CN213980664U

CN213980664U - Bucket tooth structure of rotary pile digging machine

Info

Publication number: CN213980664U
Application number: CN202023086243.1U
Authority: CN
Inventors: 赵志强; 赵富豪; 赵景乐; 郭欣; 陈诗军
Original assignee: Guangdong Guangqiang Foundation Engineering Co ltd
Current assignee: Guangdong Guangqiang Foundation Engineering Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-17
Anticipated expiration: 2030-12-17

Abstract

The application relates to a bucket tooth structure of a rotary pile drilling machine, which comprises a drill bit bottom cover, wherein the drill bit bottom cover is provided with a plurality of sliding grooves, a plurality of drill teeth are installed in the sliding grooves in a sliding mode, one ends, close to the drill bit bottom cover, of the drill teeth are provided with fixing blocks, and limiting grooves for the fixing blocks to slide are formed in two opposite sides, located in the length direction of the sliding grooves, of the drill bit bottom cover; the drill bit bottom cover is provided with a limiting assembly used for enabling the fixing block to be stable at the relative position in the sliding groove. This application has the effect that bores the tooth and can change alone.

Description

Bucket tooth structure of rotary pile digging machine

Technical Field

The application relates to the field of rotary excavating pile machines, in particular to a bucket tooth structure of a rotary excavating pile machine.

Background

At present, with the need of urban development, a large number of high-rise and super high-rise buildings are newly built, a deep foundation pit needs to be excavated in a planned building site, the side wall of the foundation pit is effectively supported, the foundation pit support generally adopts a bored pile method, and a circle of support piles are formed around the foundation pit; in the process of constructing the cast-in-situ bored pile for foundation pit support, a rotary excavating pile machine is often used for drilling.

The existing rotary pile drilling machine is provided with a drill rod on a body, the rotary pile drilling machine body is connected with a power head in a sliding mode, the drill rod is connected to the power head in an inserting mode, the bottom of the drill rod is provided with a drill bit, main working components of the rotary pile drilling machine are the drill bit, the drill bit comprises a drill bit body and a drill bit bottom cover, drilling teeth are integrally formed below the drill bit bottom cover, the drill bit enters a drill hole, the power head drives the drill rod to rotate, therefore, the drill bit bottom cover enables soil to be screwed into the drill bit body, after the drill bit body is filled with the drill bit body, the drill bit is lifted to the ground through the drill bit, an operator opens the drill bit bottom cover, and the soil in the drill bit body is discharged.

In view of the above-mentioned related technologies, the inventor believes that the drill bit is easy to rub the drill teeth when the drill bit rotates to meet a rock stratum, and the temperature is sharply increased, so that the drill teeth are rapidly worn; the drill teeth and the drill bit bottom cover are designed into a whole, so that the cost for replacing the drill teeth is too high.

SUMMERY OF THE UTILITY MODEL

In order to reach the effect that the brill tooth can be changed alone, this application provides a dig bucket tooth structure of stake machine soon.

The application provides a pair of dig bucket tooth structure of stake machine soon adopts following technical scheme:

a bucket tooth structure of a rotary pile drilling machine comprises a drill bit bottom cover, wherein the drill bit bottom cover is provided with a plurality of sliding grooves, a plurality of drill teeth are installed in the sliding grooves in a sliding mode, one ends, close to the drill bit bottom cover, of the drill teeth are provided with fixing blocks, and limiting grooves for the fixing blocks to slide are formed in the two opposite sides, located in the length direction of the sliding grooves, of the drill bit bottom cover; the drill bit bottom cover is provided with a limiting assembly used for enabling the fixing block to be stable at the relative position in the sliding groove.

Through adopting above-mentioned technical scheme, when needs are dismantled the brill tooth, loosen the constraint to the fixed block through spacing subassembly earlier, then slide the brill tooth again, slide the fixed block from the groove that slides to can accomplish and carry out solitary dismantlement to the brill tooth, and then the convenience is to the maintenance of boring the tooth, improves the practicality.

Preferably, the drill bit bottom is located the length direction interval in the groove that slides and is equipped with the joint groove that supplies the fixed block card to go into, spacing subassembly includes: the butt joint plate is slidably mounted in the sliding groove, and two opposite ends of the butt joint plate extend to the groove openings of two adjacent clamping grooves; the fixing bolt is simultaneously installed on the abutting plate and the drill bit bottom cover in a threaded mode.

By adopting the technical scheme, when the drill teeth are installed, the fixing block is clamped into the sliding groove and slides, and when the drill teeth slide to the position corresponding to the clamping groove, the drill teeth are pressed to clamp the fixing block into the clamping groove; after the fixed blocks of all the drill teeth are clamped into the clamping grooves, clamping the abutting plates into the positions, between two adjacent drill teeth, of the sliding grooves, enabling the two opposite ends of each abutting plate to be located at the notches of the two adjacent clamping grooves respectively, and finally installing the abutting plates at the bottom positions of the sliding grooves through the fixing bolts; the installation is simple and convenient and the structure is stable.

Preferably, the thickness of the fixed block is equal to the depth of the clamping groove, and the abutting plate abuts against the fixed block.

Through adopting above-mentioned technical scheme to reduce and bore the tooth and appear the fixed block and remove in the joint inslot after the installation, improve the installation stability of boring the tooth.

Preferably, the outer ring of the fixed block is square.

Through adopting above-mentioned technical scheme to reduce to appear taking place to rotate after the fixed block card is gone into the joint inslot, make when boring the tooth and when boring the foundation ditch, improve the intensity of boring the tooth.

Preferably, one side of the fixed block, which is close to the drill tooth, is provided with an insertion block, one end of the drill tooth, which is close to the fixed block, is provided with an insertion groove, the insertion block is installed in the insertion groove in an insertion manner, and the fixed block is provided with a locking piece for limiting the insertion block in the insertion groove.

Through adopting above-mentioned technical scheme, with the grafting piece insert the inserting groove back, rethread locking piece with the grafting piece locking in the inserting groove to reached and installed the dismantlement formula of boring tooth and fixed block, improved the practicality, can change the dismantlement of boring the tooth alone, reduce cost.

Preferably, the locking piece comprises a limiting bolt, and the limiting bolt is simultaneously in threaded connection with the fixing block and the drill teeth.

Through adopting above-mentioned technical scheme, connect brill tooth and fixed block through spacing bolt, not only reached and connected the dismantlement formula of boring the tooth, can make moreover to bore the tooth and install the stability at the fixed block.

Preferably, the insertion block is in a circular truncated cone shape.

By adopting the technical scheme, the plug-in block can be inserted into the plug-in groove smoothly.

Preferably, the drill teeth are arranged at equal intervals along the length direction of the sliding groove.

Through adopting above-mentioned technical scheme, thereby make the in-process of boring the foundation ditch more stable through boring the equidistant setting of tooth.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the drill tooth needs to be disassembled, the constraint on the fixed block is loosened through the limiting assembly, then the drill tooth is slid, and the fixed block is slid away from the sliding groove, so that the drill tooth can be disassembled independently, the maintenance of the drill tooth is facilitated, and the practicability is improved;

2. when the drill teeth are installed, the fixing block is clamped into the sliding groove and slides, and when the drill teeth slide to the position corresponding to the clamping groove, the drill teeth are pressed, and the fixing block is clamped into the clamping groove; after the fixed blocks of all the drill teeth are clamped into the clamping grooves, clamping the abutting plates into the positions, between two adjacent drill teeth, of the sliding grooves, enabling the two opposite ends of each abutting plate to be located at the notches of the two adjacent clamping grooves respectively, and finally installing the abutting plates at the bottom positions of the sliding grooves through the fixing bolts; the installation is simple and convenient and the structure is stable;

3. after the inserting block is inserted into the inserting groove, the inserting block is locked in the inserting groove through the locking piece, so that the detachable installation of the drilling teeth and the fixing block is achieved, the practicability is improved, the drilling teeth can be detached and replaced independently, and the cost is reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of a drill bottom cover of the present invention.

Fig. 3 is a partially enlarged view of a in fig. 2.

Fig. 4 is a structural sectional view of the drill teeth of the present invention mounted on the bottom cover of the drill bit.

Description of reference numerals: 1. a bit body; 2. a drill bit bottom cover; 21. an arc edge part; 22. a straight edge portion; 23. a sliding groove; 24. a limiting groove; 25. a clamping groove; 3. drilling teeth; 31. inserting grooves; 4. a fixed block; 41. an insertion block; 42. a limit bolt; 43. a position avoiding groove; 5. a butt joint plate; 6. and (5) fixing the bolt.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a bucket tooth structure of a rotary excavating pile machine. Referring to fig. 1, the tooth structure includes a bit body 1 and a bit bottom cover 2, the bit bottom cover 2 is hinged to an end of the bit body 1, and the bit bottom cover 2 includes an arc portion 21 and a straight portion 22.

Referring to fig. 2 and 3, the arc-shaped portion 21 has sliding grooves 23 extending along the straight edges of the arc-shaped edge and the straight edge 22, the sliding grooves 23 located on the arc-shaped portion 21 are parallel to the edges of the arc-shaped portion, the sliding grooves 23 located on the straight edge 22 are parallel to the edges of the straight edge 22, two opposite ends of the sliding grooves 23 located on the arc-shaped portion 21 are communicated with the outside of the arc-shaped portion 21, and the sliding grooves 23 located on the straight edge 22 are communicated with one end of the sliding grooves 23 located on the arc-shaped portion 21; the two opposite sides of the drill bit bottom cover 2, which are positioned in the sliding groove 23, are provided with limiting grooves 24, the limiting grooves 24 are arranged at the groove bottom position close to the sliding groove 23, and the limiting grooves 24 extend towards the length direction of the sliding groove 23; the bottom of the drill bit bottom cover 2 located in the sliding groove 23 is provided with a plurality of clamping grooves 25, and the clamping grooves 25 are arranged at equal intervals along the length direction of the sliding groove 23.

Referring to fig. 3 and 4, a plurality of drill teeth 3 are mounted in each sliding groove 23, the drill teeth 3 are in a circular truncated cone shape, a fixed block 4 is mounted on one side of each drill tooth 3 with the largest cross-sectional area, the outer ring of the fixed block 4 is square, an insertion block 41 is fixedly mounted in the middle of one side of the fixed block 4 close to the drill teeth 3, the insertion block 41 is in a circular truncated cone shape, one end of the insertion block 41 with the largest cross-sectional area is connected with the fixed block 4, an insertion groove 31 is formed in the middle of one end of each drill tooth 3 close to the fixed block 4, and the insertion block 41 is mounted in the insertion groove 31 in an insertion manner; the fixed block 4 is provided with a limit bolt 42, and the limit bolt 42 sequentially penetrates through the fixed block 4 and the insertion block 41 from one side of the fixed block 4 far away from the drill tooth 3 towards the direction of the drill tooth 3 and is installed on the drill tooth 3 through threads, so that the detachable connection of the drill tooth 3 and the fixed block 4 can be completed.

The middle position of one side of the fixing block 4 far away from the drill teeth 3 is provided with a spacing groove 43, and the head of the limiting bolt 42 is installed in the spacing groove 43 in a clamping mode, so that the head of the limiting bolt 42 is flush with one side of the fixing block 4 far away from the drill teeth 3.

The width of the fixed block 4 is larger than the width of the sliding groove 23 and smaller than the distance between the limiting grooves 24 positioned at two opposite sides of the same sliding groove 23, so that the fixed block 4 can slide in the sliding groove 23 and can slide in the limiting grooves 24; the size of fixed block 4 is unanimous with the size of joint groove 25, and the thickness of fixed block 4 is unanimous with the degree of depth in joint groove 25 to slide to when corresponding with the position in joint groove 25 in sliding groove 23 when fixed block 4, can be with in the joint groove 25 of fixed block 4 card income.

Limiting assemblies are arranged at the positions, located at two adjacent clamping grooves 25, in the sliding grooves 23 and comprise abutting plates 5 and fixing bolts 6, the width of each abutting plate 5 is smaller than that of the corresponding sliding groove 23, and therefore the abutting plates 5 can be clamped into the sliding grooves 23 from the notches of the sliding grooves 23; the opposite ends of the abutting plate 5 abut against one side, far away from the clamping groove 25, of the two adjacent fixing blocks 4 respectively, and the fixing bolt 6 penetrates through the middle position of the abutting plate 5 and is installed at the bottom position, located in the sliding groove 23, of the drill bit bottom cover 2 in a threaded mode, so that the fixing blocks 4 can be limited in the clamping groove 25.

The implementation principle of the bucket tooth structure of the rotary excavating pile machine in the embodiment of the application is as follows: when needs are dismantled to boring tooth 3, earlier through unscrewing fixing bolt 6, then take off butt joint board 5 from sliding groove 23, then the pulling bores tooth 3, makes fixed block 4 pull out joint groove 25, again with the tip roll-off of fixed plate from sliding groove 23 to can accomplish and carry out solitary dismantlement to boring tooth 3, and then the convenient maintenance to boring tooth 3.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The bucket tooth structure of the rotary pile digging machine comprises a drill bit bottom cover (2), and is characterized in that the drill bit bottom cover (2) is provided with a plurality of sliding grooves (23), a plurality of drill teeth (3) are installed in the sliding grooves (23) in a sliding mode, one ends, close to the drill bit bottom cover (2), of the drill teeth (3) are provided with fixing blocks (4), and limiting grooves (24) for the fixing blocks (4) to slide are formed in two opposite sides, located in the length direction of the sliding grooves (23), of the drill bit bottom cover (2); the drill bit bottom cover (2) is provided with a limiting component used for enabling the fixing block (4) to be stable at the relative position in the sliding groove (23).

2. The bucket tooth structure of a stake machine soon of claim 1, characterized in that, the length direction interval that drill bit bottom cap (2) is located sliding groove (23) is equipped with joint groove (25) that supply fixed block (4) to go into, spacing subassembly includes: the butt joint plate (5) is slidably mounted in the sliding groove (23), and two opposite ends of the butt joint plate (5) extend to the notches of two adjacent clamping grooves (25); and the fixing bolt (6) is simultaneously installed on the abutting plate (5) and the drill bit bottom cover (2) in a threaded manner.

3. The bucket tooth structure of the rotary pile digging machine according to claim 2, characterized in that the thickness of the fixing block (4) is equal to the depth of the clamping groove (25), and the abutting plate (5) abuts against the fixing block (4).

4. The bucket tooth structure of the rotary pile digging machine according to claim 3 is characterized in that the outer ring of the fixing block (4) is square.

5. The bucket tooth structure of the rotary pile digging machine according to claim 1, characterized in that one side of the fixing block (4) close to the drilling tooth (3) is provided with an insertion block (41), one end of the drilling tooth (3) close to the fixing block (4) is provided with an insertion groove (31), the insertion block (41) is installed in the insertion groove (31) in an insertion manner, and the fixing block (4) is provided with a locking piece for limiting the insertion block (41) in the insertion groove (31).

6. The bucket tooth structure of the rotary pile digging machine according to claim 5, characterized in that the locking piece comprises a limiting bolt (42), and the limiting bolt (42) is simultaneously in threaded connection with the fixing block (4) and the drilling tooth (3).

7. The bucket tooth structure of the rotary pile digging machine according to claim 6, characterized in that the inserting block (41) is in a circular truncated cone shape.

8. The bucket tooth structure of the rotary pile digging machine according to claim 1, characterized in that the drilling teeth (3) are arranged at equal intervals along the length direction of the sliding groove (23).