CN201882820U - Automatic jacking device for buffer rod of variable-amplitude auxiliary arm of wheel crane - Google Patents
Automatic jacking device for buffer rod of variable-amplitude auxiliary arm of wheel crane Download PDFInfo
- Publication number
- CN201882820U CN201882820U CN201020621323XU CN201020621323U CN201882820U CN 201882820 U CN201882820 U CN 201882820U CN 201020621323X U CN201020621323X U CN 201020621323XU CN 201020621323 U CN201020621323 U CN 201020621323U CN 201882820 U CN201882820 U CN 201882820U
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- CN
- China
- Prior art keywords
- supporting rod
- variable
- chute
- rear support
- poppet
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- 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 - Lifetime
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Abstract
An automatic jacking device for a buffer rod of a variable-amplitude auxiliary arm of a wheel crane belongs to automatic jacking devices of wheel cranes, and comprises a rear support, an upright plate, a pin, a supporting rod, a chute and a front support. One end of the front support is connected with one end of the rear support by a connector, the upright plate is arranged in the middle of the rear support, the supporting rod is disposed between the front support and the rear support, one end of the supporting rod is connected with the upright plate of the rear support by the pin, and the other end of the supporting rod is connected onto the chute of the rear support. Since one end of the supporting rod is connected onto the upright plate while the other end of the supporting rod is connected with the chute, the supports can guarantee that the supporting rod can slide along a groove on the chute when the variable-amplitude auxiliary arm ascends and descends and the variable-amplitude auxiliary arm can support and guide in the front support and the rear support when ascending and descending, and safety of the variable-amplitude auxiliary arm in ascending and descending operating conditions is effectively improved. The automatic jacking device has the advantages that auxiliary operation of the crane is omitted, labor is reduced, dangers for accidents are greatly decreased, and the personal safety of workers is guaranteed.
Description
Technical field
The utility model relates to a kind of automatic lifting device of wheel crane, particularly a kind of wheel crane luffing auxiliary shock strut automatic lifting device.
Background technology
The luffing auxiliary is the operation part of crane, is made up of link span, installation component, big-and-middle segmentum intercalaris, transition segment, little middle segmentum intercalaris, minor details arm and various arm-tie assembly.Installation component plays the effect of forming a connecting link when the operation of luffing auxiliary, carry huge.It is made up of link span, coxopodite arm, front frame, after poppet and each arm-tie assembly.
The luffing auxiliary is the operation part of crane.Play the arm process: pack up steel rope by the luffing elevator and drive the luffing assembly pulley, the after poppet of pull-up installation component, after poppet are by collapsible arm-tie pull-up front frame, and then a series of arm-ties combinations of process drive various jib combination carrying out operations.The arm state that falls is then opposite.In lift arm, take place to fold because the arm-tie that the bearing pin clamping stagnation causes blocks through regular meeting.At this moment need the staff to get on and remove by force, will cause like this owing to the stressed unexpected release of arm-tie, after poppet then presses down suddenly, tends to cause the accident of hindering the staff of squeezing.In order to improve rise, fall the safety under the arm operating mode of luffing auxiliary effectively, need between forward and backward support, increase a device and prevent jerking of after poppet.
In order to improve transaction capabilities, satisfy the lifting and the lifting of weight, the ultra-large type hoisting crane has disposed the luffing auxiliary.Its forward and backward support all is designed to the local reinforced structure of box, and weight very big (front frame is not less than 2500Kg, and after poppet is not less than 3500Kg) is connected by arm-tie between forward and backward support.The overlapping placement of forward and backward support during transportation, forward and backward support is opened during operation.Because forward and backward weight support frame is very big, rises, cause accidents such as blocking mutually between the arm-tie and be extruded during staff's operation through regular meeting when falling arm.
The shortcoming that exists: one, have again under the condition of unnecessary hoisting crane, need employ the auxiliary hoist operation, increased human and material resources, financial resources; Its two, when not having auxiliary hoist again, then to need the staff to get on to remove by force the risk operation, the danger that has an accident is arranged.
The utility model content
The purpose of this utility model is that a kind of wheel crane luffing auxiliary shock strut automatic lifting device will be provided, and solves when auxiliary hoist is arranged, and needs auxiliary hoist to carry out less important work; When no auxiliary hoist, the problem of the operation of then will taking a risk.
