Support structure for boring column of round steel standard knot of tower crane

Abstract

The utility model discloses a support structure, particularly discloses a support structure for boring a column of a round steel standard knot of a tower crane, and belongs to the technical field of design and manufacture of machining process equipment of building mechanical equipment. The support structure for boring the standard knot stand column of the tower crane is relatively simple in clamping process and capable of remarkably improving the clamping efficiency. The support structure comprises a bottom frame and is characterized in that the support structure further comprises an auxiliary clamping, loading and unloading mechanism and an installation base clamping system, and the auxiliary clamping, loading and unloading mechanism is fixedly installed on the bottom frame through the installation base clamping system; in the boring process, the stand column needing to be machined is rapidly arranged on the support structure through the auxiliary clamping, assembling and disassembling mechanism under the cooperation of the installation base clamping system and is clamped and fixed.

Description

Technical Field

[0001] The utility model relates to a bracket structure, in particular to a bracket structure for boring holes in the columns of round steel standard sections of tower cranes, and belongs to the technical field of design and manufacture of processing process equipment for construction machinery and equipment. Background Art

[0002] When manufacturing the round steel standard sections of tower cranes, it is first necessary to perform boring processing on the four main columns. In the prior art, the clamping scheme for the center holes at both ends of the boring long rod generally adopts the V-block support and two-end pressing scheme. This scheme requires matching corresponding equal-height blocks when clamping round steel with different diameters to achieve the goal of boring the center holes with a boring special machine with fixed positions at both ends. The clamping process is cumbersome and the clamping efficiency is extremely low. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a bracket structure for boring holes in the columns of tower crane standard sections, which has a relatively simple clamping process and can significantly improve the clamping efficiency.

[0004] The technical solution adopted to solve the above technical problem is: a bracket structure for boring holes in the columns of round steel standard sections of tower cranes, including a chassis, characterized in that: the bracket structure further includes an auxiliary clamping and loading / unloading mechanism and an installation base clamping system, and the auxiliary clamping and loading / unloading mechanism is fixedly installed on the chassis through the installation base clamping system; during the boring process, the column to be processed is quickly arranged on the bracket structure and clamped and fixed through the cooperation of the auxiliary clamping and loading / unloading mechanism and the installation base clamping system.

[0005] Furthermore, the chassis includes two support trusses welded by profiled steel, and a set of auxiliary clamping and loading / unloading mechanisms are respectively arranged on each support truss through a set of installation base clamping systems; during the boring process, both ends of the column are clamped on the corresponding support truss through the cooperation of two sets of auxiliary clamping and loading / unloading mechanisms and the corresponding installation base clamping systems.

[0006] The preferred mode of the above solution is that the bracket structure further includes two sets of adjusting components, each set of adjusting components respectively includes a jack rod and a set of jack rod nuts, and a set of jack rod nuts are respectively installed at the geometric center of each set of installation base clamping systems along the horizontal plane, and the jack rod is rotatably connected in the corresponding jack rod nut in a vertically liftable manner; during the boring process, the clamping height of the column to be processed is adjusted through the corresponding jack rod in cooperation with the corresponding jack rod nut.

[0007] Furthermore, the auxiliary clamping and loading / unloading mechanism includes a clamping mounting base and an auxiliary clamping and loading / unloading component. The auxiliary clamping and loading / unloading component is arranged on the clamping system of the mounting base in a manner adapted to the position of the corresponding adjusting component through the clamping mounting base; during the boring process, the end of the column is detachably fixed on the clamping system of the mounting base through the cooperation of the auxiliary clamping and loading / unloading component on the clamping mounting base and the adjusting component.

[0008] The preferred mode of the above solution is that the clamping mounting base is composed of two V-block positioning seats, the auxiliary clamping and loading / unloading component is composed of two V-blocks and two sets of hydraulic push rods. One V-block and one set of hydraulic push rods are arranged on the corresponding V-block positioning seats in a mutually adapted position, and the two sets of V-block positioning seats are arranged on the clamping system of the mounting base in a mutually adapted phase; during the boring process, the end of the column is detachably fixed on the clamping system of the mounting base through the cooperation of the two V-blocks on the two sets of clamping systems of the mounting base; the column after the boring is completed is ejected from the support structure through each set of hydraulic push rods in the cooperation of the corresponding V-blocks.

[0009] Furthermore, the clamping system of the mounting base includes a clamping adjustment component and a mounting base. The ejector nut is arranged at the geometric center of the mounting base along the horizontal plane, and the clamping adjustment component is movably arranged on the mounting base; during the boring process, each set of V-block positioning seats movably arranged on the mounting base adjusts their relative positions to each other and clamps the end of the column through the clamping adjustment component.

