CN2820809Y - Screw telesopic crane - Google Patents
Screw telesopic crane Download PDFInfo
- Publication number
- CN2820809Y CN2820809Y CN 200620006062 CN200620006062U CN2820809Y CN 2820809 Y CN2820809 Y CN 2820809Y CN 200620006062 CN200620006062 CN 200620006062 CN 200620006062 U CN200620006062 U CN 200620006062U CN 2820809 Y CN2820809 Y CN 2820809Y
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- CN
- China
- Prior art keywords
- telescopic boom
- arm
- screw
- pulley
- big arm
- 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 discloses a screw telescopic crane which comprises a big arm hinged with a bottom bracket and a telescopic arm sheathed in the big arm. The back part of the big arm is provided with a screw drive device on which a screw threaded in the telescopic arm is in transmission connection, the first level telescopic arm of the telescopic arm is provided with a screw sleeve, and the screw is threaded in the screw sleeve and is in drive match with the screw sleeve; the screw mechanism has the self locking and spacing functions so as to ensure that the screw and the first level telescopic arm are coaxially telescoped with good telescopic stability, the arm extending and retracting motion of the second level and the rear telescopic arms can be finished through being driven by an arm extending rope, an arm retracting rope and a pulley wheel. The utility model has simple product structure, and stronger operating reliability of the complete crane on the basis of the reliability of a screw mechanism.
Description
Technical field
The utility model belongs to the weight-lifting equipment technical field, particularly a kind of leading screw telehoist that uses on the various motor-vehicle chassiies that is fixed in.
Background technology
Early stage hoisting crane elevator machinery and vehicle are made one, can only be used to lift goods, can't dismantle.And this hoisting crane tonnage is big, and required work-yard is big, is unsuitable for using in less place.For addressing the above problem, CN2604425 discloses a kind of fully automatic hydraulic hoisting crane, this machine comprises underframe, be provided with the rotating disk gear ring above the underframe, be provided with rotating disk in the middle of the rotating disk, plate rail is installed above the rotating disk, and the hydraulic motor output shaft of being located on the plate rail connects with disk gear, disk gear and the engagement of rotating disk gear ring; Last plate rail is provided with staking out, and the staking out upper end is connected with big arm rear end axle, and big arm middle part connects with elevating ram, and the telescopic boom front end that is installed in the big arm is connected with suspension hook by assembly pulley, and the semi-girder rope is connected with rope sheave with the lifting rope, and rope sheave connects with HM Hydraulic Motor; The power wheel of being located on the underframe connects with HM Hydraulic Motor by oil pump, and last plate rail is provided with the multiway valve that is connected the modulated pressure motor with oil pump, and last plate rail rear portion is provided with weight box, and HM Hydraulic Motor connects with disk gear, rope sheave by reductor.Lifting rope rope sheave is installed on the plate rail rear portion, and semi-girder rope rope sheave is located at big arm rear side; Be provided with two joint telescopic booms, two arms, three arms in the big arm, big arm head portion one side and three arm afterbodys respectively are provided with a pulley, two arm afterbodys, one side is provided with two pulleys up and down, semi-girder rope head sheave before big arm enters the assembly pulley of the upper and lower setting of two arm afterbodys, one side, pulley below the big arm front end again, enter two arm afterbody pulleys, semi-girder rope one end is fixed on the rope sheave, the other end is fixed in below the big arm front end.Do not establish back arm mechanism on this hoisting crane, telescopic boom by the deadweight retraction, uses inconvenience fully; This hoisting crane semi-girder rope has only one, if fracture in the use not only can't be worked, and may be caused industrial accident; The flexible of these hoisting crane two arms, three arms all realized by the semi-girder rope, needs HM Hydraulic Motor, whim and the pulley of a cover band reductor to be used, and structure is complicated, and reliability is relatively poor.
The utility model content
The utility model purpose is to provide a kind of leading screw telehoist of being convenient to stretch
The technical solution of the utility model is: a kind of leading screw telehoist, comprise with the big arm of underframe pivotally attached and be set in wherein telescopic boom, the rear portion of described big arm is equipped with lead-screw driving device, be connected with the leading screw that navigates within the telescopic boom on the output shaft of lead-screw driving device, in the one-level telescopic boom in the telescopic boom silk braid is installed, leading screw penetrates silk braid and cooperates with its transmission.
Described lead-screw driving device is a HM Hydraulic Motor.
