CN209099969U - A kind of artificial push pipe Counterboring apparatus - Google Patents

Abstract

The utility model relates to a kind of artificial push pipe Counterboring apparatus, belong to artificial jacking construction equipment technology field.It is by counter-bore head, transfer gear and preforming pipe are constituted, the rear end of counter-bore head is connected with preforming pipe by transfer gear, the Counterboring apparatus structure is simple, practicability is good, the rotation of counter-bore head is driven in the course of work by drilling rod, can pipe hole to small diameter carry out diameter expansion, pipe hole after the completion of expansion carries out extrusion forming by preforming pipe, to facilitate heading into for later period culvert pipe, pass through the transfer gear being arranged between counter-bore head and preforming pipe, it can prevent preforming pipe from rotating, to reduce the torque load of drilling rod, to reduce construction cost, especially suitable for municipal water supply pipeline engineering, tunnel or underground piping railroad crossing, road, the pipe hole engineering less than 1 meter such as river or building, which forms, to be used.

Description

An artificial pipe jacking hole reaming device

technical field

The utility model relates to an artificial pipe jacking hole reaming device, which belongs to the technical field of artificial pipe jacking construction equipment.

Background technique

In municipal water supply pipeline projects, tunnels or underground pipelines crossing railways, roads, rivers or buildings, artificial pipe jacking is a common construction method. Replacement, no damage to the environment, no mud and dust pollution, no interference with traffic, no damage to road structure, and has the characteristics of high pipe laying accuracy, short construction period, good construction safety, and low comprehensive construction cost, so it is widely used in municipal engineering. . In the pipe jacking construction, the roadheader is usually used to jack from the working well, and the hole is pulled out from the receiving well to complete the excavation of the pipe hole. This method is very suitable for the pipe hole with a diameter greater than 1 meter and more The construction cost of the pipe hole is obviously too high, therefore, it is necessary to improve it to reduce the construction cost.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide an artificial pipe jacking hole reaming device with simple structure and low production cost.

The technical scheme of the present utility model is:

An artificial pipe jacking reaming device is composed of a reaming head, a transfer case and a preformed pipe, the rear end of the reaming head is connected with a preformed pipe through the transfer case, and is characterized in that: the transfer case It is composed of a connecting rod, a front connecting piece and a rear connecting piece. The front connecting piece is a cup-shaped body, one end of the front connecting piece is fixed with an end cover by bolts, the other end of the front connecting piece is installed with a connecting ear plate, and the rear connecting piece is U-shaped body, a connecting rod is installed on the rear connecting piece through a fixing nut, one end of the connecting rod extends into the front connecting piece through the end cover, and the end of the connecting rod extending into the front connecting piece is provided with a flange, and the flange is connected to the end of the connecting rod. A thrust bearing is installed on the connecting rod between the covers; the preformed tube is a cylindrical body, an end plate is fixed at one end of the preformed tube, a connecting plate is arranged in the center of the end plate, and an end plate on the periphery of the connecting plate is installed Discharge holes are evenly distributed.

The connecting ear plate and the rear connecting piece are respectively provided with fixed pin rods.

There is a sliding connection between the connecting rod and the end cover.

The reaming head is in the shape of a spindle, one end of the reaming head is provided with a connecting sleeve, the other end of the reaming head is provided with a fixed connecting plate, and the middle part of the reaming head is evenly distributed with scrapers on the circumference. Cutting heads are evenly distributed on the circumference of the taper surface of the reaming head between the scraper and the connecting sleeve.

The reaming head is a hollow body, a partition plate is arranged in the reaming head, and water holes are evenly distributed on the reaming head at the front end of the partition plate.

The reaming head consists of an expansion ring, a main rod, a support rod, a front auxiliary pipe, a rear auxiliary rod, and the center part of the expansion ring of the scraping head. The main rod is fixedly installed through the cross-arranged support rods, and the end of the main rod is equipped with a main rod. Connect the fixing sleeve, the end of the main rod is equipped with a connecting plate, a plurality of front auxiliary pipes are inclined on the circumference of the main rod on one side of the expansion ring, and a plurality of rear auxiliary rods are inclined on the circumference of the main rod on the other side of the expansion ring. The front auxiliary pipe is communicated with the connection fixing sleeve; a plurality of scraping heads are arranged at intervals on the front auxiliary pipe, and water holes are arranged on the front auxiliary pipe between the scraping heads.