[0010] The preferred mode of the above solution is that the mounting base includes a T-slot seat and a T-slot base. The ejector nut is fixedly installed on the T-slot seat, the T-slot seat is movably arranged on the T-slot base, the clamping adjustment component is movably arranged on the T-slot base, and each set of V-block positioning seats arranged on the T-slot seat adjusts their relative positions to each other through the cooperation of the clamping adjustment component on the T-slot seat.

[0011] Furthermore, the clamping adjustment component includes a left-right hand screw pair and a screwed nut seat. A screwed nut seat is respectively installed on the bottom surface of each set of V-block positioning seats extending out of the T-slot seat. The left and right hand screws of the left-right hand screw pair are movably arranged on the T-slot base, and the two screwed nuts with opposite screw directions of the left-right hand screw pair are respectively arranged on the two screwed nut seats. The two sets of V-block positioning seats adjust their relative positions to each other through the cooperation of the left and right hand screws and the screwed nuts on the screwed nut seats.

[0012] The preferred mode of the above solution is that the T-slot base is composed of an open-top box-shaped seat. A card slot is also arranged at the geometric center inside the box-shaped seat, through holes are provided on the side walls at both ends of the box-shaped seat, the middle of the left-right hand screw is supported in the card slot, the two ends of the left-right hand screw respectively pass through the through holes and extend out of the box-shaped seat, and the T-slot seat is arranged on the open top of the box-shaped seat.

[0013] Furthermore, the bracket structure further includes at least one set of supporting brackets, and the column during processing maintains the extension of its axial center line in the horizontal direction through the supporting brackets.

[0014] The beneficial effects of the present utility model are as follows: The technical solution provided by this application is based on the existing chassis. By adding an auxiliary clamping and loading / unloading mechanism and an installation base clamping system to form the bracket structure of this application, and fixing the auxiliary clamping and loading / unloading mechanism on the chassis through the installation base clamping system; in this way, during the boring process, the column to be processed can be quickly arranged on the bracket structure and clamped and fixed through the cooperation of the auxiliary clamping and loading / unloading mechanism and the installation base clamping system. It solves the technical problem in the prior art that when clamping the column with equal-height blocks, the operation is very inconvenient, and when clamping columns with different diameters, it is necessary to repeatedly replace the equal-height blocks in order to obtain the machining center position at the same height. After adopting the bracket structure of this application, in the process of clamping the column, the auxiliary clamping and loading / unloading mechanism not only plays the role of assisting in loading and unloading materials, but also quickly clamps and fixes the column hoisted in place under the cooperation of the installation base clamping system. It is no longer necessary to precisely adjust to achieve the precise positioning of the centers of round steel with different diameters, ensuring the consistency of the positions of the centers of round steel with different diameters in the geometric space. With the cooperation of a fixed-position boring special machine, the production process of boring the centers of round steel with different sizes can be realized. The clamping process is relatively simple and the positioning is accurate. Especially in mass production, it is not necessary to adjust the auxiliary clamping and loading / unloading mechanism. Only through the left and right screw rods of the installation base clamping system and the cooperation of the auxiliary clamping and loading / unloading mechanism can the clamping and positioning functions be achieved simultaneously, which can significantly improve the clamping efficiency. Description of the Drawings

[0015] Figure 1 It is the front view of the bracket structure for boring the column of the tower crane standard section of the present utility model;

[0016] Figure 2 、 Figure 3 They are respectively Figure 1 the view from direction A and the view from direction B of

[0017] Figure 4 It is the partial detailed drawing of the installation of the adjustment component related to the bracket structure for boring the column of the tower crane standard section of the present utility model on the T-slot seat.

[0018] The marks in the figure are: column 1, support truss 2, ejector rod 3, ejector rod nut 4, V-block positioning seat 5, V-block 6, hydraulic push rod 7, T-slot seat 8, T-slot base 9, screw connection nut seat 10, left and right screw rods 11, screw connection nut 12, card slot 13, seat through hole 14, support bracket 15. Detailed Embodiment

[0019] As Figure 1 、 Figure 2, Figure 3 and Figure 4 Shown is a bracket structure for boring the column of the round steel standard section of a tower crane provided by the present utility model, which has a relatively simple clamping process and can significantly improve the clamping efficiency. The bracket structure includes a chassis, and is characterized in that: the bracket structure further includes an auxiliary clamping and loading / unloading mechanism and a mounting base clamping system, and the auxiliary clamping and loading / unloading mechanism is fixedly installed on the chassis through the mounting base clamping system; during the boring process, the column 1 to be machined is quickly arranged on the bracket structure and clamped and fixed through the cooperation of the auxiliary clamping and loading / unloading mechanism and the mounting base clamping system. The technical solution provided by this application is based on the existing chassis, and forms the bracket structure of this application by adding an auxiliary clamping and loading / unloading mechanism and a mounting base clamping system, and the auxiliary clamping and loading / unloading mechanism is fixedly installed on the chassis through the mounting base clamping system; in this way, during the boring process, the column to be machined is quickly arranged on the bracket structure and clamped and fixed through the cooperation of the auxiliary clamping and loading / unloading mechanism and the mounting base clamping system. It solves the technical problem in the prior art that when clamping the column with equal-height blocks, the operation is very inconvenient, and when clamping columns with different diameters, the equal-height blocks need to be repeatedly replaced in order to obtain the machining center position at the same height. After adopting the bracket structure of this application, in the process of clamping the column, the auxiliary clamping and loading / unloading mechanism not only plays the role of assisting in loading and unloading materials, but also quickly clamps and fixes the column hoisted in place through the cooperation of the mounting base clamping system. There is no need for precise adjustment to achieve the precise positioning of the centers of round steel with different sizes, ensuring the consistency of the positions of the centers of round steel with different diameters in the geometric space, and cooperating with the fixed-position boring special machine to realize the production process of boring the centers of round steel with different sizes. The clamping process is relatively simple and the positioning is accurate. Especially in mass production, there is no need to adjust the auxiliary clamping and loading / unloading mechanism. Only through the left and right screw rods of the mounting base clamping system and the cooperation of the auxiliary clamping and loading / unloading mechanism can the clamping and positioning functions be achieved simultaneously, which can significantly improve the clamping efficiency.

[0020] Correspondingly, in combination with the situation of the prior art, in order to improve the clamping quality, the chassis described in this application includes two support trusses 2 welded by profiled steel, and a clamping mechanism and an adjustment component are respectively arranged on each support truss 2 through the mounting base clamping system; during the boring process, both ends of the column 1 are clamped on the corresponding support truss 2 through two sets of auxiliary clamping and loading / unloading mechanisms in the cooperation of the corresponding mounting base clamping systems. The bracket structure of this application further includes at least one set of top support brackets 15, and the column 1 being processed maintains the extension of its axial center line in the horizontal direction through the top support brackets 15. At this time, the top support brackets 15 can also play an auxiliary supporting role during the loading and unloading process, achieving the purpose of facilitating clamping.

[0021] Furthermore, in order to improve the convenience of adjustment when the bracket structure of the present application clamps and processes columns with different diameters, the bracket structure of the present application further includes two sets of adjustment components. Each set of adjustment components respectively includes a jack 3 and a set of jack nuts 4. A set of jack nuts 4 is respectively installed at the geometric center of each set of installation base clamping systems along the horizontal plane. The jack 3 is rotatably connected to the corresponding jack nut 4 in a vertically liftable manner; during the boring process, the clamping height of the column 1 to be processed is adjusted by the corresponding jack 3 in cooperation with the corresponding jack nut 4. Correspondingly, as the key component of the improvement of the present application, in order to improve the operability of the bracket structure as much as possible, especially the operability in batch processing, the auxiliary clamping and loading / unloading mechanism of the present application includes a clamping mounting seat and an auxiliary clamping and loading / unloading component. The auxiliary clamping and loading / unloading component is arranged on the installation base clamping system in a manner adapted to the position of the corresponding adjustment component through the clamping mounting seat; during the boring process, the end of the column 1 is detachably fixed on the installation base clamping system through the cooperation of the auxiliary clamping and loading / unloading component, the clamping mounting seat and the adjustment component. The installation base clamping system of the present application includes a clamping adjustment component and an installation base. The jack nut 4 is arranged at the geometric center of the installation base along the horizontal plane. The clamping adjustment component is movably arranged on the installation base; during the boring process, the relative positions of the sets of V-block positioning seats 5 movably arranged on the installation base are adjusted by the clamping adjustment component to clamp the end of the column.

[0022] Meanwhile, for the convenience of manufacturing and subsequent use, the clamping mounting base described in this application is composed of two sets of V-block positioning seats 5, and the auxiliary clamping and loading / unloading assembly is composed of two V-blocks 6 and two sets of hydraulic push rods 7. A V-block 6 and a set of hydraulic push rods 7 are arranged on the corresponding V-block positioning seat 5 in a mutually adapted position, and the two sets of V-block positioning seats 5 are arranged on the mounting base clamping system in a mutually adapted phase. During the boring process, the end of the column 1 is detachably fixed on the mounting base clamping system through the cooperation of two V-blocks 6 and the two sets of mounting base clamping systems. After the boring is completed, the column is ejected from the support structure through the cooperation of each set of hydraulic push rods 7 and the corresponding V-block 6. The described mounting base includes a T-slot seat 8 and a T-slot base 9. The ejector nut 4 is fixedly installed on the T-slot seat 8, the T-slot seat 8 is movably arranged on the T-slot base 9, and the clamping adjustment assembly is movably arranged on the T-slot base 9. Each set of V-block positioning seats 5 arranged on the T-slot seat 8 adjusts their relative positions to each other through the cooperation of the clamping adjustment assembly and the T-slot seat 8. The described clamping adjustment assembly includes a left-right hand screw pair and a screwed nut seat 10. A screwed nut seat 10 is respectively installed on the bottom surface of each set of V-block positioning seats 5 extending out of the T-slot seat 8. The left and right hand screws 11 of the left-right hand screw pair are movably arranged on the T-slot base 9, and the two sets of screwed nuts 12 with opposite screw directions of the left-right hand screw pair are respectively arranged on the two screwed nut seats 10. The two sets of V-block positioning seats 5 adjust their relative positions to each other through the left and right hand screws 11 and the screwed nuts 12 with the cooperation of the screwed nut seats 10.

[0023] More specifically, the T-slot base 9 described in this application is composed of a box-shaped seat with an open top. A clamping groove 13 is also arranged at the geometric center inside the box-shaped seat, through holes 14 are provided on the side walls at both ends of the box-shaped seat, the middle part of the left and right hand screws 11 is supported in the clamping groove 13, and the two ends of the left and right hand screws 11 respectively pass through the through holes 14 and extend out of the box-shaped seat. The T-slot seat 8 is arranged on the open top of the box-shaped seat.

[0024] To sum up, the overall idea of the design of the support structure described in this application is

[0025] 1. The fixture, that is, the support structure itself, realizes the positioning function through the cooperation of the left and right hand screws and the V-blocks during normal operation, without the need for adjustment or fine-tuning. The adjustment assembly composed of the ejector rod and the ejector nut is only used to adjust the height of the machining center when processing columns with different diameters. During mass production, only by tightening the left and right hand screws can the two functions of clamping and positioning be completed through the cooperation of the V-blocks;

[0026] 2. The hydraulic strut pushes the V-block to rotate by a corresponding angle during loading and unloading to achieve loading and unloading;

[0027] 3. The entire positioning system functions with the V-block and the left and right screw rods simultaneously, and the effect is to keep the centers of round steel bars with different diameters unchanged in terms of geometric position.

[0028] Embodiment 1

[0029] Using the left and right screw rods and the auxiliary clamping device, taking advantage of the characteristics of the equal-distance movement of the left and right screw rod nuts to achieve automatic centering and clamping, and cooperating with the V-type clamping device, thus under the condition of using a fixed boring special machine, the technical goal of automatic centering clamping of round steel bars with different diameters is achieved. The design of the special clamping device reduces the working stroke of the screw rod and facilitates the loading and unloading of round steel. That is to say, in mass production, there is no need to adjust the positioning system or the auxiliary adjustment system. Only by rotating the left and right screw rods can the clamping and positioning functions be achieved simultaneously, which can significantly improve the clamping efficiency. The left and right screw rods can push the T-slot seat through the card slots during rotation to drive the V-block positioning seat to drive the V-block to achieve self-centering of the column. After processing, when unloading, rotate the left and right screw rods to loosen the V-block, and then activate the hydraulic push rod to drive the V-block to rotate and push the column away from the support structure to play an auxiliary role in discharging materials.

Claims

1. A support structure for boring holes in round steel standard section columns of tower cranes, including a base frame, characterized in that: The support structure also includes an auxiliary clamping and loading and unloading mechanism and a mounting base clamping system, wherein the auxiliary clamping and loading and unloading mechanism is fixedly mounted on the base frame through the mounting base clamping system; during the boring process, the column (1) to be processed is quickly arranged on the support structure and clamped and fixed through the auxiliary clamping and loading and unloading mechanism in cooperation with the mounting base clamping system.

2. The support structure for boring holes of round steel standard section columns of tower cranes according to claim 1 is characterized in that: The base frame comprises two support trusses (2) welded from steel sections, and each support truss (2) is provided with a set of auxiliary clamping and loading and unloading mechanisms respectively through a set of mounting base clamping systems; during the boring process, the two ends of the column (1) are clamped on the corresponding support trusses (2) respectively through the two sets of auxiliary clamping and loading and unloading mechanisms in cooperation with the corresponding mounting base clamping systems.

3. The support structure for boring holes of round steel standard section columns of tower cranes according to claim 2 is characterized in that: The support structure also includes two sets of adjustment components, each set of adjustment components includes a push rod (3) and a set of push rod nuts (4), and a set of push rod nuts (4) are installed at the geometric center of each installation base clamping system along the horizontal plane. The push rod (3) is screwed into the corresponding push rod nut (4) in a vertically movable manner. During the boring process, the clamping height of the column (1) to be processed is adjusted by the corresponding push rod (3) in cooperation with the corresponding push rod nut (4).

4. The support structure for boring holes of round steel standard section columns of tower cranes according to claim 1, 2 or 3, characterized in that: The auxiliary clamping and disassembling mechanism comprises a clamping mounting seat and an auxiliary clamping and disassembling assembly, wherein the auxiliary clamping and disassembling assembly is arranged on the mounting base clamping system in a manner adapted to the position of the clamping mounting seat and the corresponding adjusting assembly; during the boring process, the end of the column (1) is detachably fixed on the mounting base clamping system through the auxiliary clamping and disassembling assembly in cooperation with the clamping mounting seat and the adjusting assembly.

5. The support structure for boring holes of round steel standard section columns of tower cranes according to claim 4 is characterized in that: The clamping mounting seat is composed of two sets of V-block positioning seats (5), and the auxiliary clamping and disassembling components are composed of two V-blocks (6) and two sets of hydraulic push rods (7). One V-block (6) and one set of hydraulic push rods (7) are arranged on the corresponding V-block positioning seat (5) in a mutually adaptive manner, and the two sets of V-block positioning seats (5) are arranged on the mounting base clamping system in a mutually adaptive manner. During the boring process, the end of the column (1) is detachably fixed on the mounting base clamping system through the two V-blocks (6) in cooperation with the two sets of mounting base clamping systems; the column after boring is ejected out of the bracket structure through each set of hydraulic push rods (7) in cooperation with the corresponding V-block (6).

6. The support structure for boring holes of round steel standard section columns of tower cranes according to claim 5 is characterized in that: The mounting base clamping system comprises a clamping adjustment component and a mounting base, a push rod nut (4) is arranged at the geometric center of the mounting base along a horizontal plane, and the clamping adjustment component is movably arranged on the mounting base; during the boring process, each set of V-block positioning seats (5) movably arranged on the mounting base adjusts their relative positions to each other through the clamping adjustment component and clamps the end of the column.

7. The support structure for boring holes of round steel standard section columns of tower cranes according to claim 6 is characterized in that: The mounting base comprises a T-slot seat (8) and a T-slot base (9), a push rod nut (4) is fixedly mounted on the T-slot seat (8), the T-slot seat (8) is movably arranged on the T-slot base (9), a clamping adjustment assembly is movably arranged on the T-slot base (9), and the relative positions of the various sets of V-block positioning seats (5) arranged on the T-slot seat (8) are adjusted with the cooperation of the T-slot seat (8) through the clamping adjustment assembly.

8. The support structure for boring holes of round steel standard section columns of tower cranes according to claim 7 is characterized in that: The clamping adjustment assembly comprises a left-right rotating bolt pair and a rotating nut seat (10). A rotating nut seat (10) is respectively installed on the bottom surface of each set of V-block positioning seats (5) extending out of the T-slot seat (8). The left-right rotating screw rods (11) of the left-right rotating bolt pair are movably arranged on the T-slot base (9). Two sets of rotating nuts (12) with opposite rotation directions of the left-right rotating bolt pair are respectively arranged on the two rotating nut seats (10). The two sets of V-block positioning seats (5) adjust their relative positions to each other through the left-right rotating screw rods (11) and the rotating nuts (12) in cooperation with the rotating nut seats (10).

9. The support structure for boring holes of round steel standard section columns of tower cranes according to claim 8, characterized in that: The T-slot base (9) is composed of a box-shaped seat with an open top. A slot (13) is arranged at the geometric center of the box-shaped seat. Through holes (14) are arranged on the side walls at both ends of the box-shaped seat. The middle of the left and right screw rods (11) are supported in the slot (13). The two ends of the left and right screw rods (11) pass through the box-shaped seat along the through holes (14) respectively. The T-slot seat (8) is arranged on the open top of the box-shaped seat.

10. The support structure for boring holes of round steel standard section columns of tower cranes according to claim 9, characterized in that: The support structure also includes at least one group of top support brackets (15), and the column (1) being processed is kept with its axial center line extending in the horizontal direction through the top support brackets (15).

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