Pouring device and pouring method for shaft pressure steel pipe outer concrete

Abstract

The application provides a vertical shaft pressure steel pipe outer concrete pouring device and a pouring method. The device comprises a concrete hanging tank, the bottom of the concrete hanging tank is connected with the inner ring of a rotary table bearing through a connecting frame, the rotary table bearing is arranged around the discharging port of the concrete hanging tank, the top of a distribution bin is connected with the bottom of the outer ring gear of the rotary table bearing, a driving motor is arranged on the connecting frame, the output end of the driving motor is provided with a driving gear which is engaged with the outer ring gear of the rotary table bearing, and at least two groups of inlet chute pipes are arranged on the side wall of the distribution bin, and the discharging ports of the inlet chute pipes are arranged between the pressure steel pipe and the shaft wall. The device and the method can improve the uniformity and the pouring speed.

Description

Technical Field

[0001] This invention relates to the field of construction equipment, and in particular to a concrete pouring device and method for externally encasing a vertical shaft pressure steel pipe. Background Technology

[0002] The existing method of pouring concrete over the pressure steel pipes in vertical shafts utilizes chutes and pipes, or concrete buckets, to deliver concrete to a distribution platform on the concrete pouring surface of the shaft. Workers then control valves on the distribution platform and adjust the angle of the concrete chutes to pour the concrete into the formwork. This construction process has several drawbacks. First, in deeper shafts, the concrete flowing down from the top causes significant wear on the chutes, leading to chute breakage and concrete overflow, resulting in waste of raw materials and pollution of the construction environment. Secondly, in deeper shafts, concrete separation can occur during the chute process, severely affecting the pouring quality. Secondly, in the current construction plan, whether using chute or hoist for placement, the concrete distribution platform needs to be placed on the lifting frame, which in turn needs to be hung on the pressure steel pipe wall. This firstly occupies the hanging position of the pressure steel pipe welding platform, forcing the pouring of the outer concrete and the welding of the internal pressure steel pipe to be carried out in separate steps. Secondly, in the plan, the distribution platform, lifting frame, and chute are all separate structures. As the shaft working face advances, the positions of these three components need to be constantly adjusted, requiring the ground lifting system to be repeatedly raised and lowered. These two factors severely restrict the overall construction speed when the shaft is deep. Thirdly, in the current construction process, workers need to stand in the narrow space between the distributor and the shaft wall to operate the distribution control valve and the chute placement position. The working environment is poor and there are certain safety risks. Moreover, this manual operation method cannot accurately control the speed of concrete flow and placement position, resulting in inconsistent concrete pouring speeds on both sides. This can lead to situations where one side is completed while the other is not, potentially causing concrete overflow and affecting construction efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a concrete pouring device and method for externally wrapping concrete around vertical shaft pressure steel pipes, so as to improve the uniformity, speed and safety of pouring.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a concrete pouring device for external wrapping of vertical shaft pressure steel pipe, including a concrete hoisting tank, the bottom of the concrete hoisting tank being connected to the inner ring of a turntable bearing via a connecting frame, the turntable bearing being arranged around the discharge port of the concrete hoisting tank, the top of the distribution hopper being connected to the bottom of the outer ring gear of the turntable bearing, a drive motor being provided on the connecting frame, the output end of the drive motor being provided with a drive gear meshing with the outer ring gear of the turntable bearing, at least two sets of inlet chutes being provided on the side wall of the distribution hopper, and the discharge port of the inlet chutes being located between the pressure steel pipe and the shaft wall.

[0005] In a preferred embodiment, the concrete hopper is provided with several telescopic mechanisms on its outer side, which are supported on the well wall during pouring.

[0006] In a preferred embodiment, the telescopic mechanism is a hydraulic cylinder.

[0007] In a preferred embodiment, the inlet chute is equipped with a concrete flow meter.

[0008] In a preferred embodiment, the bottom of the material distribution bin is provided with an adjustment plate, the upper side of which is an inclined surface. The adjustment plate is rotatably installed inside the material distribution bin via bearings. The bottom of the adjustment plate is provided with a drive shaft, and a rotary motor is provided on one side of the material distribution bin. The rotary motor is connected to the drive shaft via a transmission mechanism.

[0009] In a preferred embodiment, the transmission mechanism includes a driving wheel disposed at the output end of the rotary motor and a driven wheel disposed on the drive shaft, the driving wheel and the driven wheel being driven by a belt.

[0010] In a preferred embodiment, a laser rangefinder is installed at the bottom of the material distribution bin.

