CN216583927U

CN216583927U - Derrick mast assembly and tower crane

Info

Publication number: CN216583927U
Application number: CN202122263113.9U
Authority: CN
Inventors: 蒋孝德; 刘毅; 冯书华
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Zoomlion Construction Crane Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Zoomlion Construction Crane Co Ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-05-24
Anticipated expiration: 2031-09-17

Abstract

The utility model relates to the field of engineering machinery, and discloses a derrick mast assembly which is applied to a tower crane, wherein the tower crane comprises a balance arm, a cross rod is arranged on the balance arm, the derrick mast assembly comprises a derrick mast and a fastening assembly, and the fastening assembly is arranged on the derrick mast and can clamp the cross rod so as to fix the derrick mast on the cross rod. The derrick mast provided by the utility model clamps the cross rod on the balance arm through the fastening assembly to be fixed on the cross rod, and a derrick mast mounting seat is not required to be specially arranged on the balance arm, so that the space of the balance arm is not occupied, the structure of the balance arm is not required to be modified, and the derrick mast mounting seat is suitable for various tower cranes which are not provided with the derrick mast mounting seat and small tower cranes which cannot be provided with the derrick mast mounting seat, so that maintenance personnel can conveniently maintain a hoisting mechanism through the derrick mast.

Description

Derrick mast assembly and tower crane

Technical Field

The utility model belongs to the field of engineering machinery, and particularly relates to a derrick mast assembly and a tower crane applying the derrick mast assembly.

Background

The hoisting mechanism is a working mechanism used for realizing the lifting of goods in the tower crane, and is an indispensable part in the tower crane, and the technical performance of the tower crane is directly influenced by the advantages and disadvantages of the working performance. The hoisting mechanism generally comprises a driving device, a transmission device, a braking device, a winding system and the like, and is arranged on a balance arm of the tower crane and is higher than the ground, so that once a certain component of the hoisting mechanism breaks down, the maintenance and the replacement are inconvenient.

In order to solve the problem that the hoisting mechanism in high altitude is difficult to maintain, the derrick mast is additionally arranged on the balance arm of the tower crane, is light hoisting equipment and is mainly used for maintaining the hoisting mechanism of the tower crane. When a certain component of the lifting mechanism breaks down, the derrick mast can hoist a new component and a new part on the balance arm, so that the labor intensity of personnel is greatly reduced.

In the correlation technique, the gin pole needs to be installed on the balance arm of the tower crane through the gin pole mounting seat, and for some tower cranes which are not provided with the gin pole mounting seat, the gin pole can be installed only after the structure of the balance arm of the tower crane is modified, and for some small tower cranes, the balance arm lacks the space for installing the gin pole mounting seat and cannot be installed, so that maintenance personnel are difficult to maintain the hoisting mechanism, and the applicability is poor.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects or shortcomings in the prior art, the utility model provides a derrick mast assembly, aiming at solving the technical problem that maintenance personnel are difficult to maintain a hoisting mechanism because the existing derrick mast is difficult to install to a tower crane which is not provided with or cannot be provided with a derrick mast installation seat.

In order to achieve the above object, the present invention provides a derrick mast assembly, which is applied to a tower crane, the tower crane includes a balance arm, the balance arm is provided with a cross rod, and the derrick mast assembly includes:

a derrick mast; and

the fastening assembly is arranged on the derrick mast and can clamp the cross rod so that the derrick mast is fixed on the cross rod.

Optionally, the gin pole includes the stand and locates the gin pole crossbeam on stand top, fastening component locates the bottom of stand.

Optionally, the fastening assembly comprises:

the connecting plate is fixedly connected to the bottom end of the upright column and is perpendicular to the upright column; and

a fastener connected with the connecting plate to define a clamping space with the connecting plate for clamping the cross bar.

Optionally, the horizontal pole is square pipe, the connecting plate is located the top of horizontal pole, the fastener includes connecting bolt and fixed plate, the fixed plate is located the below of horizontal pole and with the connecting plate is relative setting, connecting bolt wears to locate the connecting plate with the fixed plate so that the connecting plate with the fixed plate centre gripping the horizontal pole.

Optionally, the horizontal pole is the pipe, the connecting plate is located the top of horizontal pole, the fastener includes U-shaped connecting bolt, U-shaped connecting bolt cover is located horizontal pole and both ends wear to locate respectively the connecting plate with the connecting plate centre gripping the horizontal pole.

