CN208327205U - A kind of slewing limit structure of crane arm bracket - Google Patents
A kind of slewing limit structure of crane arm bracket Download PDFInfo
- Publication number
- CN208327205U CN208327205U CN201820753823.5U CN201820753823U CN208327205U CN 208327205 U CN208327205 U CN 208327205U CN 201820753823 U CN201820753823 U CN 201820753823U CN 208327205 U CN208327205 U CN 208327205U
- Authority
- CN
- China
- Prior art keywords
- crane
- fixed
- crane arm
- seat stand
- support
- 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 kind of slewing limit structures of crane arm bracket, including fixing seat, crane support and limited block, seat stand is installed above the fixing seat, and the inner upper of seat stand is provided with turntable, gag lever post is fixed with below the turntable, the crane support is fixed on the top of turntable, and fixed frame is installed above crane support, the limited block is fixed on the upper left side of fixed frame, the upper left side of the crane support is equipped with crane arm, the upper left side of the fixed frame is equipped with telescopic rod, and the top of telescopic rod is fixed with fixed block, the top of the fixed block is connected with crane arm, and crane arm is connected by transmission shaft with crane support, the inner upper of the limited block is provided with groove.Fixing seat in the slewing limit structure of the crane arm bracket plays the role of load-bearing, and the turntable inside seat stand rotates crane support with shaft.
Description
Technical field
The utility model relates to crane technical field, specially a kind of slewing limit structure of crane arm bracket.
Background technique
The slewing limit structure of crane arm bracket is that one kind of position-limiting action is played for the boom rotation of crane
Safety protection structure, crane refer to more movement hoisting machineries of vertical-lift in a certain range and horizontal carrying heavy goods, hang
Arm is the core component in lorry-mounted crane, is to hang to carry load-bearing structural member important in operation, many engineering machinery are worked
Cantilever crane is required in journey constantly to turn round to meet different working region demands, for equipment and the safety of personnel, needs to design
Corresponding rotary caging device.
There is no limiting device when existing some mechanical arm rotates, when rotation, can generate angular error, influence lifting
Meeting abrased gear when efficiency, excessively rotation, when the crane position-limit mechanism for making crane facility break down, and having often limits
The intensity of carrying is lower, dismounting and maintenance is also not easy to, for this purpose, it is proposed that a kind of slewing limit knot of crane arm bracket
Structure.
Utility model content
The purpose of this utility model is to provide a kind of slewing limit structures of crane arm bracket, to solve above-mentioned back
There is no limiting device when the existing some mechanical arm rotation proposed in scape technology, when rotation, can generate angular error, shadow
Meeting abrased gear when weight efficiency, excessively rotation of sounding, makes crane facility break down, and the crane position-limit mechanism having is often
The intensity carried when limit is lower, is also not easy to the problem of dismounting is with maintenance.
To achieve the above object, the utility model provides the following technical solutions: a kind of revolution limit of crane arm bracket
Bit architecture, including fixing seat, crane support and limited block are equipped with seat stand, and the inside of seat stand above the fixing seat
Top is provided with turntable, gag lever post is fixed with below the turntable, the crane support is fixed on the top of turntable, and rises
Fixed frame is installed, the limited block is fixed on the upper left side of fixed frame, a left side for the crane support above heavy-duty machine bracket
Top is equipped with crane arm, and the upper left side of the fixed frame is equipped with telescopic rod, and the top of telescopic rod is fixed with fixation
The top of block, the fixed block is connected with crane arm, and crane arm is connected by transmission shaft with crane support
It connecing, the inner upper of the limited block is provided with groove, and the inside of groove is equipped with movable axis, and the two of the movable axis
Side is fixed with screw, and the lower inside of the seat stand is provided with limiting slot, and the bosom of seat stand is equipped with shaft, the limit
The side of position slot is fixed with retention bead.
Preferably, the rounded hollow form structure of the seat stand, and the central axes of seat stand are overlapped with the central axes of fixing seat.
Preferably, the crane support is mutually perpendicular to seat stand, and crane support passes through turntable and shaft and seat stand
Constitute rotational structure.
Preferably, the crane arm constitutes bascule, and crane support by transmission shaft and crane support
Cylindrical structure.
Preferably, the diameter of the groove is greater than the diameter of movable axis, and constitutes between movable axis and telescopic rod vertical
Structure.
Preferably, the arc-shaped structure of the limiting slot, and the size of gag lever post matches with limiting slot inside dimension.