Cutting teeth are arranged on the circumference of the expansion ring in a cross shape.

The cutting head and the scraping head are respectively composed of a mounting block and an alloy cutter tooth arranged at intervals at the top of the mounting block.

The beneficial effects of the present utility model are:

The artificial pipe jacking and hole reaming device has a simple structure and good practicability. During the working process, the reaming head is driven to rotate by the drill pipe, and the diameter of the smaller diameter pipe hole can be expanded, and the pipe hole after the expansion is completed by preforming The pipe is extruded to facilitate the jacking of the culvert pipe in the later stage. The transfer device set between the reaming head and the pre-formed pipe can prevent the pre-formed pipe from rotating, so as to reduce the torque load of the drill pipe, thereby reducing the construction cost. It is especially suitable for the forming of pipe holes less than 1 meter in municipal water supply pipeline engineering, tunnels or underground pipelines crossing railways, roads, rivers or buildings.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the top view structure schematic diagram of the transfer case of the present utility model;

Fig. 3 is the structural representation of the preformed tube of the present invention;

Fig. 4 is the structural representation of the reaming head of the utility model;

5 is a partial cross-sectional structural schematic diagram of the reaming head of the present invention;

Fig. 6 is the structural schematic diagram after the improvement of the reaming head;

7 is a schematic structural diagram of the cutting head and the scraping head of the present invention.

In the picture: 1. Reaming head, 2. Transfer case, 3. Preformed tube, 4. Connecting rod, 5. Front connector, 6. Rear connector, 7. End cap, 8. Connection lug, 9 , thrust bearing, 10, fixing pin, 11, end plate, 12, connecting plate, 13, discharge hole, 14, connecting sleeve, 15, fixed connecting plate, 16, scraper, 17, cutting head, 18, fixing block , 19, alloy teeth, 20, partition plate, 21, water eye, 22, expansion ring, 23, main rod, 24, support rod, 25, front auxiliary pipe, 26, rear auxiliary rod, 27, scraping head, 28 , Connect the fixed sleeve, 29, the connecting plate, 30, the cutting teeth.

Detailed ways

The artificial pipe jacking reaming device is composed of a reaming head 1, a transfer case 2 and a preformed pipe 3. The rear end of the reaming head 1 is connected with a preformed pipe 3 through a transfer case 2, and the transfer case 2 is connected by a connecting rod. 4. The front connector 5 and the rear connector 6 are formed. The front connector 5 is a cup-shaped body, one end of the front connector 5 is fixed with an end cover 7 by bolts, and the other end of the front connector 5 is installed with a connecting ear plate 8 , the rear connecting piece 6 is a U-shaped body, and the connecting lug plate 8 and the rear connecting piece 6 are respectively provided with fixing pins 10 . A connecting rod 4 is mounted on the rear connecting piece 6 through a fixing nut 9 . The head of the connecting rod 4 extending into the front connecting piece 5 is provided with a flange, and the connecting rod 4 between the flange and the end cover 7 is provided with a thrust bearing 9 .

The preformed pipe 3 of the artificial pipe jacking reaming device is a cylindrical body, one end of the preformed pipe 3 is fixed with an end plate 11 , and a connecting plate 12 is arranged in the center of the end plate 11 . Discharge holes 13 are evenly distributed.

The reaming head 1 is in the shape of a spindle. One end of the reaming head 1 is provided with a connecting sleeve 14 to be used for threaded connection with the drill rod during operation. The other end of the reaming head 1 is provided with a fixed connection plate 15. , for interconnection with the connecting lugs 8 of the transfer case 2 during operation.

There are scraping knives 16 evenly distributed on the circumference of the middle part of the reaming head 1, so as to scrape the soil with the largest diameter during operation; the reaming head 1 between the scraping knives 16 and the connecting sleeve 14 is evenly distributed on the circumference of the cone surface with cutting heads 17 . The cutting head 17 is composed of a mounting block 18 and an alloy cutter tooth 19 arranged at intervals at the top of the mounting block 18 . The reaming head 1 of the artificial pipe jacking reaming device is a hollow body. The reaming head 1 is provided with a baffle 20 , and water holes 21 are evenly distributed on the reaming head 1 at the front end of the baffle 20 .

When the artificial pipe jacking and reaming device works, firstly, a drilling rig starts from the working well to horizontally drill a pipe hole with a smaller diameter, that is, the drill pipe starts from the working well, exits the hole in the receiving well, and then places the device in the receiving well. The reaming head 1 is threadedly connected to the drill pipe, and the device rotates with the drill pipe during the tripping process; thus, the soil in the pipe hole is cut by the cutting head 17 and the scraper 16, and a pipe hole with a larger diameter is gradually formed.

During the operation of the reaming head 1, since the preformed tube 3 is connected to the reaming head 1 through the transfer case 2, and the front connecting piece 5 and the rear connecting piece 6 of the transfer case 2 are movably connected by the connecting rod 4, so , the preformed tube 3 can move forward with the reaming head 1, but does not rotate with the reaming head 1, thereby effectively reducing the torque load of the drill pipe and reducing the construction cost. During the working process of the reaming head 1, high-pressure liquid can be injected into the reaming head 1 through the drill pipe. After the high-pressure liquid is ejected through the water hole 21, the rotation resistance of the reaming head 1 can be reduced, and the cutting head 17 and the scraper can be assisted. 16. The soil in the pipe hole is cut, and after the ejected high-pressure liquid and the soil produced by the cutting form mud, it can be discharged through the slurry discharge hole 13 of the preformed pipe 3 smoothly. After the pipe hole formed by the expansion of the reaming head 1 is extruded by the pre-formed pipe 3, it is beneficial to the jacking of the culvert pipe in the later stage. The artificial pipe jacking and pipe reaming device has a simple structure and good practicability. The reaming head 1 is driven to rotate by the drill pipe, which can expand the diameter of the smaller diameter pipe hole and reduce the construction cost, and is especially suitable for the municipal water supply pipeline. Engineering, tunnel or underground pipeline through railways, roads, rivers or buildings and other pipe tunnel projects less than 1 meter are used for forming.

As an optimization and improvement of the reaming head 1, the reaming head 1 is composed of an expansion ring 22, a main rod 23, a support rod 24, a front auxiliary pipe 25, a rear auxiliary rod 26 and a scraping head 27. The central part of the expansion ring 22 is arranged by crossing The support rod 24 is horizontally fixed with the main rod 23, the end of the main rod 23 is equipped with a connecting and fixing sleeve 28 to be used for threaded connection with the drill rod during operation, and the end of the main rod 23 is equipped with a connecting plate 29, It is used to connect with the connecting lugs 8 of the transfer case 2 during operation. The expansion ring 22 is provided with cutting teeth 20 in a cross shape on the circumference. The main rod 23 on one side of the expansion ring 22 is provided with a plurality of front auxiliary pipes 25 obliquely on the circumference, and the front auxiliary pipes 25 are communicated with the connection fixing sleeve 28; The mounting block 18 and the alloy cutter teeth 19 arranged at intervals at the top of the mounting block 18 are formed, and a water eye 21 is provided on the front auxiliary pipe 25 between the scraping heads 27 . A plurality of rear auxiliary rods 26 are obliquely arranged on the circumference of the main rod 23 on the other side of the expansion ring 22 . In this way, the reaming head 1 forms a frame cone to reduce the manufacturing cost and process difficulty, and the friction coefficient can be minimized during the working process, thereby reducing the torque load of the drill pipe. A water eye 21 is arranged between the heads 27, so that the ejected high-pressure liquid can evenly act on the wall of the pipe hole, so as to improve the hole reaming efficiency.

Claims (9)

1. An artificial pipe jacking reaming device, which consists of a reaming head (1), a transfer case (2) and a preformed tube (3), and the rear end of the reaming head (1) passes through the transfer case (2). ) is connected with a preformed tube (3), characterized in that: the transfer case (2) is composed of a connecting rod (4), a front connecting piece (5) and a rear connecting piece (6), and the front connecting piece (5) ) is a cup-shaped body, one end of the front connector (5) is fixed with an end cover (7) by bolts, the other end of the front connector (5) is installed with a connecting lug plate (8), and the rear connector (6) is U-shaped body, a connecting rod (4) is mounted on the rear connecting piece (6) through a fixing nut, and one end of the connecting rod (4) extends through the end cover (7) into the front connecting piece (5), and extends to the front connecting piece The end of the connecting rod (4) in (5) is provided with a flange, and the connecting rod (4) between the flange and the end cover (7) is equipped with a thrust bearing (9); the preformed tube (3) It is a cylindrical body, one end of the preformed tube (3) is fixed with an end plate (11), the central part of the end plate (11) is provided with a connecting plate (12), and the peripheral end plate (11) of the connecting plate (12) Slurry holes (13) are evenly distributed thereon. 2 . The artificial pipe jacking hole reaming device according to claim 1 , wherein the connecting lug plate ( 8 ) and the rear connecting piece ( 6 ) are respectively provided with fixing pins ( 10 ). 3 . 3 . The artificial pipe jacking hole reaming device according to claim 1 , wherein the connecting rod ( 4 ) and the end cover ( 7 ) are in a sliding connection. 4 . 4. An artificial pipe jacking reaming device according to claim 1, characterized in that the reaming head (1) is in the shape of a spindle, and one end of the reaming head (1) is provided with a connecting sleeve ( 14), the other end of the reaming head (1) is provided with a fixed connecting plate (15), and scraping knives (16) are evenly distributed on the circumference of the middle part of the reaming head (1), and the scraping knives (16) are connected with Cutting heads (17) are evenly distributed on the circumference of the conical surface of the reaming head (1) between the sleeves (14). 5. An artificial pipe jacking reaming device according to claim 4, characterized in that the reaming head (1) is a hollow body, and a baffle (20) is arranged in the reaming head (1). , water holes (21) are evenly distributed on the reaming head (1) at the front end of the partition plate (20). 6 . The artificial pipe jacking hole reaming device according to claim 4 , wherein the cutting head ( 17 ) is composed of a mounting block ( 18 ) and an alloy knife arranged at intervals at the top of the mounting block ( 18 ). 7 . Teeth (19) constitute. 7 . The artificial pipe jacking hole reaming device according to claim 1 , wherein the hole reaming head ( 1 ) consists of an expansion ring ( 22 ), a main rod ( 23 ), a support rod ( 24 ), The front auxiliary pipe (25), the rear auxiliary rod (26) and the scraping head (27) are formed. The central part of the expansion ring (22) is fixed with the main rod (23) through the cross-arranged support rods (24), and the main rod ( The end of 23) is equipped with a connecting and fixing sleeve (28), the end of the main rod (23) is equipped with a connecting plate (29), and the main rod (23) on the side of the expansion ring (22) is provided with a plurality of inclinations on the circumference. The front auxiliary pipe (25), the main rod (23) on the other side of the expansion ring (22) is provided with a plurality of rear auxiliary rods (26) inclined on the circumference; the front auxiliary pipe (25) is connected to the connection fixing sleeve (28) ) is connected; the front auxiliary pipe (25) is provided with a plurality of scraping heads (27) at intervals, and water eyes (21) are provided on the front auxiliary pipe (25) between the scraping heads (27). 8 . The artificial pipe jacking hole reaming device according to claim 7 , wherein the expansion ring ( 22 ) is provided with cutting teeth ( 30 ) in a cross shape on the circumference. 9 . 9 . The artificial pipe jacking hole reaming device according to claim 7 , wherein the scraping head ( 27 ) consists of a mounting block ( 18 ) and an alloy knife arranged at intervals at the top of the mounting block ( 18 ). 10 . Teeth (19) constitute.