CN203006791U - Automatic adjustment device for pull rods or digging lines - Google Patents
Automatic adjustment device for pull rods or digging lines Download PDFInfo
- Publication number
- CN203006791U CN203006791U CN2012205962860U CN201220596286U CN203006791U CN 203006791 U CN203006791 U CN 203006791U CN 2012205962860 U CN2012205962860 U CN 2012205962860U CN 201220596286 U CN201220596286 U CN 201220596286U CN 203006791 U CN203006791 U CN 203006791U
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- Prior art keywords
- arm
- tie
- bearing pin
- afterbody
- drag
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- Expired - Lifetime
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Abstract
The utility model relates to an automatic adjustment device for pull rods or digging lines. The automatic adjustment device is characterized by comprising a main pull plate, a steering pull plate, pin shafts, cotter pins, a triangular pull plate and two branch pull plates, wherein one end of the main pull plate is connected with a tower top structure through a pin shaft, the other end of the main pull plate is connected with the steering pull plate through the pin shaft, the other end of the steering pull plate is connected with the apex-angle end of the triangular pull plate, the two base-angle ends of the triangular pull plate are respectively connected with the two branch pull plates, the branch pull plates are respectively connected with one ends of the corresponding pull rods or digging lines, and the other ends of the pull rods or digging lines are connected with a crane boom through a crane boom pull plate. According to the automatic adjustment device, the structure is simple, the use effect is good, and the potential safety hazard can be avoided.
Description
Technical field
The utility model relates to a kind of self-checking device for tower crane or electric power pole tower top pull bar or drag-line.Be positioned at the crane arm of the equilateral triangle version at two lower boom places in particular for the crane arm of inverted triangle version and crane arm hoisting point position.
Background technology
Tower crane is mainly used in the crane hoisting equipment of building operation industry, the electric power pole is to innovate the double-arm tower crane of development according to the building tower crane structure, the electric power pole mainly contains dividing of two flat arm poles and two rocker poles, required crane hoisting equipment when being the construction of a kind of electric power pylon group tower, have mounting or dismounting flexibly, operate steadily, simple to operate, safe and reliable, installation effectiveness advantages of higher (following tower crane and electric power pole are with claiming the tower machine).The tower machine has dividing of employing push-and-pull rod and flexible cable, mainly connects tower top and crane arm.
Referring to Fig. 1 ~ 2, derrick runway girder is just having, the inverted triangle section form minute.Pull bar corresponding to the crane arm of each section form the drag-line connection mode.Wherein the same pull bar of the crane arm of inverted triangle section form drag-line lifting place need to establish symmetrical two suspension centre A to keep stress balance at upper both sides main chord, also have positive triangle section form the same pull bar of crane arm drag-line lifting place need establish symmetrical two suspension centre A to keep stress balance at lower both sides main chord.
Due to make some factors such as error (as pull bar drag-line connecting bore apart from different, pull bar guy cable length different) cause existing pull bar the pure monolateral stressed situation of drag-line, this has buried potential safety hazard for in-use performance of tower machine.
The utility model content
Technical problem to be solved in the utility model is to overcome deficiency of the prior art and the self-checking device that is used for tower machine tower top pull bar or drag-line that a kind of simple in structure, result of use is good, can stop potential safety hazard is provided.
the technical scheme in the invention for solving the above technical problem is: the self-checking device of this pull bar or drag-line, it is characterized in that: comprise main arm-tie, turn to arm-tie, bearing pin, spring cotter, triangle arm-tie and minute arm-tie, described main arm-tie one end is connected with the tower top structure by bearing pin, the other end is connected with turning to arm-tie by bearing pin, turn to the other end of arm-tie to be connected with the drift angle end of triangle arm-tie, two base angle ends of triangle arm-tie are connected with respectively a minute arm-tie, each minute, arm-tie connected with an end of corresponding pull bar or drag-line respectively, the other end of pull bar or drag-line is connected with crane arm by connecting the crane arm arm-tie.
The arm-tie that turns to described in the utility model comprises head bearing pin, afterbody bearing pin, head otic placode and afterbody otic placode, the two ends of head bearing pin are respectively arranged with a build section otic placode, two build section otic placodes are parallel to each other, every build section otic placode is connected with an afterbody otic placode respectively, two afterbody otic placodes are parallel to each other and vertical with the head otic placode respectively, the afterbody bearing pin is arranged on two afterbody otic placodes, and the afterbody bearing pin is vertical with the header pin shaft space, afterbody bearing pin and triangle arm-tie are rotationally connected, and head bearing pin and main arm-tie are rotationally connected.Two groups of arm-ties are structurally realized orthogonal to guarantee that turning to arm-tie head and afterbody bearing pin axially to be mutually 90 spends to reach the purpose that turns to.
Triangle arm-tie described in the utility model comprises two arm-ties that three connecting bores are arranged, connect by bearing pin between arm-tie in twos, the drift angle end of triangle arm-tie with turn to arm-tie to be rotationally connected, two base angle ends of triangle arm-tie are connected with respectively a minute arm-tie.
The utility model compared with prior art has the following advantages: the utility model is by turning to the arm-tie implementation structure to be connected to turning to of 90 degree directions; By the triangle arm-tie, realizable force is transmitted to two base angles simultaneously by leg-of-mutton drift angle, and can do take drift angle as turning point low-angle rotation adjustment and guarantee two lateral bracing struts or drag-line uniform stressed.Avoided the pure monolateral stressed situation of pull bar or drag-line, the potential safety hazard of having stopped therefore to produce.
Description of drawings
Fig. 1 is positive triangle section form elevator boom.
Fig. 2 is inverted triangle section form crane arm.
Fig. 3 is the utility model structural representation.
Fig. 4 is the birds-eye view of Fig. 3.
