阅读说明：本技术 一种变径钻头装置和挖坑设备 (Reducing drill bit device and pit digging equipment ) 是由 盘剑 余弦 李林穗 陈世胜 甘敏慧 于 2019-09-26 设计创作，主要内容包括：本发明公开了一种变径钻头装置,该变径钻头装置包括支架、锥形座、直线驱动元件和若干组挖坑刀具模组；所述支架包括底盖,所述锥形座底面设置在所述底盖底面上；所述直线驱动元件本体底面设置在所述底盖顶面上,所述直线驱动元件输出端运动方向为竖直方向；所述若干组挖坑刀具模组中的每一组挖坑刀具模组包括挖坑刀具、刀具架和推杆；所述推杆一端与所述刀具架内侧铰接,所述推杆另一端与所述直线驱动元件输出端铰接；所述刀具架底部与所述底盖铰接；所述挖坑刀具设置在所述刀具架外侧。该变径钻头装置具有出土率高、可变径等特点,具有良好的实用性。另外,本发明还提供了一种挖坑设备。(The invention discloses a variable-diameter drill bit device which comprises a support, a conical seat, a linear driving element and a plurality of groups of digging cutter modules, wherein the conical seat is arranged on the support; the bracket comprises a bottom cover, and the bottom surface of the conical seat is arranged on the bottom surface of the bottom cover; the bottom surface of the linear driving element body is arranged on the top surface of the bottom cover, and the motion direction of the output end of the linear driving element is vertical; each group of the plurality of groups of the digging cutter modules comprises a digging cutter, a cutter frame and a push rod; one end of the push rod is hinged with the inner side of the cutter frame, and the other end of the push rod is hinged with the output end of the linear driving element; the bottom of the tool rest is hinged with the bottom cover; the digging cutter is arranged on the outer side of the cutter frame. The variable-diameter drill bit device has the characteristics of high unearthing rate, variable diameter and the like, and has good practicability. In addition, the invention also provides a pit digging device.)

1. The variable diameter drill bit device is characterized by comprising a support, a conical seat, a linear driving element and a plurality of groups of digging cutter modules;

the bracket comprises a bottom cover, and the bottom surface of the conical seat is arranged on the bottom surface of the bottom cover;

the bottom surface of the linear driving element body is arranged on the top surface of the bottom cover, and the motion direction of the output end of the linear driving element is vertical;

each group of the plurality of groups of the digging cutter modules comprises a digging cutter, a cutter frame and a push rod;

one end of the push rod is hinged with the inner side of the tool rest, the other end of the push rod is hinged with the output end of the linear driving element, the bottom of the tool rest is hinged with the bottom cover, and the pit digging tool is arranged on the outer side of the tool rest.

2. The variable diameter drill bit assembly of claim 1, wherein the conical seat surface is provided with helical blades.

3. The variable diameter drill bit assembly of claim 1, wherein the diameter of the bottom surface of the conical seat is equal to the diameter of the bottom surface of the bottom cap.

4. The variable diameter drill bit assembly of claim 1, wherein the hinge point of the bottom of the tool holder to the bottom cover is provided on an edge of the top surface of the bottom cover.

5. The variable diameter drill bit assembly of claim 1, wherein the holder further comprises a cylinder disposed on a top surface of the bottom cap, the linear drive element being located within the cylinder;

the drum is provided with a plurality of through holes, and the arrangement positions of the through holes correspond to the arrangement positions of the cutter frame of the plurality of groups of digging cutter modules respectively.

6. A pit digging apparatus comprising the variable diameter drill bit device of any one of claims 1 to 5.

7. The apparatus of claim 6, further comprising a rotary drive;

the rotary driving device comprises a rotary fixing plate and a rotary driving element;

the rotary driving element body is arranged on the rotary fixing plate, the output end of the rotary driving element faces downwards, and the output end of the rotary driving element is connected with the support.

8. The apparatus of claim 7, further comprising a shaft;

the output end of the rotary driving device is connected with the bracket based on the shaft piece.

9. A pit apparatus as claimed in claim 7 or 8, characterized in that the pit apparatus further comprises a lifting device;

the lifting device is provided with an output end moving along the up-and-down direction, and the output end of the lifting device is connected with the rotary fixing plate.

10. The pit digging apparatus of claim 8, wherein the lifting device comprises a v-shaped fixing plate, a first lead screw, a servo motor and a slide block;

the v-21274-shaped fixing plate comprises an upper panel, a lower panel and a side panel, wherein the inner side of the side panel is provided with an up-down guide groove;

two ends of a first screw rod are rotatably arranged on an upper panel and a lower panel of the v-shaped fixing plate, one end of the rotating fixing plate is a fixing seat, the fixing seat is in transmission connection with the first screw rod, the sliding block is fixed at the tail end of the fixing seat, and the sliding block is matched on the guide groove;

the servo motor body is arranged on the upper panel of the v-shaped fixing plate, and the output end of the servo motor is connected with the speed reducer;

the output end of the speed reducer is connected with the first screw rod.

Technical Field

The invention relates to the technical field of earth boring machines, in particular to a variable-diameter drill bit device and earth boring equipment.

