CN201419976Y - Electric retraction device for support leg beam of crane - Google Patents
Electric retraction device for support leg beam of crane Download PDFInfo
- Publication number
- CN201419976Y CN201419976Y CN200920064849XU CN200920064849U CN201419976Y CN 201419976 Y CN201419976 Y CN 201419976Y CN 200920064849X U CN200920064849X U CN 200920064849XU CN 200920064849 U CN200920064849 U CN 200920064849U CN 201419976 Y CN201419976 Y CN 201419976Y
- Authority
- CN
- China
- Prior art keywords
- supporting leg
- leg beam
- nut
- bearing seat
- support leg
- 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 an electric retraction device for a support leg beam of a crane. The electric retraction device comprises a frame beam, the support leg beam, a direct current motor arranged at the tail end of the frame beam and a gear shift mechanism. The support leg beam is inserted into the frame beam. The frame beam is provided with a first bearing seat and a second bearing seat inparallel from the rear end to the front end. A bearing portion of the second bearing seat extends into the support leg beam from a waist-shaped hole of the support leg beam. A screw rod is arranged between the first bearing seat and the second bearing seat. One end of the screw rod, which is arranged on the first bearing seat, is connected with the gear shift mechanism, and the other end thereofpenetrates through a support leg beam end panel arranged at the tail end of the support leg beam and is then arranged on the second bearing seat. A nut is arranged on the screw rod and close to the support leg beam end panel. The support leg beam end panel is provided with a fixing device for fixing the nut. The utility model has the advantages of simple structure, safe and reliable operation, convenient installation and operation, low cost and the like and is applicable for wheel-type cranes with H-shaped support legs.
Description
Technical field
The utility model relates to a kind of elevator machinery, and particularly a kind of hoisting crane supporting leg beam electrical retractor is applicable to the wheel crane that adopts H type supporting leg.
Background technology
For increasing the load-carrying ability of rubber tired crane when the lifting work, hoisting crane is provided with supporting leg.Supporting leg requires firm reliable, and is flexible convenient, regains overhanging support ground during work in motion.Be H shape after H type supporting leg is overhanging, out reach is big, and is good to the ground comformability, is easy to leveling, extensively adopts on hoisting crane.
The supporting leg of rubber tired crane must be made telescopic.The flexible manpower that all relies at old-fashioned hoisting crane upper supporting leg carries out very inconvenience.In the hydraulic lift in modern times, the flexible of supporting leg also is hydraulicdriven.For H type supporting leg, each supporting leg needs two hydraulic actuating cylinders, and it is flexible that the hydraulic actuating cylinder of a level is used for the supporting leg beam, and a vertical hydraulic actuating cylinder is used for supporting.
Working resistance when on the one hand relatively hoisting operation supporting leg beam is flexible is also little, and flexible operation occurs over just the preparation and the ending phase of hoisting operation, and during hoisting operation, telescopic section does not need work, and the retractor device frequency of utilization is not high; The manufacturing of hydraulic efficiency gear and maintenance cost are higher on the other hand.Therefore, the hydraulic telescopic device that adopts electrical retractor to replace generally adopting at present is fully feasible, it is advantageous that and can effectively reduce production costs and product price under the prerequisite that guarantees work effect and efficient, improves the competitiveness of product in market.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art and a kind of compact conformation is provided, and cost is low, simple to operate, through performance is good, the hoisting crane supporting leg beam electrical retractor of diverse in function.
The purpose of this utility model is achieved by following technical proposals:
A kind of hoisting crane supporting leg beam electrical retractor, comprise cross member of frame, the supporting leg beam, be arranged on the DC machine and the speed-changing mechanism of cross member of frame tail end, described supporting leg beam is inserted in the described cross member of frame, from the rear end to the front end, be provided with first of parallel installation in the described cross member of frame, second bearing seat, the bearing portions of described second bearing seat extend in the described supporting leg beam in the waist-shaped hole of described supporting leg beam, described first, between second bearing seat screw mandrel is installed, described screw mandrel is installed in described primary shaft bearing end and is connected with speed-changing mechanism, the supporting leg beam-ends panel that the other end passes the setting of described supporting leg tail beam is installed on second bearing seat, is provided with nut near described supporting leg beam-ends panel place on the described screw mandrel.
