Wire take-up frame for prestressed steel strand finished bundles to be wound inwards

Abstract

The present invention discloses a wire take-up frame based on the inward coiling of finished bundles of prestressed steel strands; it includes a wire take-up rotating disc mechanism and a wire take-up guiding mechanism; wherein the wire take-up guiding mechanism is located on one side of the wire take-up rotating disc mechanism; the wire take-up guiding mechanism includes an operation platform, a guiding ring and a guiding ring adjustment mechanism; the guiding ring adjustment mechanism includes a guiding ring horizontal adjustment mechanism and a guiding ring height adjustment mechanism, wherein the guiding ring horizontal adjustment structure is installed on the upper surface of the operation platform; the guiding ring height adjustment mechanism is located on the side of the rotating disc, the guiding ring is installed at the lower end of the guiding ring height adjustment mechanism, and a roller is hinged to the bottom of the guiding ring. The present invention facilitates the pulling out of the front end of the finished bundle during the construction of threading the finished bundle, greatly improves the construction efficiency, and at the same time reduces the risk of personal injury.

Description

Technical Field

[0001] The invention belongs to the field of bridge prestressed product processing, and particularly relates to a wire coiling frame for inward coiling of prestressed steel strand finished bundles. Background Art

[0002] In recent years, with the development of the construction industry, prestressed concrete has been gradually popularized. Compared with traditional reinforced concrete, prestressed concrete has the advantages of high strength and material saving. The most advanced technology at present is the post-tensioning prestressed concrete technology with vacuum grouting. Its characteristics are as follows: first, concrete is poured, and metal or plastic corrugated pipes are buried in the concrete in advance. After the concrete reaches a certain strength, prestressed steel strands are pulled in the buried metal or plastic corrugated pipes, and then the prestressed steel strands are fixed on the components with anchor devices. Now, multiple steel strands are required in one duct. The traditional construction method is to adopt the single-strand threading method. In this way, since the steel strands are wound around each other in the duct, it is easy to cause too large actual stress deviation between the steel strands in the duct, resulting in the phenomena of tension breakage and premature failure.

[0003] To solve the above problems, the technology of prestressed steel strand finished bundles (abbreviated as "finished bundles") has emerged. It is to cut the steel strands in advance, then comb and braid multiple strands to form a whole finished bundle, and then push the whole bundle into the duct. During the processing of the finished bundle, there is a whole-bundle wire coiling link. The current wire coiling process is to fix the head of the finished bundle to the wire coiling disc, and then as the wire coiling disc rotates, the finished bundle will gradually coil outward. In this way, during the construction of the finished bundle, since the head of the finished bundle is wrapped inside and is not easily pulled out, it affects the construction efficiency. Moreover, during the process of pulling out the head of the finished bundle by machine, due to the large elasticity of the finished bundle, personal injuries may occur. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the invention provides a wire coiling frame for inward coiling of prestressed steel strand finished bundles, which can realize inward wire coiling from the outer layer and can route along the height at the same time.

[0005] The invention is realized as follows: a wire coiling frame for inward coiling of prestressed steel strand finished bundles; the wire coiling rotating disc mechanism is characterized in that it further includes a wire coiling guiding mechanism, and the wire coiling guiding mechanism is located on one side of the wire coiling rotating disc mechanism;

[0006] The wire coiling guiding mechanism includes an operation platform, a guiding ring and a guiding ring adjusting mechanism;

[0007] The guiding ring adjusting mechanism includes a guiding ring horizontal adjusting mechanism and a guiding ring height adjusting mechanism. The guiding ring horizontal adjusting structure is installed on the upper surface of the operation platform. The guiding ring height adjusting mechanism is located on the side of the turntable and is connected to the guiding ring horizontal adjusting mechanism through a vertical plate bracket. The guiding ring is installed at the lower end of the guiding ring height adjusting mechanism, and a roller is hinged to the bottom of the guiding ring.

[0008] In the above technical solution, preferably, the guiding ring horizontal adjusting mechanism includes two horizontal guide sleeves symmetrically installed on the operation platform. A horizontal guide rod is inserted into each horizontal guide sleeve. A vertical plate is connected to the horizontal guide rod near the turntable side, and a horizontal movement driving mechanism is fixedly installed on the vertical plate on the side of the horizontal guide sleeve.

[0009] In the above technical solution, preferably, the horizontal movement driving mechanism includes a transverse movement lead screw parallel to the horizontal guide rod. A transverse movement bevel gear seat is screwed onto the transverse movement lead screw. The bevel gear on the transverse movement bevel gear meshes with a transverse movement driving gear. The transverse movement driving gear is fixed on the output shaft of a transverse movement stepping motor. The transverse movement stepping motor is fixed on the operation platform through a transverse movement motor mounting plate.

[0010] In the above technical solution, preferably, a left limit plate is provided on the left side of the transverse movement bevel gear seat on the operation platform.

[0011] In the above technical solution, preferably, the guiding ring height adjusting mechanism includes two vertical guide sleeves symmetrically installed on the vertical plate bracket on the turntable side. A vertical guide rod is installed inside the vertical guide sleeve. The lower end of the vertical guide rod is fixedly connected to a guiding ring fixing plate. The lower surface of the fixed guiding ring is connected to the guiding ring. A guiding ring height adjusting driving mechanism is installed on the guiding ring fixing plate between the two vertical guide rods.

[0012] In the above technical solution, preferably, the guiding ring height adjusting driving mechanism includes a vertical lead screw perpendicular to the guiding ring fixing plate. A height adjusting bevel gear seat is installed on the vertical lead screw through thread fit. The bevel gear on the height adjusting bevel gear seat meshes with a height adjusting driving gear. The driving gear is fixed on the output shaft of a stepping motor. The stepping motor is fixedly installed on the vertical plate bracket through a fixing plate.

[0013] In the above technical solution, preferably, a lower limit plate is provided below the height adjusting bevel gear seat.

[0014] The wire take-up rotating disc mechanism includes vertically arranged frames evenly distributed in a circle and fixed on the ground, and a transverse frame connecting the vertically arranged frames. The transverse frame extends towards the center of the rotary disc, and a bearing seat is fixedly connected to the center of the transverse frame. A roller is installed on the upper part of each vertically arranged frame through a pin shaft, and the rotary disc is placed above the roller. A plurality of guard plates are fixedly arranged on the upper surface of the rotary disc along the circumferential direction, and a main shaft is fixed at the center of the rotary disc. The main shaft is connected to the bearing seat through a bearing. The bottom of the main shaft is connected to a rotary motor through a coupling.

[0015] Advantages and technical effects of the present invention: With the above technical solution, during the wire take-up process of the finished bundle, first pass the front end of the finished bundle through the guiding ring, then fix it to the outside of the rotary disc, and then drive the rotary motor to rotate. The finished bundle starts to rotate into a disc, and gradually move the guiding ring upward to complete the outside wire take-up of the finished bundle. Then move the guiding ring towards the center, and at the same time move the guiding ring from the upper and lower positions to the bottom, driving the finished bundle to start winding into a disc from the lower layer to the upper layer towards the inside, and perform cyclic operations to gradually wind inwards to complete the winding of the finished bundle into a disc. This wire take-up method ensures that the front end of the finished bundle is always on the outside. It is convenient to pull out the front end of the finished bundle during the threading construction of the finished bundle, greatly improving the construction efficiency, and at the same time reducing the risk of personal injury. The thickness of the finished bundle wound into a disc can be controlled by the guiding ring, improving the adaptability to transportation and stacking. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is Figure 1 the left view of

[0018] Figure 3 is Figure 1 the right view of

[0019] Figure 4 is Figure 1 the top view of

[0020] In the figure, 1. Take-up rotating disc mechanism; 1-1. Vertical frame; 1-2. Horizontal frame; 1-3. Bearing seat; 1-4. Roller; 1-5. Turntable; 1-6. Guard plate; 1-7. Main shaft; 1-8. Rotary motor; 2. Take-up guiding mechanism; 2-1. Operating platform; 2-2. Guiding ring; 2-3. Guiding ring adjustment mechanism; 2-4. Vertical frame; 2-5. Guiding ring horizontal adjustment mechanism; 2-51. Horizontal guide sleeve; 2-52. Horizontal guide rod; 2-53. Vertical plate; 2-54. Horizontal movement driving mechanism; 2-55. Transverse lead screw; 2-56. Transverse bevel gear seat; 2-57. Transverse driving gear; 2-58. Transverse stepping motor; 2-59. Transverse motor mounting plate; 2-60. Left limit plate; 2-6. Guiding ring height adjustment mechanism; 2-61. Vertical guide sleeve; 2-62. Vertical guide rod; 2-63. Guiding ring fixing plate; 2-64. Guiding ring height adjustment driving mechanism; 2-65. Vertical lead screw; 2-66. Height adjustment bevel gear seat; 2-67. Height adjustment driving gear; 2-68. Stepping motor; 2-69. Fixing plate; 2-70. Lower limit plate; 3. Finished product bundle. Detailed implementation mode

[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] Please refer to Figures 1 to 4 , a take-up frame for the finished product bundle of prestressed steel strands to be wound inward; including a take-up rotating disc mechanism 1 and a take-up guiding mechanism 2, wherein the take-up guiding mechanism is located on one side of the take-up rotating disc mechanism;

[0023] The take-up rotating disc mechanism 1 preferably has the following structure, but is not limited thereto. Specifically: it includes vertically arranged vertical frames 1-1 evenly distributed around the circumference fixed on the ground and horizontal frames 1-2 connecting the vertical frames. The horizontal frames extend towards the center of the turntable rotation. A bearing seat 1-3 is fixedly connected at the center of the horizontal frame; rollers 1-4 are installed on the upper part of each vertical frame through pin shafts. A turntable 1-5 is placed above the rollers; a plurality of guard plates 1-6 are fixed along the circumferential direction on the upper surface of the turntable. A main shaft 1-7 is fixed at the center of the turntable. The main shaft is connected to the bearing seat through a bearing; the bottom of the main shaft is connected to a rotary motor 1-8 through a coupling; the rotary motor is a reduction motor. Driven by the rotary motor, the main shaft rotates, thereby driving the entire turntable to rotate for taking up the wire. The steel strand bundle is located inside the guard plates. The finished product bundle has elasticity and bounces outwards during the rotating take-up process. The guard plates limit the outer diameter of the finished product bundle during winding. The above take-up rotating disc mechanism can also adopt a combination of a motor and a gear pair to transmit the rotational power.

[0024] The wire take-up guiding mechanism 2 includes an operation platform 2-1, a guiding ring 2-2, and a guiding ring adjustment mechanism 2-3; a plurality of vertical frames 2-4 are fixedly connected to the lower surface of the operation platform, and the vertical frames ensure the flatness and stability of the operation platform;

[0025] The guiding ring adjustment mechanism includes a guiding ring horizontal adjustment mechanism 2-5 and a guiding ring height adjustment mechanism 2-6. Among them, the function of the guiding ring horizontal adjustment structure is to drive the guiding ring to move horizontally along the radial direction of the turntable, thereby realizing wire take-up from the outer circle to the inner circle gradually; the guiding ring horizontal adjustment structure is installed on the upper surface of the operation platform; the guiding ring height adjustment mechanism is located on the side of the turntable and is connected to the guiding ring horizontal adjustment mechanism through a vertical plate bracket. The guiding ring 2-2 is installed at the lower end of the guiding ring height adjustment mechanism. A roller 2-20 is hinged to the bottom of the guiding ring. When the finished product bundle is taken inwards, the roller rolls when passing through the guiding ring, which is rolling friction instead of sliding friction, reducing the friction force. In the above technical solution, the guiding ring horizontal adjustment mechanism 2-5 includes two horizontal guide sleeves 2-51 symmetrically installed on the operation platform. Each horizontal guide sleeve is provided with a horizontal guide rod 2-52. The horizontal guide rod near the turntable side is connected to a vertical plate 2-53, and a horizontal movement driving mechanism 2-54 is fixedly installed on the vertical plate on the side of the horizontal guide sleeve; horizontal displacement is realized under the drive of the horizontal movement driving mechanism. The horizontal movement driving mechanism preferably has the following structure. The horizontal movement driving mechanism includes a transverse movement lead screw 2-55 parallel to the horizontal guide rod. A transverse movement bevel gear seat 2-56 is screwed on the transverse movement lead screw. The bevel gear on the transverse movement bevel gear meshes with a transverse movement driving gear 2-57. The transverse movement driving gear is fixed on the output shaft of a transverse movement stepping motor 2-58. The transverse movement stepping motor is fixed on the operation platform through a transverse movement motor mounting plate 2-59; the above structure uses a bevel gear and a lead screw nut pair to transmit power, which has the advantages of large transmitted torque, stability, and utilizes the function of the lead screw nut pair being self-locking by threads, thereby ensuring the stability and safety of horizontal movement.

[0026] A left limit plate 2-60 is provided on the left side of the transverse movement bevel gear seat on the operation platform. The function of the limit plate is to prevent the bevel gear 2-56 from moving to the left. The right side of the bevel gear meshes with the bevel gear pair. After being limited on both sides, it can rotate, and its rotation drives the screw rod to move back and forth. Without the limit plate, the bevel gear and the gear pair will be disengaged.

[0027] In the above technical solution, preferably, the guiding ring height adjustment mechanism 2-6 includes two vertical guide sleeves 2-61 which are symmetrically arranged on the vertical plate brackets on the side of the turntable in a mirror image. A vertical guide rod 2-62 is installed inside the vertical guide sleeve. The lower end of the vertical guide rod is fixedly connected to a guiding ring fixing plate 2-63. The lower surface of the fixedly connected guiding ring is connected to the guiding ring 2-2. A guiding ring height adjustment driving mechanism 2-64 is installed on the guiding ring fixing plate between the two vertical guide rods. In the above technical solution, preferably, the guiding ring height adjustment driving mechanism includes a vertical lead screw 2-65 perpendicular to the guiding ring fixing plate. A height adjustment bevel gear seat 2-66 is installed on the vertical lead screw through thread fit. The bevel gear on the height adjustment bevel gear seat meshes with a height adjustment driving gear 2-67. The driving gear is fixed on the output shaft of a stepping motor 2-68. The stepping motor is fixedly installed on the vertical plate bracket through a fixing plate 2-69.

[0028] To ensure the stability of operation, a lower limit plate 2-70 is provided below the height adjustment bevel gear seat. The function of the lower limit plate is basically the same as that of the left limit plate, which ensures normal operation and prevents the disengagement of the gear pair.

[0029] Adopting the above technical solution, during the process of winding the finished bundle, first pass the front end of the finished bundle 3 through the guiding ring, then fix it to the outside of the turntable, and then drive the rotary motor to rotate. The finished bundle starts to rotate and form a coil. Gradually move the guiding ring upward to complete the outer winding of the finished bundle. Then move the guiding ring towards the center. At the same time, the guiding ring moves from the upper and lower positions to the bottom position, driving the finished bundle to start winding from the lower layer to the upper layer towards the inside in a coil. Perform cyclic operations and gradually wind inwards to complete the coiling of the finished bundle. This winding method ensures that the front end of the finished bundle is always on the outside. It is convenient to pull out the front end of the finished bundle during the threading construction of the finished bundle, greatly improving the construction efficiency, and at the same time reducing the risk of personal injury. The thickness of the coiled finished bundle can be controlled by the guiding ring, improving the adaptability to transportation and stacking.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wire take-up frame based on the inward coiling of finished bundles of prestressed steel strands; including a wire take-up rotating disc mechanism, characterized in that, It further includes a wire take-up guiding mechanism, which is located on one side of the wire take-up rotating disc mechanism; The wire take-up guiding mechanism includes an operation platform, a guiding ring and a guiding ring adjusting mechanism; The guiding ring adjusting mechanism includes a guiding ring horizontal adjusting mechanism and a guiding ring height adjusting mechanism. The guiding ring horizontal adjusting mechanism is installed on the upper surface of the operation platform; the guiding ring height adjusting mechanism is located on the side of the turntable and is connected to the guiding ring horizontal adjusting mechanism through a vertical plate bracket. The guiding ring is installed at the lower end of the guiding ring height adjusting mechanism, and a roller is hinged to the bottom of the guiding ring; The guiding ring horizontal adjusting mechanism includes two horizontal guide sleeves symmetrically installed on the operation platform. Each horizontal guide sleeve is provided with a horizontal guide rod. The horizontal guide rod near the turntable side is connected with a vertical plate, and a horizontal movement driving mechanism is fixedly installed on the vertical plate on the side of the horizontal guide sleeve; The horizontal movement driving mechanism includes a transverse movement lead screw parallel to the horizontal guide rod. A transverse movement bevel gear seat is screwed on the transverse movement lead screw. The bevel gear on the transverse movement bevel gear meshes with a transverse movement driving gear. The transverse movement driving gear is fixed on the output shaft of a transverse movement stepping motor. The transverse movement stepping motor is fixed on the operation platform through a transverse movement motor mounting plate; The guiding ring height adjusting mechanism includes two vertical guide sleeves symmetrically arranged on the vertical plate bracket on the turntable side. A vertical guide rod is installed inside the vertical guide sleeve. The lower end of the vertical guide rod is fixedly connected with a guiding ring fixing plate. The lower surface of the guiding ring fixing plate is connected with the guiding ring; a guiding ring height adjusting driving mechanism is installed on the guiding ring fixing plate between the two vertical guide rods.

2. The wire take-up frame based on the inward coiling of the finished bundle of prestressed steel strands according to claim 1, wherein: A left limiting plate is arranged on the left side of the transverse movement bevel gear seat on the operation platform.

3. The take-up frame based on the inward coiling of the finished bundle of prestressed steel strands according to claim 1, characterized in that: The guiding ring height adjusting driving mechanism includes a vertical lead screw perpendicular to the guiding ring fixing plate. A height adjusting bevel gear seat is installed on the vertical lead screw through thread fit. The bevel gear on the height adjusting bevel gear seat meshes with a height adjusting driving gear; the driving gear is fixed on the output shaft of a stepping motor. The stepping motor is fixedly installed on the vertical plate bracket through a fixing plate.

4. The wire take-up frame based on the inward coiling of the finished bundle of prestressed steel strands according to claim 3, characterized in that: A lower limiting plate is arranged below the height adjusting bevel gear seat.

5. The wire take-up frame based on the inward coiling of the finished bundle of prestressed steel strands according to claim 1, wherein the wire take-up rotating disc mechanism includes vertically arranged frames evenly distributed in a circle and fixed on the ground and a transverse frame connecting the vertically arranged frames. The transverse frame extends towards the center of the turntable rotation. A bearing seat is fixedly connected at the center of the transverse frame; rollers are installed on the upper part of each vertically arranged frame through pin shafts, and the turntable is placed above the rollers; a plurality of guard plates are fixedly arranged on the upper surface of the turntable along the circumferential direction. A main shaft is fixed at the center of the turntable. The main shaft is connected to the bearing seat through a bearing; the bottom of the main shaft is connected to a rotary motor through a coupling.

Images