Optionally, the bottom surface of the connecting plate is provided with a stop block for limiting the rotation of the connecting plate around the cross bar.

Optionally, the upright column is of a hollow cylinder structure, a socket is formed in the top end of the upright column, a first annular flange is convexly arranged on the outer edge of the socket, the derrick mast further comprises a rotary column, the bottom end of the rotary column penetrates through the socket to be rotatably inserted into the upright column, a second annular flange which is abutted against the first annular flange is convexly arranged on the outer peripheral wall of the rotary column, and the top end of the rotary column is fixedly connected with one end of the derrick mast cross beam;

the bottom end of the rotary column is provided with a first positioning hole, the side wall of the upright column is provided with a second positioning hole corresponding to the first positioning hole, and the first positioning hole and the second positioning hole are penetrated through by a fastener so that the rotary column and the upright column are relatively fixed.

Optionally, the derrick mast cross beam is provided with a plurality of groups of mounting holes at intervals along the length direction thereof, each group of mounting holes comprises two mounting holes which are oppositely arranged, the derrick mast further comprises a pulley, and the pulley is selectively connected to any one of the plurality of groups of mounting holes through a positioning pin.

Optionally, the gin pole beam comprises:

one end of each of the two sub-beams is fixedly connected with the top end of the rotary column, the two sub-beams are arranged side by side and at intervals to define a gap for accommodating the pulley, and two mounting holes in each group of mounting holes are respectively formed in the two sub-beams; and

and the connecting baffle plates are arranged at two ends of the sub-beams far away from one end of the rotary column, and the two ends of the sub-beams are respectively fixedly connected with the two sub-beams.

The utility model also provides a tower crane which comprises a balance arm and the derrick mast assembly, wherein the derrick mast assembly is arranged on the balance arm.

Through the technical scheme, the derrick booms clamp the cross rods on the balance arms through the fastening assemblies to be fixed on the cross rods, and the derrick boom mounting seats are not required to be specially arranged on the balance arms, so that the space of the balance arms is not occupied, the structure of the balance arms is not required to be modified, the derrick booms are suitable for various tower cranes which are not provided with the derrick boom mounting seats and small tower cranes which cannot be provided with the derrick boom mounting seats, and therefore maintenance personnel can maintain the hoisting mechanism through the derrick booms.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of a partial structure of a tower crane according to an embodiment of the present invention;

fig. 2 is a schematic view of the installation of the gin pole assembly of fig. 1 to a support beam of a hoisting mechanism;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic top view of the structure of FIG. 2;

FIG. 5 is a schematic view of the installation of a gin pole assembly according to another embodiment of the present invention;

FIG. 6 is a partial enlarged view of FIG. 5 at B;

FIG. 7 is a schematic structural view of the gin pole beam and the swing post of FIG. 2;

FIG. 8 is a schematic structural view of the column of FIG. 2;

fig. 9 is a schematic top view of the derrick mast of fig. 2.

Description of reference numerals:

1 balance arm 11 Cross-Bar

2 raking rod

21 column 211 first annular flange

22 derrick mast beam 221 cross bar

222 connecting baffle 23 rotary column

231 second annular flange 24 pulley

3 fastening assembly

31 connecting plate 311 stop block

32 fastener 321 connecting bolt

322 fixed plate 323U-shaped connecting bolt

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like are generally described with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

An embodiment of the utility model firstly provides a derrick mast assembly, and as shown in fig. 1, the derrick mast assembly is applied to a tower crane, the tower crane comprises a balance arm 1, a cross rod 11 is arranged on the balance arm 1, the derrick mast assembly comprises a derrick mast 2 and a fastening assembly 3, and the fastening assembly 3 is arranged on the derrick mast 2 and can clamp the cross rod 11 so as to fix the derrick mast 2 on the cross rod 11.

The cross bar 11 refers to a rod body transversely disposed on the balance arm 1 of the tower crane.

Understandably, to the tower crane of difference, all be equipped with various horizontal poles 11 on the balance arm 1, all the body of rod that transversely sets up on the balance arm all can be horizontal pole 11 in order to supply the 3 centre grippings of fastening component, so, the horizontal pole 11 on the balance arm 1 is in order to fix on horizontal pole 11 through the 3 centre gripping of fastening component to gin pole 2, the dismouting is simple and convenient, need not to set up the gin pole mount pad specially on balance arm 1, also need not to change the structure of balance arm 1, do not occupy the space of balance arm 1, be applicable to the various tower crane that do not dispose the gin pole mount pad and the small-size tower crane that can't dispose the gin pole mount pad, thereby the maintenance personal of being convenient for maintains hoisting mechanism through the gin pole.

