Grain silo upside-down construction lifting device

Abstract

The utility model discloses a grain silo upside-down construction lifting device. The grain silo upside-down construction lifting device comprises a vertical frame, a lifting hoist, a pull rod and a supporting rod. A grain silo to be constructed is fixed to the base, the base is located on the supporting ground, and the vertical frame is fixed to the base. The lifting hoist is fixed to the vertical frame, and one end of a lifting inhaul cable of the lifting hoist is connected with a lug plate on the side wall of the silo. One end of the pull rod is connected with the top end of the vertical frame; one end of the supporting rod is hinged to the bottom of the pull rod, and the other end of the supporting rod is in top support contact with the side wall of the base. Compared with a traditional lifting device, a concrete balancing weight is omitted, the inclined supporting rod piece and the horizontal supporting rod piece are additionally arranged, the stability of the lifting support is guaranteed, the concrete balancing weight is omitted, the manufacturing and maintenance period of the concrete balancing weight is shortened, and the cost of concrete materials is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting devices, and particularly relates to a lifting device for the inverted construction of grain silos. Background Art

[0002] A silo is a large storage facility for storing bulk materials such as grains and cereals. Due to its own structural characteristics, it is also widely used in the storage work of many other industries.

[0003] With the development of storage material requirements, the demand for building silo structures for storing resources such as grains, cement, and coal is increasing day by day. How to improve construction efficiency, further save costs, and quickly build silo structures that meet the use requirements is also an urgent research topic at present.

[0004] Reference Figure 1 As shown, the volume of the project silo body is 5000T, the diameter is 13M, and 24 concrete blocks are required for each library for the lifting support and configuration. In principle, a total of 1824 blocks need to be poured for 76 libraries in this project. Considering the flowing water construction operation, at least 800 blocks need to be made for the three construction areas under simultaneous construction, consuming a total of 400M of concrete 3 , and at the same time, the formwork amortization is 300M 2 , and 280 man-hours are consumed for labor and others. That is, using the old-fashioned lifting device with counterweight blocks has the disadvantages of complex construction, slow construction assembly, long mechanical working hours, and large concrete consumption. Summary of the Utility Model

[0005] The purpose of the utility model is to disclose a lifting device for the inverted construction of grain silos to overcome the problems of the prior art. Through the structural design of the lifting device for the inverted construction of grain silos of the utility model, the concrete counterweight blocks of the traditional lifting device are cancelled, thus saving material costs, labor, construction period and ensuring construction quality, etc.

[0006] The purpose of the utility model is realized by the following technical solutions:

[0007] A lifting device for the inverted construction of grain silos, the lifting device for the inverted construction of grain silos includes: an upright frame, a hoist, a pull rod and a strut;

[0008] The grain silo to be constructed is fixed on a base, the base is located above the supporting ground, and the upright frame is fixed on the base;

[0009] The hoist is fixed on the upright frame, and one end of the lifting cable of the hoist is connected to an ear plate on the side wall of the silo;

[0010] One end of the pull rod is connected to the top end of the upright frame, and the other end is in contact with the ground top support;

[0011] One end of the strut is hinged to the bottom of the pull rod, and the other end is in top support contact with the side wall of the base.

[0012] According to a preferred embodiment, the pull rod is hinged to the vertical frame.

[0013] According to a preferred embodiment, a limit locking structure is provided at the hinged position of the pull rod and the vertical frame.

[0014] According to a preferred embodiment, the strut is hinged to the pull rod.

[0015] According to a preferred embodiment, a limit locking structure is provided at the hinged position of the strut and the pull rod.

[0016] According to a preferred embodiment, the vertical frame is fixedly connected to the base through a screw embedded in the base.

[0017] According to a preferred embodiment, the lifting devices for the inverted construction of the grain silo are arranged at equal angular intervals around the circumference of the grain silo.

[0018] According to a preferred embodiment, the side wall of the silo is composed of a plurality of plate bodies spliced together.

[0019] According to a preferred embodiment, the vertical frame is a steel structure frame.

[0020] According to a preferred embodiment, the pull rod and the strut are steel structure rods.

[0021] The main solution of the present invention and its various further alternative solutions can be freely combined to form multiple solutions, all of which are the solutions that can be adopted and claimed by the present invention. Those skilled in the art can understand that there are various combinations according to the prior art and common general knowledge after understanding the solution of the present invention, all of which are the technical solutions to be protected by the present invention and will not be enumerated here.

