CN215048252U - Fixing device for trolley traction pulley at tip of crane boom of tower crane - Google Patents
Fixing device for trolley traction pulley at tip of crane boom of tower crane Download PDFInfo
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- CN215048252U CN215048252U CN202121129818.5U CN202121129818U CN215048252U CN 215048252 U CN215048252 U CN 215048252U CN 202121129818 U CN202121129818 U CN 202121129818U CN 215048252 U CN215048252 U CN 215048252U
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- tower crane
- trolley traction
- tip
- trolley
- pulley
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Abstract
The utility model discloses a tip-end trolley traction pulley's of tower crane jib loading boom fixing device relates to tower crane technical field, include: the mounting seat is provided with an accommodating groove and a bayonet structure, the bayonet structure is used for being clamped on a cross beam at the tip end of a crane boom of the tower crane, and an opening after clamping faces upwards or downwards; the trolley traction pulley is rotatably arranged in the accommodating groove through a rotating shaft, and the axis of the trolley traction pulley is transverse; and the trolley traction pulley is positioned behind the cross beam. According to the utility model provides a tower crane jib loading boom most advanced dolly traction pulley's fixing device can be when the top end of tower machine bumps, is unlikely to damage the pulley part, improves the security.
Description
Technical Field
The utility model relates to a tower crane technical field especially relates to a tower crane jib loading boom most advanced dolly traction sheave's fixing device.
Background
Tower cranes are also called tower cranes. The working space is large, and the device is mainly used for vertical and horizontal conveying of materials in building construction, hoisting operation of building components and the like. The device consists of a metal structure, a working mechanism and an electrical system. The metal structure comprises a tower body, a crane boom, a base and the like. The working mechanism comprises four parts of lifting, amplitude-variable trolley, rotation and walking. The electric system comprises a motor, a controller, a power distribution cabinet, a connecting circuit, a signal and lighting device and the like.
In the prior art, a trolley traction pulley of a certain tower crane is arranged on the outer side of the tip of a crane boom, so that the pulley part protrudes out of the tip, however, the tip is inevitably collided in the tower group operation process, the trolley traction pulley part is damaged, a steel wire rope slides out to grind a pin shaft off, then a part of a beam at the tip is ground, and if the part is not found or overhauled in time, a very serious safety accident is caused; moreover, the part for installing the trolley traction pulley is usually welded, and after the part is damaged, the original damaged part must be cut off again, and a new support frame is welded again, so that the inconvenience of installation and replacement is caused, and therefore, improvement is needed for the installation and fixing part of the trolley traction pulley.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a tower crane jib loading boom point-end dolly traction pulley's fixing device is when the sharp-end collision of tower machine, is unlikely to damage the pulley part, improves the security.
In order to realize the above purpose, the utility model provides a tower crane jib loading boom most advanced dolly traction sheave's fixing device, include:
the mounting seat is provided with an accommodating groove and a bayonet structure, the bayonet structure is used for being clamped on a cross beam at the tip end of a crane boom of the tower crane, and an opening after clamping faces upwards or downwards; and
the trolley traction pulley is rotatably arranged in the accommodating groove through a rotating shaft, and the axis of the trolley traction pulley is transverse; and the trolley traction pulley is positioned behind the cross beam.
In some embodiments, the mounting seat further has a fastening surface thereon, the bayonet structure is an integrally formed gate-shaped frame, one of the inner sides of the gate-shaped frame abuts against the fastening surface and is pressed against the side surface of the cross beam, and the other inner side and the inner bottom of the gate-shaped frame respectively abut against the side surface of the cross beam.
In some embodiments, the gate frame is bent from round steel.
In some embodiments, the opening of the door-shaped frame is also provided with a detachable sealing mechanism.
In some embodiments, the sealing mechanism comprises a sealing plate, the sealing plate is provided with mounting holes at intervals for penetrating through the opening of the door-shaped frame, and the penetrating head is provided with a foldable limiting part.
In some embodiments, the limiting component is a nut, and the nut is in threaded connection with the head of the through mounting hole at the opening of the door type frame.
In some embodiments, the portion of the cart traction sheave in the receiving groove that contacts the traction rope is provided with a blocking member for preventing the traction rope from coming out of the sheave of the cart traction sheave.
In some embodiments, the blocking member is provided at least at the interface where the traction rope contacts or leaves the cart traction sheave.
In some embodiments, the blocking member is a threaded rod disposed through the mount.
Compared with the prior art, the beneficial effects of the utility model are that: the fixing device for the trolley traction pulley at the tip of the crane boom of the tower crane is provided, so that the pulley part is not damaged at least when the tip of the tower crane collides, and the safety is improved.
In addition, the bayonet structure on the device is easy to manufacture, high in strength, easy to install and the like.
Drawings
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is a schematic front view of an embodiment of the present invention;
FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;
fig. 3 is a schematic top view of fig. 2 according to the present invention.
In the figure: 1. a mounting seat; 11. accommodating grooves; 12. a bayonet structure; 13. fastening the surface; 2. a trolley traction pulley; 3. a sealing plate; 4. a limiting component; 5. a blocking member.
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. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, an embodiment of the present invention provides a fixing device for a trolley traction sheave at the tip of a boom of a tower crane, including:
the mounting seat 1 is provided with a receiving groove 11 and a bayonet structure 12, wherein the bayonet structure 12 is used for being clamped on a cross beam at the tip end of a crane boom of the tower crane, and an opening after clamping faces upwards or downwards; and
the trolley traction pulley 2 is rotatably arranged in the accommodating groove 11 through a rotating shaft, a bearing can be further arranged at the matching part of the rotating shaft and the trolley traction pulley 2, the accommodating groove 11 can be of an open groove structure, the groove width is slightly larger than the width of the trolley traction pulley 2, and the axis of the trolley traction pulley 2 is in the transverse direction; and the trolley traction pulley 2 is positioned behind the cross beam, namely on one side close to the tower body.
In the concrete use, mount pad 1 passes through bayonet structure 12 block on the most advanced crossbeam of tower crane jib loading boom, and the opening after the block is up or down, here can adopt the tight fit, also can directly adopt steel bayonet structure 12 and welding on the crossbeam, dolly haulage rope walks around dolly traction pulley 2, can understand ground, set up dolly traction pulley 2 in the crossbeam near one side of tower body, can effectively prevent when the most advanced between the tower machine bumps, at first damage the condition of dolly traction pulley 2, thereby security when the tower machine uses has been improved.
In order to enhance the strength of the bayonet structure, in this embodiment, optionally, the mounting base 1 further has a fastening surface 13, the bayonet structure 12 is an integrally formed door-shaped frame, the door-shaped frame has two inner side portions and an inner bottom portion, one of the inner side portions of the door-shaped frame abuts against the fastening surface 13 and is pressed against the side surface of the cross beam, that is, the mounting base 1 is pressed against the side surface of the cross beam, and the other inner side portion and the inner bottom portion of the door-shaped frame abut against the side surface of the cross beam respectively. The strength is ensured through the bayonet structure on the inner side of the door-shaped frame, and the door-shaped frame is integrally formed and has high strength relative to conventional welding connection.
Further, the door-shaped frame is formed by bending round steel. The materials are obtained and the preparation is convenient. A plurality of such cross members may be provided at intervals along the longitudinal extension of the cross member.
Still further, the opening of door type frame still is equipped with detachable and seals the mechanism. The purpose of this design is to prevent the portal frame from falling freely.
Still further, the sealing mechanism comprises a sealing plate 3, mounting holes for penetrating through the opening of the door-shaped frame are formed in the sealing plate 3 at intervals, and a foldable limiting part 4 is arranged at the penetrating head part. The stopper 4 may be a pin, a retainer, or the like penetrating the head, and is easily attached and detached.
Still further, the limiting component 4 is a nut, and the nut is in threaded connection with the head of a through mounting hole at the opening of the door-shaped frame. The manufacturing is convenient, and the tightness of the door-shaped frame and the beam during installation can be adjusted.
