CN204342325U - The connection structure of tower machine equilibrium arm and slewing tower - Google Patents
The connection structure of tower machine equilibrium arm and slewing tower Download PDFInfo
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- CN204342325U CN204342325U CN201420764907.0U CN201420764907U CN204342325U CN 204342325 U CN204342325 U CN 204342325U CN 201420764907 U CN201420764907 U CN 201420764907U CN 204342325 U CN204342325 U CN 204342325U
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- tower
- equilibrium arm
- mounting hole
- bearing pin
- slewing tower
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Abstract
The utility model discloses the connection structure of a kind of tower machine equilibrium arm and slewing tower, belong to tower crane apparatus field, comprise equilibrium arm (1), slewing tower (2), described equilibrium arm is provided with bi-lug plate I (1.1), otic placode I has pin shaft hole I, described slewing tower is provided with monaural plate II (2.1); Pin shaft hole I internal fixtion has bearing pin (3), otic placode II has and holds and the mounting hole of fixed pin shaft; One end of described mounting hole is provided with opening, and bearing pin enters in mounting hole from the opening part of mounting hole, mounting hole is equipped with the bolt (4) of locking bearing pin.By modified node method, the requirement on machining accuracy of the pin shaft hole of equilibrium arm and slewing tower reduces, and strengthens, effectively can reduce productive costs to the tolerance connecting otic placode welding deformation and Mismachining tolerance; Easily the bearing pin on equilibrium arm can be put into the mounting hole of slewing tower, then tight a bolt and can realize connecting, convenient and swift, installation process is time saving and energy saving.
Description
Technical field
The utility model relates to a kind of connection structure, and particularly the connection structure of a kind of tower machine equilibrium arm and slewing tower, belongs to tower crane apparatus field.
Background technology
In existing tower crane, between equilibrium arm and slewing tower, generally adopt pinned connection, as shown in Figure 1.Equilibrium arm 1 arranges bi-lug plate I 1.1, otic placode I 1.1 is offered pin shaft hole I 1.2, slewing tower 2 arranges monaural plate II 2.1, otic placode II 2.1 is offered pin shaft hole II 2.2, by bearing pin 3 successively through the pin shaft hole on equilibrium arm 1, slewing tower 2, the connection of both realizations.In installation process, use car hosit to sling equilibrium arm 1, after being alignd with the pin shaft hole II 2.2 on slewing tower 2 by the pin shaft hole I 1.2 on equilibrium arm 1, squeeze into bearing pin 3.
Use middle discovery, adopt bearing pin otic placode formula to connect and have the following disadvantages:
1. in the connection procedure of equilibrium arm and slewing tower, the requirement on machining accuracy of pinned connection to equilibrium arm, slewing tower upper pin hole is high, and otic placode welding slightly distortion or position deviation, can cause bearing pin to be difficult to throw pin shaft hole into, add installation difficulty.
2. installation process needs aloft work, and adjust the alignment in equilibrium arm and slewing tower upper pin hole by automobile lifting, practical operation is more difficult; Also very hard time operative employee beats bearing pin with "painted-face" character in opera, simple operation is poor.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides the connection structure of a kind of tower machine equilibrium arm and slewing tower, the working accuracy in equilibrium arm and slewing tower upper pin hole is low, the tolerance of otic placode welding deformation and Mismachining tolerance is large, installation difficulty is low, and operating process is time saving and energy saving, it is convenient to install.
To achieve these goals, the connection structure of a kind of tower machine equilibrium arm that the utility model adopts and slewing tower, comprise equilibrium arm, slewing tower, described equilibrium arm is provided with bi-lug plate I, otic placode I has pin shaft hole I, described slewing tower is provided with monaural plate II; Described pin shaft hole I internal fixtion has bearing pin, described otic placode II has and holds and the mounting hole of fixed pin shaft; One end of described mounting hole is provided with opening, and bearing pin enters in mounting hole from the opening part of mounting hole, mounting hole is equipped with the bolt of locking bearing pin.