In the utility model, described anchor fitting is that the nut installation room bigger slightly than described nut constitutes, and described nut is placed in the described nut installation room.
In the utility model, described nut is a square nut.
In the utility model, near the exit sliding wheel is installed in the described cross member of frame.
Owing to adopt above-mentioned scheme, the utlity model has following advantage:
(1) is applicable to the wheel crane of H type supporting leg, adopts electrical retractor to replace the hydraulic telescopic device that generally adopts at present, under the prerequisite that guarantees work effect and efficient, reduced productive costs.
(2) adopt DC machine as actuating device, can directly utilize the vehicular power-bottle power supply, easy for installation, cost is lower.
(3) adopt feed screw nut's auxiliary driving to realize supporting leg beam fore and aft motion, simple in structure, reliable operation.
(4) adopt square nut and horizontal pushing-type mounting means, solved the problem that cross member of frame and the relative motion of supporting leg crossbeam may cause the screw mandrel fracture.
(5) adopt sliding wheel to reduce the working resistance of fore and aft motion effectively.
(6) cooresponding electric control system has guaranteed comfort feature, safety and the reliability of operation.
In sum, described utility model, advantage such as that hoisting crane supporting leg beam electrical retractor has is simple in structure, safe and reliable, fitting operation convenient, cost is lower is applicable to the wheel crane that adopts H type supporting leg.
Description of drawings
Fig. 1 structural representation of the present utility model.
Fig. 2 cutaway view of the present utility model.
In the accompanying drawing 1,2,1---big gear wheel; 2---miniature gears; 3---DC machine; 4---the primary shaft bearing; 5---screw mandrel; 6---cross member of frame; 7---the nut installation room; 8---nut; 9---supporting leg beam-ends panel; 10---the supporting leg beam; 11---second bearing seat; 12---waist-shaped hole; 13---sliding wheel.
The specific embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of hoisting crane supporting leg beam electrical retractor in detail.
As Fig. 1, shown in 2, a kind of hoisting crane supporting leg beam electrical retractor, comprise cross member of frame 6, supporting leg beam 10, be arranged on the DC machine 3 and the speed-changing mechanism of cross member of frame 6 tail ends, described supporting leg beam 10 is inserted in the described cross member of frame 6, from the rear end to the front end, be provided with first of parallel installation in the described cross member of frame 6, second bearing seat 4,11, the bearing portions of described second bearing seat 11 extend in the described supporting leg beam 10 in the waist-shaped hole 12 of described supporting leg beam 10, described first, second bearing seat 4, screw mandrel 5 is installed between 11, described screw mandrel 5 is installed in described primary shaft bearing 4 ends and is connected with speed-changing mechanism, the supporting leg beam-ends panel 9 that the other end passes described supporting leg beam 10 tail end settings is installed on second bearing seat 11, be provided with nut 8 near described supporting leg beam-ends panel 9 places on the described screw mandrel 5, described supporting leg beam-ends panel 9 is provided with the anchor fitting of fixing described nut 8.
In the utility model, described anchor fitting is that the nut installation room 7 bigger slightly than described nut 8 constitutes, and described nut 8 is placed in the described nut installation room 7.
In the utility model, described nut 8 is a square nut.
In the utility model, near the exit sliding wheel 13 is installed in the described cross member of frame 6.
Open a waist shaped hole 12 at supporting leg beam 10 end faces, so that second bearing seat 11 is installed.Sliding wheel 13 is installed in chassis frame below near the exit, so that reduce supporting leg beam 10 working resistance when flexible.
During operation, press switch, DC machine 3 is just being changeed, and drives screw mandrel 5 and rotates, and the supporting leg beam stretches out.Off switch gets final product in the time of need stopping.
Claims (4)
1, hoisting crane supporting leg beam electrical retractor, comprise cross member of frame (6), supporting leg beam (10), be arranged on the DC machine (3) and the speed-changing mechanism of cross member of frame (6) tail end, it is characterized in that: described supporting leg beam (10) is inserted in the described cross member of frame (6), from the rear end to the front end, be provided with first of parallel installation in the described cross member of frame (6), second bearing seat (4), (11), the bearing portions of described second bearing seat (11) extend in the described supporting leg beam (10) in the waist-shaped hole (12) of described supporting leg beam (10), described first, second bearing seat (4), screw mandrel (5) is installed (11), described screw mandrel (5) is installed in described primary shaft bearing (4) end and is connected with speed-changing mechanism, the supporting leg beam-ends panel (9) that the other end passes the setting of described supporting leg beam (10) tail end is installed on second bearing seat (11), described screw mandrel (5) is gone up near described supporting leg beam-ends panel (9) and is located to be provided with nut (8), and described supporting leg beam-ends panel (9) is provided with the anchor fitting of fixing described nut (8).
2, hoisting crane supporting leg beam electrical retractor according to claim 1 is characterized in that: described anchor fitting constitutes for the nut installation room (7) bigger slightly than described nut (8), and described nut (8) is placed in the described nut installation room (7).
3, hoisting crane supporting leg beam electrical retractor according to claim 1 and 2, it is characterized in that: described nut (8) is a square nut.
4, hoisting crane supporting leg beam electrical retractor according to claim 1 and 2 is characterized in that: near the exit sliding wheel (13) is installed in the described cross member of frame (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920064849XU CN201419976Y (en) | 2009-06-19 | 2009-06-19 | Electric retraction device for support leg beam of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920064849XU CN201419976Y (en) | 2009-06-19 | 2009-06-19 | Electric retraction device for support leg beam of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201419976Y true CN201419976Y (en) | 2010-03-10 |
Family
ID=41806629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920064849XU Expired - Fee Related CN201419976Y (en) | 2009-06-19 | 2009-06-19 | Electric retraction device for support leg beam of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201419976Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443947A (en) * | 2016-01-11 | 2016-03-30 | 西华大学 | Composite telescopic two-stage supporting leg |
| CN108297613A (en) * | 2018-01-25 | 2018-07-20 | 安徽港泰机械制造集团有限公司 | A kind of rail-road car wheel with antiskid function |
| CN108297613B (en) * | 2018-01-25 | 2024-04-30 | 安徽港泰机械制造集团有限公司 | Road and railway dual-purpose wheel with anti-skid function |
-
2009
- 2009-06-19 CN CN200920064849XU patent/CN201419976Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443947A (en) * | 2016-01-11 | 2016-03-30 | 西华大学 | Composite telescopic two-stage supporting leg |
| CN108297613A (en) * | 2018-01-25 | 2018-07-20 | 安徽港泰机械制造集团有限公司 | A kind of rail-road car wheel with antiskid function |
| CN108297613B (en) * | 2018-01-25 | 2024-04-30 | 安徽港泰机械制造集团有限公司 | Road and railway dual-purpose wheel with anti-skid function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HU'NAN PENGXIANG HEAVY MACHINERY CO., LTD. Free format text: FORMER NAME: HUNAN PENGXIANG FRAME CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Yongan road 410323 Yongan town Hunan city of Liuyang province Hunan Pengxiang car frame Co. Ltd. Patentee after: Hunan Pengxiang Heavy Machinery Co., Ltd. Address before: Yongan road 410323 Yongan town Hunan city of Liuyang province Hunan Pengxiang car frame Co. Ltd. Patentee before: Hunan Pengxiang Frame Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: HUNAN PENGXIANG HEAVY MACHINERY CO., LTD. Free format text: FORMER NAME: HU'NAN PENGXIANG HEAVY MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Yongan road 410323 Yongan town Hunan city of Liuyang province Hunan Pengxiang car frame Co. Ltd. Patentee after: Hunan Pengxiang Star Machinery Co Ltd Address before: Yongan road 410323 Yongan town Hunan city of Liuyang province Hunan Pengxiang car frame Co. Ltd. Patentee before: Hunan Pengxiang Heavy Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20170619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |