Novel pile grinding machine

Abstract

The utility model belongs to the technical field of tubular piles, and particularly relates to a novel pile grinding machine. The pile grinding machine comprises a power traveling crane, the top of the power traveling crane is provided with an unfolding arm connected through a rotating shaft assembly, one end of the unfolding arm is provided with a pile grinding head, the other end of the unfolding arm is provided with a balance weight or the pile grinding head, and the pile grinding head is connected with the unfolding arm through a vertical telescopic mechanism and comprises a rotating shaft driven by a first motor and a bearing seat sleeved with the rotating shaft. A pile grinding disc is connected below the rotating shaft, a plurality of fins are arranged on the pile grinding disc in the radial direction, a plurality of grinding teeth are installed on the lower side edges of the fins, and the power traveling crane, the pile grinding head first motor and the vertical telescopic mechanism are all electrically connected with a plc. The novel pile grinding machine is simple in structure and convenient to operate and has the advantages of being good in grinding quality and high in leveling efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe piles, and specifically relates to a novel pile grinding machine. Background Art

[0002] Cement-soil mixing piles use cement as the main agent of the curing agent. Through special deep mixing machinery, the soft soil and curing agent are forcibly mixed in situ deep in the foundation to harden the soft soil and improve the foundation strength. After the construction is completed, it is usually necessary to grind and clean the exposed part of the ground.

[0003] The existing pile grinding process is realized by manual grinding or making a simple mechanical human-operated method. The pile head is manually ground to a position 10 cm from the ground and the pile head is leveled by cutting. This is not only affected by uncontrollable factors such as labor, the pile grinding effect is uneven, and it also causes waste of labor and materials. Utility Model Content

[0004] The utility model aims to provide a novel pile grinding machine with simple structure and convenient operation, which has the characteristics of good grinding quality and high leveling efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A new type of pile grinding machine, characterized in that it includes a power crane, a spread arm connected by a rotating shaft assembly is arranged on the top of the power crane, a pile grinding head is arranged at one end of the spread arm, and a counterweight or a pile grinding head is arranged at the other end, the pile grinding head is connected to the spread arm through a vertical telescopic mechanism, the pile grinding head includes a rotating shaft driven by a first motor, a bearing seat mounted on the rotating shaft, a pile grinding disk is connected below the rotating shaft, a plurality of fins are radially arranged on the pile grinding disk, and a plurality of grinding teeth are installed on the lower side edges of the fins, and the power crane, the first motor of the pile grinding head and the vertical telescopic mechanism are all electrically connected to a PLC controller.

[0007] Additional technical features of the novel pile grinding machine include:

[0008] The vertical telescopic mechanism is a vertical cylinder arranged on the extension arm, and the piston rod of the vertical cylinder is connected to the bearing seat of the pile grinding head;

[0009] ——A lifting ring is arranged above the bearing seat of the pile grinding head, and a reel driven by a reduction motor is arranged on the expansion arm, and a lifting rope wound on the reel is connected to the lifting ring;

[0010] The rotating shaft assembly includes a vertical shaft arranged in a bearing of a top base of the power crane, a gear ring mounted on the vertical shaft, the gear ring is meshed with a gear mounted on an output shaft of a second motor, and the second motor is electrically connected to the PLC controller;

[0011] The extension arm is composed of a telescopic sleeve, the outer tube of the telescopic sleeve is provided with a traction cylinder, the piston rod of the traction cylinder is connected to the inner tube of the telescopic sleeve, and the traction cylinder is electrically connected to the PLC controller;

[0012] The power vehicle is a vehicle body driven by electricity or fuel, and both front and rear wheels at the bottom of the vehicle body are rubber tires, or the power vehicle is a vehicle body arranged in a power rail;

[0013] ——The pile grinding head is also provided with a spray head connected to a water pipe, and the spray head is arranged at the bottom of the pile grinding disc or the bearing seat.

[0014] The utility model provides a novel pile grinding machine, compared with the prior art, with the following advantages: an extension arm is arranged on the top of the power crane of the pile grinding machine, a pile grinding head which can be lifted and lowered vertically is arranged at the end of the extension arm, a plurality of fins are arranged radially on the pile grinding disk of the pile grinding head, a plurality of grinding teeth are installed on the lower edge of the fins, the rotating shaft connected to the pile grinding disk is driven by the first motor to realize the rotation of the fins and the grinding teeth, and the pile head is ground, the extension arm is connected to the power crane through the rotating shaft assembly, the pile grinding disk is moved in the cement soil mixing pile area, and the pile grinding process is completed quickly; secondly, since the power crane, the first motor of the pile grinding head and the vertical telescopic mechanism are all electrically connected to the PLC controller, the pile grinding process is automatically controlled, and the problems of inconsistent pile grinding standards and material waste caused by manual operation are avoided, which further saves labor and improves production efficiency, and the pile grinding is safer and more regular, with better leveling quality, and the overall equipment has the advantages of simple and compact structure, convenient use, economy and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a new type of pile grinding machine of the utility model;

[0016] Figure 2 This is a schematic diagram of the pile head grinding structure of the device. DETAILED DESCRIPTION

[0017] The structure and working principle of the new pile grinder provided by the utility model are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0018] In the description of the present invention, unless otherwise specified, the terms "vertical", "inside / outside", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set / provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0020] like Figure 1 As shown, the novel pile grinding machine comprises a power crane 1, a spreading arm 3 connected by a rotating shaft assembly is arranged on the top of the power crane 1, a pile grinding head is arranged at one end of the spreading arm 3, a counterweight 4 or a pile grinding head is arranged at the other end thereof, the pile grinding head is connected to the spreading arm 3 through a vertical telescopic mechanism, the pile grinding head comprises a rotating shaft 62 driven by a first motor 61, a bearing seat 63 mounted on the rotating shaft 62, a pile grinding disc 64 is connected below the rotating shaft 62, a plurality of fins 65 are radially arranged on the pile grinding disc 64, a plurality of grinding teeth 66 are installed on the lower side edge of the fin 65, the power crane 1, the first motor 61 of the pile grinding head and the vertical telescopic mechanism are all electrically connected to the PLC controller 7.

[0021] Its working principle is as follows: the power crane 1 of the pile grinder is driven to reach the pile foundation area, and the pile grinding head at the end of the arm 3 is lowered to the pipe pile under the guidance of the vertical telescopic mechanism. The rotating shaft 62 of the pile grinding head is driven by the first motor 61 to rotate the pile grinding disc 64 connected to the rotating shaft 62, and its radial fins 65 and grinding teeth 66 grind the pipe pile. The arm 3 is connected to the power crane 1 through the rotating shaft assembly, and the pile grinding head is moved and ground on the pipe pile and its surroundings by swinging. The whole process is automatically adjusted by the PLC controller 7, the pile grinding is standardized, and the grinding quality is good.

[0022] The above electrical connections, including necessary power lines, communication lines, displacement / angle sensors, and control solenoid valve groups and other electrical components, are all prior art and will not be described in detail here;

[0023] The fins 65 are detachably connected to the pile grinding disc 64 vertically, for example, angle irons 81 are radially installed on the pile grinding disc 64, and the side edges of the fins 65 are connected to the vertical edges of the angle irons 81 by bolts 82. The grinding teeth 66 are made of high-strength alloy material and are distributed at intervals along the edge of the fins 65. They can be welded or fixed by setting slots.

[0024] In the structure of the new pile grinding machine,

[0025] In one embodiment, the vertical telescopic mechanism is a vertical cylinder 51 disposed on the extension arm 3. The piston rod of the vertical cylinder 51 is connected to the bearing seat 63 of the pile grinding head. The vertical cylinder 51 pulls the bearing seat 63 up and down to adjust the height of the pile grinding head so that it is aligned with the position of the cement soil mixing pile head to complete the pile grinding process. After the vertical cylinder 51 is electrically connected to the PLC controller, automatic control is achieved to avoid manual intervention.

[0026] As an equivalent replacement, the vertical telescopic mechanism can also be configured as follows: a lifting ring 52 is provided above the bearing seat 63 of the pile grinding head, a reel driven by a reduction motor is provided on the extension arm 3, a lifting rope wound on the reel is connected to the lifting ring, and the reel is driven by the reduction motor to rotate to realize the retraction and release of the lifting rope, thereby adjusting the vertical lifting of the pile grinding head;

[0027] ——Preferably, the above-mentioned rotating shaft assembly includes a vertical shaft 21 arranged in a base bearing 20 at the top of the power crane 1, a gear ring 22 mounted on the vertical shaft 21, and the gear ring 22 is meshed with a gear 24 mounted on the output shaft of the second motor 23. The vertical shaft 21 is rotated through the gear meshing transmission. The arm 3 can swing at an angle to grind the piles comprehensively, and can also rotate to switch the positions of multiple cement-soil mixing piles, thereby further improving the grinding efficiency. The second motor 23 is electrically connected to the PLC controller 7 to realize automatic regulation;

[0028] ——Furthermore, the above-mentioned extension arm 3 is composed of a telescopic sleeve, the outer tube 31 of the telescopic sleeve is provided with a traction cylinder 30, the piston rod of the traction cylinder 30 is connected to the inner tube 32 of the telescopic sleeve, and the traction cylinder 30 is electrically connected to the PLC controller 7. The extension arm 3 is controlled to be horizontally extended and retracted by the hydraulic cylinder, thereby adjusting the movement radius of the pile grinding head, which can not only perform continuous pile grinding operations on pipe piles at different positions, but also ensure the stability of the center of gravity of the power driving vehicle 1 and the safe operation of the pile grinding head;

[0029] The power trolley 1 is a vehicle body driven by electricity or fuel, and both front and rear wheels at the bottom of the vehicle body are rubber tires 11. The whole vehicle body is light in weight and flexible in steering and movement. Alternatively, the power trolley 1 is a vehicle body arranged in a power guide rail, which is convenient for automatic control by a PLC controller 7 and is particularly suitable for pile grinding operations in large areas where pipe piles are distributed in a matrix.

[0030] ——Preferably, the above-mentioned pile grinding head is also provided with a spray head 91 connected to a water pipe 92, and the spray head 91 is arranged at the bottom of the pile grinding disc bearing seat 63. During the pile grinding process, the spray head 91 performs spraying operations continuously or intermittently, and the clean water can effectively reduce dust, which has an excellent environmental protection effect.

[0031] The above-described implementation modes are only used to illustrate the technical solution of the utility model, and are not limiting conditions for the implementation of the utility model. Therefore, any other modifications or equivalent replacements of configuration dimensions and internal structures made to the technical solution of the utility model, as long as they do not depart from the spirit and scope of the technical solution of the utility model, should be included in the scope of the claims of the utility model.

Claims

1. A new type of pile grinding machine, characterized by: It includes a power crane, a spreading arm connected by a rotating shaft assembly is arranged on the top of the power crane, a pile grinding head is arranged at one end of the spreading arm, a counterweight or a pile grinding head is arranged at the other end, the pile grinding head is connected to the spreading arm through a vertical telescopic mechanism, the pile grinding head includes a rotating shaft driven by a first motor, a bearing seat mounted on the rotating shaft, a pile grinding disc is connected below the rotating shaft, a plurality of fins are radially arranged on the pile grinding disc, a plurality of grinding teeth are installed on the lower side edges of the fins, the power crane, the first motor of the pile grinding head and the vertical telescopic mechanism are all electrically connected to the PLC controller.

2. A new type of pile grinding machine according to claim 1, characterized in that: The vertical telescopic mechanism is a vertical cylinder arranged on the extension arm, and the piston rod of the vertical cylinder is connected to the bearing seat of the pile grinding head.

3. The new pile grinding machine according to claim 1 is characterized in that: A lifting ring is arranged above the bearing seat of the pile grinding head, and a reel driven by a reduction motor is arranged on the extension arm, and a lifting rope wound on the reel is connected with the lifting ring.

4. The new pile grinding machine according to claim 1 is characterized in that: The rotating shaft assembly includes a vertical shaft arranged in a base bearing at the top of the power crane, a gear ring mounted on the vertical shaft, the gear ring is meshed with a gear mounted on the output shaft of the second motor, and the second motor is electrically connected to the PLC controller.

5. The novel pile grinding machine according to claim 1 is characterized in that: The extension arm is composed of a telescopic sleeve, the outer tube of the telescopic sleeve is provided with a traction cylinder, the piston rod of the traction cylinder is connected to the inner tube of the telescopic sleeve, and the traction cylinder is electrically connected to the PLC controller.

6. The novel pile grinding machine according to claim 1 is characterized by: The power vehicle is a vehicle body driven by electricity or fuel, and both front and rear wheels at the bottom of the vehicle body are rubber tires, or the power vehicle is a vehicle body arranged in a power guide rail.

7. The novel pile grinding machine according to claim 1 is characterized by: The pile grinding head is also provided with a spray head connected to a water pipe, and the spray head is arranged at the bottom of the pile grinding disc or the bearing seat.

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