Compared with prior art, the utility model has the beneficial effects that the slewing limit structure of the crane arm bracket
In fixing seat play the role of load-bearing, the turntable inside seat stand rotates crane support with shaft, is convenient for
The size of horizontal carrying heavy goods, gag lever post matches with limiting slot inside dimension, and gag lever post is moved inside limiting slot
Dynamic, retention bead can play position-limiting action to the displacement of gag lever post, prevent the excessive rotation of crane support cause part with
The abrasion of gear, crane arm constitute bascule by transmission shaft and crane support so that crane arm can more than
Lower movement can play limited block in vertical-lift weight, the outside that fixed frame is mounted on crane support in a certain range
To fixed effect, telescopic rod and movable axis can be fixed up by screw, while be also convenient for limited block, telescopic rod and fixed block
Disassembly and maintenance, telescopic rod constitutes bascule with limited block by movable axis and telescopic rod hung with crane
The rotation of arm and rotate, simultaneous retractable bar has certain length limitation, can play restriction to the rotational angle of crane arm
Effect, limited block and fixed block the both ends of telescopic rod are fixed the limit strength for being able to ascend telescopic rod.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model limited block side structure schematic view；
Fig. 3 is the utility model seat stand inside top structural schematic diagram.
In figure: 1, fixing seat, 2, seat stand, 3, gag lever post, 4, crane support, 5, fixed frame, 6, limited block, 7, crane
Boom, 8, fixed block, 9, telescopic rod, 10, transmission shaft, 11, turntable, 12, groove, 13, movable axis, 14, screw, 15, limit
Slot, 16, shaft, 17, retention bead.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of slewing limit knot of crane arm bracket
Structure, including fixing seat 1, crane support 4 and limited block 6, the top of fixing seat 1 are equipped with seat stand 2, and on the inside of seat stand 2
Side is provided with turntable 11, the rounded hollow form structure of seat stand 2, and the central axes of seat stand 2 are overlapped with the central axes of fixing seat 1, seat
The rounded hollow form structure of platform 2 is convenient for its internal installation and setting turntable 11 and shaft 16, the central axes of seat stand 2 and fixing seat 1
Central axes be overlapped so that 1 load-bearing of fixing seat is uniform, the lower section of turntable 11 is fixed with gag lever post 3, and crane support 4, which is fixed on, to be turned
The top of platform 11, and the top of crane support 4 is equipped with fixed frame 5, crane support 4 is mutually perpendicular to seat stand 2, and lifting
Machine support 4 constitutes rotational structure by turntable 11 and shaft 16 and seat stand 2, and crane support 4 and seat stand 2 are mutually perpendicular to so that rising
The center of gravity of heavy-duty machine bracket 4 remains that steadily crane support 4 constitutes rotational structure by turntable 11 and shaft 16 and seat stand 2
Crane support 4 is rotated, horizontal carrying heavy goods are convenient for, limited block 6 is fixed on the upper left side of fixed frame 5, rises
The upper left side of heavy-duty machine bracket 4 is equipped with crane arm 7, and crane arm 7 is made up of transmission shaft 10 and crane support 4 and lives
Dynamic structure, and the cylindrical structure of crane support 4, crane arm 7 pass through transmission shaft 10 and 4 composition activity of crane support
Structure enables the vertical-lift weight in a certain range of crane arm 7, and the upper left side of fixed frame 5 is equipped with telescopic rod 9,
And the top of telescopic rod 9 is fixed with fixed block 8, the top of fixed block 8 is connected with crane arm 7, and crane arm 7 is logical
It crosses transmission shaft 10 to be connected with crane support 4, the inner upper of limited block 6 is provided with groove 12, and groove 12 is interior
Portion is equipped with movable axis 13, and the diameter of groove 12 is greater than the diameter of movable axis 13, and constitutes between movable axis 13 and telescopic rod 9
Vertical structure, the diameter that the diameter of groove 12 is greater than movable axis 13 makes inside it can be with installation activity axis 13, and movable axis 13
There is certain space that can rotate with the rotation of crane arm 7, the two sides of movable axis 13 are fixed with screw 14, seat stand 2
Lower inside is provided with limiting slot 15, and the bosom of seat stand 2 is equipped with shaft 16, the arc-shaped structure of limiting slot 15, and limits
The size of position bar 3 matches with 15 inside dimension of limiting slot, and the arc-shaped structure of limiting slot 15 can make gag lever post 3 have certain work
Dynamic space, the size of position bar 3 matches with 15 inside dimension of limiting slot enables gag lever post 3 to move inside limiting slot 15,
The side of limiting slot 15 is fixed with retention bead 17.
