CN210033446U

CN210033446U - Non-excavation underground transverse hole-making machine

Info

Publication number: CN210033446U
Application number: CN201920697955.5U
Authority: CN
Inventors: 申丽明; 彭立钧
Original assignee: Anhui Haoyu Construction Engineering Co Ltd
Current assignee: Anhui Haoyu Construction Engineering Co Ltd
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-02-07
Anticipated expiration: 2029-05-15

Abstract

The utility model relates to a non-excavation underground transverse hole making machine, which comprises a bottom frame, a guide rail fixed on the bottom frame, a drilling component and a feeding component for driving the drilling component to move along the direction of the guide rail; the feeding assembly comprises a supporting seat and a connecting seat which are connected with the guide rail in a sliding manner respectively; a hydraulic device for driving the support seat and the support seat to be away from or close to each other along the direction of the guide rail is connected between the connection seat and the support seat; the supporting seat and the connecting seat are respectively provided with a limiting component which limits the feeding component to slide only in one direction between the supporting seat and the connecting seat and the guide rail, the problem that the feeding device needs to be manually and frequently operated when being stepped is solved, and the device has the advantages of simplicity and convenience in operation and high efficiency.

Description

Non-excavation underground transverse hole-making machine

Technical Field

The utility model relates to a non-excavation technical field especially relates to a non-excavation underground transverse hole-making machine.

Background

The non-excavation is a new construction technology for laying, replacing and repairing various underground pipelines by utilizing various rock-soil drilling equipment and technical means under the condition of excavating on a very small part of the earth surface (generally referred to as small-area excavation at an inlet and an outlet) in the modes of guiding, directional drilling and the like, does not obstruct traffic, does not damage green lands and vegetation, does not influence the normal life and work order of shops, hospitals, schools and residents, solves the problem that the traditional excavation construction interferes with the life of the residents, and damages and adverse effects on the traffic, environment and the foundation of surrounding buildings, and therefore has higher social and economic effects.

Chinese patent No. CN2237163Y discloses a multifunctional hole making machine applied to trenchless underground, which mainly comprises a drilling tool, a spiral drill rod, a reinforcing guide sleeve, a transmission device and a stepping feeding mechanism. The drilling machine has a bidirectional operation function, can complete reaming operation by retracting the drill rod, and can be widely applied to the construction of underground pipelines without damaging the ground surface.

The drilling machine has the disadvantages that the drilling machine is stepped through the hydraulic oil cylinder and the positioning bolt, the matching of the positioning hole and the positioning bolt needs to be manually realized when a stroke is finished, and after the stroke is finished, the feeding mechanism needs to be manually pushed forward by a distance of a flow, the positioning bolt is inserted again, and the complexity of operation is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a non-excavation underground lateral hole-making machine, it has solved the problem that feeding device needs manual frequent operation when step-by-step, has easy and simple to handle, efficient advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions: a non-excavation underground transverse hole making machine comprises a bottom frame, a guide rail fixed on the bottom frame, a drilling assembly and a feeding assembly for driving the drilling assembly to displace along the direction of the guide rail; the feeding assembly comprises a supporting seat and a connecting seat which are connected with the guide rail in a sliding manner respectively; a hydraulic device for driving the support seat and the support seat to be away from or close to each other along the direction of the guide rail is connected between the connection seat and the support seat; and a limiting component for limiting the feeding component to slide only in one direction is arranged between the supporting seat and the guide rail and between the connecting seat and the guide rail respectively.

By adopting the technical scheme, the limiting assembly for limiting the feeding assembly to slide only in one direction is arranged between the supporting seat and the connecting seat, when the hydraulic device has thrust, the supporting seat and the connecting seat tend to be away from each other, at the moment, only one-way sliding can be carried out due to the action of the limiting assembly, at the moment, the supporting seat is static relative to the guide rail, and the connecting seat is away from the supporting seat along the direction of the guide rail; when the hydraulic device is provided with tension, the supporting seat and the connecting seat tend to be close to each other, the connecting seat is static relative to the guide rail at the moment, the supporting seat is close to the connecting seat along the direction of the guide rail, namely, one stroke of the hydraulic device finishes the distance of feeding the feeding assembly by one stroke in one direction; when reverse unidirectional sliding is required, only the direction of the limiting assembly is changed when the feeding direction of the drilling assembly needs to be changed; one-way stepping of the drilling assembly can be realized by the limiting assembly, stepping of the drilling assembly is not required to be completed by respectively inserting and pulling the positioning pins into and out of the feeding assembly and the drilling assembly, and therefore working efficiency is improved and operation is simplified.

The utility model discloses further set up to: the limiting assembly comprises a plurality of limiting grooves arranged on the guide rail along the direction of the guide rail, limiting through holes respectively arranged on the supporting seat and the connecting seat, and limiting blocks embedded in the limiting through holes; the limiting block comprises a bolt sleeve and a bolt; the plug pin sleeve is connected with the limiting through hole in an embedded mode; the bolt is connected with the bolt sleeve in an inserting mode, and a guide surface which is abutted against the edge of the side wall of the limiting groove is arranged on the bolt along the sliding direction.

By adopting the technical scheme, when the limiting block is contacted with the upper surface of the guide rail, the bolt is extruded by the surface of the guide rail and is pressed in the bolt sleeve, when the limiting block passes through the upper part of the limiting groove, the bolt is not extruded by the upper surface of the guide rail, and one end of the bolt with the guide surface falls down by gravity and extends out of the bolt sleeve; when the bolt slides relative to the limiting groove, the guide surface is abutted against the edge of the side wall of the limiting groove, the force of the edge abutting against the guide surface is divided into force for promoting the bolt to move upwards, the bolt is pressed into the bolt sleeve at the moment, the limiting groove is not in limiting connection with the limiting through hole, and the limiting block slides over the limiting groove; when the side of the bolt with the guide is back to the opposite side and is close to the edge of the outer edge of the limiting groove, the bolt limits the sliding of the supporting seat or the connecting seat in the direction of the guide rail; after the limiting assembly is arranged, the feeding assembly can only slide along one direction, and can move forward or backward for multiple times through stretching and retracting of the hydraulic device; the turning guide surface faces to the direction of feed to be changed.

The utility model discloses further set up to: the limiting block comprises a handle which penetrates through the bolt sleeve and is fixedly connected with one end of the bolt, which is far away from the guide rail, wherein at least one of the inner wall of the bolt sleeve and the side surface of the bolt is cylindrical; the handle is provided with a wall rod fixedly connected to one end of the bolt and a wall support fixedly connected to the other end of the wall rod, wherein the inner wall of the wall support is in rotation-stopping connection with the side face of the bolt sleeve; a spring for forcing the bolt to extend out of the bolt sleeve is arranged between one end of the bolt close to the bolt sleeve and the bolt sleeve.

By adopting the technical scheme, the bolt can be conveniently turned by adding the handle; and the rotation stopping connection of the handle and the bolt sleeve can prevent the bolt from being separated from the bolt sleeve due to shaking generated in the drilling process.

The utility model discloses further set up to: the two sides of the supporting seat are respectively provided with a first sliding seat connected with the guide rail in a sliding manner, the two sides of the connecting seat are respectively provided with a second sliding seat connected with the guide rail in a sliding manner, and the openings of the sliding seats of the first sliding seat and the second sliding seat face the side surface of the guide rail; the hydraulic device comprises an oil cylinder fixedly connected to the first sliding seat, and a piston rod of the oil cylinder is in threaded connection with the second sliding seat; wherein the piston rod passes through the second sliding seat and pushes against the inner wall of a U-shaped groove formed in the side surface of the plug sleeve.

By adopting the technical scheme, axial pressure is applied to the plug pin sleeve by increasing the thread pretightening force of the piston rod and the second sliding seat, so that the friction force between the plug pin sleeve and the limiting through hole can be increased, and the effect of limiting the plug pin sleeve to move up and down is achieved.

The utility model discloses further set up to: and a damping ring is arranged between the inner wall of the limiting through hole and the plug pin sleeve.

By adopting the technical scheme, the friction between the limiting through hole and the plug sleeve is increased, and the movement of the plug sleeve is prevented.

The utility model discloses further set up to: and the guide surface at one end of the bolt and the outer wall surface of the bolt are in arc transition.

Adopt above-mentioned technical scheme, when the bolt is pressed into in the bolt cover and the bolt has the guide surface one end minimum and when guide rail surface sliding connection, the noise that produces when the mar on the reducible guide rail surface of arc surface and relative slip.

The utility model discloses further set up to: the handle is provided with a mark for indicating the position and the orientation of the guide surface of the bolt.

By adopting the technical scheme, because the guide surface of the bolt is positioned at the position which is invisible to an operator when the bolt is used, the mark is added, so that the operator can clearly know the unidirectional feeding direction; and the turning error generated when the orientation of the turning guide surface is changed is reduced.

The utility model discloses further set up to: the drilling assembly comprises a motor fixed on the connecting seat, a rotator driven by the motor and a guide drill bit fixedly connected with the rotator and driven by the motor; the guide drill bit is far away from the supporting seat and positioned outside the connecting seat, and the rotating center of the guide drill bit is collinear with the rotating center of the motor; wherein the gyrator is connected with the connecting seat in a rotating and sealing way.

By adopting the technical scheme, when drilling, the gyrator plays a role in connecting the motor transmission shaft with the guide drill bit or the guide rod, and the gyrator plays a role in supporting the guide drill bit and the guide rod because the gyrator is rotationally connected with the inner wall of the connecting seat, so that the stability and the precision of drilling are improved.

The utility model discloses further set up to: an inner cavity with the axis collinear with the rotation center line of the gyrator is arranged in the connecting seat, and a partition plate which is positioned between the motor and the gyrator and keeps sealed with the connecting seat is arranged in the inner cavity; the baffle plate is provided with a central hole which is used for a transmission shaft of the motor to penetrate and is in dynamic sealing connection with the transmission shaft of the motor; and the liquid injected from the water inlet I enters the containing cavity between the partition plate and the gyrator and then flows into the hollow part of the guide drill bit through the water inlet II arranged on the gyrator.

By adopting the technical scheme, the mud can enter the guide drill bit from the outside and then is injected into the drill hole by the guide drill bit, so that the hole wall can be better protected, the friction coefficient of the hole wall is reduced, and the drilling tool is prevented from being stuck.

The utility model discloses further set up to: the rotation center of the drilling assembly is collinear with the center of the acting force of the hydraulic device along the direction of the guide rail.

By adopting the technical scheme, the problem that the pressure of the hydraulic device and the drilling impact force form the overturning moment on the drilling assembly to influence the drilling precision and the operation quality can be avoided, and the hydraulic device can reduce the impact force on the motor and protect the motor.

To sum up, the utility model discloses following beneficial effect has:

1. by designing the limiting component which limits the feeding component to only slide in one direction, the feeding component does not need to manually plug and pull a positioning pin when feeding for multiple strokes, so that the operation is simple and convenient;

2. the acting force axis of the hydraulic device is collinear with the drilling impact force axis, so that the influence of the overturning moment on the drilling assembly can be avoided, and the drilling precision and stability are improved.

Drawings

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

FIG. 2 is a schematic structural diagram of the stopper of the present invention;

fig. 3 is a schematic cross-sectional view of the plane a-a in fig. 1 according to the present invention.

In the figure, 1, a chassis; 2. a guide rail; 3. a feeding assembly; 4. a drilling assembly; 5. a limiting component; 31. a supporting seat; 32. a connecting seat; 33. a hydraulic device; 41. a pilot bit; 42. a gyrator; 43. a motor; 51. a limiting groove; 52. a limiting through hole; 53. a limiting block; 311. a first slider; 321. a second slide carriage; 322. an inner cavity; 323. a partition plate; 324. a first water inlet; 325. a central bore; 331. an oil cylinder; 332. a piston rod; 421. a water inlet II; 531. a bolt; 532. a plug sleeve; 533. a spring; 534. identifying; 535. a handle; 536. a through hole; 537. a damping ring; 538. a groove; 5351. a wall support; 5352. a wall bar; 5321. a U-shaped groove; 5322. and (4) wall holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A non-excavation underground transverse hole making machine is shown in figure 1, and comprises a bottom frame 1, a guide rail 2, a feeding assembly 3 connected to the guide rail 2 in a sliding mode, a drilling assembly 4 fixedly connected to the feeding assembly 3, and a limiting assembly 5 arranged between the feeding assembly 3 and the guide rail 2; when the drilling machine is used, the underframe 1 is erected in a working pit, the two guide rails 2 are respectively fixed on two sides of the underframe 1, and the directions of the guide rails 2 are consistent with the drilling working direction; the feeding assembly 3 drives the drilling assembly 4 to drill or retract along the guide rail 2.

Referring to fig. 1, the feeding assembly 3 includes a connecting seat 32 and a supporting seat 31 sequentially arranged on the guide rail 2; one end of the connecting seat 32 close to the drill hole and one end of the supporting seat 31 far away from the drill hole; two first sliding seats 311 connected to the two guide rails 2 in a sliding manner are respectively arranged on two sides of the supporting seat 31, two second sliding seats 321 connected to the two guide rails 2 in a sliding manner are respectively arranged on two sides of the connecting seat 32, and sliding seat openings of the first sliding seats 311 and the second sliding seats 321 face the outer side surfaces of the guide rails 2; the feeding assembly 3 further comprises hydraulic devices 33 fixedly connected between the first slide 311 and the second slide 321, respectively, and the hydraulic devices 33 drive the support seat 31 and the connecting seat 32 to move closer to or away from each other in the direction of the guide rail 2.

Referring to fig. 1, the limiting assembly 5 includes a plurality of limiting grooves 51 disposed on the guide rail 2 along the direction of the guide rail 2, limiting through holes 52 respectively disposed on the first sliding seat 311 and the second sliding seat 321, and limiting blocks 53 connected to the limiting through holes 52 in an embedded manner; the opening position of the stopper through-hole 52 corresponds to the opening position of the stopper groove 51 in the direction perpendicular to the upper surface of the guide rail 2.

Referring to fig. 2, the limiting block 53 includes a plug bush 532, a cylindrical plug 531 and a handle 535 fixedly connected to one end of the plug 531 far from the guide rail 2, the plug 531 is connected with the plug bush 532 in an inserting manner, a groove 538 is formed in the inner wall of the limiting through hole 52, and a damping ring 537 in damping connection with the plug bush 532 is placed in the groove 538; a guide surface is arranged between the end surface and the side surface of one end of the bolt 531, which is far away from the bolt sleeve 532, and the joint of the guide surfaces is in arc transition; wherein the handle 535 passes through a through hole 536 opened above the pin sleeve 532, the handle 535 is provided with a wall rod 5352 fixedly connected with one end of the pin 531 and a wall support 5351 fixedly connected with the other end of the wall rod 5352, and the interference surface between the inner wall of the wall support 5351 and the pin sleeve 532 is a plane; a spring 533 which forces the bolt 531 to extend out of the bolt sleeve 532 is arranged between one end of the bolt 531 close to the bolt sleeve 532 and the bolt sleeve 532; the pin sleeve 532 is provided with a chamfer as a mark 534, and the chamfer is positioned between the side surface and the upper surface of the handle 535 opposite to the guide surface; when the end of the bolt 531 with the guide surface extends into the limiting groove 51, the guide surface is abutted against the edge of the side wall of the limiting groove 51 along the sliding direction; the hydraulic device 33 comprises four oil cylinders 331 fixedly connected to the first sliding base 311, and a piston rod 332 of each oil cylinder 331 is fixedly connected with the second sliding base 321; the piston rod 332 passes through a wall hole 5322 formed in the second sliding seat 321, and the piston rod 332 presses against the inner wall of a U-shaped groove 5321 formed in the side surface of the pin sleeve 532, so that the pressing force limits the pin sleeve 532 from moving up and down.

Referring to fig. 3, the drilling assembly 4 sequentially includes a pilot bit 41, a rotator 42 fixedly connected to the pilot bit 41, and a motor 43 connected to the rotator 42 through a coupling along the direction of the guide rail 2; the motor drives the gyrator 42 to rotate, wherein the rotation center of the pilot bit 41 coincides with the rotation center of the gyrator 42; an inner cavity 322 is arranged in the connecting seat 32, and the axis of the inner cavity is collinear with the rotation center of the gyrator 42 and collinear with the center lines of the acting forces of the four oil cylinders 331; the motor 43 is fixed on the inner wall of the inner cavity 322, and the axis of the transmission shaft of the motor is collinear with the axis of the inner cavity 322; gyrator 42 is positioned within interior cavity 322 and is in dynamic sealing engagement with the interior wall of interior cavity 322.

Referring to fig. 3, a partition 323 positioned between the motor 43 and the coupler is arranged in the inner cavity 322, and the partition 323 is hermetically connected with the inner wall of the inner cavity 322; the partition plate 323 is provided with a central hole 325 for the transmission shaft of the motor 43 to pass through, and the transmission shaft of the motor 43 is connected with the central hole 325 through a pair of sealed waterproof angular contact ball bearings; the cavity between the partition plate 323 and the gyrator 42 is communicated with the outside through a water inlet I324 formed in the top end of the connecting base 32; the water injected from the first water inlet 324 enters the cavity between the partition 323 and the gyrator 42, and then flows into the hollow part of the pilot bit 41 through the second water inlet 421 provided on the gyrator 42.

The working mode is as follows: (refer to FIGS. 1, 2, and 3.)

S1, preparing for work, wherein the limiting block 53 is connected with the limiting through hole 52 in an embedded mode, and the guide surface of the bolt 531 faces the drill hole;

s2, the drilling assembly 4 operates, the motor 43 is started, and the motor 43 drives the guide drill bit 41 to rotate at a high speed;

s3, the feeding component 3 is started, the oil cylinder 331 has thrust to force the support seat 31 to move away from the drill hole, and the connection seat 32 to move close to the drill hole; when the limiting block 53 is in contact with the upper surface of the guide rail 2, the bolt 531 is extruded by the surface of the guide rail 2, the bolt 531 is pressed in the bolt sleeve 532, and the limiting block 53 can slide relative to the surface of the guide rail 2; when the limiting block 53 passes above the limiting groove 51, the bolt 531 is not extruded by the upper surface of the guide rail 2 any more, and one end of the bolt 531 with the guide surface extends out of the bolt sleeve 532 and is positioned in the limiting groove 51; at the moment, one surface of the bolt 531 on the connecting seat 32, which is provided with the guide surface, is directly opposite to and close to the edge of the side wall of the limiting groove 51, the force of the edge against the guide surface is divided into force for promoting the bolt 531 to move upwards, at the moment, the bolt 531 is pressed into the bolt sleeve 532, the limiting groove 51 is connected with the limiting through hole 52 without limitation, and the limiting through hole 52 slides over the limiting groove 51; at this time, one surface of the bolt 531 on the support seat 31 with the guide surface faces back to the sliding direction, and the bolt 531 is clamped between the limiting through hole 52 and the limiting groove 51, so that the support seat 31 and the guide rail 2 are relatively static; namely, when the supporting seat 31 is fixed and the connecting seat 32 can slide, the thrust of the oil cylinder 331 drives the connecting seat 32 to slide by a stroke of a hydraulic system, and the first stroke of drilling is finished;

before the second stroke of S4, the oil cylinder 331 has tension to force the support seat 31 to approach the drill hole and to move, and the connection seat 32 to move away from the drill hole; at the moment, due to the change of the sliding trend of the supporting seat 31 and the connecting seat 32 and the action of the limiting component 5, namely the connecting seat 32 is fixed, the supporting seat 31 can slide, and the pulling force of the oil cylinder 331 slides the supporting seat 31 to the drilling direction by a stroke;

s5, completing one drilling stroke by one pushing force and pulling force of the oil cylinder 331; multiple drilling strokes can be completed by multiple pushing and pulling forces; the supporting seat 31 and the connecting seat 32 realize intermittent equidistant unidirectional stepping close to the drill hole on the guide rail 2, and the guide drill 41 realizes multiple travel distance drilling;

s6 when the pilot bit 41 retracts, the handle 535 is lifted upwards and the guiding surface is turned to face, and at this time, the supporting seat 31 and the connecting seat 32 perform intermittent equidistant unidirectional stepping on the guide rail 2 away from the drilling hole, so as to retract the pilot bit 41 by multiple travel distances.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws within the scope of the present invention.

Claims

1. The utility model provides a horizontal hole making machine in non-excavation underground, includes chassis (1), is fixed in guide rail (2) on chassis (1), characterized by: the drilling machine also comprises a drilling assembly (4) and a feeding assembly (3) for driving the drilling assembly (4) to displace along the direction of the guide rail (2); the feeding assembly (3) comprises a supporting seat (31) and a connecting seat (32) which are connected to the guide rail (2) in a sliding manner respectively; a hydraulic device (33) for driving the support seat (31) and the connection seat (32) to be away from or close to each other along the direction of the guide rail (2) is connected between the connection seat (32) and the support seat (31); and a limiting component (5) for limiting the feed component (3) to slide only in one direction is arranged between the support seat (31) and the guide rail (2) and between the connection seat (32) and the guide rail (2).

2. The trenchless underground lateral hole forming machine of claim 1, wherein: the limiting assembly (5) comprises a plurality of limiting grooves (51) arranged on the guide rail (2) along the direction of the guide rail, limiting through holes (52) respectively arranged on the supporting seat (31) and the connecting seat (32), and limiting blocks (53) embedded in the limiting through holes (52); wherein the limiting block (53) comprises a bolt sleeve (532) and a bolt (531); the pin sleeve (532) is embedded and connected with the limiting through hole (52); the bolt (531) is in plug-in connection with the bolt sleeve (532), wherein the bolt (531) is provided with a guide surface which is abutted against the edge of the side wall of the limiting groove (51) along the sliding direction.

3. The trenchless underground lateral hole forming machine of claim 2, wherein: the limiting block (53) comprises a handle (535) which penetrates through a bolt sleeve (532) and is fixedly connected with one end, far away from the guide rail (2), of the bolt (531), wherein at least one of the inner wall of the bolt sleeve (532) and the side surface of the bolt (531) is cylindrical; the handle (535) is provided with a wall rod (5352) fixedly connected with one end of the bolt (531) and a wall support (5351) fixedly connected with the other end of the wall rod (5352), wherein the inner wall of the wall support (5351) is in rotation stopping connection with the side surface of the bolt sleeve (532); a spring (533) which forces the bolt (531) to extend out of the bolt sleeve (532) is arranged between one end of the bolt (531) close to the bolt sleeve (532) and the bolt sleeve (532).

4. The trenchless underground lateral hole forming machine of claim 3, wherein: the two sides of the supporting seat (31) are respectively provided with a first sliding seat (311) connected to the guide rail (2) in a sliding manner, the two sides of the connecting seat (32) are respectively provided with a second sliding seat (321) connected to the guide rail (2) in a sliding manner, and the sliding seat openings of the first sliding seat (311) and the second sliding seat (321) face the side face of the guide rail (2); the hydraulic device (33) comprises an oil cylinder (331) fixedly connected to the first sliding seat (311), and a piston rod (332) of the oil cylinder (331) is connected to the second sliding seat (321) in a threaded mode; wherein the piston rod (332) penetrates through the second sliding seat (321) and is pressed against the inner wall of a U-shaped groove (5321) formed in the side surface of the bolt sleeve (532).

5. The trenchless underground lateral hole forming machine of claim 3 or 4, wherein: and a damping ring (537) is arranged between the inner wall of the limiting through hole (52) and the plug pin sleeve (532).

6. The trenchless underground lateral hole forming machine of claim 5, wherein: and a guide surface at one end of the bolt (531) is in arc transition with the outer wall surface of the bolt (531).

7. The trenchless underground lateral hole forming machine of claim 6, wherein: and the handle (535) is provided with a mark (534) for indicating the position and the orientation of the guide surface of the bolt (531).

8. The trenchless underground lateral hole forming machine of claim 1, wherein: the drilling assembly (4) comprises a motor (43) fixed on the connecting seat (32), a rotator (42) driven by the motor (43), and a guide drill bit (41) which is fixedly connected with the rotator (42) and driven by the motor (43); the guide drill bit (41) is far away from the supporting seat (31) and is positioned outside the connecting seat (32), and the rotating center of the guide drill bit (41) is collinear with the rotating center of the motor (43); wherein the gyrator (42) is connected with the connecting seat (32) in a rotating and sealing way.

9. The trenchless underground lateral hole forming machine of claim 8, wherein: an inner cavity (322) with the axis collinear with the rotation center line of the gyrator (42) is arranged in the connecting seat (32), and a partition plate (323) which is positioned between the motor (43) and the gyrator (42) and keeps sealed with the connecting seat (32) is arranged in the inner cavity (322); the baffle plate (323) is provided with a central hole (325) which is used for a transmission shaft of the motor (43) to penetrate and is in dynamic sealing connection with the transmission shaft of the motor (43), and a cavity between the baffle plate (323) and the gyrator (42) is communicated with the outside through a water inlet I (324) arranged on the connecting seat (32); the liquid injected from the first water inlet (324) enters the cavity between the partition plate (323) and the gyrator (42), and then flows into the hollow part of the guide drill bit (41) through a second water inlet (421) arranged on the gyrator (42).

10. The trenchless underground lateral hole forming machine of claim 1, wherein: the rotation center of the drilling assembly (4) is collinear with the center of acting force of the hydraulic device (33) along the direction of the guide rail (2).