CN214944261U - Combined cutter head system of rectangular pipe jacking machine - Google Patents

Abstract

The utility model discloses a combination formula blade disc system of rectangle pipe push bench relates to pipe push bench technical field, and its technical scheme main points are: including the shield body and locate the modular excavation system of multiple-cutter head on the shield body, still including setting up the supplementary excavation system on the shield body, supplementary excavation system includes that a plurality of locates the blind area excavation mechanism on the shield body avris, each blind area excavation mechanism locates each blind area position that the modular excavation system of multiple-cutter head is located on the shield body avris respectively in proper order, just blind area excavation mechanism locates the rear side of the modular excavation system of multiple-cutter head. The utility model discloses can excavate the marginal blind area, realize 100% excavation rate, not only be applicable to the weak soil stratum and more be applicable to compound stratum, improve the suitability to guarantee the propulsion of pipe pushing jack, have the effect that improves its construction stability and efficiency of construction.

Description

Combined cutter head system of rectangular pipe jacking machine

Technical Field

The utility model relates to a push bench technical field, more specifically say, it relates to a combination formula blade disc system of rectangle push bench.

Background

The pipe push bench is a highly mechanized and automated excavation and lining complete equipment integrating mechanical, electronic, hydraulic, laser and control technologies by adopting a shield method, and is a large engineering machine which drives a cutter head to rotate by a motor and pushes a hydraulic cylinder to make the cutter head adhere to the wall surface of a rock under the action of a certain pushing pressure, and breaks the rock by a disc cutter arranged on the cutter head to form a tunnel section at one time.

If the granted publication number is CN201351497Y, the publication date is 2009.11.25, the Chinese patent discloses a multi-cutter-disc rectangular push bench, which comprises a shell and a soil bin, wherein a large cutter disc is arranged at the center of the shell and in front of the soil bin, small cutter discs are respectively arranged at four corners of the shell, and the small cutter discs are positioned behind the large cutter disc.

The soil body is cut by the synchronous rotation of the large cutter disc and the four small cutter discs, so that the cutting area of the five cutter discs can reach more than 90% of the rectangular end face of the push bench. But big blade disc and little blade disc are rotatory excavation, and inside blind area can be because of having adhesive force nature fracture and drop, and rectangle push pipe outside edge has the blind area all the time, and the rectangle push pipe can't really do the full section excavation for a long time, can't reach 100% excavation, can only be used in soft soil layer, and at the in-process that the push pipe was progressively excavated, when excavation area increased to the certain extent, the soil layer of edge blind area may hinder push pipe machine shield body further to impel, leads to the unable continuation work of push pipe machine.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a combination formula blade disc system of rectangle push bench can excavate the edge blind area, realizes 100% excavation rate, not only is applicable to the weak soil stratum and more is applicable to compound stratum, improves the suitability to guarantee push bench's propulsion, have the effect that improves its construction stability and efficiency of construction.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a modular blade disc system of rectangle pipe pushing jack, includes the shield body and locates the modular excavation system of multiple-cutter disc on the shield body, still including setting up the supplementary excavation system on the shield body, supplementary excavation system includes that a plurality of locates the blind area excavation mechanism on the shield body avris, each blind area excavation mechanism locates each blind area position that the modular excavation system of multiple-cutter disc is located the shield body avris respectively in proper order, just the rear side of the modular excavation system of multiple-cutter disc is located to blind area excavation mechanism.

Further setting: the blind area excavation mechanism of shield body top and bottom sets up to milling machine to construct, the blind area excavation mechanism of shield body both sides sets up to the cylinder mechanism, just milling machine constructs the cutting axis of rotation and the cutting axis of rotation mutually perpendicular of cylinder mechanism.

Further setting: the shield body is provided with a swing frame, the milling mechanism is installed on the swing frame, and an up-down swing mechanism for driving the swing frame to swing up and down and a left-right swing mechanism for driving the swing frame to swing left and right are arranged between the shield body and the swing frame.

Further setting: the up-and-down swinging mechanism comprises positioning seats fixed on the shield body and up-and-down swinging oil cylinders hinged to the positioning seats, the two positioning seats are symmetrically arranged on the swinging frame, the two up-and-down swinging oil cylinders are arranged in a one-to-one correspondence mode to the two positioning seats, piston rods of the up-and-down swinging oil cylinders are arranged upwards, and two ends of the swinging frame are hinged to piston rods of the two up-and-down swinging oil cylinders respectively so as to drive the swinging frame to swing up and down through the lifting and shrinking of the piston rods and link the up-and-down swinging of the milling mechanism.

Further setting: the left-right swinging mechanism comprises a positioning frame fixed on the swinging frame and a left-right swinging oil cylinder hinged on the positioning frame, a guide channel extending towards the horizontal direction is formed in the swinging frame, a guide block and a fixing block are fixed at one end, far away from a cutting end, of the milling mechanism, the guide block is arranged in the guide channel in a sliding mode, and a piston rod of the left-right swinging oil cylinder extends towards the horizontal direction and is hinged on the fixing block.

Further setting: the milling mechanism comprises a milling head and a power source, the milling head is rotatably arranged on the shield body, the power source drives the milling head to rotate, the roller mechanism comprises a roller rotatably arranged on the side portion of the shield body and a driving piece rotating the driving roller, and a plurality of cutting picks are arranged on the outer wall of the milling head and the outer wall of the roller.

Further setting: a plurality of cutting pick combinations form the pick group on the cylinder, the pick group is including the annular pick group that encircles in the cylinder middle part and two sections spiral picks of symmetry setting in annular pick, the spiral pick is the heliciform setting.

Further setting: the spiral directions of the two sections of spiral cutting picks are opposite.

Further setting: the modular excavation system of multitool dish includes the back blade disc group and the preceding blade disc group that set gradually along shield body direction of advance, preceding blade disc group locates the little preceding blade disc of shield body first half both sides and locates the big preceding blade disc at shield body latter half middle part including the symmetry, back blade disc group is including locating two little back blade discs of shield body first half and locating two big back blade discs of shield body latter half both sides, two between two little preceding blade discs, two are located to little back blade disc big back blade disc symmetry locates big preceding blade disc both sides.

Further setting: the size of the big front cutter head is consistent with that of the big back cutter head, and the size of the small front cutter head is consistent with that of the small back cutter head.

By adopting the technical scheme, the utility model discloses relative prior art compares, has following advantage:

1. the shield body is characterized in that the shield body is provided with a plurality of blind area excavation mechanisms, the positions of all blind areas on the side of the shield body are excavated through the plurality of blind area excavation mechanisms, the edge blind areas can be excavated after a multi-cutter-disc combined type excavation system excavates in a large area, 100% of excavation rate is realized, the shield body is suitable for soft soil strata and composite strata, the applicability is improved, the push bench is guaranteed to be pushed forward, and the effect of improving the construction stability and the construction efficiency is achieved;

2. through the matching of the milling mechanism and the roller mechanism, different excavation forms can be adopted for the blind areas of different parts, so that the blind areas can be excavated more comprehensively, the labor division excavation can be reasonably carried out, and the excavation efficiency is effectively improved;

3. the swing frame is matched with the up-down swing mechanism and the left-right swing mechanism to form swing, so that the milling mechanism can be driven to swing up, down, left and right, the corresponding blind areas can be comprehensively excavated, soil layers can be stirred, and the excavation convenience and the excavation efficiency are improved;

4. through the matching of the arranged annular cutting tooth group and the spiral cutting tooth group, soil can be effectively excavated when the roller rotates, and the soil can quickly fall off by matching with the spiral structure, so that the excavation and advancing stability of the roller mechanism is ensured;

5. through utilizing two little front cutter heads, a big front cutter head, the overall arrangement of two little back cutter heads and two big back cutter heads, each cutter head position of rational distribution, the coverage area when can improve the excavation of multiple cutter head formula combination excavation system, and reduce the blind area size between each cutter head is inside, the soil layer nature fracture that more is favorable to inside blind area drops, thereby after the excavation of outside edge blind area, realize 100% excavation rate, more be favorable to the propulsion of pipe jacking machine, save the artifical supplementary processing procedure around the construction, the effect that has its construction stability of improvement and efficiency of construction.

Drawings

FIG. 1 is a schematic top view of a cutterhead system of a rectangular push bench;

FIG. 2 is a schematic front view of a cutterhead system of a rectangular push bench;

FIG. 3 is a side view schematic of a cutterhead system of a rectangular push bench;

FIG. 4 is a schematic view of a part of the structure of the swing frame, the up-down swing mechanism and the left-right swing mechanism;

fig. 5 is a partial schematic structural view of the swing frame and the horizontal swing mechanism in a plan view.

In the figure: 1. a shield body; 2. a multi-cutter combined excavation system; 21. a rear cutter head group; 211. a small rear cutter head; 212. a large rear cutter head; 22. a front cutter disc set; 221. a small front cutter head; 222. a large front cutter head; 3. an auxiliary excavation system; 31. a blind area excavating mechanism; 32. a milling mechanism; 321. milling a head; 33. a drum mechanism; 331. a drum; 3311. an annular set of cutting teeth; 3312. a spiral cutting pick; 4. a swing frame; 41. a guide channel; 5. an up-down swinging mechanism; 51. positioning seats; 52. an up-down swing oil cylinder; 6. a left-right swinging mechanism; 61. a positioning frame; 62. the oil cylinder swings left and right; 63. a guide block; 64. a fixed block; 7. cutting picks.

Detailed Description

The cutterhead system of a rectangular pipe push bench is further described with reference to fig. 1-5.

The utility model provides a combination formula blade disc system of rectangle push bench, as shown in fig. 1 and fig. 2, including the shield body 1, locate the box-like excavation system 2 of multiple-cutter head on the shield body 1 and locate the supplementary excavation system 3 on the shield body 1, carry out comprehensive excavation through the box-like excavation system 2 of multiple-cutter head, later recycle supplementary excavation system 3 excavates the excavation blind area of box-like excavation system 2 of multiple-cutter head, in order to realize hundred percent excavation, guarantee that rectangle push bench stably excavates, and not only be limited to and excavate the weak soil stratum, be more suitable for compound stratum, the suitability of rectangle push bench has been increased.

As shown in fig. 1 and fig. 2, the multiple cutter disc combined excavation system 2 includes a rear cutter disc group 21 and a front cutter disc group 22 sequentially arranged along the advancing direction of the shield body 1, the front cutter disc group 22 includes small front cutter discs 221 symmetrically arranged at two sides of the upper half portion of the shield body 1 and a large front cutter disc 222 arranged at the middle of the lower half portion of the shield body 1, the rear cutter disc group 21 includes two small rear cutter discs 211 arranged at the upper half portion of the shield body 1 and two large rear cutter discs 212 arranged at two sides of the lower half portion of the shield body 1, and the two small rear cutter discs 211 are arranged between the two small front cutter discs 221 and are staggered with each other; the two large rear cutter heads 212 are symmetrically arranged at two sides of the large front cutter head 222 and are arranged in a staggered manner. Two small front cutter heads 221 and a large front cutter head 222 form a first excavation, and then two small rear cutter heads 211 and two large rear cutter heads 212 form a second excavation to serve as the main excavation work of the excavation face. Wherein, the big size of blade disc 222 is unanimous with big back blade disc 212 before big, and the size of blade disc 221 is unanimous with little back blade disc 211 before little for the blade disc integrated configuration is reasonable, and the blade disc of little specification all is located excavation face first half, and the blade disc of big specification all is located the latter half of excavation face, can make each blade disc form crisscross each other, reduces the blind area at excavation face middle part, and the inside blind area nature fracture drops after the convenient excavation, improves the excavation effect.

As shown in fig. 1 and 2, the auxiliary excavation system 3 includes a plurality of blind area excavation mechanisms 31 disposed on the side of the shield body 1, each blind area excavation mechanism 31 is sequentially disposed at each blind area position of the multiple-cutter combined excavation system 2 on the side of the shield body 1, and the blind area excavation mechanism 31 is disposed at the rear side of the multiple-cutter combined excavation system 2, after large-area excavation is performed by the multiple-cutter combined excavation system 2, the blind area on the side is excavated by using each blind area excavation mechanism 31, after large-area excavation, part of the blind areas inside the multiple-cutter combined excavation system 2 naturally break and fall due to no adhesive force after excavation, and the area of the blind area on the side is smaller, so as to facilitate excavation by the auxiliary excavation system 3, thereby realizing 100% excavation rate of an excavation face, ensuring stable operation of a pipe jacking machine, and being suitable for excavation under various working conditions, has the effect of improving the applicability. The blind area excavating mechanism 31 at the top and the bottom of the shield body 1 is set as a milling mechanism 32, the blind area excavating mechanisms 31 at the two sides of the shield body 1 are set as roller mechanisms 33, and the cutting rotation axis of the milling mechanism 32 is perpendicular to the cutting rotation axis of the roller mechanisms 33, so that the blind areas on the peripheral side of the shield body 1 can be excavated comprehensively.

As shown in fig. 1, 2 and 3, the milling mechanism 32 includes a milling head 321 rotatably disposed on the shield body 1 and a power source for driving the milling head 321 to rotate, the drum mechanism 33 includes a drum 331 rotatably disposed on a side portion of the shield body 1 and a driving member for driving the drum 331 to rotate, and a plurality of cutting picks 7 are disposed on outer walls of the milling head 321 and the drum 331, so as to damage a rock wall for excavation when rotating. Wherein, the power supply all sets up to hydraulic motor and speed reducer cooperation with the driving piece, and hydraulic motor and speed reducer all install inside milling head 321 and inside cylinder 331 to direct access oil pipe can launch hydraulic motor and drive the rotation of milling head 321 or cylinder 331, convenient and fast.

As shown in fig. 2 and 3, further, a plurality of cutting picks 7 on the drum 331 are combined to form a pick group, the pick group includes an annular pick group 3311 surrounding the middle of the drum 331 and two sections of spiral picks 3312 arranged symmetrically to the annular pick, and the spiral picks 3312 are arranged spirally, so that the drum 331 can crush and excavate the ground layer when rotating. Wherein, two sections spiral pick 3312's spiral opposite direction sets up, discharges earth outside cylinder 331 both ends when conveniently excavating, improves convenience and excavation efficiency to the broken excavation of stratum.

As shown in fig. 1 and 4, a swing frame 4 is arranged on the shield body 1, the milling mechanism 32 is installed on the swing frame 4, and an up-down swing mechanism 5 for driving the swing frame 4 to swing up and down and a left-right swing mechanism 6 for driving the swing frame 4 to swing left and right are arranged between the shield body 1 and the swing frame 4, so that the milling head 321 can swing left and right and up and down to comprehensively supplement excavation for a blind area which is responsible for excavation, and the stratum of the blind area can be stirred during excavation, thereby improving the excavation rate and the excavation effect.

As shown in fig. 1 and 4, specifically, the luffing mechanism 5 includes two positioning seats 51 fixed on the shield body 1 and two luffing cylinders 52 hinged to the positioning seats 51, the two positioning seats 51 are provided symmetrically to the swing frame 4, the two luffing cylinders 52 are provided one by one corresponding to the two positioning seats 51, piston rods of the luffing cylinders 52 are arranged upward, and two ends of the swing frame 4 are respectively hinged to piston rods of the two luffing cylinders 52, so that the swing frame 4 is driven to swing up and down by the piston rods of the luffing cylinders 52, and the linkage milling mechanism 32 swings up and down, thereby realizing the luffing of the milling head 321.

As shown in fig. 1, 4 and 5, specifically, the left-right swinging mechanism 6 includes a positioning frame 61 fixed on the swinging frame 4 and a left-right swinging oil cylinder 62 hinged on the positioning frame 61, a guide channel 41 extending towards the horizontal direction is formed on the positioning frame 61, a guide block 63 and a fixed block 64 are fixed at one end of the milling mechanism 32 far away from the cutting end, the guide block 63 is slidably arranged in the guide channel 41, a piston rod of the left-right swinging oil cylinder 62 extends obliquely towards the horizontal direction, and the end part of the piston rod is hinged on the fixed block 64; the milling mechanism 32 is driven to swing left and right by the lifting and shrinking of the piston rod of the left and right swing oil cylinder 62, and the milling mechanism is matched with the sliding of the guide block 63 and the guide channel 41, so that the stability of the left and right swing is improved. Wherein, locating rack 61 sets up to the arc frame, and guide way 41 corresponds and sets up to the arc form to guide way 41 guides the guide block 63 swing, improves horizontal hunting stability.

The working principle is as follows: when the multi-cutter combined excavation system is used, a first excavation is carried out by using the large front cutter 222 and the small front cutter 221, then a second excavation is formed by using the large rear cutter 212 and the small rear cutter 211, so that the multi-cutter combined excavation system 2 is used for carrying out large-area main excavation work, the excavation range is larger, the area of a blind area part between every two inner cutters is smaller, and no adhesive force exists after excavation, so that the multi-cutter combined excavation system can be naturally broken and fall off; then, along with the advancing process of the pipe jacking machine, the dead zone excavation mechanisms 31 of the auxiliary excavation system 3 are used for synchronously carrying out supplementary excavation on the side dead zones left by excavation of the multi-cutter combined excavation system 2, so that the excavation rate of 100% is realized, the manual supplementary processing procedure after the construction period is saved, and the construction efficiency is improved. Through the technical scheme, the utility model discloses can excavate edge blind area, realize 100% excavation rate, not only be applicable to the weak soil stratum and more be applicable to compound stratum, improve the suitability to guarantee the propulsion of pipe pushing jack, have the effect that improves its construction stability and efficiency of construction.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a modular blade disc system of rectangle pipe push bench, includes the shield body (1) and locates the modular excavation system of multitool dish (2) on the shield body (1), its characterized in that still includes supplementary excavation system (3) of setting on the shield body (1), supplementary excavation system (3) include that a plurality of locates blind area excavation mechanism (31) on shield body (1) avris, each blind area excavation mechanism (31) locate the modular excavation system of multitool dish (2) respectively in proper order and lie in each blind area position on shield body (1) avris, just the rear side of the modular excavation system of multitool dish (2) is located in blind area excavation mechanism (31).

2. The cutterhead system of a rectangular pipe push bench according to claim 1, wherein the blind area excavating mechanisms (31) at the top and bottom of the shield body (1) are provided as milling mechanisms (32), the blind area excavating mechanisms (31) at both sides of the shield body (1) are provided as roller mechanisms (33), and the cutting rotation axis of the milling mechanism (32) and the cutting rotation axis of the roller mechanisms (33) are perpendicular to each other.

3. The cutterhead system of a rectangular pipe pushing jack according to claim 2, wherein a swing frame (4) is provided on the shield body (1), the milling mechanism (32) is mounted on the swing frame (4), and an up-down swing mechanism (5) for driving the swing frame (4) to swing up and down and a left-right swing mechanism (6) for driving the swing frame (4) to swing left and right are provided between the shield body (1) and the swing frame (4).

4. The cutterhead system of a rectangular pipe pushing jack according to claim 3, wherein the luffing mechanism (5) includes a positioning seat (51) fixed on the shield body (1) and two luffing cylinders (52) hinged to the positioning seat (51), the positioning seat (51) is provided with two symmetric to the swing frame (4), the two luffing cylinders (52) are provided with two corresponding to the positioning seat (51), piston rods of the luffing cylinders (52) are upward, two ends of the swing frame (4) are hinged to the piston rods of the two luffing cylinders (52) respectively, so as to drive the swing frame (4) to swing up and down through the lifting and shrinking of the piston rods, and the linkage milling mechanism (32) swings up and down.

5. The cutterhead system of a rectangular push bench according to claim 3, wherein the left-right swinging mechanism (6) comprises a positioning frame (61) fixed on the swinging frame (4) and a left-right swinging oil cylinder (62) hinged on the positioning frame (61), a guide channel (41) extending towards the horizontal direction is formed in the swinging frame (4), a guide block (63) and a fixed block (64) are fixed at one end of the milling mechanism (32) far away from the cutting end, the guide block (63) is slidably arranged in the guide channel (41), and a piston rod of the left-right swinging oil cylinder (62) extends towards the horizontal direction and is hinged on the fixed block (64).

6. The cutterhead system of a rectangular pipe pushing jack according to claim 2, wherein the milling mechanism (32) includes a milling head (321) rotatably mounted on the shield body (1) and a power source for driving the milling head (321) to rotate, the drum mechanism (33) includes a drum (331) rotatably mounted on the side of the shield body (1) and a driving member for driving the drum (331) to rotate, and a plurality of cutting picks (7) are mounted on the outer walls of the milling head (321) and the drum (331).

7. The cutterhead system of a rectangular pipe push bench of claim 6, wherein the cutting picks (7) of the drum (331) are combined to form a pick group, the pick group including an annular pick group (3311) surrounding the middle of the drum (331) and two sections of spiral picks (3312) symmetrically disposed about the annular pick, the spiral picks (3312) being disposed in a spiral pattern.

8. The tool head system of a rectangular push bench of claim 7 wherein the helical cutting picks (3312) of the two sections are oppositely directed.

9. The modular cutterhead system of rectangle pipe pushing jack of claim 1, characterized in that, modular excavation system of multiple cutter discs (2) includes back cutterhead group (21) and preceding cutterhead group (22) that set gradually along shield body (1) advancing direction, preceding cutterhead group (22) is including symmetry locate little preceding cutterhead (221) of shield body (1) first half both sides and locate big preceding cutterhead (222) at shield body (1) second half middle part, back cutterhead group (21) is including locating two little back cutterheads (211) of shield body (1) first half and locating two big back cutterheads (212) of shield body (1) second half both sides, two little back cutterhead (211) are located between two little preceding cutterheads (221), two big back cutterhead (212) symmetry is located big preceding cutterhead (222) both sides.

10. The cutterhead system of a rectangular push bench of claim 9, wherein the large front cutterhead (222) is the same size as the large rear cutterhead (212), and the small front cutterhead (221) is the same size as the small rear cutterhead (211).

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