CN219341544U - Structure of ear plate attached with rod and capable of effectively reducing bending moment borne by pin shaft - Google Patents
Structure of ear plate attached with rod and capable of effectively reducing bending moment borne by pin shaft Download PDFInfo
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- CN219341544U CN219341544U CN202320158236.2U CN202320158236U CN219341544U CN 219341544 U CN219341544 U CN 219341544U CN 202320158236 U CN202320158236 U CN 202320158236U CN 219341544 U CN219341544 U CN 219341544U
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- pull rod
- pin shaft
- ear plate
- bending moment
- frame
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Abstract
The utility model provides an attaching rod lug plate structure capable of effectively reducing bending moment borne by a pin shaft, and relates to the technical field of building construction. According to the utility model, the pull rod lug plates are arranged into the two groups of the pull rod upper lug plates and the pull rod lower lug plates, so that the problem that the bending moment borne by the pin shaft is large can be well relieved, the liner tube is fixedly arranged between the pull rod upper lug plates and the pull rod lower lug plates in a soldering manner, the pull rod upper lug plates and the pull rod lower lug plates can be subjected to stress support through the liner tube, the pin shaft is regarded as a simply supported beam for stress analysis, and further, the phenomenon that the stress of the lower lug plates of the attachment frame is far greater than that of the upper lug plates of the attachment frame due to the fact that b is far greater than a can be avoided to a certain extent, the phenomenon that the stress is unbalanced and is easy to damage can be caused can be avoided, and further, the bending moment borne by the pin shaft at the joint is reduced, and the risk of damage of the pin shaft can be effectively reduced.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to an attaching rod lug plate structure capable of effectively reducing bending moment borne by a pin shaft.
Background
The tower crane is widely applied to building construction projects such as industrial plants, power stations, bridges, civil buildings and the like. Construction raw materials such as steel bars, concrete, steel pipes and the like used in the building construction process are generally transported in a tower crane hoisting mode. The tower crane attaching device reduces the calculated height of the tower body by transmitting the force and the bending moment acting on the tower crane to the building, and ensures the safe operation of the tower crane under the condition that the tower crane is higher than the independent height. The attachment device is usually a nonstandard part, and special design is required according to the field working condition and the working condition, and the reliability of the attachment device has an important influence on the safe operation of the tower crane.
However, in the prior art, at present, part of tower crane manufacturers and leasing companies directly weld two lug plates on the attaching frame, so that the lug plate distance is determined by the specification of the attaching frame. Because the hinge pin at the joint of the attachment rod and the attachment frame is generally longer, the hinge pin is regarded as a simply supported beam for stress analysis, and then b is far greater than a easily, so that the stress of the lower lug plate of the attachment frame is far greater than that of the upper lug plate of the attachment frame, the bending moment born by the bearing is larger, the risk of damage of the hinge pin is further improved, the hinge pin can be broken, and a certain potential safety hazard is increased. Therefore, the structure of the attaching rod lug plate can effectively reduce the bending moment borne by the pin shaft.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and because the pin shaft at the joint of the attachment rod and the attachment frame is generally longer, the bearing bending moment is larger, the risk of damage to the pin shaft is further increased, the pin shaft can be broken, and a certain potential safety hazard is increased.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an attach pole otic placode structure that can effectively reduce round pin axle and bear moment of flexure, includes attach frame one, attach frame one's top fixed mounting has attach frame upper lug, attach frame one's bottom fixed mounting has attach frame lower lug, attach frame upper lug and attach frame lower lug's inside is provided with the round pin axle, the surface rotation of round pin axle installs the pull rod upper lug, one side of pull rod upper lug is provided with the pull rod lower lug, fixed mounting has attach pole between the one end of pull rod upper lug and pull rod lower lug, attach frame two is fixed mounting to the opposite side of pole, be provided with the bushing pipe between pull rod upper lug and the pull rod lower lug, the inside of round pin axle is provided with the cotter pin.
As a preferable implementation mode, two ends of the lining pipe are correspondingly and fixedly connected with one side of the upper lug plate or the lower lug plate of the pull rod in a soldering mode.
As a preferred embodiment, the liner tube is internally provided with through holes corresponding to the pin shafts, and the liner tube is rotatably connected with the pin shafts.
As a preferred embodiment, the upper ear plate and the lower ear plate of the attachment frame are correspondingly and fixedly connected with the two sides of the first attachment frame through soldering.
As a preferred implementation mode, through holes corresponding to the cotter pins are formed in the pin shafts, and the pin shafts are fixedly connected with the cotter pins through the through holes.
As a preferable implementation mode, through holes corresponding to the pin shafts are formed in the upper lug plate of the attachment frame and the lower lug plate of the attachment frame, and the upper lug plate of the attachment frame and the lower lug plate of the attachment frame are rotatably connected with the pin shafts through the through holes.
