A cement concrete bored pile head cutting device

Abstract

The present invention discloses a cement concrete bored pile head cutting device, which relates to the technical field of cutting devices, including two groups of fixing parts, and also including: a hoop structure, which is arranged on the fixing part and used to fix the cutting device on the cement concrete bored pile; a ring cutting component, which is arranged on the hoop structure and used to automatically cut the cement concrete bored pile; wherein, the hoop structure includes steel sheets, which are installed on both sides of the fixing part, and two adjacent groups of steel sheets are connected by bolts, and both sides of the fixing part are provided with a first slide groove, and the inner wall of the first slide groove is slidably matched with a slider; wherein, the ring cutting component includes a movable plate, which is sleeved on the inside of the slider, and a circular ring frame is installed on the top of the movable plate. Through the cooperation between the steel sheet and the bolt, the fixing part can be fixed on cement concrete bored piles of different diameters. Compared with the method of placing the frame on the ground, the method of fixing it on the cement concrete bored pile by the hoop is more stable.

Description

Technical Field

[0001] The invention relates to the technical field of cutting equipment, in particular to a cement concrete bored pile head cutting device. Background Art

[0002] Bored piles are a type of precast pile that cuts through soil layers by rotating a drill rod and drill bit, while simultaneously stripping and outputting the soil with a bucket or soil blowing pipe. Steel bars and concrete are then poured into the hole to form a precast pile.

[0003] When cutting the pile head of a cement concrete bored pile, it is necessary to measure the height of the pile top for position marking. Before construction, in order to protect the integrity of the pile head, a handheld concrete cutting machine is usually used to perform circumferential cutting along the red line marked on the pile top to avoid damaging the main reinforcement of the pile foundation. However, the handheld concrete cutting equipment has high operation intensity and low efficiency when cutting the pile head. Among them, the "a pile head circumferential cutting machine for a high-speed railway pedestal" mentioned in the patent publication number "CN106836222A" can automatically perform circumferential cutting on the outer surface of the pile head, but its body needs to be placed on the ground, and the ground of the construction site cannot guarantee its flatness, which leads to deviations in the cutting position of the pile head and affects the cutting effect of the pile head. Summary of the invention

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide a cement concrete bored pile head cutting device.

[0005] To achieve the above object, the present invention provides the following technical solution: a cement concrete bored pile head cutting device, comprising two sets of fixing parts, and further comprising:

[0006] A hoop structure, which is arranged on the fixing member and is used to fix the cutting device on the cement concrete bored pile;

[0007] The ring cutting component is arranged on the hoop structure and is used for automatically cutting the cement concrete bored piles;

[0008] Wherein, the hoop structure includes steel sheets, which are installed on both sides of the fixing member, and two adjacent sets of steel sheets are connected by bolts, and first slide grooves are provided on both sides of the fixing member, and the inner wall of the first slide groove is slidably matched with a slider;

[0009] Among them, the circular cutting assembly includes a movable plate, which is sleeved inside the slider, a circular ring frame is installed on the top of the movable plate, a gear block is installed inside the circular ring frame, the top of the circular ring frame is slidably matched with a movable frame, a driving motor is installed on the top of the movable frame, a gear is installed on the output shaft of the driving motor, a fixed frame is installed on the top of the movable frame, a first slot is opened on the top of the fixed frame, a fixed rod is installed inside the first slot, a movable part and a first spring are sleeved on the outer surface of the fixed rod, and the cutting equipment body is sleeved inside the movable part.

[0010] As a preferred solution of the present invention, the circular ring frame includes a first arc-shaped member and a second arc-shaped member, the tooth block is arranged inside the first arc-shaped member and the second arc-shaped member, a slot is provided at the bottom of the first arc-shaped member, a protrusion is installed at the bottom of the second arc-shaped member, the first arc-shaped member and the second arc-shaped member are respectively arranged at the top end of a group of movable plates, and the top ends of the first arc-shaped member and the second arc-shaped member are both slidably matched with the movable frame.

[0011] As a preferred solution of the present invention, a threaded rod is installed on one side of the slider, a second notch is opened in the middle of the slider and the threaded rod, and a nut is threadedly connected to one side of the threaded rod.

[0012] As a preferred solution of the present invention, a second slide groove is provided on the outer side of the cutting equipment body, a plurality of groups of circular holes are provided inside the second slide groove, the movable part slides in cooperation with the second slide groove, a limiting shaft is sleeved inside the movable part, and a second spring is sleeved on the outer surface of the limiting shaft.

[0013] As a preferred solution of the present invention, the protrusion is sleeved with the slot, and when the protrusion is sleeved with the slot, the first arc-shaped member and the second arc-shaped member can form a circular ring.

[0014] As a preferred solution of the present invention, the gear is meshedly connected with the tooth block, and the first spring is elastically supported between the first notch and the movable member.