[0022] Advantages of the present invention:

[0023] Compared with the traditional lifting device, the device of the present invention cancels the concrete counterweight block, adds inclined strut members and horizontal support members to ensure the stability of the lifting bracket, cancels the concrete counterweight block, and saves the production and curing cycle of the concrete counterweight block and the cost expenditure of concrete materials. Description of the drawings

[0024] Figure 1 is a schematic structural diagram of a traditional lifting device;

[0025] Figure 2 is a schematic structural diagram of the lifting device of the present invention;

[0026] Among them, 101 - base, 102 - silo side wall, 103 - ear plate, 104 - vertical frame, 105 - lifting hoist, 106 - steel cable, 107 - concrete block, 201 - base, 202 - silo side wall, 203 - ear plate, 204 - vertical frame, 205 - lifting hoist, 206 - tie rod, 207 - strut. Specific embodiments

[0027] The following specific examples illustrate the embodiments of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0028] It should be noted that: Similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0030] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0031] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In addition, it should be pointed out that in the present utility model, if the specific structures, connection relationships, positional relationships, power source relationships, etc. involved are not specifically written, then the structures, connection relationships, positional relationships, power source relationships, etc. involved in the present utility model are all those that can be known by those skilled in the art on the basis of the prior art without creative labor.

[0033] Refer to Figure 2 As shown, a lifting device for the inverted construction of a grain silo is shown in the figure. The lifting device for the inverted construction of the grain silo includes: an upright frame 204, a hoist 205, a tie rod 206, and a strut 207.

[0034] The grain silo to be constructed is fixed on a base 201, and the base 201 is located above the supporting ground. The upright frame 204 is fixed on the base 201.

[0035] The hoist 205 is fixed on the upright frame 204. One end of the lifting cable of the hoist 205 is connected to an ear plate 203 on the side wall 202 of the silo, and the other end can be operated by construction workers.

[0036] One end of the tie rod 206 is connected to the top of the upright frame 204, and the other end is in contact with the ground for bracing. One end of the strut 207 is hinged to the bottom position of the tie rod 206, and the other end is in contact with the side wall of the base 201 for bracing, and is used to provide corresponding tension for the upright frame 204 during the process of lifting the side wall 202 of the silo, so as to ensure that the upright frame 204 will not tip over or undergo lateral deformation.

[0037] Preferably, the tie rod 206 is hinged to the upright frame 204, which helps to complete the angle adjustment between the tie rod 206 and the upright frame 204, so that the device can adapt to various sites.

[0038] Furthermore, a limit locking structure is provided at the hinged position between the tie rod 206 and the upright frame 204, thereby ensuring the structural stability of the lifting device.

[0039] Preferably, the strut 207 is hinged to the tie rod 206, which helps to complete the angle adjustment between the strut 207 and the tie rod 206, so that the device can adapt to various sites.

[0040] Furthermore, a limit locking structure is provided at the hinged position between the support rod 207 and the pull rod 206, thus ensuring the structural stability between the support rod 207 and the base 201.

[0041] Preferably, the vertical frame 204 is fixedly connected to the base 201 through a screw rod embedded in the base 201.

[0042] Preferably, the lifting device for the inverted construction of the grain silo is arranged at equal angular intervals around the circumference of the grain silo, thus ensuring the lifting stability during the process of lifting the grain silo.

[0043] Preferably, the side wall 202 of the silo is composed of several plate bodies spliced together. Preferably, the vertical frame 204 is a steel structure frame. Preferably, the pull rod 206 and the support rod 207 are steel structure rods.

[0044] Compared with the traditional lifting device, the device of the present utility model cancels the concrete counterweight, adds inclined strut members and horizontal support members, ensures the stability of the lifting bracket, cancels the concrete counterweight, and saves the production and maintenance cycle of the concrete counterweight and the cost expenditure of concrete materials.

[0045] The optimized vertical frame system has significantly improved bearing capacity and device stability. Moreover, after canceling the concrete counterweight, the lifting device is more economical and reasonable, and is convenient for quick installation and use. Through the comparison of the construction effects of the on-site devices before and after improvement, it can be seen that the device can lift the silo structure more stably, shorten the installation period, and save time costs.

[0046] Embodiment

[0047] A certain grain storage depot uses all stainless steel galvanized corrugated profiled sheet assembled silos. The diameter of the silo body is 21.38M, the height is 23M, the capacity of a single silo is 5000T, and there are 76 silos in this project.

[0048] The installation of the steel plate silo adopts the inverted construction method, and the installation process is as follows: construction of the reinforced concrete base of the silo → installation of the topmost wall panel → installation of the silo top → installation of the lifting device → lifting of the wall panel → installation of the second topmost wall panel → lifting of the wall panel → cyclic lifting until completion.

[0049] The specific construction process for the installation of each node:

[0050] 1) Selection of lifting points

[0051] According to the design scheme, the diameter of the steel plate silo body is 21.38M, the height is 23M, and the total weight is 56.4t. According to the construction process, the maximum lifting weight is 42.1t. After calculation, the number of lifting points is 24.

[0052] 2) Selection of lifting device

[0053] The lifting device is composed of an upright frame 204, a pull rod 206 and a strut 207, and the height of the upright frame 204 is 4m.

[0054] 3) Installation on the top of the silo

[0055] Install the top wall panel and the central umbrella frame on the base 201 by hoisting, and cut a hole vertically in the top wall panel according to the position of the upright frame 204 (the width of the hole band is 300mm).

[0056] 4) Installation and operation of the lifting device

[0057] First, install the upright frame 204 system, and install expansion rings on the wall panels. According to the number of upright frames 204, use 24 lifting hoists to maintain synchronous lifting. The lifting hoists should be evenly arranged in the circumferential direction of the tank body circumference, and in the radial direction, it should be ensured that the upper and lower lifting lugs are vertically aligned to keep the chain hoist as vertical as possible to bear the force. Then install the support members to ensure the relative balance of the forces between the columns.

[0058] 5) Installation of the sub-top wall panel

[0059] Install the sub-top wall panel with a 50% lapping rate, leave 2 un-welded openings on the surrounding plate, and set 1 set of opening adjusting devices on each opening for gradually tightening the wall panel during the lifting and splicing process.

[0060] 6) Lifting of the wall panel

[0061] Before each lifting, conduct a comprehensive and careful inspection of the lifting device, and only start lifting after passing the inspection. When lifting to the height of 1 wall panel, stop lifting and continue to install the wall panel and the expansion ring.

[0062] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A grain silo inverted construction lifting device, characterized in that: The grain silo inverted construction lifting device comprises: a stand (204), a lifting hoist (205), a pull rod (206) and a support rod (207); The grain silo to be constructed is fixed on a base (201), the base (201) is located on a supporting ground, and the stand (204) is fixed on the base (201); The lifting hoist (205) is fixed on the vertical frame (204), and one end of the lifting cable of the lifting hoist (205) is connected to the ear plate on the side wall (102) of the silo; One end of the pull rod (206) is connected to the top of the stand (204), and the other end is in contact with the ground support; One end of the support rod (207) is hingedly connected to the bottom of the pull rod (206), and the other end is in contact with the top support of the side wall of the base (201).

2. The grain silo inverted construction lifting device according to claim 1 is characterized in that: The pull rod (206) is hingedly connected to the stand (204).

3. The grain silo inverted construction lifting device according to claim 2 is characterized in that: A limiting locking structure is provided at the hinged position between the pull rod (206) and the stand (204).

4. The grain silo inverted construction lifting device according to claim 1, characterized in that: The support rod (207) is hingedly connected to the pull rod (206).

5. The grain silo inverted construction lifting device according to claim 4 is characterized in that: A limiting locking structure is provided at the hinged position between the support rod (207) and the pull rod (206).

6. The grain silo inverted construction lifting device according to claim 1, characterized in that: The stand (204) is fixedly connected to the base (201) via a screw rod pre-buried in the base (201).

7. The grain silo inverted construction lifting device according to claim 1, characterized in that: The grain silo inverted construction lifting devices are arranged at equal angles around the circumference of the grain silo.

8. The grain silo inverted construction lifting device according to claim 7, characterized in that: The silo side wall (102) is composed of a plurality of plate bodies spliced ​​together.

9. The grain silo inverted construction lifting device according to claim 1, characterized in that: The stand (204) is a steel structure frame.

10. The grain silo inverted construction lifting device according to claim 1, characterized in that: The pull rod (206) and the support rod (207) are steel structure rods.

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