A cement mixing pile cutting device

Abstract

The application provides a cement mixing pile head cutting device, and relates to the technical field of pile head cutting, which comprises a cutting driving part, a cutting part is installed on the cutting driving part, the cutting part is used for cutting the pile head, a shielding protection part is installed on the cutting driving part, the shielding protection part is used for preventing splash damage, a floating compensation part is installed on the cutting driving part, and the floating compensation part is used for compensating the cutting elevation; four laser lamps are used to facilitate the positioning of adjacent pile heads that have been cut through laser positioning, the floating compensation part is used to quickly control the upward movement of the cutting blade and compensate the height between the cutting blade and the four laser lamps, so as to solve the problems that the current cement mixing pile head cutting device is not convenient for quickly positioning the cutting height, the traditional laser marking method is prone to splash damage, and it is inconvenient to limit the cutting position of the workers.

Description

Technical Field

[0001] This invention relates to the field of pile head cutting technology, and in particular to a pile head cutting device for cement mixing piles. Background Technology

[0002] Cement mixing piles are a common form of foundation reinforcement. They contain no internal steel reinforcement; the concrete is directly poured into ground-level pile holes and then mixed to solidify. After the actual construction of cement mixing piles is completed, the pile heads need to be cut to facilitate subsequent foundation construction. It is necessary to keep the tops of all cement mixing piles flush. The equipment used for cutting cement mixing pile heads mainly uses excavator-mounted cutting equipment, which is widely used due to its efficiency and speed. However, current cement mixing pile head cutting equipment still requires tedious manual measurement of the cutting position, affecting cutting efficiency and hindering quick positioning of the cutting height. Furthermore, traditional laser marking methods are prone to damage from debris and do not easily restrict the cutting position for workers. With traditional pile head cutting methods, if the pile head above the cut is long, the downward pressure after cutting a certain distance is greater, making it easy to trap the cutting blade. In addition, the higher weight of the pile head increases the breakage rate when the blade rotates and vibrates at high speed near the cut, making it difficult to restrict segmented cutting. Larger pile heads after cutting are also inconvenient for manual handling. Summary of the Invention

[0003] This disclosure relates to a pile head cutting device for cement mixing piles, which solves the problems of current pile head cutting devices for cement mixing piles being inconvenient to quickly determine the cutting height, and the traditional laser marking method being easily damaged by splashes and also not convenient to restrict the cutting position of workers.

[0004] In a first aspect, this disclosure provides a pile head cutting device for cement mixing piles, specifically including a cutting drive unit, on which a cutting component is mounted; the cutting component is used to cut the pile head; a shielding and protective component is mounted on the cutting drive unit; the shielding and protective component is used to prevent splash damage; a floating compensation component is mounted on the cutting drive unit; the floating compensation component is used to compensate for the cutting elevation; a segmenting limiting component is mounted on the cutting drive unit; a shielding component is mounted on the segmenting limiting component; the segmenting limiting component is used to prevent the pile head cutting length from being too high; the cutting drive unit further includes: a motor housing, a cutting motor, and a motor switch, wherein a sliding groove is provided on the rear side of the motor housing; a motor switch is fixedly mounted on the bottom of the motor housing; the cutting motor is fixedly mounted inside the motor housing, and the output shaft of the cutting motor passes through the motor housing.

[0005] In at least some embodiments, the cutting drive unit further includes: a rotary sleeve, laser lamps, and a rotating shaft. The rotary sleeve is fixedly installed on the bottom of the motor housing by bolts. Four laser lamps are inserted into the bottom of the rotary sleeve, and the four laser lamps are in a straight line. The rotating shaft is fixedly installed on the output shaft of the cutting motor. The rotating shaft is rotatably sleeved on the rotary sleeve, and the end of the rotating shaft is provided with a threaded hole. The bottom of the rotating shaft is provided with two protrusions.

[0006] In at least some embodiments, the cutting drive unit further includes a baffle plate, which is fixedly mounted on the rotating shaft.

[0007] In at least some embodiments, the cutting component includes: a cutting blade, a positioning bolt, and a fracturing drill bit. The cutting blade is inserted into two protrusions at the bottom of the rotating shaft. The positioning bolt is inserted into the cutting blade and is threaded to the bottom of the rotating shaft. The fracturing drill bit is fixedly installed at the bottom of the positioning bolt, and the end of the fracturing drill bit has a tapered structure.

