Prefabricated square pile upper surface chamfering equipment

Abstract

The utility model discloses chamfering equipment for the upper surface of a prefabricated square pile. The chamfering equipment comprises a mounting frame, a pair of chamfering rollers and a partition piece, wherein the chamfering rollers are coaxially mounted on the mounting frame, and chamfering surfaces of the chamfering rollers are arranged in a back-to-back manner; the partition piece is arranged between the pair of chamfering rollers; wherein the maximum radial distance between the chamfered surface and the rotation center is L1, the maximum radial distance between the outer wall surface of the bottom of the partition piece and the rotation center is L2, and L2 is larger than or equal to 0.2 L1 and smaller than or equal to 0.95 L1. The partition piece is placed on the adjacent side dies of the two dies, the pair of chamfering rollers arranged back to back is located in the two dies correspondingly, and when the partition piece rolls along the side dies, chamfering faces of the chamfering faces conduct chamfering on the upper surface and the adjacent side faces of the prefabricated square pile. The upper surface of the prefabricated square pile can be chamfered by pushing the mounting frame to drive the chamfering roller to move in the longitudinal direction of the die, operation is easy and convenient, and the chamfering equipment is simple in structure and low in production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated component forming, in particular to equipment for chamfering the upper surface of a prefabricated square pile. Background Art

[0002] Prefabricated square piles are prefabricated in prefabricated component factories or construction sites and sunk into the soil at the designed position using pile driving equipment. They are characterized by being sturdy and durable, not affected by groundwater or humid environments, able to withstand large loads, having a high degree of mechanization in construction, fast progress, and being able to adapt to construction in different soil layers.

[0003] Prefabricated square piles are usually manufactured by injecting concrete into an open mold through a placing mechanism, and then vibrating and smoothing the concrete in the mold to ensure the quality of the finished prefabricated component. However, the edges of the upper surface of the prefabricated square piles formed by the open mold are right-angled structures, which are prone to stress concentration. During the later transportation or use, the edges are easily damaged by bumps, affecting the overall appearance of the prefabricated component and also affecting the local structural strength of the prefabricated component to a certain extent. Utility Model Content

[0004] The utility model aims to provide a device for chamfering the upper surface of a prefabricated square pile, so as to solve the problem that the edges of the prefabricated square pile are in a right-angle structure and are easily damaged due to collision.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The upper surface chamfering device of the prefabricated square pile comprises a mounting frame, a pair of chamfering rollers coaxially mounted on the mounting frame and arranged with the chamfering surfaces facing away from each other, and a spacer arranged between the pair of chamfering rollers;

[0007] The maximum radial distance from the chamfered surface to the center of rotation is L1, the maximum radial distance from the outer wall surface at the bottom of the barrier to the center of rotation is L2, and 0.2L1≤L2≤0.95L1.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the upper surface of the prefabricated square pile is chamfered and chamfered by the upper surface chamfering device of the prefabricated square pile, so that a chamfer is formed between the upper surface of the prefabricated square pile and the adjacent side surface, thereby avoiding stress concentration at the corners of the prefabricated square pile. During the chamfering process, the spacer is placed on the adjacent side molds of the two molds, and a pair of chamfering rollers arranged in back to back are respectively located in the two molds. Since L2≤0.95L1, that is, when the spacer is placed on the side mold, the chamfering surface of the chamfering roller is at least partially immersed in the pile body of the prefabricated square pile to chamfer the prefabricated square pile. When the spacer rolls along the side mold, the chamfering surface of the chamfering surface is chamfered between the upper surface of the prefabricated square pile and the adjacent side surface. The upper surface of the prefabricated square pile can be chamfered by pushing the mounting frame to drive the chamfering roller to move along the longitudinal direction of the mold. The operation is simple, and the chamfering device has a simple structure and low production cost.

[0009] Preferably, the generatrix of the revolved outer contour of the chamfered surface includes at least one oblique line segment;

[0010] And / or, the revolved outer contour generatrix of the chamfered surface includes at least one circular arc segment;

[0011] And / or, the chamfering roller further includes a smoothing surface extending outwardly along the chamfering surface, and the outer surface of the barrier member is axially flush with the smoothing surface.

[0012] Preferably, a wheel axle is rotatably mounted on the mounting frame, a pair of the chamfered rollers and the barrier member are mounted on the wheel axle, and the wheel axle is provided with a limit member for limiting the position of the chamfered rollers.

[0013] Preferably, the limiting member is a limiting buckle or a limiting nut.

[0014] Preferably, an elastic member is provided between the chamfered roller and the limiting member or the barrier member.

[0015] Preferably, the mounting frame is provided with a mounting arm, and an external connection portion is provided at one end of the mounting arm away from the mounting frame.

[0016] Preferably, it also includes a frame, and a lifting assembly installed on the frame and used to adjust the height position of the chamfering roller;

[0017] The lifting assembly comprises a power source installed on the frame and a lifting beam movably installed on the frame, the chamfering roller is installed on the lifting beam, and the output end of the power source is connected to the lifting beam.

[0018] Preferably, a longitudinal walking mechanism is provided at the bottom of the frame; the longitudinal walking mechanism comprises walking wheels and a walking drive for driving the walking wheels;

[0019] And / or, the frame is provided with a cleaning member at least at the front end in the traveling direction.

[0020] Preferably, the chamfering roller is movably mounted on the lifting beam, and the lifting beam is provided with a transverse shifting component for adjusting the transverse position of the chamfering roller.

[0021] Preferably, the chamfered surface is provided with an anti-sticking coating and / or a wear-resistant coating;

[0022] And / or, the barrier member is provided with a wear-resistant coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a prefabricated square pile upper surface chamfering device;

[0024] Figure 2 It is a cross-sectional view of the equipment for chamfering the upper surface of prefabricated square piles;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of another prefabricated square pile upper surface chamfering equipment;

[0026] Figure 4 is a cross-sectional view of a chamfering roller;

[0027] Figure 5 is a cross-sectional view of another chamfering roller;

[0028] Figure 6 It is a three-dimensional structural schematic diagram of another prefabricated square pile upper surface chamfering equipment;

[0029] Figure 7 for Figure 6 A partial enlarged view of the middle A part;

[0030] Figure 8 for Figure 6 A partial enlarged view of the middle B part;

[0031] Fig. 9 for Figure 6 A partial enlarged view of the middle C part;

[0032] Fig.10 It is a structural schematic diagram of a fourth prefabricated square pile upper surface chamfering device disclosed in an embodiment of the utility model;

[0033] Fig.11 for Fig.10 Sectional view of AA in the middle;

[0034] Fig.12 It is a structural schematic diagram of a fifth prefabricated square pile upper surface chamfering device disclosed in an embodiment of the utility model.

[0035] In the figure: 1. mounting frame; 2. chamfered roller; 21. chamfered surface; 3. spacer; 4. limiter; 5. mounting arm; 6. external part; 7. frame; 71. power source; 72. travel drive; 73. travel wheel; 74. cleaning part; 75. transverse frame; 76. roller; 77. rack; 78. transverse drive; 79. lifting beam; 8. axle; 9. elastic part. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] In this article, the terms "upper, lower, inside, outside" and the like are established based on the positional relationships shown in the drawings. The corresponding positional relationships may also change depending on the drawings, and therefore cannot be understood as absolute limitations on the scope of protection; moreover, relational terms such as "first" and "second" and the like are merely used to distinguish one component from another with the same name, and do not necessarily require or imply any actual relationship or order between these components.

[0038] The production mold of prefabricated square piles is a ground mold set, which includes a plurality of prefabricated square pile molds placed side by side, the upper end of the mold is open and the upper end surface of the mold is flush with the upper end surface of the prefabricated square pile. The length direction of the mold is longitudinal, the width direction is transverse, and the height direction is vertical.