Further, mounting hole is duckbill, and the maxilla radian of duckbilled is less than lower jaw, and bearing pin enters the chin of duckbilled from the opening of mounting hole; Have through hole in the maxilla of described duckbilled, through hole is built with the bolt for locking bearing pin, and bolt holds out against the bearing pin entered in mounting hole, realizes the connection of equilibrium arm and slewing tower.
Further, the screw thread coordinated with bolt is provided with in the through hole of duckbilled maxilla.
Further, bearing pin through after bi-lug plate I and otic placode I welded together.
With adopt compared with bearing pin otic placode formula connects in prior art, the beneficial effects of the utility model are:
1. by modified node method, the requirement on machining accuracy of the pin shaft hole of equilibrium arm and slewing tower reduces, and strengthens, effectively can reduce productive costs to the tolerance connecting otic placode welding deformation and Mismachining tolerance.
2. slewing tower and the simple operation of equilibrium arm installation process obviously strengthen, easily the bearing pin be fixed on equilibrium arm can be put into the duck-beak type mounting hole of slewing tower, then tight a bolt, eliminate the link that bearing pin is beaten in high-altitude, convenient and swift, installation process is time saving and energy saving.
Accompanying drawing explanation
Fig. 1 is the connection structure schematic diagram of equilibrium arm and slewing tower in prior art;
Fig. 2 is the structural representation of the coupling end of equilibrium arm in Fig. 1;
Fig. 3 is the birds-eye view of Fig. 2;
Fig. 4 is the structural representation of the coupling end of slewing tower in Fig. 1;
Fig. 5 is the connection structure partial schematic diagram of equilibrium arm and slewing tower in the utility model;
Fig. 6 is the structural representation of the coupling end of equilibrium arm in Fig. 5;
Fig. 7 is the structural representation of the coupling end of slewing tower in Fig. 5;
In figure: 1, equilibrium arm, 1.1, otic placode I, 1.2, pin shaft hole I, 2, slewing tower, 2.1, otic placode II, 2.2, pin shaft hole II, 2.3, mounting hole, 3, bearing pin, 4, bolt.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 5, a connection structure for tower machine equilibrium arm and slewing tower, comprises equilibrium arm 1, slewing tower 2, and described equilibrium arm 1 is provided with bi-lug plate I 1.1, otic placode I 1.1 has pin shaft hole I 1.2, described slewing tower 2 is provided with monaural plate II 2.1; Described pin shaft hole I 1.2 internal fixtion has bearing pin 3, described otic placode II 2.1 has and holds and the mounting hole 2.3 of fixed pin shaft 3; One end of described mounting hole 2.3 is provided with opening, and bearing pin 3 enters in mounting hole 2.3 from the opening part of mounting hole 2.3, mounting hole 2.3 is equipped with the bolt 4 of locking bearing pin 3.
As shown in Figure 7, mounting hole 2.3 is duckbill, and the maxilla radian of duckbilled is less than lower jaw, and bearing pin 3 enters the chin of duckbilled from the opening of mounting hole 2.3, and adopt the structure of duckbill easy to process, bearing pin 3 is placed on bottom duckbilled lower jaw simultaneously, installs firm safety; Through hole is had in the maxilla of described duckbilled, through hole is built with the bolt 4 for locking bearing pin 3, bolt 4 holds out against the bearing pin 3 entered in mounting hole 2.3, realizes equilibrium arm 1 and the connection of slewing tower 2, bearing pin 3 can better be fixed on duckbilled lower jaw bottom by the bolt 4 be arranged in through hole.
Be provided with the screw thread coordinated with bolt 4 in the through hole of duckbilled maxilla, be threaded connection, can the effective position of adjusting bolt 4 in through hole, improve the structural stability of bearing pin 3 in mounting hole 2.3.
