 7, locking lug plates 9 are arranged at positions corresponding to the bottom of the inner tower body 1 and the middle tower body 2 and the adjacent outer tower body locking devices 8, and the locking devices 8 and the locking lug plates 9 are locked by pin shafts; and a positioning cross beam 10 is arranged above the locking lug plates 9 on the inner tower body 1 and the middle tower body 2, and the position of the positioning cross beam 10 corresponds to the positioning device 7.
The three-dimensional adjustable lifting height adjusting device has the advantages of compact structure, reasonable spatial arrangement, small occupied area and flexible operation, can quickly, safely and stably adjust the three lifting heights of the tower body, and is suitable for working environments with different lifting heights; this telescopic tower body structure has significantly reduced the installation of ordinary tower crane hoisting height, has dismantled and the work load of transportation makes this tower machine under restricted construction site and transportation road conditions, has higher work efficiency, and significantly reduced the demand to extra supplementary erection equipment.
Claims (2)
1. The utility model provides a telescopic body of small-size tower crane machinery, includes interior body (1), well body (2) and outer body (3), interior body (1) can concertina movement in well body (2) inside, well body (2) can concertina movement in outer body (3) inside, its characterized in that: four corners of the tops of the middle tower body (2) and the outer tower body (3) are respectively provided with four groups of mutually vertical upper leaning wheels (4), and slideways of the upper leaning wheels (4) are four upright posts of the adjacent inner tower body; four corners of the bottoms of the inner tower body (1) and the middle tower body (2) are respectively provided with four lower idler wheels (5), and the inner side of the adjacent outer tower body is fixed by the inner slide ways (6) corresponding to the lower idler wheels (5).
2. The telescopic tower body of small tower crane according to claim 1, wherein: well body of tower (2) and outer body of tower (3) top both sides are equipped with two positioner (7) that can overturn respectively relatively, the below correspondence of positioner (7) is equipped with locking device (8) that quantity equals, the position that interior body of tower (1) and well body of tower (2) bottom and adjacent outside body of tower locking device (8) correspond is equipped with locking otic placode (9), the top of locking otic placode (9) is equipped with location crossbeam (10) on interior body of tower (1) and well body of tower (2), the position of location crossbeam (10) is corresponding with positioner (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375850.4A CN111196571A (en) | 2018-11-19 | 2018-11-19 | Telescopic tower body of small tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375850.4A CN111196571A (en) | 2018-11-19 | 2018-11-19 | Telescopic tower body of small tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111196571A true CN111196571A (en) | 2020-05-26 |
Family
ID=70741284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811375850.4A Withdrawn CN111196571A (en) | 2018-11-19 | 2018-11-19 | Telescopic tower body of small tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111196571A (en) |
-
2018
- 2018-11-19 CN CN201811375850.4A patent/CN111196571A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200526 |