Compared with the prior art, the utility model has the advantages and positive effects that:
according to the utility model, the pull rod lug plates are arranged into the two groups of the pull rod upper lug plates and the pull rod lower lug plates, so that the problem that the bending moment borne by the pin shaft is large can be well relieved, the liner tube is fixedly arranged between the pull rod upper lug plates and the pull rod lower lug plates in a soldering manner, the pull rod upper lug plates and the pull rod lower lug plates can be subjected to stress support through the liner tube, the pin shaft is regarded as a simply supported beam for stress analysis, and further, the phenomenon that the stress of the lower lug plates of the attachment frame is far greater than that of the upper lug plates of the attachment frame due to the fact that b is far greater than a can be avoided to a certain extent, the phenomenon that the stress is unbalanced and is easy to damage can be caused can be avoided, and further, the bending moment borne by the pin shaft at the joint is reduced, and the risk of damage of the pin shaft can be effectively reduced.
Drawings
FIG. 1 is a side view of an attachment post ear plate structure that is provided by the present utility model that is effective in reducing bending moment experienced by a pin;
FIG. 2 is a schematic structural view of a liner tube with a rod ear plate structure, which can effectively reduce bending moment borne by a pin shaft;
fig. 3 is a cross-sectional view of an attachment rod ear plate structure provided by the utility model, which can effectively reduce bending moment borne by a pin shaft.
Legend description:
1. attaching a first frame; 2. attaching an upper ear plate of the frame; 3. attaching a lower ear plate of the frame; 4. a pin shaft; 5. the pull rod is provided with an ear plate; 6. a lower lug plate of the pull rod; 7. an attachment rod; 8. attaching a second frame; 9. a cotter pin; 10. a liner tube.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
As shown in fig. 1-3, the present utility model provides a technical solution: the utility model provides an attached rod otic placode that can effectively reduce round pin axle and bear moment of flexure, including attached frame 1, attached frame 1's top fixed mounting has attached frame up otic placode 2, attached frame 1's bottom fixed mounting has attached frame down otic placode 3, attached frame up otic placode 2 and attached frame down otic placode 3 correspond with attached frame 1's both sides fixed connection through soldering mode, attached frame up otic placode 2 and attached frame down otic placode 3's inside is provided with round pin axle 4, attached frame up otic placode 2 and attached frame down otic placode 3's inside all has seted up the through-hole corresponding with round pin axle 4, attached frame up otic placode 2 and attached frame down otic placode 3 all rotate with round pin axle 4 through-hole and are connected, the surface rotation of round pin axle 4 installs pull rod up otic placode 5, one side of pull rod up otic placode 5 is provided with pull rod down otic placode 6, fixed mounting rod 7 between one end of pull rod up otic placode 5 and pull rod down otic placode 6 has, attached rod 7's opposite side fixed mounting frame up otic placode 2 and attached frame down the inside of otic placode 3 is provided with round pin axle 4, attached frame down the through-pin axle 10's corresponding with round pin axle 4 through-hole 9, open pin 9 is provided with through-hole 10 between the corresponding through-hole 10 of round pin 4 to the inside of the corresponding to the inside of attaching frame down otic placode 3, the lining tube is provided with the inside is connected with the inside through-hole 9.
In this embodiment, the pull rod ear plates are set to be two groups of the pull rod upper ear plate 5 and the pull rod lower ear plate 6, so that the pull rod lower ear plate 6 is prevented from falling on the attachment frame lower ear plate 3 due to the action of gravity, the borne gravity of the attachment frame lower ear plate 3 is reduced to a moving degree, the problem that the bending moment borne by the pin shaft 4 is large can be well relieved, the liner tube 10 is fixedly arranged between the pull rod upper ear plate 5 and the pull rod lower ear plate 6 in a soldering manner, the pull rod upper ear plate 5 and the pull rod lower ear plate 6 can be subjected to stress support by the liner tube 10, the pin shaft 4 is regarded as a simple supporting beam for stress analysis, the phenomenon that the stress of the attachment frame lower ear plate 3 is far greater than that of the attachment frame upper ear plate 2 is avoided to a certain extent, the stress imbalance is easy to occur, the bending moment borne by the pin shaft 4 at the joint is reduced, the risk that the pin shaft 4 is damaged can be effectively reduced, and the structural bending moment 4 is obtained at the attachment frame upper ear plate 2 and the attachment frame lower ear plate 3 respectively by stress analysis in the setting
And->
. By mathematical means, M can be demonstrated 1 And M 2 All are smaller than Nl/4, so that the bearing bending moment of the pin shaft 4 is relatively reduced, and the specific proving process is not repeated.
