Tower type pouring equipment cargo boom

Abstract

The utility model belongs to the field of tower crane equipment, and particularly provides a tower type pouring equipment cargo boom which comprises a cargo boom body arranged on one side of a tower crane rotary rack, a supporting frame is arranged on the tower crane rotary rack, the upper end of the supporting frame is connected with an inner upper pull rod and an inner lower pull rod, the lower end of the inner lower pull rod is connected with the cargo boom body, and the lower end of an inner support is connected with the cargo boom body. 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. According to the tower belt crane cargo boom, the stability and the strength of the cargo boom are improved by optimizing the pull rod structure of the cargo boom.

Description

TECHNICAL FIELD

[0001] The utility model relates to tower belt conveyor equipment field, especially a tower type pouring equipment hoist arm. BACKGROUND

[0002] At present, in large water conservancy and hydropower engineering, in order to meet the flood season flood control requirement, basically in a dry season, both the foundation pit excavation and the bottom mass concrete pouring are completed, and the concrete pouring is short and high in strength. The construction period is quite nervous, and generally adopts tower belt conveyor, top belt conveyor, mobile distributor and other equipment to hoist and pour.

[0003] For the tower belt conveyor, including tower crane (tower machine) and distributor belt conveyor, the tower crane needs to hoist the distributor belt, changes the pouring position, angle and length of the distributor belt, the distributor belt includes inner distributor belt and outer distributor belt, and the total length of the inner distributor belt and the outer distributor belt reaches 100m, which is used to convey concrete to the pouring position, so that higher requirements are put forward to the hoisting capacity and stability of the tower machine. The hoist arm span of the tower belt conveyor reaches about 90m, and the length is relatively long, so that the lateral bearing capacity needs to be borne, therefore, the structure of the hoist arm needs to be optimized and designed to prevent the pull rod from breaking, improve the rigidity and stability and ensure the stable operation of the tower belt conveyor. SUMMARY

[0004] The utility model solves the technical problem that a tower type pouring equipment hoist arm is provided, the pull rod structure of the hoist arm is optimized, and the stability and strength of the hoist arm are improved.

[0005] In order to solve the above technical problems, the utility model adopts the technical scheme of a tower type pouring equipment hoist arm, which comprises a hoist arm arranged on one side of a tower machine rotary table frame, a support frame is arranged on the tower machine rotary table frame, an inner upper pull rod and an inner lower pull rod are connected to the upper end of the support frame, the lower end of the inner lower pull rod is connected to the hoist arm, an inner support is connected to the lower end of the hoist arm, the upper end of the inner support is connected to the lower end of the inner upper pull rod and the upper end of an outer pull rod, and the lower end of the outer pull rod is connected to the hoist arm.

[0006] In the preferred scheme, the hoist arm is a truss structure, comprising two groups of bottom support rods and a group of top support rods, the two groups of bottom support rods and the group of top support rods are arranged in a triangular shape, the two groups of bottom support rods are connected by a connecting cross bar, and the bottom support rods and the top support rods are connected by a plurality of "eight" shaped pull rods.

[0007] In the preferred scheme, a plurality of limiting U-shaped frames are arranged on the top of the hoist arm along the length direction of the hoist arm, which are used for limiting the outer pull rod during installation.

[0008] In the preferred scheme, the lower end of the inner lower pull rod is arranged between the inner support and the support frame.

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

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

[0011] In a preferred embodiment, the inner support is an A-shaped frame body, the A-shaped frame body is provided with a mounting plate at the upper end, and the inner upper pull rod and the outer pull rod are hingedly connected to the mounting plate.

[0012] In a preferred embodiment, 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 cross rod is arranged between the two groups of inclined rods.

[0013] In a preferred embodiment, the lower end of the inner support is hingedly connected to the lower part of the hoisting arm.

[0014] In a preferred embodiment, the support frame is provided with a connecting lug plate at the upper end, and the inner upper pull rod and the inner lower pull rod are hingedly connected to the connecting lug plate.

[0015] The tower type pouring equipment hoisting arm provided by the utility model has the following beneficial effects:

[0016] 1. The support frame on the tower machine rotary table is connected with the inner upper pull rod, the inner lower pull rod, the inner support and the outer pull rod, forming a stable support system. The plurality of pull rods and the support are matched with each other, effectively dispersing the load borne by the hoisting arm, greatly improving the stability of the hoisting arm, reducing the risk of shaking or deformation in the concrete pouring operation process, and ensuring the stable operation of the tower belt machine.

[0017] 2. The hoisting arm adopts a truss structure, and is arranged in a triangular shape by two groups of bottom support rods and one group of top support rods, and is matched with a connecting cross rod and an "eight" shaped pull rod. This structure design fully utilizes the stability principle of the triangle, so that the hoisting arm has good mechanical properties and can bear greater lateral force and vertical force. Compared with the traditional hoisting arm structure, under the same material and size conditions, the load bearing capacity of the hoisting arm of the utility model is significantly improved, can meet the hoisting demand of large-span and large-weight distribution belts, and is suitable for high-strength concrete pouring operation.

[0018] 3. The limiting U-shaped frame arranged at the top of the hoisting arm is used for horizontally clamping the outer pull rod in the limiting U-shaped frame by rotating the outer pull rod when the outer pull rod upper end is not connected with the inner support, so that the hoisting arm is conveniently hoisted, the outer pull rod is synchronously hoisted, and the outer pull rod is prevented from swinging during hoisting.

[0019] 4. The inner upper pull rod and the inner lower pull rod are each formed by hingedly connecting a plurality of unit pull rods, are convenient to install and adjust, can be flexibly deformed according to the actual stress condition, and effectively improve the strength and load bearing capacity of the pull rod as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the installation structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0025] Figure 5 for Figure 2 Enlarged view of point C in the middle;

[0026] Figure 6 This is a schematic diagram of the installation structure of the U-shaped limit bracket;

[0027] Figure 7 A schematic diagram of the U-shaped mounting bracket;

[0028] Figure 8 This is a schematic diagram of the internal support structure;

[0029] In the diagram: Tower crane slewing platform 100, boom 200, support frame 300, inner upper tie rod 400, inner lower tie rod 500, inner support 600, outer tie rod 700, bottom support rod 210, top support rod 220, connecting crossbar 230, figure-eight tie rod 240, limit U-shaped frame 250, connecting ear plate 310, U-shaped clamping seat 510, mounting plate 610, diagonal bar 620, crossbar 630, unit tie rod 001. Detailed Implementation

[0030] Example 1:

[0031] like Figures 1-2 As shown, a tower-type concrete pouring equipment lifting boom includes a lifting boom 200 disposed on one side of the tower crane slewing platform 100. The lifting boom 200 is a truss structure and is connected to the tower crane slewing platform 100 by bolts. The lifting boom 200 adopts a multi-section structure, and the sections are connected by bolts.

[0032] The tower crane rotary table 100 is provided with a support frame 300. In the embodiment, the support frame 300 is an A-shaped frame. The upper end of the support frame 300 is connected with an inner upper pull rod 400 and an inner lower pull rod 500. The lower end of the inner lower pull rod 500 is hingedly connected with the hoisting arm 200. The lower end of an inner support 600 is hingedly connected with the hoisting arm 200. The upper end of the inner support 600 is hingedly connected with the lower end of the inner upper pull rod 400 and the upper end of an outer pull rod 700. The lower end of the outer pull rod 700 is hingedly connected with the hoisting arm 200.

[0033] The lower end of the inner lower pull rod 500 is arranged between the inner support 600 and the support frame 300 and is hingedly connected with the upper side of the support frame 300.

[0034] Preferably, as shown in Figure 3 The upper end of the support frame 300 is provided with a connecting lug plate 310. The inner upper pull rod 400 and the inner lower pull rod 500 are hingedly connected with the connecting lug plate 310.

[0035] Preferably, as shown in Figure 4 The inner upper pull rod 400 and the inner lower pull rod 500 each include a plurality of unit pull rods 001. Adjacent unit pull rods 001 are hingedly connected.

[0036] By arranging the plurality of unit pull rods 001, on the one hand, the folding of the pull rod is facilitated during hoisting and installation. On the other hand, the arrangement of the segmented pull rod ensures that the physical performance of the rod meets the requirements of load and wind load, has high reliability, enhances the safety performance of the tower crane, and thus protects the personal safety of the operator.

[0037] Since the hoisting arm 200 has a large span, a 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 500 and the outer pull rod 700 to form a two-point connection along the length direction of the hoisting arm 200, the connection stability is improved. At the same time, since the hoisting arm 200 has a long length, the hoisting point connected with the tail section of the hoisting arm 200, i.e., the connection point of the outer pull rod 700 and the hoisting arm, is far from the top of the outer pull rod 700. Therefore, a segmented structure is used instead of a single hoisting rod structure. The lower end of the inner upper pull rod 400 and the upper end of the outer pull rod 700 are connected with the upper end of the inner support 600. The inner support 600 forms a support for the pull rod structure, enhances the support structure of the hoisting arm, reduces the shaking and deformation of the hoisting arm during hoisting of heavy objects, and thus significantly improves the stability of the tower crane.

[0038] Embodiment 2:

[0039] Different from embodiment 1, as shown in Figure 2 and 6As shown, the lifting arm 200 is a truss structure, including two groups of bottom support rods 210 and a group of top support rods 220, the two groups of bottom support rods 210 and the group of top support rods 220 are arranged in a triangular shape, the two groups of bottom support rods 210 are connected by a connecting cross bar 230, and the bottom support rods 210 and the top support rods 220 are connected by a plurality of "eight" shaped pull rods 240.

[0040] The lifting arm 200 adopts a truss structure, two groups of bottom support rods 210 and a group of top support rods 220 are arranged in a triangular shape, and are matched with a connecting cross bar 230 and an "eight" shaped pull rod 240. This structure design fully utilizes the stability principle of the triangular shape, so that the lifting arm has good mechanical properties and can withstand greater lateral force and vertical force. Compared with the traditional lifting arm structure, under the same material and size conditions, the load carrying capacity of the lifting arm of the utility model is significantly improved, which can meet the hoisting needs of large-span and large-weight cloth belts and adapt to high-strength concrete pouring operations.

[0041] Preferably, a plurality of limiting U-shaped frames 250 are distributed along the length direction of the top of the lifting arm 200, which are used for limiting the installation of the outer pull rod 700.

[0042] Since the lifting arm 200 is divided into sections and is hoisted in sections, when the section of the lifting arm 200 where the outer pull rod 700 is located is hoisted, the upper end of the outer pull rod 700 is not connected with the inner support 600, the outer pull rod 700 is rotated, the outer pull rod 700 is horizontally clamped in the limiting U-shaped frame 250, which facilitates the synchronous hoisting of the outer pull rod 700 when the lifting arm 200 is hoisted, and prevents the outer pull rod 700 from swinging during hoisting.

[0043] Preferably, as shown in Figure 2 and 7 The upper side of the inner lower pull rod 500 is provided with a plurality of U-shaped clamping seats 510, which are used for limiting the installation of the inner upper pull rod 400.

[0044] During installation, the lifting arm 200 is installed in sections, the outer pull rod 700 is arranged on the tail section of the lifting arm 200, and when the outer pull rod 700 is not installed, the inner support 600 and the inner upper pull rod 400 are in a non-tensioned state, therefore, a plurality of unit pull rods of the inner upper pull rod 400 are clamped in the U-shaped clamping seat 510, which limits the inner upper pull rod 400 and prevents it from swinging randomly in a non-tensioned state.

[0045] Example 3:

[0046] Different from example 1, as shown in Figure 5 and Figure 8As shown, the inner support 600 is an A-shaped frame body, the upper end of the A-shaped frame body is provided with a mounting plate 610, and the inner upper pull rod 400 and the outer pull rod 700 are hinged to the mounting plate 610. The "A" shaped frame body comprises two groups of inclined rods 620, the upper ends of the two groups of inclined rods 620 are connected, and a cross rod 630 is arranged between the two groups of inclined rods 620.

[0047] The inner support 600 is arranged as an A-shaped frame body, on the one hand, the A-shaped frame body is convenient to adapt and connect with the triangular truss structure of the hoisting arm 200, and on the other hand, the A-shaped frame body is arranged as a structure that is small at the upper end and large at the lower end, so that the support stability of the inner support 600 is improved.

[0048] The above-mentioned embodiments are only preferred technical solutions of the utility model, and should not be regarded as the limitation of the utility model, the embodiments in the application and the features in the embodiments can be combined with each other in the case of no conflict. The protection scope of the utility model should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims as the protection scope. That is, the equivalent replacement improvement in this range is also within the protection scope of the utility model.

Claims

1. A tower crane jib comprising a jib (200) arranged on one side of a tower crane slewing platform (100), characterized in that The tower crane slewing frame (100) is provided with a support frame (300), the upper end of the support frame (300) is connected with an inner upper pull rod (400) and an inner lower pull rod (500), the lower end of the inner lower pull rod (500) is connected with the hoist arm (200), the lower end of an inner support (600) is connected with the hoist arm (200), the upper end of the inner support (600) is connected with the lower end of the inner upper pull rod (400) and the upper end of an outer pull rod (700), and the lower end of the outer pull rod (700) is connected with the hoist arm (200).

2. A tower casting plant jib according to claim 1, characterised in that The hoist arm (200) is of a truss structure, comprising two groups of bottom support rods (210) and one group of top support rods (220), the two groups of bottom support rods (210) and the one group of top support rods (220) are arranged in a triangular shape, the two groups of bottom support rods (210) are connected through a connecting cross rod (230), and the bottom support rods (210) and the top support rods (220) are connected through a plurality of "8"-shaped pull rods (240).

3. A tower casting plant jib according to claim 2, characterised in that, The top of the hoist arm (200) is provided with a plurality of limiting U-shaped frames (250) along the length direction of the hoist arm (200) for limiting the outer pull rod (700) during installation.

4. A tower casting plant jib according to claim 1, characterised in that, The lower end of the inner lower pull rod (500) is arranged between the inner support (600) and the support frame (300).

5. A tower casting plant jib according to claim 1, characterised in that, The inner upper pull rod (400) and the inner lower pull rod (500) each comprise a plurality of unit pull rods (001), and adjacent unit pull rods (001) are hingedly connected.

6. A tower casting plant jib according to claim 5, characterised in that, The upper side of the inner lower pull rod (500) is provided with a plurality of U-shaped clamping seats (510) for limiting the inner upper pull rod (400) during installation.

7. A tower casting plant jib according to claim 1, characterised in that, The inner support (600) is an A-shaped frame body, the upper end of the A-shaped frame body is provided with a mounting plate (610), and the ends of the inner upper pull rod (400) and the outer pull rod (700) are hingedly connected with the mounting plate (610).

8. A tower casting plant jib according to claim 7, characterised in that, The A-shaped frame body comprises two groups of inclined rods (620), the upper ends of the two groups of inclined rods (620) are connected, and a cross rod (630) is arranged between the two groups of inclined rods (620).

9. A tower casting plant jib according to claim 8, characterised in that, The lower end of the inner support (600) is hingedly connected with the lower part of the hoist arm (200).

10. A tower casting plant jib according to claim 1, characterised in that, The upper end of the support frame (300) is provided with a connecting lug plate (310), and the inner upper pull rod (400) and the inner lower pull rod (500) are hingedly connected with the connecting lug plate (310).

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