Auxiliary lifting device for concrete granary barrel sliding film

Abstract

The utility model discloses a concrete granary barrel sliding film auxiliary lifting device which comprises a lifting frame, an outer formwork and an inner formwork which are arranged oppositely are arranged on the lifting frame, concrete needed for forming a granary barrel is poured between the outer formwork and the inner formwork, and a vertically-arranged supporting rod is arranged in the middle of the lifting frame. A jack is arranged on the upper portion of the supporting rod and used for jacking the lifting frame to move upwards, auxiliary pushing mechanisms are detachably assembled at the lower end of the outer formwork and the lower end of the inner formwork correspondingly, and the auxiliary pushing mechanisms are used for being tightly attached to the side wall of a cured and formed granary barrel. The auxiliary pushing mechanism can apply upward pushing force to the lifting frame. The beneficial effects of the utility model are that through the arrangement of the auxiliary pushing mechanism, when the jack is jacked upwards, upward pushing force can be provided, so that the working load of the jack is reduced, and the lifting safety of the slip form device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of silo construction, and particularly relates to a concrete grain silo cylinder slip form auxiliary lifting device. Background Art

[0002] The single silo with a cylindrical structure is a widely used grain storage building, which has the advantages of large storage capacity, moisture-proof and small occupied space. The grain silo with a cylindrical structure is mainly composed of reinforced concrete solidification. For large-scale grain storage silo buildings, the slip form process is the fastest and most economical construction method at present.

[0003] The slip form device mainly consists of a formwork system, an operation platform system, a hydraulic system, a control system, etc. Among them, the formwork system includes an inner formwork, an outer formwork, a hoop and a lifting frame, which are mainly responsible for controlling the geometric shape and size of the silo and ensuring the formation of concrete. The hydraulic system is responsible for controlling the rise of the formwork.

[0004] For the slip form device, a Chinese patent document with the publication number CN216690350U discloses a concrete cylinder silo slip form construction device, a Chinese patent document with the publication number CN214786423U discloses a stable suspension scaffold for slip form construction of a shallow round silo, and a Chinese patent document with the publication number CN103104091A discloses a slip form integral lifting platform and a construction method. However, the prior arts disclosed in the above patent documents all have a common problem: in order to ensure that the concrete at the bottom is dry when the slip form rises, the interval time for each rise of the slip form device is relatively long. Since the inner and outer formworks of the slip form device are in direct contact with the concrete, this will inevitably lead to the phenomenon of adhesion between the inner and outer formworks and the concrete. And the jack controls the rise of the formwork system, the operation platform and the workers on the operation platform at the same time, and its own load is already large enough. Coupled with the existence of the adhesion phenomenon, this makes the jack have great potential safety hazards during operation. Summary of the Utility Model

[0005] In view of this, the utility model provides a concrete grain silo cylinder slip form auxiliary lifting device, aiming to assist the slip form to rise, reduce the load pressure of the jack and reduce potential safety hazards.

[0006] To achieve the above object, the technical solution of the utility model is as follows:

[0007] A slip form auxiliary lifting device for a concrete grain silo cylinder, comprising a lifting frame. The lifting frame has an outer formwork and an inner formwork arranged opposite to each other. Concrete required for pouring and forming the grain silo cylinder is used between the outer formwork and the inner formwork. A vertically arranged support rod is provided at the middle position of the lifting frame, and a jack is configured on the upper part of the support rod. The jack is used to lift the lifting frame upward. It is characterized in that: auxiliary pushing mechanisms are detachably assembled at the lower ends of the outer formwork and the inner formwork. The auxiliary pushing mechanisms are used to closely adhere to the side wall of the already solidified and formed grain silo cylinder. When the jack works, the auxiliary pushing mechanisms can apply an upward thrust to the lifting frame.

[0008] With the above structure, the lifting frame, the outer formwork and the inner formwork can be lifted upward through the jack, and through the upward thrust provided by the auxiliary pushing mechanism, the working load of the jack can be effectively reduced.

[0009] Preferably: there are multiple groups of the lifting frames, and each group of the lifting frames is distributed in a circular array. With the above structure, the overall structural style of the grain silo cylinder is ensured through the lifting frames distributed in a circular array.

[0010] Preferably: the auxiliary pushing mechanism includes a support plate connected to the bottom of the outer formwork or the inner formwork. A pulley assembly and a driving motor for driving the pulley assembly to move are provided on the support plate. The belt of the pulley assembly is used to closely adhere to the side wall of the grain silo cylinder. When the driving motor works, the pulley assembly can climb along the side wall of the grain silo cylinder. With the above structure, the pulley assembly can climb upward along the wall of the grain silo cylinder, thereby reducing the working load of the jack.

[0011] Preferably: two groups of pulley assemblies are arranged in parallel on the support plate, and the two groups of pulley assemblies are connected by a synchronous rod. The end of the synchronous rod is power-connected to the driving motor. With the above structure, the two groups of pulley assemblies can increase the surface contact with the wall of the grain silo cylinder, which is more conducive to the upward climbing of the auxiliary pushing mechanism, and the synchronous wheel ensures that the two groups of pulley assemblies can move synchronously.

[0012] Preferably: the lifting frame is of an "n" type structure, and hoops are provided on both columns of the lifting frame. The outer formwork and the inner formwork are respectively fixedly installed on one side of the hoop. With the above structure, it can be ensured that the outer formwork and the inner formwork can be fixedly installed on the lifting frame.

[0013] Preferably: the jack is a hydraulic through-hole jack, the jack is arranged on the support rod in a penetrating manner, and a hydraulic operation platform is connected to the far end of the jack. With the above structure, it can be ensured that the lifting frame, the inner formwork and the outer formwork rise more smoothly, and the hydraulic through-hole jack has a more compact structure, and the hydraulic operation platform ensures that the jacks on each lifting frame can be synchronously controlled.

[0014] Preferably, operation platforms facilitating personnel operation are provided at both ends of the lifting frame, and the hydraulic operation console is arranged on the operation platforms. With the above structure, it is convenient for the staff to control the jacks and tie the steel bars.

[0015] Preferably, each of the driving motors is electrically connected to the hydraulic operation console, and the synchronous control of the jacks and the driving motors can be achieved by operating the hydraulic operation console. With the above structure, the synchronous control of each jack and the driving motor can be carried out through the hydraulic operation platform.

[0016] Preferably, a triangular frame is provided on the column of the lifting frame, and the operation platform is supported and laid on the triangular frame. With the above structure, it can ensure that the operation platform is installed more firmly, thus ensuring the safety of personnel.

[0017] Preferably, an auxiliary platform is suspended below the operation platform by a suspension rod. With the above structure, it is convenient for the staff to maintain and seal the film on the wall of the grain bin cylinder.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] When the jacks jack up the lifting frame, the inner formwork and the outer formwork by using the concrete silo cylinder slip form auxiliary lifting device provided by the present utility model, through the synchronous operation of the driving motors, the pulley assembly can be rotated, thereby providing an upward auxiliary jacking force. Compared with the traditional method of only using jacks to jack up the lifting frame, the inner formwork and the outer formwork, the present utility model can reduce the working load of the jacks, thereby reducing the safety hazards during the rising of the slip form and ensuring the safety of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a partial structural schematic diagram (concrete section position) of the concrete silo cylinder slip form;

[0021] Figure 2 It is a top view schematic diagram of the concrete silo cylinder slip form;

[0022] Figure 3 It is a structural schematic diagram of the auxiliary jacking mechanism 6;

[0023] Figure 4 Schematic diagram of the oil circuit layout. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present utility model will be further described below in conjunction with the embodiments and the drawings.

[0025] Such as Figure 1 And Figure 2As shown in the figure, a slip formwork auxiliary lifting device for a concrete silo cylinder includes a lifting frame 1. On the vertical direction of the lifting frame 1, an outer formwork 2 and an inner formwork 3 which are oppositely distributed and fixed are installed. The concrete required for pouring and forming the silo cylinder A is used between the outer formwork 2 and the inner formwork 3. At the middle position of the lifting frame 1, a vertically arranged support rod 4 is also installed. At the upper part of the support rod 4, a jack 5 is fixedly installed. By operating the jack 5, the lifting frame 1, the outer formwork 2 and the inner formwork 3 can be synchronously lifted. In this embodiment, at the lower ends of the outer formwork 2 and the inner formwork 3, an auxiliary pushing mechanism 6 is detachably assembled. The auxiliary pushing mechanism 6 is used to closely adhere to the side wall of the solidified silo cylinder A. By operating the auxiliary pushing mechanism 6, a vertically upward thrust can be applied to the lifting frame 1, thereby reducing the working load of the jack 5.