Working principle: for the slewing limit structure of this kind of crane arm bracket, first by turning inside seat stand 2
Platform 11 rotates crane support 4 with shaft 16, so that crane arm 7 prepares to sling weight towards weight on one side,
The gag lever post 3 of 11 lower section of turntable moves inside limiting slot 15 while crane support 4 is rotated, and gag lever post 3 moves
The blocking of retention bead 17 is encountered after certain distance, so that retention bead 17 plays the role of limit to the displacement of gag lever post 3, is prevented
Only the excessive rotation of crane support 4 causes abrased gear, then slings weight using crane arm 7, is slinging weight
In the process, crane arm 7 be moved up and down by the rotation of transmission shaft 10 and crane support 4, meanwhile, telescopic rod
9 can rotate under the effect of the movable axis 13 inside limited block 6 with the rotation of crane arm 7, and simultaneous retractable bar 9 has one
Fixed length limitation can play the role of restriction to the rotational angle of crane arm 7, can pass through spiral shell after long-term use
It follows closely 14 pairs of limited blocks 6, telescopic rod 9 and fixed block 8 to carry out demolition and replacement, completes returning for entire crane arm bracket like this
Turn position limiting structure use process.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of slewing limit structure of crane arm bracket, including fixing seat (1), crane support (4) and limited block
(6), it is characterised in that: be equipped with seat stand (2) above the fixing seat (1), and the inner upper of seat stand (2) is provided with turntable
(11), it being fixed with gag lever post (3) below the turntable (11), the crane support (4) is fixed on the top of turntable (11),
And fixed frame (5) are installed above crane support (4), the limited block (6) is fixed on the upper left side of fixed frame (5), institute
The upper left side for stating crane support (4) is equipped with crane arm (7), and the upper left side of the fixed frame (5) is equipped with telescopic rod
(9), and the top of telescopic rod (9) is fixed with fixed block (8), and the top of the fixed block (8) is connected with crane arm (7)
It connects, and crane arm (7) is connected by transmission shaft (10) with crane support (4), the inner upper of the limited block (6)
It is provided with groove (12), and the inside of groove (12) is equipped with movable axis (13), the two sides of the movable axis (13) are fixed
Have screw (14), the lower inside of the seat stand (2) is provided with limiting slot (15), and the bosom of seat stand (2) is equipped with and turns
The side of axis (16), the limiting slot (15) is fixed with retention bead (17).
2. a kind of slewing limit structure of crane arm bracket according to claim 1, it is characterised in that: the seat stand
(2) rounded hollow form structure, and the central axes of seat stand (2) are overlapped with the central axes of fixing seat (1).
3. a kind of slewing limit structure of crane arm bracket according to claim 1, it is characterised in that: the lifting
Machine support (4) is mutually perpendicular to seat stand (2), and crane support (4) is made up of turntable (11) and shaft (16) and seat stand (2)
Rotational structure.
4. a kind of slewing limit structure of crane arm bracket according to claim 1, it is characterised in that: the lifting
Machine boom (7) constitutes bascule, and crane support (4) cylindrical knot by transmission shaft (10) and crane support (4)
Structure.
5. a kind of slewing limit structure of crane arm bracket according to claim 1, it is characterised in that: described hollow
The diameter of slot (12) is greater than the diameter of movable axis (13), and constitutes vertical structure between movable axis (13) and telescopic rod (9).
6. a kind of slewing limit structure of crane arm bracket according to claim 1, it is characterised in that: the limit
Slot (15) arc-shaped structure, and the size of gag lever post (3) matches with limiting slot (15) inside dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820753823.5U CN208327205U (en) | 2018-05-18 | 2018-05-18 | A kind of slewing limit structure of crane arm bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820753823.5U CN208327205U (en) | 2018-05-18 | 2018-05-18 | A kind of slewing limit structure of crane arm bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208327205U true CN208327205U (en) | 2019-01-04 |
Family
ID=64774337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820753823.5U Expired - Fee Related CN208327205U (en) | 2018-05-18 | 2018-05-18 | A kind of slewing limit structure of crane arm bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208327205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109911779A (en) * | 2019-04-10 | 2019-06-21 | 贵州钢绳股份有限公司 | A kind of electromagnetism boom hoisting and its application method |
-
2018
- 2018-05-18 CN CN201820753823.5U patent/CN208327205U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109911779A (en) * | 2019-04-10 | 2019-06-21 | 贵州钢绳股份有限公司 | A kind of electromagnetism boom hoisting and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20210518 |