The purpose of this utility model is achieved in that this automatic lifting device comprises after poppet, riser, bearing pin, strut, chute and front frame, end at front frame and after poppet is connected by link span, interposition at after poppet is equipped with riser, interposition at front frame and after poppet is equipped with strut, one end of strut is connected with the riser of after poppet by bearing pin, and the other end of strut is connected on the chute of front frame.
Beneficial effect owing to adopted such scheme, is to increase by a strut between front frame and the after poppet in luffing auxiliary installation component.Strut one end is connected on the riser in the after poppet by bearing pin, the other end links to each other with a chute on being positioned at front frame, between forward and backward support, increase a strut bar and a chute, this support can guarantee when the luffing auxiliary hoists and lands, strut will slide along the groove on the chute, the luffing auxiliary supports and directional tagging rising, play in forward and backward support when falling arm, improves rise, fall the safety under the arm operating mode of luffing auxiliary effectively.
Solved when auxiliary hoist is arranged, needed auxiliary hoist to carry out less important work; When no auxiliary hoist, the problem of the operation of then will taking a risk has reached the purpose of this utility model.
Advantage: do not need to employ the auxiliary hoist operation, reduced human and material resources, financial resources; When no auxiliary hoist, do not need the staff to get on to remove by force the risk operation, significantly reduced the danger that has an accident, ensured workman's personal safety.
Description of drawings
Fig. 1 is the constructional drawing of the utility model embodiment.
Among the figure, 1, after poppet; 2, riser; 3, bearing pin; 4, strut; 5, chute; 6, front frame; 7, coxopodite arm; 8, chock.
The specific embodiment
Embodiment 1: this automatic lifting device comprises after poppet 1, riser 2, bearing pin 3, strut 4, chute 5, front frame 6, coxopodite arm 7 and chock 8;
End at front frame 6 and after poppet 1 is connected by link span, interposition at after poppet 1 is equipped with riser 2, interposition at front frame 6 and after poppet 1 is equipped with strut 4, one end of strut 4 is connected with the riser 2 of after poppet 1 by bearing pin 3, and the other end of strut 4 is connected on the chute 5 of front frame 6.
When hoisting, with after poppet 1 pull-up, strut 4 prevents that after poppet 1 from swinging back and forth because the deadweight effect is slided in the process of hoisting in chute 5 by steel rope; Operation luffing elevator after the arm-tie between after poppet 1 and front frame 6 and the coxopodite arm 7 is all stretching falls within on the ground the chock 8 the coxopodite arm for 7 times.
Claims (1)
1. wheel crane luffing auxiliary shock strut automatic lifting device, it is characterized in that: this automatic lifting device comprises after poppet, riser, bearing pin, strut, chute and front frame, end at front frame and after poppet is connected by link span, interposition at after poppet is equipped with riser, interposition at front frame and after poppet is equipped with strut, one end of strut is connected with the riser of after poppet by bearing pin, and the other end of strut is connected on the chute of front frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020621323XU CN201882820U (en) | 2010-11-17 | 2010-11-17 | Automatic jacking device for buffer rod of variable-amplitude auxiliary arm of wheel crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020621323XU CN201882820U (en) | 2010-11-17 | 2010-11-17 | Automatic jacking device for buffer rod of variable-amplitude auxiliary arm of wheel crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201882820U true CN201882820U (en) | 2011-06-29 |
Family
ID=44180358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020621323XU Expired - Lifetime CN201882820U (en) | 2010-11-17 | 2010-11-17 | Automatic jacking device for buffer rod of variable-amplitude auxiliary arm of wheel crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201882820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552943A (en) * | 2013-11-11 | 2014-02-05 | 湖南中铁五新重工有限公司 | Safety device for preventing gantry crane boom from falling and retroverting |
| CN103818836A (en) * | 2014-02-27 | 2014-05-28 | 中联重科股份有限公司 | Crane jib section with adjustable upwards tilted angle, crane jib and crane |
-
2010
- 2010-11-17 CN CN201020621323XU patent/CN201882820U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552943A (en) * | 2013-11-11 | 2014-02-05 | 湖南中铁五新重工有限公司 | Safety device for preventing gantry crane boom from falling and retroverting |
| CN103818836A (en) * | 2014-02-27 | 2014-05-28 | 中联重科股份有限公司 | Crane jib section with adjustable upwards tilted angle, crane jib and crane |
| CN103818836B (en) * | 2014-02-27 | 2015-08-05 | 中联重科股份有限公司 | The cargo boom joint of adjustable upper set-back, crane arm and hoisting crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |
|
| CX01 | Expiry of patent term |