CN210195763U

CN210195763U - Long-distance rock pipe jacking machine

Info

Publication number: CN210195763U
Application number: CN201921172421.7U
Authority: CN
Inventors: Xiaoyong Zhang; 张肖勇; Minggang Ma; 马明刚; Yuan Liu; 刘源
Original assignee: Shandong Youtuo Engineering Equipment Co Ltd
Current assignee: Shandong Youtuo Engineering Equipment Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-03-27
Anticipated expiration: 2029-07-24

Abstract

The utility model provides a long distance rock pipe jacking machine, which comprises a housin, the blade disc, the hobbing cutter, the scraper, the blade disc bracket, the broken strip of awl section of thick bamboo, the broken storehouse of rock, the camera, blade disc actuating system, hydraulic pressure valves, built-in hydraulic pressure station, muddy water valves and deviation correcting device, the hobbing cutter passes through the hobbing cutter case postposition on the blade disc, the broken strip setting of blade disc bracket and awl section of thick bamboo is in the broken storehouse of rock, the broken strip of awl section of thick bamboo encircles in the outside of blade disc bracket, the rear side of the broken strip of awl section of thick bamboo is provided with the water jacket, the inside of aircraft nose shell is provided with slewing bearing transmission system and leading muddy water circulation system, slewing bearing transmission system includes hollow transmission shaft and front and back door, leading muddy water circulation system includes delivery pipe and water jacket, be provided. The utility model discloses be convenient for the workman inspect and change the cutter, the resistance of casing pipe wall is little moreover, and the propulsion distance is long, and work efficiency is high, and construction cost and risk are low to reasonable in design, simple structure are fit for extensive the popularization.

Description

Long-distance rock pipe jacking machine

Technical Field

The utility model belongs to the technical field of the pipeline construction equipment, especially, relate to a long distance rock pipe push bench.

Background

The pipe jacking method has the most practical value and the most advanced method in the technical field of trenchless pipeline construction, is a trenchless or less pipeline embedding construction technology, and thoroughly solves the problems of damage to urban buildings, road traffic blockage and the like in pipeline construction. The pipe push bench is a tunnel engineering special device integrating subject technologies such as mechanical, hydraulic, electric control and measurement, and is widely applied to tunnel excavation and pipeline laying engineering.

The technology of the existing push bench suitable for common stratum is mature, but the existing push bench suitable for rock stratum has the disadvantages of more internal equipment, high power, high equipment performance requirement, complex control and very difficult design, and related products are not mature at home at present; moreover, when the rock geology is jacked in, because the cutter is quick in loss and short in service life, once the hob is damaged, jacking and rock breaking are seriously influenced; the conventional water circulation design can deposit tunneling broken stones, sand grains and the like on the outer side of the pipe wall, and increase the pushing friction resistance. These problems are very likely to cause engineering failures when they are serious. Therefore, the innovative research and design of the rock push bench are significant for solving the industrial demand.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that above-mentioned push bench exists, provide a reasonable in design, simple structure, can conveniently change the cutter, effectively reduce the outer long distance rock push bench that long distance rock stratum long distance pushed forward of long distance sand of wall.

In order to achieve the purpose, the technical scheme adopted by the utility model is that the long-distance rock push bench provided by the utility model comprises a shell, a cutter head bracket, a rock crushing bin, a camera, a cutter head driving system, a hydraulic valve set, an internal hydraulic station, a muddy water valve set, a deviation correcting device, a control system and a measuring system, wherein the shell comprises a machine head shell and an auxiliary barrel shell which are arranged in front and back, the cutter head is provided with a hobbing cutter and a scraper, the hobbing cutter is arranged on the cutter head through a hobbing cutter box in a rear mode, the cutter head bracket is arranged in the rock crushing bin, a cone crushing strip is arranged in the rock crushing bin, the cone crushing strip is arranged outside the cutter head bracket in a surrounding mode, the inside of the machine head shell is provided with a slewing bearing driving system and a front muddy water circulating system, the slewing bearing driving system comprises a hollow transmission shaft, the hollow part of transmission shaft is cutter head storehouse manhole passageway, cutter head storehouse manhole passageway and the broken storehouse intercommunication of rock, the front and back end of transmission shaft is provided with preceding door and back door respectively, leading muddy water circulation system includes the water pipe and is close to the water jacket that the broken strip rear side of awl section of thick bamboo set up, be provided with the bath spout on the mantle wall of water jacket.

Preferably, the cutter head bracket is provided with a plurality of circular arrays, and two ends of the cutter head bracket are respectively connected with the cutter head and the slewing bearing transmission system.

Preferably, the water jacket is of an annular structure and comprises a conical surface for supporting the cone crushing strips.

Preferably, a main shaft is arranged at the center of the hob, end covers are arranged at two ends of the hob, the main shaft is in contact with the end covers but does not extend out of the end faces of the end covers, the end covers are supported in the hob box, and the hob box is a single-edge hob box or a multi-edge hob box.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model provides a long distance rock pipe jacking machine, through adopting the hobbing cutter of back-loading structure and the slewing bearing system of cavity form to be favorable to the workman to inspect and change the cutter, simultaneously, the water jacket is towards the outer deposit that can reduce the grit granule outside the wall of washing water outside the wall, reduces the resistance of pipe wall, has prolonged the propulsion distance of pipe jacking machine in rock stratum greatly, has improved work efficiency, has reduced construction cost and risk; the gravel and the slurry in the tunneling process can enter the rock crushing bin for secondary crushing, so that the slurry discharge efficiency is improved. The utility model relates to a rationally, simple structure, be fit for extensive popularization.

Drawings

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

FIG. 1 is a schematic structural diagram of a long-reach rock pipe jacking machine provided by an embodiment;

FIG. 2 is a schematic structural diagram of a hob and a hob box provided by the embodiment;

in the above figures, 1, a cutter head; 2. hobbing cutters; 3. a scraper; 4. a cutter head bracket; 5. a front door; 6. a cutterhead bin manhole channel; 7. a rear door; 8. a cutter head drive system; 9. a handpiece housing; 10. a hydraulic valve block; 11. a slewing bearing drive system; 12. an auxiliary cartridge housing; 13. a built-in hydraulic station; 14. a flushing spout; 15. crushing strips by using a cone; 16. a water jacket; 17. a deviation correcting device; 18. a muddy water valve bank; 19. a camera; 20. a sludge inlet and outlet pipeline; 21. a hob box; 22. an end cap; 23. rock crushing storehouse.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the same directions as the drawings, and do not limit the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment, as shown in fig. 1 and 2, the utility model provides a pair of long distance rock push bench, including casing, blade disc 1, blade disc bracket 4, rock crushing storehouse 23, camera 19, blade disc actuating system 8, hydraulic pressure valves 10, built-in hydraulic pressure station 13, muddy water valves 18, deviation correcting device 17, control system and measurement system, the casing is provided with hobbing cutter 2 and scraper 3 including the aircraft nose shell 9 and the supplementary section of thick bamboo shell 12 that set up around including, on the blade disc 1. Wherein, the structural composition of rock crushing storehouse 23, blade disc actuating system 8, hydraulic valve group 9, built-in hydraulic pressure station 13, muddy water valves 18, deviation correcting device 17, control system and measurement system and the overall arrangement inside the pipe pushing jack are prior art, and this embodiment is no longer repeated here. On the basis, the utility model is mainly improved from two aspects, one is the structure and the arrangement form of the hob and the inspection and maintenance aspects of the hob; the second is an improvement made in terms of resistance outside the housing wall.

Specifically, the utility model provides a hobbing cutter 2 passes through hobbing cutter case 21 postposition on the blade disc, and the inside of aircraft nose shell 9 is provided with the slewing bearing transmission system 11 that is located blade disc and the broken storehouse rear side of rock, and the gyration is supported transmission system 11 and is included hollow transmission shaft, and the hollow part of transmission shaft is blade disc storehouse manhole passageway 6, and blade disc storehouse manhole passageway 6 communicates with the broken storehouse 23 of rock, and the front and back end of transmission shaft is provided with door 5 before and door 7 after respectively. The operating worker can be used in the manhole channel 6 of the cutter head bin, the hob arranged on the cutter head behind can be checked and replaced by the operating worker, the push bench does not need to be withdrawn for replacement and maintenance, and the jacking distance of the push bench in a rock stratum is effectively prolonged.

In order to improve the discharge efficiency of mud, the utility model provides a blade disc bracket 4 sets up in the broken storehouse of rock 23, is provided with the broken strip 15 of awl section of thick bamboo in the broken storehouse of rock 23, and the broken strip 15 of awl section of thick bamboo encircles the outside that sets up at blade disc bracket 4. When the cutter head 1 rotates, under the thrust of a rear matched propulsion device, the hob 2 can crush rocks into a larger block, large blocks of rocks are collected into the rock crushing bin 23 under the common action of a scraper and circulating water, the cutter head bracket 4 crushes the large blocks of rocks into small particles through staggered extrusion with the cone crushing strips 15 when rotating, the small particles are then discharged by the circulating water, the circulation is repeated until the tunneling is completed, and thus the circulation rate of slurry is improved by crushing the rock particles, and further the working efficiency of the whole system is improved.

Further, the utility model discloses still be provided with leading muddy water circulation system in aircraft nose shell 9's inside, leading muddy water circulation system includes the water supply pipe and is close to the water jacket 16 that the broken strip rear side of awl section of thick bamboo set up, is provided with bath spout 14 on water jacket 16's the mantle wall. Circulating water reaches the water jacket 16 through the water supply pipe and is sprayed out through the flushing nozzle 14, nearby sandstone particles are blown away forwards, deposition outside the wall is prevented, increase of pipe wall resistance is avoided, the propelling distance of the pipe jacking machine in a rock stratum is greatly increased, the working efficiency is improved, and the construction cost and risk are reduced; the sand and stone particles blown forward can enter the rock crushing bin 23 from the front end of the cutter head 1 to be crushed and discharged.

In order to improve the utilization ratio of blade disc bracket, the utility model provides a blade disc bracket 4 has a plurality of and is circular array, and the both ends of blade disc bracket are connected with blade disc and slewing bearing transmission system respectively. The cutter head bracket 4 plays a role in supporting the cutter head and performing secondary crushing in the rock crushing bin, and is high in supporting strength, strong in jacking capacity of the push bench and high in working efficiency.

In order to improve the utilization ratio of the water jacket, the utility model provides a water jacket 16 is the loop configuration, and water jacket 16 is including the conical surface that is used for supporting cone section of thick bamboo breaking strip 15. On one hand, the annular structural design can improve the space utilization rate from the structural aspect of the water jacket, and the water jacket has the effect of increasing water pressure to a certain extent, thereby being beneficial to the outward spraying of circulating water; on the other hand, the water jacket 16 also plays a role of supporting the cone crushing strip 15, and can even be directly used as the main wall surface of the cone crushing strip.

In order to improve the work efficiency of pipe pushing jack, the utility model provides a 2 centers of hobbing cutter are provided with the main shaft, and the both ends of hobbing cutter are provided with end cover 22, and the main shaft nevertheless does not stretch out end cover 22's terminal surface with the end cover contact, and the end cover supports in hobbing cutter case 21, and hobbing cutter case 21 is single-edged tool case or multiple-edged tool case. The hob 2 adopts an end cover type supporting structure in the hob box body 1, so that the width space occupied by the hob is greatly reduced, more hobs can be arranged, and the rock breaking capacity is improved; meanwhile, after the hob boxes with the number of the hobs are selected according to the construction strength, the pipe pushing jack can have very high rock breaking capacity, and the specifications of the hobs cannot be reduced due to the increase of the number of the hobs.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a long distance rock pipe pushing jack, includes casing, blade disc bracket, the broken storehouse of rock, camera, blade disc actuating system, hydraulic pressure valves, built-in hydraulic pressure station, muddy water valves, deviation correcting device, control system and measurement system, the casing includes the aircraft nose shell and the supplementary shell that set up around, be provided with hobbing cutter and scraper on the blade disc, a serial communication port, the hobbing cutter passes through the cutter case postposition on the blade disc, the blade disc bracket sets up in the broken storehouse of rock, be provided with the broken strip of cone section of thick bamboo in the broken storehouse of rock, the broken strip of cone section of thick bamboo encircles and sets up the outside at the blade disc bracket, the inside of aircraft nose shell is provided with slewing bearing transmission system and leading circulation system, slewing bearing transmission system includes hollow transmission shaft, the hollow part of transmission shaft is the broken storehouse manhole passageway of blade disc, the broken storehouse manhole passageway of blade disc communicates with the broken storehouse of rock, the front end and the rear end of the transmission shaft are respectively provided with a front bin door and a rear bin door, the front muddy water circulating system comprises a water supply pipe and a water jacket arranged close to the rear side of the conical barrel crushing strip, and a flushing nozzle is arranged on the wall of the water jacket.

2. The long reach rock push bench of claim 1, wherein said cutter head bracket is provided in a plurality of circular arrays, and both ends of said cutter head bracket are connected to the cutter head and the slewing bearing transmission system, respectively.

3. The long reach rock push bench of claim 2 wherein the water jacket is of annular configuration and includes a tapered surface for supporting the cone breaker bar.

4. The long distance rock pipe jacking machine according to claim 3, wherein the center of said hob is provided with a main shaft, the two ends of said hob are provided with end covers, said main shaft contacts with the end covers but does not extend out of the end faces of the end covers, said end covers are supported in the hob box, and said hob box is a single-edged tool box or a multi-edged tool box.