CN111320089B

CN111320089B - Adjustable support of tower crane

Info

Publication number: CN111320089B
Application number: CN202010346327.XA
Authority: CN
Inventors: 李�杰
Original assignee: Shanghai Purple Xun Construction Machinery And Equipment Co ltd
Current assignee: Shanghai Purple Xun Construction Machinery And Equipment Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-12-07
Anticipated expiration: 2040-04-27
Also published as: CN111320089A

Abstract

The invention provides an adjustable support of a tower crane, which relates to the technical field of supports and comprises a first A-shaped frame and a second A-shaped frame, wherein a first block is rotatably connected to the outer surface of the first A-shaped frame through a bolt, a limiting groove is formed in the side wall of one side of the outer surface of the second A-shaped frame, a second block is slidably connected to the inner wall of the limiting groove, mounting columns are fixedly mounted at the tops of the first block and the second block, and mounting plates are fixedly mounted at the ends, far away from the first block and the second block, of the two mounting columns respectively. According to the invention, the resilience force of the limiting spring enables the second block to move more stably when driving the bracket to be finely adjusted, and the fixed positions of the first A-shaped frame and the second A-shaped frame and the bracket are adjustable, so that the first A-shaped frame and the second A-shaped frame can be moved and adjusted to adapt to the position of the arm root section, the first A-shaped frame and the second A-shaped frame can be correctly collided, the anti-collision main string part of the arm root section can be effectively impacted, the conditions of working condition deterioration and the like caused by dislocation collision and stress are avoided, and the practicability of the bracket is improved.

Description

Adjustable support of tower crane

Technical Field

The invention relates to the technical field of supports, in particular to an adjustable support of a tower crane.

Background

The integral anti-back-tilting support is adopted in the prior art and is connected with the A-shaped frame through a pin shaft, the integral anti-back-tilting support cannot be adjusted and moved in the direction of the A-shaped frame due to the connection, and therefore after the integral anti-back-tilting support is installed, dislocation occurs between the integral anti-back-tilting support and an arm frame, the anti-collision main chord of the arm root section cannot be effectively impacted, dislocation collision is formed, and the stress working condition is deteriorated.

In order to solve this problem among the prior art, need the workshop A cabinet frame, the integral hypsokinesis support of preventing and arm root joint join in marriage the welding together, in addition, the operating height in workshop has been surpassed to the A cabinet frame of some model tower machines, and this can lead to the not good operation in workshop, even join in marriage the welding and come out, also deposits the problem that the integral hypsokinesis support of preventing can't exchange, the change after the customer of being not convenient for damages at the integral hypsokinesis support of preventing.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an adjustable support of a tower crane.

In order to achieve the purpose, the invention adopts the following technical scheme: an adjustable support of a tower crane comprises a first A-shaped frame and a second A-shaped frame, wherein the outer surface of the first A-shaped frame is rotatably connected with a first block through a bolt, a limiting groove is formed in the side wall of one side of the outer surface of the second A-shaped frame, the inner wall of the limiting groove is slidably connected with a second block, mounting columns are fixedly mounted at the tops of the first block and the second block respectively, mounting plates are fixedly mounted at the ends, away from the first block and the second block, of the two mounting columns respectively, a second rotating shaft is fixedly mounted on the two sides of the top of each mounting plate, the mounting plates are rotatably connected with a support through the second rotating shafts, an adjusting structure is fixedly mounted on the side wall of one side of the first A-shaped frame and comprises a sliding groove, a rack is slidably connected to the inner wall of the sliding groove, a motor is fixedly mounted on the side wall of one side of the first A-shaped frame, and the output end of the motor is movably connected with a gear, the gear is located at the upper end of the rack.

Preferably, the inside fixed mounting of No. two pieces has stop device, stop device includes the pivot No. one, No. two pieces rotate through the pivot No. one and rotate and be connected with the sleeve pipe, sheathed tube inner wall sliding connection has the slide bar.

Preferably, the inside fixed mounting of mounting panel has fixed knot to construct, fixed knot constructs including the rectangular channel, the rectangular channel has been seted up at the top of mounting panel, the inner wall sliding connection of rectangular channel has the slider, the inside of slider articulates there is the hinge bar No. one, the one end both sides that the slider was kept away from to the hinge bar all articulate there is the hinge bar No. two, the one end that the hinge bar was kept away from to the hinge bar No. two articulates there is the bolt, the bolt runs through the mounting panel and extends to the inside of erection column.

Preferably, the inside fixed mounting of rectangular channel has reset spring, the one end and the slider fixed connection that rectangular channel was kept away from to reset spring.

Preferably, the outer surface of the sliding rod is sleeved with an elastic spring, and two ends of the elastic spring are respectively and fixedly connected with the outer surfaces of the sleeve and the sliding rod.

Preferably, No. two A cabinet frame and No. two the surface of piece have all seted up spacing holes, the big or small size in spacing hole and the big or small size looks adaptation of slide bar, the inner wall fixed mounting in spacing groove has spacing spring, spacing spring keeps away from the one end and No. two piece fixed connection in spacing groove, No. one the piece with No. two relative one sides of piece fixed mounting respectively has stop collar and slender pole, the outer wall of slender pole and the inner wall sliding connection of stop collar, the one end fixed connection of spout is kept away from to the surface of slender pole and rack.

Compared with the prior art, the invention has the advantages and positive effects that,

1. in the invention, an adjusting structure and a limiting structure are adopted, when the position of the bracket needs to be slightly adjusted, a motor is started, the motor drives a gear to rotate, a gear and a rack are meshed with each other, the rack slides along the inner wall of a sliding groove, the rack drives a thin rod to slide along the inner wall of a fiber sleeve, a bolt is pulled away from the bolt, the bolt is separated from a limiting hole and extrudes an elastic spring, a second block slides along the inner wall of a limiting groove and extrudes the limiting spring to achieve the effect of slightly adjusting the bracket, the bolt is loosened at the same time, the bolt is inserted into the limiting hole through the resilience force of the elastic spring to achieve the effect of limiting the second block, the limiting spring is arranged at the same time, the resilience force of the limiting spring is set, when the second block drives the bracket to be slightly adjusted, the movement is more stable, and the fixed positions of a first-shaped frame and a second-shaped frame and the bracket are adjustable, therefore, can remove and adjust to the position of adaptation arm root section makes the two collision that can be correct, effectively strikes arm root section anticollision main chord department, avoids forming the condition such as operating mode aggravation that dislocation collision and atress lead to and takes place, has improved the practicality of this support.

2. According to the invention, a fixing structure is adopted, so that when the support is damaged or needs maintenance, the sliding block slides to enable the sliding block to slide along the inner wall of the rectangular groove, the sliding block extrudes the return spring, the sliding block drives the first hinge rod to move, the first hinge rod pulls the second hinge rod, the second hinge rod drives the bolt to be separated from the mounting column, and the support can be disassembled.

Drawings

FIG. 1 is a schematic perspective view of an adjustable support of a tower crane according to the present invention;

FIG. 2 is a schematic side view of an adjustable support of a tower crane according to the present invention;

FIG. 3 is a schematic rear view of an adjustable support of a tower crane according to the present invention;

FIG. 4 is a schematic view of the structure of FIG. 1 at A according to the present invention;

FIG. 5 is a schematic view of the structure of FIG. 2 at B according to the present invention.

Illustration of the drawings:

1. a first A-shaped frame; 11. a first block; 12. a limiting sleeve; 2. a second A-shaped frame; 21. a block number two; 211. a limiting device; 2111. a first rotating shaft; 2112. a sleeve; 2113. a slide bar; 2114. an elastic spring; 22. a thin rod; 23. a limiting groove; 24. a limiting hole; 25. a limiting spring; 3. an adjustment structure; 31. a chute; 32. a rack; 33. a motor; 34. a gear; 4. mounting a column; 5. mounting a plate; 51. a second rotating shaft; 52. a fixed structure; 521. a rectangular groove; 522. a slider; 523. a first hinge rod; 524. a second hinge rod; 525. a bolt; 526. a return spring; 6. and (4) a bracket.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 5, the invention provides an adjustable support for a tower crane, which comprises a first a-shaped frame 1 and a second a-shaped frame 2, wherein the outer surface of the first a-shaped frame 1 is rotatably connected with a first block 11 through a bolt, a limiting groove 23 is formed in the side wall of one side of the outer surface of the second a-shaped frame 2, the inner wall of the limiting groove 23 is slidably connected with a second block 21, mounting columns 4 are fixedly mounted at the tops of the first block 11 and the second block 21, mounting plates 5 are fixedly mounted at the ends of the two mounting columns 4 respectively far away from the first block 11 and the second block 21, second rotating shafts 51 are fixedly mounted at the two sides of the tops of the mounting plates 5, the mounting plates 5 are rotatably connected with a support 6 through the second rotating shafts 51, an adjusting structure 3 is fixedly mounted on the side wall of one side of the first a-shaped frame 1, limiting holes 24 are formed in the outer surfaces of the second a-shaped frame 2 and the second block 21, the size of the limiting holes 24 is matched with the size of a sliding rod 2113, the inner wall fixed mounting of spacing groove 23 has spacing spring 25, and spacing spring 25 keeps away from the one end and No. two piece 21 fixed connection of spacing groove 23, a piece 11 with No. two relative one sides of piece 21 fixed mounting respectively has stop collar 12 and slender rod 22, the outer wall of slender rod 22 and the inner wall sliding connection of stop collar 12, and the one end fixed connection of spout 31 is kept away from to the surface of slender rod 22 and rack 32.

The specific arrangement and function of the adjustment structure 3, the limiting means 211 and the fixing structure 52 will be described in detail below.

As shown in fig. 1 and 5, the adjusting structure 3 includes a sliding slot 31, a rack 32 is slidably connected to an inner wall of the sliding slot 31, a motor 33 is fixedly installed on a side wall of the first a-shaped frame 1, an output end of the motor 33 is movably connected to a gear 34, the gear 34 is located at an upper end of the rack 32, a limiting device 211 is fixedly installed inside the second block 21, the limiting device 211 includes a first rotating shaft 2111, the second block 21 is rotatably connected to a sleeve 2112 through the first rotating shaft 2111, an inner wall of the sleeve 2112 is slidably connected to a sliding rod 2113, an elastic spring 2114 is sleeved on an outer surface of the sliding rod 2113, two ends of the elastic spring 2114 are respectively fixedly connected to outer surfaces of the sleeve 2112 and the sliding rod 2113, the limiting spring 25 is provided by using the adjusting structure 3 and the limiting device 211, the resilience of the limiting spring 25 makes the second block 21 drive the bracket 6 to be finely adjusted, the movement is more stable, and the fixed positions of the first a-shaped frame 1 and the second a-shaped frame 2 and the bracket 6 are adjustable, therefore, can remove and adjust to the position of adaptation arm root section makes the two collision that can be correct, effectively strikes arm root section anticollision main chord department, avoids forming the condition such as operating mode aggravation that dislocation collision and atress lead to and takes place, has improved this support 6's practicality.

The whole adjusting structure 3 and the limiting device 211 have the effects that when the position of the bracket 6 needs to be slightly adjusted, the motor 33 is started, the motor 33 drives the gear 34 to rotate, the gear 34 is meshed with the rack 32, the rack 32 slides along the inner wall of the sliding groove 31, the rack 32 drives the thin rod 22 to slide along the inner wall of the fiber sleeve, the thin rod is pulled away from the bolt 525, the bolt 525 is separated from the limiting hole 24 and extrudes the elastic spring 2114, the second block 21 slides along the inner wall of the limiting groove 23 and extrudes the limiting spring 25 to achieve the effect of slightly adjusting the bracket 6, the bolt 525 is loosened at the same time, the bolt 525 is inserted into the limiting hole 24 through the resilience force of the elastic spring 2114 to achieve the effect of the second limiting block 21, the limiting spring 25 is arranged at the same time, the resilience force of the limiting spring 25 is utilized, and when the second block 21 drives the bracket 6 to be slightly adjusted, the movement is more stable, because the fixed positions of the first A-shaped frame 1 and the second A-shaped frame 2 and the support 6 are adjustable, the first A-shaped frame and the second A-shaped frame can be moved and adjusted to adapt to the position of the arm root joint, so that the first A-shaped frame and the second A-shaped frame can be correctly collided, the anti-collision main string position of the arm root joint is effectively impacted, the conditions of working condition deterioration and the like caused by dislocation collision and stress are avoided, and the practicability of the support 6 is improved.

As shown in fig. 1 and 4, a fixing structure 52 is fixedly installed inside the mounting plate 5, the fixing structure 52 includes a rectangular groove 521, the top of the mounting plate 5 is provided with the rectangular groove 521, the inner wall of the rectangular groove 521 is slidably connected with a slider 522, the inside of the slider 522 is hinged with a first hinge rod 523, both sides of one end of the first hinge rod 523 away from the slider 522 are hinged with a second hinge rod 524, one end of the second hinge rod 524 away from the first hinge rod 523 is hinged with a bolt 525, the bolt 525 penetrates through the mounting plate 5 and extends into the mounting column 4, a return spring 526 is fixedly installed inside the rectangular groove 521, one end of the return spring 526 away from the rectangular groove 521 is fixedly connected with the slider 522, and the fixing structure 52 is adopted, the present invention has the characteristics of simple structure, convenient installation and adjustment and high processing and assembling efficiency, further, when the bracket 6 is damaged, a customer can also conveniently replace, thereby improving the interchangeability of the bracket 6.

The whole fixing structure 52 has the effect that when the support 6 is damaged or needs to be maintained, the sliding block 522 slides along the inner wall of the rectangular groove 521, the sliding block 522 extrudes the return spring 526, the sliding block 522 drives the first hinge rod 523 to move, the first hinge rod 523 pulls the second hinge rod 524, the second hinge rod 524 drives the bolt 525 to be separated from the mounting column 4, and the support 6 can be detached.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes by using the technical contents disclosed in the above description to other fields, but any simple modification, equivalent change and change made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. An adjustable support of a tower crane comprises a first A-shaped frame (1) and a second A-shaped frame (2) and is characterized in that the outer surface of the first A-shaped frame (1) is rotatably connected with a first block (11) through a bolt, a limiting groove (23) is formed in the side wall of one side of the outer surface of the second A-shaped frame (2), the inner wall of the limiting groove (23) is slidably connected with a second block (21), mounting columns (4) are fixedly mounted at the tops of the first block (11) and the second block (21), mounting plates (5) are fixedly mounted at one ends, far away from the first block (11) and the second block (21), of the two mounting columns (4) respectively, two rotating shafts (51) are fixedly mounted at the two sides of the top of the mounting plates (5), the mounting plates (5) are rotatably connected with a support (6) through the second rotating shafts (51), an adjusting structure (3) is fixedly mounted on the side wall of one side of the first A-shaped frame (1), adjust structure (3) and include spout (31), the inner wall sliding connection of spout (31) has rack (32), one side lateral wall fixed mounting of a cabinet frame (1) has motor (33), the output swing joint gear (34) of motor (33), gear (34) are located the upper end of rack (32).

2. The adjustable support of the tower crane according to claim 1, wherein: no. two inside fixed mounting of piece (21) has stop device (211), stop device (211) include pivot (2111), No. two piece (21) rotate through pivot (2111) and rotate and be connected with sleeve pipe (2112), the inner wall sliding connection of sleeve pipe (2112) has slide bar (2113).

3. The adjustable support of the tower crane according to claim 1, wherein: the inside fixed mounting of mounting panel (5) has fixed knot to construct (52), fixed knot constructs (52) and includes rectangular channel (521), rectangular channel (521) have been seted up at the top of mounting panel (5), the inner wall sliding connection of rectangular channel (521) has slider (522), the inside of slider (522) articulates there is hinge bar (523), the one end both sides of keeping away from slider (522) of hinge bar (523) all articulate there is No. two hinge bar (524), the one end of keeping away from a hinge bar (523) of No. two hinge bar (524) articulates there is bolt (525), bolt (525) run through mounting panel (5) and extend to the inside of erection column (4).

4. The adjustable support of a tower crane according to claim 3, wherein: the inside fixed mounting of rectangular channel (521) has reset spring (526), the one end and the slider (522) fixed connection of rectangular channel (521) are kept away from to reset spring (526).

5. The adjustable support of the tower crane according to claim 2, wherein: an elastic spring (2114) is sleeved on the outer surface of the sliding rod (2113), and two ends of the elastic spring (2114) are fixedly connected with the outer surfaces of the sleeve (2112) and the sliding rod (2113) respectively.

6. The adjustable support of the tower crane according to claim 1, wherein: no. two A cabinet frame (2) and No. two the surface of piece (21) has all seted up spacing hole (24), the big or small size of spacing hole (24) and the big or small size looks adaptation of slide bar (2113), the inner wall fixed mounting of spacing groove (23) has spacing spring (25), the one end and No. two piece (21) fixed connection of spacing groove (23) are kept away from in spacing spring (25), a piece (11) with No. two relative one sides of piece (21) fixed mounting respectively has stop collar (12) and pin rod (22), the outer wall of pin rod (22) and the inner wall sliding connection of stop collar (12), the one end fixed connection of spout (31) is kept away from with rack (32) to the surface of pin rod (22).