[0008] In at least some embodiments, the shielding protection component includes: a protective sleeve and a protective electromagnet, the protective sleeve being slidably fitted onto a rotating sleeve; a silicone sleeve is provided on the inner side of the bottom of the rotating sleeve; two protective electromagnets are fixedly installed on the inner side of the protective sleeve, and the two protective electromagnets are used to magnetically attract the rotating sleeve; the protective sleeve is used to protect four laser lights; and the anti-blocking paddle is located on the outer side of the protective sleeve.

[0009] In at least some embodiments, the shielding protection component further includes: a tension spring, wherein the tension spring is sleeved on the rotary sleeve and one end of the tension spring is connected to the rotary sleeve; the other end of the tension spring is fixedly mounted on the protective sleeve.

[0010] In at least some embodiments, the floating compensation component includes: a compensation slider and a lifting hydraulic cylinder, wherein the lifting hydraulic cylinder is fixedly mounted on the compensation slider; the compensation slider is slidably mounted in a groove on the rear side of the motor housing; the output shaft of the lifting hydraulic cylinder is connected to the groove on the rear side of the motor housing; the compensation slider is provided with a pin hole for docking with an excavator; the compensation slider is located above the motor switch; the motor switch is electrically connected to the cutting motor and the protective electromagnet.

[0011] In at least some embodiments, the segmented limiting component includes: a limiting sliding shell and a safety switch, wherein the limiting sliding shell is fixedly mounted on the rotary sleeve by bolts; a ring of safety switches is fixedly mounted on the limiting sliding shell, and the ends of the ring of safety switches pass through the limiting sliding shell respectively; the safety switch is electrically connected to the cutting motor.

[0012] In at least some embodiments, the segmented limiting member further includes: a compression spring, wherein the compression spring has a ring, and one end of the ring of compression springs is fixedly installed on the inner side of the limiting sliding shell; the ring of compression springs is a V-shaped structure.

[0013] In at least some embodiments, the shielding member includes: a sliding ring frame and a rubber ring, wherein the sliding ring frame is slidably mounted on the limiting sliding shell; the sliding ring frame is located outside the limiting sliding shell; the other end of the compression spring is connected to the inner side of the sliding ring frame; the inner side of the sliding ring frame has an inclined surface structure; and the rubber ring is fixedly mounted on the sliding ring frame.

[0014] This invention provides a pile head cutting device for cement mixing piles, which has the following beneficial effects:

[0015] In this invention, a cutting blade is used to directly cut the pile head. A baffle plate can rotate with the cutting blade. When the cutting position is low and there is soil around the pile head, soil or stones are prevented from accumulating above the cutting blade and obstructing the displacement of the rotating sleeve, thus affecting the normal movement and cutting of the cutting blade. The use of a fracturing drill bit makes it easy to fracture and break the cut pile head, which facilitates subsequent handling and transfer by the workers.

[0016] Furthermore, using four laser lights facilitates the positioning of adjacent already-cut pile heads using lasers. During actual pile head cutting, only the initial measurement of the first pile head is required, effectively improving subsequent cutting efficiency and eliminating the need for tedious re-measurement and layout. The method of positioning adjacent already-cut pile heads also reduces interference and eliminates obstructions. Combined with a floating compensation component, the cutting blade can be quickly controlled to rise, compensating for the height difference between the cutting blade and the four laser lights, ensuring subsequent cutting accuracy. Simultaneously, a motor switch can be used to control the downward movement of the obstruction protection component during cutting to protect the four laser lights, extending their lifespan and preventing scratches from splashes.

[0017] In addition, using shielding components in conjunction with segmented limiting components can help remind workers when the length of the pile head exceeds the limit, which can improve the cutting quality, ensure a flat cutting surface, and prevent the downward pressure from being too great when the pile head is long above the cutting edge, which could easily cause the cutting blade to get stuck and become jammed. It also reduces the breakage rate of the pile head. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram:

[0021] Figure 1 A schematic diagram of the overall structure of a cement mixing pile head cutting device according to this application is shown;

[0022] Figure 2 A schematic diagram of the bottom structure of a cement mixing pile head cutting device according to this application is shown;

[0023] Figure 3 A cross-sectional view of the internal structure of a cement mixing pile head cutting device according to this application is shown.

