Concrete face rockfill dam face template traction device

Abstract

The invention discloses a concrete face rockfill dam face formwork traction device, and relates to the technical field of slip form traction equipment. Comprising a first winch and a second winch, wherein the first winch is matched with a first cable; the first supporting frame is provided with a first supporting roller, an adjusting roller and a second supporting roller, the first supporting roller, the adjusting roller and the second supporting roller are used for tensioning the first cable, and the height of the adjusting roller can be adjusted; the first supporting roller, the adjusting roller and the second supporting roller are sequentially arranged at intervals in the length direction of the first cable. The second winch is matched with a second cable rope; the second supporting frame is provided with a third supporting roller, and the third supporting roller is used for tensioning the second cable; and the balance control assembly can control the height of the adjusting roller according to the longitudinal inclination angle of the slip form. Large longitudinal inclination of the slip form can be prevented.

Description

Technical Field

[0001] The invention relates to the technical field of slipform traction equipment, and in particular to a concrete panel rockfill dam panel formwork traction device. Background Art

[0002] The core structure of the concrete face rockfill dam is composed of a rockfill dam body and a thin layer of concrete face. The rockfill dam body is composed of piled up crushed stone, rock, gravel and other materials, which plays the role of supporting the dam and bearing water pressure, and has good seismic resistance, adaptability and stability; while the concrete face is usually composed of a thin layer of concrete slabs, which is poured on the surface of the rockfill dam body, and plays the role of anti-seepage, protection and increasing the stability of the dam body. It is suitable for construction in complex geological environments such as mountainous areas and canyons, and is usually used in large and medium-sized reservoirs, water supply, irrigation, flood control and other projects.

[0003] In existing water conservancy projects, trackless sliding formwork is usually used to pour the concrete panels of rockfill dams, that is, after installing copper water stop plates on the two side walls of the pouring area of ​​the pouring surface (water-facing surface) of the dam, the side formwork (a steel-wood composite structure, and the spacing between the two side forms is usually greater than 10 meters) is installed, and two winches are installed at intervals on the top of the dam body to hang the two ends of the sliding formwork through the two winches so that the sliding formwork can move on the side formwork. However, the two winches are directly connected to the sliding formwork, and the two winches are controlled by an adaptive control system to move synchronously and at the same speed. However, in the process of driving the cable drum to rotate, the winch has inconsistent cable winding lengths at both ends due to the difference in wiring, and the cable is long (the hanging part can reach more than 100 meters), which causes the sliding formwork to tilt during the upward movement. After the sliding formwork tilts, the suspended section of one end of the sliding formwork on the side formwork is shortened. In addition, during the concrete pouring process, the concrete floats on the slipform. Therefore, when the buoyancy of the concrete acts on the short suspended end of the slipform with a larger inclination angle, this end is prone to "mold run". Summary of the invention

[0004] In view of the technical problem that the existing concrete panel rockfill dam is prone to tilt during the lifting process, the present invention provides a concrete panel rockfill dam panel formwork traction device, which can improve the situation that the cable winding at both ends of the sliding form is not synchronous, prevent the sliding form from having a large longitudinal tilt, thereby avoiding the "mold running" situation, so as to ensure the casting quality of the concrete panel rockfill dam panel.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides a traction device for a concrete panel rockfill dam panel formwork, comprising: a first winch, the first winch is adapted to be equipped with a first cable; a first support frame, the first support frame is provided with a first support roller, an adjusting roller and a second support roller, the first support roller, the adjusting roller and the second support roller are used to stretch the first cable, the height of the adjusting roller is adjustable, and the first support roller, the adjusting roller and the second support roller are sequentially spaced along the length direction of the first cable; a second winch, the second winch is adapted to be equipped with a second cable; a second support frame, the second support frame is provided with a third support roller, the third support roller is used to stretch the second cable; and a balance control component, the balance control component can control the height of the adjusting roller according to the longitudinal inclination angle of the sliding formwork.

