CN209210252U - A kind of luffing range of cantilever support control mechanism - Google Patents
A kind of luffing range of cantilever support control mechanism Download PDFInfo
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- CN209210252U CN209210252U CN201822019157.5U CN201822019157U CN209210252U CN 209210252 U CN209210252 U CN 209210252U CN 201822019157 U CN201822019157 U CN 201822019157U CN 209210252 U CN209210252 U CN 209210252U
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- fixed
- straight line
- control mechanism
- support control
- elevating mechanism
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Abstract
The utility model belongs to technical field of engineering machinery, more particularly to a kind of luffing range of cantilever support control mechanism, cantilever crane is sleeved in load-bearing axle, the both ends of load-bearing axle are mounted on straight line elevating mechanism, and straight line elevating mechanism is fixed on outer housing, and straight line elevating mechanism is driven by servo motor I by transmission parts, straight line elevating mechanism and servo motor I are installed on upper backup pad, upper backup pad is hingedly fixed with lower supporting plate, and lower supporting plate is fixed on pivoting support, and pivoting support is fixed on carriage.The application changes traditional use hydraulic system and carries out luffing control, using the structure of more accurate Serve Motor Control, pass through the mutual movement relation between control unit during the work time, it can be realized cantilever crane up and down and front-rear position be mobile, luffing position precision control in arm end is high, and the application can satisfy the control of overlength cantilever crane and require.
Description
Technical field
The utility model belongs to technical field of engineering machinery, and in particular to a kind of luffing range of cantilever support control mechanism.
Background technique
Currently, arm support mechanism luffing controls cantilever crane structure type with hydraulic cylinder.Cylinder system needs hydraulic system branch
It holds, it is at high cost；Cylinder structure is to space requirement height, difficult arrangement；Cylinder structure cannot achieve the requirement of cantilever crane limited length system
Luffing control to overlength cantilever crane；Oil-cylinder variable amplitude is moved forward and backward without control, can not form closed-loop control, arm end position precision can not
Guarantee.
Summary of the invention
Place, the utility model provide a kind of luffing range of cantilever support control mechanism in order to overcome the above-mentioned deficiencies of the prior art.
The utility model is achieved by the following technical solution: a kind of luffing range of cantilever support control mechanism, cantilever crane, which is sleeved on, to be held
On solid axle, the both ends of load-bearing axle are mounted on straight line elevating mechanism, and straight line elevating mechanism is fixed on outer housing, straight line elevator
Structure is driven by servo motor I by transmission parts, and straight line elevating mechanism and servo motor I are installed on upper backup pad, upper branch
Fagging is hingedly fixed with lower supporting plate, and lower supporting plate is fixed on pivoting support, and pivoting support is fixed on carriage.
Further, the straight line elevating mechanism is threaded rod, and the both ends of load-bearing axle are respectively fixed with nut seat, nut
Seat is sequentially connected with threaded rod.
Further, the lower part of the threaded rod is connected with speed reducer, and servo motor I is connect with speed reducer drive；
The top of threaded rod is fixed on outer housing.
Further, the side of the nut seat is equipped with connecting rod, and the end of connecting rod is equipped with idler wheel, idler wheel and outer housing
Side wall is in contact.
Further, three sides of the nut seat are equipped with the connecting rod with idler wheel, the idler wheel point in three directions
Do not match with three side walls of outer housing.
Further, the straight line elevating mechanism is sprocket wheel chain transmission mechanism, the both ends difference of the load-bearing axle
It is fixedly connected by connector with chain.
Further, the upper backup pad is equipped with the otic placode matched with lower supporting plate, and the otic placode of upper backup pad is under
The otic placode of support plate is fixedly connected by pin shaft.
Further, the carriage includes being located at the sliding block of the lower section of pivoting support and being mounted on frame body
Sliding rail, sliding block are installed on the slide rail, and power device driving sliding block is moved along sliding rail.
Further, the pivoting support lower surface is fixed with support plate, and sliding block is fixed on support plate lower surface；
It is additionally provided with rack gear on the frame body of installation sliding rail, supports and servo motor II, servo motor II and gear drive is installed on plate
Connection, wheel and rack are meshed.
Further, the rack gear is mounted on the middle position of two slideways of sliding rail.
The beneficial effects of the utility model are: the application, which changes traditional use hydraulic system, carries out luffing control, adopt
It can during the work time by the mutual movement relation between control unit with the structure of more accurate Serve Motor Control
It realizes cantilever crane up and down and front-rear position is mobile, luffing position precision control in arm end is high, and the application can satisfy overlength cantilever crane control
System requires.