[0024] Figure 4 A schematic diagram of the overall structure of the cutting drive unit of this application is shown;

[0025] Figure 5 A schematic diagram of the installation position of the anti-blocking paddle in this application is shown;

[0026] Figure 6 A schematic diagram of the overall structure of the cutting component of this application is shown;

[0027] Figure 7 This application shows Figure 2 Enlarged view of the structure of region B in the middle;

[0028] Figure 8 A schematic diagram of the overall structure of the shielding and protective component of this application is shown;

[0029] Figure 9 This application shows Figure 3 Enlarged view of the structure of region C in the middle;

[0030] Figure 10 A schematic diagram of the overall structure of the segmented limiting component of this application is shown;

[0031] Figure 11 A schematic diagram of the installation position of the extrusion spring of this application is shown.

[0032] List of reference numerals in the attached diagram:

[0033] 1. Cutting drive unit; 101. Motor housing; 1011. Cutting motor; 102. Motor switch; 103. Rotary sleeve; 104. Laser lamp; 105. Shaft; 106. Anti-blocking paddle; 2. Cutting parts; 201. Cutting blade; 202. Positioning bolt; 203. Expansion drill bit; 3. Shielding protection parts; 301. Protective sleeve; 302. Protective electromagnet; 303. Tension spring; 4. Floating compensation parts; 401. Compensating slider; 402. Lifting hydraulic cylinder; 5. Segmentation limiting parts; 501. Limiting sliding shell; 502. Safety switch; 503. Extrusion spring; 6. Shielding parts; 601. Sliding ring frame; 602. Rubber ring. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figures 1 to 11 :

[0036] This invention proposes a pile head cutting device for cement mixing piles, including a cutting drive unit 1, on which a cutting component 2 is installed; the cutting component 2 is used to cut the pile head; a shielding and protective component 3 is installed on the cutting drive unit 1; the shielding and protective component 3 is used to prevent splash damage; a floating compensation component 4 is installed on the cutting drive unit 1; the floating compensation component 4 is used to compensate for the cutting elevation; a segmentation limiting component 5 is installed on the cutting drive unit 1; a shielding component 6 is installed on the segmentation limiting component 5; the segmentation limiting component 5 is used to prevent the pile head cutting length from being too high; the cutting drive unit 1 also includes: a motor housing 101, a cutting motor 1011, and a motor switch 102, with a sliding groove provided on the rear side of the motor housing 101; the motor switch 102 is fixedly installed at the bottom of the motor housing 101; the cutting motor 1011 is fixedly installed inside the motor housing 101, and the output shaft of the cutting motor 1011 passes through the motor housing 101.

[0037] In this embodiment, the cutting drive unit 1 further includes: a rotary sleeve 103, laser lamps 104, and a rotating shaft 105. The rotary sleeve 103 is fixedly mounted on the bottom of the motor housing 101 by bolts; four laser lamps 104 are inserted into the bottom of the rotary sleeve 103, and the four laser lamps 104 are in a straight line; the rotating shaft 105 is fixedly mounted on the output shaft of the cutting motor 1011; the rotating shaft 105 is rotatably sleeved on the rotary sleeve 103, and the end of the rotating shaft 105 is provided with a threaded hole; the bottom of the rotating shaft 105... The cutting drive unit 1 includes two protruding posts; the cutting drive unit 1 also includes a guard plate 106, which is fixedly mounted on the rotating shaft 105; the cutting component 2 includes a cutting blade 201, a positioning bolt 202, and a fracturing drill bit 203. The cutting blade 201 is inserted into the two protruding posts at the bottom of the rotating shaft 105; the positioning bolt 202 is inserted into the cutting blade 201 and threadedly connected to the bottom of the rotating shaft 105; the fracturing drill bit 203 is fixedly mounted at the bottom of the positioning bolt 202. The drill bit 203 has a tapered end and uses a cutting drive unit 1, which facilitates flexible control after docking with the excavator. It is also more suitable for mounting the larger radius cutting blade 201. The cutting blade 201 can directly cut the pile head. The anti-blocking plate 106 can rotate with the cutting blade 201. When the cutting position is low and there is soil around the pile head, it prevents soil or stones from accumulating on top of the cutting blade 201 and obstructing the displacement of the rotating sleeve 103, thus affecting the normal movement and cutting of the cutting blade 201. The expansion drill bit 203 can facilitate the expansion and cracking of the cut pile head, which facilitates subsequent handling and transfer by the workers. It avoids the difficulty of handling heavy pile heads. Driven by the cutting motor 1011, the cutting blade 201 can be rotated at high speed to cut the pile head. During the process, the anti-blocking plate 106 also rotates in real time to prevent soil from accumulating on top of the cutting blade 201. The tapered structure of the expansion drill bit 203 assists in the expansion and cracking of the cut pile head, making it easier to handle with less effort.

[0038] In this embodiment, the shielding protection component 3 includes: a protective sleeve 301 and a protective electromagnet 302. The protective sleeve 301 is slidably sleeved on the rotary sleeve 103. A silicone sleeve is provided on the inner side of the bottom of the rotary sleeve 103. Two protective electromagnets 302 are fixedly installed on the inner side of the protective sleeve 301, and the two protective electromagnets 302 are used to magnetically attract the rotary sleeve 103. The protective sleeve 301 is used to sleeve and protect four laser lights 104. An anti-blocking paddle 106 is located on the outer side of the protective sleeve 301. The shielding protection component 3 also includes: a tension spring 303, which is sleeved on the rotary sleeve 103, and the end of the tension spring 303 is connected to the rotary sleeve 103. On the rotating sleeve 103; the other end of the tension spring 303 is fixedly installed on the protective sleeve 301; the floating compensation component 4 includes: a compensation slider 401 and a lifting hydraulic cylinder 402, the lifting hydraulic cylinder 402 is fixedly installed on the compensation slider 401; the compensation slider 401 is slidably installed in the slide groove on the rear side of the motor housing 101; the output shaft of the lifting hydraulic cylinder 402 is connected in the slide groove on the rear side of the motor housing 101; the compensation slider 401 is provided with a pin hole for docking with the excavator; the compensation slider 401 is located above the motor switch 102; the motor switch 102 is electrically connected to the cutting motor 1011 and the protective electromagnet 302, using four The laser lamp 104 facilitates the positioning of adjacent already-cut pile heads using laser light. During actual pile head cutting, only the initial measurement of the first pile head is required, effectively improving subsequent cutting efficiency and eliminating the need for tedious re-measurement and layout. Furthermore, the method of positioning adjacent already-cut pile heads reduces interference and eliminates obstruction. Combined with the floating compensation component 4, the rising of the cutting blade 201 can be quickly controlled, compensating for the height difference between the cutting blade 201 and the four laser lamps 104, ensuring subsequent cutting accuracy. Simultaneously, the motor switch 102 can control obstruction protection during cutting operations. Component 3 moves down to protect the four laser lights 104, ensuring their service life and preventing scratches from splashes. The structure and operation are simple. The rays of the four laser lights 104 are aligned with the edge of the cut pile head, and then the output shaft of the lifting hydraulic cylinder 402 is extended to push the motor housing 101 to drive the cutting blade 201 upward. When the motor housing 101 moves upward, it will drive the motor switch 102 to move the bottom of the compression compensation slider 401. At this time, the cutting motor 1011 will start. At the same time, it will control the protective electromagnet 302 to quickly turn on the electromagnetic pull and pull the rotating sleeve 103 down to block the outside of the four laser lights 104.

[0039] In Example 2, based on Example 1, the segmented limiting component 5 includes: a limiting sliding shell 501 and a safety switch 502. The limiting sliding shell 501 is fixedly mounted on the rotary sleeve 103 by bolts; a ring of safety switches 502 is fixedly mounted on the limiting sliding shell 501, and the ends of the ring of safety switches 502 pass through the limiting sliding shell 501 respectively; the safety switches 502 are electrically connected to the cutting motor 1011; the segmented limiting component 5 also includes: a compression spring 503, the compression spring 503... 03 is provided with a ring, one end of which of the ring of compression springs 503 is fixedly installed on the inner side of the limiting sliding shell 501; the ring of compression springs 503 are V-shaped structures; the blocking component 6 includes: a sliding ring frame 601 and a rubber ring 602, the sliding ring frame 601 is slidably installed on the limiting sliding shell 501; the sliding ring frame 601 is located on the outer side of the limiting sliding shell 501; the other end of the ring of compression springs 503 is connected to the inner side of the sliding ring frame 601; the inner side of the sliding ring frame 601 is a sloped structure; the sliding ring... A rubber ring 602 is fixedly installed on the frame 601. The use of a shield 6 and a segmented limiting component 5 can help remind workers when the length of the pile being cut exceeds the limit, thus avoiding excessive cutting height, improving cutting quality, ensuring a flat cut surface, and preventing the cutting blade 201 from getting stuck when the pile is long above the cut. Furthermore, when the pile is long above the cut, the downward pressure after cutting a certain distance is greater, which can easily cause the cutting blade 201 to become stuck. Also, heavier piles are prone to breakage before being completely cut due to the high-speed rotation and vibration of the cutting blade 201 when the cutting is close to the cut. This structure is simple to control and improves cutting standardization. Utilizing the gap between the sliding ring frame 601 and the cutting blade 201, if the cutting is moved directly to the side of a longer pile, the longer pile will squeeze the rubber ring 602, driving the sliding ring frame 601 to shift and press the safety switch 502. At this time, the pressed safety switch 502 can control the cutting motor 1011 to cut off the power, assisting in reminding workers.

[0040] The working principle of this embodiment is as follows: First, when cutting is required, the initial cutting position of the first pile head is measured. The output shaft of the lifting hydraulic cylinder 402 is extended, squeezing the motor switch 102. After cutting by the cutting blade 201, subsequent pile head cutting is first aligned with the edge of the cut pile head by the rays of the four laser lights 104. Then, the output shaft of the lifting hydraulic cylinder 402 is extended, pushing the motor housing 101 to move the cutting blade 201 upward. When the motor housing 101 moves upward, it will drive the motor switch 102 to move the bottom of the compression compensation slider 401. At this time, the cutting motor 101... The system will start when the cutting blade 201 rotates and cuts. At the same time, it will also control the protective electromagnet 302 to quickly attract the rotating sleeve 103, thereby stretching the tension spring 303. The rotating sleeve 103 can then move down to block the four laser lights 104 to avoid cutting damage. During the process, the anti-blocking plate 106 also rotates in real time to prevent soil from accumulating above the cutting blade 201. After the pile head is cut, the rotating shaft 105 can continue to rotate, driving the expansion drill bit 203 to rotate as well. It presses down and drills into the cut pile head. The conical structure of the expansion drill bit 203 assists in expanding and cracking the cut pile head, making it easier to handle with less effort.

[0041] When cutting the pile head, if the pile head is long, it needs to be cut in multiple stages. If the cutting is done by moving the longer pile head directly along the side, the longer pile head will squeeze the rubber ring 602, causing the sliding ring frame 601 to shift. The elastic support of the compression spring 503 will prevent jamming. However, when the sliding ring frame 601 moves, the inner inclined surface will squeeze the safety switch 502. At this time, the squeezed safety switch 502 can control the cutting motor 1011 to cut off the power, preventing continuous cutting and prompting the cutting work to be done in stages.

[0042] The following points should be noted in this article:

[0043] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0044] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0045] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A pile head cutting device for cement mixing piles, comprising a cutting drive unit (1), wherein a cutting component (2) is mounted on the cutting drive unit (1); characterized in that: The cutting component (2) is used to cut the pile head; a shielding and protective component (3) is installed on the cutting drive unit (1); the shielding and protective component (3) is used to prevent splash damage; A floating compensation component (4) is installed on the cutting drive unit (1); the floating compensation component (4) is used to compensate for the cutting elevation; A segmented limiting member (5) is installed on the cutting drive unit (1); a shielding member (6) is installed on the segmented limiting member (5); the segmented limiting member (5) is used to prevent the pile head cutting length from being too high; The cutting drive unit (1) further includes: a motor housing (101), a cutting motor (1011) and a motor switch (102). The motor housing (101) has a sliding groove on the rear side. The motor switch (102) is fixedly installed at the bottom of the motor housing (101). The cutting motor (1011) is fixedly installed inside the motor housing (101), and the output shaft of the cutting motor (1011) passes through the motor housing (101).

2. The pile head cutting device for cement mixing piles according to claim 1, characterized in that, The cutting drive unit (1) further includes: a rotary sleeve (103), a laser lamp (104), and a rotating shaft (105). The rotary sleeve (103) is fixedly installed at the bottom of the motor housing (101) by bolts. Four laser lamps (104) are inserted into the bottom of the rotary sleeve (103), and the four laser lamps (104) are in a straight line. The rotating shaft (105) is fixedly installed on the output shaft of the cutting motor (1011). The rotating shaft (105) is rotatably sleeved on the rotary sleeve (103), and the end of the rotating shaft (105) is provided with a threaded hole. The bottom of the rotating shaft (105) is provided with two protruding posts.

3. The pile head cutting device for cement mixing piles according to claim 2, characterized in that, The cutting drive unit (1) further includes a baffle plate (106), which is fixedly mounted on the rotating shaft (105).

4. The pile head cutting device for cement mixing piles according to claim 2, characterized in that, The cutting component (2) includes: a cutting blade (201), a positioning bolt (202), and a fracturing drill bit (203). The cutting blade (201) is inserted into two protrusions at the bottom of the rotating shaft (105). The positioning bolt (202) is inserted into the cutting blade (201) and is threaded to the bottom of the rotating shaft (105). The fracturing drill bit (203) is fixedly installed at the bottom of the positioning bolt (202) and has a tapered end.

5. The pile head cutting device for cement mixing piles according to claim 3, characterized in that, The shielding protection component (3) includes: a protective sleeve (301) and a protective electromagnet (302). The protective sleeve (301) is slidably sleeved on the rotary sleeve (103). A silicone sleeve is provided on the inner side of the bottom of the rotary sleeve (103). Two protective electromagnets (302) are fixedly installed on the inner side of the protective sleeve (301), and the two protective electromagnets (302) are used to magnetically attract the rotary sleeve (103). The protective sleeve (301) is used to sleeve and protect four laser lights (104). The anti-blocking paddle (106) is located on the outside of the protective sleeve (301).

6. The pile head cutting device for cement mixing piles according to claim 5, characterized in that, The shielding and protective component (3) further includes: a tension spring (303), on which the rotating sleeve (103) is fitted with a tension spring (303), and the end of the tension spring (303) is connected to the rotating sleeve (103); the other end of the tension spring (303) is fixedly installed on the protective sleeve (301).

7. The pile head cutting device for cement mixing piles according to claim 5, characterized in that, The floating compensation component (4) includes: a compensation slider (401) and a lifting hydraulic cylinder (402). The lifting hydraulic cylinder (402) is fixedly installed on the compensation slider (401). The compensation slider (401) is slidably installed in a groove on the rear side of the motor housing (101). The output shaft of the lifting hydraulic cylinder (402) is connected to the groove on the rear side of the motor housing (101). The compensation slider (401) is provided with a pin hole for docking with the excavator. The compensation slider (401) is located above the motor switch (102). The motor switch (102) is electrically connected to the cutting motor (1011) and the protective electromagnet (302).

8. The pile head cutting device for cement mixing piles according to claim 2, characterized in that, The segmented limiting component (5) includes: a limiting sliding shell (501) and a safety switch (502). The limiting sliding shell (501) is fixedly installed on the rotary sleeve (103) by bolts. A ring of safety switches (502) is fixedly installed on the limiting sliding shell (501), and the ends of the ring of safety switches (502) pass through the limiting sliding shell (501) respectively. The safety switch (502) is electrically connected to the cutting motor (1011).

9. The pile head cutting device for cement mixing piles according to claim 8, characterized in that, The segmented limiting component (5) further includes: a compression spring (503), which has a ring, and one end of the ring of compression springs (503) is fixedly installed inside the limiting sliding shell (501); the ring of compression springs (503) has a V-shaped structure.

10. The pile head cutting device for cement mixing piles according to claim 9, characterized in that, The shielding component (6) includes a sliding ring frame (601) and a rubber ring (602). The sliding ring frame (601) is slidably mounted on the limiting sliding shell (501). The sliding ring frame (601) is located outside the limiting sliding shell (501). The other end of the compression spring (503) is connected to the inner side of the sliding ring frame (601). The inner side of the sliding ring frame (601) is a sloped structure. The rubber ring (602) is fixedly mounted on the sliding ring frame (601).

Images