In this embodiment, referring to fig. 2 to 9, the cross bar 11 is selected as a supporting cross beam of the lifting mechanism on the balance arm 1, so that the derrick mast can be arranged at one side adjacent to the lifting mechanism, and the maintenance personnel can maintain the lifting mechanism through the derrick mast.

In one embodiment, referring to fig. 2 to 9, the gin pole 2 comprises a vertical pole 21 and a gin pole beam 22 arranged at the top end of the vertical pole 21, and the fastening assembly 3 is arranged at the bottom end of the vertical pole 21.

In the present embodiment, the derrick boom 22 is used for installing the pulley, and is disposed substantially perpendicular to the column 21; it should be noted that the upright 21 is a vertically arranged column for supporting the gin pole beam 22.

It can be understood that the fastening component 3 is disposed at the bottom end of the upright post 21, and the fastening component 3 for children can clamp the cross rod 11 to vertically fix the upright post 21 on the cross rod 11, i.e. fix the gin pole 2 on the cross rod 11.

In one embodiment, referring to fig. 2 and 3, the fastening assembly 3 includes a connecting plate 31 and a fastening member 32, the connecting plate 31 is fixedly connected to the bottom end of the upright 21 and is vertically disposed with respect to the upright 21, and the fastening member 32 is connected to the connecting plate 31 to define a clamping space with the connecting plate 31 for clamping the crossbar 11.

It can be understood that the clamping space for clamping the cross rod 11 is defined by the fastener 32 and the connecting plate 31 together, so that the fastening assembly 3 clamps the cross rod 11, and in addition, the connecting plate 31 and the upright post 21 are vertically arranged, and the upright post 21 can be ensured to be vertically arranged only by ensuring that the connecting plate 31 is horizontally arranged.

In this embodiment, the connecting plate 31 is fixedly connected to the bottom end of the upright post 21 by welding or integrally forming, the connecting plate 31 is made of a metal material with high structural strength, and at least one reinforcing rib is connected between the connecting plate 31 and the upright post 21 to improve the connection strength between the connecting plate 31 and the upright post 21, thereby improving the structural reliability of the gin pole 2.

In an embodiment, referring to fig. 2 and 3, the cross bar 11 is a square tube, the connecting plate 31 is disposed above the cross bar 11, the fastening member 32 includes a connecting bolt 321 and a fixing plate 322, the fixing plate 322 is disposed below the cross bar 11 and is opposite to the connecting plate 31, and the connecting bolt 321 is disposed through the connecting plate 31 and the fixing plate 322 so that the connecting plate 31 and the fixing plate 322 clamp the cross bar 11.

It can be understood that the fastening assembly 3 clamps the crossbar 11 by fastening the connecting bolt 321 to the connecting plate 31 and the fixing plate 322 so that the connecting plate 31 and the fixing plate 322 clamp the crossbar 11.

It can understand, horizontal pole 11 is square pipe, and top surface and bottom surface are the level setting, and the bottom surface that is the connecting plate 31 of level setting can laminate and butt in the top surface of horizontal pole 11, and simultaneously, the top surface that is the fixed plate 322 of level setting can laminate and butt in the bottom surface of horizontal pole 11, so, effectively avoid connecting bolt 321's fastening strength not enough, lead to connecting plate 31 and fixed plate 322 not enough to the clamping-force of horizontal pole 11, and then lead to connecting plate 31 to rotate the condition that drives stand 21 rotational deviation around horizontal pole 11.

In the present embodiment, the fastening member 32 includes two sets of connecting bolts 321, each set of connecting bolts 321 includes at least one connecting bolt 321, and the two sets of connecting bolts 321 are respectively oppositely disposed on two sides of the cross bar 11 in the width direction.

In another embodiment, referring to fig. 5 and 6, the cross bar 11 is a circular tube, the connecting plate 31 is disposed above the cross bar 11, and the fastening member 32 includes a U-shaped connecting bolt 323, the U-shaped connecting bolt 323 is sleeved on the cross bar 11, and two ends of the U-shaped connecting bolt 323 respectively penetrate through the connecting plate 31 to clamp the cross bar 11 with the connecting plate 31.

It can be understood that the cross bar 11 is clamped by the fastening assembly 3 by the U-shaped connecting bolt 323 sleeved on the cross bar 11 and connected with the connecting plate 31, so that the cross bar 11 is clamped by the U-shaped connecting bolt 323 and the connecting plate 31.

In this embodiment, the opening of the U-shaped connecting bolt 323 is disposed upward so that two ends thereof are respectively and fixedly disposed through the connecting plate 31, the connecting plate 31 abuts on the upper side of the crossbar 11, and the bent portion of the U-shaped connecting bolt 323 abuts on the lower side of the crossbar 11, thereby clamping the crossbar 11.

In one embodiment, as shown in fig. 5 and 6, the bottom surface of the connecting plate 31 is provided with a stop 311 for limiting the rotation of the connecting plate about the crossbar 11.

It can be understood that, when the cross bar 11 is a round tube, the connecting plate 31 rotates around the cross bar 11 to drive the upright post 21 to rotate and shift under the condition that the clamping force of the U-shaped connecting bolt 323 and the connecting plate 31 on the cross bar 11 is insufficient, and the stop block 311 is provided to effectively avoid the above situation.

In this embodiment, the stop block 311 is fixedly connected to the connecting plate 31 by welding or integral molding, and the stop block 311 abuts against a component on the balance arm 1, for example, when the gin pole is mounted on a supporting beam of a hoisting mechanism, the stop block 311 is configured to maintain abutment against a vertical plate of the hoisting mechanism, so as to limit the rotation of the connecting plate 31.

In an embodiment, referring to fig. 8, the upright post 21 is a hollow cylinder structure, the top end of the upright post is provided with a socket, the outer edge of the socket is convexly provided with a first annular flange 211, the gin pole 2 further comprises a rotary post 23, the bottom end of the rotary post 23 penetrates through the socket to be rotatably inserted into the upright post 21, the outer peripheral wall of the rotary post 23 is convexly provided with a second annular flange 231 abutting against the first annular flange 211, and the top end of the rotary post 23 is fixedly connected with one end of the gin pole beam 22; the bottom end of the rotary column 23 is provided with a first positioning hole, the side wall of the upright column 21 is provided with a second positioning hole corresponding to the first positioning hole, and the first positioning hole and the second positioning hole are penetrated through by a fastener so that the rotary column 23 and the upright column 21 are relatively fixed.

It can be understood that the first annular flange 211 and the second annular flange 231 are abutted to each other, so that the connection strength between the rotary column 23 and the upright column 21 can be improved, and the structural strength of the gin pole 2 can be further improved.

It can be understood that, by providing a plurality of first positioning holes or a plurality of second positioning holes, the rotary column 23 can be adjusted in the rotary position of the upright column 21 according to the requirement, so as to adjust the position of the gin pole beam 22, and the utility model has good practicability.

In one embodiment, the derrick boom 22 is provided with a plurality of sets of mounting holes at intervals along the length direction thereof, each set of mounting holes includes two oppositely disposed mounting holes, the derrick 2 further includes a pulley 24, and the pulley 24 is selectively connected to any one of the plurality of sets of mounting holes by a positioning pin.

It can be understood that the pulley 24 is selectively connected to any one of the sets of mounting holes through a positioning pin, so that the position of the pulley 24 in the length direction of the gin pole cross beam 22 can be adjusted, and the adjustment of the hoisting amplitude is conveniently realized.

In an embodiment, the gin pole beam 22 includes two sub beams 221 and a connection baffle 222, one end of each of the two sub beams 221 is fixedly connected to the top end of the rotary column 23, the two sub beams 221 are arranged side by side and at intervals to define a gap for accommodating the pulley 24, two mounting holes in each set of mounting holes are respectively opened in the two sub beams 221, the connection baffle 222 is arranged at one end of each of the two sub beams 221 far away from the rotary column 23, and two ends of the connection baffle are respectively fixedly connected to the two sub beams 221.

In the present embodiment, the pulley 24 is connected to a set of mounting holes by a positioning pin to be disposed in the gap between the two sub beams 221.

It can be understood that the connection baffle 222 not only serves to connect the ends of the two sub-beams 221, but also serves to limit the lifting rope wound around the pulley 24, so as to prevent the lifting rope on the pulley 24 from jumping outwards and disengaging.

In this embodiment, two ends of the connection baffle 222 are fixedly connected to the two sub-beams 221 by welding.

The utility model also provides a tower crane, which comprises the balance arm 1 and the derrick mast assembly. The concrete structure of the derrick mast assembly refers to the above embodiments, and the tower crane adopts all technical solutions of all the above embodiments, so that the derrick mast assembly at least has all the beneficial effects brought by the technical solutions of the above embodiments, and further description is omitted.

Specifically, the derrick mast assembly is arranged on a balance arm of the tower crane.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. 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 the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. The utility model provides a gin pole subassembly, gin pole subassembly is applied to tower crane, tower crane includes balance arm (1), be equipped with horizontal pole (11) on balance arm (1), its characterized in that, the gin pole subassembly includes:

a derrick mast (2); and

the fastening assembly (3) is arranged on the derrick mast (2) and can clamp the cross rod (11) so that the derrick mast (2) is fixed on the cross rod (11).

2. The gin pole assembly of claim 1, wherein the gin pole (2) comprises a stand column (21) and a gin pole beam (22) arranged at the top end of the stand column (21), and the fastening assembly (3) is arranged at the bottom end of the stand column (21).

3. Derrick assembly according to claim 2, characterized in that the fastening assembly (3) comprises:

the connecting plate (31) is fixedly connected to the bottom end of the upright post (21) and is perpendicular to the upright post (21); and

a fastener (32), wherein the fastener (32) is connected with the connecting plate (31) to define a clamping space for clamping the cross bar (11) together with the connecting plate (31).

4. The gin pole assembly of claim 3, wherein the cross bar (11) is a square tube, the connecting plate (31) is arranged above the cross bar (11), the fastening member (32) comprises a connecting bolt (321) and a fixing plate (322), the fixing plate (322) is arranged below the cross bar (11) and is opposite to the connecting plate (31), and the connecting bolt (321) penetrates through the connecting plate (31) and the fixing plate (322) to enable the connecting plate (31) and the fixing plate (322) to clamp the cross bar (11).

5. The gin pole assembly of claim 3, wherein the cross bar (11) is a round tube, the connecting plate (31) is arranged above the cross bar (11), the fastener (32) comprises a U-shaped connecting bolt (323), the U-shaped connecting bolt (323) is sleeved on the cross bar (11), and two ends of the U-shaped connecting bolt are respectively arranged through the connecting plate (31) to clamp the cross bar (11) with the connecting plate (31).

6. The gin pole assembly of claim 5, wherein the underside of the connecting plate (31) is provided with a stop (311) for limiting rotation thereof about the crossbar (11).

7. The gin pole assembly of any one of claims 2 to 6, wherein the stand column (21) is of a hollow cylinder structure, a socket is formed in the top end of the stand column, a first annular flange (211) is convexly arranged on the outer edge of the socket, the gin pole (2) further comprises a rotary column (23), the bottom end of the rotary column (23) penetrates through the socket to be rotatably inserted into the stand column (21), a second annular flange (231) abutting against the first annular flange (211) is convexly arranged on the outer peripheral wall of the rotary column (23), and the top end of the rotary column (23) is fixedly connected with one end of the gin pole cross beam (22);

the bottom end of the rotary column (23) is provided with a first positioning hole, the side wall of the upright column (21) is provided with a second positioning hole corresponding to the first positioning hole, and a fastener penetrates through the first positioning hole and the second positioning hole to enable the rotary column (23) and the upright column (21) to be relatively fixed.

8. The gin pole assembly of claim 7, wherein the gin pole cross member (22) is provided with a plurality of sets of mounting holes at intervals along the length direction thereof, each set of mounting holes comprises two oppositely-arranged mounting holes, the gin pole (2) further comprises a pulley (24), and the pulley (24) is selectively connected to any one of the sets of mounting holes through a positioning pin.

9. Derrick assembly according to claim 8, characterized in that the derrick boom (22) comprises:

one end of each of the two sub-beams (221) is fixedly connected with the top end of the corresponding rotary column (23), the two sub-beams (221) are arranged side by side at intervals to define a gap for accommodating the corresponding pulley (24), and two mounting holes in each group of mounting holes are respectively formed in the two sub-beams (221); and

the connecting baffle (222) is arranged at one end, far away from the rotary column (23), of the two sub-beams (221), and the two ends of the connecting baffle (222) are fixedly connected with the two sub-beams (221) respectively.

10. A tower crane comprising a balance arm and a gin pole assembly as claimed in any one of claims 1 to 9, wherein the gin pole assembly is provided on the balance arm.