CN203513132U - Tower crane - Google Patents
Tower crane Download PDFInfo
- Publication number
- CN203513132U CN203513132U CN201320669709.1U CN201320669709U CN203513132U CN 203513132 U CN203513132 U CN 203513132U CN 201320669709 U CN201320669709 U CN 201320669709U CN 203513132 U CN203513132 U CN 203513132U
- Authority
- CN
- China
- Prior art keywords
- standard knot
- main chord
- bearing pin
- tower crane
- seal washer
- 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 - Lifetime
Links
- 238000010276 construction Methods 0.000 claims description 20
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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Abstract
The utility model provides a tower crane. The tower crane comprises: a first standard section (10); and a second standard knot (20) fixed on the top of the first standard knot (10); and a sealing structure is arranged at the joint of the first standard knot (10) and the second standard knot (20). The technical scheme of the utility model the sealed effect of standard festival junction can be improved, the corrosion is prevented.
Description
Technical field
The utility model relates to construction machinery and equipment, in particular to a kind of tower crane.
Background technology
Tower crane generally has a plurality of standard knots of vertically arranging, in adjacent two standard knots, the top that is positioned at a standard knot of below has connector, connector with above standard knot between by being connected bearing pin, be fixedly connected with, connector is generally forging, do not do antirust processing, the general surface treatment method of zinc-plated or sulphonitrocarburizing that adopts of corresponding connection bearing pin comes antirust.
In the disassembly process of standard knot, connect the rust proof layer on bearing pin surface easily because friction comes off, after work a period of time, because rust proof layer comes off, make connector, with the surface that is connected bearing pin, the bonding phenomenon of corrosion easily occur, because iron rust is originally as expansion, open texture, easily absorb moisture, so caused the aggravation of corrosion phenomena, thereby make to connect bearing pin, be difficult to remove in connector, cause connector distortion or connect bearing pin damaging.
Utility model content
The utility model aims to provide a kind of tower crane, can improve the sealing effectiveness of standard knot junction, prevents corrosion.
To achieve these goals, according to an aspect of the present utility model, provide a kind of tower crane, having comprised: the first standard knot; And second standard knot, be fixed on the top of the first standard knot; The junction of the first standard knot and the second standard knot is provided with hermetically-sealed construction.
Further, the top of the main chord of the first standard knot has connector, and connector is located in the main chord of the second standard knot, between the main chord of connector and the second standard knot, is equipped with and is connected bearing pin; Hermetically-sealed construction comprises the first tightening seal washer being set on connection bearing pin.
Further, the first tightening seal washer has two, is set in respectively the two ends that connect bearing pin, and respectively with the lateral surface butt of the main chord of the second standard knot.
Further, hermetically-sealed construction also comprises two back-up rings, is separately fixed at the two ends that connect bearing pin, and between each back-up ring in two back-up rings and the main chord of the second standard knot, butt has the first seal ring.
Further, hermetically-sealed construction also comprises two stopper rings, is set in respectively the two ends that connect bearing pin, and wherein each stopper ring presses on the first corresponding seal ring and between corresponding back-up ring and the main chord of the second standard knot.
Further, hermetically-sealed construction also comprises baffle plate, and baffle plate is fixed on the main chord inside of the second standard knot and is positioned at the top of connector.
Further, hermetically-sealed construction also comprises the second tightening seal washer, and the second tightening seal washer is connected to the junction of the main chord of the first standard knot and the main chord of the second standard knot.
Further, the medial surface of the main chord of the second standard knot is fixed with brace panel, and the main chord of brace panel, the first standard knot, the main chord of the second standard knot and connector enclose formation groove, and the second tightening seal washer is connected in groove.
Application the technical solution of the utility model, between two adjacent standard knots, hermetically-sealed construction is set, can effectively anti-sealing and dust Engage of standard joint between, there is corrosion phenomena in the junction that prevents two standard knots, increase substantially the corrosion-resistant property of standard knot junction, improve the service life of standard knot and corresponding link.
Accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows according to the front view of the standard knot of embodiment of the present utility model;
Fig. 2 shows the left view according to Fig. 1;
Fig. 3 shows the birds-eye view according to Fig. 1;
Fig. 4 shows the A place enlarged drawing according to Fig. 1;
Fig. 5 shows according to the schematic diagram of an angle of the standard knot junction of embodiment of the present utility model;
Fig. 6 shows the B place enlarged drawing according to Fig. 5;
Fig. 7 shows the C place enlarged drawing according to Fig. 6;
Fig. 8 shows the D place enlarged drawing according to Fig. 6;
Fig. 9 shows according to the schematic diagram of another angle of the standard knot junction of embodiment of the present utility model;
Figure 10 shows the E place enlarged drawing according to Fig. 9;
Figure 11 shows according to the first step scheme of installation of the second tightening seal washer of embodiment of the present utility model;
Figure 12 shows according to the second step scheme of installation of the second tightening seal washer of embodiment of the present utility model;
Figure 13 shows the 3rd step scheme of installation according to the second tightening seal washer of embodiment of the present utility model;
Figure 14 shows the F place enlarged drawing according to Figure 13;
Figure 15 shows and is connecting according to embodiment of the present utility model the first step scheme of installation that the first seal ring is installed on bearing pin;
Figure 16 shows and is connecting according to embodiment of the present utility model the second step scheme of installation that the first seal ring is installed on bearing pin;
Figure 17 shows and is connecting according to embodiment of the present utility model the 3rd step scheme of installation that the first seal ring is installed on bearing pin;
Figure 18 shows and is connecting according to embodiment of the present utility model the 4th step scheme of installation that the first seal ring is installed on bearing pin;
Figure 19 shows and is connecting according to embodiment of the present utility model the 5th step scheme of installation that the first seal ring is installed on bearing pin;
Figure 20 shows and is connecting according to embodiment of the present utility model the 6th step scheme of installation that the first seal ring is installed on bearing pin;
Figure 21 shows and is connecting according to embodiment of the present utility model the 7th step scheme of installation that the first seal ring is installed on bearing pin;
Figure 22 shows the G place enlarged drawing according to Figure 21; And
Figure 23 shows and is connecting according to embodiment of the present utility model the 8th step scheme of installation that the first seal ring is installed on bearing pin.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
As shown in Fig. 1 to Figure 23, according to embodiment of the present utility model, a kind of tower crane is provided, in conjunction with referring to Fig. 1 to Fig. 3, this tower crane comprises the first standard knot 10 and the second standard knot 20, the second standard knot 20 is fixed on the top of the first standard knot 10, the junction of the first standard knot 10 and the second standard knot 20 is provided with hermetically-sealed construction, for preventing that water and the dust of outside from entering between the first standard knot 10 and the second standard knot 20, protect the junction of the first standard knot 10 and the second standard knot 20 not to be subject to corrosion, increase substantially the first standard knot 10 and the corrosion-resistant property of the second standard knot 20 junctions and the service life of corresponding link.
In conjunction with referring to Fig. 4 to Figure 10, between the first standard knot 10 and the second standard knot 20, by connecting bearing pin 30, connect, be specially, the top of the main chord 11 of the first standard knot 10 is fixed with connector 12, connector 12 protrudes from the main chord 11 of the first standard knot 10, the main chord 21 of the second standard knot 20 is set on connector 12, on the main chord 21 of connector 12 and the second standard knot 20, wears and is connected bearing pin 30, and hermetically-sealed construction is mainly used in and improves on the rustless property that connects bearing pin 30.
Under general environment, the chemical reaction that iron gets rusty is:
4Fe+3O
2+XH
2O=2Fe
2O
3·XH
2O；
By above-mentioned formula, can be found out, the condition that iron gets rusty is: iron, air (O
2) and water, so, the junction sealing of bearing pin 30 with connector 12 will be connected, make it can not touch water and air, thereby make iron that corrosion-resistant property and the service life that is connected bearing pin 30 that chemical reaction just can increase substantially the first standard knot 10 and the junction of the second standard knot 20 cannot occur.
In conjunction with referring to Fig. 7 and Fig. 8, hermetically-sealed construction comprises two the first tightening seal washers 41, two the first tightening seal washers 41 are set in respectively the two ends that connect bearing pin 30, one of them first tightening seal washer 41 connect between the shaft shoulder of bearing pin 30 and the main chord 21 of the second standard knot 20 and with the lateral surface butt of the main chord 21 of the second standard knot 20, another first tightening seal washer 41 be located between the latch 40 that connects on bearing pin 30 and the main chord 21 of the second standard knot 20 and with the lateral surface butt of the main chord 21 of the second standard knot 20, two the first tightening seal washers 41 are by the gap closing that is connected connecting between the main chord 21 of bearing pin 30 two ends and the second standard knot 20, water and air cannot enter in the main chord 21 of the second standard knot 20, also just cannot contact connector 12, realize the raising of the first standard knot 10 and the second standard knot 20 junction decay resistances.
Preferably, the two ends that connect bearing pin 30 are fixed with respectively back-up ring 42, guarantee to connect the sealed at both ends effect of bearing pin 30.One of them back-up ring 42 is connected between the shaft shoulder that connects bearing pin 30 and corresponding the first tightening seal washer 41, and this first tightening seal washer 41 is connected between the back-up ring 42 of homonymy and main chord 21 lateral surfaces of the second standard knot 20; Another back-up ring 42 is connected between the latch 40 that connects bearing pin 30 and corresponding the first tightening seal washer 41, and this first tightening seal washer 41 is connected between the back-up ring 42 of homonymy and main chord 21 lateral surfaces of the second standard knot 20.Back-up ring 42 can prevent that the first tightening seal washer 41 from skidding off from connecting the two ends of bearing pin 30 because being squeezed, and guarantees sealing effectiveness by actv..
In working process due to tower crane, the application forces such as the junction meeting under tension of connection bearing pin 30 and connector 12 and the second standard knot 20, pressure, and then can cause connecting bearing pin 30 and be moved, for preventing that connecting bearing pin 30 moves to arbitrary limit place, two ends, the first tightening seal washer 41 is not fitted in connect the gap that is connected between the main chord 21 of bearing pin 30 and the second standard knot 20 to be located, or be extruded damage, preferably, in each first tightening seal washer 41 periphery, increase respectively a stopper ring 43.Two stopper rings 43 are set in respectively the two ends that connect bearing pin 30, and each stopper ring 43 is pressed on the first corresponding tightening seal washer 41, and between corresponding back-up ring 42 and the main chord 21 of the second standard knot 20.
Preferably, hermetically-sealed construction also comprises baffle plate 44, and baffle plate 44 is fixedly mounted on main chord 21 inside of the second standard knot 20 and is positioned at the top of connector 12, for guaranteeing that the water on main chord 21 tops of the second standard knot 20 can not flow down.
In conjunction with referring to Fig. 6 and Figure 10, preferably, hermetically-sealed construction also comprises that the second tightening seal washer 46, the second tightening seal washers 46 are connected to the junction of the first standard knot 10 and the second standard knot 20, for the junction of the first standard knot 10 and the second standard knot 20, seals.Be specially, medial surface at the main chord 21 of the second standard knot 20 is fixed with brace panel 22, at the end face of main chord 11 of brace panel 22, the first standard knot 10, enclose formation groove between the medial surface of the main chord 21 of the second standard knot 20 and the lateral surface of connector 12, the second tightening seal washer 46 is connected in this groove, can be by the connection gap sealing of the main chord 21 of the main chord of the first standard knot 10 11 and the second standard knot 20, to prevent that the place, connection gap of the main chord 11 of the first standard knot 10 and the main chord 21 of the second standard knot 20 from having water to infiltrate.
In conjunction with referring to Figure 11 to Figure 23, the installation steps of the first standard knot 10 and the second standard knot 20 are as follows:
1, combination, referring to Figure 11 to Figure 14, is first arranged on the second tightening seal washer 46 between the first standard knot 10 and the second standard knot 20:
Step (1), in conjunction with referring to Figure 11, is arranged on the second tightening seal washer 46 bottom of connector 12;
Step (2), in conjunction with referring to Figure 12, is aimed at connector 12 by the main chord of the second standard knot 20 21 and is slowly put down;
Step (3) combination is referring to Figure 13 and Figure 14, until the main chord 11 of the first standard knot 10 and the main chord 21 of the second standard knot 20 are fitted completely, brace panel 22 extruding second tightening seal washers 46 of the second standard knot 20 make it distortion, complete the sealing to the connection gap between the main chord 11 of the first standard knot 10 and the main chord 21 of the second standard knot 20.
2, combination, referring to Figure 15 to Figure 23, is then arranged on the first tightening seal washer 41 between the first standard knot 10 and the second standard knot 20:
Step (1) is in conjunction with referring to Figure 15, packs successively a back-up ring 42, the first tightening seal washer 41 and a stopper ring 43 into connecting bearing pin 30 near one end of the shaft shoulder along the direction away from the shaft shoulder;
Step (2) is in conjunction with referring to Figure 16, will connect bearing pin 30 and aims at the pin shaft hole on the main chord 21 of connectors 12 and the second standard knot 20 and knock in pin shaft hole;
Step (3) combination is referring to Figure 17, until the shaft shoulder of the main chord 21 of the second standard knot 20, stopper ring 43, back-up ring 42, connection bearing pin 30 all fits together;
Step (4), in conjunction with referring to Figure 18, puts another the first tightening seal washer 41 at the other end that connects bearing pin 30;
Step (5), in conjunction with referring to Figure 19, puts another stopper ring 43 in another the first tightening seal washer 41 outsides;
Step (6), in conjunction with referring to Figure 20, puts another back-up ring 42 at another stopper ring 43 with another the first tightening seal washer 41 outsides;
Step (7), in conjunction with referring to Figure 21 and Figure 22, firmly compresses another back-up ring 42, and latch 40 is aimed to the pin hole that connects bearing pin 30;
Step (8), in conjunction with referring to Figure 23, inserts by latch 40 pin shaft hole that connects bearing pin 30.
