A construction method for a hollow box-shaped dense single crystal furnace foundation group

Abstract

The present invention provides a construction method for a hollow box-shaped dense single crystal furnace foundation group, belonging to the technical field of reinforcing bar implantation and polishing for single crystal furnaces. In the reinforcing bar implantation step of the construction method for the hollow box-shaped dense single crystal furnace foundation group, a reinforcing bar polishing device is used to centrally and uniformly polish the anchoring ends of the reinforcing bars. The reinforcing bar polishing device includes: a frame and a reinforcing bar placement groove installed on the frame in an inclined state. The lower end of the reinforcing bar placement groove is the reinforcing bar outlet, and a rotating disk is arranged below the reinforcing bar outlet. Reinforcing bar grooves are equidistantly arranged on the circumferential surface of the rotating disk, and reinforcing bar clamps are installed in the reinforcing bar grooves. A central gear disk is arranged inside the rotating disk, and planetary gears meshing with the central gear disk are arranged outside the reinforcing bar clamps. A polishing roller in a ring shape is arranged on one side of the rotating disk. The polishing roller is connected to a motor, and the rotating disk is also connected to the motor. The present invention has the advantages of being able to centrally and batch-wise uniformly polish the anchoring ends of the reinforcing bars for implantation, improving the construction efficiency and shortening the construction period.

Description

Technical Field

[0001] The present invention relates to the technical field of rebar implanting and polishing for single crystal furnaces, and particularly to a construction method for a hollow box-shaped dense single crystal furnace foundation group. Background Art

[0002] In the construction operation of a hollow box-shaped dense single crystal furnace foundation group, since the single crystal furnace foundation group is concentrated in the same area, the unified processing and configuration of materials can greatly improve the construction efficiency of the single crystal furnace foundation group and shorten the construction period. In the construction process of each single crystal furnace foundation, the rebar implanting process is a crucial link. At the same time, since the processes such as drilling, hole cleaning, glue injection, rebar implanting, and steel bar binding involved in the rebar implanting process are all manually processed, and during this process, the large amount of steel bar usage also leads to a large amount of engineering work for steel bar processing, especially before the steel bar diameter. In order to ensure the rebar implanting effect, it is necessary to perform a polishing treatment operation on the rebar anchorage end. In the existing technology for this operation process, manual use of a wire brush is currently used for one-by-one treatment, or a hand-held grinding machine is directly used for the operation. However, the operation processes of the above two existing technologies are not only time-consuming and laborious, but also there are large human errors in the polishing degree and polishing length of the rebar anchorage end, with low efficiency and poor operation quality. In view of this, the present application provides a construction method for a hollow box-shaped dense single crystal furnace foundation group. Summary of the Invention

[0003] To solve the above technical problems, the present invention proposes a construction method for a hollow box-shaped dense single crystal furnace foundation group that can centrally and batch-wise uniformly polish the rebar anchorage ends of the implanted rebars, improve the construction efficiency, and shorten the construction period.

[0004] The technical solution of the present invention is realized as follows:

[0005] A construction method for a hollow box-shaped dense single crystal furnace foundation group is constructed in sequence according to the steps of cleaning the ground, laying out the lines, implanting rebars, roughening the surface, binding steel bars, closing the formwork, and pouring concrete. Among them, in the rebar implanting step, a rebar polishing device is used to centrally and uniformly polish the rebar anchorage ends. The rebar polishing device includes: a frame and a rebar placement groove installed on the frame in an inclined state. The lower end of the rebar placement groove is the rebar outlet. Below the rebar outlet, a rotating disk rotatably installed on the frame is provided. The circumferential surface of the rotating disk is equidistantly provided with rebar grooves. Rebar clips are installed in the rebar grooves. A central gear disk fixedly installed on the frame is provided inside the rotating disk. A planetary gear meshing with the central gear disk is provided outside the rebar clip. A polishing roller in a ring shape is provided on one side of the rotating disk. The polishing roller is connected to a motor, and the rotating disk is connected to the motor.

[0006] Further, the steel bar clamp includes a first clamp block in a semicircular shape. One end of the first clamp block is rotatably connected to a second clamp block in a semicircular shape. A torsion spring for providing an elastic force for the expansion of the outer end of the steel bar clamp is arranged between the first clamp block and the second clamp block.

[0007] Further, the planetary gear includes two arc-shaped gear bodies. The two gear bodies are staggeredly distributed in the axial direction of the steel bar clamp. When the steel bar clamp is in a closed state, the teeth of the two gear bodies are equidistantly distributed in the circumferential direction of the steel bar clamp. There are two central gear discs, and the two central gear discs are respectively arranged corresponding to the two gear bodies in the axial direction.

[0008] Further, the steel bar groove includes an outer groove body and an inner groove body distributed from outside to inside along the radial direction of the rotating disc. The inner groove body is in a "U" shape, and the outer groove body is in an "eight" shape. The width of the inner groove body is adapted to the diameter of the steel bar clamp. When the steel bar clamp is at the bottom of the inner groove body, the steel bar clamp is in a closed state. When the steel bar clamp is at the notch position of the outer groove body, the steel bar clamp is in a maximally expanded state.

[0009] Further, a first extension block extending into the second clamp block is fixedly arranged on the inner wall surface of the end where the first clamp block rotatably connects to the second clamp block. A second extension block extending into the first clamp block is fixedly arranged on the inner wall surface of the end where the second clamp block rotatably connects to the first clamp block. The first extension block and the second extension block have the same shape and size, and the first extension block and the second extension block are staggeredly distributed in the axial direction of the steel bar clamp. A first accommodation groove for accommodating the second extension block is formed on the inner wall surface of the first clamp block. A second accommodation groove for accommodating the first extension block is formed on the inner wall surface of the second clamp block. When the steel bar clamp is at the notch position of the outer groove body, the included angle between the first extension block and the second extension block is an obtuse angle.

[0010] Further, the inner surfaces of the first clamp block and the second clamp block are flat surfaces. When the steel bar clamp is in a maximally expanded state, the distance between the opposite ends of the first clamp block and the second clamp block is greater than the outer diameter of the steel bar.

[0011] Further, an outer top block contacting the inner side surface of the steel bar clamp is arranged in the steel bar groove. A guide rod is fixedly connected to the inner side surface of the outer top block. The inner end of the guide rod is connected with an outer top spring, and the outer top spring is installed on the frame. A limiting groove is formed in the outer side surface of the outer top block. The inner wall surface of the limiting groove includes a first contact surface and second contact surfaces arranged at both ends of the first contact surface. The first contact surface is a plane, and the second contact surfaces are arc surfaces. When the steel bar clamp is in a fully unfolded state, the two second contact surfaces respectively fit on the outer side surfaces of the first clamp block and the second clamp block, and the inner ends of the first clamp block and the second clamp block abut against the first contact surface.

[0012] Further, the steel bar placement groove includes a box body part and a groove body part arranged on one side of the box body part. The bottom of the box body part is inclined, and the side walls of the box body part are all vertical. The top end of the groove body part communicates with the bottom of the lower side wall of the box body part. Among them, the groove body part includes a first groove and a second groove from top to bottom. The first groove is parallel to the bottom of the box body part, and the second groove is a vertical cavity. The second groove is arranged such that two vertically stacked steel bars can be accommodated inside it. The bottom end of the upstream groove wall of the second groove is located on the outer circumferential surface of the rotating disk. The bottom height of the downstream groove wall of the second groove is greater than the bottom height of its upstream groove wall, and the difference between the bottom height of the downstream groove wall of the second groove and the bottom height of its upstream groove wall is greater than the diameter of the steel bar and less than 1.5 times the diameter of the steel bar.

[0013] A guiding plate in an inclined state is fixedly connected to the bottom end of the downstream groove wall of the second groove. An arc-shaped limiting plate is connected to the guiding plate. When the inner surface of the arc-shaped limiting plate coincides with the circumferential surface where the outer side of the steel bar in the steel bar clamp is located at the innermost position in the steel bar groove, and when the steel bar placement groove rotates to a state where the groove opening is vertically downward, it is located outside the arc-shaped limiting plate.

[0014] Further, a channel for the rotating disk to pass through when rotating is formed in the position of the groove body part corresponding to the rotating disk. A blocking block is fixedly arranged at the position between adjacent two steel bar placement grooves on the rotating disk. The outer side surface of the blocking block is an arc surface. The downstream end of the outer side surface of the blocking block extends forward with an insertion tip. The distance between the front end of the insertion tip and the outer circumferential surface of the rotating disk is greater than the radius of the steel bar and less than the diameter of the steel bar. The upstream end of the outer side surface of the blocking block is connected to the downstream end of the groove opening of the upstream-side steel bar groove adjacent to it.

[0015] Furthermore, a gear disk bushing is fixedly arranged at the center of the central gear disk. The gear disk bushing is fixedly installed on the machine frame. A roller bushing is fixedly arranged at the center of the polishing roller. The roller bushing is rotatably sleeved on the gear disk bushing. The roller bushing is connected to the motor through a pulley assembly. A turntable bushing is fixedly arranged at the center of the rotating disk. The turntable bushing is rotatably sleeved outside the gear disk bushing. A central rod is rotatably installed inside the gear disk bushing. A circle of tooth grooves is formed on the surface of the central rod. An arc-shaped through hole is formed on the surface of the gear disk bushing. A driving gear is rotatably installed on the surface of the gear disk bushing. One end of the driving gear penetrates through the arc-shaped through hole and meshes with the tooth grooves. The central rod is connected to the motor through a first turntable transmission component. The driving gear is connected to the turntable bushing through a second turntable transmission component.

[0016] The present invention has the following beneficial effects:

[0017] By providing steel bar grooves, a large number of steel bars can be placed at one time. Then, the motor is started, and the steel bars will fall into each steel bar groove one by one from the steel bar outlet. The rotating disk automatically drives the steel bars to move downward in a circular motion. During this process, the steel bar clamp drives the steel bars to rotate. The anchoring ends of the steel bars rotate while making a circular motion on the surface of the polishing roller, and the polishing roller rotates at a high speed under the action of the motor, realizing an efficient polishing process for the anchoring ends of the steel bars. After the steel bars are polished, they automatically separate from below the rotating disk. In this way, the feeding, polishing, and blanking processes of the steel bars do not require manual intervention and can be completed automatically, greatly improving the polishing efficiency of the anchoring ends of the steel bars in the rebar planting process during the construction of the hollow box-shaped dense single crystal furnace foundation group, realizing centralized and batch unified polishing of the anchoring ends of the rebar planting steel bars, thereby improving the construction efficiency and shortening the construction period. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the present invention when polishing steel bars;

[0019] Figure 2 is the present invention Figure 1 an enlarged view of part A in;

[0020] Figure 3 is the present invention Figure 1 an enlarged view of part B in;

[0021] Figure 4 is the present invention Figure 1 a schematic diagram of the machine frame and the steel bar placement groove in;

[0022] Figure 5 is the present invention Figure 1 a side view of the rotating disk in;

[0023] Figure 6 is the present invention Figure 5Enlarged view at position C;

