CN214997664U - Cantilever type tunneling machine - Google Patents

Abstract

The utility model provides a cantilever type heading machine, it includes the host computer, is connected with the mounting bracket on the host computer, and the both sides of mounting bracket are connected with a flexible arm respectively, and form between two flexible arms and be greater than 0 and be less than 180 contained angle, and the free end of flexible arm is connected with props boots. The utility model discloses a cantilever type entry driving machine through setting up flexible arm and propping boots, at the excavation in-process, props boots and can shift up to support tight section of thick bamboo wall, has improved the stability of complete machine to provide bigger counter-force for broken rock tool bit, improved broken rock efficiency, be particularly useful for the great hard rock stratum of cantilever type excavator excavation rock hardness.

Description

Cantilever type tunneling machine

Technical Field

The utility model relates to a technical field is equipped in the tunnel construction, in particular to cantilever type entry driving machine.

Background

Along with the development of national hydraulic and hydroelectric engineering, subway tunnel engineering and underground space development engineering, development and manufacturing capabilities of development machines are continuously mature, development equipment puts forward higher and higher requirements on flexible adaptability of tunnel section shapes, the section adapted by traditional shield equipment is single and higher in equipment cost, a cantilever TBM (tunnel boring machine) has the function of excavating in a vertically and horizontally swinging mode, is more suitable for special-shaped sections, is small in size and is more flexible in transition, and is more and more widely applied at present.

In the construction process of the cantilever TBM, the weight of the whole machine is small, the stability is poor, the construction efficiency is slow, particularly in a hard rock stratum, the rock strength is high, the whole machine cannot provide enough supporting reaction force for a cutting head to achieve the effect of extruding and breaking rock, and the work efficiency of the cantilever TBM is slow or even cannot continue to work.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can promote cantilever TBM brokenly the cantilever type entry driving machine of rock efficiency.

In order to achieve the purpose, the utility model provides a cantilever type heading machine, it includes the host computer, be connected with the mounting bracket on the host computer, the both sides of mounting bracket are connected with a flexible arm respectively, and two form between the flexible arm and be greater than 0 and be less than 180 contained angle, the free end of flexible arm is connected with props boots.

The boom-type roadheader as described above, wherein the telescopic boom is connected with at least one limit pull rod, and the limit pull rod is connected with the mounting frame.

The boom-type roadheader as described above, wherein three of said limit rods are connected to said telescopic boom in the circumferential direction.

The boom-type roadheader as described above, wherein the angle of 45 ° is formed between the limit rod located in the middle and the limit rods located on both sides.

The boom-type roadheader as described above, wherein the telescopic boom is connected with an ear plate, and the limit pull rod is connected with the telescopic boom through the ear plate.

The cantilever type heading machine comprises a telescopic arm, a mounting frame, a supporting shoe and a hydraulic cylinder, wherein the telescopic arm is a hydraulic cylinder, the mounting frame is connected with a cylinder barrel of the hydraulic cylinder, and the supporting shoe is connected with a piston rod of the hydraulic cylinder.

The cantilever type heading machine comprises a telescopic arm, a mounting frame, a supporting shoe and a piston rod, wherein the telescopic arm is an air cylinder, the mounting frame is connected with a cylinder barrel of the air cylinder, and the supporting shoe is connected with the piston rod of the air cylinder.

The cantilever type heading machine comprises a transverse plate and two vertical plates, wherein the two vertical plates are connected to two ends of the transverse plate and located on the same side of the transverse plate, the mounting frame is sleeved outside the main machine, and the two telescopic arms are respectively connected with the two vertical plates.

The boom-type roadheader as described above, wherein the vertical plate is connected with a fixing lug, and the telescopic arm is connected with the fixing lug.

A boom miner as described above wherein said shoes are attached to said telescopic boom by ball joints.

Compared with the prior art, the utility model has the advantages as follows:

the cantilever type excavator of the utility model is provided with the telescopic arm and the supporting shoes, and the supporting shoes can move up to tightly support the cylinder wall in the excavating process, thereby improving the stability of the whole excavator, providing larger supporting counter force for the rock breaking tool bit, improving the rock breaking efficiency, and being particularly suitable for excavating hard rock stratum with larger rock hardness by the cantilever type excavator;

the utility model discloses a cantilever type entry driving machine, through setting up limit pull rod, the effectual excavation operation of having guaranteed, flexible arm can not relative mounting bracket remove to make and prop the boots and can keep the state of supporting tight hole wall constantly.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

fig. 1 is a schematic structural view of the boom-type roadheader of the present invention;

figure 2 is a schematic side view of the boom of figure 1;

FIG. 3 is a schematic view of a tool tip;

FIG. 4 is a schematic view of the assembled structure of the mounting bracket, telescopic arm and shoe;

FIG. 5 is a side view schematic of the structure of FIG. 4;

FIG. 6 is an enlarged partial schematic view of FIG. 4;

fig. 7 is a schematic view of an assembled structure of the telescopic arm and the shoe.

The reference numbers illustrate:

100. a host; 110. a rock breaking cutter head;

200. a mounting frame; 210. a transverse plate; 220. a vertical plate; 230. fixing the ear;

300. a telescopic arm; 310. a cylinder barrel; 320. a piston rod; 321. spherical hinge;

400. supporting the boot;

500. a limiting pull rod; 510. an ear plate.

Detailed Description

In order to clearly understand the technical solution, purpose and effect of the present invention, the detailed embodiments of the present invention will be described with reference to the accompanying drawings. Where adjective or adverbial modifiers "upper" and "lower", "left" and "right" are used merely to facilitate relative reference between groups of terms, and do not describe any particular directional limitation on the modified terms. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of such features.

As shown in fig. 1 and 2, the present invention provides a boom-type heading machine, which comprises a main machine 100, the main machine 100 comprises a detachable rock-breaking cutter head 110, the rock-breaking cutter head 110 can be a hard rock cutter head or a soft rock cutter head (as shown in fig. 3), the specific structure of the main machine 100 is the prior art, and no further description is given here, the specific design can refer to the boom-type heading machine (CTR450 high prototype) disclosed in the chinese external patent with the publication number CN305802244S, so that the main machine 100 of the present invention has a self-weight increase of 3-5 times, a rock-breaking capacity is stronger, the self-weight can provide enough friction force for the track, so as to ensure the stability in operation, the main machine 100 is connected with a mounting frame 200, two sides of the mounting frame 200 are respectively connected with a telescopic arm 300, and an included angle greater than 0 ° and less than 180 ° is formed between the two telescopic arms 300, that the two telescopic arms 300 are respectively inclined towards two sides and are substantially V-shaped relative to the mounting frame 200, the free end of the telescopic arm 300 is connected with the supporting shoe 400, the supporting shoe 400 can tightly support the wall of the hole under the action of the telescopic arm 300, specifically, in the process of advancing or retreating the whole machine, the telescopic arm 300 contracts to drive the supporting shoe 400 to move downwards, so that the supporting shoe 400 does not interfere with the wall of the hole, in the excavation process, the telescopic arm 300 extends out to drive the supporting shoe 400 to move upwards to tightly support the wall of the tube, so as to prevent vibration, and the purposes of increasing the stability of the whole machine and increasing the counter force of the rock breaking tool bit 110 are achieved.

The utility model discloses a cantilever type entry driving machine, through setting up flexible arm 300 and connect on flexible arm 300 and prop boots 400, at the excavation in-process, prop boots 400 and can move up to the tight section of thick bamboo wall, improved the stability of complete machine to provide bigger counter-force for broken rock tool bit 110, improved broken rock efficiency, be particularly useful for cantilever type excavator excavation rock hardness great hard rock stratum.

Further, as shown in fig. 4 and 5, the mounting bracket 200 includes a transverse plate 210 and two vertical plates 220, the two vertical plates 220 are connected to both ends of the transverse plate 210 and located on the same side of the transverse plate 210, that is, the mounting bracket 200 is an inverted U-shaped structure, the mounting bracket 200 is sleeved outside the host computer 100, specifically, the walking track of the host computer 100 is externally wrapped by a metal box structure, so as to protect the track, the lower ends of the two vertical plates 220 are respectively connected with the metal box of the host computer 100 through bolts, and the two telescopic arms 300 are respectively connected with the two vertical plates 220.

Further, as shown in fig. 6, the vertical plate 220 is connected with a fixing lug 230, the fixing lug 230 is welded to the vertical plate 220, and the fixing end of the telescopic arm 300 is connected with the fixing lug 230 through a bolt, so that the connection between the telescopic arm 300 and the vertical plate 220 is simple and convenient.

Of course, the fixed end of the telescopic arm 300 may be directly welded to the vertical plate 220.

Further, as shown in fig. 7, the supporting shoe 400 is connected to the telescopic arm 300 through a ball hinge 321, specifically, the ball hinge 321 is connected to the telescopic end of the telescopic arm 300, and the supporting shoe 400 is connected to the ball hinge 321, so that the supporting shoe 400 can rotate relative to the telescopic arm 300, and thus the angle can be changed along with the change of the hole wall, and the state of tightly supporting the hole wall can be maintained all the time.

Further, as shown in fig. 4, 5 and 6, at least one limit pull rod 500 is connected to the telescopic arm 300, the limit pull rod 500 is connected to the mounting frame 200, and the telescopic arm 300 is limited by the limit pull rod 500 to move relative to the mounting frame 200, so that the relative position between the telescopic arm 300 and the mounting frame 200 is more stable, and the supporting shoe 400 can constantly keep a state of tightly supporting the tunnel wall in the excavation operation.

Still further, the telescopic arm 300 is connected with an ear plate 510, the ear plate 510 is welded to the fixed end of the telescopic arm 300, and the limit pull rod 500 is connected with the telescopic arm 300 through the ear plate 510, so that the connection between the limit pull rod 500 and the telescopic arm 300 is simple and convenient.

Of course, the telescopic arm 300 may be directly welded to the fixed end of the telescopic arm 300.

Still further, as shown in fig. 1, three limit rods 500 are connected to the telescopic arm 300 along the circumferential direction, so that the telescopic arm 300 can be stably connected to the mounting frame 200.

Still further, 45 included angles are formed between the middle limiting pull rod 500 and the limiting pull rods 500 on two sides respectively, specifically, the middle limiting pull rod 500 is set as a first limiting pull rod 500, the leftmost limiting pull rod 500 is set as a second limiting pull rod 500, the rightmost limiting pull rod 500 is set as a third limiting pull rod 500, a 45 included angle is formed between the first limiting pull rod 500 and the second limiting pull rod 500, and a 45 included angle is formed between the first limiting pull rod 500 and the third limiting pull rod 500.

Further, the telescopic arm 300 is a hydraulic cylinder, the mounting frame 200 is connected with a cylinder 310 of the hydraulic cylinder, the supporting shoe 400 is connected with a piston rod 320 of the hydraulic cylinder, and the hydraulic cylinder can provide a large supporting counterforce, so that the supporting shoe 400 firmly abuts against the hole wall.

Or, the telescopic arm 300 is an air cylinder, the mounting frame 200 is connected with a cylinder barrel of the air cylinder, the supporting shoe 400 is connected with a piston rod of the air cylinder, and the air cylinder can also provide a supporting reaction force, so that the supporting shoe 400 firmly supports against a hole wall.

To sum up, the cantilever type excavator of the utility model has the advantages that by arranging the telescopic arm and the supporting shoes, the supporting shoes can move up to tightly support the cylinder wall in the excavating process, so that the stability of the whole excavator is improved, a larger supporting counter force is provided for the rock breaking tool bit, the rock breaking efficiency is improved, and the cantilever type excavator is particularly suitable for excavating hard rock strata with larger rock hardness;

the utility model discloses a cantilever type entry driving machine, through setting up limit pull rod, the effectual excavation operation of having guaranteed, flexible arm can not relative mounting bracket remove to make and prop the boots and can keep the state of supporting tight hole wall constantly.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention. Moreover, it should be noted that the components of the present invention are not limited to the above-mentioned integral application, and various technical features described in the present invention can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention of the present invention.

Claims (10)

1. The utility model provides a boom-type heading machine, its characterized in that, boom-type heading machine includes the host computer, be connected with the mounting bracket on the host computer, the both sides of mounting bracket are connected with a flexible arm respectively, and two form between the flexible arm and be greater than 0 and be less than 180 the contained angle, the free end of flexible arm is connected with props the boots.

2. A boom miner according to claim 1,

the telescopic boom is connected with at least one limiting pull rod, and the limiting pull rod is connected with the mounting rack.

3. A boom miner according to claim 2,

three limiting pull rods are connected to the telescopic arm along the circumferential direction.

4. A boom miner according to claim 3,

and 45-degree included angles are formed between the middle limiting pull rod and the two side limiting pull rods respectively.

5. A boom miner according to claim 2,

the telescopic boom is connected with an ear plate, and the limiting pull rod is connected with the telescopic boom through the ear plate.

6. A boom miner according to claim 1,

the telescopic boom is a hydraulic cylinder, the mounting frame is connected with a cylinder barrel of the hydraulic cylinder, and the supporting shoe is connected with a piston rod of the hydraulic cylinder.

7. A boom miner according to claim 1,

the telescopic arm is an air cylinder, the mounting frame is connected with a cylinder barrel of the air cylinder, and the supporting shoe is connected with a piston rod of the air cylinder.

8. A boom miner according to claim 1,

the mounting bracket includes diaphragm and two risers, two the riser connect in the both ends of diaphragm are located same one side of diaphragm, the mounting bracket cup joint in the outside of host computer, two flexible arm respectively with two the riser meets.

9. A boom miner according to claim 8,

the riser is connected with fixed ear, flexible arm with fixed ear connects mutually.

10. A boom miner according to any one of claims 1-9,

the supporting boots are connected with the telescopic arms through spherical hinges.

Images