Steel truss synchronous jacking system

Abstract

The utility model relates to the technical field of cement clinker warehouse net rack installation, in particular to a steel net rack synchronous jacking system which comprises a hydraulic lifter, a lifting assembly, a jacking device and a hydraulic pump. The jacking device comprises a positioning frame, a hydraulic cylinder fixed to the positioning frame and a jacking support located above the hydraulic cylinder. A connecting sleeve is fixed to the head of a piston rod of the hydraulic cylinder, a first protrusion is arranged on the periphery of the connecting sleeve, and a first round hole is formed in the first protrusion. The jacking support comprises a connecting plate and multiple layers of round rods fixed below the connecting plate, the round rods on each layer are evenly distributed on the periphery of the hydraulic cylinder, discs are fixed to the two ends of each round rod, threaded holes are evenly distributed in the circumferences of the discs, bolts are arranged in the threaded holes to connect and fix the round rods on each layer, and second protrusions are fixed to the rod portions of the round rods. A second round hole is formed in the second protrusion, and a hook lock is connected between the first round hole and the second round hole. The construction operation steps can be reduced, the construction cost is saved, and the construction period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of cement clinker warehouse grid installation, in particular to a steel grid synchronous jacking system. Background Art

[0002] Cement is a widely used building material, widely used in civil engineering, water conservancy projects, roads and bridges, and house construction. Cement clinker is a semi-finished product of cement. Cement clinker is a block of raw materials such as limestone and clay that are sintered at high temperatures. Cement clinker is mixed with some additives in a certain proportion and then ground to form cement.

[0003] Cement clinker silos are usually built in cement manufacturing plants to store cement clinker. The bottom of the clinker silo is a concrete cylindrical silo structure, which can be filled with cement clinker. A conical silo grid is installed above the silo, and a steel-structured roof house is installed above the silo grid. A conveying corridor is installed on the roof house to connect to the kiln head for preparing cement clinker. The cement clinker is transported from the kiln head to the roof house through the zipper machine in the conveying corridor, and then falls from the discharge port of the roof house into the silo below for storage.

[0004] For most building grid structures, during construction, lifting equipment is usually used to lift the grid assembled on the ground to the top of the concrete silo for installation and fixation, such as the prior art "A multi-layer variable height space structure lifting point conversion lifting system level construction method" (publication number: CN117166693A), but the prior art still has the following technical problems:

[0005] The solution of the prior art is to first complete the assembly of the grid on the ground, and then use a lifter to lift the grid as a whole to the installation position for fixation. However, for the silo grid of the clinker warehouse, its structure is a conical multi-level grid, and each layer of the grid has a certain height. If the solution of the prior art is adopted, scaffolding needs to be built when splicing each layer of the grid to facilitate the construction workers to assemble the rods. After the assembly is completed, the scaffolding needs to be dismantled. The construction operation process is very cumbersome, the construction period is long, and the construction cost will be increased. Utility Model Content

[0006] The utility model provides a steel grid synchronous jacking system, which can solve the problems of complicated construction operation process and long construction period in the prior art lifting system when installing the grid.

[0007] The present application provides the following technical solutions: a synchronous jacking system for a steel grid, comprising a hydraulic lifter fixed on a concrete silo, a lifting assembly fixed on the outer periphery of the silo grid, a jacking device for lifting the silo grid, and a hydraulic pump for providing power;

[0008] The jacking device comprises a positioning frame, a hydraulic cylinder fixed on the positioning frame and a jacking bracket located above the hydraulic cylinder;

[0009] A connecting sleeve is fixed to the piston rod head of the hydraulic cylinder, a first protrusion is arranged around the connecting sleeve, and a first circular hole is arranged on the first protrusion;

[0010] The lifting bracket includes a connecting plate fixed below the silo grid base and a plurality of layers of round rods fixed below the connecting plate, each layer of round rods is evenly distributed around the hydraulic cylinder, discs are fixed at both ends of the round rods, threaded holes are evenly distributed on the circumference of the discs, bolts are arranged in the threaded holes to connect and fix each layer of round rods, a second protrusion is fixed on the rod portion of the round rod, a second round hole is arranged on the second protrusion, and a hook lock is connected between the first round hole and the second round hole.

[0011] Beneficial effect: The present application is provided with multiple layers of round rods, so that when the entire lifting device lifts the grid base to a certain height, the second layer of round rods can be spliced ​​under the first layer of round rods, so that the grid can be lifted to a certain height by the unspliced ​​round rods in sequence, so that it is convenient for construction workers to install each layer of the grid step by step, and the grid base is gradually lifted upward from the ground, and construction workers can assemble the grid using ordinary mobile ladders without building scaffolding, which greatly reduces the construction operation steps, saves construction costs, and shortens the construction period.

[0012] Furthermore, the positioning frame includes two steel beams fixed perpendicularly to each other, and the cross-section of the steel beam is I-shaped; the hydraulic cylinder is fixed above the intersection of the two steel beams.

