Hydraulic jacking device for granary

Abstract

The utility model discloses a granary hydraulic jacking device which comprises a hydraulic pump station, a hydraulic distribution valve and a plurality of hydraulic jacking units, and the hydraulic pump station distributes high-pressure oil through the hydraulic distribution valve and then provides power for hydraulic jacks in the hydraulic jacking units to jack at least one section pipe to the specified height. A granary construction platform is supported and attached to a core tube shear wall through a plurality of fulcrums, a hydraulic jacking unit is arranged at each fulcrum, and a hydraulic pump station supplies oil to hydraulic jacks in the hydraulic jacking units every time for equal lifting. The hydraulic jacking device has the advantages of being compact in structure, small in size, light in weight, convenient to carry, reliable in performance, convenient to mount and dismount, small in size, convenient to mount and transport and capable of greatly improving the production efficiency and safety of jacking storage tanks such as granaries and enamel tanks.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, in particular to a hydraulic jacking device for a granary. Background Art

[0002] Granaries are made of corrugated sheets, self-locking bolts, etc., and enameled assembled tanks are mainly made of enameled steel plates, self-locking bolts and sealants. The main components are corrugated sheets and enameled assembled steel plates, and most of them are constructed by the inverted installation method. The inverted installation method refers to the use of the tank foundation as the reference plane, first installing the top wall panels and the tank top, and then assembling and lifting the wall panels layer by layer from top to bottom until the bottom wall panels are installed. Granaries and enameled assembled tanks have the advantages of short engineering cycle, low cost and long service life. They have been widely promoted and applied. Most industries and chemicals require industrial tanks with larger diameters to assist production. Therefore, the construction quality of granaries and enameled tanks directly affects the production after industrial production. The existing assembly construction of granaries and enameled tanks is carried out by arranging a certain number of electric hoists along the circumference for lifting and inverted construction. With industrial demand, the diameter of the tank body continues to increase, and the weight of the tank body increases accordingly. The electric hoist lifting method is difficult to meet the construction and quality requirements in terms of bearing capacity and equal lifting accuracy. The inverted construction through hydraulic jacking lacks advanced equipment and is difficult to meet the construction requirements of large-diameter tanks. It is difficult to ensure the reliability, stability and synchronization of the jacking during construction. This is an area that needs to be improved in this application. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a granary hydraulic jacking device to achieve high alignment accuracy during granary construction.

[0004] In order to solve the above technical problems, the utility model provides a granary hydraulic jacking device, including a hydraulic pump station, a hydraulic distribution valve and a plurality of hydraulic jacking units. The hydraulic pump station distributes the high-pressure oil through the hydraulic distribution valve to provide power for the hydraulic jack in the hydraulic jacking unit to jack at least one section pipe to a specified height. The granary construction platform is supported by multiple fulcrums and attached to the core tube shear wall. A hydraulic jacking unit is arranged at each fulcrum. The hydraulic pump station supplies oil to the hydraulic jacks in the multiple hydraulic jacking units each time for uniform lifting.

[0005] The hydraulic jacking unit includes a hydraulic jack, a jacking bracket and a base. The base is provided with a sleeve. The hydraulic jack is located in the outer wall groove of the sleeve. The jacking bracket is sleeved on the inner side of the sleeve. The jacking bracket is provided with no less than two section pipes. Each section pipe is sleeved on the inner side of the previous section pipe in turn. A through hole is provided on the lower end side wall of the section pipe. The pin passes through the through hole and is supported on the upper end of the next section pipe. The jacking bracket is provided with a detachable support plate. The top first section pipe of the jacking bracket is connected to one side of the connecting plate. The hydraulic jack is provided with a high-pressure oil pipe inlet and outlet hole, and the positioning pin is connected to the base through the positioning hole.

[0006] The base is fixed on a plane, the sleeve is fixed on the middle of the plane on the base, and a plurality of stabilizing members are provided at the lower part of the sleeve and are fixedly connected with the base.

[0007] The lower earring of the hydraulic jack is fixedly connected to the bottom of the sleeve.