[0015] As a preferred solution of the present invention, the inner wall of the slider is rough, the end of the threaded rod is provided with a chamfer, and when the nut is threadedly connected to the threaded rod, the threaded rod is squeezed toward the middle, and the nut is in compression contact with the fixing member.

[0016] As a preferred solution of the present invention, the second spring is elastically supported between the movable member and the limiting shaft, and the limiting shaft is movably engaged with the circular hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can fix the fixing part on the cement concrete bored piles of different diameters through the cooperation between the steel sheet and the bolt. At the same time, through the cooperation between the slider and the first slide groove, the movable plate can be driven to adjust the distance between the first arc-shaped part and the second arc-shaped part, so that the first arc-shaped part and the second arc-shaped part are combined into a circular ring. Compared with the method of placing the frame on the ground, the method of fixing it on the cement concrete bored pile by the hoop is more stable.

[0019] 2. The present invention enables the nut to move along the outer surface of the threaded rod and gather the threaded rod toward the middle through the cooperation between the threaded rod and the nut, so that the slider can clamp the movable plate and limit the height of the movable plate. The height of the cement concrete bored pile cutting can be controlled by adjusting the height of the movable plate.

[0020] 3. The present invention adjusts the telescopic distance of the cutting device body through the cooperation between the movable part and the second slide groove. When the cutting device body abuts against the cement concrete bored pile, the movable part is pushed to move along the outer surface of the fixed rod. At this time, the elastic force of the first spring exerts a push on the movable part, so that the cutting device body can be driven to move by the movable part, thereby controlling the cutting depth of the cement concrete bored pile by the cutting device body.

[0021] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the disassembly structure of the circular ring frame of the present invention;

[0024] Figure 3 It is a schematic cross-sectional structural diagram of the top of the present invention;

[0025] Figure 4 It is a schematic cross-sectional structural diagram of the front side of the present invention;

[0026] Figure 5 It is a schematic diagram of the disassembly structure of the hoop structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the disassembly structure of the cutting device body of the present invention;

[0028] Figure 7 It is a schematic diagram of the disassembly structure of the slider of the present invention.

[0029] In the figure: 1, fixing part; 2, steel sheet; 3, bolt; 4, first slide groove; 5, slider; 6, movable plate; 7, circular frame; 71, first arc-shaped part; 72, second arc-shaped part; 73, slot; 74, protrusion; 8, tooth block; 9, movable frame; 10, driving motor; 11, gear; 12, fixing frame; 13, first notch; 14, fixing rod; 15, movable part; 16, first spring; 17, cutting equipment body; 18, second spring; 19, threaded rod; 20, second notch; 21, nut; 22, second slide groove; 23, round hole; 24, limit axis. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1-7 As shown, the present invention provides a cement concrete bored pile head cutting device, comprising two sets of fixing parts 1, and also comprising:

[0032] A hoop structure, which is arranged on the fixing member 1 and is used to fix the cutting device on the cement concrete bored pile;

[0033] The ring cutting component is arranged on the hoop structure and is used for automatically cutting the cement concrete bored piles;

[0034] The hoop structure includes a steel sheet 2, and each fixing member 1 is provided with a steel sheet 2 on both sides. Two adjacent sets of steel sheets 2 are connected by bolts 3. Both sides of the fixing member 1 are provided with a first slide groove 4, and the inner wall of the first slide groove 4 is slidably matched with a slider 5.

[0035] Among them, the circular cutting assembly includes a movable plate 6, which is sleeved inside the slider 5. A circular ring frame 7 is installed on the top of the movable plate 6, a gear block 8 is installed inside the circular ring frame 7, and a movable frame 9 is slidably matched at the top of the circular ring frame 7. A driving motor 10 is installed on the top of the movable frame 9. A gear 11 is installed on the output shaft of the driving motor 10. A fixed frame 12 is installed on the top of the movable frame 9. A first slot 13 is opened on the top of the fixed frame 12. A fixed rod 14 is installed inside the first slot 13. A movable part 15 and a first spring 16 are sleeved on the outer surface of the fixed rod 14. A cutting device body 17 is sleeved inside the movable part 15.

[0036] Through the design of the steel sheet 2, the fixing part 1 can be fixed on cement concrete bored piles of different diameters. At the same time, through the cooperation between the slider 5 and the first slide groove 4, the movable plate 6 can be driven to adjust the position of the circular ring frame 7. At the same time, through the operation of the driving motor 10, the gear 11 can be controlled to rotate, so that through the cooperation between the gear 11 and the tooth block 8, the movable frame 9 can be driven to slide along the top of the circular ring frame 7, and then the cutting equipment body 17 can be controlled to perform ring cutting on the cement concrete bored pile.

[0037] like Figure 2 As shown, the annular frame 7 includes a first arc-shaped member 71 and a second arc-shaped member 72. The circumferential outer walls of the first arc-shaped member 71 and the second arc-shaped member 72 are both provided with tooth blocks 8. A slot 73 is provided at the bottom of the first arc-shaped member 71. A protrusion 74 is installed at the bottom of the second arc-shaped member 72. The first arc-shaped member 71 and the second arc-shaped member 72 are respectively arranged at the top end of a group of movable plates 6. The top ends of the first arc-shaped member 71 and the second arc-shaped member 72 are both slidably matched with the movable frame 9.

[0038] The design of the first arc-shaped member 71 and the second arc-shaped member 72 makes it easy to assemble them from the periphery of the cement concrete bored pile without having to be placed from the top of the cement concrete bored pile. At the same time, the cooperation between the slot 73 and the protrusion 74 makes it easy to limit the first arc-shaped member 71 and the second arc-shaped member 72 to make it more stable.

[0039] like Figure 7 As shown, a threaded rod 19 is installed on one side of the slider 5 , a second notch 20 is provided in the middle of the slider 5 and the threaded rod 19 , and a nut 21 is threadedly connected to one side of the threaded rod 19 .

[0040] Through the cooperation between the slider 5 and the movable plate 6, the movable plate 6 can move up and down along the inner wall of the slider 5. At the same time, through the design of the second notch 20, when the spacing of the second notch 20 is reduced, the slider 5 will have a squeezing effect on the movable plate 6, thereby limiting the upward and downward movement of the movable plate 6.

[0041] like Figure 6 As shown, a second slide groove 22 is provided on the outer side of the cutting device body 17, and a plurality of groups of round holes 23 are provided inside the second slide groove 22. The movable part 15 slides in cooperation with the second slide groove 22, and a limiting shaft 24 is sleeved inside the movable part 15, and a second spring 18 is sleeved on the outer surface of the limiting shaft 24.

[0042] Through the design of the second slide groove 22, the movable part 15 can move along the inner side of the second slide groove 22, so that the cutting device body 17 can be adjusted to retract and move. At the same time, through the cooperation between the limiting shaft 24 and the circular hole 23, the cutting device body 17 can be limited.

[0043] like Figure 2As shown, the protrusion 74 is sleeved with the slot 73. When the protrusion 74 is sleeved with the slot 73, the first arc-shaped member 71 and the second arc-shaped member 72 can form a circular ring.

[0044] Through the cooperation between the protrusion 74 and the slot 73, the first arc-shaped member 71 and the second arc-shaped member 72 can be assembled into a circular ring, so that the cutting device body 17 can be controlled to circle around, which is convenient for cutting operations.

[0045] like Figure 3 , 4 As shown, the gear 11 is meshedly connected with the tooth block 8 , and the first spring 16 is elastically supported between the first notch 13 and the movable member 15 .

[0046] Through the design of the first spring 16, the movable part 15 has good elastic reset performance. When the cutting device body 17 contacts the cement concrete bored pile, the movable part 15 will be pushed to move along the outer surface of the fixed rod 14. At this time, since the first spring 16 is in a compressed state, an elastic force will be applied to the movable part 15, so that the cutting device body 17 can be driven to move by the movable part 15, and the cement concrete bored pile can be cut by the cutting device body 17.

[0047] like Figure 7 As shown, the inner wall of the slider 5 is rough, and the end of the threaded rod 19 is provided with a chamfer. When the nut 21 is threadedly connected with the threaded rod 19, the threaded rod 19 is squeezed toward the middle, and the nut 21 is squeezed and contacted with the fixing member 1.

[0048] The chamfered edge of the threaded rod 19 facilitates the sleeve of the nut 21 on the threaded rod 19. The cooperation between the threaded rod 19 and the nut 21 enables the nut 21 to move along the outer surface of the threaded rod 19 and gather the threaded rod 19 toward the middle, so that the slider 5 can clamp the movable plate 6. The cooperation between the nut 21 and the fixing member 1 allows the movement of the slider 5 to be restricted by the threaded rod 19 when the nut 21 squeezes the fixing member 1, so that the slider 5 can be limited. By limiting the slider 5, the cutting of the cement concrete bored pile is more stable.

[0049] like Figure 6 As shown, the second spring 18 is elastically supported between the movable member 15 and the limiting shaft 24 , and the limiting shaft 24 is movably engaged with the circular hole 23 .

[0050] Through the design of the second spring 18, the limit shaft 24 has good elastic reset performance. At this time, since the second spring 18 is in a compressed state, an elastic force will be applied to the limit shaft 24, so that the limit shaft 24 will enter the inside of the circular hole 23, thereby limiting the cutting device body 17 through the cooperation between the limit shaft 24 and the circular hole 23, and then the cutting depth of the cement concrete bored pile by the cutting device body 17 can be adjusted.

[0051] Working principle:

[0052] First, the staff can fix the steel sheet 2 on the outer surface of the cement concrete bored pile by the bolts 3, and at the same time, through the cooperation between the movable plate 6 and the slider 5, the movable plate 6 can be assembled on the inner side of the slider 5 and the first arc member 71 and the second arc member 72 can be assembled into a ring through the cooperation between the slot 73 and the protrusion 74, and at the same time, through the cooperation between the nut 21 and the threaded rod 19, the slider 5 is driven to clamp the movable plate 6, and the movement of the slider 5 is limited by the cooperation between the nut 21 and the fixed member 1, and at the same time, through the cooperation between the movable member 15 and the second slide groove 22, the position of the cutting device body 17 can be adjusted, and the cutting device body 17 is limited by the cooperation between the limiting shaft 24 and the circular hole 23, and then the operation of the driving motor 10 will cause the gear 11 to rotate, so that the movable frame 9 can be moved along the top of the circular ring frame 7 through the cooperation between the gear 11 and the tooth block 8, and then the cement concrete bored pile can be ring cut by the cutting device body 17.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cement concrete bored pile head cutting device, comprising two sets of fixing parts (1), It is characterized in that Also includes: A hoop structure, which is arranged on the fixing member (1) and is used to fix the cutting device on the cement concrete bored pile; The ring cutting component is arranged on the hoop structure and is used for automatically cutting the cement concrete bored piles; The hoop structure comprises steel sheets (2), each fixing member (1) is provided with steel sheets (2) on both sides, the steel sheets (2) are provided on both sides of the fixing member (1), two adjacent groups of steel sheets (2) are connected by bolts (3), both sides of the fixing member (1) are provided with first slide grooves (4), and the inner wall of the first slide groove (4) is slidably matched with a slider (5); The circular cutting assembly comprises a movable plate (6), the movable plate (6) being sleeved inside a slider (5), a circular frame (7) being mounted on the top of the movable plate (6), a tooth block (8) being mounted inside the circular frame (7), a movable frame (9) being slidably matched at the top of the circular frame (7), a driving motor (10) being mounted on the top of the movable frame (9), a gear (11) being mounted on the output shaft of the driving motor (10), a fixed frame (12) being mounted on the top of the movable frame (9), a first notch (13) being formed on the top of the fixed frame (12), a fixed rod (14) being mounted inside the first notch (13), a movable part (15) and a first spring (16) being sleeved on the outer surface of the fixed rod (14), and a cutting device body (17) being sleeved inside the movable part (15); The annular frame (7) comprises a first arc-shaped member (71) and a second arc-shaped member (72), the circumferential outer walls of the first arc-shaped member (71) and the second arc-shaped member (72) are both provided with tooth blocks (8), the bottom of the first arc-shaped member (71) is provided with a slot (73), the bottom of the second arc-shaped member (72) is provided with a protrusion (74), the first arc-shaped member (71) and the second arc-shaped member (72) are respectively provided at the top end of a group of movable plates (6), and the top ends of the first arc-shaped member (71) and the second arc-shaped member (72) are both slidably matched with the movable frame (9); A second slide groove (22) is provided on the outer side of the cutting device body (17), a plurality of groups of round holes (23) are provided inside the second slide groove (22), the movable member (15) is slidably matched with the second slide groove (22), a limit shaft (24) is sleeved inside the movable member (15), and a second spring (18) is sleeved on the outer surface of the limit shaft (24); The second spring (18) is elastically supported between the movable member (15) and the limiting shaft (24), and the limiting shaft (24) is movably engaged with the circular hole (23).

2. The cement concrete bored pile head cutting device according to claim 1, Features: A threaded rod (19) is installed on one side of the slider (5), a second notch (20) is provided in the middle of the slider (5) and the threaded rod (19), and a nut (21) is threadedly connected to one side of the threaded rod (19).

3. The cement concrete bored pile head cutting device according to claim 1, Features: The protrusion (74) is sleeved with the slot (73); when the protrusion (74) is sleeved with the slot (73), the first arc-shaped member (71) and the second arc-shaped member (72) can form a circular ring.

4. The cement concrete bored pile head cutting device according to claim 1, Features: The gear (11) is meshingly connected with the tooth block (8), and the first spring (16) is elastically supported between the first notch (13) and the movable member (15).

5. The cement concrete bored pile head cutting device according to claim 2, Features: The inner wall of the slider (5) is rough, the end of the threaded rod (19) is provided with a chamfer, and when the nut (21) is threadedly connected to the threaded rod (19), the threaded rod (19) is squeezed toward the middle, and the nut (21) is in squeeze contact with the fixing member (1).

Images