[0011] The present invention also provides a method for pouring concrete for a vertical shaft pressure steel pipe external casing, comprising the following steps:

[0012] Step 1: Pour concrete into the hoisting tank through the chute and pipe. The hoisting equipment on the surface lifts the concrete hoisting tank to the working face. After the concrete hoisting tank is lifted above the pressure steel pipe and reaches the preset distance, the hoisting equipment on the surface stops lifting.

[0013] Step 2: The telescopic mechanism extends until its end is supported on the well wall to support the concrete bucket;

[0014] Step 3: Open the valve of the concrete bucket discharge port, and the concrete flows into the distribution bin. The drive motor drives the distribution bin to rotate 180° back and forth, so that the concrete is evenly poured to the outside of the steel pipe, thus realizing the concrete pouring into the bin.

[0015] Step 4: The hoisting equipment on the well lifts the concrete bucket, the telescopic mechanism retracts, the support on the concrete bucket is released, the hoisting equipment on the well raises the height of the concrete bucket, and the pressure steel pipe welding construction continues. After the pressure steel pipe stage construction is completed, repeat steps one to three until all concrete pouring is completed.

[0016] In the preferred embodiment, in step one, the distance between the bottom of the material distribution hopper and the concrete pouring surface is measured using a laser rangefinder.

[0017] In the preferred embodiment, in step three, when there is a deviation in the concrete flow rate data measured by the concrete flow meters on both sides of the inlet chute, the rotary motor is driven to rotate the adjustment disc and adjust the tilt direction of the adjustment disc until the concrete flow rate data measured by the concrete flow meters on both sides are equal.

[0018] The present invention provides a concrete pouring device and method for externally encasing vertical shaft pressure steel pipes, which has the following beneficial effects:

[0019] 1. A concrete hoisting tank method is adopted, with an inlet at the top of the hoisting tank and chutes and pipes installed above ground to pour concrete into the hoisting tank with a small drop, which can prevent wear of the chute and segregation of concrete when the depth is large.

[0020] 2. By rotating the distribution hopper, the concrete in the concrete bucket is distributed through the distribution hopper. Due to the rotation of the distribution hopper, the concrete can be automatically and evenly delivered into the hopper, preventing the situation where one side is completed while the other side is not, due to the inconsistent pouring speed of the concrete on both sides.

[0021] 3. The concrete hoisting tank and distribution bin are designed as an integrated structure, which can greatly reduce the reciprocating hoisting time of the hoisting mechanism above ground.

[0022] 4. The welding of the internal pressure steel pipes and the external pouring can be carried out simultaneously.

[0023] 5. By setting an adjustment plate, the tilt direction of the adjustment plate can be adjusted to ensure that the discharge speed of the inlet chute on both sides is consistent, thereby improving the uniformity of pouring.

[0024] 6. It can improve the quality, efficiency, and safety of concrete pouring for the outer casing of pressure steel pipes.

[0025] 7. No manual adjustment of the material distributor is required when the concrete is poured into the formwork, allowing for unmanned pouring. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the material distribution bin.

[0029] In the diagram: 1. Concrete hoisting tank; 2. Connecting frame; 3. Turntable bearing; 4. Distribution bin; 5. Drive motor; 6. Drive gear; 7. Inlet chute; 8. Telescopic mechanism; 9. Concrete flow meter; 10. Adjusting disc; 11. Drive shaft; 12. Rotary motor; 13. Drive wheel; 14. Driven wheel; 15. Laser rangefinder; 16. Pressure steel pipe; 17. Well wall. Detailed Implementation

[0030] like Figures 1-2 As shown, a concrete pouring device for a vertical shaft pressure steel pipe includes a concrete tank 1. The bottom of the concrete tank 1 is connected to the inner ring of a turntable bearing 3 via a connecting frame 2, specifically by bolts. The turntable bearing 3 is a toothed bearing turntable. The turntable bearing 3 is arranged around the discharge port of the concrete tank 1. The top of the distribution bin 4 is connected to the bottom of the outer ring gear of the turntable bearing 3, so that the distribution bin 4 can rotate relative to the concrete tank 1. The concrete discharged from the discharge port at the bottom of the concrete tank 1 can fall into the distribution bin 4.

[0031] The connecting frame 2 is equipped with a drive motor 5. The output end of the drive motor 5 is equipped with a drive gear 6 that meshes with the outer ring gear of the turntable bearing 3. The side wall of the distribution bin 4 is equipped with at least two sets of inlet chutes 7. In this embodiment, the number of inlet chutes 7 is two sets, which are symmetrically arranged. The outlet of the inlet chutes 7 is located between the pressure steel pipe 16 and the well wall 17.

[0032] To prevent wear of the chute and segregation of concrete when the depth is large, a concrete hoisting tank method is adopted. An inlet is set at the top of the concrete hoisting tank 1, and a chute and sluice are set above the well to pour concrete into the concrete hoisting tank 1 with a small drop.

[0033] As the distribution bin 4 rotates, the concrete in the concrete tank 1 is distributed through the distribution bin 4. Because the distribution bin 4 rotates, the concrete can be automatically and evenly delivered into the tank, preventing the situation where one side is completed while the other side is not, due to the inconsistent pouring speed of the concrete on both sides.

[0034] The concrete hoist 1 is equipped with several telescopic mechanisms 8 on its outer side. During pouring, the telescopic mechanisms 8 are supported on the well wall 17.

[0035] In this embodiment, the telescopic mechanism 8 is a hydraulic cylinder, and there are three sets. By setting the telescopic mechanism 8, the concrete hoist 1 is supported on the well wall 17, which can fix the concrete hoist 1 and prevent it from shaking during pouring.

[0036] The inlet chute 7 is equipped with a concrete flow meter 9. By setting up the concrete flow meter 9, the concrete flow data is measured to prevent the pouring flow of the two inlet chutes 7 from being different, which would affect the synchronous rise of the concrete surface.

[0037] Preferably, the bottom of the material distribution bin 4 is provided with an adjustment plate 10, the upper side of the adjustment plate 10 is an inclined surface, the adjustment plate 10 is rotatably installed in the material distribution bin 4 through a bearing, the bottom of the adjustment plate 10 is provided with a drive shaft 11, and a rotary motor 12 is provided on one side of the material distribution bin 4. The rotary motor 12 is connected to the drive shaft 11 through a transmission mechanism.

[0038] In this embodiment, the transmission mechanism includes a drive wheel 13 disposed at the output end of the rotary motor 12 and a driven wheel 14 disposed on the drive shaft 11, and the drive wheel 13 and the driven wheel 14 are driven by a belt.

[0039] The drive shaft 11 and the adjustment plate 10 are driven to rotate synchronously by the rotary motor 15. The tilt direction of the adjustment plate 10 is adjusted, thereby adjusting the discharge speed of the inlet chute 7 on both sides, ensuring that the discharge speed of the inlet chute 7 on both sides is equal, and ensuring that the bin surface can rise evenly and synchronously.

[0040] Preferably, a laser rangefinder 15 is provided at the bottom of the material distribution hopper 4. The laser rangefinder 15 is connected to a PLC controller, which controls the valve of the discharge port of the concrete hoist 1, the hoisting equipment, and the drive motor 5 and the rotary motor 12 to realize automatic pouring.

[0041] By setting up a laser rangefinder 15, the distance between the bottom of the material distribution bin 4 and the concrete pouring surface is measured. Once the preset distance is reached, the hoisting equipment above ground stops lowering, thereby ensuring the discharge height of the material entering the bin chute 7.

[0042] A method for pouring concrete for a vertical shaft pressure steel pipe external casing includes the following steps:

[0043] Step 1: Concrete is poured into the hoisting tank through the chute and pipe. The hoisting equipment on the surface lifts the concrete hoisting tank 1 to the working face. The concrete hoisting tank 1 is lifted above the pressure steel pipe. The distance between the bottom of the material distribution bin 4 and the concrete pouring working face is measured by the laser rangefinder 15. After the preset distance is reached, the hoisting equipment on the surface stops lifting.

[0044] Step 2: The telescopic mechanism 8 extends until its end is supported on the well wall 17 to support the concrete tank 1.

[0045] Step 3: Open the valve of the discharge port of concrete bucket 1, and the concrete flows into the distribution bin 4. Drive motor 5 drives the distribution bin 4 to rotate 180° back and forth, so that the concrete is evenly poured to the outside of the steel pipe, realizing the concrete pouring into the bin.

[0046] When the concrete flow meter 9 on both sides of the inlet chute 7 measures a deviation in the concrete flow data, the rotary motor 12 is driven to rotate the regulating plate 10. The tilt direction of the regulating plate 10 is adjusted until the concrete flow data measured by the concrete flow meter 9 on both sides are equal, thereby adjusting the speed of concrete outflow and making the concrete surface energy on both sides rise synchronously, improving the pouring quality and pouring speed.