[0008] The other side of the connecting plate is connected to the wall plate. After the wall plate and the connecting plate are fixed, jacking begins. The high-pressure oil is distributed through the hydraulic pump station via the hydraulic distribution valve to provide power for the hydraulic jack in the hydraulic jacking unit to jack up the joint pipe.

[0009] The superior effects of the utility model are:

[0010] 1) It solves the problems of poor bearing capacity, unstable quality and low alignment accuracy of existing granary and enamel tank assembly construction, optimizes the lifting method of hydraulic jacking, achieves high alignment accuracy of granary and enamel tank construction, safe and reliable construction, simple and firm connection method, realizes synchronous and accurate jacking, and effectively ensures the construction quality of the tank;

[0011] 2) It is widely used in mobile lifting operations. It has a compact structure, small size, light weight, easy to carry, reliable performance, easy to install and disassemble, and its miniaturization makes it easier to install and transport, greatly improving the production efficiency and safety of lifting storage tanks such as granaries and enamel tanks. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0013] Figure 1 It is an axonometric diagram of a specific embodiment of the utility model;

[0014] Figure 2 This is a front view of the first pipe section after jacking up in a specific embodiment of the utility model;

[0015] Figure 3This is a front view of the second pipe section after jacking up in the embodiment of the utility model;

[0016] Figure 4 This is a side view of the third pipe after jacking in the embodiment of the utility model;

[0017] Description of the numbers in the figure:

[0018] 1—connecting plate; 2—first section of pipe;

[0019] 3—pin; 4—second section of pipe;

[0020] 5—lifting support plate; 6—third section of pipe;

[0021] 7—hydraulic cylinder; 8—foundation pipe;

[0022] 9- inclined bracket; 10- base;

[0023] 11—Hydraulic pump station; 12—High-pressure oil pipe;

[0024] 13—Large bolt; 14—Hydraulic top of granary. DETAILED DESCRIPTION

[0025] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings, taking a jacking bracket with a sleeve-type structure consisting of a base pipe and three section pipes as an example.

[0026] like Figure 1 As shown, the utility model provides a granary hydraulic jacking device, including a hydraulic pump station 11, a hydraulic distribution valve and a plurality of granary hydraulic jacks 14. The hydraulic pump station 11 distributes the high-pressure oil through the hydraulic distribution valve and then provides power to the hydraulic cylinder 7 in the granary hydraulic jack 14 through the high-pressure oil pipe 12. The construction platform is supported and attached to the core tube shear wall with multiple fulcrums. A granary hydraulic jack 14 is arranged at each fulcrum. Each hydraulic pump station 11 can supply multiple granary hydraulic jacks 14 for jacking each time. Under the condition of equal lifting accuracy, one hydraulic pump station 11 is connected to 5, 10, 15, and 20 granary hydraulic jacks 14 respectively. The stroke and total output force of all granary hydraulic jacks 14 will lift the construction platform and its ancillary equipment and facilities as a whole by at least one structural layer height. The lifting speed is about 9mm / s, and the total stroke difference of each granary hydraulic jack 14 is less than 5mm.

[0027] like Figure 2As shown, the granary hydraulic jack 14 includes a hydraulic cylinder 7, a jacking bracket and a base 10, the base 10 is fixed on a plane, the base pipe 8 is a hollow sleeve, and is fixed in the middle of the plane on the base 10, the inclined bracket 9 cooperates with the base pipe 8 and the base 10 respectively, and is connected and fixed by bolts and nuts to form a triangular stable bracket, the hydraulic cylinder 7 is placed in the outer wall groove of the base pipe 8, and the lower earring of the hydraulic cylinder 7 is fixed to the bottom of the base pipe 8 by a large bolt 13; the third section pipe 6 is inserted into the hollow part of the base pipe 8, and then the second section pipe 4 is inserted into the hollow part of the third section pipe 6, and then the jacking support plate 5 is sleeved on the upper part of the second section pipe 4, and then the first section pipe 2 is inserted into the hollow part of the second section pipe 4, and finally one side of the connecting plate 1 is connected to the first section pipe 2, and the other side of the connecting plate 1 is riveted to the wall panel. After the wall plate and the connecting plate 1 are fixed, the lifting begins. The hydraulic pump station 11 distributes the high-pressure oil through the hydraulic distribution valve to provide power for the hydraulic cylinder 7 in the granary hydraulic jack 14 to lift the first section of the pipe 2. Figure 2 As shown, the maximum lifting stroke of the hydraulic cylinder 7 is 800mm each time. When the first section of the pipe 2 is exposed through the through hole, the pin 3 is inserted for support, and then the hydraulic cylinder 7 retracts the stroke, and the lifting support plate 5 is sleeved on the upper part of the second section of the pipe 4. The second section of the pipe 4 is lifted again by the hydraulic cylinder 7. Figure 3 As shown, when the second tube 4 is exposed through the hole, the pin 3 is inserted for support, and so on. Figure 4 As shown, the lifting process ends when the wall panel is lifted to a specified height and docked with the first layer of basic wall panel.

[0028] The utility model of the granary hydraulic jacking device uses hydraulic transmission to lift the granary and the enamel assembly tank, optimizing the hydraulic jacking lifting method. The granary hydraulic jack 14 uses a rigid jacking piece as a working device, and lifts the intermediate medium jacking plate 5 through hydraulic transmission. Figure 3 As shown in A, the top connecting plate 1 is then riveted to the corrugated plate or enameled steel plate of the granary, thereby lifting the tank body and the wall panels of the granary layer by layer. The utility model granary hydraulic jacking device is aimed at engineering fields such as building granaries or enameled tank bodies. Due to its high alignment accuracy and good synchronization stability, it is used for supporting, adjusting and fixing granaries or enameled tanks, such as the inverted construction of granary-type cylindrical steel storage tanks, the inverted construction of vertical cylindrical low-temperature storage tanks, and the inverted construction of large-diameter enameled assembled tanks.

[0029] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A granary hydraulic lifting device, characterized in that: It includes a hydraulic pump station, a hydraulic distribution valve and multiple hydraulic jacking units. The hydraulic pump station distributes the high-pressure oil through the hydraulic distribution valve to provide power for the hydraulic jack in the hydraulic jacking unit to jack at least one section pipe to a specified height. The granary construction platform is supported by multiple fulcrums and attached to the core tube shear wall. A hydraulic jacking unit is arranged at each fulcrum. The hydraulic pump station supplies oil to the hydraulic jacks in the multiple hydraulic jacking units each time for uniform lifting.

2. The granary hydraulic lifting device according to claim 1 is characterized in that: The hydraulic jacking unit includes a hydraulic jack, a jacking bracket and a base. The base is provided with a sleeve. The hydraulic jack is located in the outer wall groove of the sleeve. The jacking bracket is sleeved on the inner side of the sleeve. The jacking bracket is provided with no less than two section pipes. Each section pipe is sleeved on the inner side of the previous section pipe in turn. A through hole is provided on the lower end side wall of the section pipe. The pin passes through the through hole and is supported on the upper end of the next section pipe. The jacking bracket is provided with a detachable support plate. The top first section pipe of the jacking bracket is connected to one side of the connecting plate. The hydraulic jack is provided with a high-pressure oil pipe inlet and outlet hole, and the positioning pin is connected to the base through the positioning hole.

3. The granary hydraulic lifting device according to claim 2 is characterized in that: The sleeve is fixed to the middle of the upper plane of the base, and a plurality of stabilizing members are provided at the lower part of the sleeve and are fixedly connected to the base.

4. The granary hydraulic lifting device according to claim 2 is characterized in that: The lower earring of the hydraulic jack is fixedly connected to the bottom of the sleeve.

5. The granary hydraulic lifting device according to claim 2 is characterized in that: The other side of the connecting plate is connected to the wall plate. After the wall plate and the connecting plate are fixed, jacking begins. The high-pressure oil is distributed through the hydraulic pump station via the hydraulic distribution valve to provide power for the hydraulic jack in the hydraulic jacking unit to jack up the joint pipe.

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