Pull rod mounting structure of tower type pouring equipment

Abstract

The utility model belongs to the field of mass concrete pouring construction equipment, and particularly provides a tower type pouring equipment pull rod installation structure which comprises a cargo boom and a balance arm which are arranged on the two sides of a tower crane rotary rack, a supporting frame body is arranged on the tower crane rotary rack, and the upper end of the supporting frame body is connected with an inner upper pull rod and an inner lower pull rod. The lower end of the inner support is connected with the cargo boom, the upper end of the inner support is connected with the lower end of the inner upper pull rod and the upper end of the outer pull rod, and the lower end of the outer pull rod is connected with the cargo boom; the supporting frame body is connected with the balance arm through a balance arm pull rod. Through the mounting structure, a connecting mechanism of the tower crane cargo boom and the balance arm with the tower body is optimized, and the stability and the strength are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mass concrete pouring construction equipment, particularly relates to a tower type pouring equipment pull rod mounting structure. BACKGROUND

[0002] At present, in large water conservancy and hydropower engineering, the powerhouse and flood discharge gate of the dam type hydropower station are mostly located in the lower reaches of the river bed with wide and shallow riverbed, the dam section width is mostly 30-40 meters, the width along the water flow direction reaches 80-90 meters, and the thickness of the bottom mass concrete is generally about 20 meters. The dam type hydropower station generally adopts the staged diversion mode, and the river bed type power station powerhouse and flood discharge gate are constructed in stages. In order to meet the requirements of flood control during the flood season, the bottom mass concrete structure is poured and completed in a dry season, and the concrete pouring lasts for a short time and has high strength. The construction period is quite tight, and the tower belt machine, top belt machine and mobile distributor are generally used for lifting and pouring.

[0003] For the tower belt machine, the lifting of the distributor belt is required, and the pouring position, angle and length of the distributor belt are changed. The distributor belt includes an inner distributor belt and an outer distributor belt, and the total length of the inner distributor belt and the outer distributor belt reaches 100m. The distributor belt is used to convey concrete to the pouring position, so that higher requirements are put forward for the lifting capacity and stability of the tower crane. The pull rod on the lifting arm and the balance arm of the tower crane is an important stressed member of the tower crane, and plays a crucial role in the stable operation of the tower crane. Personnel casualties caused by the fracture of the pull rod often occur during construction, and the reason is that the pull rod structure design on the existing tower crane is unreasonable, resulting in low safety performance and high accident rate. For the tower belt machine, especially the tower crane with a lifting arm span of about 90m and a counterweight arm of more than 40m, the pull rod structure needs to be optimized. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a tower type pouring equipment pull rod mounting structure, which optimizes the connecting mechanism of the lifting arm and the balance arm of the tower crane and the tower body, and improves the stability and strength.

[0005] In order to solve the above technical problems, the utility model adopts the technical scheme of a tower type pouring equipment pull rod mounting structure, which comprises a lifting arm and a balance arm arranged on both sides of a tower crane rotary platform, a support frame body is arranged on the tower crane rotary platform, an inner upper pull rod and an inner lower pull rod are connected to the upper end of the support frame body, the lower end of the inner lower pull rod is connected to the lifting arm, the lower end of the inner support is connected to the lifting arm, the upper end is connected to the lower end of the inner upper pull rod and the upper end of the outer pull rod, and the lower end of the outer pull rod is connected to the lifting arm; the support frame body is connected to the balance arm through the balance arm pull rod.

[0006] In the preferred scheme, the lower end of the inner lower pull rod is arranged between the inner support and the support frame body.

[0007] In the preferred solution, the balance arm pull rod comprises two groups of connecting pull rods, which are arranged on the two sides of the balance arm respectively.

[0008] In the preferred solution, at least one group of transverse connecting rods is arranged between the two groups of connecting pull rods.

[0009] In the preferred solution, the inner upper pull rod, the inner lower pull rod and the connecting pull rod each comprise a plurality of groups of unit pull rods, and adjacent unit pull rods are hingedly connected.

[0010] In the preferred solution, a plurality of U-shaped clamping seats are arranged on the upper side of the inner lower pull rod, and the U-shaped clamping seats are used for limiting the inner upper pull rod during installation.

[0011] In the preferred solution, the inner support is an A-shaped frame body, and an installation plate is arranged at the upper end of the inner support, and the inner upper pull rod and the outer pull rod are hingedly connected to the installation plate.

[0012] In the preferred solution, the A-shaped frame body comprises two groups of inclined rods, the upper ends of the two groups of inclined rods are connected, and a transverse rod is arranged between the two groups of inclined rods.

[0013] In the preferred solution, the lower end of the inclined rod is hingedly connected to the lower part of the hoisting arm.

[0014] The tower pouring equipment pull rod mounting structure provided by the utility model has the following beneficial effects:

[0015] 1. By arranging the support frame body on the tower machine rotary rack, and constructing a stable connection system by using the inner upper pull rod, the inner lower pull rod, the inner support, the outer pull rod and the balance arm pull rod, the force borne by the hoisting arm and the balance arm of the tower machine during operation can be effectively dispersed, so that the overall force borne by the tower machine is more uniform and reasonable.

[0016] 2. The connection mode of the inner support, the hoisting arm, the inner upper pull rod and the outer pull rod enhances the support structure of the hoisting arm, reduces the shaking and deformation of the hoisting arm during hoisting of heavy objects, thereby significantly improving the stability of the tower machine and reducing the risk of safety accidents caused by unstable structure.

[0017] 3. The inner upper pull rod, the inner lower pull rod and the connecting pull rod are designed to be hingedly connected by a plurality of groups of unit pull rods, which not only facilitates installation and adjustment, but also can be deformed flexibly according to the actual force condition, thereby effectively improving the overall strength and carrying capacity of the pull rod.

[0018] 4. The balance arm pull rod comprises two groups of connecting pull rods, and a transverse connecting rod is additionally arranged therebetween, thereby further enhancing the connection strength between the balance arm and the support frame body, and ensuring that each component of the tower machine can work stably and reliably during heavy load operation.

[0019] 5、The "U" type card mounting seat arranged on the inner upper pull rod can precisely limit the inner upper pull rod during hoisting operation, avoids displacement or shaking of the inner upper pull rod during hoisting, improves the accuracy and safety of hoisting operation, and improves the construction efficiency.

[0020] 6、The pull rod mounting structure is specially designed according to the characteristics of large span (about 90m) of the hoisting arm of the tower belt machine and long length (more than 40m) of the counterweight arm, can well adapt to the complex working conditions, meets the needs of the hoisting and angle adjustment operation of the distributor during large volume concrete pouring construction, and guarantees the smooth construction. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further described in connection with the drawings and embodiments:

[0022] Figure 1 It is the whole structure schematic diagram of the utility model;

[0023] Figure 2 It is the mounting structure schematic diagram of the hoisting arm;

[0024] Figure 3 It is Figure 2 The enlarged view of A in the middle;

[0025] Figure 4 It is Figure 2 The enlarged view of B in the middle;

[0026] Figure 5 It is the mounting structure schematic diagram of the "U" type card mounting seat;

[0027] Figure 6 It is the structure schematic diagram of the inner support;

[0028] Figure 7 It is the mounting structure schematic diagram of the balance arm;

[0029] Figure 8 It is the structure schematic diagram of the balance arm pull rod;

[0030] Figure 9 It is Figure 7 The enlarged structure schematic diagram of A in the middle;

[0031] Figure 10 It is the cross section structure schematic diagram of the hoisting arm or balance arm;

[0032] In the figure: tower machine rotary stand 100, hoisting arm 200, balance arm 300, support frame body 400, first connecting lug plate 410, second connecting lug plate 420, inner upper pull rod 500, inner lower pull rod 600, "U" type clamping seat 610, inner support 700, mounting plate 710, inclined rod 720, cross rod 730, outer pull rod 800, balance arm pull rod 900, connecting pull rod 910, transverse connecting rod 920. DETAILED DESCRIPTION

[0033] Embodiment 1

[0034] As shown in Figures 1-2 and Figure 7 , a tower crane pull rod mounting structure, comprising hoisting arm 200 and balance arm 300 arranged on both sides of tower machine rotary stand 100, hoisting arm 200 and balance arm 300 are both truss structures.

[0035] Tower machine rotary stand 100 is provided with support frame body 400, in this embodiment, support frame body 400 is A-shaped frame, support frame body 400 upper end connects inner upper pull rod 500 and inner lower pull rod 600, inner lower pull rod 600 lower end connects with hoisting arm 200, inner support 700 lower end connects with hoisting arm 200, upper end connects with inner upper pull rod 500 lower end and outer pull rod 800 upper end, outer pull rod 800 lower end connects with hoisting arm 200; inner support 700 lower end connecting point with hoisting arm 200 is located between inner lower pull rod 600 connecting point with hoisting arm 200 and outer pull rod 800 connecting point with hoisting arm 200, that is, inner lower pull rod 600 lower end is arranged between inner support 700 and support frame body 400.

[0036] Support frame body 400 is connected with balance arm 300 through balance arm pull rod 900, balance arm pull rod 900 is inclined pull rod.

[0037] As shown in Figure 1 and Figure 3 , the support frame body 400 top is provided with first connecting lug plate 410, one side is provided with second connecting lug plate 420, inner upper pull rod 500 and inner lower pull rod 600 are hinged with first connecting lug plate 410, balance arm pull rod 900 is hinged with second connecting lug plate 420.

[0038] Due to the large span of the hoisting arm 200, the structure connected by a single pull rod can only form a single-point connection, which has low stability. By using the inner lower pull rod 600 and the outer pull rod 800 to form two-point connection along the length direction of the hoisting arm 200, the connection stability is improved. At the same time, due to the long length of the hoisting arm 200, the lifting point connected with the tail section of the hoisting arm 200, i.e. the connection point of the outer pull rod 800 and the hoisting arm, is far from the top of the outer pull rod 800. Therefore, a segmented structure is used instead of a single lifting rod structure, and the lower end of the inner upper pull rod 500 and the upper end of the outer pull rod 800 are connected with the upper end of the inner support 700. The inner support 700 forms a support for the tension rod structure, enhances the support structure of the hoisting arm, reduces the shaking and deformation of the hoisting arm when lifting heavy objects, and thus significantly improves the stability of the tower crane.

[0039] Embodiment 2:

[0040] Different from embodiment 1, in the present embodiment, as shown in Figure 10 , the hoisting arm 200 and the balance arm 300 are triangular truss structures, including three groups of triangularly distributed support rods, two groups of which are located at the bottom and the other group of which is located at the top, and the support rods are connected by connecting frames.

[0041] This structure design fully utilizes the stability principle of triangle, so that the hoisting arm 200 and the balance arm 300 have good mechanical properties and can withstand greater lateral force and vertical force. Compared with the traditional hoisting arm structure, under the same material and size conditions, the load-carrying capacity of the hoisting arm 200 and the balance arm 300 of the present application is significantly improved, which can meet the hoisting demand of large-span and large-weight cloth belt and adapt to high-strength concrete pouring operation.

[0042] As shown in Figure 8 , the balance arm pull rod 900 includes two groups of connecting pull rods 910, which are respectively arranged on both sides of the balance arm 300. Specifically, the lower end of the connecting pull rod 910 is connected with the support rod at the bottom.

[0043] At least one group of transverse connecting rods 920 is arranged between the two groups of connecting pull rods 910. In the present embodiment, two groups of transverse connecting rods 920 are arranged, which are respectively arranged at the upper end and the middle of the connecting pull rod 910.

[0044] By arranging two groups of connecting pull rods 910, the support strength of the balance arm pull rod 900 can be improved. At the same time, the connecting pull rod 910 is connected with the bottom of the balance arm 300, and two groups of connecting points are arranged, which can improve the connection strength with the balance arm 300.

[0045] Preferably, the inner upper pull rod 500, the inner lower pull rod 600 and the connecting pull rod 910 each include a plurality of unit pull rods, as shown in Figure 9 , adjacent unit connecting rods are hingedly connected.

[0046] By setting up multiple sets of unit connecting rods, it is convenient to fold the rods during hoisting and installation. On the other hand, the segmented rods ensure that the physical properties of the rods meet the requirements of load and wind load, resulting in high reliability and enhancing the safety performance of the tower crane, thereby protecting the personal safety of the operators.

[0047] Example 3:

[0048] Unlike Example 2, such as Figure 2 and Figure 5 As shown, the inner pull rod 600 is provided with several "U"-shaped mounting seats 610 on its upper side. The "U"-shaped mounting seats 610 are used to limit the inner upper pull rod 500 during hoisting operations.

[0049] During installation, the boom 200 is installed in sections, and the outer tie rod 800 is set on the tail section of the boom 200. Before the outer tie rod 800 is installed, the inner support 700 and the inner upper tie rod 500 are not tightened. Therefore, several unit connecting rods of the inner upper tie rod 500 are clamped in the "U"-shaped clamping seat 610 to limit the inner upper tie rod 500 and prevent it from swinging randomly in the untightened state.

[0050] Preferred, such as Figure 6 As shown, the inner support 700 is an "A" shaped frame, and the upper end of the inner support 700 is provided with a mounting plate 710. The ends of the inner upper tie rod 500 and the outer tie rod 800 are hinged to the mounting plate 710.

[0051] The “A”-shaped frame includes two sets of diagonal braces 720, the upper ends of the two sets of diagonal braces 720 are connected, a crossbar 730 is set between the two sets of diagonal braces 720, and the lower end of the diagonal braces 720 is hinged to the lower part of the lifting arm 200.

[0052] The inner support 700 is set as an "A" shaped frame, which facilitates its adaptation and connection with the triangular truss structure of the crane boom 200, and the structure is set as smaller at the top and larger at the bottom to improve the support stability of the inner support 700.

[0053] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The embodiments and features described in this application can be arbitrarily combined without conflict. The protection scope of this utility model should be defined as the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A tower crane boom mounting structure comprising a tower crane slewing base (100), a jib boom (200) and a balance boom (300) arranged on both sides of the slewing base (100), characterized in that, The tower crane slewing frame (100) is provided with a support frame body (400), the upper end of the support frame body (400) is connected with an inner upper pull rod (500) and an inner lower pull rod (600), the lower end of the inner lower pull rod (600) is connected with a hoist arm (200), the lower end of an inner support (700) is connected with the hoist arm (200), the upper end of the inner support (700) is connected with the lower end of the inner upper pull rod (500) and the upper end of an outer pull rod (800), the lower end of the outer pull rod (800) is connected with the hoist arm (200); the support frame body (400) is connected with a balance arm (300) through a balance arm pull rod (900).

2. A tower casting plant tie rod mounting structure according to claim 1, wherein The lower end of the inner lower pull rod (600) is arranged between the inner support (700) and the support frame body (400).

3. A tower casting plant tie rod mounting structure according to claim 1, wherein The balance arm pull rod (900) comprises two groups of connecting pull rods (910), and the connecting pull rods (910) are arranged on the two sides of the balance arm (300) respectively.

4. A tower casting plant tie rod mounting structure according to claim 3, wherein At least one group of transverse connecting rods (920) is arranged between the two groups of connecting pull rods (910).

5. A tower casting plant tie rod mounting structure according to claim 3, wherein The inner upper pull rod (500), the inner lower pull rod (600) and the connecting pull rod (910) each comprise a plurality of unit pull rods, and adjacent unit connecting rods are hingedly connected.

6. A tower casting plant tie rod mounting structure according to claim 5, wherein A plurality of "U"-shaped clamping seats (610) are arranged on the upper side of the inner lower pull rod (600), and the "U"-shaped clamping seats (610) are used for limiting the inner upper pull rod (500) during installation.

7. A tower casting plant tie rod mounting structure according to claim 1 wherein, The inner support (700) is an "A"-shaped frame body, the upper end of the inner support (700) is provided with a mounting plate (710), and the end portions of the inner upper pull rod (500) and the outer pull rod (800) are hingedly connected with the mounting plate (710).

8. A tower casting plant tie rod mounting structure according to claim 7, characterised in that, The "A"-shaped frame body comprises two groups of inclined rods (720), the upper ends of the two groups of inclined rods (720) are connected, and a cross rod (730) is arranged between the two groups of inclined rods (720).

9. A tower casting plant tie rod mounting structure according to claim 8, wherein The lower end of the inclined rod (720) is hingedly connected with the lower part of the hoist arm (200).

10. A tower casting plant tie rod mounting structure according to claim 1, wherein The top of the support frame body (400) is provided with a first connecting ear plate (410), one side is provided with a second connecting ear plate (420), the inner upper pull rod (500) and the inner lower pull rod (600) are hingedly connected with the first connecting ear plate (410), and the balance arm pull rod (900) is hingedly connected with the second connecting ear plate (420).

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