CN103601082B - Crane and arm rising method thereof - Google Patents
Crane and arm rising method thereof Download PDFInfo
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- CN103601082B CN103601082B CN201310595403.0A CN201310595403A CN103601082B CN 103601082 B CN103601082 B CN 103601082B CN 201310595403 A CN201310595403 A CN 201310595403A CN 103601082 B CN103601082 B CN 103601082B
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Abstract
The invention discloses a crane and an arm rising method thereof. The crane comprises a rotary table (1), a main arm (2), a rear support rod (3), an amplitude variation auxiliary arm (4), a mast (5), a main arm pull plate (6) and a rear pull plate (7); the main arm and the mast are pivoted and installed on the rotary table; the rear support rod and the main arm are connected; the amplitude variation auxiliary arm and the rear support rod are connected; the main arm pull plate is connected between the mast and the main arm; the first end of the rear pull plate is connected with the rear support rod; the crane also comprises a rear pull plate connecting structure and a foldable pull plate component. The method comprises the following steps: firstly, connecting the second end of the rear pull plate and the mast; secondly, rising the arm to the main arm so as to form a preset angle with the horizontal level, and disconnecting the rear pull plate and the mast; and thirdly, rising the arm continuously according to the operation working condition of the crane. According to the scheme, because the arm is risen to the main arm to form the preset angle with the horizontal level, the rear pull plate (7) cannot interfere constructional elements on the rotary table or the main arm.
Description
Technical field
The present invention relates to engineering machinery field, particularly, relate to a kind of hoisting crane and play arm method.
Background technology
For the hoisting crane with non-telescoping formula principal arm, arm-tie is fixed on principal arm thereafter, and when principal arm plays arm, rear arm-tie maintains static relative to principal arm.
But for the hoisting crane with telescopic main arm, because its principal arm has Telescopic, rear arm-tie can not be fixed on principal arm.When principal arm plays arm, in order to avoid rear arm-tie and main arm structure part or turntable structure part interfere, whipline must be used to be sling by rear arm-tie rising in arm process, this project wastes time and energy.Further, after main arm telescoping, when variable-amplitude auxiliary arm luffing moves to job position, operating personal is needed to be fixed on mast by rear arm-tie.Now, because principal arm has played arm and principal arm is longer, the fixed point on mast is in higher position, and operating personal needs aloft work, makes troubles and potential safety hazard to operation.
Summary of the invention
What the object of this invention is to provide a kind of hoisting crane plays arm method, and the method can complete arm without the need to using other accessory equipment, and has higher safety.
To achieve these goals, what the invention provides a kind of hoisting crane plays arm method, described hoisting crane comprises turntable, principal arm, rear pole, variable-amplitude auxiliary arm, mast, principal arm arm-tie and rear arm-tie, described principal arm and described mast are pivoted on described turntable, described rear pole is connected with described principal arm, described variable-amplitude auxiliary arm is connected with described rear pole, described principal arm arm-tie is connected between described mast and described principal arm, the first end of described rear arm-tie is connected with described rear pole, wherein, described hoisting crane also comprises post-tensioning board connecting structure and folding arm-tie assembly, described post-tensioning board connecting structure and described arm-tie assembly are arranged on described turntable, described method comprises the steps: first, second end of described rear arm-tie is connected with described mast, the second, play arm to described principal arm and become predetermined angular with horizontal surface, remove the connection of described rear arm-tie and described mast, 3rd, a continuation arm step is carried out according to the working condition that hoisting crane carries out, wherein when described hoisting crane is the full reduced working condition of principal arm, continue arm and played arm completion status to the full reduced working condition of described principal arm, connected described rear arm-tie and described post-tensioning board connecting structure, or when described hoisting crane be principal arm stretch out working condition time, continue arm to described principal arm and horizontal plane, and then connect described rear arm-tie and described arm-tie assembly, stretch out described principal arm and make arm-tie assembly follow the stretching, extension of this principal arm until described principal arm stretches out an arm completion status of working condition, or, connect described rear arm-tie and described arm-tie assembly, and then continued arm to described principal arm and horizontal plane, stretch out described principal arm and make arm-tie assembly follow the stretching, extension of this principal arm until described principal arm stretches out an arm completion status of working condition.
Preferably, in described second step, arm is played under the state becoming described predetermined angular with horizontal surface at described principal arm, second end and the height of the point of connection of described mast of described rear arm-tie are in operating personal and can operate to remove described rear arm-tie and the position be connected between described mast, and in described third step, the miscellaneous part of described rear arm-tie and described hoisting crane is not interfered mutually.
Preferably, described principal arm becomes predetermined angular during with horizontal surface, described rear arm-tie is vertical or be approximately perpendicular to horizontal surface.
Preferably, described predetermined angular is 70 ° ~ 90 °.
Preferably, an arm completion status of the full reduced working condition of described principal arm is the state of described principal arm and horizontal plane; The arm completion status that rises that described principal arm stretches out working condition is described principal arm and horizontal plane and described principal arm extends the state of Len req.
Preferably, described arm-tie assembly comprises the more piece arm-tie be connected to each other.
Preferably, described post-tensioning board connecting structure is hinged seat and the bearing pin be arranged on this hinged seat.
Preferably, in described first step, connect the second end of described rear arm-tie and described mast by flexible connecting member.
The present invention also provides a kind of hoisting crane, comprise turntable, principal arm, rear pole, variable-amplitude auxiliary arm, mast, principal arm arm-tie and rear arm-tie, described principal arm and described mast are pivoted on described turntable, described rear pole is connected with described principal arm, described variable-amplitude auxiliary arm is connected with described rear pole, described principal arm arm-tie is connected between described mast and described principal arm, the first end of described rear arm-tie is connected with described rear pole, wherein, described turntable is provided with post-tensioning board connecting structure and folding arm-tie assembly, when described hoisting crane is the full reduced working condition of principal arm, second end of described rear arm-tie can be connected to described mast or described post-tensioning board connecting structure, when described hoisting crane be principal arm stretch out working condition time, the second end of described rear arm-tie can be connected to described mast or described arm-tie assembly.
Preferably, described hoisting crane also comprises flexible connecting member, and the second end of described rear arm-tie can be connected to described mast by described flexible connecting member.
Pass through technique scheme, rising before arm becomes described predetermined angular to principal arm with horizontal surface, rear arm-tie is connected between rear pole and mast, rear arm-tie two ends suffer restraints, make rear arm-tie can not free motion, thus at least playing arm to before becoming described predetermined angular with horizontal surface at principal arm, rear arm-tie can not interfere with the framing member on turntable or principal arm.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the schematic diagram of hoisting crane before principal arm plays arm of the specific embodiment of the present invention;
Fig. 2 is the hoisting crane of the specific embodiment of the present invention plays in arm schematic diagram at principal arm;
Fig. 3 is the schematic diagram of hoisting crane after principal arm plays arm of the specific embodiment of the present invention;
Fig. 4 is the partial enlarged drawing of Fig. 2;
Fig. 5 is the partial enlarged drawing of Fig. 3.
Description of reference numerals
1 turntable 2 principal arm
3 rear pole 4 variable-amplitude auxiliary arms
5 mast 6 principal arm arm-ties
Arm-tie 8 arm-tie assembly after 7
9 flexible connecting member 10 post-tensioning board connecting structures
11 connect bearing pin
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality of use such as " upper and lower " typically refers to higher position as shown in Figure 3 and lower position.
As shown in Figure 1-Figure 3, an aspect of of the present present invention provides an a kind of arm method of hoisting crane, described hoisting crane comprises turntable 1, principal arm 2, rear pole 3, variable-amplitude auxiliary arm 4, mast 5, principal arm arm-tie 6 and rear arm-tie 7, described principal arm 2 and described mast 5 are pivoted on described turntable 1, described rear pole 3 is connected with described principal arm 2, described variable-amplitude auxiliary arm 4 is connected with described rear pole 3, described principal arm arm-tie 6 is connected between described mast 5 and described principal arm 2, the first end (upper end) of described rear arm-tie 7 is connected with described rear pole 3, wherein, described hoisting crane also comprises post-tensioning board connecting structure 10 and folding arm-tie assembly 8, described post-tensioning board connecting structure 10 and described arm-tie assembly 8 are arranged on described turntable 1, described method comprises the steps:
The first, the second end of described rear arm-tie 7 is connected with described mast 5;
The second, play arm to described principal arm 2 and become predetermined angle theta with horizontal surface, remove the connection of described rear arm-tie 7 and described mast 5;
3rd, carry out a continuation arm step according to the working condition that hoisting crane carries out, wherein
When described hoisting crane is the full reduced working condition of principal arm, continues arm and played arm completion status to the full reduced working condition of described principal arm, connected described rear arm-tie 7 and described post-tensioning board connecting structure 10; Or
When described hoisting crane be principal arm stretch out working condition time, continue arm to described principal arm 2 and horizontal plane, and then connect described rear arm-tie 7 and described arm-tie assembly 8, stretch out described principal arm 2 and make arm-tie assembly 8 follow this principal arm 2 stretch until described principal arm stretch out working condition play arm completion status; Or, connect described rear arm-tie 7 and described arm-tie assembly 8, and then continued arm extremely described principal arm 2 and horizontal plane, stretch out described principal arm 2 and make arm-tie assembly 8 follow this principal arm 2 to stretch until described principal arm stretches out an arm completion status of working condition.
More specifically, described principal arm stretches out working condition and comprises principal arm and entirely stretch working condition and principal arm stretches out but the working condition do not stretched out completely.When described principal arm stretch out working condition be principal arm entirely stretch working condition time, preferably, before being also included in principal arm 2 arms, connect the step of arm-tie assembly 8 and post-tensioning board connecting structure 10; When described principal arm stretch out working condition be principal arm stretch out but the working condition do not stretched out completely time, also comprise the extension elongation according to principal arm 2, by the step that a certain joint arm-tie of arm-tie assembly 8 is connected with post-tensioning board connecting structure 10.
Pass through technique scheme, rising before arm becomes described predetermined angle theta to principal arm 2 with horizontal surface, rear arm-tie 7 is connected between rear pole 3 and mast 5, rear arm-tie 7 two ends suffer restraints, make rear arm-tie 7 can not free motion, thus at least before principal arm 2 arms extremely become described predetermined angle theta with horizontal surface, rear arm-tie 7 can not interfere with the framing member on turntable 1 or principal arm 2.
Preferably, in described second step, at described principal arm 2 arms under the state becoming described predetermined angular with horizontal surface, second end and the height of the point of connection of described mast 5 of described rear arm-tie 7 are in operating personal and can operate to remove the position be connected between described rear arm-tie 7 with described mast 5, thus handled easily personnel remove connection.More preferably, in described third step, described rear arm-tie 7 is not interfered mutually with the miscellaneous part of described hoisting crane, thus makes in whole arm process, and rear arm-tie 7 does not interfere with the framing member on turntable 1 or principal arm 2.
Here, after removing after connection between arm-tie 7 and mast 5, can not there is beat in rear arm-tie 7, or beat can occur but beat amplitude is less, thus can not touch other parts.
More preferably, when playing arm to principal arm 2 and becoming described predetermined angular with horizontal surface, rear arm-tie 7 is substantially vertical with horizontal surface, the connection of arm-tie 7 and mast 5 after now removing, can not beat be there is in rear arm-tie 7, and the continuation subsequently rises in arm process, the rear arm-tie 7 that only upper end is fixed will keep the state with horizontal plane under gravity, thus when making the connection of arm-tie 7 and mast 5 after releasing and when rear arm-tie 5 is connected to post-tensioning board connecting structure 10 or arm-tie assembly 8, avoid, because of the swing of rear arm-tie 5, security threat is caused to operating personal.
Here it should be noted that, due under the full reduced working condition of principal arm, hoisting crane carries out work under principal arm 2 keeps retracted mode, and therefore, an arm completion status of the full reduced working condition of described principal arm of the present invention's definition is the state of described principal arm 2 and horizontal plane.Under principal arm stretches out working condition, hoisting crane at principal arm 2 arms to carrying out work with horizontal plane after extending out to the length required for work, therefore, the described principal arm of the present invention's definition stretches out the arm completion status that rises of working condition is that described principal arm 2 is with horizontal plane and described principal arm 2 extends the state of Len req.
When described hoisting crane is the full reduced working condition of principal arm, arm has been continued extremely with the process of horizontal plane at principal arm 2, second end (lower end) of rear arm-tie 7 moves near post-tensioning board connecting structure 10, when principal arm 2 and horizontal plane, second end of rear arm-tie 7 is connected to post-tensioning board connecting structure 10, thus make rear arm-tie 7 can apply pulling force to variable-amplitude auxiliary arm 4, to balance the gravity that variable-amplitude auxiliary arm 4 is subject to.
When described hoisting crane be principal arm stretch out working condition time, with above-mentioned full reduced working condition unlike, when principal arm 2 and horizontal plane, second end of rear arm-tie 7 is connected to arm-tie assembly 8, then stretching out described principal arm 2 and making arm-tie assembly 8 follow this principal arm 2 stretches until described principal arm 2 extends Len req, then according to the extension elongation of principal arm 2, the a certain joint arm-tie of described arm-tie assembly 8 is connected with described post-tensioning board connecting structure 10, thus make rear arm-tie 7 can apply pulling force to variable-amplitude auxiliary arm 4, to balance the gravity that variable-amplitude auxiliary arm 4 is subject to.
Particularly, described predetermined angle theta is 70 ° ~ 90 °, that is, when principal arm 2 arms are to when to become 70 ° ~ 90 ° with horizontal surface, rear arm-tie 7 roughly with horizontal plane.Here, rear arm-tie 7 is approximately perpendicular to the angle that horizontal surface can be understood as rear arm-tie 7 place straight line and horizontal surface is 85 ° ~ 95 °.
As shown in Figure 5, rear arm-tie 7 and arm-tie assembly 8 can adopt various structure, preferably, described rear arm-tie 7 and described arm-tie assembly 8 comprise the more piece arm-tie be connected to each other respectively, the convenient different length according to principal arm 2 is dismantled or is connected to form the rear arm-tie 7 of corresponding length, wherein, the arm-tie assembly 8 be connected on rear arm-tie 7 forms a part for rear arm-tie 7, thus can apply stable pulling force to rear pole 3.
As shown in Figure 5, post-tensioning board connecting structure 10 can adopt various forms and structure, preferably, and the bearing pin that described post-tensioning board connecting structure 10 is hinged seat and is arranged on this hinged seat.Second end of rear arm-tie 7 by pinned connection on hinged seat, thus for convenience detach and fixing, and be connected firmly, not easily depart from.
Although not shown, rear arm-tie 7 can directly be connected with mast 5, or is connected with mast 5 by other rigid connector.But, in this case, the position of the point of connection of rear arm-tie 7 and mast 5 or described rigid connector may be relatively high, operating personal is stood on turntable 1 be difficult to touch described point of connection to remove connection, and, playing arm in the process of described predetermined angular, rear arm-tie 7 can occur stubborn curved, easily causes damage to rear arm-tie 7.
Therefore, as shown in Figure 1, Figure 2 and Figure 4, according to the preferred embodiment of the present invention, in described first step, second end (lower end) of described rear arm-tie 7 and described mast 5 is connected by flexible connecting member 9.Particularly, as shown in Figure 4, can arrange and be connected bearing pin 11 on the second end of rear arm-tie 7 with mast 5, the two ends of flexible connecting member 9 can be set in and connect on bearing pin 11.As shown in Figure 4, by the second end and the described mast 5 that use flexible connecting member 9 to connect described rear arm-tie 7, the height of point of connection can be reduced, thus handled easily personnel remove the connection of rear arm-tie 7 and mast 5.Further, because flexible connecting member 9 can stretch, thus the effect of the rear arm-tie 7 of protection can be played.
According to a further aspect in the invention, a kind of hoisting crane is provided, comprise turntable 1, principal arm 2, rear pole 3, variable-amplitude auxiliary arm 4, mast 5, principal arm arm-tie 6 and rear arm-tie 7, described principal arm 2 and described mast 5 are pivoted on described turntable 1, described rear pole 3 is connected with described principal arm 2, described variable-amplitude auxiliary arm 4 is connected with described rear pole 3, described principal arm arm-tie 6 is connected between described mast 5 and described principal arm 2, the first end of described rear arm-tie 7 is connected with described rear pole 3, wherein, described turntable 1 is provided with post-tensioning board connecting structure 10 and folding arm-tie assembly 8, when described hoisting crane is the full reduced working condition of principal arm, second end of described rear arm-tie 7 can be connected to described mast 5 or described post-tensioning board connecting structure 10, when described hoisting crane be principal arm stretch out working condition time, the second end of described rear arm-tie 7 can be connected to described mast 5 or described arm-tie assembly 8.
Preferably, described hoisting crane also comprises flexible connecting member 9, and the second end of described rear arm-tie 7 can be connected to described mast 5 by flexible connecting member 9.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. an arm method of a hoisting crane, described hoisting crane comprises turntable (1), principal arm (2), rear pole (3), variable-amplitude auxiliary arm (4), mast (5), principal arm arm-tie (6) and rear arm-tie (7), described principal arm (2) and described mast (5) are pivoted on described turntable (1), described rear pole (3) is connected with described principal arm (2), described variable-amplitude auxiliary arm (4) is connected with described rear pole (3), described principal arm arm-tie (6) is connected between described mast (5) and described principal arm (2), the first end of described rear arm-tie (7) is connected with described rear pole (3), it is characterized in that, described hoisting crane also comprises post-tensioning board connecting structure (10) and folding arm-tie assembly (8), described post-tensioning board connecting structure (10) and described arm-tie assembly (8) are arranged on described turntable (1), described method comprises the steps:
The first, the second end of described rear arm-tie (7) is connected with described mast (5);
The second, play arm to described principal arm (2) and become predetermined angular (θ) with horizontal surface, remove the connection of described rear arm-tie (7) and described mast (5);
3rd, carry out a continuation arm step according to the working condition that hoisting crane carries out, wherein
When described hoisting crane is the full reduced working condition of principal arm, continues arm and played arm completion status to the full reduced working condition of described principal arm, connected described rear arm-tie (7) and described post-tensioning board connecting structure (10); Or
When described hoisting crane be principal arm stretch out working condition time, continue arm to described principal arm (2) and horizontal plane, and then connect described rear arm-tie (7) and described arm-tie assembly (8), stretch out described principal arm (2) and make arm-tie assembly (8) follow this principal arm (2) stretching, extension until described principal arm stretches out an arm completion status of working condition; Or, connect described rear arm-tie (7) and described arm-tie assembly (8), and then continued arm to described principal arm (2) and horizontal plane, stretch out described principal arm (2) and make arm-tie assembly (8) follow this principal arm (2) stretching, extension until described principal arm stretches out an arm completion status of working condition.
2. an arm method of hoisting crane according to claim 1, it is characterized in that, in described second step, arm is played under the state becoming described predetermined angular (θ) with horizontal surface at described principal arm (2), second end and the height of the point of connection of described mast (5) of described rear arm-tie (7) are in operating personal and can operate to remove described rear arm-tie (7) and the position be connected between described mast (5), and in described third step, described rear arm-tie (7) is not interfered mutually with the framing member on described turntable (1) or described principal arm (2).
3. hoisting crane according to claim 2 play arm method, it is characterized in that, described principal arm (2) becomes predetermined angular (θ) during with horizontal surface, described rear arm-tie (7) is vertically or be approximately perpendicular to horizontal surface.
4. an arm method of hoisting crane according to claim 1, it is characterized in that, described predetermined angular (θ) is 70 ° ~ 90 °.
5. an arm method of hoisting crane according to claim 1, is characterized in that, an arm completion status of the full reduced working condition of described principal arm is the state of described principal arm (2) and horizontal plane; Described principal arm stretch out working condition to play arm completion status be described principal arm (2) with horizontal plane and described principal arm (2) extends the state of Len req.
6. an arm method of hoisting crane according to claim 1, it is characterized in that, described arm-tie assembly (8) comprises the more piece arm-tie be connected to each other.
7. an arm method of hoisting crane according to claim 1, is characterized in that, the bearing pin that described post-tensioning board connecting structure (10) is hinged seat and is arranged on this hinged seat.
8. an arm method of hoisting crane as claimed in any of claims 1 to 7, it is characterized in that, in described first step, connected the second end and the described mast (5) of described rear arm-tie (7) by flexible connecting member (9).
9. a hoisting crane, comprise turntable (1), principal arm (2), rear pole (3), variable-amplitude auxiliary arm (4), mast (5), principal arm arm-tie (6) and rear arm-tie (7), described principal arm (2) and described mast (5) are pivoted on described turntable (1), described rear pole (3) is connected with described principal arm (2), described variable-amplitude auxiliary arm (4) is connected with described rear pole (3), described principal arm arm-tie (6) is connected between described mast (5) and described principal arm (2), the first end of described rear arm-tie (7) is connected with described rear pole (3), it is characterized in that, described turntable (1) is provided with post-tensioning board connecting structure (10) and folding arm-tie assembly (8),
When described hoisting crane is the full reduced working condition of principal arm, the second end of described rear arm-tie (7) can be connected to described mast (5) or described post-tensioning board connecting structure (10);
When described hoisting crane be principal arm stretch out working condition time, the second end of described rear arm-tie (7) can be connected to described mast (5) or described arm-tie assembly (8).
10. hoisting crane according to claim 9, it is characterized in that, described hoisting crane also comprises flexible connecting member (9), and the second end of described rear arm-tie (7) can be connected to described mast (5) by described flexible connecting member (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310595403.0A CN103601082B (en) | 2013-11-22 | 2013-11-22 | Crane and arm rising method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310595403.0A CN103601082B (en) | 2013-11-22 | 2013-11-22 | Crane and arm rising method thereof |
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| CN103601082A CN103601082A (en) | 2014-02-26 |
| CN103601082B true CN103601082B (en) | 2015-06-17 |
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| CN201310595403.0A Active CN103601082B (en) | 2013-11-22 | 2013-11-22 | Crane and arm rising method thereof |
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| CN107601304B (en) * | 2017-10-18 | 2024-06-14 | 徐工集团工程机械股份有限公司 | Pulling plate system for fixing working condition of auxiliary arm |
| CN108792969B (en) * | 2018-07-06 | 2019-09-13 | 广西南宁巨缘合工程机械有限公司 | A kind of Lifting device of crane |
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| CN108821135B (en) * | 2018-07-06 | 2019-10-01 | 泉州台商投资区嘉尚网络科技有限公司 | A kind of hanging apparatus for Large-scale Wind Turbines installation |
| CN109516391B (en) * | 2019-01-11 | 2020-06-19 | 徐州重型机械有限公司 | Multistage oil cylinder turnover mechanism and crane |
| CN111689409A (en) * | 2020-06-22 | 2020-09-22 | 三一汽车起重机械有限公司 | Pulling plate assembly, super-lifting device and crane |
| CN112811329B (en) * | 2021-02-04 | 2023-06-23 | 浙江三一装备有限公司 | Crane auxiliary arm mounting method and crane |
| CN113501447A (en) * | 2021-07-08 | 2021-10-15 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane and method for lifting main arm of crane |
| CN115744676B (en) * | 2022-12-14 | 2023-08-22 | 浙江三一装备有限公司 | Lifting equipment and lifting arm method |
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| CN103601082A (en) | 2014-02-26 |
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