CN202687819U - Tower crane and connecting structure of upper bracket and steering tower thereof - Google Patents
Tower crane and connecting structure of upper bracket and steering tower thereof Download PDFInfo
- Publication number
- CN202687819U CN202687819U CN 201220391155 CN201220391155U CN202687819U CN 202687819 U CN202687819 U CN 202687819U CN 201220391155 CN201220391155 CN 201220391155 CN 201220391155 U CN201220391155 U CN 201220391155U CN 202687819 U CN202687819 U CN 202687819U
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- upper bracket
- tower
- connection structure
- slewing tower
- bolt
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Abstract
The utility model provides a tower crane and a connecting structure of an upper bracket and a steering tower thereof, wherein the upper bracket comprises a first side and a second side, the first side of the upper bracket is connected with the steering tower through a pin shaft, and the second side of the upper bracket is connected with the steering tower through a bolt. Due to the fact that the upper bracket is stably connected with the steering tower through the pin shaft and the bolt, on the one hand the steering tower is prevented from moving in the axial direction of the pin shaft, and on the other hand unsafe factors caused by the looseness of the bolt are eliminated. The tower crane and the connecting structure of the upper bracket and the steering tower thereof has the advantages of being simple in structure, convenient in installation, low in cost, and high in reliability.
Description
Technical field
The utility model relates to the tower crane field, more specifically, relates to the connection structure of a kind of tower crane and upper bracket thereof and slewing tower.
Background technology
For big-and-middle-sized tower crane, because its scantling of structure is larger, consider the factors such as transportation, manufacturing, upper bracket and slewing tower must be separated design.The slewing tower of big-and-middle-sized tower crane of the prior art and upper bracket have following three kinds of connection modes usually.
Fig. 1 to Fig. 3 shows the first connection structure of slewing tower and upper bracket.As shown in Figure 1 to Figure 3, the connection between slewing tower 20 and the upper bracket 10 adopts the mode that the first lug 61, the second lug 62 are connected with bearing pin to connect.Wherein, the first lug 61 is arranged on the upper bracket 10, and the second lug 62 is arranged on the slewing tower 20, thereby bearing pin 30 passes the first lug 61 and the second lug 62 couples together upper bracket 10 and slewing tower 20.Yet, in this connection structure, slewing tower 20 can be along the axial generation vibration of bearing pin 30, further, the pin-and-hole that the vibration of bearing pin 30 and rotation can cause on the first lug 61, the second lug 62, cooperate with bearing pin 30 is worn and enlarges, thereby causes safety problem.
Fig. 4 to Fig. 5 shows the second connection structure of slewing tower and upper bracket.To shown in Figure 6, slewing tower 20 is connected with upper bracket by bolt 40 connections such as Fig. 4.Although for kind of connection structure has solved the problem of slewing tower 20 vibrations, bolt 40 is loosening easily, as in time not fastening, safety problem can occur.
Fig. 6 to Fig. 8 shows the third connection structure of slewing tower and upper bracket.To shown in Figure 8, the connection between slewing tower 20 and the upper bracket 10 adopts articulation bolt 41 to connect such as Fig. 6.This connection structure needs to process respectively the articulation bolt hole that a plurality of relative positions are had relatively high expectations on slewing tower 20 and upper bracket 10, install very trouble, and the connection of articulation bolt 41 need be done locking processing, its screw thread need be done antirust processing, has complex structure, the high shortcoming of processing use cost.
The utility model content
The utility model aims to provide the connection structure of a kind of tower crane and upper bracket and slewing tower, and slewing tower is connected the problem unreliable, that cost is high in the prior art with upper bracket to solve.
For solving the problems of the technologies described above, according to first aspect of the present utility model, provide a kind of connection structure of upper bracket and slewing tower of tower crane, upper bracket comprises the first side and the second side, the first side of upper bracket is connected with slewing tower by bearing pin; The second side of upper bracket is connected with slewing tower by bolt.
Further, the first side of upper bracket is the side of crane arm of the close tower crane of upper bracket, and the second side of upper bracket is the side of equilibrium arm of the close tower crane of upper bracket.
Further, the axis direction of bearing pin is perpendicular to the axis direction of bolt.
Further, the bearing pin along continuous straight runs arranges, and bolt vertically arranges.
Further, the second side of upper bracket also is connected with slewing tower by locating dowel pin.
Further, locating dowel pin is captiveed joint with upper bracket.
Further, be provided with the knock hole that cooperates with locating dowel pin on the slewing tower, knock hole comprises two straight flanges that are parallel to each other and two connection sides, and by one connection side connection, the bearing of trend of straight flange is vertical with the axis of bearing pin respectively in the corresponding end of two straight flanges.
Further, connection side is arc-shaped side.
Further, bolt is a plurality of, and a plurality of bolts are around the locating dowel pin setting.
Further, the first side of upper bracket is provided with the first lug, is provided with the second lug that matches with the first lug on the slewing tower, and bearing pin passes the first lug and the second lug.
Further, the second side of upper bracket is provided with the first mounting flange, is provided with the second mounting flange that matches with the first mounting flange on the slewing tower, the first mounting flange be connected mounting flange and removably connect by bolt.
According to second aspect of the present utility model, a kind of tower crane is provided, comprise upper bracket and slewing tower, this upper bracket is connected by above-mentioned connection structure with slewing tower.
The utility model can be reliably connected upper bracket and slewing tower by bearing pin and bolt, can prevent that slewing tower is at the axial motion of bearing pin on the one hand, on the other hand, safety hazard in the time of also can eliminating bolt looseness has characteristics simple in structure, easy for installation, that cost is low, reliability is high.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the first connection structure of slewing tower and upper bracket in the prior art;
Fig. 2 has schematically shown the left view of Fig. 1;
Fig. 3 has schematically shown the A-A of Fig. 1 to part sectional view;
Fig. 4 has schematically shown the second connection structure of slewing tower and upper bracket in the prior art;
Fig. 5 has schematically shown the A-A of Fig. 4 to part sectional view;
Fig. 6 has schematically shown the third connection structure of slewing tower and upper bracket in the prior art;
Fig. 7 has schematically shown the left view of Fig. 6;
Fig. 8 has schematically shown the A-A of Fig. 7 to part sectional view;
Fig. 9 has schematically shown the connection structure of slewing tower and upper bracket in the utility model;
Figure 10 has schematically shown the A of the upper bracket among Fig. 9 to view; And
Figure 11 has schematically shown the B of the second mounting flange among Fig. 9 to view.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As first aspect of the present utility model, provide a kind of connection structure of upper bracket and slewing tower of tower crane.To shown in Figure 11, upper bracket 10 comprises the first side and the second side such as Fig. 9, and the first side of upper bracket 10 is connected with slewing tower 20 by bearing pin 30; The second side of upper bracket 10 is connected with slewing tower 20 by bolt 40.Preferably, the axis direction of described bearing pin 30 is perpendicular to the axis direction of bolt 40; Further, preferably, bearing pin 30 along continuous straight runs settings, bolt 40 vertically arranges.Preferably, bolt 40 is a plurality of, and a plurality of bolts 40 arrange around locating dowel pin 50.
Please refer to Fig. 9 to Figure 11, the first side of upper bracket 10 is connected by bearing pin 30 with slewing tower 20, reaches up and down motion on the left and right directions thereby define the first side of upper bracket 10 and slewing tower 20 at Fig. 9.Simultaneously, the second side of upper bracket 10 is connected by bolt 40 with slewing tower 20, thereby defines the first side of upper bracket 10 and slewing tower 20 along axial the moving of bearing pin 30, and has therefore limited the motion of slewing tower 20 at six direction.As seen, the utility model can be reliably connected upper bracket and slewing tower by bearing pin and bolt, in case the non-return capstan head in the axial motion of bearing pin, has characteristics simple in structure, easy for installation, that cost is low, reliability is high.
Preferably, the first side of upper bracket 10 is sides of crane arm of the close tower crane of upper bracket 10, and the second side of upper bracket 10 is sides of equilibrium arm of the close tower crane of upper bracket 10.Because bolt 40 is arranged on the side near equilibrium arm, therefore, a side of bolt 40 is subject to the pressure of the counterbalanced weight on the equilibrium arm all the time, and is loosening even bolt 40 has occured, upper bracket 10 and slewing tower 20 are thrown off in the second side, thus the safety that has improved equipment.In addition, bolt 40 is arranged on a side near equilibrium arm, can also prevents from bearing pin 30 is arranged on equilibrium arm one side and bolt 40 when being arranged near crane arm one side, when bolt 40 is loosening, the possibility of under the effect of counterbalanced weight, tumbling.
Preferably, please refer to Fig. 9 and Figure 10, the second side of upper bracket 10 also is connected with slewing tower 20 by locating dowel pin 50, can further limit the vibration of slewing tower 20 by locating dowel pin 50.
Preferably, please refer to Fig. 9 and Figure 11, be provided with the knock hole 21 that cooperates with locating dowel pin 50 on the slewing tower 20, knock hole 21 comprises two straight flanges that are parallel to each other and two connection sides, one connection side connection is passed through respectively in the corresponding end of two straight flanges, wherein, the bearing of trend of straight flange is vertical with the axis of bearing pin 30, and namely knock hole 21 is slotted hole (particularly waist shaped holes).Especially, connection side is arc-shaped side, can certainly be other shape.Knock hole 21 is designed to slotted hole, can be convenient in the time of installation, do not need locating dowel pin 50 is cooperated accurately with slotted hole.In addition, because knock hole 21 is perpendicular to the axial setting of bearing pin 30, therefore can utilize two straight flanges of knock hole 21, further limit slewing tower 20 along the axial motion of bearing pin 30.
Preferably, locating dowel pin 50 is captiveed joint with upper bracket 10, such as the welding etc.Locating dowel pin 50 is fixed on the upper bracket 10, and knock hole 21 is arranged on the slewing tower 20, in the time of can preventing from being arranged on knock hole 21 on the upper bracket 10 on the one hand, rainwater etc. enter the problem of upper bracket 10, on the other hand, in the time of can also preventing from being fixed to locating dowel pin 50 on the slewing tower 20 (this moment, locating dowel pin 50 protruded from the lower surface of slewing tower 20), slewing tower 20 is disassembled when being positioned over ground or transportation, damage the problem of locating dowel pin 50.
Preferably, the first side of upper bracket 10 is provided with the first lug 61, is provided with the second lug 62 that matches with the first lug 61 on the slewing tower 20, and bearing pin 30 passes the first lug 61 and the second lug 62.So, just upper bracket 10 and slewing tower 20 can be coupled together by the first lug 61 and the second lug 62.
Preferably, the second side of upper bracket 10 is provided with the first mounting flange 63, is provided with the second mounting flange 64, the first mounting flanges 63 of matching with the first mounting flange 63 on the slewing tower 20 and is connected mounting flange 64 and removably connects by bolt 40.So, just upper bracket 10 and slewing tower 20 can be coupled together by the first mounting flange 63 and the second mounting flange 64.
As second aspect of the present utility model, a kind of tower crane is provided, comprise upper bracket 10 and slewing tower 20, upper bracket 10 is connected by above-mentioned connection structure with slewing tower 20.
Therefore tower crane in the utility model, designs so that upper bracket can separate with slewing tower owing to adopted this connection structure so that make, transportation, processing, it assembles without specific (special) requirements, and easier to be in place when assembling.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and 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., all should be included within the protection domain of the present utility model.
Claims (12)
1. the connection structure of the upper bracket of a tower crane and slewing tower, described upper bracket (10) comprises the first side and the second side, it is characterized in that,
The first side of described upper bracket (10) is connected with described slewing tower (20) by bearing pin (30);
The second side of described upper bracket (10) is connected with described slewing tower (20) by bolt (40).
2. connection structure according to claim 1, it is characterized in that, described first side of described upper bracket (10) is the side of crane arm of the close described tower crane of described upper bracket (10), and described second side of described upper bracket (10) is the side of equilibrium arm of the close described tower crane of described upper bracket (10).
3. connection structure according to claim 1 is characterized in that, the axis direction of described bearing pin (30) is perpendicular to the axis direction of described bolt (40).
4. connection structure according to claim 1 is characterized in that, described bearing pin (30) along continuous straight runs setting, and described bolt (40) vertically arranges.
5. connection structure according to claim 1 is characterized in that, the second side of described upper bracket (10) also is connected with described slewing tower (20) by locating dowel pin (50).
6. connection structure according to claim 5 is characterized in that, described locating dowel pin (50) is captiveed joint with described upper bracket (10).
7. connection structure according to claim 6, it is characterized in that, be provided with the knock hole (21) that cooperates with described locating dowel pin (50) on the described slewing tower (20), described knock hole (21) comprises two straight flanges that are parallel to each other and two connection sides, the corresponding end of described two straight flanges connects by a described connection side respectively, and the bearing of trend of described straight flange is vertical with the axis of described bearing pin (30).
8. connection structure according to claim 7 is characterized in that, described connection side is arc-shaped side.
9. each described connection structure in 8 according to claim 5 is characterized in that described bolt (40) is a plurality of, and described a plurality of bolts (40) arrange around described locating dowel pin (50).
10. each described connection structure in 8 according to claim 1, it is characterized in that, the first side of described upper bracket (10) is provided with the first lug (61), be provided with the second lug (62) that matches with described the first lug (61) on the described slewing tower (20), described bearing pin (30) passes described the first lug (61) and described the second lug (62).
11. each described connection structure in 8 according to claim 1, it is characterized in that, the second side of described upper bracket (10) is provided with the first mounting flange (63), be provided with the second mounting flange (64) that matches with described the first mounting flange (63) on the described slewing tower (20), described the first mounting flange (63) be connected the second mounting flange (64) and removably connect by described bolt (40).
12. a tower crane comprises upper bracket (10) and slewing tower (20), it is characterized in that described upper bracket (10) is connected by each described connection structure in the claim 1 to 11 with slewing tower (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391155 CN202687819U (en) | 2012-08-08 | 2012-08-08 | Tower crane and connecting structure of upper bracket and steering tower thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391155 CN202687819U (en) | 2012-08-08 | 2012-08-08 | Tower crane and connecting structure of upper bracket and steering tower thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202687819U true CN202687819U (en) | 2013-01-23 |
Family
ID=47543467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220391155 Expired - Lifetime CN202687819U (en) | 2012-08-08 | 2012-08-08 | Tower crane and connecting structure of upper bracket and steering tower thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202687819U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449319A (en) * | 2013-09-06 | 2013-12-18 | 中联重科股份有限公司 | Lifting arm and crane |
| CN106365051A (en) * | 2016-11-01 | 2017-02-01 | 徐州建机工程机械有限公司 | Tower top and upper supporting base connecting structure of tower crane |
-
2012
- 2012-08-08 CN CN 201220391155 patent/CN202687819U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449319A (en) * | 2013-09-06 | 2013-12-18 | 中联重科股份有限公司 | Lifting arm and crane |
| CN106365051A (en) * | 2016-11-01 | 2017-02-01 | 徐州建机工程机械有限公司 | Tower top and upper supporting base connecting structure of 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 |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |