Synchronous drill bit structure for pile breaker drill bit assembly

Abstract

The utility model relates to the technical field of pile breaking equipment for breaking concrete piles at engineering construction sites, and discloses a synchronous drill-out structure of a pile breaker drill head group, comprising a disassembly structure and a drill-out structure, wherein the fixed block is driven out of the positioning groove by pulling the slide frame upwards, and then the slide frame is pulled outwards to drive the connecting rod to move outwards, and the connecting rod drives the clamping block to move outwards, so that the clamping block is separated from the through groove on the connecting block, and the connecting block is pulled out from the left side of the drill frame, and the limit fixation of the drill frame is released, so that the drill frame can be disassembled, thereby facilitating rapid replacement, and the structure is simple and easy to disassemble and assemble, and the working efficiency of the pile breaker is improved. By inserting the connecting block into the installation groove on the left side of the drill frame, the clamping block moves inwards under the action of a reset spring, and the clamping block is clamped in the through groove on the connecting block, the drill frame is limited and fixed, and the slide frame moves downwards under the action of a strong spring, and drives the fixed block to be clamped in the positioning groove, thereby improving the stability of the drill frame when it is installed and used.

Description

Technical Field

[0001] The utility model relates to the technical field of pile breaking equipment for breaking concrete piles at engineering construction sites, in particular to a synchronous drill bit structure of a pile breaker drill bit group. Background Art

[0002] When pouring cast-in-place piles, the strength of the pile head cannot be guaranteed because the cement slurry flows upward during the vibration process. Therefore, the top elevation of the cast-in-place pile should be 0.8 to 1.0 m higher than the designed top elevation. After the concrete solidification strength exceeds 80%, the part above the elevation will be chiseled off to ensure the strength of the pile head concrete. The work of chiseling off this part of the pile head concrete is called "breaking the pile head". The part of the pile head that needs to be chiseled off is only provided with one circle of longitudinal reinforcement, and no stirrups are provided. The tools for breaking pile heads are mainly divided into manual and mechanical ones, with mechanical pile head breaking being the main method. The main method is to use multiple vibrating hydraulic devices to vibrate and knock around the pile breaking position of the pile head to remove the concrete outside the longitudinal reinforcement, and then change the position of the vibrating hydraulic device so that it enters the inner side of the longitudinal reinforcement from the gap between the longitudinal reinforcements, and vibrates and knocks the concrete on the inner side of the longitudinal reinforcement to knock out part of the concrete and expose the longitudinal reinforcement. Then, the dynamic hydraulic device is retracted, lifted for a distance, and then the pile head is repeatedly knocked to expose the longitudinal reinforcement. This is repeated until the entire pile head is knocked and the longitudinal reinforcement of the pile head is completely exposed. The forklift bends the longitudinal reinforcement slightly outward to remove the concrete on the inner side of the longitudinal reinforcement.

[0003] According to the "Synchronous Drilling Structure of a Pile Breaker Bit Group" disclosed in Chinese Patent Publication No. CN219410857U, by adjusting the throttle valve opening of each oil cylinder, back pressure is formed to ensure that the resistance of each oil cylinder when moving forward is basically the same, so that the drill bits are synchronously drilled and the speed is basically the same, ensuring that each group of drill bits contacts the concrete pile at the same time. Synchronous drilling ensures that the pile breaker is concentric with the concrete pile as a whole, avoiding the problem of unevenness and easy deflection when the pile breaker breaks the pile, and the different depths of each drill bit cutting into the concrete, ensuring the pile breaking effect of the pile breaker.

[0004] However, the above device has the problem that when the pile breaker needs to be repaired, it is inconvenient to disassemble and replace the drill frame and the drill bit, which affects the crushing efficiency. Utility Model Content

[0005] The utility model aims to provide a synchronous drill-out structure of a pile breaker drill bit assembly to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a synchronous drill-out structure of a pile breaker drill head assembly, comprising a disassembly structure and a drill-out structure, wherein the outer wall of the disassembly structure is provided with the drill-out structure;

[0007] The disassembly structure includes a drill rack, a right outer wall of the drill rack is fixedly connected to a connecting block, an outer surface of the connecting block is provided with a through groove, a left outer wall of the drill rack is provided with an installation groove, a clamping block is arranged inside the installation groove, the outer wall of the clamping block is fixedly connected to a connecting rod, and the end of the connecting rod away from the clamping block is fixedly connected to a sliding plate.

[0008] Preferably, the sliding sleeve on the outer wall of the sliding plate is provided with a sliding frame, a fixing block is fixedly installed at the bottom of the sliding frame, a positioning groove is opened at the top of the drill rack, and the fixing block is movably connected in the positioning groove.

[0009] Preferably, a reset spring is fixedly connected to the bottom of the block, and the bottom of the reset spring is fixedly connected to the inner wall of the drill frame. A strong spring is fixedly connected to the bottom of the sliding plate, and the bottom of the strong spring is fixedly connected to the inner wall of the sliding frame.

