CN220036584U

CN220036584U - Rock reamer

Info

Publication number: CN220036584U
Application number: CN202320383012.1U
Authority: CN
Inventors: 陈凤钢; 戴斌安; 倪万兵
Original assignee: Jiangsu Gudeng Heavy Machinery Technology Co ltd
Current assignee: Jiangsu Gudeng Heavy Machinery Technology Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-11-17
Anticipated expiration: 2033-03-03

Abstract

The utility model discloses a rock reamer, which relates to the technical field of non-excavation drilling machine equipment and comprises the following components: a mandrel; the support ring is fixedly sleeved on the outer side of the mandrel, is hollow and cylindrical, and has an inner diameter larger than the outer diameter of the mandrel; the fixed plate is fixedly sleeved on the outer side of the supporting ring; the roller cone is fixedly arranged on one side of the fixed plate; wherein, the side of backup ring wears to be equipped with the through-hole, and the through-hole is located the same side of fixed plate with the cone. According to the utility model, the through holes for the rock scraps to pass through are formed on the supporting ring, so that rock scraps mud and the like cut by the roller cone can be discharged to the rear end of the reamer, thereby improving the subsequent cutting conditions of the roller cone, avoiding the rock scraps and the like from wearing the clamp of the drilling tool, and further prolonging the service life of the drilling tool.

Description

Rock reamer

Technical Field

The utility model relates to the technical field of non-excavation drilling machine equipment, in particular to a rock reamer.

Background

Trenchless technology refers to a technology and method for detecting, repairing, and paving various underground utility facilities without excavating the earth's surface. It is also becoming increasingly common to use trenchless technology for pipe laying construction in rock formations, with rock reamers being an essential construction tool.

The existing rock reamer is poor in deslagging performance, rock scraps are easy to block to form siltation, abrasion of a drilling tool is increased, the service life of the drilling tool is further influenced, and reaming efficiency is further influenced.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a rock reamer.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

a rock reamer comprising:

a mandrel;

the support ring is fixedly sleeved on the outer side of the mandrel, is hollow and cylindrical, and has an inner diameter larger than the outer diameter of the mandrel;

the fixed plate is fixedly sleeved on the outer side of the supporting ring; the method comprises the steps of,

the roller is fixedly arranged on one side of the fixed plate;

wherein, the side of backup ring wears to be equipped with the through-hole, and the through-hole is located the same side of fixed plate with the cone.

As a preferred version of the rock reamer of the utility model, wherein: the through holes are formed in a plurality of mode and are distributed around the circumference of the supporting ring.

As a preferred version of the rock reamer of the utility model, wherein: a plurality of support rib plates are fixedly arranged between the support ring and the mandrel, one end of each support rib plate is fixedly arranged on the inner side wall of the support ring, and the other end of each support rib plate is fixedly arranged on the outer side wall of the mandrel.

As a preferred version of the rock reamer of the utility model, wherein: the two ends of the supporting rib plate extend out of the supporting ring, the two ends of the supporting rib plate are inclined planes, and the distance between one end of the inclined planes, which is far away from the supporting ring, and the mandrel is smaller than the distance between one end of the inclined planes, which is close to the supporting ring, and the mandrel.

As a preferred version of the rock reamer of the utility model, wherein: the inside of the mandrel is provided with a cooling liquid flow channel extending along the axial direction of the mandrel, one end of the mandrel is provided with an opening communicated with the cooling liquid flow channel, the other end of the mandrel is closed, the inside of the mandrel is also provided with a connecting hole, one end of the connecting hole is communicated with the cooling liquid flow channel, and the other end of the connecting hole extends to the outer side of the mandrel;

the outer side of the supporting ring is fixedly sleeved with a cover plate, the cover plate and the roller are positioned on the same side of the fixed plate, and a containing cavity is formed between the cover plate and the fixed plate as well as between the cover plate and the supporting ring;

a connecting pipeline is arranged in the support rib plate, one end of the connecting pipeline is communicated with the connecting hole, and the other end of the connecting pipeline is communicated with the accommodating cavity;

a cooling liquid nozzle is arranged in the roller cone and is communicated with the accommodating cavity.

As a preferred version of the rock reamer of the utility model, wherein: the outer side of the supporting ring is fixedly provided with a plurality of guide plates, the guide plates are positioned on one side of the roller cone far away from the fixed plate, and the guide plates are uniformly distributed around the circumference of the supporting ring;

one end of each guide plate far away from the fixed plate is set to be an inclined surface, and the distance between one end of the inclined surface far away from the fixed plate and the mandrel is smaller than the distance between one end of the inclined surface close to the fixed plate and the mandrel.

As a preferred version of the rock reamer of the utility model, wherein: and a connecting rib plate is fixedly arranged between two adjacent guide plates.

As a preferred version of the rock reamer of the utility model, wherein: the cone is provided with a plurality of, and the circumference of a plurality of cone bearing circle evenly lays.

As a preferred version of the rock reamer of the utility model, wherein: a plurality of reinforcing rib plates are fixedly arranged between one side of the fixed plate, which is far away from the roller cone, and the supporting ring.

The beneficial effects of the utility model are as follows:

(1) According to the utility model, the through hole for the rock debris to pass through is formed on the supporting ring, so that rock debris slurry and the like cut by the roller cone can be discharged to the rear end of the reamer through the through hole, thereby improving the subsequent cutting condition of the roller cone, avoiding abrasion of the drilling tool caused by the rock debris and the like, and further prolonging the service life of the drilling tool.

(2) According to the utility model, the cooling liquid flow channel is formed in the mandrel, the accommodating cavity communicated with the cooling liquid flow channel is formed between the cover plate and the fixed plate, and meanwhile, the cooling liquid nozzles communicated with the accommodating cavity are formed in each roller cone, so that cooling liquid can enter the accommodating cavity after entering the cooling liquid flow channel and then be sprayed out by the cooling liquid nozzles, thereby cooling rocks and roller cones and flushing out rock fragments cut from the rocks.

(3) According to the utility model, both ends of the supporting rib plate extend out of the supporting ring and are inclined, so that the supporting rib plate has the functions of connection and stability, and meanwhile, the guiding parts can be formed on the left side and the right side of the supporting ring, thereby being convenient for reaming operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a rock reamer provided by the present utility model;

FIG. 2 is a schematic view of a rock reamer according to the present utility model from another perspective;

FIG. 3 is a cross-sectional view of a rock reamer provided by the present utility model;

wherein: 1. a mandrel; 2. a support rib plate; 3. a guide plate; 4. a roller cone; 5. a cover plate; 6. a cooling liquid flow passage; 7. a fixing plate; 8. a connecting pipeline; 9. a support ring; 10. reinforcing rib plates; 11. a through hole; 12. a connection hole; 13. a receiving chamber; 14. and connecting the rib plates.

Description of the embodiments

In order that the utility model may be more readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

Fig. 1 is a schematic view of a rock reamer according to an embodiment of the present utility model, which includes a mandrel 1, a bearing ring 9, a retainer plate 7, and a cone 4. The cuttings cut by the cone 4 may be discharged to the rear end of the reamer through the cavity inside the backup ring 9, thereby improving the cutting conditions of the cone 4.

Specifically, a coolant flow passage 6 is provided in the mandrel 1, and the coolant flow passage 6 extends in the axial direction of the mandrel 1. An opening communicated with the cooling liquid flow channel 6 is formed in one end of the mandrel 1, and the other end of the mandrel 1 can be closed. The coolant can enter the coolant flow passage 6 through an opening at the end of the mandrel 1 and flow along the coolant flow passage 6.

The supporting ring 9 is fixedly sleeved on the outer side of the mandrel 1. Referring to fig. 1, the support ring 9 has a hollow cylindrical shape with an inner diameter larger than the outer diameter of the mandrel 1. A plurality of support rib plates 2 are fixedly arranged between the support ring 9 and the mandrel 1, one ends of the support rib plates 2 are fixedly welded on the inner side of the support ring 9, and the other ends of the support rib plates are fixedly welded on the outer side of the mandrel 1. The plurality of support rib plates 2 are uniformly distributed around the circumference of the mandrel 1. The supporting ring 9 is fixedly sleeved on the outer side of the mandrel 1 through the supporting rib plates 2. When the supporting ring 9 is sleeved outside the mandrel 1, the axis of the supporting ring 9 coincides with the axis of the mandrel 1.

Preferably, both ends of the supporting rib plate 2 extend out of the supporting ring 9, and both ends of the supporting rib plate 2 are inclined planes. Referring to fig. 1, the distance between the end far away from the supporting ring 9 and the mandrel 1 in the inclined plane is smaller than the distance between the end close to the supporting ring 9 and the mandrel 1, so that guiding parts can be formed on the left side and the right side of the supporting ring 9, and reaming operation is facilitated.

The fixing plate 7 is fixedly installed at the outer side of the supporting ring 9. The fixing plate 7 is approximately circular and coaxially sleeved outside the supporting ring 9, and the plane of the fixing plate 7 is perpendicular to the axis of the mandrel 1. A plurality of reinforcing ribs 10 are fixedly arranged on the left side of the fixed plate 7, the cross section of the reinforcing ribs 10 is approximately in a right triangle shape, and the side surfaces of the two right-angle sides of the reinforcing ribs are respectively welded with the outer sides of the fixed plate 7 and the supporting ring 9. The reinforcing rib 10 can improve the mounting stability between the fixing plate 7 and the support ring 9.

Preferably, the reinforcing ribs 10 are uniformly distributed around the circumference of the support ring 9.

The cover plate 5 is also in a circular ring shape, coaxially sleeved outside the supporting ring 9 and positioned on the right side of the fixed plate 7. The left end face of the cover plate 5 is recessed rightward to form a groove. When the cover plate 5 is fixedly mounted on the outer side of the supporting ring 9, the cover plate 5 is abutted with the fixing plate 7, so that a containing cavity 13 for containing cooling liquid is formed between the cover plate 5 and the fixing plate 7 and the supporting ring 9. Meanwhile, referring to fig. 3, a connection hole 12 is opened in the inside of the mandrel 1, one end of the connection hole 12 communicates with the coolant flow passage 6, and the other end extends to the outside of the mandrel 1. A connecting pipeline 8 is arranged in the support rib plate 2, one end of the connecting pipeline 8 is communicated with the connecting hole 12, and the other end is communicated with the accommodating cavity 13. In addition, cooling fluid nozzles are provided in each cone 4, which are in communication with the receiving chamber 13.

During reaming operation, cooling liquid can enter the cooling liquid flow channel 6 through the opening at the end part of the mandrel 1 and flow along the cooling liquid flow channel 6, then enter the accommodating cavity 13 through the connecting hole 12 and the connecting pipeline 8, and then are sprayed out by the cooling liquid nozzle to cool the rock and the roller cone 4, and meanwhile, rock scraps cut from the rock are flushed out, so that subsequent cutting and reaming operation is facilitated.

Referring to fig. 2, a plurality of through holes 11 are perforated in the bearing ring 9, and these through holes 11 are located on the right side of the fixed plate 7, i.e., on the same side of the fixed plate 7 as the cone 4. The cuttings and mud from the cutting of the cone 4 may move along the outer sidewall of the bearing ring 9 to the through hole 11 and pass through the through hole 11 into the cavity inside the bearing ring 9 and then to the rear end of the reamer, thereby improving the subsequent cutting conditions of the cone 4.

Preferably, a plurality of through holes 11 are arranged around the circumference of the support ring 9. Therefore, rock fragments at different positions on the side surface of the supporting ring 9 can enter the cavity on the inner side of the supporting ring 9 through the adjacent through holes 11, and the discharge effect of the rock fragments is ensured.

In addition, a plurality of guide plates 3 are fixedly arranged on the outer side of the supporting ring 9, and the guide plates 3 are positioned on the side of the roller cone 4 away from the fixed plate 7. These guide plates 3 are uniformly distributed around the circumference of the support ring 9. Wherein, the one end that every deflector 3 kept away from fixed plate 7 all sets up to the inclined plane, and the interval between fixed plate 7 one end and dabber 1 is kept away from to this inclined plane is less than the interval between fixed plate 7 one end and dabber 1 is close to the inclined plane. Thus, a guide part similar to a truncated cone can be formed at the right end of the outer side of the supporting ring 9, so that the reaming operation is convenient.

Preferably, a connecting rib plate 14 is fixedly welded between two adjacent guide plates 3. The connecting rib plates 14 can improve the overall stability of the guide plate 3.

Therefore, according to the technical scheme, through holes 11 for the rock fragments to pass through are formed in the supporting ring 9, rock fragment slurry and the like cut by the cone 4 can be discharged to the rear end of the reamer, so that the subsequent cutting conditions of the cone 4 are improved, the abrasion of a drilling tool caused by the rock fragments and the like is avoided, and the service life of the drilling tool is prolonged.

In addition to the above embodiments, the present utility model may have other embodiments; all technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the utility model.

Claims

1. A rock reamer, characterized by: comprising the following steps:

a mandrel (1);

the support ring (9) is fixedly sleeved on the outer side of the mandrel (1), and the support ring (9) is hollow and cylindrical and has an inner diameter larger than the outer diameter of the mandrel (1);

the fixing plate (7) is fixedly sleeved on the outer side of the supporting ring (9); the method comprises the steps of,

the roller cone (4) is fixedly arranged on one side of the fixed plate (7);

the side face of the supporting ring (9) is provided with a through hole (11) in a penetrating mode, and the through hole (11) and the roller cone (4) are located on the same side of the fixing plate (7).

2. The rock reamer of claim 1, wherein: the through holes (11) are formed in a plurality, and the through holes (11) are distributed around the circumference of the supporting ring (9).

3. The rock reamer of claim 1, wherein: a plurality of support rib plates (2) are fixedly arranged between the support ring (9) and the mandrel (1), one end of each support rib plate (2) is fixedly arranged on the inner side wall of the support ring (9), and the other end of each support rib plate (2) is fixedly arranged on the outer side wall of the mandrel (1).

4. A rock reamer according to claim 3, wherein: the two ends of the supporting rib plate (2) extend out of the supporting ring (9), the two ends of the supporting rib plate (2) are inclined planes, and the distance between one end of the inclined planes away from the supporting ring (9) and the mandrel (1) is smaller than the distance between one end of the inclined planes close to the supporting ring (9) and the mandrel (1).

5. The rock reamer of claim 4, wherein: the cooling liquid flow channel (6) extending along the axis direction of the cooling liquid flow channel is formed in the mandrel (1), an opening communicated with the cooling liquid flow channel (6) is formed in one end of the mandrel (1), a connecting hole (12) is formed in the mandrel (1), one end of the connecting hole (12) is communicated with the cooling liquid flow channel (6), and the other end of the connecting hole (12) extends to the outer side of the mandrel (1);

a cover plate (5) is fixedly sleeved on the outer side of the supporting ring (9), the cover plate (5) and the roller cone (4) are positioned on the same side of the fixed plate (7), and a containing cavity (13) is formed between the cover plate (5) and the fixed plate (7) and between the cover plate and the supporting ring (9);

a connecting pipeline (8) is arranged in the support rib plate (2), one end of the connecting pipeline (8) is communicated with the connecting hole (12), and the other end of the connecting pipeline (8) is communicated with the accommodating cavity (13);

a cooling liquid nozzle is arranged in the roller cone (4), and the cooling liquid nozzle is communicated with the accommodating cavity (13).

6. The rock reamer of claim 1, wherein: a plurality of guide plates (3) are fixedly arranged on the outer side of the supporting ring (9), the guide plates (3) are positioned on one side, far away from the fixed plate (7), of the roller cone (4), and the guide plates (3) are uniformly distributed around the circumference of the supporting ring (9);

every deflector (3) keep away from the one end of fixed plate (7) all sets up to the inclined plane, just the inclined plane is kept away from fixed plate (7) one end with the interval between dabber (1) is less than the inclined plane is close to fixed plate (7) one end with the interval between dabber (1).

7. The rock reamer of claim 6, wherein: a connecting rib plate (14) is fixedly arranged between two adjacent guide plates (3).

8. The rock reamer of claim 1, wherein: the cone (4) is provided with a plurality of cones, and the circumferences of the supporting rings (9) of the cone (4) are uniformly distributed.

9. The rock reamer of claim 1, wherein: a plurality of reinforcing rib plates (10) are fixedly arranged between one side, far away from the roller cone (4), of the fixing plate (7) and the supporting ring (9).