In order to prevent the traction rope from coming out of the sheave of the trolley traction sheave, in this embodiment, optionally, the portion of the trolley traction sheave 2 in the accommodating groove 11, which portion is in contact with the traction rope, is provided with a blocking member 5, and the blocking member 5 is used for preventing the traction rope from coming out of the sheave of the trolley traction sheave 2.
Further, said blocking member 5 is arranged at least at the interface where the traction rope is in contact with or leaves the trolley traction sheave 2.
Still further, the blocking component 5 is a screw rod penetrating through the mounting seat 1, so that the mounting and dismounting are convenient, and the rod part of the screw rod blocks the wheel notch of the pulley. As shown in fig. 2, three screws are provided, surrounding a part of approximately half of the circumference of the trolley traction sheave 2.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Claims (9)
1. A fixing device for a trolley traction pulley at the tip of a boom of a tower crane is characterized by comprising:
the mounting seat (1) is provided with an accommodating groove (11) and a bayonet structure (12), the bayonet structure (12) is used for being clamped on a cross beam at the tip end of a crane boom of the tower crane, and an opening after clamping faces upwards or downwards; and
the trolley traction pulley (2) is rotatably arranged in the accommodating groove (11) through a rotating shaft, and the axis is in the transverse direction; and the trolley traction pulley (2) is positioned behind the cross beam.
2. The device for fixing the trolley traction pulley at the tip of the tower crane boom according to claim 1, wherein the mounting seat (1) is further provided with a fastening surface (13), the bayonet structure (12) is an integrally formed door-shaped frame, one inner side portion of the door-shaped frame abuts against the fastening surface (13) and is pressed against the side surface of the cross beam, and the other inner side portion and the inner bottom portion of the door-shaped frame respectively abut against the side surface of the cross beam.
3. The device for fixing the trolley traction pulley at the tip of the boom of the tower crane according to claim 2, wherein the gate frame is formed by bending round steel.
4. The device for fixing the trolley traction pulley at the tip end of the tower crane boom of claim 3, wherein a detachable sealing mechanism is further arranged at the opening of the door-shaped frame.
5. The fixing device for the trolley traction pulley at the tip end of a tower crane boom of claim 4 is characterized in that the sealing mechanism comprises a sealing plate (3), the sealing plate (3) is provided with mounting holes at intervals for penetrating through the opening of the portal frame, and the penetrating head part is provided with a foldable limiting part (4).
6. The device for fixing the trolley traction pulley at the tip of the crane boom of the tower crane according to claim 5, wherein the limiting component (4) is a nut, and the nut is in threaded connection with the head of a mounting hole penetrating through the opening of the portal frame.
7. A tower crane boom tip trolley traction sheave fixing device according to any of claims 1-6, characterized in that the part of the receiving groove (11) where the trolley traction sheave (2) is in contact with the traction rope is provided with a blocking member (5), and the blocking member (5) is used to prevent the traction rope from falling out of the sheave groove of the trolley traction sheave (2).
8. A tower crane boom point trolley traction sheave fixing arrangement according to claim 7, characterized in that the blocking member (5) is provided at least at the interface where the traction rope is in contact with or leaves the trolley traction sheave (2).
9. A fixing device of a trolley traction sheave at the tip of a tower crane boom according to claim 7, characterized in that the blocking member (5) is a screw rod arranged through the mounting seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121129818.5U CN215048252U (en) | 2021-05-25 | 2021-05-25 | Fixing device for trolley traction pulley at tip of crane boom of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121129818.5U CN215048252U (en) | 2021-05-25 | 2021-05-25 | Fixing device for trolley traction pulley at tip of crane boom of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215048252U true CN215048252U (en) | 2021-12-07 |
Family
ID=79210280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121129818.5U Active CN215048252U (en) | 2021-05-25 | 2021-05-25 | Fixing device for trolley traction pulley at tip of crane boom of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215048252U (en) |
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2021
- 2021-05-25 CN CN202121129818.5U patent/CN215048252U/en active Active
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