[0007] The concrete panel rockfill dam panel formwork traction device provided by the present invention comprises a first winch, a first support frame, a second winch, a second support frame and a balance control assembly, wherein the first winch is adapted to be equipped with a first cable, the second winch is adapted to be equipped with a second cable, the first support frame is provided with a first support roller, an adjustment roller and a second support roller, the height of the adjustment roller can be adjusted, the first cable is stretched on the first support roller, the adjustment roller and the second support roller, the second support frame is provided with a third support roller, the second cable is stretched on the third support roller, and the balance control assembly can control the height of the adjustment roller according to the longitudinal inclination angle of the sliding form. Thus, when in use, the first winch and the second winch are installed at intervals at the installation station corresponding to the top of the rockfill dam, and the first support frame and the second support frame are installed corresponding to the first winch and the second winch respectively, and then the first cable is connected to one end of the sliding form and the second cable is connected to the other end of the sliding form, so as to slide and lift the sliding form through the first winch and the second winch.

[0008] In the process of lifting the slipform by the first winch and the second winch, the balance control component can control the height of the adjusting roller according to the longitudinal inclination angle of the slipform, so as to adjust the length of the first cable suspended on the water-facing surface of the dam body by changing the height of the adjusting roller, so as to make the lengths of the first cable and the second cable suspended on the water-facing surface of the dam body match, thereby avoiding a large longitudinal inclination of the slipform.

[0009] Therefore, the concrete panel rockfill dam panel formwork traction device provided by the present invention can improve the situation where the cable winding at both ends of the sliding form is not synchronized, prevent the sliding form from having a large longitudinal tilt, thereby avoiding the "mold running" situation, and ensuring the casting quality of the concrete panel rockfill dam panel.

[0010] In an optional embodiment of the present application, the first support frame is equipped with a hydraulic jack, and the hydraulic jack is used to lift the adjusting roller to facilitate adjustment of the height of the adjusting roller.

[0011] In an optional embodiment of the present application, the balancing control assembly includes: a balancing cylinder, which is installed in parallel on the sliding form in a working state, and one end of the balancing cylinder is hinged to the sliding form and the other end is hinged to the first cable in the working state; an oil inlet control valve, which is connected in series between the oil pressure chamber of the hydraulic jack and the oil outlet end of the hydraulic pump station, and the oil inlet control valve is linked to the balancing cylinder; an oil drain control valve, which is connected in series between the oil pressure chamber of the hydraulic jack and the oil storage tank, and the oil drain control valve is linked to the balancing cylinder; wherein, when the balancing cylinder is tilted downward, the balancing cylinder drives the oil drain control valve to open, and when the balancing cylinder is tilted upward, the balancing cylinder drives the oil inlet control valve to open, so as to ensure that the balancing control assembly can control the height of the adjusting roller according to the longitudinal inclination angle of the sliding form.

[0012] In an optional embodiment of the present application, the hydraulic jacking device includes: a lifting cylinder; a lifting piston, which is arranged in the lifting cylinder and adapted to the inner cavity of the lifting cylinder, and the lifting piston divides the inner cavity of the lifting cylinder into an oil pressure cavity and an active cavity; a lifting rod, one end of which is passed through the active cavity and fixedly connected to the lifting piston, and the other end of the lifting rod is transmission-connected to the adjusting roller to ensure that the hydraulic jacking device can be extended and retracted under the control of the balance control component.

[0013] In an optional embodiment of the present application, the balancing cylinder is adapted to be equipped with a mounting rod, one end of which is hinged to the balancing cylinder and the other end of which is used for fixed connection with the sliding form, so as to ensure that the balancing cylinder can tilt synchronously with the sliding form.