Be set with secondary telescopic boom in the described one-level telescopic boom, big arm and telescopic boom at different levels connect by semi-girder rope, time arm rope and pulley, the semi-girder rope that one end is fixed in big arm front end is walked around the pulley that is installed on one-level telescopic boom upper front end, and the other end is fixedly connected on secondary telescopic boom rear end; The arm rope that returns that one end is fixed in big arm front end is walked around the pulley that is installed on big arm front end, and the pulley of one-level telescopic boom rear end, and the other end is fixed in secondary telescopic boom rear end.
Described leading screw navigates within one-level telescopic boom and the secondary telescopic boom, and the free end of leading screw is provided with the pulley that can slide on the inwall of secondary telescopic boom.
Described pulley is for being connected in two pulleys of leading screw below side by side.
In the utility model, telescopic boom can be one-level or multistage, and the semi-girder of one-level telescopic boom, time arm action are the flexible drives by leading screw, because screw mechanism itself has the self-locking limit function, can guarantee that leading screw and one-level telescopic boom are coaxial flexible, flexible good stability; The semi-girder of secondary and later telescopic boom, time arm action can be driven by semi-girder rope, time arm rope and pulley and finish, the hoisting crane of comparing patent CN2604425 reduces HM Hydraulic Motor, whim and the pulley of a cover band reductor, product structure is simplified, based on the reliability of screw mechanism, has stronger complete machine functional reliability.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is telescopic boom of the present utility model and wherein leading screw telescoping mechanism, semi-girder rope, return the layout scheme drawing of arm rope;
Fig. 3 is the structural representation of bonded assembly pulley under the leading screw.
The specific embodiment
As shown in Figure 1, 2, hoisting crane of the present utility model comprises four jiaos of underframe 2 that are provided with hydraulic ram 1, be provided with rotating disk 3 above the underframe 2, plate rail 4 is installed above the rotating disk 3, last plate rail 4 is provided with staking out 5, and staking out 5 upper ends are hinged with big arm 6, is provided with one-level telescopic boom 7, secondary telescopic boom 8 in the big arm 6, big arm 6 middle parts connect with elevating ram 9, and elevating ram 9 lower ends and last plate rail 4 are hinged.The rope sheave 11 of lifting rope 10 is installed on plate rail 4 rear portions, and it is in transmission connection by reductor 12 and motor 13.Lifting rope 10 is walked around the holder rope roller 14,15 that is arranged on the big arm 6 and is connected with the set assembly pulley 16 of secondary telescopic boom 8 heads, and assembly pulley 16 is connected with suspension hook 17.The rear portion of big arm 6 is equipped with HM Hydraulic Motor 18, HM Hydraulic Motor 18 is connected with oil pump, be connected with the leading screw 19 that navigates within one-level telescopic boom 7 and the secondary telescopic boom 8 on the transmission shaft of HM Hydraulic Motor 18, silk braid 20 is installed in the one-level telescopic boom 7, leading screw 19 penetrates silk braid 20 and cooperates with its transmission, the free end of leading screw 19 is provided with the pulley 26 that can slide on the inwall of secondary telescopic boom 8, pulley 26 has two, is connected the free-ended below of leading screw 19 side by side.
The semi-girder rope 21 that one end is fixed in big arm 6 upper front end is walked around the pulley 22 that is installed on one-level telescopic boom 7 upper front end, and the other end is fixedly connected on secondary telescopic boom 8 rear ends; The arm rope 23 that returns that one end is fixed in big arm 6 upper front end is walked around the pulley 24 that is installed on big arm upper front end, and the pulley 25 of one-level telescopic boom 7 upper rear end, and the other end is fixed in secondary telescopic boom 8 rear ends.
Claims (5)
1, a kind of leading screw telehoist, comprise with the big arm of underframe pivotally attached and be set in wherein telescopic boom, it is characterized in that: the rear portion of described big arm is equipped with lead-screw driving device, be connected with the leading screw that navigates within the telescopic boom on the output shaft of lead-screw driving device, in the one-level telescopic boom in the telescopic boom silk braid is installed, leading screw penetrates silk braid and cooperates with its transmission.
2, hoisting crane as claimed in claim 1 is characterized in that: described lead-screw driving device is a HM Hydraulic Motor.
3, hoisting crane as claimed in claim 1 or 2, it is characterized in that: be set with secondary telescopic boom in the described one-level telescopic boom, big arm and telescopic boom at different levels connect by semi-girder rope, time arm rope and pulley, the semi-girder rope that one end is fixed in big arm front end is walked around the pulley that is installed on one-level telescopic boom upper front end, and the other end is fixedly connected on secondary telescopic boom rear end; The arm rope that returns that one end is fixed in big arm front end is walked around the pulley that is installed on big arm front end, and the pulley of one-level telescopic boom rear end, and the other end is fixed in secondary telescopic boom rear end.