Fig. 5 is the structural representation that turns to arm-tie.
Fig. 6 is the left view of Fig. 5.
The specific embodiment
Referring to Fig. 3 ~ Fig. 6, the utility model comprises main arm-tie 1, turns to arm-tie 2, triangle arm-tie 5, minute arm-tie 6.Turn to arm-tie 2 to comprise head bearing pin 21, afterbody bearing pin 22, head otic placode 23 and afterbody otic placode 24, the two ends of head bearing pin 21 are respectively arranged with a build section otic placode 23, two build section otic placodes 23 are parallel to each other, every build section otic placode 23 is connected with an afterbody otic placode 24 respectively, two afterbody otic placodes 24 are parallel to each other and vertical with head otic placode 23 respectively, afterbody bearing pin 22 is arranged on two afterbody otic placodes 24, and afterbody bearing pin 22 and head bearing pin 21 spatial vertical.Described main arm-tie 1 one ends are connected with the tower top structure, the other end is connected with turning to arm-tie 2 by head bearing pin 21, turn to the afterbody bearing pin 24 of arm-tie 2 to be connected with the drift angle end of triangle arm-tie 5, triangle arm-tie 5 comprises two arm-ties that three connecting bores are arranged, and connects by bearing pin between arm-tie in twos.Triangle arm-tie 5 realizable forces are transmitted to two base angles simultaneously by leg-of-mutton drift angle, and can do take drift angle as turning point low-angle rotation adjustment and guarantee two Ce Lagan drag-line uniform stresseds.5 liang of base angle ends of triangle arm-tie are drawn respectively minute arm-tie 6, each minute arm-tie 6 correspondences independently pull bar drag-line, pull bar the other end of drag-line be connected with crane arm by connecting crane arm arm-tie 8.
Above content described in this specification sheets is only to the explanation of the utility model structure example.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.
Claims (3)
1. the self-checking device of a pull bar or drag-line, it is characterized in that: comprise main arm-tie, turn to arm-tie, bearing pin, spring cotter, triangle arm-tie and minute arm-tie, described main arm-tie one end is connected with the tower top structure by bearing pin, the other end with turn to arm-tie to be rotationally connected, turn to the other end of arm-tie and the drift angle end of triangle arm-tie to be rotationally connected, two base angle ends of triangle arm-tie are connected with respectively a minute arm-tie, each minute, arm-tie connected with an end of corresponding pull bar or drag-line respectively, and the other end of pull bar or drag-line is connected with crane arm by connecting the crane arm arm-tie.
2. the self-checking device of pull bar according to claim 1 or drag-line, it is characterized in that: the described arm-tie that turns to comprises the head bearing pin, the afterbody bearing pin, head otic placode and afterbody otic placode, the two ends of head bearing pin are respectively arranged with a build section otic placode, two build section otic placodes are parallel to each other, every build section otic placode is connected with an afterbody otic placode respectively, two afterbody otic placodes are parallel to each other and vertical with the head otic placode respectively, the afterbody bearing pin is arranged on two afterbody otic placodes, and the afterbody bearing pin is vertical with the header pin shaft space, afterbody bearing pin and triangle arm-tie are rotationally connected, head bearing pin and main arm-tie are rotationally connected.
3. the self-checking device of pull bar according to claim 1 or drag-line, it is characterized in that: described triangle arm-tie comprises three arm-ties, connect by bearing pin between arm-tie in twos, the drift angle end of triangle arm-tie with turn to arm-tie to be rotationally connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205962860U CN203006791U (en) | 2012-11-13 | 2012-11-13 | Automatic adjustment device for pull rods or digging lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205962860U CN203006791U (en) | 2012-11-13 | 2012-11-13 | Automatic adjustment device for pull rods or digging lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203006791U true CN203006791U (en) | 2013-06-19 |
Family
ID=48598406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205962860U Expired - Lifetime CN203006791U (en) | 2012-11-13 | 2012-11-13 | Automatic adjustment device for pull rods or digging lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203006791U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495646A (en) * | 2014-12-31 | 2015-04-08 | 徐州建机工程机械有限公司 | Novel tower crane balance arm pull rod structure |
| CN107140557A (en) * | 2017-06-12 | 2017-09-08 | 徐州重型机械有限公司 | The special jib structure of wind-powered electricity generation and crane |
| CN107724967A (en) * | 2017-11-28 | 2018-02-23 | 徐工集团工程机械有限公司 | Trepan and engineering truck |
| CN110395668A (en) * | 2019-08-08 | 2019-11-01 | 新疆庞源机械工程有限公司 | A kind of cantilever crane of installation derrick crane attachment pull rod |
-
2012
- 2012-11-13 CN CN2012205962860U patent/CN203006791U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495646A (en) * | 2014-12-31 | 2015-04-08 | 徐州建机工程机械有限公司 | Novel tower crane balance arm pull rod structure |
| CN107140557A (en) * | 2017-06-12 | 2017-09-08 | 徐州重型机械有限公司 | The special jib structure of wind-powered electricity generation and crane |
| WO2018227919A1 (en) * | 2017-06-12 | 2018-12-20 | 徐州重型机械有限公司 | Special wind-power boom structure and crane |
| CN107140557B (en) * | 2017-06-12 | 2021-08-13 | 徐州重型机械有限公司 | Special arm support structure for wind power and crane |
| CN107724967A (en) * | 2017-11-28 | 2018-02-23 | 徐工集团工程机械有限公司 | Trepan and engineering truck |
| CN110395668A (en) * | 2019-08-08 | 2019-11-01 | 新疆庞源机械工程有限公司 | A kind of cantilever crane of installation derrick crane attachment pull rod |
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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: 20130619 |
|
| CX01 | Expiry of patent term |