Background

At present, when the power supply line telegraph pole is used for erecting, construction is generally carried out manually or by matching a crane with manual work, the labor intensity is high, the pit digging cost is high, and then the problems are solved by the pit digger.

The existing earth boring machine adopts a drill bit with a fixed wire diameter, firstly drills holes through a small drill bit, and then reams the holes through a large drill bit, in actual operation, the number of drill bits required to be carried by equipment is large, and the drill bits need to be frequently replaced during operation, so that the use is inconvenient; in addition, current drill bit does not have relevant earth in the design and derives the structure, when the drill bit bored certain degree of depth, because earth is tamped by the drill bit, leads to the drilling resistance increase of drill bit, just can continue the operation after need relying on the impact force to break the earth, uses comparatively inconveniently.

Disclosure of Invention

In order to solve the problems in the background art, the invention aims to provide a variable-diameter drill bit device and pit digging equipment.

Correspondingly, the invention provides a reducing drill bit device which comprises a support, a conical seat, a linear driving element and a plurality of groups of digging cutter modules, wherein the conical seat is arranged on the support;

the bracket comprises a bottom cover, and the bottom surface of the conical seat is arranged on the bottom surface of the bottom cover;

the bottom surface of the linear driving element body is arranged on the top surface of the bottom cover, and the motion direction of the output end of the linear driving element is vertical;

each group of the plurality of groups of the digging cutter modules comprises a digging cutter, a cutter frame and a push rod;

one end of the push rod is hinged with the inner side of the cutter frame, and the other end of the push rod is hinged with the output end of the linear driving element;

the bottom of the tool rest is hinged with the bottom cover;

the digging cutter is arranged on the outer side of the cutter frame.

In an alternative embodiment, the conical seat surface is provided with helical blades.

In an optional embodiment, the line diameter of the bottom surface of the conical base is equal to that of the bottom surface of the bottom cover.

In an alternative embodiment, the hinging point of the bottom of the tool carrier to the bottom cover is provided on an edge of the top surface of the bottom cover.

In an alternative embodiment, the stand further comprises a cylinder disposed on a top surface of the bottom cap, the linear drive element being located inside the cylinder;

the drum is provided with a plurality of through holes, and the arrangement positions of the through holes correspond to the arrangement positions of the cutter frame of the plurality of groups of digging cutter modules respectively.

Correspondingly, the invention provides pit digging equipment which comprises the variable-diameter drill bit device.

In an alternative embodiment, the excavation apparatus further comprises a rotary drive;

the rotary driving device comprises a rotary fixing plate and a rotary driving element;

the rotary driving element body is arranged on the rotary fixing plate, the output end of the rotary driving element faces downwards, and the output end of the rotary driving element is connected with the support.

In an alternative embodiment, the apparatus further comprises a shaft;

the output end of the rotary driving device is connected with the bracket based on the shaft piece.

In an optional embodiment, the pit digging equipment further comprises a lifting device;

the lifting device is provided with an output end moving along the up-and-down direction, and the output end of the lifting device is connected with the rotary fixing plate.

In an optional embodiment, the lifting device comprises a v-shaped fixing plate, a first screw rod, a servo motor and a sliding block;

the v-21274-shaped fixing plate comprises an upper panel, a lower panel and a side panel, wherein the inner side of the side panel is provided with an up-down guide groove;

two ends of a first screw rod are rotatably arranged on an upper panel and a lower panel of the v-shaped fixing plate, one end of the rotating fixing plate is a fixing seat, the fixing seat is in transmission connection with the first screw rod, the sliding block is fixed at the tail end of the fixing seat, and the sliding block is matched on the guide groove;

the servo motor body is arranged on the upper panel of the v-shaped fixing plate, and the output end of the servo motor is connected with the speed reducer;

the output end of the speed reducer is connected with the first screw rod.

The invention provides a variable-diameter drill bit device and pit digging equipment, wherein a conical seat of the variable-diameter drill bit device is provided with a helical blade, soil is led out of the ground through the matching of the helical blade, a bottom cover and a pit digging cutter, and the variable-diameter drill bit device has the characteristics of high soil discharging efficiency, high soil discharging rate and the like; the hole digging cutter at the waist realizes reducing based on a mechanism of the hole digging cutter module, can solve the problems that the hole digging machine for digging holes on the tower pole of the power grid can not reduce the diameter and drills with different diameters are required to be arranged in different hole diameters, has wide application occasions and has good practicability; the pit digging equipment using the variable-diameter drill bit device has the characteristics of wide application range, simple structure, strong practicability and the like, and can be widely popularized and used.

Drawings

FIG. 1 is a schematic structural diagram of a pit digging apparatus according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the embodiment of the present invention at A in FIG. 1;

FIG. 3 is a schematic structural diagram of a variable diameter mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic diameter-varying diagram of a diameter-varying mechanism according to an embodiment of the present invention;

fig. 5 is a schematic view of a diameter changing principle of the diameter changing mechanism according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The variable-diameter drill bit device provided by the embodiment of the invention is arranged on the pit digging equipment, and the variable-diameter drill bit device is explained first and then the pit digging equipment is explained.