[0024] Figure 7 This is the present invention Figure 6 Schematic diagram after removing the steel bars;

[0025] Figure 8 Schematic diagram of a partially cut-open rotating disk of the present invention;

[0026] Figure 9 This is the present invention Figure 8 Enlarged view at position D;

[0027] Figure 10 This is the present invention Figure 8 Enlarged view at position E;

[0028] Figure 11 This is the present invention Figure 8 Schematic diagram of a partially cut-open central gear disk of the present invention;

[0029] Figure 12 Schematic diagram of the outer top block, guide rod and outer top spring of the present invention;

[0030] Figure 13 This is the present invention Figure 12 Enlarged view at position F;

[0031] Figure 14 Schematic diagram of the limit groove of the present invention;

[0032] Figure 15 Schematic diagram of the steel bar groove of the present invention;

[0033] Figure 16 Schematic diagram when the steel bar clamps are closed;

[0034] Figure 17 Schematic diagram of the disassembly of the steel bar clamp of the present invention;

[0035] Figure 18 This is the present invention Figure 17 Another perspective view.

[0036] In the figure: 1, frame; 1-1, leg; 1-2, disc part; 2, steel bar placement groove; 2-1, box part; 2-2, first groove; 2-3, second groove; 3, rotating disc; 4, steel bar groove; 4-1, outer groove body; 4-2, inner groove body; 5, steel bar clamp; 5-1, first clamping block; 5-2, second clamping block; 5-3, torsion spring; 5-4, first extension block; 5-5, second extension block; 5-6, first accommodation groove; 5-7, second accommodation groove; 6, central gear disc; 7, planetary gear; 8, polishing roller; 9, motor; 10, outer top block; 11, guide rod; 12, outer top spring; 13, limit groove; 13-1, first contact surface; 13-2, second contact surface; 14, guide plate;; 15, arc-shaped limit plate; 16, channel; 17, stop block; 17-1, insertion tip; 18, gear disc bushing; 18-1 first part; 18-2, second part; 18-3, third part; 19, roller bushing; 20, pulley assembly; 21, turntable bushing; 22, central rod; 23, tooth groove; 24, arc-shaped through hole; 25, driving gear; 26, first turntable transmission component; 27, second turntable transmission component; 28, first retaining ring; 29, auxiliary support ring; 30, second retaining ring. Specific implementation mode

[0037] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] As Figures 1 to 18 shown, a construction method for a foundation group of a hollow box-type dense single crystal furnace provided by the present invention is constructed in sequence according to the steps of cleaning the ground, setting out lines, implanting steel bars, roughening, tying steel bars, closing the formwork, and pouring concrete. Among them, in the step of implanting steel bars, a steel bar polishing device is used to centrally and uniformly polish the anchoring ends of the steel bars. The steel bar polishing device includes: a frame 1 and a steel bar placement groove 2 installed on the frame 1 in an inclined state. The lower end of the steel bar placement groove 2 is the steel bar outlet. Below the steel bar outlet, there is a rotating disc 3 rotatably installed on the frame 1. The circumferential surface of the rotating disc 3 is equidistantly provided with steel bar grooves 4. A steel bar clamp 5 is installed in the steel bar grooves 4. A central gear disc 6 fixedly installed on the frame 1 is arranged inside the rotating disc 3. A planetary gear 7 meshing with the central gear disc 6 is arranged outside the steel bar clamp 5. A ring-shaped polishing roller 8 is arranged on one side of the rotating disc 3. The polishing roller 8 is connected to a motor 9, and the rotating disc 3 is connected to the motor 9.

[0039] Specifically, the axes of the rotating disk 3, the central gear disk 6, and the polishing roller 8 coincide. The steel bar outlet is directly above the center of the rotating disk 3. During the rotation of the rotating disk 3, the steel bar groove 4 with the notch facing upward is exactly located at the steel bar outlet, so that the steel bar in the steel bar outlet can automatically fall into the steel bar groove 4 under the action of gravity.

[0040] The steel bar clamp 5 is used to clamp and fix the steel bar falling into the steel bar groove 4. During the rotation of the rotating disk 3, on the one hand, the planetary gear 7 will follow the rotating disk 3 to make a circular motion. On the other hand, when the planetary gear 7 meshes with the central gear disk 6, the planetary gear 7 will roll on the central gear disk 6. In this way, the planetary gear 7 drives the steel bar clamp 5 to rotate around its own axis in the steel bar groove 4, and further makes the steel bar clamp 5 drive the clamped steel bar to rotate.

[0041] When the steel bar makes a circular motion following the steel bar clamp 5, it will contact the polishing roller 8. At the same time, the steel bar rotates. In this way, the surface of the anchoring end of the steel bar can be automatically polished in all directions by the polishing roller 8.

[0042] As Figures 5 to 8 、 Figures 10 to 13 、 Figures 15 to 18 As shown, the steel bar clamp 5 includes a semi-circular first clamp block 5-1. One end of the first clamp block 5-1 is rotatably connected with a semi-circular second clamp block 5-2. A torsion spring 5-3 that provides an elastic force for the outer end of the steel bar clamp 5 to expand is arranged between the first clamp block 5-1 and the second clamp block 5-2.

[0043] Specifically, when the outer end of the steel bar clamp 5 is expanded to the maximum state, the distance between the outer ends of the first clamp block 5-1 and the second clamp block 5-2 is greater than the diameter of the steel bar. And when the outer end of the steel bar clamp 5 is in the closed state, the first clamp block 5-1 and the second clamp block 5-2 hold and fix the steel bar clamp 5.

[0044] As Figure 6 、 Figure 7 、 Figure 8 、 Figure 10 、 Figure 13 、 Figures 16 to 18 As shown, the planetary gear 7 includes two arc-shaped gear bodies. The two gear bodies are staggeredly distributed in the axial direction of the steel bar clamp 5. And when the steel bar clamp 5 is in the closed state, the teeth of the two gear bodies are equally spaced in the circumferential direction of the steel bar clamp 5. There are two central gear disks 6, and the two central gear disks 6 are respectively arranged corresponding to the two gear bodies in the axial direction.

[0045] Specifically, when the steel bar clamp 5 is in the closed state, the teeth of the two gear bodies form a complete circle. Further, when the steel bar clamp 5 holds and fixes the steel bar, the planetary gear 7 presents a state that can roll on the central gear disk 6, and further makes the steel bar clamp 5 drive the clamped steel bar to make a self-rotation motion.

[0046] Secondly, by arranging the two gear bodies to be staggeredly distributed axially on the steel bar clamp 5, when the steel bar clamp 5 is in the unfolded state, the two gear bodies will not block or interfere with each other, so as to ensure that the steel bar clamp 5 can be unfolded and closed.

[0047] As Figure 15 shown, the steel bar groove 4 includes an outer groove body 4-1 and an inner groove body 4-2 distributed from outside to inside along the radial direction of the rotating disc 3. The inner groove body 4-2 is in a "U" shape, and the outer groove body 4-1 is in an "eight" shape. The width of the inner groove body 4-2 is adapted to the diameter of the steel bar clamp 5. When the steel bar clamp 5 is at the bottom of the inner groove body 4-2, the steel bar clamp 5 is in a closed state. When the steel bar clamp 5 is at the notch position of the outer groove body 4-1, the steel bar clamp 5 is in the maximum unfolded state.

[0048] Specifically, the outer groove body 4-1 is in a state where the width gradually becomes smaller from outside to inside. Therefore, when the steel bar clamp 5 moves from outside to inside in the outer groove body 4-1, the first clamping block 5-1 and the second clamping block 5-2 are respectively squeezed by the inner wall surfaces on both sides of the outer groove body 4-1. At this time, the outer groove body 4-1 makes the steel bar clamp 5 gradually close. When the steel bar clamp 5 moves from inside to outside in the outer groove body 4-1, the first clamping block 5-1 and the second clamping block 5-2 are continuously unfolded under the action of the torsion spring 5-3.

[0049] In addition, when the steel bar clamp 5 moves to the innermost position of the steel bar groove 4, the steel bar clamp 5 is at the bottom of the inner groove body 4-2. At this time, the first clamping block 5-1 and the second clamping block 5-2 are restricted by the inner groove body 4-2 and will remain in the closed state.

[0050] As Figures 16 to 18 shown, a first extension block 5-4 extending into the second clamping block 5-2 is fixedly arranged on the inner wall surface of one end of the first clamping block 5-1 rotatably connected to the second clamping block 5-2. A second extension block 5-5 extending into the first clamping block 5-1 is fixedly arranged on the inner wall surface of one end of the second clamping block 5-2 rotatably connected to the first clamping block 5-1. The shapes and sizes of the first extension block 5-4 and the second extension block 5-5 are the same, and the first extension block 5-4 and the second extension block 5-5 are staggeredly distributed axially on the steel bar clamp 5. A first receiving groove 5-6 for receiving the second extension block 5-5 is formed on the inner wall surface of the first clamping block 5-1. A second receiving groove 5-7 for receiving the first extension block 5-4 is formed on the inner wall surface of the second clamping block 5-2. When the steel bar clamp 5 is at the notch position of the outer groove body 4-1, the included angle between the first extension block 5-4 and the second extension block 5-5 is an obtuse angle. The inner surfaces of the first clamping block 5-1 and the second clamping block 5-2 are flat surfaces, and when the steel bar clamp 5 is in the maximum unfolded state, the distance between the opposite ends of the first clamping block 5-1 and the second clamping block 5-2 is greater than the outer diameter of the steel bar.

[0051] By setting the first extension block 5-4 and the second extension block 5-5, when the steel bar falls into the steel bar clamp 5 sleeve, the surface of the steel bar provides a force for the closing of the steel bar clamp 5 sleeve by simultaneously squeezing the first extension block 5-4 and the second extension block 5-5. And at this time, the steel bar cooperates with the torsion spring 5-3 to simultaneously apply opposite-direction forces to the first clamping block 5-1 and the second clamping block 5-2. Furthermore, when the steel bar clamp 5 moves from the outside to the inside and continuously closes in the steel bar groove 4, the steel bar clamp 5 is not easily deflected, and thus the steel bar clamp 5 can be closed more stably. In addition, after the steel bar clamp 5 is closed, the first extension block 5-4 is received in the second receiving groove 5-7, and the second extension block 5-5 is received in the first receiving groove 5-6, so that the steel bar clamp 5 forms an annular structure after closing and stably clamps outside the steel bar.

[0052] As Figures 12 to 14 shown, an outer top block 10 contacting the inner side surface of the steel bar clamp 5 is provided in the steel bar groove 4. A guide rod 11 is fixedly connected to the inner side surface of the outer top block 10. The inner side end of the guide rod 11 is connected to an outer top spring 12, and the outer top spring 12 is installed on the frame 1. A disc portion 1-2 is formed at the middle portion of the frame 1 corresponding to the two central gear discs 6. A slot is opened in the disc portion 1-2. The inner side end of the guide rod 11 is inserted into the slot, and the outer top spring 12 is installed in the slot.

[0053] A limiting groove 13 is opened on the outer side surface of the outer top block 10. The inner wall surface of the limiting groove 13 includes a first contact surface 13-1 and second contact surfaces 13-2 provided at both ends of the first contact surface 13-1. The first contact surface 13-1 is a plane, and the second contact surfaces 13-2 are arc surfaces. And when the steel bar clamp 5 is in a fully unfolded state, the two second contact surfaces 13-2 are respectively attached to the outer side surfaces of the first clamping block 5-1 and the second clamping block 5-2, and the inner side ends of the first clamping block 5-1 and the second clamping block 5-2 abut against the first contact surface 13-1.

[0054] Specifically, in the initial state, the elastic force of the outer top spring 12 makes the steel bar clamp 5 stably located at the outermost position of the steel bar groove 4 through the guide rod 11 and the outer top block 10. At this time, the force applied by the outer top block 10 to the steel bar clamp 5 is balanced in the overall width direction of the steel bar clamp 5. And with the forces applied by the torsion spring 5-3 to the first clamping block 5-1 and the second clamping block 5-2, the limiting effects of the two inner wall surfaces of the outer groove body 4-1 on the first clamping block 5-1 and the second clamping block 5-2, and the limiting effects of the two second contact surfaces 13-2 on the first clamping block 5-1 and the second clamping block 5-2 respectively, the steel bar clamp 5 will be stably maintained in the unfolded state, and the opening range of the steel bar groove 4 in the width direction is located between the first clamping block 5-1 and the second clamping block 5-2, thereby ensuring that the steel bar can smoothly enter the steel bar clamp 5 after entering from the notch of the outer groove body 4-1.

[0055] When the steel bar clamp 5 continuously moves into the steel bar groove 4, the inner sides of the first clamping block 5-1 and the second clamping block 5-2 contact the first contact surface 13-1. At this time, the contact positions of the first clamping block 5-1 and the second clamping block 5-2 with the first contact surface 13-1 are located on both sides of the first contact surface 13-1 respectively. The outer top block 10 can only move translationally under the action of the guide rod 11, so that the outer top block 10 has the effect of preventing the steel bar clamp 5 from deflecting. In this way, it can be ensured that the steel bar clamp 5 can be stably unfolded and closed during the translational movement in the steel bar groove 4.

[0056] As Figure 1 , Figures 4 to 7 shown, the steel bar placement groove 2 includes a box body part 2-1 and a groove body part provided on one side of the box body part 2-1. The bottom of the box body part 2-1 is inclined, and the side walls of the box body part 2-1 are all vertical. The top end of the groove body part communicates with the bottom of the lower side wall of the box body part 2-1. Among them, the groove body part includes a first groove 2-2 and a second groove 2-3 from top to bottom. The first groove 2-2 is parallel to the bottom of the box body part 2-1. The second groove 2-3 is a vertical cavity. The second groove 2-3 is arranged so that two vertically stacked steel bars can be accommodated inside. And the bottom end of the upstream groove wall of the second groove 2-3 is located on the outer circumferential surface of the rotating disk 3. The bottom height of the downstream groove wall of the second groove 2-3 is greater than the bottom height of its upstream groove wall, and the difference between the bottom height of the downstream groove wall of the second groove 2-3 and the bottom height of its upstream groove wall is greater than the diameter of the steel bar and less than 1.5 times the diameter of the steel bar;

[0057] The bottom end of the downstream groove wall of the second groove 2-3 is fixedly connected with an inclined guide plate 14. The guide plate 14 is connected with an arc-shaped limiting plate 15. The inner surface of the arc-shaped limiting plate 15 coincides with the circumferential surface where the outer side of the steel bar in the steel bar clamp 5 is located when the steel bar clamp 5 is at the innermost position of the innermost steel bar groove 4. And when the steel bar placement groove 2 rotates to the state where the groove opening is vertically downward, it is located outside the arc-shaped limiting plate 15.

[0058] Specifically, the steel bars placed in the box body part 2-1 will automatically roll into the groove body part under the action of their own gravity, and automatically enter the second groove 2-3 through the first groove 2-2. Finally, the steel bars will automatically enter the steel bar outlet.

[0059] The bottom notch of the second groove 2-3 is the steel bar outlet. Since the bottom end of the upstream groove wall of the second groove 2-3 is located on the outer circumferential surface of the rotating disk 3, during the rotation of the rotating disk 3, when the position between two adjacent steel bar grooves 4 passes through the steel bar outlet, the lower steel bar among the two steel bars in the second groove 2-3 contacts the outer circumferential surface of the rotating disk 3, and the steel bar is supported by the rotating disk 3. When the notch of a steel bar groove 4 moves directly below the steel bar outlet, the steel bar in contact with the circumferential surface of the rotating disk 3 will automatically fall into the steel bar groove 4 under the action of gravity. At the same time, the steel bar falling into the steel bar groove 4 will automatically fall into the steel bar clamp 5, and use its own gravity to provide pressure for the inner displacement of the steel bar clamp 5 towards the inner side of the steel bar groove 4.

[0060] By arranging the guide plate 14, during the process of the steel bar entering the steel bar clamp 5 and making a circular motion following the rotating disk 3, it will be subjected to the extrusion of the inner surface of the guide plate 14, and then this extrusion is converted into a force that promotes the further inner displacement of the steel bar sleeve towards the inner side of the steel bar groove 4. When the steel bar moves to the bottom end of the guide plate 14, the steel bar clamp 5 is located at the bottom of the inner groove body 4-2. At this time, the steel bar clamp 5 closes and has a stable clamping and fixing effect on the steel bar.

[0061] Since the inner groove body 4-2 has a "U" - shaped structure, when the steel bar clamp 5 is displaced to the position where the first clamping block 5-1 and the second clamping block 5-2 respectively contact the two parallel side walls of the inner groove body 4-2, the steel bar clamp 5 is already in a closed state. At this time, the teeth of the two gear bodies form a continuous and equally - spaced distribution in the circumferential direction. As the steel bar clamp 5 moves to the bottom of the inner groove body 4-2, the planetary gear 7 formed by the two gear bodies meshes with the central gear disk 6. After that, during the process of the steel bar making a circular motion following the rotating disk 3, the steel bar contacts the inner surface of the arc - shaped limiting plate. The arc - shaped limiting plate keeps the steel bar clamp 5 in a closed state and stably clamps and fixes the steel bar, and the planetary gear 7 rolls on the central gear disk 6. Thus, during the process of the steel bar moving within the coverage range of the inner surface of the arc - shaped limiting plate 15, the steel bar clamp 5 drives the steel bar to rotate, enabling the polishing roller 8 to polish the surface of the anchoring end of the steel bar in all directions.

[0062] When the steel bar groove 4 moves outside the arc - shaped limiting plate 15, the steel bar also disengages from the arc - shaped limiting plate 15. And at this time, the notch of the steel bar groove 4 is in a state of tilting downward. As the rotating disk 3 continues to rotate, the steel bar groove 4 finally passes through the bottom end position of the rotating disk 3. During this process, the steel bar will disengage from the steel bar groove 4 under the action of its own gravity, and at the same time, the extrusion on the steel bar clamp 5 sleeve is removed. The steel bar clamp 5 sleeve first moves from the inner groove body 4-2 to the outer groove body 4-1 under the action of its own gravity, and then returns to the notch position of the steel bar groove 4 under the action of its own gravity and the elastic force of the torsion spring 5-3. At the same time, the steel bar clamp 5 switches from the closed state to the fully expanded state.

[0063] As shown Figure 4 in the figure, a channel 16 through which the rotating disk 3 passes during rotation is provided in the trough body portion corresponding to the position of the rotating disk 3. A stopper 17 is fixedly provided at the position between two adjacent steel bar placing troughs 2 of the rotating disk 3. The outer side surface of the stopper 17 is an arc surface. An insertion tip 17-1 extends forward at the downstream end of the outer side surface of the stopper 17. The distance between the front end of the insertion tip 17-1 and the outer circumferential surface of the rotating disk 3 is greater than the radius of the steel bar and less than the diameter of the steel bar. The upstream end of the outer side surface of the stopper 17 is connected to the downstream end of the notch of the upstream-side steel bar trough 4 adjacent to it.

[0064] Specifically, in the rotation direction of the rotating disk 3, the insertion tip 17-1 extends into the range of the notch of the steel bar trough 4. Between the notch of the steel bar trough 4 and the steel bar outlet, the insertion tip 17-1 is in a state of sleeving the outside of the steel bar at the steel bar outlet from the outside, and the insertion tip 17-1 is located on the upper half circumferential surface of the steel bar. When the notch of the steel bar trough 4 is aligned with the steel bar outlet, the steel bar in the steel bar outlet is located inside the insertion tip 17-1 and can smoothly enter the steel bar trough 4, while the steel bar above the steel bar at the steel bar outlet is supported by the top of the insertion tip 17-1 during falling, so that the steel bar will be restricted in the second trough 2-3. In this way, it can be realized that during the process of the steel bar trough 4 passing through the steel bar outlet, each steel bar trough 4 can stably enter only one steel bar, achieving the effect of automatic feeding of steel bars one by one.

[0065] At this time, the difference between the bottom height of the downstream trough wall of the second trough 2-3 and the bottom height of its upstream trough wall is greater than the diameter of the steel bar and less than 1.5 times the diameter of the steel bar, so that the steel bar at the steel bar outlet in the second trough 2-3 is located below the downstream trough wall of the second trough 2-3 in the height direction. When it is subjected to the circumferential acting force of the rotating disk 3, the included angle space formed between the top end of the guiding plate 14 and the rotating disk 3 can be used for steel bar buffering to prevent the steel bar from being stuck between the downstream side wall of the second trough 2-3 and the upstream end side wall of the steel bar trough 4.

[0066] As shown Figures 1 to 3 、 Figure 8 、 Figure 9 and Figure 11As shown in the figure, a gear disc bushing 18 is fixedly arranged at the center of the central gear disc 6. The gear disc bushing 18 is fixedly installed on the frame 1. A roller bushing 19 is fixedly arranged at the center of the polishing roller 8. The roller bushing 19 is rotatably sleeved on the gear disc bushing 18. The roller bushing 19 is connected to the motor 9 through a pulley assembly 20. A turntable bushing 21 is fixedly arranged at the center of the rotating disc 3. The turntable bushing 21 is rotatably sleeved outside the gear disc bushing 18. A central rod 22 is rotatably installed inside the gear disc bushing 18. A circle of tooth grooves 23 is provided on the surface of the central rod 22. An arc-shaped through hole 24 is provided on the surface of the gear disc bushing 18. A driving gear 25 is rotatably installed on the surface of the gear disc bushing 18. One end of the driving gear 25 penetrates through the arc-shaped through hole 24 and meshes with the tooth grooves 23. A first turntable transmission component 26 is connected between the central rod 22 and the motor 9. A second turntable transmission component 27 is connected between the driving gear 25 and the turntable bushing 21.

[0067] Specifically, during the operation of the motor 9, on the one hand, the polishing roller 8 is driven to rotate through the pulley assembly 20. On the other hand, the central rod 22 is driven to rotate through the first turntable transmission component 26. The central rod 22 drives the driving gear 25 to rotate through the tooth grooves 23, and the driving gear 25 drives the rotating disc 3 to rotate through the second turntable transmission component 27.

[0068] The first turntable transmission component 26 includes a first gear fixedly sleeved on the power shaft of the motor 9, a second gear meshing with the first gear, and a third gear meshing with the second gear. The second gear is rotatably installed on the frame 1, and the third gear is fixedly sleeved on the outer side end of the central rod 22.

[0069] The second turntable transmission component 27 includes a fourth gear meshing with the driving gear 25, a fifth gear coaxially and fixedly connected to the fourth gear, and a sixth gear meshing with the fifth gear. The driving gear 25, the fourth gear, and the fifth gear are all rotatably installed on the support. The support is fixedly installed on the surface of the gear disc bushing 18. The sixth gear is fixedly sleeved on the turntable bushing 21.

[0070] At this time, the rotation direction of the rotating disc 3 is opposite to that of the polishing roller 8, further improving the polishing effect of the polishing roller 8 on the surface of the steel bar anchoring end.

[0071] As Figure 1 and Figure 4 shown, the frame 1 includes two groups of legs 1-1. The rotating disc 3 and the polishing roller 8 are both located between the two groups of legs 1-1. The two ends of the gear disc bushing 18 are respectively fixed on the two groups of legs 1-1. A first retaining ring 28 is rotatably installed at the outer side end of the polishing roller 8. The first retaining ring 28 is fixedly installed on the leg 1-1 on one side of the polishing roller 8.

[0072] An auxiliary support ring 29 is provided on the side of the rotating disk 3 away from the polishing roller 8. The auxiliary support ring 29 is rotatably sleeved on the gear disk shaft sleeve 18. The outer circumferential surface of the auxiliary support ring 29 is located on the same circumferential surface as the outer circumferential surface of the polishing roller 8 and the inner surface of the arc-shaped limit plate 15. The outer end of the auxiliary support ring 29 is provided with a second retaining ring 30 fixedly mounted on the support leg 1-1 on the same side as it.

[0073] The part of the gear sleeve 18 between the rotating disk 3 and the auxiliary support ring 29 is divided into three parts to form a first part 18-1, a second part 18-2 and a third part 18-3. The end of the first part 18-1 opposite to the third part 18-3 is fixedly connected to the support leg 1-1, and the second part 18-2 is rotatably connected to the end opposite to the first part 18-1. The third part 18-3 is provided with a thread groove inwardly facing the end of the second part 18-2. The end of the second part 18-2 facing the third part 18-3 is inserted into the thread groove and cooperates with the thread of the thread groove. The part of the steel bar placement groove 2 between the rotating disk 3 and the auxiliary support ring 29 is divided into two, and the part of the steel bar placement groove 2 corresponding to the auxiliary support ring 29 is fixedly installed on the second retaining ring 30.

[0074] In summary, the operator only needs to place the steel bars into the steel bar placement slot 2, and then start the motor 9. The steel bars can automatically fall into each steel bar slot 4 passing through the steel bar outlet one by one, and the weight of the steel bars and the guiding effect of the guide plate 14 make the steel bar clamp 5 automatically move inward to fix the steel bar clamp 5, and in this process, the two gear bodies form a complete planetary gear 7 and mesh with the center gear 6. Afterwards, the steel bar cooperates with the self-rotation movement while following the rotating disk 3 to make a circular motion through the polishing roller 8, so that the anchor end of the steel bar can be polished in all directions. When the steel bar is separated from the arc-shaped limit plate 15, the steel bar automatically detaches from the rotating disk 3, and the steel bar clamp 5 automatically resets. In this way, the function of batch steel bar automation for all-round polishing of the anchor end is realized, which greatly improves the efficiency of the construction of the hollow box-type dense single crystal furnace foundation group and shortens the construction period.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction method for a group of hollow box-shaped intensive single crystal furnace foundations, characterized in that, The construction is carried out in the steps of cleaning the ground, setting out lines, implanting steel bars, roughening the surface, tying steel bars, closing the formwork, and pouring concrete in sequence. Among them, in the step of implanting steel bars, a steel bar polishing device is used to centrally and uniformly polish the anchoring ends of the steel bars. The steel bar polishing device includes: a frame and a steel bar placement groove installed obliquely on the frame. The lower end of the steel bar placement groove is the steel bar outlet. Below the steel bar outlet, there is a rotating disk rotatably installed on the frame. The circumferential surface of the rotating disk is equidistantly provided with steel bar grooves. Steel bar clips are installed in the steel bar grooves. A central gear disk fixedly installed on the frame is arranged inside the rotating disk. Planetary gears meshing with the central gear disk are arranged outside the steel bar clips. A ring-shaped polishing roller is arranged on one side of the rotating disk. The polishing roller is connected to a motor, and the rotating disk is connected to the motor; The steel bar clip includes a semi-circular first clip block. One end of the first clip block is rotatably connected to a semi-circular second clip block. A torsion spring for providing an elastic force for the outer end of the steel bar clip to expand is arranged between the first clip block and the second clip block; The planetary gear includes two arc-shaped gear bodies. The two gear bodies are staggeredly distributed in the axial direction of the steel bar clip. And when the steel bar clip is in a closed state, the teeth of the two gear bodies are equidistantly distributed in the circumferential direction of the steel bar clip. There are two central gear disks, and the two central gear disks are respectively arranged axially corresponding to the two gear bodies; The steel bar groove includes an outer groove body and an inner groove body distributed from outside to inside along the radial direction of the rotating disk. The inner groove body is in a "U" shape, and the outer groove body is in an "eight" shape. And the width of the inner groove body is adapted to the diameter of the steel bar clip. When the steel bar clip is at the bottom of the inner groove body, the steel bar clip is in a closed state. When the steel bar clip is at the opening of the outer groove body, the steel bar clip is in the fully expanded state; An outer top block contacting the inner side surface of the steel bar clip is arranged in the steel bar groove. A guide rod is fixedly connected to the inner side surface of the outer top block. The inner end of the guide rod is connected to an outer top spring, and the outer top spring is installed on the frame. A limiting groove is opened on the outer side surface of the outer top block. The inner wall surface of the limiting groove includes a first contact surface and second contact surfaces arranged at both ends of the first contact surface. The first contact surface is a plane, and the second contact surfaces are arc-shaped surfaces. And when the steel bar clip is in the fully expanded state, the two second contact surfaces respectively adhere to the outer side surfaces of the first clip block and the second clip block, and the inner ends of the first clip block and the second clip block abut against the first contact surface.

2. The construction method for a group of hollow box-shaped intensive single crystal furnace foundations according to claim 1, characterized in that, On the inner wall surface of one end of the second clamping block rotatably connected to the first clamping block, a first extension block extending into the second clamping block is fixedly arranged. On the inner wall surface of one end of the first clamping block rotatably connected to the second clamping block, a second extension block extending into the first clamping block is fixedly arranged. The first extension block and the second extension block have the same shape and size, and the first extension block and the second extension block are staggeredly distributed in the axial direction of the steel bar clamp. A first receiving groove for receiving the second extension block is formed on the inner wall surface of the first clamping block, and a second receiving groove for receiving the first extension block is formed on the inner wall surface of the second clamping block. When the steel bar clamp is located at the notch position of the outer groove body, the included angle between the first extension block and the second extension block is an obtuse angle.

3. The construction method for a group of hollow box-shaped intensive single crystal furnace foundations according to claim 2, characterized in that, The inner surfaces of the first clamping block and the second clamping block are flat surfaces. When the steel bar clamp is unfolded to the maximum state, the distance between the opposite ends of the first clamping block and the second clamping block is greater than the outer diameter of the steel bar.

4. The construction method for a group of hollow box-shaped intensive single crystal furnace foundations according to claim 1, characterized in that, The steel bar placement groove includes a box body part and a groove body part arranged on one side of the box body part. The bottom of the box body part is inclined, and the side walls of the box body part are all vertical. The top end of the groove body part is communicated with the bottom of the lower side wall of the box body part. Among them, the groove body part includes a first groove and a second groove from top to bottom. The first groove is parallel to the bottom of the box body part, and the second groove is a vertical cavity. The second groove is arranged so that two vertically stacked steel bars can be accommodated inside it. The bottom end of the upstream groove wall of the second groove is located on the outer circumferential surface of the rotating disc. The bottom height of the downstream groove wall of the second groove is greater than the bottom height of its upstream groove wall, and the difference between the bottom height of the downstream groove wall of the second groove and the bottom height of its upstream groove wall is greater than the diameter of the steel bar and less than 1.5 times the diameter of the steel bar. The bottom end of the downstream groove wall of the second groove is fixedly connected with an inclined guide plate. An arc-shaped limiting plate is connected to the guide plate. When the inner surface of the arc-shaped limiting plate coincides with the circumferential surface where the outer side of the steel bar in the steel bar clamp is located when the steel bar clamp is at the innermost position in the steel bar groove, and when the steel bar placement groove rotates to the state where the notch is vertically downward, it is located outside the arc-shaped limiting plate.

5. The construction method for a group of hollow box-shaped intensive single crystal furnace foundations according to claim 4, characterized in that, A channel for the rotating disc to pass through when rotating is formed at the position of the groove body part corresponding to the rotating disc. A blocking block is fixedly arranged at the position of the rotating disc between two adjacent steel bar placement grooves. The outer side surface of the blocking block is an arc surface. The downstream end of the outer side surface of the blocking block extends forward with an insertion tip. The distance between the front end of the insertion tip and the outer circumferential surface of the rotating disc is greater than the radius of the steel bar and less than the diameter of the steel bar. The upstream end of the outer side surface of the blocking block is connected to the downstream end of the notch of the upstream steel bar groove adjacent to it.

6. The construction method for a group of hollow box-shaped intensive single crystal furnace foundations according to claim 1, characterized in that, A gear disc shaft sleeve is fixedly arranged at the center of the central gear disc. The gear disc shaft sleeve is fixedly installed on the frame. A roller shaft sleeve is fixedly arranged at the center of the polishing roller. The roller shaft sleeve is rotatably sleeved on the gear disc shaft sleeve. The roller shaft sleeve is connected to the motor through a pulley assembly. A turntable shaft sleeve is fixedly arranged at the center of the rotating disc. The turntable shaft sleeve is rotatably sleeved outside the gear disc shaft sleeve. A central rod is rotatably installed inside the gear disc shaft sleeve. A circle of tooth grooves is formed on the surface of the central rod. An arc-shaped through hole is formed on the surface of the gear disc shaft sleeve. A driving gear is rotatably installed on the surface of the gear disc shaft sleeve. One end of the driving gear penetrates through the arc-shaped through hole and meshes with the tooth grooves. The central rod is connected to the motor through a first turntable transmission component. The driving gear is connected to the turntable shaft sleeve through a second turntable transmission component.

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