[0039] Embodiment 1

[0040] like Figure 1 , 2 As shown, this embodiment provides a prefabricated square pile upper surface chamfering device, comprising a mounting frame 1, a pair of chamfering rollers 2 coaxially mounted on the mounting frame 1 and with the chamfered surfaces 21 facing away from each other, and a spacer 3 disposed between the pair of chamfering rollers 2;

[0041] The maximum radial distance from the chamfered surface 21 to the center of rotation is L1, and the maximum radial distance from the bottom outer wall surface of the barrier 3 to the center of rotation is L2, 0.2L1≤L2≤0.95L1.

[0042] Specifically, the upper surface of the prefabricated square pile is chamfered and chamfered by the upper surface chamfering device of the prefabricated square pile, so that a chamfer is formed between the upper surface of the prefabricated square pile and the adjacent side surface, thereby avoiding stress concentration at the corners of the prefabricated square pile. During the chamfering process, the barrier 3 is placed on the adjacent side molds of the two molds, and a pair of chamfering rollers 2 arranged in back to back are respectively located in the two molds. Since L2≤0.95L1, that is, when the barrier 3 is placed on the side mold, the chamfering surface 21 of the chamfering roller 2 is at least partially immersed in the pile body of the prefabricated square pile to chamfer the prefabricated square pile. When the barrier 3 rolls along the side mold, the chamfering surface of the chamfering surface 21 is chamfered between the upper surface of the prefabricated square pile and the adjacent side surface. The upper surface of the prefabricated square pile can be chamfered by pushing the mounting frame 1 to drive the chamfering roller 2 to move along the longitudinal direction of the mold. The operation is simple, and the chamfering device has a simple structure and low production cost.

[0043] In detail, when the spacer 3 is placed on two adjacent side molds, the spacing between a pair of chamfering rollers 2 arranged in back to back is equal to or slightly larger than the spacing between the inner surfaces of adjacent side molds, so that when the spacer 3 is placed on the side mold, the chamfering rollers 2 can be tightly attached to the inner surface of the side mold, 0.2L1≤L2 so that the spacer 3 has sufficient structural strength to avoid twisting and deformation of the spacer 3 during the chamfering process and affecting the chamfering accuracy, preferably 0.4L1≤L2≤0.7L1, more preferably, 0.5L1≤L2≤0.65L1.

[0044] Furthermore, the chamfering device on the upper surface of the prefabricated square pile can also chamfer prefabricated special-shaped square piles. The prefabricated special-shaped square piles are composed of large-diameter sections and small-diameter sections that are alternately connected. In the process of chamfering the prefabricated special-shaped square piles, the large-diameter section (or small-diameter section) is chamfered first, and then the chamfering device on the upper surface of the prefabricated square pile is replaced or adjusted to make it compatible with the small-diameter section (or large-diameter section) of the prefabricated special-shaped square pile, and then the small-diameter section of the prefabricated special-shaped square pile is chamfered. The specific chamfering process can refer to the chamfering process of the prefabricated square piles, and it will not be repeated here.

[0045] Further, such as Figure 4 As shown, the revolved outer contour generatrix of the chamfered surface includes at least one oblique line segment; Figure 2 As shown, the revolution outer contour generatrix of the chamfered surface includes at least one arc segment; there is no restriction on the specific shape of the chamfered surface, such as Figure 2 , 4 As shown, the chamfered surface can be set as an inclined surface, a curved surface, or a combination of an inclined surface and a curved surface.

[0046] Further, such as Figure 2 , 4As shown in Figures 5 and 6, the chamfering roller 2 also includes a smoothing surface extending outward along the chamfering surface, and the outer surface of the spacer 3 is axially flush with the smoothing surface. When the spacer 3 is placed on the side mold, since the outer surface of the spacer 3 is axially flush with the smoothing surface, the bottom of the spacer 3 is flush with the upper end surface of the mold, that is, the smoothing surface of the chamfering roller is flush with the upper surface of the prefabricated square pile. The smoothing surface of the chamfering roller can smooth the upper surface of the prefabricated square pile without adjusting the vertical height of the chamfering roller 2. When the spacer 3 is placed on the side mold, the chamfering roller 2 is exactly at the vertical height required for chamfering.

[0047] like Figure 2 As shown, further, a wheel axle 8 is rotatably mounted on the mounting frame 1, a pair of chamfering rollers 2 and a spacer 3 are mounted on the wheel axle 8, and the wheel axle 8 is provided with a limiter 4 for limiting the position of the chamfering roller 2. The chamfering roller 2 and the spacer 3 are rotatably mounted on the mounting frame 1 through the wheel axle 8. During the chamfering process, the sliding friction between the spacer 3 and the side mold and between the chamfering roller 2 and the upper surface of the prefabricated square pile is converted into rolling friction, reducing the friction force to save the manpower and material resources required for chamfering. An installation space for the chamfering roller 2 is formed between the limiter 4 and the spacer 3, so that when the spacer 3 is blocked on two adjacent side molds of two molds, the chamfered surface of the chamfering roller 2 is exactly located at the corners of the prefabricated square piles in the two molds. Preferably, bearings are provided at both ends of the wheel axle 8, and the wheel axle 8 is connected to the mounting frame 1 through the bearings.

[0048] In detail, if the upper surface of the prefabricated special-shaped square pile is to be chamfered, the distance between the pair of chamfering rollers 2 arranged in opposite directions is first adjusted to match the distance between the inner side surfaces of the adjacent side molds at the large diameter section and the small diameter section, and then the chamfer is performed at that section, and then the distance between the pair of chamfering rollers 2 is adjusted to match the other section, and then the other section is chamfered. Figure 5 As shown, the chamfering roller 2 is provided with an internal threaded hole, and the spacer 3 is provided with an external thread adapted to the internal threaded hole. When adjusting the spacing between a pair of chamfering rollers 2, the spacer 3 of the corresponding width can be replaced when adjusting the spacing, or the screw connection depth or the clamping depth can be directly adjusted to change the spacing between the pair of chamfering rollers 2. When adjusting the spacing between a pair of chamfering rollers 2, the position of the limit member 4 is adjusted accordingly.

[0049] Furthermore, the limit member 4 is a limit buckle or a limit nut. When the limit member 4 is a limit buckle, the position of the limit buckle can be adjusted to adapt to the adjustment of the spacing. Of course, different types of limit buckles can also be replaced. When the limit member 4 is a limit nut, the lateral position of the limit nut can be changed by rotating the limit nut to adapt to the adjustment of the spacing. Of course, the limit member 4 can also be other structures, which are not specifically limited here, as long as they can limit the position of the chamfered roller 2 together with the barrier member 3.

[0050] Furthermore, the mounting frame 1 is provided with a mounting arm 5, and an external connection portion 6 is provided at one end of the mounting arm 5 away from the mounting frame 1. The relevant staff holds the external connection portion 6 and drives the mounting frame 1 to move longitudinally through the external connection portion 6 to chamfer the large diameter section or small diameter section of the prefabricated square pile. Preferably, the external connection portion 6 is provided with anti-slip grooves.

[0051] Further, the chamfered surface 21 is provided with an anti-sticking coating and / or a wear-resistant coating; and / or the barrier 3 is provided with a wear-resistant coating. During the chamfering process, there is a friction problem between the chamfered surface 21 and the outer surface of the barrier 3. The provision of the wear-resistant coating can improve the wear resistance of the chamfered surface 21 and the barrier 3 and ensure the service life. The wear-resistant coating is preferably polytetrafluoroethylene.

[0052] Embodiment 2

[0053] The same parts in this embodiment as those in the first embodiment are given the same figure marks, and the same text descriptions are omitted.

[0054] Compared with the first embodiment, the chamfering roller 2 provided in this embodiment has the following different structural designs:

[0055] like Fig.10 and 11 As shown, an elastic member 9 is provided between the chamfering roller 2 and the limiting member 4. When the elastic member 9 is provided between the chamfering roller 2 and the limiting member 4, the elastic member is a compression spring; or Fig.12 As shown, an elastic member 9 is provided between the chamfering roller 2 and the barrier member 3; when the elastic member 9 is provided between the chamfering roller 2 and the barrier member 3, the elastic member 9 is a tension spring.

[0056] During the chamfering process, the elastic member 9 presses or pulls the chamfering roller 2 so that the chamfering roller 2 can be close to the side mold, so that the distance between the pair of chamfering rollers 2 is adjustable, which is convenient for chamfering the large diameter section and small diameter section of prefabricated square piles or prefabricated special-shaped square piles of different models. In addition, it can also adapt to different models of molds.

[0057] Embodiment 3

[0058] In this embodiment, the same parts as those in Embodiments 1 and 2 are given the same figure marks, and the same text descriptions are omitted.

[0059] like Figure 6 , 7As shown, the mounting frame 1 provided in this embodiment also has such a different structural design: it also includes a frame 7, a lifting assembly installed on the frame 7 and used to adjust the height position of the chamfering roller 2; the lifting assembly includes a power source 71 installed on the frame 7 and a lifting beam 79 installed on the frame 7 movably, the chamfering roller 2 is installed on the lifting beam 79, and the output end of the power source 71 is connected to the lifting beam 79. The power source 71 is one or a combination of a hydraulic cylinder and a screw lift, and the power source 71 is preferably a screw lift. The power source 71 drives the lifting beam 79 to rise or fall. When the prefabricated square pile is chamfered, the power source 71 drives the lifting beam 79 to fall so that the barrier 3 abuts against the side mold, and the frame 7 continues to move in the longitudinal direction to chamfer the prefabricated square pile. After the chamfering is completed, the lifting beam 79 rises. In the process of chamfering the prefabricated special-shaped square piles, after the corners of the large diameter section (or small diameter section) of the prefabricated special-shaped square piles are chamfered, the power source 71 drives the lifting beam 79 to rise, and after the chamfering roller 2 passes over the small diameter section (or large diameter section) adjacent to the chamfered large diameter section (or small diameter section), the power source 71 drives the lifting beam 79 to descend, so that the chamfering roller 2 can continue to chamfer the next large diameter section (or small diameter section), and repeat the above operation to complete the chamfering of the large diameter section (or small diameter section) of the prefabricated special-shaped square piles.

[0060] A longitudinal walking mechanism is provided at the bottom of the frame 7; the longitudinal walking mechanism includes a walking wheel 73 and a walking drive 72 driving the walking wheel 73; the walking drive 72 is a rotary power source 71, and the walking drive 72 is preferably a motor. The walking drive 72 drives the walking wheel 73 to rotate, thereby driving the frame 7 to move along the longitudinal direction of the mold.

[0061] and / or, if Figure 6 , 8 As shown, the frame 7 is provided with a cleaning member 74 at least at the front end in the traveling direction. The cleaning member 74 can clean the upper end surface of the mold, so that the running wheel 73 runs more stably.

[0062] like Figure 6 , 9 As shown, the chamfering roller 2 is movably mounted on the lifting beam 79, and the lifting beam 79 is provided with a transverse shifting assembly for adjusting the transverse position of the chamfering roller 2. The transverse shifting assembly can adjust the transverse position of the lifting beam 79 so that the transverse shifting assembly can adapt to the transverse position of the mold. The transverse shifting assembly can drive the lifting beam 79 to move laterally, and its specific structure is not limited. A structure of a transverse shifting assembly is provided here, and the transverse shifting assembly includes a transverse shifting frame 75, and the mounting frame 1 is installed on the lifting beam 79 through the transverse shifting frame 75. A roller 76 is provided between the transverse shifting frame 75 and the lifting beam 79, and a rack 77 is provided on the lifting beam 79. A transverse shifting drive 78 is provided on the transverse shifting frame 75. The transverse shifting drive 78 is a rotary power source 71, and a gear adapted to the rack 77 is provided at the output end of the transverse shifting drive 78. The transverse shifting drive 78 drives the gear to rotate, thereby enabling the gear to move along the rack 77.

[0063] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. Equipment for chamfering the upper surface of prefabricated square piles, characterized in that: It comprises a mounting frame (1), a pair of chamfering rollers (2) coaxially mounted on the mounting frame (1) and with chamfered surfaces (21) arranged in opposite directions, and a barrier member (3) arranged between the pair of chamfering rollers (2); The maximum radial distance from the chamfered surface (21) to the center of rotation is L1, the maximum radial distance from the bottom outer wall surface of the barrier member (3) to the center of rotation is L2, and 0.2L1≤L2≤0.95L1.

2. The device for chamfering the upper surface of prefabricated square piles according to claim 1, characterized in that: The revolved outer contour generatrix of the chamfered surface includes at least one oblique line segment; And / or, the revolved outer contour generatrix of the chamfered surface includes at least one circular arc segment; And / or, the chamfering roller (2) further comprises a smoothing surface extending outwardly along the chamfering surface, and the outer surface of the barrier member (3) is axially flush with the smoothing surface.

3. The device for chamfering the upper surface of prefabricated square piles according to claim 1, characterized in that: A wheel axle (8) is rotatably mounted on the mounting frame (1); a pair of chamfered rollers (2) and the barrier member (3) are mounted on the wheel axle (8); and the wheel axle (8) is provided with a limit member (4) for limiting the axial position of the chamfered rollers (2).

4. The device for chamfering the upper surface of prefabricated square piles according to claim 3, characterized in that: The limiting member (4) is a limiting buckle or a limiting nut.

5. The device for chamfering the upper surface of prefabricated square piles according to claim 3, characterized in that: An elastic member (9) is provided between the chamfered roller (2) and the limiting member (4) or the barrier member (3).

6. The upper surface chamfering device of the prefabricated square pile according to any one of claims 1 to 5, characterized in that: The mounting frame (1) is provided with a mounting arm (5), and an external connection portion (6) is provided at one end of the mounting arm (5) away from the mounting frame (1).

7. The upper surface chamfering device of the prefabricated square pile according to any one of claims 1 to 5, characterized in that: It also includes a frame (7) and a lifting component installed on the frame (7) and used to adjust the height position of the chamfering roller (2); The lifting assembly comprises a power source (71) mounted on the frame (7) and a lifting beam (79) movably mounted on the frame (7), the chamfering roller (2) is mounted on the lifting beam (79), and the output end of the power source (71) is connected to the lifting beam (79).

8. The device for chamfering the upper surface of prefabricated square piles according to claim 7, characterized in that: A longitudinal walking mechanism is provided at the bottom of the frame (7); the longitudinal walking mechanism comprises a walking wheel (73) and a walking drive (72) for driving the walking wheel (73); And / or, the frame (7) is provided with a cleaning member (74) at least at the front end in the traveling direction.

9. The device for chamfering the upper surface of prefabricated square piles according to claim 7, characterized in that: The chamfering roller (2) is movably mounted on the lifting beam (79), and the lifting beam (79) is provided with a transverse shifting component for adjusting the transverse position of the chamfering roller (2).

10. The device for chamfering the upper surface of prefabricated square piles according to claim 1, characterized in that: The chamfered surface (21) is provided with an anti-sticking coating and / or a wear-resistant coating; And / or, the barrier member (3) is provided with a wear-resistant coating.

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