[0010] Preferably, the drill bit output structure comprises a piston cylinder, a throttle valve is arranged on the top of the piston cylinder, a piston rod is fixedly connected to the output end of the piston cylinder, and a drill bit is clamped on the top of the piston rod.

[0011] Preferably, a fixing groove is formed on the inner wall of the piston rod, a positioning block is arranged inside the fixing groove, and the positioning block is positioned in a semicircular shape.

[0012] Preferably, a positioning spring is fixedly connected to the inner bottom wall of the fixing groove, and the top of the positioning spring is fixedly connected to the bottom of the positioning block.

[0013] Preferably, a positioning groove is provided on the outer surface of the drill bit, and the shape and size of the positioning groove are matched with the shape and size of the fixing groove.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0015] The cam is then pulled out of the way and the lever is released, and the cam is released from the left side of the support frame, and the cam is released from the right side of the support frame, and the cam is released from the left side of the support frame, and the cam is released from the right side of the support frame, so that the cam is released from the right ...

[0016] Secondly, the utility model inserts the bottom of the drill bit into the piston rod and rotates the drill bit through the thread. When the positioning groove on the drill bit is aligned with the fixed groove in the piston rod, the positioning spring in the fixed groove exerts an outward force on the positioning block, so that the positioning block is separated from the fixed groove and inserted into the positioning groove, thereby completing the installation and fixation of the drill bit. The utility model is easy to disassemble and assemble, and it is convenient for the staff to replace the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the right side structure of the drill stand of the utility model;

[0019] Figure 3 It is a schematic diagram of the left side structure of the drill stand of the utility model;

[0020] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0021] Figure 5 For the utility model Figure 4 A is an enlarged schematic diagram of the structure.

[0022] Wherein: 1. disassembly structure; 101. drill frame; 102. connection block; 103. through groove; 104. installation groove; 105. clamping block; 106. connecting rod; 107. sliding plate; 108. sliding frame; 109. fixing block; 110. reset spring; 111. strong spring; 2. drill removal structure; 201. piston cylinder; 202. throttle valve; 203. piston rod; 204. drill bit; 205. fixing groove; 206. positioning block; 207. positioning spring; 208. positioning groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides the following technical solutions:

[0025] Embodiment 1

[0026] See also Figure 1-5 A synchronous drill-out structure for a pile breaker drill head assembly comprises a disassembly structure 1 and a drill-out structure 2, wherein the outer wall of the disassembly structure 1 is provided with the drill-out structure 2;

[0027] The disassembly structure 1 includes a drill rack 101, a connecting block 102 is fixedly connected to the right outer wall of the drill rack 101, a through groove 103 is provided on the outer surface of the connecting block 102, an installation groove 104 is provided on the left outer wall of the drill rack 101, a clamping block 105 is arranged inside the installation groove 104, a connecting rod 106 is fixedly connected to the outer wall of the clamping block 105, and a sliding plate 107 is fixedly connected to the end of the connecting rod 106 away from the clamping block 105.

[0028] The outer wall of the sliding plate 107 is slidably sleeved with a sliding frame 108, the bottom of the sliding frame 108 is fixedly installed with a fixing block 109, and the top of the drill frame 101 is provided with a positioning groove, and the fixing block 109 is movably connected in the positioning groove.

[0029] The bottom of the block 105 is fixedly connected with a return spring 110, and the bottom of the return spring 110 is fixedly connected to the inner wall of the drill frame 101. The bottom of the sliding plate 107 is fixedly connected with a strong spring 111, and the bottom of the strong spring 111 is fixedly connected to the inner wall of the sliding frame 108.

[0030] Through the above technical solution, by pulling the slide frame 108 upward, the fixed block 109 is driven to disengage from the positioning groove, and then the slide frame 108 is pulled outward to drive the connecting rod 106 to move outward, and the connecting rod 106 drives the clamping block 105 to move outward, so that the clamping block 105 is disengaged from the through groove 103 on the connecting block 102, and the connecting block 102 is pulled out from the left side of the drill frame 101, and the limit fixation of the drill frame 101 is released, so that the drill frame 101 can be disassembled, thereby facilitating quick replacement, and the structure is simple. The structure is simple and easy to assemble and disassemble, which improves the working efficiency of the pile breaker. By inserting the connecting block 102 into the mounting groove 104 on the left side of the drill frame 101, the clamping block 105 moves inward under the action of the reset spring 110, and the clamping block 105 is inserted into the through groove 103 on the connecting block 102 to limit and fix the drill frame 101. The sliding frame 108 moves downward under the action of the strong spring 111, and drives the fixing block 109 to be inserted into the positioning groove, thereby improving the stability of the drill frame 101 when it is installed and used.

[0031] Embodiment 2

[0032] See also Figure 1-5 , and on the basis of the first embodiment, further obtained: a synchronous drill-out structure of a pile breaker drill head group, comprising a disassembly structure 1 and a drill-out structure 2, wherein the outer wall of the disassembly structure 1 is provided with the drill-out structure 2;

[0033] The disassembly structure 1 includes a drill rack 101, a connecting block 102 is fixedly connected to the right outer wall of the drill rack 101, a through groove 103 is provided on the outer surface of the connecting block 102, an installation groove 104 is provided on the left outer wall of the drill rack 101, a clamping block 105 is arranged inside the installation groove 104, a connecting rod 106 is fixedly connected to the outer wall of the clamping block 105, and a sliding plate 107 is fixedly connected to the end of the connecting rod 106 away from the clamping block 105.

[0034] The drill bit structure 2 comprises a piston cylinder 201 , a throttle valve 202 is arranged on the top of the piston cylinder 201 , a piston rod 203 is fixedly connected to the output end of the piston cylinder 201 , and a drill bit 204 is clamped on the top of the piston rod 203 .

[0035] A fixing groove 205 is formed on the inner wall of the piston rod 203 . A positioning block 206 is disposed inside the fixing groove 205 . The positioning block 206 is positioned in a semicircular shape.

[0036] A positioning spring 207 is fixedly connected to the inner bottom wall of the fixing groove 205 , and the top of the positioning spring 207 is fixedly connected to the bottom of the positioning block 206 .

[0037] A positioning groove 208 is formed on the outer surface of the drill bit 204 , and the shape and size of the positioning groove 208 match those of the fixing groove 205 .

[0038] Through the above technical scheme, by inserting the bottom of the drill bit 204 into the piston rod 203 and rotating the drill bit 204 through the thread, when the positioning groove 208 on the drill bit 204 is aligned with the fixed groove 205 in the piston rod 203, the positioning spring 207 in the fixed groove 205 gives the positioning block 206 an outward force, so that the positioning block 206 is separated from the fixed groove 205 and stuck in the positioning groove 208, the installation and fixation of the drill bit 204 is completed, the disassembly and assembly are convenient, and it is convenient for the staff to replace the drill bit 204. By setting the throttle valve 202 to adjust the opening of the throttle valve 202 of each piston cylinder 201, back pressure is formed to ensure that the resistance of each piston cylinder 201 when moving forward is basically the same, thereby ensuring that the drill bits 204 are synchronously drilled and the speed is basically the same.

[0039] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these specific embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A synchronous drill removal structure for a pile breaker drill bit assembly, comprising a disassembly structure (1) and a drill removal structure (2), characterized in that: The outer wall of the disassembly structure (1) is provided with a drill outlet structure (2); The disassembly structure (1) comprises a drill frame (101), a connection block (102) is fixedly connected to the right outer wall of the drill frame (101), a through groove (103) is provided on the outer surface of the connection block (102), a mounting groove (104) is provided on the left outer wall of the drill frame (101), a clamping block (105) is arranged inside the mounting groove (104), a connection rod (106) is fixedly connected to the outer wall of the clamping block (105), and a sliding plate (107) is fixedly connected to one end of the connection rod (106) away from the clamping block (105).

2. A synchronous drill-out structure for a pile breaker drill bit assembly according to claim 1, characterized in that: The outer wall of the sliding plate (107) is slidably sleeved with a sliding frame (108), the bottom of the sliding frame (108) is fixedly mounted with a fixing block (109), the top of the drill frame (101) is provided with a positioning groove, and the fixing block (109) is movably clamped in the positioning groove.

3. A synchronous drill-out structure for a pile breaker drill bit assembly according to claim 1, characterized in that: The bottom of the block (105) is fixedly connected to a return spring (110), and the bottom of the return spring (110) is fixedly connected to the inner wall of the drill frame (101). The bottom of the sliding plate (107) is fixedly connected to a strong spring (111), and the bottom of the strong spring (111) is fixedly connected to the inner wall of the sliding frame (108).

4. A synchronous drill-out structure for a pile breaker drill bit assembly according to claim 1, characterized in that: The drill bit structure (2) comprises a piston cylinder (201), a throttle valve (202) is arranged on the top of the piston cylinder (201), a piston rod (203) is fixedly connected to the output end of the piston cylinder (201), and a drill bit (204) is clamped on the top of the piston rod (203).

5. A synchronous drill-out structure for a pile breaker drill bit assembly according to claim 4, characterized in that: The inner wall of the piston rod (203) is provided with a fixing groove (205), and a positioning block (206) is arranged inside the fixing groove (205), and the positioning block (206) is positioned in a semicircular shape.

6. A synchronous drill-out structure for a pile breaker drill bit assembly according to claim 5, characterized in that: A positioning spring (207) is fixedly connected to the inner bottom wall of the fixing groove (205), and the top of the positioning spring (207) is fixedly connected to the bottom of the positioning block (206).

7. A synchronous drill-out structure for a pile breaker drill bit assembly according to claim 4, characterized in that: The outer surface of the drill bit (204) is provided with a positioning groove (208), and the shape and size of the positioning groove (208) are matched with the shape and size of the fixing groove (205).

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