[0013] Beneficial effect: The positioning frame adopts a steel beam with a cross-shaped cross section, and the hydraulic cylinder is fixed above the intersection of the two steel beams.

[0014] It can increase the weighing capacity and improve the support strength and stability during the jacking process.

[0015] Furthermore, it also includes a control system, which includes a PLC and a plurality of solenoid valves electrically connected to the PLC, and the solenoid valves are installed on each connecting pipeline between the hydraulic pump and the hydraulic lifter and the hydraulic cylinder.

[0016] Beneficial effects: Through PLC, the on and off of multiple solenoid valves can be remotely controlled, thereby controlling the hydraulic pump to supply oil to each hydraulic cylinder or hydraulic lifter synchronously or individually, thereby achieving synchronous lifting of the grid or fine-tuning the lifting height of a single support point, ensuring the stability and synchronization of the jacking overshoot.

[0017] Furthermore, four lifting devices are provided and arranged in a square below the silo grid base.

[0018] Beneficial effects: The square layout can provide good stability, ensure that the silo grid base remains balanced during the jacking process, reduce the risk of tipping, help control the shaking and swinging during the jacking process, and improve the safety of the jacking operation.

[0019] Furthermore, the lifting assembly includes a welding ball and a rod for fixing the welding ball and the silo grid. There are eight lifting assemblies, which are evenly distributed on the outer circumference of the silo grid.

[0020] Beneficial effects: The uniform distribution of the eight lifting components can ensure the balanced distribution of the load when the silo grid is lifted to the top of the concrete silo, avoiding structural stress concentration and deformation caused by uneven load, helping to maintain the structural stability and balance of the silo grid during the lifting process, reducing shaking and swinging, and ensuring the safety of the lifting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the utility model.

[0022] Figure 2 for Figure 1 The main view after splicing two layers of round rods.

[0023] Figure 3 This is a schematic diagram of the silo grid after the jacking device is removed. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods:

[0025] The marks in the drawings of the specification include: grid base 1, support column 2, first layer grid 3, platform 4, steel beam 5, hydraulic cylinder 6, round rod 7, hook lock 8, connecting plate 9, connecting sleeve 10, first protrusion 11, second protrusion 12, second layer grid 13, hydraulic lifter 14, concrete silo 15, rod 16, welding ball 17, hook rope 18.

[0026] Embodiment 1

[0027] like Figures 1 to 3 As shown, a steel grid synchronous jacking system includes a plurality of hydraulic lifters 14 evenly distributed on a concrete silo 15 in a circular pattern, a lifting assembly fixedly installed on the periphery of the silo grid 19, a lifting device for lifting the silo grid 19, a hydraulic pump for providing power, and a control system for controlling the action of the hydraulic lifters 14 and the hydraulic pump.

[0028] like Figure 3 As shown, the entire silo grid 19 is formed by a plurality of bolt balls connected to each other to form a grid structure with a conical profile. To facilitate the display of its structure, Figure 3This is a view cut along the radial direction of the silo grid, omitting most of the grid structure and retaining only the grid shape on both sides.

[0029] like Figure 1 As shown, the lifting device includes a positioning frame, a hydraulic cylinder 6 fixed on the positioning frame by screws, and a lifting bracket located above the hydraulic cylinder 6.

[0030] The positioning frame includes two steel beams 5 fixed in a cross shape at right angles to each other. The cross-section of the steel beam 5 is an I-shaped. The base screws of the hydraulic cylinder 6 are fixed above the intersection of the two steel beams 5. A platform 4 is provided under the steel beam 5. The platform 4 is a concrete platform 4 with a length, width and height of 2m×2m×200mm respectively. The platform 4 can prevent the accumulation of water on site from affecting the jacking device.

[0031] An integrally formed connecting sleeve 10 is fixed to the piston rod head of the hydraulic cylinder 6 . A plurality of first protrusions 11 are evenly distributed around the circumference of the connecting sleeve 10 . A first circular hole is provided on each first protrusion 11 .

[0032] The lifting bracket includes a connecting plate 9 fixed by screws under the silo grid base 1 and a plurality of round rods 7 fixed by screws under the connecting plate 9. Each layer of round rods 7 is composed of a plurality of round rods 7 evenly distributed around the hydraulic cylinder 6. Discs are fixed at both ends of the round rods 7. Threaded holes are evenly distributed around the discs. Bolts are provided in the threaded holes to fix the round rods 7 to the connecting plate 9. At the same time, each layer of round rods 7 can also be connected and fixed. In the present application, four connecting rods are arranged around the hydraulic cylinder 6. Second protrusions 12 are evenly distributed around the rod portion of the round rod 7. Second circular holes are provided on the second protrusions 12. A hook lock 8 is connected between the first circular hole on the first protrusion 11 and the second circular hole on the second protrusion 12.

[0033] The control system includes a PLC and a plurality of solenoid valves electrically connected to the PLC, and the solenoid valves are installed on each connecting pipeline between the hydraulic pump and the hydraulic lifter 14 and the hydraulic cylinder 6. The PLC can remotely control the on and off of the plurality of solenoid valves, thereby controlling the hydraulic pump to synchronously or individually supply oil to each hydraulic cylinder 6 or hydraulic lifter 14, thereby achieving synchronous lifting of the grid or fine-tuning the lifting height of a single support point, and ensuring the stability and synchronization of the jacking overshoot.

[0034] like Figure 3 As shown, the lifting assembly includes a welding ball 17 and a rod 16 fixed between the welding ball 17 and the silo grid 19. There are eight lifting assemblies, which are evenly spaced on the outer circumference of the bottom of the silo grid 19.

[0035] The improvement method of this system is as follows:

[0036] Step 1: Install the lifting device. Figure 1 and Figure 2As shown, support columns 2 are fixed on the periphery of the grid base 1, and the support columns 2 support the grid base 1 on the ground. Then, four lifting devices are arranged below the grid base 1, and the connecting plate 9 and the first layer of round rods 7 are fixed by screws below the grid base 1, and connected to the first protrusion 11 and the second protrusion 12 with hook locks 8. Then, the four hydraulic cylinders 6 are controlled by PLC to lift synchronously. The lifting force of the piston rod of the hydraulic cylinder 6 lifts the grid base 1 to a certain height, and then the construction workers can install the first layer of grid 3.

[0037] Step 2: Raise the height of the lifting device. After the first layer of grid 3 is installed, bolt another layer of round rods 7 under the first layer of round rods 7, and then control the hydraulic cylinder 6 to descend. The bottom of the lower round rods 7 will be supported on the steel beam 5 to support the entire grid base 1. Then remove the hook lock 8, and use the hook lock 8 to hook the second protrusion 12 on the lower round rod 7 with the first protrusion 11 of the connecting sleeve 10, and control the hydraulic cylinder 6 to lift a certain height (such as Figure 2 As shown), the construction workers can assemble the second layer of grid 13, and so on until all levels of grids are assembled.

[0038] Step 3: Install the lifting components. Figure 3 As shown, rods 16 and balls 17 are welded on the outer ring of the bottom of the grid.

[0039] Step 4: Lift the silo grid. Use the steel cable 18 of the hydraulic lifter 14 to fix it to the welding ball 17, use the PLC to control all the hydraulic lifters 14 to lift the entire grid upward to the top of the concrete silo 15, and then fix the support parts of the grid between the concrete silo 15 at the bottom of the grid. The support parts fix the entire grid above the concrete silo 15, and finally remove the welding ball 17 and the rod 16 to complete the lifting of the grid.

[0040] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A steel grid synchronous lifting system, comprising a hydraulic lifter fixed on a concrete silo, a lifting assembly fixed on the outer periphery of the silo grid, a lifting device for lifting the silo grid, and a hydraulic pump for providing power; characterized in that: The jacking device comprises a positioning frame, a hydraulic cylinder fixed on the positioning frame and a jacking bracket located above the hydraulic cylinder; A connecting sleeve is fixed to the piston rod head of the hydraulic cylinder, a first protrusion is arranged around the connecting sleeve, and a first circular hole is arranged on the first protrusion; The lifting bracket includes a connecting plate fixed below the silo grid base and a plurality of layers of round rods fixed below the connecting plate, each layer of round rods is evenly distributed around the hydraulic cylinder, discs are fixed at both ends of the round rods, threaded holes are evenly distributed on the circumference of the discs, bolts are arranged in the threaded holes to connect and fix each layer of round rods, a second protrusion is fixed on the rod portion of the round rod, a second round hole is arranged on the second protrusion, and a hook lock is connected between the first round hole and the second round hole.

2. A steel grid synchronous lifting system according to claim 1, characterized in that: The positioning frame comprises two steel beams fixed perpendicularly to each other, and the cross section of the steel beam is an I-shape; the hydraulic cylinder is fixed above the intersection of the two steel beams.

3. A steel grid synchronous lifting system according to claim 2, characterized in that: It also includes a control system, which includes a PLC and a plurality of solenoid valves electrically connected to the PLC, and the solenoid valves are installed on each connecting pipeline between the hydraulic pump and the hydraulic lifter and the hydraulic cylinder.

4. A steel grid synchronous lifting system according to claim 3, characterized in that: The jacking devices are provided with four units and are arranged in a square shape below the silo grid base.

5. A steel grid synchronous lifting system according to claim 4, characterized in that: The lifting assembly comprises a welding ball and a rod member fixed between the welding ball and the silo grid frame. The lifting assembly is provided with eight pieces, which are evenly distributed on the outer circumference of the silo grid frame.

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