Gravity dam slip form structure

Abstract

The invention relates to a gravity dam sliding formwork structure which comprises a shell, a sliding formwork and a sliding formwork, a positioning plate is arranged in the shell, and a plurality of threaded holes are formed in the positioning plate; the driving screw rods are arranged in the shell and are adjustable in height, part of the driving screw rods are in threaded connection with the interiors of the threaded holes, and part of the driving screw rods extend to the lower portion of the shell to form a driving section; the slip form bottom plate is arranged at the end parts of the plurality of driving sections and can be freely deformed; the driving motor is arranged in the shell, the driving motor is in driving connection with the driving screw rod, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of slipform construction, in particular to a gravity dam slipform structure. Background Art

[0002] Slipform construction technology is often used in dam construction, and a winch or a track is set above the dam to allow the slipform structure to slide along the surface of the dam. However, when encountering a curved dam, such as Figure 1 In the gravity dam structure, arc sections are formed at the top and bottom of the gravity dam. However, since the slipform itself cannot be deformed mechanically, the slipform can only meet the needs of flat concrete construction. The arc-shaped part can only be smoothed and plasticized manually, which has high labor costs, or a customized slipform must be used for re-construction, resulting in a long construction period. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a gravity dam slipform structure. According to the bending direction of the steel bar, by adjusting the length of the driving screw, the slipform bottom plate can change with the length of the driving screw to reduce labor costs.

[0004] The technical solution to achieve the above purpose is a gravity dam slipform structure, including:

[0005] A housing, wherein a positioning plate is disposed in the housing, and a plurality of threaded holes are formed on the positioning plate;

[0006] A plurality of height-adjustable driving screws are disposed on the housing, wherein a portion of the driving screws is threadedly connected to the threaded holes, and a portion of the driving screws extends below the housing to form a driving section;

[0007] A freely deformable sliding form bottom plate disposed at the ends of the plurality of driving sections; and

[0008] A driving motor is arranged in the housing, and the driving motor is drivingly connected to the driving screw.

[0009] Furthermore, a hexagonal clamping section is formed on the top of the driving screw rod, a transmission gear is externally connected to the hexagonal clamping section, and the driving motor is drivingly connected to the transmission gear.

[0010] Furthermore, the transmission gear is formed with a hexagonal hole corresponding to the hexagonal clamping section, and the hexagonal clamping section is penetrated through the hexagonal hole.

[0011] Furthermore, a plurality of the transmission gears are externally meshedly connected with a transmission chain, the drive motor is controllably connected with a drive gear, and the drive gear is meshedly connected with the transmission chain.

[0012] Furthermore, a freely rotatable limiting member is provided in the shell, and a clamping block is formed at the end of the limiting member corresponding to the teeth of the transmission gear. By rotating the limiting block, the clamping block is clamped between the teeth of the transmission gear.

[0013] Furthermore, a plurality of limiting rods are arranged at intervals between the positioning plate and the sliding form bottom plate.

[0014] Furthermore, a setting plate is provided in the shell, the setting plate is provided above the positioning plate, and the driving motor is provided on the setting plate.

[0015] Furthermore, a fixing block is fixed on the driving screw, and the fixing block is arranged above the setting plate.

[0016] Furthermore, a positioning nut is provided at a position on the top of the positioning plate corresponding to the threaded opening, and the driving screw is connected to the inner thread of the positioning nut.

[0017] Furthermore, an adjustment block is fixed on the sliding mold bottom plate, a sliding groove is formed on the adjustment block, a through hole is formed on the driving screw, and a limiting bolt is arranged between the sliding groove and the through hole.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] By adjusting the length of the driving screw, the sliding mold base plate can change with the length of the driving screw to reduce labor costs, and the driving gear is operated through a transmission chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a gravity dam structure in the prior art;

[0021] Figure 2 It is a structural schematic diagram of a gravity dam sliding form structure;

[0022] Figure 3 This is a connection effect diagram of a transmission gear and a drive motor of a gravity dam sliding form structure;

[0023] Figure 4 It is a structural schematic diagram of a slipform bottom plate of a gravity dam slipform structure;

[0024] Figure 5 This is a rendering of the use of a gravity dam slipform structure;

[0025] Legend: 1. Sliding form base plate; 11. Adjustment block; 2. Housing; 3. Transmission gear; 4. Transmission chain; 5. Driving motor; 6. Driving screw; 61. Hexagonal clamping section; 7. Setting plate; 8. Limit rod; 9. Positioning nut; 10. Limit piece. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] See also Figure 2 A gravity dam slipform structure comprises: a shell 2, a driving screw 6, a slipform base plate 1 and a driving motor 5, wherein a positioning plate is arranged in the shell 2, and a plurality of threaded holes are formed on the positioning plate; a plurality of driving screws 6 are arranged in the shell 2 and are height-adjustable, a portion of the driving screws 6 is threadedly connected in the threaded holes, and a portion of the driving screws 6 extends below the shell 2 to form a driving section; a freely deformable slipform base plate 1 is arranged at the ends of a plurality of the driving sections; and a driving motor 5 is arranged in the shell 2, and the driving motor 5 is driven and connected to the driving screws 6.

[0028] In the present invention, a preferred implementation is: after the gravity dam is cast, the shell 2 is set at the landslide position of the gravity dam to smooth the concrete surface of the gravity dam, and the shell 2 is moved by the track. When the concrete surface of the gravity dam needs to be raised or recessed, the drive motor 5 is started to make the drive section move toward or away from the shell 2, thereby driving the slipform bottom plate 1 to bulge or recess. The slipform bottom plate 1 can adapt to the surface of the gravity dam, and the drive screw 6 controls the distance by rotation, and can better ensure the pressure stability during the casting of the bottom plate, thereby avoiding pressure deformation of the bottom plate.

[0029] Furthermore, the sliding form base plate 1 can be made of a metal plate (such as iron sheet, etc.) with good deformation performance.

[0030] Furthermore, a hexagonal clamping section 61 is formed at the top of the driving screw 6, and a transmission gear 3 is connected to the outer shell of the hexagonal clamping section 61, and the driving motor 5 is drivingly connected to the transmission gear 3. When the driving motor 5 drives the transmission gear 3 to rotate, the hexagonal clamping section 61 is driven to rotate, thereby driving the driving screw 6 to rotate.

[0031] Further, the transmission gear 3 is formed with a hexagonal hole corresponding to the hexagonal clamping section 61, and the hexagonal hole is penetrated by the hexagonal clamping section 61. Preferably, when the driving screw 6 rotates, the hexagonal clamping section 61 slides up and down along the hexagonal hole.

[0032] Further, a plurality of the transmission gears 3 are externally meshedly connected with a transmission chain 4, and the drive motor 5 is controlled to be connected with a drive gear, and the drive gear is meshedly connected with the transmission chain 4. Preferably, when the drive motor 5 drives the drive gear to rotate, the drive gear drives the transmission chain 4 to rotate, thereby driving the transmission gear 3 to rotate.

[0033] Furthermore, the transmission chain 4 is sleeved on the transmission gear 3 on the driving screw rod 6 located in the same row, so as to facilitate the adjustment of the position of the same row of the sliding form base plate 1.

[0034] Furthermore, a freely rotatable stopper 10 is provided in the housing 2, and a clamping block is formed at the end of the stopper 10 corresponding to the teeth of the transmission gear 3, and the stopper block is rotated so that the clamping block is clamped between the teeth of the transmission gear 3. After the adjustment is completed, the clamping block can be clamped between the teeth of the transmission gear 3, thereby limiting the rotation of the transmission gear 3 to ensure the safety of the construction.

[0035] Furthermore, the limiting member 10 is driven by a transmission motor.

[0036] Furthermore, a plurality of limit rods 8 are arranged between the positioning plate and the slide form bottom plate 1. Preferably, the limit rods are arranged close to the corners of the slide form bottom plate, so as to ensure that when the driving screw slides upward or downward, the corners of the slide form bottom plate do not deform, so as to ensure that the slide form bottom plate can form an arc.

[0037] Furthermore, a setting plate 7 is provided in the housing 2 , and the setting plate 7 is provided above the positioning plate, and the driving motor 5 is provided on the setting plate 7 .

[0038] Furthermore, the setting plate 7 is formed with a through hole corresponding to the driving screw 6, and the driving screw 6 is inserted into the through hole.

[0039] Furthermore, a fixing block is fixed on the driving screw 6, and the fixing block is arranged above the setting plate 7. When the driving screw 6 slides downward, until the fixing block abuts against the setting plate 7, the driving screw 6 is prevented from continuing to slide, thereby preventing the sliding form bottom plate 1 from continuing to slide and causing excessive deformation of the sliding form bottom plate 1 and causing damage.

[0040] Furthermore, a positioning nut 9 is provided at the top of the positioning plate at a position corresponding to the threaded opening, and the driving screw 6 is connected to the inner thread of the positioning nut 9 .

[0041] Furthermore, an adjusting block 11 is fixed on the sliding form bottom plate 1 , a sliding groove is formed on the adjusting block 11 , a through hole is formed on the driving screw 6 , and a limiting bolt is arranged between the sliding groove and the through hole.

[0042] The following is an explanation of the use process of a gravity dam slipform structure of the present invention.

[0043] After the gravity dam is poured, the shell 2 is set at the landslide position of the gravity dam to smooth the concrete surface of the gravity dam. The shell 2 is moved by the track. When the concrete surface of the gravity dam needs to be raised or recessed, the drive motor 5 is started. The drive motor 5 drives the drive gear to rotate through the transmission chain 4, so that the drive section moves toward or away from the shell 2, thereby driving the slipform bottom plate 1 to bulge or recess. The slipform bottom plate 1 can adapt to the surface of the gravity dam. The drive screw 6 controls the distance by rotation, and can better ensure the pressure-bearing stability during the bottom plate pouring process to avoid pressure deformation of the bottom plate.

[0044] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A gravity dam sliding form structure, characterized in that: include: A housing, wherein a positioning plate is disposed in the housing, and a plurality of threaded holes are formed on the positioning plate; A plurality of height-adjustable driving screws are disposed on the housing, wherein a portion of the driving screws is threadedly connected to the threaded holes, and a portion of the driving screws extends below the housing to form a driving section; A freely deformable sliding form bottom plate disposed at the ends of a plurality of the driving sections; as well as A driving motor is arranged in the housing, and the driving motor is drivingly connected to the driving screw.

2. A gravity dam slipform structure according to claim 1, characterized in that: A hexagonal clamping section is formed on the top of the driving screw rod, a transmission gear is externally connected to the hexagonal clamping section, and the driving motor is drivingly connected to the transmission gear.

3. A gravity dam slipform structure according to claim 2, characterized in that: The transmission gear is formed with a hexagonal hole corresponding to the hexagonal clamping section, and the hexagonal clamping section is penetrated through the hexagonal hole.

4. The gravity dam slipform structure according to claim 2 is characterized in that: A plurality of the transmission gears are externally meshed and connected with a transmission chain, the drive motor is controlled and connected with a drive gear, and the drive gear is meshed and connected with the transmission chain.

5. A gravity dam slipform structure according to claim 4, characterized in that: A freely rotatable limiting member is arranged in the housing, and a clamping block is formed at the end of the limiting member corresponding to the teeth of the transmission gear. The limiting block is rotated so that the clamping block is clamped between the teeth of the transmission gear.

6. The gravity dam slipform structure according to claim 1 is characterized by: A plurality of limiting rods are arranged at intervals between the positioning plate and the sliding form bottom plate.

7. The gravity dam slipform structure according to claim 1 is characterized by: A setting plate is arranged in the shell, the setting plate is arranged above the positioning plate, and the driving motor is arranged on the setting plate.

8. The gravity dam slipform structure according to claim 7, characterized in that: A fixing block is fixed on the driving screw rod, and the fixing block is arranged above the setting plate.

9. The gravity dam slipform structure according to claim 1, characterized in that: A positioning nut is arranged at the top of the positioning plate at a position corresponding to the threaded opening, and the driving screw is connected to the inner thread of the positioning nut.

10. The gravity dam slipform structure according to claim 1, characterized in that: An adjusting block is fixed on the sliding mold bottom plate, a sliding groove is formed on the adjusting block, a through hole is formed on the driving screw, and a limiting bolt is arranged between the sliding groove and the through hole.

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