[0026] With such a design, compared with the traditional method of only using the jack 5 for lifting, the vertically upward thrust provided by the arranged auxiliary pushing mechanism 6 effectively reduces the working load of the jack 5, thereby ensuring the safety and stability of the entire slip formwork lifting system.

[0027] As Figure 3 shown in the figure, the auxiliary pushing mechanism 6 includes a support plate 6a fixedly connected to the bottom of the outer formwork 2 or the inner formwork 3. In this embodiment, the auxiliary pushing mechanism 6 is bolted to the outer formwork 2 or the inner formwork 3, and bolt holes 6a1 are formed on the support plate 6a. With such a design, it can effectively prevent the auxiliary pushing mechanism 6 from being directly arranged on the surface of the outer formwork 2 or the inner formwork 3, resulting in the adhesion phenomenon between the auxiliary pushing mechanism 6 and the concrete, and increasing the working load of the auxiliary pushing mechanism 6.

[0028] On the support plate 6a, a pulley assembly 6b and a driving motor 6c for driving the pulley assembly 6b to move are also installed. Among them, the pulley assembly 6b is composed of two rotating wheels 6b1 and a rotating belt 6b2 sleeved on the two rotating wheels 6b1. In this embodiment, two groups of pulley assemblies 6b are installed on the support plate 6a. The two groups of pulley assemblies 6b are connected by a synchronous rod 6d. At one end of the synchronous rod 6d, a synchronous wheel 6d1 is also sleeved. The synchronous wheel 6d1 is used for power connection with the driving motor 6c. An output wheel 6c1 is installed at the output end of the driving motor 6c. A synchronous belt 6c2 is installed between the output wheel 6c1 and the synchronous wheel 6d1. When the driving motor 6c works, it can drive the synchronous rod 6d to rotate, and then drive the two groups of pulley assemblies 6b to rotate synchronously. In order to facilitate the movement of the pulley assembly 6b on the side wall of the silo cylinder A, anti-slip convex blocks 6b3 are formed on the surface of the rotating belt 6b2. Through the anti-slip convex blocks 6b3, the slipping phenomenon can be effectively prevented.

[0029] To ensure the overall structure of the grain silo cylinder A, multiple sets of lifting frames 1 are provided, and the lifting frames 1 are distributed in a circular array. In this embodiment, the lifting frame 1 adopts an "n"-type structure, and hoops 7 are installed on both columns of the lifting frame 1. The outer formwork 2 and the inner formwork 3 are both fixedly installed on the lifting frame 1 through the hoops 7. The jack 5 adopts a hydraulic through-hole jack, which can ensure the more stable rise of the lifting frame 1 on the one hand, and on the other hand, can ensure that while providing stable kinetic energy, its structure is also more compact.

[0030] As Figure 4 shown, the distal ends of the jacks 5 are connected to a hydraulic operation console 8 through oil pipes 13. An oil distributor 14 is also installed between the jacks 5 and the hydraulic operation console 8. Through the oil distributor 14, hydraulic oil can be evenly distributed to each jack 5. The distal end of the hydraulic operation console 8 is connected to a hydraulic oil storage tank. With such a design, the hydraulic operation console 8 can synchronously control each jack 5 to lift upward. In order for the auxiliary jacking mechanism 6 to also operate synchronously while the jack 5 is jacking, each drive motor 6c is electrically connected to the hydraulic operation console 8. When the hydraulic operation console 8 controls the jack 5 to lift upward, each drive motor 6c can also operate synchronously.

[0031] Again, as Figure 1 shown, in order to facilitate the staff to tie steel bars, operation platforms 9 for personnel to work are built at both ends of the lifting frame 1. In this embodiment, the hydraulic operation console 8 is also installed on the operation platform 9, which can facilitate the staff to observe and control the specific rise of the jack 5. To ensure that the installation structure of the operation platform 9 is more firm, a triangular frame 10 is installed on the column of the hoist 1, and the operation platform 9 is carried on the triangular frame 10. In order to facilitate the maintenance and film covering of the side wall of the grain silo cylinder A, an auxiliary platform 12 is also provided at the bottom of the operation platform 9 through a suspension rod 11.

[0032] In this embodiment, in order to ensure the safe operation of personnel, safety nets 15 are also installed on both sides of the operation platform 9. To facilitate the observation of the skew phenomenon during the pouring of the grain silo cylinder A, a center plate 16 and right and left hand threads 17 connected to each lifting frame 1 are provided at the center position of the grain silo cylinder A.

[0033] Through the above structure, the working principle of the present utility model is as follows: while the hydraulic operation console 8 controls each jack 5 to lift upward, it synchronously controls the operation of the drive motor 6c. The drive motor 6c drives the pulley assembly 6b to rotate closely against the side wall of the grain silo cylinder A, thereby providing an upward jacking force, effectively reducing the working load of the jack 5, and ensuring the safety and stability of the entire hydraulic lifting system.

[0034] Finally, it should be noted that the above description is only the preferred embodiment of the present utility model. Under the inspiration of the present utility model, those of ordinary skill in the art can make various similar representations without violating the purpose and claims of the present utility model. Such transformations all fall within the protection scope of the present utility model.

Claims

1. A concrete granary cylinder sliding film auxiliary lifting device, comprising a lifting frame (1), the lifting frame (1) having an outer template (2) and an inner template (3) arranged opposite to each other, the outer template (2) and the inner template (3) are used for pouring concrete required for forming the granary cylinder, a vertically arranged support rod (4) is provided in the middle of the lifting frame (1), a jack (5) is arranged on the upper part of the support rod (4), and the jack (5) is used to lift the lifting frame (1) to move upward, characterized in that: The lower ends of the outer template (2) and the inner template (3) are both detachably equipped with auxiliary pushing mechanisms (6), which are used to be closely attached to the side wall of the solidified granary cylinder. When the jack (5) is working, the auxiliary pushing mechanism (6) can apply an upward thrust to the lifting frame (1).

2. The concrete granary cylinder sliding membrane auxiliary lifting device according to claim 1 is characterized in that: There are multiple groups of lifting frames (1), and each group of lifting frames (1) is distributed in a circular array.

3. The concrete granary cylinder sliding membrane auxiliary lifting device according to claim 1 is characterized in that: The auxiliary pushing mechanism (6) comprises a support plate (6a) connected to the bottom of the outer template (2) or the inner template (3); a pulley assembly (6b) and a driving motor (6c) for driving the pulley assembly (6b) to move are provided on the support plate (6a); the belt of the pulley assembly (6b) is used to be in close contact with the side wall of the granary cylinder; when the driving motor (6c) is in operation, the pulley assembly (6b) can be driven to climb along the side wall of the granary cylinder.

4. The concrete granary cylinder sliding membrane auxiliary lifting device according to claim 3 is characterized in that: Two groups of pulley assemblies (6b) are arranged in parallel on the support plate (6a), and the two groups of pulley assemblies (6b) are connected via a synchronization rod (6d), and the end of the synchronization rod (6d) is connected to the driving motor (6c) for power.

5. The concrete granary cylinder sliding membrane auxiliary lifting device according to claim 1 is characterized in that: The lifting frame (1) is an "n"-shaped structure, and both upright posts of the lifting frame (1) are provided with a ring (7), and the outer template (2) and the inner template (3) are respectively fixedly mounted on one side of the ring (7).

6. The concrete granary cylinder sliding membrane auxiliary lifting device according to claim 3 is characterized in that: The jack (5) is a hydraulic through-type jack. The jack (5) is inserted into the support rod (4). The far end of the jack (5) is connected to a hydraulic operating platform (8).

7. The concrete granary cylinder sliding membrane auxiliary lifting device according to claim 6 is characterized in that: Both ends of the lifting frame (1) are provided with operating platforms (9) for easy operation by personnel, and the hydraulic operating platform (8) is arranged on the operating platform (9).

8. The concrete granary cylinder sliding membrane auxiliary lifting device according to claim 6 is characterized in that: Each of the driving motors (6c) is electrically connected to the hydraulic operating platform (8), and synchronous control of the jack (5) and the driving motor (6c) can be achieved by operating the hydraulic operating platform (8).

9. The concrete granary cylinder sliding membrane auxiliary lifting device according to claim 7 is characterized in that: A tripod (10) is provided on the upright column of the lifting frame (1), and the operating platform (9) is supported and laid on the tripod (10).

10. The concrete granary cylinder sliding membrane auxiliary lifting device according to claim 7 is characterized in that: An auxiliary platform (12) is suspended below the operating platform (9) via a suspension rod (11).

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