As shown in Figure 6, bearing pin 3 through after bi-lug plate I 1.1 and otic placode I 1.1 welded together, easily the bearing pin 3 on equilibrium arm 1 can be put into the duck-beak type mounting hole 2.3 of slewing tower 2, again by 4 connections that can realize equilibrium arm 1 and slewing tower 2 that tight a bolt, eliminate the link that bearing pin 3 is beaten in high-altitude, faster convenience is installed.
During use, after first bearing pin 3 being passed the bi-lug plate I 1.1 on equilibrium arm 1, by welded together to bearing pin 3 and otic placode I 1.1; On the monaural plate II 2.1 of slewing tower 2, offer duckbill mounting hole 2.3 simultaneously, offer screwed through hole at the maxilla of duckbilled, through hole is built with the bolt 4 of locking.When assembling equilibrium arm 1 and slewing tower 2, snap in the duck-beak type mounting hole 2.3 of slewing tower 2 by the bearing pin 3 be fixed on equilibrium arm 1, then tight a bolt 4, make bolt 4 hold out against on the bearing pin 3 of equilibrium arm 1, it is more firmly firm, easy to use to install.
Claims (5)
1. the connection structure of a tower machine equilibrium arm and slewing tower, comprise equilibrium arm (1), slewing tower (2), described equilibrium arm (1) is provided with bi-lug plate I (1.1), otic placode I (1.1) has pin shaft hole I (1.2), described slewing tower (2) is provided with monaural plate II (2.1); It is characterized in that, described pin shaft hole I (1.2) internal fixtion has bearing pin (3), described otic placode II (2.1) has and holds and the mounting hole (2.3) of fixed pin shaft (3);
One end of described mounting hole (2.3) is provided with opening, bearing pin (3) enters in mounting hole (2.3) from the opening part of mounting hole (2.3), mounting hole (2.3) is equipped with the bolt (4) of locking bearing pin (3).
2. the connection structure of a kind of tower machine equilibrium arm according to claim 1 and slewing tower, it is characterized in that, described mounting hole (2.3) is duckbill, the maxilla radian of duckbilled is less than lower jaw, and bearing pin (3) enters the chin of duckbilled from the opening of mounting hole (2.3);
Through hole is had in the maxilla of described duckbilled, through hole is built with the bolt (4) for locking bearing pin (3), bolt (4) holds out against the bearing pin (3) entered in mounting hole (2.3), realizes the connection of equilibrium arm (1) and slewing tower (2).
3. the connection structure of a kind of tower machine equilibrium arm according to claim 2 and slewing tower, is characterized in that, is provided with the screw thread coordinated with bolt (4) in the through hole of described duckbilled maxilla.
4. the connection structure of a kind of tower machine equilibrium arm according to claim 1 and 2 and slewing tower, is characterized in that, described bearing pin (3) is welded together with otic placode I (1.1) afterwards through bi-lug plate I (1.1).
5. the connection structure of a kind of tower machine equilibrium arm according to claim 3 and slewing tower, is characterized in that, described bearing pin (3) is welded together with otic placode I (1.1) afterwards through bi-lug plate I (1.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420764907.0U CN204342325U (en) | 2014-12-08 | 2014-12-08 | The connection structure of tower machine equilibrium arm and slewing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420764907.0U CN204342325U (en) | 2014-12-08 | 2014-12-08 | The connection structure of tower machine equilibrium arm and slewing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204342325U true CN204342325U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420764907.0U Active CN204342325U (en) | 2014-12-08 | 2014-12-08 | The connection structure of tower machine equilibrium arm and slewing tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814610A (en) * | 2019-10-23 | 2020-02-21 | 湖南中联重科建筑起重机械有限责任公司 | Welding tool |
-
2014
- 2014-12-08 CN CN201420764907.0U patent/CN204342325U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814610A (en) * | 2019-10-23 | 2020-02-21 | 湖南中联重科建筑起重机械有限责任公司 | Welding tool |
| CN110814610B (en) * | 2019-10-23 | 2022-04-22 | 湖南中联重科建筑起重机械有限责任公司 | Welding tool |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |