CN217059441U

CN217059441U - Concrete sampling device

Info

Publication number: CN217059441U
Application number: CN202220589084.7U
Authority: CN
Inventors: 许尚春; 刘正杨; 盛政敏; 李山东; 黄曙; 刘广平; 朱国旗; 陈平; 卢林; 易吉明; 戴鑫章; 孙鑫鹏; 董欢; 陈志鹏; 高宇鹏; 陈济志; 廖丽莎; 黄祖兴; 廖鹏; 廖宏
Original assignee: Hunan Hongshang Testing Technology Co ltd
Current assignee: Hunan Hongshang Testing Technology Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-07-26
Anticipated expiration: 2032-03-17

Abstract

The utility model provides a concrete sampling device, which comprises a bracket, a driving motor and a drill bit, wherein the drill bit comprises a drill cylinder and a drill tooth, the drill tooth comprises a connecting part and a tooth head, the top surface of the connecting part is sunken towards the direction far away from the drill cylinder to form an annular groove body, the top end of the connecting part is separated by the groove body to form a first clamping part and a second clamping part which are oppositely spaced, the bottom of the drill cylinder is inserted into the groove body, two sides of the bottom of the drill cylinder are respectively abutted against the first clamping part and the second clamping part, the drill cylinder and the drill tooth are fastened by a bolt, the first clamping part is provided with a first mounting hole in a penetrating way along the radial direction, the second clamping part is provided with a second mounting hole in a penetrating way along the radial direction, the bottom of the drill cylinder is provided with a third mounting hole in a penetrating way along the radial direction, the first mounting hole, the third mounting hole and the second mounting hole are sequentially aligned and communicated to form a bolt hole, a screw rod of the bolt passes through the bolt hole and is exposed on the outer surface of the drill tooth, the nut of the bolt is screwed on the end of the screw rod. The utility model provides a concrete sampling device can avoid boring the waste of a section of thick bamboo.

Description

Concrete sampling device

[ technical field ] A method for producing a semiconductor device

The utility model relates to a building engineering detects technical field, especially relates to a concrete sampling device.

[ background of the invention ]

The concrete sampling device is used for drilling and sampling on the concrete pavement to obtain a concrete core, and then the core is sent to be detected so as to verify the relevant performance of the concrete pavement. The core structure of the concrete sampling device is a drill bit, and the drill bit is driven by a motor to rotate to cut a concrete pavement to obtain a core body.

In the related art, a drill bit of the concrete sampling device comprises a drill cylinder and drill teeth arranged at the bottom end of the drill cylinder, and the drill teeth are directly machined and molded at the bottom end of the drill cylinder, so that the drill teeth and the drill cylinder are of an integrated structure. Bore the tooth and be used for cutting the concrete, bore a section of thick bamboo and be used for accomodating the core, in the use, bore the tooth wearing and tearing extremely easily, after boring the tooth and grind the tie, its cutting ability just can descend by a wide margin, need change, owing to bore a section of thick bamboo and bore the tooth structure as an organic whole, can only change the drill bit is whole, but bores a section of thick bamboo itself and does not participate in the cutting, and its wearing and tearing are less relatively, wholly changes the drill bit, can cause the waste of boring a section of thick bamboo. Therefore, there is a need to provide a concrete sampling device to solve the above problems.

[ Utility model ] content

The utility model discloses a concrete sampling device sets up the brill section of thick bamboo of drill bit and brill tooth into the detachable mode, when the wearing and tearing of brill tooth are great, only need to change bore the tooth can, can not cause the waste of boring a section of thick bamboo.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a concrete sampling device comprises a support, a driving motor and a drill bit, wherein the driving motor is installed on the support, the drill bit is connected with the driving motor, the driving motor drives the drill bit to rotate, the drill bit comprises a drill cylinder connected with the driving motor and drill teeth fixed at one end, far away from the driving motor, of the drill cylinder, the drill teeth comprise a connecting portion and a tooth head, the top surface of the connecting portion is recessed towards the direction far away from the drill cylinder to form an annular groove body, the groove body divides the top end of the connecting portion to form a first clamping portion and a second clamping portion which are spaced relatively, the bottom of the drill cylinder is inserted into the groove body, two sides of the drill cylinder are respectively abutted against the first clamping portion and the second clamping portion, the drill cylinder and the drill teeth are fastened through bolts, the first clamping portion is provided with a first mounting hole in a penetrating manner along the radial direction, the second clamping portion is provided with a second mounting hole in a penetrating manner along the radial direction, the bottom of the drill cylinder is provided with a third mounting hole in a penetrating mode along the radial direction, the first mounting hole, the third mounting hole and the second mounting hole are sequentially aligned and communicated to form a bolt hole, a screw rod of the bolt penetrates through the bolt hole and is exposed on the outer surface of the drill tooth, and a nut of the bolt is screwed on the end portion of the screw rod.

Preferably, the number of the bolt holes is multiple, the bolt holes are distributed in an annular array along the central axis of the drill tooth, and one bolt is arranged in each bolt hole.

Preferably, the first mounting hole, the second mounting hole and the third mounting hole have the same aperture and are matched with the outer diameter of the screw of the bolt.

Preferably, a first counter bore is formed in a position, corresponding to the first mounting hole, of the inner surface of the first clamping portion in a recessed manner, and the head of the screw is completely accommodated in the first counter bore; and a second counter bore is formed in the position, corresponding to the second mounting hole, of the outer surface of the second clamping part in a recessed mode, and the nut of the bolt is completely contained in the second counter bore.

Preferably, the number of the tooth heads is multiple, and the tooth heads are distributed in an annular array along the central axis of the drill tooth.

Preferably, the thickness of the bit in the radial direction of the drill tooth is the same as the thickness of the connecting portion.

Preferably, the cross-sectional area of the tooth head is gradually reduced in a direction away from the connecting portion.

Preferably, the support includes the bottom plate, is fixed in montant on the bottom plate, install in slide on the montant and with the mount pad that the slide is fixed, the slide can be followed the montant reciprocates, driving motor is fixed in on the mount pad, driving motor's output shaft passes the mount pad with the drill bit is connected.

Compared with the prior art, the utility model provides an among the concrete sampling device, bore a section of thick bamboo and bore the tooth through bolted connection, when the degree of wear of boring the tooth is great, can only change boring the tooth, can avoid boring the waste of a section of thick bamboo.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is the utility model provides a concrete sampling device's schematic structure diagram

FIG. 2 is an exploded view of the drill bit shown in FIG. 1;

FIG. 3 is a schematic view of the structure of the drill tooth shown in FIG. 2;

FIG. 4 is a cross-sectional view of the drill bit;

FIG. 5 is an enlarged view of area A of FIG. 4;

fig. 6 is a schematic view of the enlarged view of fig. 5, in which the bolt is omitted.

[ detailed description ] A

In order to make the technical solutions in the embodiments of the present invention better understood and make the above objects, features and advantages of the present invention more obvious and understandable, the following description of the embodiments of the present invention is provided.

Referring to fig. 1-6, the present invention provides a concrete sampling device 100, which includes a frame 10, a driving motor 20 mounted on the frame 10, and a drill 30 connected to the driving motor 20.

The support 10 comprises a bottom plate 11, a vertical rod 12 fixed on the bottom plate 11, a sliding seat 13 mounted on the vertical rod 12, and a mounting seat 14 fixed with the sliding seat 13. The bottom plate 11 sets up along the horizontal direction, the montant 12 sets up along vertical direction, the slide 13 can follow montant 12 reciprocates, driving motor 20 is fixed in on the mount pad 14, driving motor 20's output shaft pass the mount pad 14 with the drill bit 30 is connected. The matching structure of the sliding seat 13 and the vertical rod 12 adopts the conventional technical means in the field, and when the sliding seat 13 moves downwards along the vertical rod 12, the mounting seat 14, the driving motor 20 and the drill bit 30 can be driven to synchronously move downwards, so that the drill bit 30 can be fed downwards; when the sliding base 13 moves upwards along the vertical rod 12, the mounting base 14, the driving motor 20 and the drill bit 30 can be driven to move upwards synchronously, so that the drill bit 30 can move backwards.

The bottom plate 11 runs through along vertical direction and is provided with through-hole 110, through-hole 110 is located under drill bit 30, during the use, will the bottom plate 11 is placed on the concrete pavement, then will slide 13 is followed montant 12 downstream makes drill bit 30 corresponds to pass through-hole 110 butt concrete pavement, driving motor 20 work drive drill bit 30 is rotatory, accomplishes the cutting.

The driving motor 20 is used for driving the drill 30 to rotate, and the type of the driving motor 20 may be a conventional type in the art, which is not limited in this embodiment.

The drill bit 30 comprises a drill barrel 31 connected with the driving motor 20 and drill teeth 32 fixed at one end of the drill barrel 31 far away from the driving motor 20, the drill teeth 32 are detachably connected with the drill barrel 31, when the wear degree of the drill teeth 32 is large, only the drill teeth 32 can be replaced, and the waste of the drill barrel 31 can be avoided.

The drill cylinder 31 and the drill teeth 32 are both hollow cylindrical structures, the drill teeth 32 are used for rotatably cutting concrete to form a core body, and the drill cylinder 31 is used for accommodating the core body.

Specifically, the drill tooth 32 includes a connecting portion 321 and a tooth head 322, and the connecting portion 321 and the tooth head 322 are integrally formed.

The top surface of the connecting part 321 is recessed towards the direction far away from the drill cylinder 31 to form an annular groove body 3210, the groove body 3210 separates the top end of the connecting part 321 to form a first clamping part 3211 and a second clamping part 3212 which are spaced relatively, wherein the first clamping part 3211 is located on the inner side of the second clamping part 3212. The central axes of the first clamping portion 3211 and the second clamping portion 3212 are coincident, that is, the cross sections of the first clamping portion 3211 and the second clamping portion 3212 are concentrically arranged.

The bottom of the drill cylinder 31 is inserted into the groove body 3210, two sides of the drill cylinder are respectively abutted to the first clamping portion 3211 and the second clamping portion 3212, and the drill cylinder 31 and the drill teeth 32 are fastened through bolts 33. It can be understood that the drill cylinder 31 abuts against the first clamping portion 3211 and the second clamping portion 3212, and after the drill cylinder 31 is fixed, there is no gap between the drill cylinder and the first clamping portion 3211 and the second clamping portion 3212, so that the occurrence of shaking can be avoided. Through bolted connection's mode, can easy to assemble and dismantle.

It can be understood that, since the drill cylinder 31 is clamped between the first clamping portion 3211 and the second clamping portion 3212, so that the outer diameter of the drill cylinder 31 is smaller than the outer diameter of the connecting portion 321, the diameter of the rotary cutting face of the drill teeth 32 is always larger than the diameter of the drill cylinder 31 during rotation, thereby avoiding the drill cylinder 31 from contacting with concrete during rotation and reducing the wear of the drill cylinder 31.

The first clamping portion 3211 is provided with a first mounting hole 3213 in a penetrating manner along a radial direction, the second clamping portion 3212 is provided with a second mounting hole 3214 in a penetrating manner along a radial direction, the bottom of the drill cylinder 31 is provided with a third mounting hole 310 in a penetrating manner along a radial direction, and the first mounting hole 3213, the third mounting hole 310 and the second mounting hole 3214 are sequentially aligned and communicated to form a bolt hole.

The number of the bolt holes is multiple, the bolt holes are distributed in an annular array along the central axis of the drill tooth 32, and each bolt hole is internally provided with one bolt, so that connection points can be uniformly distributed along the drill tooth 32, and balanced stress can be guaranteed.

The bolt 33 includes a head 331, a bolt 332, and a nut 333, the bolt 332 passes through the bolt hole and is exposed to the outer surface of the drill bit 32, and the nut 333 is screwed to the end of the bolt 332. After the nut 332 is tightened, the first clamping portion 3211 and the second clamping portion 3212 clamp the drill cylinder 31 correspondingly. The first mounting hole 3213, the second mounting hole 310 and the third mounting hole 3214 have the same diameter and are matched with the outer diameter of the screw 332, so that the drill cylinder 31, the drill bit 32 and the screw 332 are prevented from shaking up and down after connection.

Further, a first counter bore 3215 is recessed at a position of the inner surface of the first clamping portion 3211 corresponding to the first mounting hole 3213, and the head portion 331 is completely received in the first counter bore 3215, so that the head portion 331 is prevented from protruding from the inner surface of the first clamping portion 3211; a second counter bore 3216 is concavely formed on the outer surface of the second clamping portion 3212 at a position corresponding to the second mounting hole 3214, and the nut 333 is completely accommodated in the second counter bore 3216, so that the nut 333 is prevented from protruding from the outer surface of the second clamping portion 3212. Therefore, during the rotation of the drill teeth 32, the bolt 33 does not contact with concrete, and the abrasion to the bolt 33 can be avoided.

The number of the tooth heads 322 is multiple, and the tooth heads 322 are distributed in an annular array along the central axis of the drill tooth 32; the thickness of the tooth head 322 in the radial direction of the drill tooth 32 is the same as the thickness of the connecting portion 321; the cross-sectional area of the tooth head 322 is gradually reduced in a direction away from the connecting portion 321.

Claims

1. A concrete sampling device is characterized by comprising a support, a driving motor arranged on the support and a drill bit connected with the driving motor, wherein the driving motor drives the drill bit to rotate, the drill bit comprises a drill barrel connected with the driving motor and drill teeth fixed at one end, far away from the driving motor, of the drill barrel, the drill teeth comprise a connecting part and a tooth head, the top surface of the connecting part is sunken towards the direction far away from the drill barrel to form an annular groove body, the groove body divides the top end of the connecting part to form a first clamping part and a second clamping part which are relatively spaced, the bottom of the drill barrel is inserted into the groove body, two sides of the drill barrel are respectively abutted against the first clamping part and the second clamping part, the drill barrel and the drill teeth are fastened through bolts, and the first clamping part is provided with a first mounting hole in a penetrating manner along the radial direction, the second clamping portion is provided with a second mounting hole in a penetrating mode along the radial direction, the bottom of the drilling cylinder is provided with a third mounting hole in a penetrating mode along the radial direction, the first mounting hole, the third mounting hole and the second mounting hole are sequentially aligned and communicated to form a bolt hole, a screw rod of the bolt penetrates through the bolt hole and is exposed out of the outer surface of the drilling tooth, and a nut of the bolt is screwed to the end portion of the screw rod.

2. The concrete sampling device of claim 1, wherein the number of bolt holes is a plurality, the plurality of bolt holes are distributed in an annular array along the central axis of the drill tooth, and one bolt is disposed in each bolt hole.

3. The concrete sampling device of claim 1, wherein the first mounting hole, the second mounting hole and the third mounting hole have the same diameter and are matched with the outer diameter of the screw of the bolt.

4. The concrete sampling device of claim 1, wherein the inner surface of the first clamping portion is concavely formed with a first counter bore at a position corresponding to the first mounting hole, and the head of the screw is completely accommodated in the first counter bore; and a second counter bore is formed in the position, corresponding to the second mounting hole, of the outer surface of the second clamping part in a recessed mode, and the nut of the bolt is completely contained in the second counter bore.

5. The concrete sampling device of claim 1, wherein the number of the tooth heads is multiple, and the multiple tooth heads are distributed in an annular array along the central axis of the drill tooth.

6. The concrete sampling device of claim 5, wherein the thickness of the bit in a radial direction of the drill tooth is the same as the thickness of the connection portion.

7. A concrete sampling device according to claim 5 wherein the cross-sectional area of the tooth head tapers away from the connection.

8. The concrete sampling device of claim 1, wherein the support comprises a bottom plate, a vertical rod fixed on the bottom plate, a sliding seat mounted on the vertical rod, and a mounting seat fixed with the sliding seat, the sliding seat can move up and down along the vertical rod, the driving motor is fixed on the mounting seat, and an output shaft of the driving motor penetrates through the mounting seat to be connected with the drill bit.