CN203794520U - Amplitude-variable limiting device of lifting arm for crane - Google Patents
Amplitude-variable limiting device of lifting arm for crane Download PDFInfo
- Publication number
- CN203794520U CN203794520U CN201320749454.XU CN201320749454U CN203794520U CN 203794520 U CN203794520 U CN 203794520U CN 201320749454 U CN201320749454 U CN 201320749454U CN 203794520 U CN203794520 U CN 203794520U
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- CN
- China
- Prior art keywords
- lifting arm
- amplitude
- handle
- lifting
- tower body
- 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 an amplitude-variable limiting device of a lifting arm for a crane. The device comprises a base, wherein the base is provided with a tower body by a rotary bearing; a lifting arm is hinged at the top part of the tower body; a lifting winch is arranged at the upper part of the lifting arm; the lifting winch is connected with a lifting hook at the head part of the lifting arm by a steel wire rope; a limiting device is also arranged on the tower body; the structure of the limiting device is as follows: the limiting device comprises a fixed seat; the middle part of the fixed seat is provided with a handle by a second hinge; the handle is provided with a worm; one end of the fixed seat is provided with a sensor by a fastening piece; the sensor is provided with a touch rod by a first hinge; and one end of the sensor is also provided with a fixed block. The amplitude-variable limiting device disclosed by the utility model has the advantages that the structure is compact and reasonable; the lifting amplitude of the lifting arm is controlled by a worm wheel and worm mechanism, simultaneously in the operation process of the handle, when the handle is contacted with a contact, the lifting arm reaches the lifting extreme position, and the sensor controls the lifting arm not to rise, so that the phenomena that the lifting arm collides in the operation process and the like are effectively avoided; and the practicability and the reliability are good, the safety is good and the cost is low.
Description
Technical field
The utility model relates to weight-lifting equipment technical field, especially a kind of crane suspension arm variable-amplitude inhibiting device.
Background technology
Deck crane, is the large deck machinery of one on ship, and it is a kind of equipment of ship loading and unloading goods.
At present, in the middle of deck crane, what most arm hoisted inhibiting device employing is hydraulic stroke valve inhibiting device, and this limit device structure complexity is installed trouble, and cost is high.
Utility model content
The applicant, for the shortcoming in above-mentioned existing production technology, provides a kind of crane rational in infrastructure suspension arm variable-amplitude inhibiting device, thereby only needs operating handle can control the action that hoists of arm, and functional reliability is good, and cost is low, safe.
The technical scheme that the utility model adopts is as follows:
A kind of crane suspension arm variable-amplitude inhibiting device, comprise base, on described base, by pivoting support, tower body is installed, the top of described tower body is hinged with arm, described arm top is provided with hoister winch, and described hoister winch is connected with the suspension hook of arm head by steel rope; Be positioned at inhibiting device is also installed on tower body, the structure of described inhibiting device is: comprise permanent seat, the middle part of described permanent seat is provided with handle by the second hinge, on described handle, worm screw is installed, the one end that is positioned at permanent seat is provided with inductor by fastener, on described inductor, by the first hinge, feeler lever is installed, one end of described inductor is also provided with fixed block.
Further improvement as technique scheme:
Between described fixed block and feeler lever, spring is installed;
The head of described feeler lever is provided with the contact of handle contact;
Described permanent seat is welded on tower body.
The beneficial effects of the utility model are as follows:
The utility model compact conformation, reasonable, by the amplitude that hoists of worm-and-wheel gear control arm, simultaneously by operating handle process, it when handle contacts with contact, is the arm end position that hoists, inductor control arm no longer continues to rise, and actv. has been avoided the phenomenons such as arm bumps in operating process, practical good reliability, safety is good, and cost is low.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the front view of the utility model inhibiting device.
Wherein: 1, tower body; 2, pivoting support; 3, inhibiting device; 4, base; 5, hoister winch; 6, arm; 7, steel rope; 8, handle; 9, worm screw; 10, contact; 11, feeler lever; 12, spring; 13, fixed block; 14, the first hinge; 15, inductor; 16, the second hinge; 17, permanent seat.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described.
As shown in Figure 1, the crane of the present embodiment suspension arm variable-amplitude inhibiting device, comprises base 4, on base 4, by pivoting support 2, tower body 1 is installed, the top of tower body 1 is hinged with arm 6, and arm 6 tops are provided with hoister winch 5, and hoister winch 5 is connected with the suspension hook of arm 6 heads by steel rope 7; Be positioned at inhibiting device 3 is also installed on tower body 1, the structure of inhibiting device 3 is: comprise permanent seat 17, the middle part of permanent seat 17 is provided with handle 8 by the second hinge 16, worm screw 9 is installed on handle 8, the one end that is positioned at permanent seat 17 is provided with inductor 15 by fastener, on inductor 15, by the first hinge 14, feeler lever 11 is installed, one end of inductor 15 is also provided with fixed block 13.
Between fixed block 13 and feeler lever 11, spring 12 is installed.
The head of feeler lever 11 is provided with the contact 10 that handle 8 contacts.
Permanent seat 17 is welded on tower body 1.
In actual use procedure, by the operation of handle 8, actv. prevents that arm 6 is excessive in the amplitude of hoisting, and causes arm 6 and the phenomenon that other devices collide, and has improved functional reliability, and safety factor is high.
More than describing is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range, referring to claim, within protection domain of the present utility model, can be done any type of amendment.
Claims (3)
1. a crane suspension arm variable-amplitude inhibiting device, it is characterized in that: comprise base (4), described base (4) is upper is provided with tower body (1) by pivoting support (2), the top of described tower body (1) is hinged with arm (6), described arm (6) top is provided with hoister winch (5), and described hoister winch (5) is connected with the suspension hook of arm (6) head by steel rope (7), be positioned at inhibiting device (3) is also installed on tower body (1), the structure of described inhibiting device (3) is: comprise permanent seat (17), the middle part of described permanent seat (17) is provided with handle (8) by the second hinge (16), described handle (8) upper installation worm screw (9), the one end that is positioned at permanent seat (17) is provided with inductor (15) by fastener, described inductor (15) is upper is provided with feeler lever (11) by the first hinge (14), one end of described inductor (15) is also provided with fixed block (13), between described fixed block (13) and feeler lever (11), spring (12) is installed.
2. crane as claimed in claim 1 suspension arm variable-amplitude inhibiting device, is characterized in that: the head of described feeler lever (11) is provided with the contact (10) of handle (8) contact.
3. crane as claimed in claim 1 suspension arm variable-amplitude inhibiting device, is characterized in that: described permanent seat (17) is welded on tower body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749454.XU CN203794520U (en) | 2013-11-25 | 2013-11-25 | Amplitude-variable limiting device of lifting arm for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749454.XU CN203794520U (en) | 2013-11-25 | 2013-11-25 | Amplitude-variable limiting device of lifting arm for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203794520U true CN203794520U (en) | 2014-08-27 |
Family
ID=51376754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320749454.XU Expired - Fee Related CN203794520U (en) | 2013-11-25 | 2013-11-25 | Amplitude-variable limiting device of lifting arm for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203794520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663212A (en) * | 2013-11-25 | 2014-03-26 | 无锡起岸重工机械有限公司 | Amplitude limiting device for lifting arm of crane |
-
2013
- 2013-11-25 CN CN201320749454.XU patent/CN203794520U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663212A (en) * | 2013-11-25 | 2014-03-26 | 无锡起岸重工机械有限公司 | Amplitude limiting device for lifting arm of crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20151125 |