4, hoisting crane as claimed in claim 3 is characterized in that: described leading screw navigates within one-level telescopic boom and the secondary telescopic boom, and the free end of leading screw is provided with the pulley that can slide on the inwall of secondary telescopic boom.
5, hoisting crane as claimed in claim 4 is characterized in that: described pulley is for being connected in two pulleys of leading screw below side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620006062 CN2820809Y (en) | 2006-03-03 | 2006-03-10 | Screw telesopic crane |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620031277 | 2006-03-03 | ||
| CN200620031277.1 | 2006-03-03 | ||
| CN 200620006062 CN2820809Y (en) | 2006-03-03 | 2006-03-10 | Screw telesopic crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2820809Y true CN2820809Y (en) | 2006-09-27 |
Family
ID=37017359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620006062 Expired - Fee Related CN2820809Y (en) | 2006-03-03 | 2006-03-10 | Screw telesopic crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2820809Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674163A (en) * | 2012-05-22 | 2012-09-19 | 王辉 | Small multi-purpose crane |
| CN103287991A (en) * | 2013-06-17 | 2013-09-11 | 南通四建装饰工程有限公司 | Telescopic two-dimensional full-automatic minitype cantilever crane |
| CN104444861A (en) * | 2014-12-10 | 2015-03-25 | 郑敏 | Speed-adjustable telescopic arm |
| CN104727360A (en) * | 2015-02-06 | 2015-06-24 | 开封大学 | Wrecker |
| CN104801509A (en) * | 2015-05-05 | 2015-07-29 | 国家电网公司 | Electrified water-washing operation device for electrical equipment |
| CN107055351A (en) * | 2016-11-30 | 2017-08-18 | 内蒙动力机械研究所 | A kind of telescopic arm |
| CN107902568A (en) * | 2017-12-25 | 2018-04-13 | 浙江邦博机械有限公司 | A kind of cantilever crane |
| CN107915156A (en) * | 2017-12-25 | 2018-04-17 | 浙江邦博机械有限公司 | A kind of cantilever crane |
| CN107934797A (en) * | 2017-12-25 | 2018-04-20 | 浙江邦博机械有限公司 | A kind of cantilever design of cantilever crane |
| CN110905895A (en) * | 2019-11-27 | 2020-03-24 | 西安电子科技大学 | Electric telescopic rod based on rope traction |
-
2006
- 2006-03-10 CN CN 200620006062 patent/CN2820809Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674163A (en) * | 2012-05-22 | 2012-09-19 | 王辉 | Small multi-purpose crane |
| CN102674163B (en) * | 2012-05-22 | 2013-12-25 | 王辉 | Small multi-purpose crane |
| CN103287991A (en) * | 2013-06-17 | 2013-09-11 | 南通四建装饰工程有限公司 | Telescopic two-dimensional full-automatic minitype cantilever crane |
| CN103287991B (en) * | 2013-06-17 | 2015-06-10 | 南通四建幕墙工程有限公司 | Telescopic two-dimensional full-automatic minitype cantilever crane |
| CN104444861A (en) * | 2014-12-10 | 2015-03-25 | 郑敏 | Speed-adjustable telescopic arm |
| CN104727360A (en) * | 2015-02-06 | 2015-06-24 | 开封大学 | Wrecker |
| CN104801509A (en) * | 2015-05-05 | 2015-07-29 | 国家电网公司 | Electrified water-washing operation device for electrical equipment |
| CN107055351A (en) * | 2016-11-30 | 2017-08-18 | 内蒙动力机械研究所 | A kind of telescopic arm |
| CN107902568A (en) * | 2017-12-25 | 2018-04-13 | 浙江邦博机械有限公司 | A kind of cantilever crane |
| CN107915156A (en) * | 2017-12-25 | 2018-04-17 | 浙江邦博机械有限公司 | A kind of cantilever crane |
| CN107934797A (en) * | 2017-12-25 | 2018-04-20 | 浙江邦博机械有限公司 | A kind of cantilever design of cantilever crane |
| CN110905895A (en) * | 2019-11-27 | 2020-03-24 | 西安电子科技大学 | Electric telescopic rod based on rope traction |
| CN110905895B (en) * | 2019-11-27 | 2021-03-23 | 西安电子科技大学 | Electric telescopic rod based on rope traction |
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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 |