CN217264490U - Pulley seat, pulley assembly and tower crane - Google Patents
Pulley seat, pulley assembly and tower crane Download PDFInfo
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- CN217264490U CN217264490U CN202220076127.1U CN202220076127U CN217264490U CN 217264490 U CN217264490 U CN 217264490U CN 202220076127 U CN202220076127 U CN 202220076127U CN 217264490 U CN217264490 U CN 217264490U
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Abstract
The utility model discloses a pulley holder, loose pulley assembly, tower machine belongs to hoisting equipment technical field. Wherein, the pulley holder is including the first installation otic placode and the second installation otic placode that set up side by side, first installation otic placode with be equipped with the chamber that holds that is used for at least part to hold the pulley body between the second installation otic placode, be equipped with the installation spout on the inside wall of first installation otic placode, the installation spout includes open end and butt end, the open end extends to hold the opening in chamber, the butt end is used for butt pulley pin axle. The pulley body can be earlier after forming the subassembly with the pulley pin axle, and the tip of installing the round pin axle slides the butt end through the open end of installing the spout when the installation, slides the tip of installing the round pin axle to the open end from the butt end of installing the spout when dismantling, makes the whole dismouting of being convenient for of pulley body and installing the round pin axle, has improved the dismouting efficiency of pulley pin axle, pulley body.
Description
Technical Field
The utility model relates to a hoisting equipment technical field, in particular to pulley holder, loose pulley assembly, tower machine.
Background
After the tower crane is assembled in place and penetrates through and winds the steel wire rope, the operation angle and the position height of the steel wire rope are changed through the pulley in the working process due to the hoisting and amplitude changing of the steel wire rope, the pulley is prone to damage due to stress change in the working process, and timely and efficient maintenance is needed. The biggest difficult problem in the installation and maintenance of the direction-changing pulley assembly is the assembly and disassembly of the pulley pin shaft, the pin shaft is disassembled in the first step of maintaining any part of the direction-changing pulley assembly, and other parts cannot be maintained without disassembling the pin shaft.
The method is analyzed according to the design of the existing flat-top tower crane, and the welding positions of structures such as a pulley plate and the like of a hoisting steel wire rope turning pulley seat are arranged beside the turning pulley seat for mounting the turning pulley block. Because of compact structure, both adopt and excavate the round pin shaft hole on the installation otic placode of diversion pulley holder, the round pin axle hole cooperation corresponding size round pin axle, and the round pin axle adopts to strike the entering mounting means when the installation. If the problem because of design processing degree of adaptability or because of the problem of rainwater corrosion in the use will cause the round pin axle to block, the trouble that the round pin axle can't be dismantled out smoothly. The direct consequence is that timely and efficient maintenance can not be achieved when needed, the maintenance downtime of equipment is long due to the fact that the work is inconvenient, the overall work progress is affected, and unnecessary loss is caused.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a pulley seat aims at improving the dismouting efficiency of pulley round pin axle.
In order to achieve the above object, the utility model provides a pulley holder, including first installation otic placode and the second installation otic placode that sets up side by side, first installation otic placode with be equipped with the chamber that holds that is used for at least part to hold the pulley body between the second installation otic placode, be equipped with the installation spout on the inside wall of first installation otic placode, the installation spout includes open end and butt end, the open end extends to hold the opening in chamber, the butt end is used for butt pulley pin axle.
Optionally, the pulley seat further includes a connecting plate, at least part of the connecting plate blocks one side of the accommodating cavity deviating from the opening, and two ends of the connecting plate are respectively fixedly connected with the first mounting lug plate and the second mounting lug plate. After the two ends of the connecting plate are respectively fixedly connected with the first mounting lug plate and the second mounting lug plate, an integral frame of the pulley seat is formed, and the mounting and manufacturing efficiency of the pulley seat is higher.
Optionally, the distance from the mounting chute to the side edge of the first mounting lug plate is gradually increased along the direction from the connecting plate to the opening, so that after the pulley seat is positioned and mounted through the side edge of the first mounting lug plate, the mounting chute is positioned except for the opening end, and an entity part of the first mounting lug plate is arranged right above the mounting chute, so that the bounce of the pulley pin shaft right above the pulley pin shaft can be reduced, and the stability of the pulley pin shaft in operation is improved.
Optionally, a preset offset angle is arranged between the extending direction of the mounting sliding groove and the thickness direction of the connecting plate, and the preset offset angle is greater than 10 degrees and smaller than 50 degrees. The preset deflection angle is larger than 10 degrees and smaller than 50 degrees, so that the mounting chute forms a linear structure, and the processing convenience of the mounting chute is improved; in addition, the preset deflection angle is larger than 10 degrees and smaller than 50 degrees, the jump of the pulley pin shaft towards the right upper side can be further reduced, and the stability of the pulley pin shaft in operation is further improved.
Optionally, the pulley holder still includes the cardboard, the cardboard with first installation otic placode can be dismantled and is connected, the cardboard is used for the butt pulley round pin axle deviates from one side of butt end. The cardboard can fix pulley pin axle to through the mode of can dismantling the connection with first installation otic placode, further improved pulley pin axle's dismouting efficiency. The pulley holder includes the cardboard, makes the pulley holder can reduce the reliance to the external part who is used for fixed pulley round pin axle, makes the pulley holder can fix pulley round pin axle more independently.
Optionally, the distance of the card to the open end is greater than the distance of the card to the abutting end. The cardboard is greater than the cardboard to the distance of open end the butt end has improved the structural strength of first installation otic placode in near region of pulley pin axle fixed department, reduces the damage that the vibration of pulley pin axle caused first installation otic placode, has improved the life of pulley holder.
Optionally, a ratio of a distance of the card to the open end to a distance of the card to the abutting end is greater than 1.5 and less than 3. Cardboard to the distance of open end and cardboard to the distance ratio of butt end is greater than 1.5 and is less than 3, avoids causing cardboard connection structure form to the local deformation or the weakening of structural strength that first installation otic placode brought apart from the butt end too closely promptly, further reduces the damage that the vibration of pulley pin axle led to the fact first installation otic placode again, has further improved the life of pulley holder.
Optionally, the mounting sliding groove penetrates through the first mounting lug plate in the thickness direction; and/or the second mounting lug plate is provided with the mounting chute; and/or, the first mounting lug plate is provided with a first connecting hole and a second connecting hole, the first connecting hole and the second connecting hole are respectively arranged at two sides of the mounting sliding groove, and the first connecting hole and the second connecting hole are respectively used for being connected with two ends of the clamping plate. The installation spout runs through the setting along first installation otic placode thickness direction, makes the tip of pulley round pin axle more easily seen, has improved the visuality of dismouting, has improved dismouting efficiency. The second mounting lug plate is provided with the mounting sliding groove, so that both ends of the pulley pin shaft are convenient to disassemble and assemble, and the disassembling and assembling efficiency of the pulley pin shaft is further improved. First installation otic placode is equipped with first connecting hole and second connecting hole, first connecting hole with the second connecting hole sets up respectively in the both sides of installation spout, first connecting hole and second connecting hole be used for respectively with the both ends of cardboard are connected, have realized promptly that the cardboard is fixed to the chucking of pulley pin axle, have improved the installation convenience of cardboard again.
The utility model also provides a loose pulley assembly, including pulley body and pulley pin axle, still include above-mentioned pulley seat.
The utility model also provides a tower machine, including above-mentioned loose pulley assembly.
The technical scheme of the utility model is that the pulley seat is arranged to comprise a first mounting ear plate and a second mounting ear plate which are arranged side by side, a containing cavity for at least partially containing the pulley body is arranged between the first mounting ear plate and the second mounting ear plate, a mounting chute is arranged on the inner side wall of the first mounting ear plate, the mounting chute comprises an opening end and a butt end, the opening end extends to the opening of the containing cavity, and the butt end is used for butting the pulley pin shaft; the pulley body can be earlier after forming the subassembly with the pulley pin axle, and the tip of installing the round pin axle slides the butt end through the open end of installing the spout when the installation, slides the tip of installing the round pin axle to the open end from the butt end of installing the spout when dismantling, makes the whole dismouting of being convenient for of pulley body and installing the round pin axle, has improved the dismouting efficiency of pulley pin axle, pulley body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a front view of an embodiment of the pulley seat of the present invention.
Fig. 2 is a cross-sectional view taken at a-a in fig. 1.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a pulley seat.
Referring to fig. 1 and 2, in an embodiment of the present invention, the pulley seat includes a first mounting lug plate 1 and a second mounting lug plate 2 disposed side by side, a containing cavity 3 for at least partially containing the pulley body is disposed between the first mounting lug plate 1 and the second mounting lug plate 2, an installation chute 4 is disposed on an inner side wall of the first mounting lug plate 1, and the installation chute 4 includes a form that runs through the arrangement along a thickness direction of the first mounting lug plate 1 and is disposed as a blind groove along the thickness direction of the first mounting lug plate 1. The mounting runner 4 comprises an open end 41 and an abutment end 42, the open end 41 extending to the opening of the accommodating cavity 3, the open end 41 enabling the pulley pin to enter the mounting runner 4, the abutment end 42 being for abutment against the pulley pin.
The pulley seat is arranged to comprise a first mounting lug plate 1 and a second mounting lug plate 2 which are arranged side by side, an accommodating cavity 3 for at least partially accommodating a pulley body is arranged between the first mounting lug plate 1 and the second mounting lug plate 2, an installation chute 4 is arranged on the inner side wall of the first mounting lug plate 1, the installation chute 4 comprises an opening end 41 and a butt end 42, the opening end 41 extends to an opening of the accommodating cavity 3, and the butt end 42 is used for butting against a pulley pin shaft; the pulley body can be preceding after forming the subassembly with the pulley pin axle, and the tip of installing the round pin axle slides to butt end 42 through the open end 41 of installation spout 4 when the installation, slides the tip of installing the round pin axle to open end 41 from the butt end 42 of installation spout 4 when dismantling, makes the whole dismouting of being convenient for of pulley body and installing the round pin axle, has improved the dismouting efficiency of pulley pin axle, pulley body. At this time, the pulley body and the pulley pin shaft are integrally formed by being mounted in advance, and can be fixed in position at the abutting end 42 by means of self-gravity, external structure fixation, and the like.
As an optional implementation manner, the pulley seat further includes a connecting plate 5, at least part of the plugging accommodating cavity 3 of the connecting plate 5 is away from one side of the opening, and two ends of the connecting plate 5 are respectively and fixedly connected with the first mounting lug plate 1 and the second mounting lug plate 2, specifically, the fixing connection can be performed through welding, clamping, bolting, screwing and the like, so that the first mounting lug plate 1, the second mounting lug plate 2 and the connecting plate 5 are integrally in an open slot shape. After the two ends of the connecting plate 5 are respectively and fixedly connected with the first mounting lug plate 1 and the second mounting lug plate 2, an integral framework of the pulley seat is formed, so that the mounting and manufacturing efficiency of the pulley seat is higher.
As an optional implementation manner, the distance from the mounting chute 4 to the side edge of the first mounting lug plate 1 gradually increases along the direction from the connecting plate 5 to the opening, that is, the mounting chute 4 may be set to be an inclined straight line shape or an inclined arc shape, so that after the pulley seat is positioned and mounted through the side edge of the first mounting lug plate 1, the mounting chute 4 is located at a position except the opening end 41, and a solid part of the first mounting lug plate 1 is located right above the pulley seat, so that the bounce of the pulley pin shaft towards the right above can be reduced, and the stability of the pulley pin shaft during operation is improved.
As an alternative embodiment, a preset offset angle is provided between the extending direction of the mounting chute 4 and the thickness direction of the connecting plate 5, and the preset offset angle is shown as an angle M in fig. 1. The predetermined offset angle is greater than 10 degrees and less than 50 degrees. The preset deflection angle is larger than 10 degrees and smaller than 50 degrees, so that the mounting chute 4 forms a linear structure, and the processing convenience of the mounting chute 4 is improved; in addition, the preset deflection angle is larger than 10 degrees and smaller than 50 degrees, the jump of the pulley pin shaft towards the right upper side can be further reduced, and the stability of the pulley pin shaft in operation is further improved. As a further alternative, the predetermined offset angle is greater than 15 degrees and less than 35 degrees to further reduce the bounce of the pulley pin directly upward.
As an optional implementation manner, the pulley seat further includes a clamping plate, the clamping plate is detachably connected to the first mounting lug plate 1, and the clamping plate is used for abutting against one side of the pulley pin shaft, which is away from the abutting end 42. The cardboard can fix pulley pin axle to through the mode of can dismantling the connection with first installation otic placode 1, further improved pulley pin axle's dismouting efficiency. The pulley holder includes the cardboard, makes the pulley holder can reduce the reliance to the external component who is used for fixed pulley round pin axle, makes the pulley holder can fix pulley round pin axle more independently. The cardboard also can limit a pulley pin axle, avoids pulley pin axle to follow the unexpected withdraw of installation spout.
As an alternative embodiment, the mounting chute 4 is arranged to penetrate along the thickness direction of the first mounting lug plate 1; the second mounting lug plate 2 is also provided with a mounting chute 4; first installation otic placode 1 is equipped with first connecting hole 11 and second connecting hole 12, and first connecting hole 11 and second connecting hole 12 set up respectively in the both sides of installation spout 4, and first connecting hole 11 and second connecting hole 12 are used for being connected with the both ends of cardboard respectively. In the embodiment, the first connecting hole 11 and the second connecting hole 12 are both provided with threaded holes, so that the clamping plate can be fixed by fasteners such as bolts and screws; in an alternative embodiment, the first and second connection holes 11, 12 may be provided as light holes, in which case the card board can be fixed by riveting, interference fit, etc. First installation otic placode 1 is equipped with first connecting hole 11 and second connecting hole 12, and first connecting hole 11 and second connecting hole 12 set up respectively in the both sides of installation spout 4, and first connecting hole 11 and second connecting hole 12 are used for being connected with the both ends of cardboard respectively, have realized promptly that the cardboard is fixed to the chucking of pulley pin axle, have improved the installation convenience of cardboard again.
The installation chute 4 penetrates through the first installation ear plate 1 in the thickness direction, so that the end part of the pulley pin shaft can be seen more easily, the visibility of the dismounting is improved, and the dismounting efficiency is improved. The second mounting lug plate 2 is provided with the mounting sliding grooves 4, so that both ends of the pulley pin shaft are convenient to disassemble and assemble, and the disassembling and assembling efficiency of the pulley pin shaft is further improved.
As an alternative, the distance from the card to the open end 41 (as shown at L2 in fig. 1) is greater than the distance from the card to the abutting end 42 (as shown at L1 in fig. 1), which may be measured with respect to the centerline of the card. The centers of the first and second connection holes 11 and 12 to which the card is fixedly attached may be used as a reference as shown in fig. 1. The distance from the clamping plate to the opening end 41 is greater than the distance from the clamping plate to the abutting end 42, the structural strength of the first mounting lug plate 1 in the vicinity of the fixed position of the pulley pin shaft is improved, the damage to the first mounting lug plate 1 caused by the vibration of the pulley pin shaft is reduced, and the service life of the pulley seat is prolonged.
As an alternative embodiment, the ratio of the distance of the card to the open end 41 to the distance of the card to the abutment end 42 is greater than 1.5 and less than 3. The cardboard is greater than 1.5 and is less than 3 to the distance of open end 41 and cardboard to the distance of butt end 42, avoids being too near apart from butt end 42 promptly and causes cardboard connection structure form to the local deformation or the weakening of structural strength that first installation otic placode 1 brought, further reduces the damage that the vibrations of pulley pin axle led to the fact first installation otic placode 1 again, has further improved the life of pulley holder. Further as preferred embodiment, the ratio of the distance from the cardboard to the open end 41 to the distance from the cardboard to the abutting end 42 is greater than 1.8 and less than 2.5 to further avoid causing the cardboard connection structure form to weaken the local deformation or structural strength brought to the first mounting lug plate 1 by being too close to the abutting end 42, further reduce the damage to the first mounting lug plate 1 caused by the vibration of the pulley pin shaft, and further improve the service life of the pulley seat. When the distance from the mounting chute 4 to the side edge of the first mounting lug plate 1 gradually increases along the direction from the connecting plate 5 to the opening, the distance from the clamping plate to the opening end 41 (as shown by L2 in fig. 1) is larger than the distance from the clamping plate to the abutting end 42 (as shown by L1 in fig. 1), the jump of the pulley pin shaft towards the right top is reduced through the solid part of the first mounting lug plate 1 right above, the stability of the pulley pin shaft in operation is improved, meanwhile, the integral strength uniformity of the first mounting lug plate 1 can be ensured through the clamping plate, and the possibility of local damage is reduced.
The utility model also provides a loose pulley assembly, including pulley body and pulley pin axle, still include above-mentioned pulley seat. The specific structure of the pulley seat refers to the above embodiments, and since the pulley assembly adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The utility model also provides a tower machine, including above-mentioned loose pulley assembly. The specific structure of the pulley assembly refers to the above embodiments, and since the pulley assembly adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (8)
1. A pulley seat is characterized by comprising a first mounting lug plate and a second mounting lug plate which are arranged side by side, wherein an accommodating cavity for at least partially accommodating a pulley body is formed between the first mounting lug plate and the second mounting lug plate, an installation chute is formed in the inner side wall of the first mounting lug plate and comprises an opening end and a butt end, the opening end extends to an opening of the accommodating cavity, and the butt end is used for abutting against a pulley pin shaft;
the pulley seat further comprises a connecting plate, at least part of the connecting plate seals one side of the accommodating cavity, which is far away from the opening, and two ends of the connecting plate are fixedly connected with the first mounting lug plate and the second mounting lug plate respectively; the distance from the mounting sliding groove to the side edge of the first mounting lug plate is gradually increased along the direction from the connecting plate to the opening.
2. The pulley seat according to claim 1, wherein a predetermined offset angle is provided between an extending direction of the mounting chute and a thickness direction of the connecting plate, and the predetermined offset angle is greater than 10 degrees and less than 50 degrees.
3. The pulley holder according to claim 1, further comprising a clamping plate removably connected to the first mounting lug, the clamping plate configured to abut a side of the pulley pin away from the abutment end.
4. The pulley block according to claim 3, wherein a distance of the card plate to the open end is greater than a distance of the card plate to the abutting end.
5. The pulley block according to claim 4, wherein a ratio of a distance of the card plate to the open end to a distance of the card plate to the abutting end is greater than 1.5 and less than 3.
6. The pulley block according to claim 5, wherein the mounting runner extends through the first mounting lug in a thickness direction thereof; and/or the second mounting lug plate is provided with the mounting chute; and/or, the first mounting lug plate is provided with a first connecting hole and a second connecting hole, the first connecting hole and the second connecting hole are respectively arranged at two sides of the mounting sliding groove, and the first connecting hole and the second connecting hole are respectively used for being connected with two ends of the clamping plate.
7. A sheave assembly comprising a sheave body and a sheave pin, further comprising a sheave block as in any of claims 1-6.
8. A tower crane comprising a sheave assembly as claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220076127.1U CN217264490U (en) | 2022-01-12 | 2022-01-12 | Pulley seat, pulley assembly and tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220076127.1U CN217264490U (en) | 2022-01-12 | 2022-01-12 | Pulley seat, pulley assembly and tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217264490U true CN217264490U (en) | 2022-08-23 |
Family
ID=82894849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220076127.1U Active CN217264490U (en) | 2022-01-12 | 2022-01-12 | Pulley seat, pulley assembly and tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217264490U (en) |
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2022
- 2022-01-12 CN CN202220076127.1U patent/CN217264490U/en active Active
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