Working principle:
as shown in fig. 1-3, the attachment ear plate device is specially designed according to the working condition and the working condition, the whole device is fixed on the tower crane connecting piece when in use, the tower crane attachment device reduces the calculated height of the tower body by transmitting the force and bending moment acting on the tower crane to the building, and the safe operation of the tower crane under the condition that the tower crane is higher than the independent height is ensured. The pull rod otic placodes are arranged into two groups of pull rod upper otic placodes 5 and pull rod lower otic placodes 6, and then the pull rod lower otic placodes 6 fall on the attached frame lower otic placodes 3 due to the action of gravity, and then the borne gravity of the attached frame lower otic placodes 3 is reduced to the moving degree, and then the problem that the pin roll 4 bears a large bending moment can be well relieved, and the liner tube 10 is fixedly arranged between the pull rod upper otic placodes 5 and the pull rod lower otic placodes 6 in a soldering manner, the pull rod upper otic placodes 5 and the pull rod lower otic placodes 6 can be stressed and supported by arranging the liner tube 10, the pin roll 4 is regarded as a simple supporting beam to carry out stress analysis, and then the phenomenon that the stress imbalance is easy to break due to the fact that b is far greater than a, the stress of the attached frame lower otic placodes 3 is far greater than that of the attached frame upper otic placodes 2 can be avoided to a certain extent, and then the bending moment effect born by the pin roll 4 at the joint can be reduced, the damage to the pin roll 4 can be effectively reduced, and the structural bending moment obtained by the stress analysis in the arrangement can be carried out to the structure bending moment analysis, the bending moment is the pin roll 4 at the positions of the attached frame upper otic placodes 2 and the attachment frame lower otic placodes 3 respectively
And->
. By mathematical means, M can be demonstrated 1 And M 2 Are smaller than Nl/4, so that the bearing bending moment of the pin shaft 4 is relatively reduced, and the concrete evidence proves thatThe process is not described in detail.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model will still fall within the protection scope of the technical solution of the present utility model.
Claims (6)
1. The utility model provides an adhesion pole otic placode structure that can effectively reduce round pin axle and bear moment of flexure, includes adhesion frame one (1), its characterized in that: the utility model discloses a pull rod type floor tile, including the bottom fixed mounting of adhesion frame one (1), the top fixed mounting of adhesion frame one (1) has adhesion frame upper ear board (2), adhesion frame upper ear board (2) and adhesion frame lower ear board (3) inside be provided with round pin axle (4), the surface rotation of round pin axle (4) installs on the pull rod otic placode (5), one side of on the pull rod otic placode (5) is provided with under the pull rod otic placode (6), fixed mounting has adhesion pole (7) between the one end of otic placode (6) under the pull rod on the pull rod, the opposite side fixed mounting of adhesion pole (7) has adhesion frame two (8), be provided with bushing pipe (10) between on the pull rod otic placode (5) and the pull rod otic placode (6), the inside of round pin axle (4) is provided with cotter pin (9).
2. The attachment pole ear plate structure capable of effectively reducing bending moment borne by a pin shaft according to claim 1, wherein the attachment pole ear plate structure is characterized in that: two ends of the liner tube (10) are correspondingly fixedly connected with one side of the pull rod upper lug plate (5) or one side of the pull rod lower lug plate (6) in a soldering mode.
3. The attachment pole ear plate structure capable of effectively reducing bending moment borne by a pin shaft according to claim 1, wherein the attachment pole ear plate structure is characterized in that: the inside of bushing pipe (10) is provided with the through-hole corresponding with round pin axle (4), bushing pipe (10) are connected with round pin axle (4) rotation.
4. The attachment pole ear plate structure capable of effectively reducing bending moment borne by a pin shaft according to claim 1, wherein the attachment pole ear plate structure is characterized in that: the upper lug plate (2) and the lower lug plate (3) of the attaching frame are correspondingly and fixedly connected with the two sides of the first attaching frame (1) in a soldering manner.
5. The attachment pole ear plate structure capable of effectively reducing bending moment borne by a pin shaft according to claim 1, wherein the attachment pole ear plate structure is characterized in that: the pin shaft (4) is fixedly connected with the cotter pin (9) through a through hole.
6. The attachment pole ear plate structure capable of effectively reducing bending moment borne by a pin shaft according to claim 1, wherein the attachment pole ear plate structure is characterized in that: through holes corresponding to the pin shafts (4) are formed in the upper and lower attaching frame lug plates (2, 3) respectively, and the upper and lower attaching frame lug plates (2, 3) are rotatably connected with the pin shafts (4) through the through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320158236.2U CN219341544U (en) | 2023-02-08 | 2023-02-08 | Structure of ear plate attached with rod and capable of effectively reducing bending moment borne by pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320158236.2U CN219341544U (en) | 2023-02-08 | 2023-02-08 | Structure of ear plate attached with rod and capable of effectively reducing bending moment borne by pin shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219341544U true CN219341544U (en) | 2023-07-14 |
Family
ID=87105085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320158236.2U Active CN219341544U (en) | 2023-02-08 | 2023-02-08 | Structure of ear plate attached with rod and capable of effectively reducing bending moment borne by pin shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219341544U (en) |
-
2023
- 2023-02-08 CN CN202320158236.2U patent/CN219341544U/en active Active
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