[0014] In an optional embodiment of the present application, the balancing cylinder includes: a balancing cylinder body; a balancing piston, the balancing piston is arranged in the balancing cylinder body, and the balancing piston is adapted to the inner cavity of the balancing cylinder body and is insulated from the balancing cylinder body, both ends of the balancing piston are provided with conductive contacts, the balancing piston divides the inner cavity of the balancing cylinder body into an oil leakage control cavity and a lifting control cavity; a balancing control rod, one end of the balancing control rod is passed through the oil leakage control cavity and is fixedly connected to the lifting piston, and the other end of the balancing control rod is connected to the first cable Hinged; an oil leakage moving contact piece, which is insulated and installed in the oil leakage control cavity, and can move and automatically reset along the axial direction of the balancing cylinder body, and the oil leakage moving contact piece is electrically connected to the oil leakage control valve; an oil inlet moving contact piece, which is insulated and installed in the jacking control cavity, and can move and automatically reset along the axial direction of the balancing cylinder body, and the oil inlet moving contact piece is electrically connected to the oil inlet control valve to ensure that the balancing cylinder can drive the corresponding oil inlet control valve and the oil leakage control valve to make corresponding actions according to its own inclination state.

[0015] In an optional embodiment of the present application, the oil inlet control valve is a pilot solenoid valve, which ensures that the oil inlet control valve can perform corresponding actions according to the tilt state of the balance cylinder.

[0016] In an optional implementation of the present application, the oil leakage control valve is a pilot solenoid valve, which ensures that the oil leakage control valve can perform corresponding actions according to the tilt state of the balance cylinder.

[0017] In an optional embodiment of the present application, it also includes a sliding frame, which is slidably connected to the first support frame; the adjusting roller is installed on the sliding frame; the first support roller and the second support roller are symmetrically arranged with respect to the sliding direction of the sliding frame to ensure that the adjusting roller has sufficient stability during the process of adjusting the height of the adjusting roller.

[0018] In an optional embodiment of the present application, the first support roller, the adjusting roller, the second support roller and the third support roller are all grooved rollers to prevent the cable from slipping off the corresponding roller bodies.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] The concrete panel rockfill dam panel formwork traction device provided by the present invention comprises a first winch, a first support frame, a second winch, a second support frame and a balance control component, the first winch is adapted to be equipped with a first cable, the second winch is adapted to be equipped with a second cable, the first support frame is provided with a first support roller, an adjusting roller and a second support roller, the height of the adjusting roller can be adjusted, the first cable is stretched on the first support roller, the adjusting roller and the second support roller, the second support frame is provided with a third support roller, the second cable is stretched on the third support roller, the balance control component can control the height of the adjusting roller according to the longitudinal inclination angle of the sliding form, in the process of the first winch and the second winch lifting the sliding form, the balance control component can control the height of the adjusting roller according to the longitudinal inclination angle of the sliding form, so as to adjust the length of the first cable suspended on the water-facing surface of the dam body by changing the height of the adjusting roller, so that the lengths of the first cable and the second cable suspended on the water-facing surface of the dam body are adapted, and the sliding form is prevented from being longitudinally tilted at a large angle, thereby avoiding the situation of "running the formwork", so as to ensure the casting quality of the concrete panel rockfill dam panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] In the attached picture:

[0023] Figure 1 It is a schematic diagram of the top view of the structure of the concrete panel rockfill dam panel formwork traction device according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic structural diagram of a first support frame according to an embodiment of the present invention;

[0025] Figure 3 It is a structural schematic diagram of a hydraulic jacking device according to an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the control principle of a balance control component according to an embodiment of the present invention;

[0027] Figure 5 It is a schematic structural diagram of a balancing cylinder according to an embodiment of the present invention.

[0028] Marks and corresponding parts names in the attached drawings:

[0029] 10-first winch, 11-first cable, 20-first support frame, 21-first support roller, 22-adjusting roller, 23-second support roller, 24-sliding frame, 30-second winch, 31-second cable, 40-second support frame, 41-third support roller, 50-hydraulic jacking device, 51-jacking cylinder, 52-jacking piston, 53-oil pressure chamber, 54-movable chamber, 55-jacking rod, 60-balancing cylinder, 61-mounting rod, 62-balancing cylinder, 63-balancing piston, 64-oil leakage control chamber, 65-jacking control chamber, 66-balancing control rod, 67-oil leakage moving contact piece, 68-oil inlet moving contact piece, 70-oil inlet control valve, 80-oil leakage control valve. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0031] In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or is the orientation or positional relationship in which the device of the application is usually placed when in use, or is the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. At the same time, the terms "set", "install", "connect", and "connect" should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example

[0033] Combination Figure 1 and Figure 2 The present embodiment provides a concrete panel rockfill dam panel formwork traction device, comprising: a first winch 10, wherein the first winch 10 is adapted to be equipped with a first cable 11; a first support frame 20, wherein the first support frame 20 is provided with a first support roller 21, an adjusting roller 22 and a second support roller 23, wherein the first support roller 21, the adjusting roller 22 and the second support roller 23 are used to stretch the first cable 11, wherein the height of the adjusting roller 22 is adjustable, and the first support roller 21, the adjusting roller 22 and the second support roller 23 are sequentially spaced along the length direction of the first cable 11; a second winch 30, wherein the second winch 30 is adapted to be equipped with a second cable 31; a second support frame 40, wherein the second support frame 40 is provided with a third support roller 41, wherein the third support roller 41 is used to stretch the second cable 31; and a balance control component, wherein the balance control component can control the height of the adjusting roller 22 according to the longitudinal inclination angle of the sliding form.

[0034] Specifically, the first support frame 20 is installed with a hydraulic jack 50 , and the hydraulic jack 50 is used to jack up the adjusting roller 22 so as to adjust the height of the adjusting roller 22 .

[0035] Combination Figure 3 The hydraulic jacking device 50 includes: a jacking cylinder 51; a jacking piston 52, wherein the jacking piston 52 is arranged in the jacking cylinder 51, and the jacking piston 52 is adapted to the inner cavity of the jacking cylinder 51, and the jacking piston 52 divides the inner cavity of the jacking cylinder 51 into an oil pressure cavity 53 and an active cavity 54; a jacking rod 55, wherein one end of the jacking rod 55 is passed through the active cavity 54 and is fixedly connected to the jacking piston 52, and the other end of the jacking rod 55 is transmission-connected to the adjusting roller 22 to ensure that the hydraulic jacking device 50 can be extended and retracted under the control of the balance control component.

[0036] Combination Figure 2It can be understood that the present embodiment further includes a sliding frame 24, which is slidably connected to the first support frame 20; the adjusting roller 22 is mounted on the sliding frame 24, and the sliding frame 24 is transmission-connected (hinged or fixedly connected) to the lifting rod 55 of the hydraulic lifter 50; the first support roller 21 and the second support roller 23 are symmetrically arranged with respect to the sliding direction of the sliding frame 24 to ensure that the adjusting roller 22 has sufficient stability during the process of adjusting the height of the adjusting roller 22.

[0037] Generally speaking, the first support roller 21, the adjusting roller 22, the second support roller 23 and the third support roller 41 are all grooved rollers to prevent the cable from slipping off the corresponding roller bodies.

[0038] Combination Figure 4 The balancing control component includes: a balancing cylinder, which is installed in parallel on the sliding form in a working state, and one end of the balancing cylinder is hinged to the sliding form and the other end is hinged to the first cable 11 in a working state; an oil inlet control valve 70, which is connected in series between the oil pressure chamber 53 of the hydraulic jack 50 and the oil outlet end of the hydraulic pump station, and the oil inlet control valve 70 is linked to the balancing cylinder; an oil leakage control valve 80, which is connected in series between the oil pressure chamber 53 of the hydraulic jack 50 and the oil storage tank, and the oil leakage control valve 80 is linked to the balancing cylinder; wherein, when the balancing cylinder is tilted downward, the balancing cylinder drives the oil leakage control valve 80 to open, and when the balancing cylinder is tilted upward, the balancing cylinder drives the oil inlet control valve 70 to open, so as to ensure that the balancing control component can control the height of the adjusting roller 22 according to the longitudinal inclination angle of the sliding form.

[0039] In this embodiment, the balancing cylinder is equipped with a mounting rod 61, one end of which is hinged to the balancing cylinder and the other end is used for fixed connection with the sliding form, so as to ensure that the balancing cylinder can tilt synchronously with the sliding form.

[0040] Combination Figure 5The balancing cylinder comprises: a balancing cylinder body 62; a balancing piston 63, wherein the balancing piston 63 is arranged in the balancing cylinder body 62, and the balancing piston 63 is adapted to the inner cavity of the balancing cylinder body 62 and insulated from the balancing cylinder body 62, and conductive contacts are arranged at both ends of the balancing piston 63, and the balancing piston 63 divides the inner cavity of the balancing cylinder body 62 into an oil leakage control cavity 64 and a lifting control cavity 65; a balancing control rod 66, wherein one end of the balancing control rod 66 is passed through the oil leakage control cavity 64 and is fixedly connected to the lifting piston 52, and the other end of the balancing control rod 66 is hinged to the first cable 11; a leakage The oil-actuated contact piece 67 is insulated and installed in the oil leakage control chamber 64, and can move and automatically reset along the axial direction of the balancing cylinder body 62, and the oil leakage contact piece 67 is electrically connected to the oil leakage control valve 80; the oil-inlet movable contact piece 68 is insulated and installed in the lifting control chamber 65, and the oil-inlet movable contact piece 68 can move and automatically reset along the axial direction of the balancing cylinder body 62, and the oil-inlet movable contact piece 68 is electrically connected to the oil-inlet control valve 70 to ensure that the balancing cylinder can drive the corresponding oil-inlet control valve 70 and the oil leakage control valve 80 to perform corresponding actions according to its own tilt state.

[0041] Specifically, a first push spring is arranged in the oil leakage control chamber 64, one end of the first push spring is fixedly connected to one end of the balancing cylinder body 62 facing the first cable 11, and the other end is fixedly connected to the oil leakage movable contact piece 67. At the same time, the first push spring and the oil inlet contact piece are both sleeved outside the balancing control rod 66 at intervals. When the first push spring is in a natural state, the oil leakage movable contact piece 67 is arranged at intervals with the end part corresponding to the balancing piston 63. Correspondingly, a second push spring is arranged in the oil inlet control chamber, one end of the second push spring is fixedly connected to one end of the balancing cylinder body 62 facing the mounting rod 61, and the other end is fixedly connected to the oil inlet movable contact piece 68. When the second push spring is in a natural state, the oil inlet movable contact piece 68 is arranged at intervals with the end part corresponding to the balancing piston 63.

[0042] Because the balancing piston 63 is adapted to the balancing cylinder 62, one end of the balancing control rod 66 is inserted into the oil leakage control chamber 64 and is fixedly connected to the lifting piston 52, and the other end is hinged to the first cable 11, and one end of the mounting rod 61 is hinged to the balancing cylinder, and the other end is fixedly connected to the sliding form; when the length of the first cable 11 suspended on the water-facing surface of the dam body is greater than the second cable 31, the sliding form tilts downward, and the mounting rod 61 tilts toward the first cable 11 to drive the balancing cylinder to tilt downward. At this time, the hinge between the balancing control rod 66 and the first cable 11 is connected to the balancing cylinder. The distance between the cylinder body 62 and the hinge of the mounting rod 61 is shortened, thereby driving the balancing control rod 66 through the first cable 11 to push the balancing piston 63 toward the mounting rod 61, so that the balancing piston 63 contacts the oil inlet movable contact piece 68, and then turns on the power of the oil inlet control valve 70, driving the oil inlet control valve 70 to open, so as to input the hydraulic oil into the oil pressure chamber 53 of the hydraulic jacking device 50, and then push the sliding frame 24 upward, increase the height of the adjusting roller 22, and finally shorten the length of the first cable 11 suspended on the water-facing surface of the dam body, and adjust the smooth mold.

[0043] When the length of the first cable 11 suspended on the water-facing surface of the dam body is less than the second cable 31, the sliding mold tilts upward and the mounting rod 61 tilts toward the second cable 31, so as to drive the balancing cylinder to tilt upward. At this time, the distance between the hinge of the balancing control rod 66 and the first cable 11 and the hinge of the balancing cylinder 62 and the mounting rod 61 becomes longer, thereby driving the balancing control rod 66 through the first cable 11 to pull the balancing piston 63 toward the first cable 11, so that the balancing piston 63 contacts the oil leakage movable contact piece 67, and then turns on the power supply of the oil leakage control valve 80, driving the oil leakage control valve 80 to open, so as to discharge the hydraulic oil in the oil pressure chamber 53 of the hydraulic jacking device 50 into the oil storage tank, and push the sliding frame 24 to slide downward under the lateral pressure of the first cable 11 to lower the height of the adjusting roller 22, so as to finally make the first cable 11 hang on the water-facing surface of the dam body for a certain extension, thereby adjusting the sliding mold.

[0044] Thus, the power supply of the oil inlet control valve 70 and the oil discharge control valve 80 is controlled by the tilting of the balance cylinder. There is no force transmission between the balance cylinder and the oil inlet control valve 70 and the oil discharge control valve 80. The structure is simple and only needs to be connected by a cable. There is no delay and the suspension length of the first cable 11 can be adjusted in real time according to the tilt angle of the sliding form. Compared with the use of hydraulic linkage, it can avoid false triggering caused by deformation of the cross section of the oil pipeline and temperature changes in the construction environment; compared with the use of wireless communication connection, it can avoid electromagnetic interference (during the construction process, intercom communication is required, and the valve is set close to the winch).

[0045] It can be understood that the oil inlet control valve 70 is a pilot solenoid valve, so that after the oil inlet control valve 70 is energized, the valve core of the oil inlet control valve 70 is driven by the electromagnetic driving force and the hydraulic pressure of the hydraulic oil pump station, and can drive its valve core to move and connect the hydraulic jack 50 and the hydraulic oil pump station, thereby ensuring that the oil inlet control valve 70 can make corresponding actions according to the tilt state of the balance cylinder.

[0046] Similarly, the oil leakage control valve 80 is a pilot solenoid valve, so that after the oil leakage control valve 80 is energized, the valve core of the oil leakage control valve 80 is driven by the electromagnetic driving force and the liquid pressure in the oil pressure chamber 53 of the hydraulic jack 50, and can drive its valve core to move to connect the hydraulic jack 50 and the oil storage tank, ensuring that the oil leakage control valve 80 can perform corresponding actions according to the tilt state of the balance cylinder.

[0047] In summary, the concrete panel rockfill dam panel formwork traction device provided in the present embodiment includes a first winch 10, a first support frame 20, a second winch 30, a second support frame 40 and a balance control component. The first winch 10 is adapted to be equipped with a first cable 11, and the second winch 30 is adapted to be equipped with a second cable 31. The first support frame 20 is provided with a first support roller 21, an adjusting roller 22 and a second support roller 23, and the height of the adjusting roller 22 can be adjusted. The first cable 11 is stretched on the first support roller 21, the adjusting roller 22 and the second support roller 23. The second support frame 40 is provided with a third support roller 41, and the second cable 31 is stretched on the third support roller 41. The balance control component can control the height of the adjusting roller 22 according to the longitudinal inclination angle of the sliding formwork. The balance control component includes a balance cylinder, an oil inlet control valve 70 and an oil discharge control valve 80. When the balance cylinder is tilted, the oil inlet control valve 70 can be controlled to open or the oil discharge control valve 80 can be controlled to open, thereby controlling the height of the adjusting roller 22.

[0048] When in use, the first winch 10 and the second winch 30 are installed at intervals at the installation stations corresponding to the top of the rockfill dam, and the first support frame 20 and the second support frame 40 are installed corresponding to the first winch 10 and the second winch 30 respectively, and then the first cable 11 is connected to one end of the slipform, and the second cable 31 is connected to the other end of the slipform, so as to slide and lift the slipform through the first winch 10 and the second winch 30.

[0049] During the process of the first winch 10 and the second winch 30 lifting the sliding form, if the length of the first cable 11 suspended on the water-facing surface of the dam body is greater than that of the second cable 31, the sliding form tilts downward and the mounting rod 61 tilts toward the first cable 11, so as to drive the balancing cylinder to tilt downward. At this time, the distance between the hinge of the balancing control rod 66 and the first cable 11 and the hinge of the balancing cylinder 62 and the mounting rod 61 is shortened, so that the balancing control rod 66 is driven by the first cable 11 to push the balancing piston 63 toward the mounting rod 61, so that the balancing piston 63 contacts the oil inlet movable contact piece 68, thereby conducting the oil inlet. The power supply of the oil control valve 70 drives the oil inlet control valve 70 to open, so as to input the hydraulic oil into the oil pressure chamber 53 of the hydraulic jack 50, and then push the sliding frame 24 upward, increase the height of the adjusting roller 22, and finally shorten the length of the first cable 11 suspended on the water-facing surface of the dam body (one end of the first cable 11 is connected to the slipform, and the other end is wound on the first winch 10. Therefore, when the height of the adjusting roller 22 changes, the length of the first cable 11 section between the first support roller 21 and the second support roller 23 will change, thereby adjusting the length of the first cable 11 hanging on the dam), and adjust the slipform.

[0050] If the length of the first cable 11 suspended on the water-facing surface of the dam body is less than the second cable 31, the slide mold tilts upward and the mounting rod 61 tilts toward the second cable 31, so as to drive the balancing cylinder to tilt upward. At this time, the distance between the hinge of the balancing control rod 66 and the first cable 11 and the hinge of the balancing cylinder 62 and the mounting rod 61 becomes longer, thereby driving the balancing control rod 66 through the first cable 11 to pull the balancing piston 63 toward the first cable 11, so that the balancing piston 63 contacts the oil leakage movable contact piece 67, and then turns on the power supply of the oil leakage control valve 80, driving the oil leakage control valve 80 to open, so as to discharge the hydraulic oil in the oil pressure chamber 53 of the hydraulic jacking device 50 into the oil storage tank, and push the sliding frame 24 to slide downward under the lateral pressure of the first cable 11 to lower the height of the adjusting roller 22, so as to finally make the first cable 11 hang on the water-facing surface of the dam body for a certain length, thereby adjusting the slide mold.

[0051] Therefore, by adjusting the height of the roller 22, the length of the first cable 11 suspended on the water surface of the dam body is adjusted, so that the lengths of the first cable 11 and the second cable 31 suspended on the water surface of the dam body are matched, avoiding a large angle of longitudinal tilt of the sliding form.

[0052] In summary, the concrete panel rockfill dam panel formwork traction device provided in this embodiment can improve the situation where the cables at both ends of the sliding form are not reeled in synchronously, prevent the sliding form from having a large longitudinal tilt, and thus avoid the "form running" situation, so as to ensure the casting quality of the concrete panel rockfill dam panel.

[0053] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A concrete panel rockfill dam panel formwork traction device, characterized in that: include: A first hoist (10), wherein the first hoist (10) is adapted to be equipped with a first cable (11); A first support frame (20), wherein the first support frame (20) is provided with a first support roller (21), an adjusting roller (22) and a second support roller (23), wherein the first support roller (21), the adjusting roller (22) and the second support roller (23) are used for stretching the first cable (11), the height of the adjusting roller (22) is adjustable, and the first support roller (21), the adjusting roller (22) and the second support roller (23) are sequentially spaced along the length direction of the first cable (11); a second hoist (30), wherein the second hoist (30) is adapted to be equipped with a second cable (31); A second support frame (40), wherein the second support frame (40) is provided with a third support roller (41), and the third support roller (41) is used for tensioning the second cable (31); A balance control component is provided, wherein the balance control component can control the height of the adjustment roller (22) according to the longitudinal inclination angle of the sliding mold.

2. The concrete panel rockfill dam panel formwork traction device according to claim 1 is characterized in that: The first support frame (20) is equipped with a hydraulic lifter (50), and the hydraulic lifter (50) is used to lift the adjusting roller (22).

3. The concrete panel rockfill dam panel formwork traction device according to claim 2 is characterized in that: The balance control component comprises: A balancing cylinder (60), wherein the balancing cylinder (60) is installed in parallel on the sliding form in a working state, and one end of the balancing cylinder (60) is hinged to the sliding form and the other end is hinged to the first cable (11) in a working state; An oil inlet control valve (70), the oil inlet control valve (70) is connected in series between the oil pressure chamber (53) of the hydraulic jack (50) and the oil outlet end of the hydraulic pump station, and the oil inlet control valve (70) is linked to the balance cylinder (60); An oil leakage control valve (80), the oil leakage control valve (80) is connected in series between the oil pressure chamber (53) of the hydraulic jack (50) and the oil storage tank, and the oil leakage control valve (80) is linked to the balance cylinder (60); When the balancing cylinder (60) is tilted downward, the balancing cylinder (60) drives the oil leakage control valve (80) to open, and when the balancing cylinder (60) is tilted upward, the balancing cylinder (60) drives the oil inlet control valve (70) to open.

4. The concrete panel rockfill dam panel formwork traction device according to claim 3 is characterized in that: The hydraulic jack (50) comprises: Lifting cylinder (51); A lifting piston (52), wherein the lifting piston (52) is disposed in the lifting cylinder (51), and the lifting piston (52) is adapted to the inner cavity of the lifting cylinder (51), and the lifting piston (52) divides the inner cavity of the lifting cylinder (51) into an oil pressure cavity (53) and a movable cavity (54); A lifting rod (55), one end of which is inserted into the movable cavity (54) and fixedly connected to the lifting piston (52), and the other end of which is drivingly connected to the adjusting roller (22).

5. The concrete panel rockfill dam panel formwork traction device according to claim 3 is characterized in that: The balancing cylinder (60) is adapted to be equipped with a mounting rod (61), one end of the mounting rod (61) is hinged to the balancing cylinder (60), and the other end is used for fixed connection with the sliding mold.

6. The concrete panel rockfill dam panel formwork traction device according to claim 5, characterized in that: The balancing cylinder (60) comprises: Balance cylinder (62); a balancing piston (63), the balancing piston (63) being arranged in the balancing cylinder (62), the balancing piston (63) being adapted to the inner cavity of the balancing cylinder (62) and being insulated from the balancing cylinder (62), both ends of the balancing piston (63) being provided with conductive contact sheets, and the balancing piston (63) dividing the inner cavity of the balancing cylinder (62) into an oil leakage control cavity (64) and a lifting control cavity (65); a balancing control rod (66), one end of which is inserted into the oil leakage control chamber (64) and fixedly connected to the lifting piston (52), and the other end of which is hinged to the first cable (11); an oil leakage movable contact piece (67), the oil leakage movable contact piece (67) being insulated and installed in the oil leakage control chamber (64), and being capable of moving along the axial direction of the balancing cylinder (62) and automatically resetting, the oil leakage movable contact piece (67) being electrically connected to the oil leakage control valve (80); An oil inlet movable contact piece (68), the oil inlet movable contact piece (68) is insulated and installed in the jacking control chamber (65), the oil inlet movable contact piece (68) can move along the axial direction of the balancing cylinder body (62) and automatically reset, and the oil inlet movable contact piece (68) is electrically connected to the oil inlet control valve (70).

7. The concrete panel rockfill dam panel formwork traction device according to claim 6 is characterized in that: The oil inlet control valve (70) is a pilot-operated solenoid valve.

8. The concrete panel rockfill dam panel formwork traction device according to claim 6, characterized in that: The oil leakage control valve (80) is a pilot-operated solenoid valve.

9. The concrete panel rockfill dam panel formwork traction device according to any one of claims 1 to 8, characterized in that: It also includes a sliding frame (24), wherein the sliding frame (24) is slidably connected to the first supporting frame (20); The adjusting roller (22) is mounted on the sliding frame (24); The first supporting roller (21) and the second supporting roller (23) are symmetrically arranged with respect to the sliding direction of the sliding frame (24).

10. The concrete panel rockfill dam panel formwork traction device according to claim 9, characterized in that: The first supporting roller (21), the adjusting roller (22), the second supporting roller (23) and the third supporting roller (41) are all grooved rollers.

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