[0047] Step 4: The above-ground lifting equipment hoists the concrete tank 1, the telescopic mechanism 8 retracts, the support for the concrete tank 1 is released, the above-ground lifting equipment raises the height of the concrete tank 1, and the pressure steel pipe welding construction continues. After the pressure steel pipe stage construction is completed, steps 1 to 3 are repeated until all concrete pouring is completed.

Claims

1. A concrete encasement pouring device for a shaft pressure steel pipe, characterized by, The system includes a concrete hopper (1), the bottom of which is connected to the inner ring of a turntable bearing (3) via a connecting frame (2). The turntable bearing (3) is arranged around the discharge port of the concrete hopper (1). The top of the distribution bin (4) is connected to the bottom of the outer ring gear of the turntable bearing (3). A drive motor (5) is provided on the connecting frame (2). The output end of the drive motor (5) is provided with a drive gear (6) that meshes with the outer ring gear of the turntable bearing (3). Two sets of inlet chutes (7) are provided on the side wall of the distribution bin (4). The discharge port of the inlet chutes (7) is located between the pressure steel pipe (16) and the well wall (17). The chute (7) is equipped with a concrete flow meter (9), and the bottom of the distribution silo (4) is equipped with an adjustment plate (10). The upper side of the adjustment plate (10) is inclined. The adjustment plate (10) is installed in the distribution silo (4) by rotating through a bearing. The bottom of the adjustment plate (10) is equipped with a drive shaft (11). A rotary motor (12) is provided on one side of the distribution silo (4). The rotary motor (12) is connected to the drive shaft (11) through a transmission mechanism. It can drive the rotary motor (12) to rotate the adjustment plate (10) and adjust the tilt direction of the adjustment plate (10) until the concrete flow data measured by the concrete flow meters (9) on both sides are equal.

2. The device for pouring concrete outside the pressure steel tube of the vertical shaft according to claim 1, characterized in that, The concrete hopper (1) is provided with several telescopic mechanisms (8) on its outside. During pouring, the telescopic mechanisms (8) are supported on the well wall (17).

3. The concrete pouring device for the outer casing of a vertical shaft pressure steel pipe according to claim 2, wherein the telescopic mechanism (8) is a hydraulic cylinder.

4. The device for pouring concrete outside the pressure steel tube of the vertical shaft according to claim 2, characterized in that, The transmission mechanism includes a drive wheel (13) located at the output end of the rotary motor (12) and a driven wheel (14) located on the drive shaft (11). The drive wheel (13) and the driven wheel (14) are driven by a belt.

5. The device for pouring concrete outside the pressure steel tube of the vertical shaft according to claim 4, characterized in that, A laser rangefinder (15) is installed at the bottom of the material distribution bin (4).

6. The method of pouring a concrete encasement for a shaft pressure steel pipe of claim 5, wherein, Includes the following steps: Step 1: Pour concrete into the hoisting tank through the chute and pipe. The hoisting equipment on the surface lifts the concrete hoisting tank (1) to the working face and lifts the concrete hoisting tank (1) above the pressure steel pipe. After reaching the preset distance, the hoisting equipment on the surface stops lifting. Step 2: The telescopic mechanism (8) extends until its end is supported on the well wall (17) to support the concrete tank (1); Step 3: Open the valve of the discharge port of the concrete hoist (1), and the concrete flows into the distribution bin (4). Drive the motor (5) to drive the distribution bin (4) to rotate 180° back and forth, so that the concrete is evenly poured to the outside of the steel pipe, and the concrete is poured into the bin. Step 4: The hoisting equipment on the well lifts the concrete tank (1), the telescopic mechanism (8) retracts, the support for the concrete tank (1) is released, the hoisting equipment on the well raises the height of the concrete tank (1), and the pressure steel pipe welding construction continues. After the pressure steel pipe stage construction is completed, steps one to three are repeated until all concrete pouring is completed.

7. The method of pouring a concrete encasement for a shaft pressure steel pipe of claim 6, wherein, In step one, the distance between the bottom of the material distribution bin (4) and the concrete pouring surface is measured by a laser rangefinder (15).

8. The method of pouring a concrete encasement for a shaft pressure steel pipe of claim 6, wherein, In the third step, when the concrete flow data measured by the concrete flow meters (9) on the two sides of the stock bin chute (7) deviates, the rotary motor (12) can be driven to rotate the adjusting disc (10), adjust the tilting direction of the adjusting disc (10), and until the concrete flow data measured by the concrete flow meters (9) on the two sides is equivalent.

Images