CN204752033U - Tower machine balance arm pull rod connection structure - Google Patents
Tower machine balance arm pull rod connection structure Download PDFInfo
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- CN204752033U CN204752033U CN201420861822.4U CN201420861822U CN204752033U CN 204752033 U CN204752033 U CN 204752033U CN 201420861822 U CN201420861822 U CN 201420861822U CN 204752033 U CN204752033 U CN 204752033U
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- arm
- subassembly
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- set square
- pull rod
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Abstract
The utility model discloses a tower machine balance arm pull rod connection structure, including two isometric pull rod (1), pass through set -square subassembly (5) and arm -tie subassembly (3) side by side, the bottom of two pull rod (1) connect the balance arm, its top is called and adjustable the connection with two pore pairs of transition set -square subassembly (5) bottom level respectively, arm -tie subassembly (3) top connect top of the tower (2), the bottom is equipped with one and falls set -square (7), and pass through set -square subassembly (5) the top haplopore with should fall set -square (7) bottom haplopore and connected. Middle movable transition set -square subassembly has satisfied two pull rods and has received equilibrium of forces, has improved overall machine stability, change the constitution of two board subassemblies of bending in original arm -tie subassembly simultaneously, reduced processing technology, improved production efficiency, practiced thrift the cost.
Description
Technical field
The utility model relates to a kind of equilibrium arm bar jointing structure, is particularly useful for tower machine.
Background technology
Existing tower machine equilibrium arm pull bar and tower top connection mode are mainly connected by a baroque arm-tie assembly, as shown in Figure 1, equilibrium arm pull bar is two freestanding pull bars (1), as shown in Figures 2 and 3, mainly connect with the arm-tie assembly (3) of bending plate by tower top (2) place when installing, main by axle connection.This version affects complete machine safety performance, there will be following technical disadvantages: 1, require that equilibrium arm two parallel draw bar necessary length in manufacture is unified, accuracy requirement is too high, and difficulty of processing is large; 2, the corresponding bending plate assembly processing technology of arm-tie assembly requires high, and production efficiency is low; 3, two complicated girt discontinuity, or occur that a pull bar another pull bar stressed does not stress phenomenon, will affect the complete machine stability of tower machine, bring certain potential safety hazard.
Summary of the invention
For above-mentioned existing technical matters, the utility model provides a kind of tower machine equilibrium arm bar jointing structure, to improve complete machine safety performance, reduces the difficulty of production and processing technology.
For achieving the above object, the utility model provides a kind of tower machine equilibrium arm bar jointing structure, comprises two isometric pull bar, transition set square assembly and arm-tie assemblies side by side; The bottom of two described pull bars connects equilibrium arm, and its top is symmetrical with the horizontal holes of transition set square component bottom respectively and be adjustablely connected; Described arm-tie assembly top connects tower top, and bottom is provided with an inverted triangle plate, and the top single hole of transition set square assembly is connected with single hole bottom this inverted triangle plate.
Further, described transition set square assembly top single hole and the spacing of bottom level holes are 250-350mm.Preferred distance is 300mm.
Preferably, described transition set square assembly adopts high strength steel.
First the utility model welds an inverted triangle plate on baroque rod assembly, then equilibrium arm pull bar is connected for adjustable by a transition set square assembly with two pull bars, again the transition set square assembly of adjustable is connected with baroque inverted triangle plate, above assembling mode is the principle of work of equilibrium arm pull bar, the transition set square assembly of intermediate active formula meets two pull bars by equilibrium of forces,, improve complete machine stability; Change the formation of two bending plate assemblies in original arm-tie assembly simultaneously, reduce processing technology, enhance productivity, save cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of tower machine equilibrium arm pull bar;
Fig. 2 is the structural representation of tower machine equilibrium arm bar jointing structure in prior art;
Fig. 3 be in Fig. 2 A to postrotational structural representation;
Fig. 4 is the structural representation of the utility model equilibrium arm pull bar;
Fig. 5 be in Fig. 4 B to the structural representation that is connected with pull bar of transition set square assembly after rotating;
Fig. 6 connects the structural representation that set square is connected with arm-tie assembly in Fig. 4;
In figure: 1, pull bar, 2, tower top, 3, arm-tie assembly, 5, transition set square assembly, 7, inverted triangle plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 4 and Figure 5, the utility model comprises the obtained transition set square assembly 5 of two isometric pull bars 1 side by side, high strength steel and arm-tie assembly 3; The bottom of two described pull bars 1 connects equilibrium arm, and its top is symmetrical with transition set square assembly 5 bottom level holes respectively and be adjustablely connected; Described arm-tie assembly 3 top connects tower top 2, and bottom is provided with an inverted triangle plate 7, and the top single hole of transition set square assembly 5 is connected with single hole bottom this inverted triangle plate 7.
During assembling equilibrium arm pull bar 1, two pull bar 1 assemblies are first connected with transition set square assembly 5 by device, as shown in Figure 5, again the transition set square assembly 5 connecting pull bar 1 is connected with the arm-tie assembly 5 with inverted triangle plate 7, as shown in Figure 6, namely equilibrium arm pull rod device is assembled into, as shown in Figure 4.By the stressing conditions of adjustable two pull bars 1 of middle transition set square assembly 5, ensure two pull bar 1 uniform force.
By the application of this technology, the equilibrium arm pull rod device of QTZ80 in process of production efficiency significantly improves, and ensure that pull bar uniform force by transition set square assembly 5, improve complete machine stability, the structure of tower top 2 place arm-tie assembly 3 obtains optimization, has reference value very much to the design of other products simultaneously.
Claims (3)
1. a tower machine equilibrium arm bar jointing structure, is characterized in that, comprises two isometric pull bar (1), transition set square assembly (5) and arm-tie assemblies (3) side by side; The bottom of two described pull bars (1) connects equilibrium arm, and its top is symmetrical with transition set square assembly (5) bottom level holes respectively and be adjustablely connected; Described arm-tie assembly (3) top connects tower top (2), and bottom is provided with an inverted triangle plate (7), and the top single hole of transition set square assembly (5) is connected with this inverted triangle plate (7) bottom single hole.
2. a kind of tower machine equilibrium arm bar jointing structure according to claim 1, is characterized in that, described transition set square assembly (5) top single hole and the spacing of bottom level holes are 250-350mm.
3. a kind of tower machine equilibrium arm bar jointing structure according to claim 2, it is characterized in that, the spacing of described transition set square assembly (5) top single hole and the holes of bottom level is 300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861822.4U CN204752033U (en) | 2014-12-31 | 2014-12-31 | Tower machine balance arm pull rod connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861822.4U CN204752033U (en) | 2014-12-31 | 2014-12-31 | Tower machine balance arm pull rod connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204752033U true CN204752033U (en) | 2015-11-11 |
Family
ID=54466762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420861822.4U Active CN204752033U (en) | 2014-12-31 | 2014-12-31 | Tower machine balance arm pull rod connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204752033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477796A (en) * | 2014-12-31 | 2015-04-01 | 徐州建机工程机械有限公司 | Pull rod connecting structure for balance arm of tower crane |
-
2014
- 2014-12-31 CN CN201420861822.4U patent/CN204752033U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477796A (en) * | 2014-12-31 | 2015-04-01 | 徐州建机工程机械有限公司 | Pull rod connecting structure for balance arm of tower crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |