CN203754310U - Turntable connecting structure and crawler crane with same - Google Patents
Turntable connecting structure and crawler crane with same Download PDFInfo
- Publication number
- CN203754310U CN203754310U CN201420157804.8U CN201420157804U CN203754310U CN 203754310 U CN203754310 U CN 203754310U CN 201420157804 U CN201420157804 U CN 201420157804U CN 203754310 U CN203754310 U CN 203754310U
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- CN
- China
- Prior art keywords
- turntable
- screw rod
- connection structure
- pipe link
- crawler crane
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- 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
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- 238000003466 welding Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000003793 centrosome Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
The utility model relates to a turntable connecting structure for a crawler crane, and the turntable connecting structure comprises a first connecting rod and a second connecting rod, wherein the first and second connecting rods are respectively connected with a turntable rear-left section and a turntable rear-right section, the first and second connecting rods are connected by virtue of a length adjusting device, and the length adjusting device is in threaded connection with at least one of the first and second connecting rods. According to the utility model, by virtue of the length adjusting device, the length between the turntable rear-left section and the turntable rear-right section is adjustable, and can be adjusted according to the actual installation width between left and right turntables, so that the turntable connecting structure is removed and installed conveniently, and the safety of use can be improved. In addition, the utility model also provides a crawler crane with the turntable connecting structure.
Description
Technical field
The utility model relates to hoisting crane field, particularly relates to a kind of ultra-large type crawler crane and turntable connection structure thereof.
Background technology
Hoisting crane, as large lifting equipment, has been widely used in various engineering constructions, and its intermediate station is the key construction part of getting on or off the bus for connecting hoisting crane, is the important composition parts of hoisting crane.
The turntable of the crawler crane (referring generally to 3000 tonnes) of existing super-tonnage is made up of many parts such as turntable leading portion, turntable centrosome, turntable rear right section, turntable rear left sections conventionally.Wherein, turntable rear right section and turntable rear left section are arranged on the rear portion of turntable leading portion by bearing pin oil cylinder, and turntable centrosome is arranged on the bottom of turntable leading portion by bearing pin oil cylinder, and can realize by pivoting support the revolution of whole turntable.It is by the rotary motor being arranged on center of gyration body that the revolution of whole turntable drives, or by the tie-beam that is arranged on section rear portion, turntable left and right by bearing pin, or the combination of rotary motor and tie-beam provides.
Because turntable is in revolution when work, can inevitably there is unbalance stress, dislocation movement or overbalance, unsettled situation in left and right turntable, for avoiding or alleviate the generation of above-mentioned unfavorable phenomenon, generally should being further connected and fixed up and down at turntable rear portion, left and right, make turntable left and right section and turntable leading portion form an entirety, ensure the stable of whole turntable.As shown in Figure 1 to Figure 3, the connection mode at turntable rear portion, existing left and right adopts fixed type to connect conventionally, turntable rear portion, left and right be respectively welded with up and down connection bracket 1, connection bracket 1 be connected lacing wire 2 and complete being connected and fixed of left and right turntable by the fixed form of bolt and nut.
But there are several problems in this fixing type of attachment: be that connecting length cannot regulate on the one hand, due to the installation of turntable rear right section and turntable rear left section and turntable leading portion, it axially and radially has certain assemblage gap, therefore after each left and right turntable is reinstalled, the interval width of its left and right turntable is all vicissitudinous, it is immutable connecting the length of lacing wire, is difficult for installation and maybe cannot installs thereby cause.On the other hand, the form that is fixedly connected with is not mated with mode of operation, whole turntable is all to change at stressed, the interval width of revolution its left and right turntable when work etc. dynamically, in good time, the form that is fixedly connected with of bolt and nut cannot adapt to this actual working state, and owing to cannot adjusting unbalance stress that length causes and very easily cause the damage of bolt, there is very large safety and hidden danger of quality.
Summary of the invention
In view of the foregoing, the utility model provides a kind of turntable connection structure and has its crawler crane, and this turntable connection structure is easy for installation, can effectively improve again the safe reliability that turntable uses.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that a kind of turntable connection structure of crawler crane, for turntable rear left section and the turntable rear right section of connecting band track hoisting crane, it is characterized in that: turntable connection structure comprises and is respectively used to the head rod and the second pipe link that are connected with turntable rear right section with turntable rear left section, between head rod and the second pipe link, be connected by a length adjustment device, being at least threaded connection between one of them of length adjustment device and head rod and the second pipe link.
According to an embodiment of the present utility model, length adjustment device comprises the first screw rod and the second screw rod, the first screw rod and the second screw rod be threaded with head rod and the second pipe link respectively and the first screw rod contrary with the second screw flight rotation direction.
According to an embodiment of the present utility model, between the first screw rod and the second screw rod, be provided with adjusting swing arm, regulate swing arm to be provided with the portion that screws of being convenient to external tool the first screw rod and the second screw rod are screwed operation.
According to an embodiment of the present utility model, the cross-sectional plane that screws portion is that the polygon or the portion of screwing that include adjacent straight flange are provided with the jack of pulling handle for plugging.
According to an embodiment of the present utility model, regulate swing arm to be directly connected with the second screw rod with the first screw rod.
According to an embodiment of the present utility model, regulate between swing arm and the first screw rod and the second screw rod and be connected by the pressure spring being welded in therebetween.
According to an embodiment of the present utility model, one end of turntable rear left section and turntable rear right section is equipped with connection otic placode, head rod is provided with separately two with the corresponding turntable rear left of the second pipe link section with turntable rear right section and is connected otic placode, the connection otic placode of turntable rear left section and turntable rear right section is located in respectively between head rod and the connection otic placode of the second pipe link, and head rod is connected with turntable rear right section with turntable rear left section by being connected bearing pin respectively with the second pipe link.
According to an embodiment of the present utility model, head rod and the second pipe link two connect between otic placodes and are all welded with shrouding, and seal by the mode of welding between the connection otic placode of head rod and the second pipe link and corresponding tube wall.
According to an embodiment of the present utility model, on head rod and the second pipe link, be equipped with lifting otic placode.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that a kind of crawler crane, comprise turntable leading portion, turntable rear right section and turntable rear left section, one end of turntable rear right section and turntable rear left section is connected with turntable leading portion, and the other end of turntable rear right section and turntable rear left section is connected with above-mentioned turntable connection structure.
The beneficial effects of the utility model are: the utility model, by length adjustment device, makes the length between turntable rear right section and turntable rear left section adjustable, and the developed width that can install according to left and right turntable regulates, and make dismounting and install all very convenient.
The utility model, by adding pressure spring, can mate according in good time strained condition length adjustment device flexible in the time of revolution work, makes flexibility, stressed transitivity and good stability, can effectively improve the safe reliability that turntable uses.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification sheets, and for above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Brief description of the drawings
Fig. 1 is the schematic perspective view of existing turntable and connection structure thereof.
Fig. 2 is the structural representation of another angle of Fig. 1.
Fig. 3 is the schematic diagram of Fig. 1 intermediate station connection structure.
Fig. 4 is the schematic perspective view of an embodiment intermediate station of the present utility model and turntable connection structure.
Fig. 5 is the structural representation of another angle of Fig. 4.
Fig. 6 is the schematic perspective view of the utility model intermediate station connection structure.
Fig. 7 is the structural representation of head rod in Fig. 6.
Fig. 8 is the structural representation that the head rod in Fig. 7 is seen by left side.
Fig. 9 is the structural representation of length adjustment device in Fig. 6.
Figure 10 is turntable in another embodiment of the present utility model and the schematic perspective view of turntable connection structure.
Figure 11 is the schematic perspective view of Figure 10 intermediate station connection structure.
Figure 12 is that the master of Figure 10 intermediate station connection structure looks schematic diagram.
Detailed description of the invention:
Technological means and effect of taking for reaching predetermined object for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to turntable connection structure and the detailed description of the invention with its crawler crane, structure, feature and effect thereof according to the utility model proposes, be described in detail as follows.
As shown in Figure 4 and Figure 5, crawler crane of the present utility model comprises turntable leading portion 10, turntable rear right section 20, turntable rear left section 30 and turntable connection structure 40.Wherein, one end of turntable rear right section 20 and turntable rear left section 30 is connected with turntable leading portion 10, and the other end of turntable rear right section 20 and turntable rear left section 30 is connected with turntable connection structure 40.
Please further consult Fig. 6, turntable connection structure 40 of the present utility model comprises head rod 41, the second pipe link 42 and length adjustment device 43.Head rod 41 includes relative first end and the second end with the second pipe link 42, wherein, the first end of head rod 41 and the second pipe link 42 is connected with the otic placode 31,21 that is connected in turntable rear right section 20 with turntable rear left section 30 by being connected bearing pin respectively, and the second end of head rod 41 and the second pipe link 42 is connected with two opposite ends of length adjustment device 43 respectively.Length adjustment device 43 is arranged between head rod 41 and the second end of the second pipe link 42, and its length is adjustable, thereby make the distance between the first end of head rod 41 and the first end of the second pipe link 42 and turntable rear left section 30 and turntable rear right section 20 adjustable.
Further, as shown in Figure 7 and Figure 8, head rod 41 and the second pipe link 42 are tubular structure.The first end of head rod 41 and the second pipe link 42 is welded with respectively corresponding with connection otic placode 31,21 set in turntable rear left section 30 and turntable rear right section 20 two and is connected otic placode 411,421, these two connection otic placodes 411,421 are located in connection otic placode 31,21 therebetween, and are provided with separately the through hole 412,422 that connects bearing pin for wearing on these two connection otic placodes 411,421.Between these two connection otic placodes 411,421, be also provided with a shrouding 413, and these two gaps that connect between otic placode 411,421 and the tube wall of head rod 41 or the second pipe link 42 seal by the mode of welding, thereby can prevent that external dust or steam from entering in head rod 41 and the second pipe link 42.The second end of head rod 41 and the second pipe link 42 is provided with negative thread, and on head rod 41 and the second pipe link 42, the rotation direction of set negative thread is contrary, head rod 41 adopt left-handed, the corresponding employing dextrorotation of the second pipe link 42; Or head rod 41 adopts dextrorotation, the second pipe link 42 adopts left-handed.In addition, the top of head rod 41 and the second pipe link 42 is also provided with lifting otic placode 414,424, to facilitate the transhipment lifting of turntable structure.
As shown in Figure 9, length adjustment device 43 is a thru-bolt, and it comprises the first screw rod 431 of being positioned at both sides and the second screw rod 432, is positioned at the adjusting swing arm 433 at middle part and is connected the first screw rod 431 and the pressure spring 434 at the second screw rod 432 and adjusting swing arm 433 two ends.
On the first screw rod 431 and the second screw rod 432, be respectively equipped with the outside thread matching with the negative thread of head rod 41 and the second pipe link 42, i.e. the first screw rod 431 and the outside thread at the second screw rod 432 two ends, also the same with the second pipe link 42 with head rod 41, the rotation direction of its screw thread is contrary, with with being threaded of head rod 41 and the second pipe link 42, in the time regulating length, can make head rod 41 and the second pipe link 42 grow simultaneously or shorten like this.Preferably, screw thread on the first screw rod 431 and the second screw rod 432 is Acme thread, the screw thread of head rod 41 with matching and the second pipe link 42 is also Acme thread, so that connect closely, certainly, screw thread on the first screw rod 431, the second screw rod 432, head rod 41, the second pipe link 42 is not limited to as Acme thread, and it can be also other screw threads such as triangle thread.
It should be noted that, screw thread in thread connecting mode between head rod 41 and the second pipe link 42 and length adjustment device 43 on head rod 41 and the second pipe link 42 can be outside thread, the screw thread at the two ends of length adjustment device 43 can be negative thread, can make equally head rod 41 and the second pipe link 42 screw and coordinate with length adjustment device 43, reach above-mentioned effect.
The cross-sectional plane that regulates swing arm 433 is circular, and the middle part that regulates swing arm 433 is provided with one and screws portion 435, screw portion 435 and be provided with jack 436, in this jack 436, can insert external tools such as pulling handle, pull the portion of screwing 435 by operation external tool and tighten or unclamp and be threaded.Understandable, in other embodiment of the present utility model, jack 436 also can be set in the portion of screwing 435, but by being arranged to triangle, quadrangle, pentagon, hexagon etc., the cross-sectional plane of the portion of screwing 435 at least there is the polygon of two adjacent straight flanges, utilize the external tool such as open-end spanner, adjustable angle spanner to screw operation to the portion of screwing 435 to facilitate, in a further embodiment, screw portion 435 and also can adopt the combination of above-mentioned two kinds of modes, as long as its setting is convenient to external tool the portion of screwing 435 is screwed to operation.
Pressure spring 434 is welded in respectively between the two ends and the first screw rod 431 and the second screw rod 432 that regulate swing arm 433, by the elasticity of pressure spring 434, make turntable in the time of revolution work, can mate and stretch according in good time strained condition, flexible, stressed transitivity and stability be all relatively good.
Certainly, if turntable rear right section 20 and turntable rear left section 30 are very high with the setting accuracy of turntable leading portion 10, be in the situation that assemblage gap is very little, about when work, the change width of turntable and the fluctuation of stressing conditions are not just very large, length adjustment device 43 can arrange pressure spring 434 in this case, the second embodiment as shown in Figure 10 to Figure 12, in Figure 10 to Figure 12, the length adjustment device 53 of turntable connection structure 50 only comprises adjusting swing arm 533 and the first screw rod 531 being directly connected with the both sides of adjusting screw(rod) and the second screw rod 532, in this case, regulate swing arm 533 and the first screw rod 531, the second screw rod 532 can be made up of a body, also can after interting and welding, be formed by three bodys.
In sum, the beneficial effects of the utility model are: the utility model passes through length adjustment device, make the length between turntable rear right section and turntable rear left section adjustable, and the developed width that can install according to left and right turntable regulates, make the dismounting of turntable connection structure and install all very convenient.
The utility model, by adding pressure spring, can mate according in good time strained condition length adjustment device flexible in the time of revolution work, makes flexibility, stressed transitivity and good stability, can effectively improve the safe reliability that turntable uses.
The above, it is only the detailed description that realizes the utility model specific embodiment of the utility model specification sheets description and graphic, for illustration and unrestricted, but feature of the present utility model is not limited to this, those skilled in the art obviously understand, all scopes of the present utility model should be as the criterion with the protection domain of its claim, do not deviating under the prerequisite of invention spirit that appended claims defines and invention scope, all other embodiment that variation similar with it implemented according to spirit of the present utility model, all should be included among protection category of the present utility model.
Claims (10)
1. the turntable connection structure (40) of a crawler crane, for the turntable rear left section (30) and turntable rear right section (20) of connecting band track hoisting crane, it is characterized in that: described turntable connection structure (40) comprises and is respectively used to the head rod (41) and the second pipe link (42) that are connected with turntable rear right section (20) with turntable rear left section (30), between described head rod (41) and the second pipe link (42), be connected by a length adjustment device (43), at least being threaded connection between one of them of described length adjustment device (43) and described head rod (41) and the second pipe link (42).
2. the turntable connection structure (40) of crawler crane according to claim 1, it is characterized in that: described length adjustment device (43) comprises the first screw rod (431) and the second screw rod (432), described the first screw rod (431) and the second screw rod (432) be threaded with head rod (41) and the second pipe link (42) respectively and the thread rotary orientation of described the first screw rod (431) and the second screw rod (432) contrary.
3. the turntable connection structure (40) of crawler crane according to claim 2, it is characterized in that: between described the first screw rod (431) and the second screw rod (432), be provided with and regulate swing arm (433), regulate swing arm (433) to be provided with the portion that screws (435) of being convenient to external tool the first screw rod (431) and the second screw rod (432) are screwed operation.
4. the turntable connection structure (40) of crawler crane according to claim 3, is characterized in that: described in screw portion (435) cross-sectional plane be include adjacent straight flange polygon or described in screw portion (435) and be provided with the jack (436) of pulling handle for plugging.
5. the turntable connection structure (40) of crawler crane according to claim 3, is characterized in that: described adjusting swing arm (433) is directly connected with the second screw rod (432) with described the first screw rod (431).
6. the turntable connection structure (40) of crawler crane according to claim 3, is characterized in that: between described adjusting swing arm (433) and described the first screw rod (431) and the second screw rod (432), be connected by the pressure spring (434) being welded in therebetween.
7. the turntable connection structure (40) of crawler crane according to claim 1, it is characterized in that: described turntable rear left section (30) is equipped with and is connected otic placode (31 with one end of turntable rear right section (20), 21), described head rod (41) is provided with separately two with the second pipe link (42) corresponding turntable rear left section (30) with turntable rear right section (20) and is connected otic placode (411, 421), the connection otic placode (31 of described turntable rear left section (30) and turntable rear right section (20), 21) be located in respectively the connection otic placode (411 of described head rod (41) and the second pipe link (42), 421) between, described head rod (41) is connected with turntable rear right section (20) with turntable rear left section (30) by being connected bearing pin respectively with the second pipe link (42).
8. the turntable connection structure (40) of crawler crane according to claim 7, it is characterized in that: described head rod (41) and described the second pipe link (42) two connect between otic placodes (411,421) and are all welded with shrouding (413), and seal by the mode of welding between the connection otic placode (411,421) of described head rod (41) and described the second pipe link (42) and corresponding tube wall.
9. the turntable connection structure (40) of crawler crane according to claim 1, is characterized in that: on described head rod (41) and the second pipe link (42), be equipped with lifting otic placode (414,424).
10. a crawler crane, comprise turntable leading portion (10), turntable rear right section (20) and turntable rear left section (30), one end of described turntable rear right section (20) and turntable rear left section (30) is connected with described turntable leading portion (10), the other end of described turntable rear right section (20) and turntable rear left section (30) is connected with a turntable connection structure (40), it is characterized in that: described turntable connection structure (40) is the turntable connection structure (40) described in any one in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157804.8U CN203754310U (en) | 2014-04-02 | 2014-04-02 | Turntable connecting structure and crawler crane with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157804.8U CN203754310U (en) | 2014-04-02 | 2014-04-02 | Turntable connecting structure and crawler crane with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203754310U true CN203754310U (en) | 2014-08-06 |
Family
ID=51249609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420157804.8U Expired - Lifetime CN203754310U (en) | 2014-04-02 | 2014-04-02 | Turntable connecting structure and crawler crane with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203754310U (en) |
-
2014
- 2014-04-02 CN CN201420157804.8U patent/CN203754310U/en not_active Expired - Lifetime
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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: 20140806 |