Detailed description of the invention
Fig. 1 is the structural front view of the utility model；
Fig. 2 is the left view of Fig. 1；
In figure, 1, cantilever crane, 2, load-bearing axle, 3, servo motor I, 4, nut seat, 5, pivoting support, 6, rack gear, 7, sliding rail, 8,
Servo motor II, 9, speed reducer, 10, threaded rod, 11, upper backup pad, 12, lower supporting plate, 13, support plate, 14, gear, 15,
Outer housing, 16, idler wheel.
Specific embodiment
Below according to drawings and examples, the present invention will be further described.
As depicted in figs. 1 and 2, a kind of luffing range of cantilever support control mechanism, cantilever crane 1 are sleeved in load-bearing axle 2, and the two of load-bearing axle 2
End is respectively fixed with nut seat 4, and nut seat 4 and the transmission connection of threaded rod 10 constitute ball-screw transmission mechanism, threaded rod 10
Upper end is fixed on the top of outer housing 15, and outer housing 15 is cuboid structure, and outer housing 15 is fixed on upper backup pad 11, and will
Inside it, the lower end of threaded rod 10 is connected the corresponding suit of threaded rod 10 with speed reducer 9, servo motor I 3 and speed reducer
9 transmission connections, servo motor I 3 drive speed reducer 9 to rotate, and speed reducer 9 drives threaded rod 10 to rotate, and nut seat 4 then can be along
Threaded rod 10 moves in a straight line, and realizes the up and down motion of cantilever crane 1.Servo motor I 3 and speed reducer 9 are fixedly mounted on support
On plate 11, upper backup pad 11 and lower supporting plate 12 are hingedly fixed, and lower supporting plate 12 is fixed on pivoting support 5, and pivoting support 5 is solid
It is scheduled on carriage, the rotation of pivoting support 5 guarantees that the front-rear position relationship between threaded rod 10 and cantilever crane 1 is constant, guarantees
The freedom degree moved forward and backward.Carriage includes the sliding rail for being located at the sliding block of the lower section of pivoting support 5 and being mounted on frame body
7, sliding block is mounted on sliding rail 7, and further, sliding block is fixed on support 13 lower surface of plate, and plate 13 is supported to be fixed on back
Turn the lower surface of bearing 5；It is additionally provided with rack gear 6 on the frame body of installation sliding rail 7, supports and servo motor II 8 is installed on plate 13,
Servo motor II 8 and gear 14 are sequentially connected, and gear 14 is meshed with rack gear 6.Servo motor II 8 control rack-and-pinion move into
And moved with movable slider along the direction of sliding rail 7, realize moving forward and backward for cantilever crane 1.
As the improvement of the present embodiment, as depicted in figs. 1 and 2, the side of the nut seat 4 is equipped with connecting rod, connecting rod
End is equipped with idler wheel 16, and idler wheel 16 is in contact with the side wall of outer housing 15, adds idler wheel 16 and passes the power from cantilever crane 1 is born
It is delivered on outer housing 15, and carries out elevating movement for auxiliary nut seat 4.
Further, three sides of the nut seat 4 are equipped with the connecting rod with idler wheel 16, the rolling in three directions
Wheel 16 matches with 15 3 side walls of outer housing respectively, be whole device stress more evenly.
As the improvement of the present embodiment, the upper backup pad 11 is equipped with the otic placode matched, upper branch with lower supporting plate 12
The otic placode of fagging 11 is fixedly connected with the otic placode of lower supporting plate 12 by pin shaft, wherein one end of cantilever crane 1 be it is hinged, work as cantilever crane
1 with nut seat 4 move up and down when, the hinge joint of 1 opposed end of cantilever crane does circular motion, and the circular motion of cantilever crane 1 will cause
Subtle bending occurs for threaded rod 10, and can hingedly bend in threaded rod 10 between upper backup pad 11 and lower supporting plate 12
When, threaded rod 10 can transfer force to upper backup pad 11, the guarantee and upper backup pad 11 can then rotate with respect to lower supporting plate 12
The straightness of threaded rod 10.
As the improvement of the present embodiment, the rack gear 6 is mounted on the middle position of two slideways of sliding rail 7, so that
Sliding block positioned at support 13 two sides of plate runs along sliding rail 7 more steady.
Another embodiment of the application, the straight line elevating mechanism can be sprocket wheel chain transmission mechanism, and described holds
The both ends of solid axle 2 pass through connector respectively and are fixedly connected with chain, and servo motor and sprocket wheel are sequentially connected and then drive chain fortune
It is dynamic to realize moving up and down for cantilever crane 1.
Servo motor drives the rotation of threaded rod by speed reducer, to drive the up and down motion of load-bearing axle, drives cantilever crane
It moves up and down.Servo motor is by driving rack-and-pinion, and control sliding block is moved forward and backward along sliding rail, thus before driving cantilever crane
After move.In amplitude changing process, the rotation of pin shaft hinge is so that the central axis of threaded rod is able to maintain linear state, pivoting support
Rotation guarantee that the front-rear position relationship between threaded rod and cantilever crane is constant, guarantee the freedom degree moved forward and backward.Luffing range of cantilever support control
Mechanism structure processed is simply not necessarily to hydraulic system, can be realized arm end position precision controlling during the work time, can satisfy overlength
The requirement of luffing range of cantilever support control.
Claims (10)
1. a kind of luffing range of cantilever support control mechanism, it is characterised in that: cantilever crane (1) is sleeved on load-bearing axle (2), and the two of load-bearing axle (2)
End is mounted on straight line elevating mechanism, and straight line elevating mechanism is fixed on outer housing (15), and straight line elevating mechanism is by servo motor I
(3) it is driven by transmission parts, straight line elevating mechanism and servo motor I (3) are installed on upper backup pad (11), upper backup pad
(11) hingedly fixed with lower supporting plate (12), lower supporting plate (12) is fixed on pivoting support (5), and pivoting support (5) is fixed on
On carriage.
2. a kind of luffing range of cantilever support control mechanism according to claim 1, it is characterised in that: the straight line elevating mechanism is
Threaded rod (10), the both ends of load-bearing axle (2) are respectively fixed with nut seat (4), and nut seat (4) and threaded rod (10) are sequentially connected.
3. a kind of luffing range of cantilever support control mechanism according to claim 2, it is characterised in that: under the threaded rod (10)
Portion is connected with speed reducer (9), and servo motor I (3) and speed reducer (9) are sequentially connected；The top of threaded rod (10) is fixed on outer
On shell (15).
4. a kind of luffing range of cantilever support control mechanism according to claim 2, it is characterised in that: the side of the nut seat (4)
Face is equipped with connecting rod, and the end of connecting rod is equipped with idler wheel (16), and idler wheel (16) is in contact with the side wall of outer housing (15).
5. a kind of luffing range of cantilever support control mechanism according to claim 4, it is characterised in that: the three of the nut seat (4)
A side is equipped with the connecting rod with idler wheel (16), the idler wheel (16) in three directions respectively with (15) three side wall phases of outer housing
Match.
6. a kind of luffing range of cantilever support control mechanism according to claim 1, it is characterised in that: the straight line elevating mechanism is
Sprocket wheel chain transmission mechanism, the both ends of the load-bearing axle (2) pass through connector respectively and are fixedly connected with chain.
7. a kind of luffing range of cantilever support control mechanism according to claim 1, it is characterised in that: the upper backup pad (11) with
Lower supporting plate (12) is equipped with the otic placode matched, and the otic placode of upper backup pad (11) and the otic placode of lower supporting plate (12) are solid by pin shaft
Fixed connection.
8. a kind of luffing range of cantilever support control mechanism described in any one according to claim 1~7, it is characterised in that: the cunning
Dynamic device includes the sliding rail (7) for being located at the sliding block of the lower section of pivoting support (5) and being mounted on frame body, and sliding block is mounted on sliding rail
(7) on, power device drives sliding block to move along sliding rail (7).
9. a kind of luffing range of cantilever support control mechanism according to claim 8, it is characterised in that: under the pivoting support (5)
Surface is fixed with support plate (13), and sliding block is fixed on support plate (13) lower surface；It is also set on the frame body of installation sliding rail (7)
Having rack gear (6), servo motor II (8) is installed in support plate (13), servo motor II (8) and gear (14) are sequentially connected,
Gear (14) is meshed with rack gear (6).
10. a kind of luffing range of cantilever support control mechanism according to claim 9, it is characterised in that: the rack gear (6) is mounted on
The middle position of two slideways of sliding rail (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822019157.5U CN209210252U (en) | 2018-12-04 | 2018-12-04 | A kind of luffing range of cantilever support control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822019157.5U CN209210252U (en) | 2018-12-04 | 2018-12-04 | A kind of luffing range of cantilever support control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209210252U true CN209210252U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822019157.5U Active CN209210252U (en) | 2018-12-04 | 2018-12-04 | A kind of luffing range of cantilever support control mechanism |
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| CN (1) | CN209210252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399471A (en) * | 2018-12-04 | 2019-03-01 | 徐州徐工随车起重机有限公司 | Luffing range of cantilever support control mechanism |
-
2018
- 2018-12-04 CN CN201822019157.5U patent/CN209210252U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399471A (en) * | 2018-12-04 | 2019-03-01 | 徐州徐工随车起重机有限公司 | Luffing range of cantilever support control mechanism |
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