After hermetically-sealed construction installation, the junction of the first standard knot 10 and the second standard knot 20 cannot touch water, has greatly strengthened the antirust ability of bearing pin, connector.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
1, rust resistance is strong;
2, can adapt to varying environment, different operating mode;
3, simple in structure, installation, easy to maintenance.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a tower crane, comprising:
The first standard knot (10); And
The second standard knot (20), is fixed on the top of described the first standard knot (10);
It is characterized in that, described the first standard knot (10) is provided with hermetically-sealed construction with the junction of described the second standard knot (20).
2. tower crane according to claim 1, is characterized in that,
The top of the main chord (11) of described the first standard knot (10) has connector (12), described connector (12) is located in the main chord (21) of described the second standard knot (20), between the described main chord (21) of described connector (12) and described the second standard knot (20), is equipped with and is connected bearing pin (30);
Described hermetically-sealed construction comprises the first tightening seal washer (41) being set on described connection bearing pin (30).
3. tower crane according to claim 2, it is characterized in that, described the first tightening seal washer (41) has two, is set in respectively the two ends of described connection bearing pin (30), and respectively with the lateral surface butt of the described main chord (21) of described the second standard knot (20).
4. tower crane according to claim 3, it is characterized in that, described hermetically-sealed construction also comprises two back-up rings (42), be separately fixed at the two ends of described connection bearing pin (30), between each back-up ring (42) in described two back-up rings (42) and the described main chord (21) of described the second standard knot (20), butt has described the first tightening seal washer (41).
5. tower crane according to claim 4, it is characterized in that, described hermetically-sealed construction also comprises two stopper rings (43), be set in respectively the two ends of described connection bearing pin (30), wherein each stopper ring (43) presses on corresponding described the first tightening seal washer (41) and go up and is positioned between the described back-up ring (42) and the described main chord (21) of described the second standard knot (20) of correspondence.
6. tower crane according to claim 2, it is characterized in that, described hermetically-sealed construction also comprises baffle plate (44), and described baffle plate (44) is fixed on described main chord (21) inside of described the second standard knot (20) and is positioned at the top of described connector (12).
7. tower crane according to claim 2, it is characterized in that, hermetically-sealed construction also comprises the second tightening seal washer (46), and described the second tightening seal washer (46) is connected to the junction of the described main chord (11) of described the first standard knot (10) and the described main chord (21) of described the second standard knot (20).
8. tower crane according to claim 7, it is characterized in that, the medial surface of the described main chord (21) of described the second standard knot (20) is fixed with brace panel (22), the described main chord (11) of described brace panel (22), described the first standard knot (10), the described main chord (21) of described the second standard knot (20) and described connector (12) enclose formation groove, and described the second tightening seal washer (46) is connected in described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669709.1U CN203513132U (en) | 2013-10-28 | 2013-10-28 | Tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669709.1U CN203513132U (en) | 2013-10-28 | 2013-10-28 | Tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203513132U true CN203513132U (en) | 2014-04-02 |
Family
ID=50372091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320669709.1U Expired - Lifetime CN203513132U (en) | 2013-10-28 | 2013-10-28 | Tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203513132U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107758488A (en) * | 2017-11-17 | 2018-03-06 | 重庆大安渝南重型钢结构工程有限公司 | A kind of closed type lifting machine load steel structure |
| CN111392614A (en) * | 2019-01-02 | 2020-07-10 | 湖南中联重科建筑起重机械有限责任公司 | Standard knot, tower body and assembling method of standard knot of tower body |
| WO2023134115A1 (en) * | 2022-01-13 | 2023-07-20 | 中联重科建筑起重机械有限责任公司 | Mast section device and tower crane |
-
2013
- 2013-10-28 CN CN201320669709.1U patent/CN203513132U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107758488A (en) * | 2017-11-17 | 2018-03-06 | 重庆大安渝南重型钢结构工程有限公司 | A kind of closed type lifting machine load steel structure |
| CN111392614A (en) * | 2019-01-02 | 2020-07-10 | 湖南中联重科建筑起重机械有限责任公司 | Standard knot, tower body and assembling method of standard knot of tower body |
| WO2023134115A1 (en) * | 2022-01-13 | 2023-07-20 | 中联重科建筑起重机械有限责任公司 | Mast section device and tower 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |