CN220118791U - Propelling device of push bench - Google Patents

Abstract

The utility model relates to a pushing device of a push bench, which is provided with a base. Two upright posts are symmetrically arranged on the base along the width direction of the base, and pushing devices capable of pushing along the length direction of the base are arranged on the upper sides of the two upright posts; a top disc is arranged above the base through a pushing device, a mud discharging hole is penetrated and opened at the center of the top disc, and the port orientation of the mud discharging hole is consistent with the length direction of the base; a collecting box is fixed on one side of the top disc, which is close to the upright post, and the bottom of the collecting box is suspended above the base; the through holes on the collecting box are correspondingly communicated with the mud discharging holes; a mud discharging device which can discharge mud accumulated in the collecting box to the outer side of the base is arranged at one side of the bottom of the collecting box along the width direction of the base; and a limiting device for fixing the concrete pipe is further arranged on one side of the top disc, which is far away from the collecting box. The propelling device can work and discharge soil under the condition of no shutdown, so that the construction time is saved, and the construction efficiency is improved.

Description

Propelling device of push bench

Technical Field

The utility model relates to the technical field of push bench, in particular to a pushing device of a push bench.

Background

The pipe jacking method is a construction method of underground excavation adopted when a tunnel or an underground pipeline passes through various obstacles such as railways, roads, rivers or buildings.

During construction, the pipe is pressed into the soil layer by the force-transmitting top iron and the guide rail through the hydraulic jack supported on the rear seat of the foundation pit, and meanwhile, soil on the front surface of the pipe is excavated and transported away. When the first section pipe is completely jacked into the soil layer, the second section pipe is continuously jacked in the rear, so that one section pipe is jacked in, and an interface is made, so that the culvert pipe is built. The force transmission top iron is provided with a notch for passing through the cable.

With the development of social economy and the perfection of supporting infrastructure of urban residents, particularly in urban construction, pipelines of roads and rivers and gas and liquid transmission pipeline projects passing through inside and outside cities are increasingly increased, and the push bench is widely applied.

The equipment mainly used for pipe jacking construction is a pipe jacking machine, and the pipe jacking machine mainly comprises a rotary excavating system, a soil conveying system, a grouting system, measuring equipment, ground hoisting equipment, an electric system and the like, wherein the rotary excavating system comprises a front steel shell, a rear steel shell, a cutting mechanism, a cutting cutterhead, a cutterhead speed reducer, a mud feeding and discharging mechanism, a hydraulic power device, a deviation correcting hydraulic cylinder, a waterproof ring, a cutting tool bit, a cutterhead rotating shaft, an electric system, an automatic control system, an auxiliary device and the like. Its steel shell bears outside earth pressure and water pressure, protects the safety of internal equipment and operating personnel, and electrical system is regulation and control unit and the electrical cable of connection, and push bench is at the during operation, tunnelling to the depths through rotatory excavator head to in carrying the earth of rotatory excavator head tunnelling output to the dolly of inside setting through the conveyer, can transport earth discharge along the outside port removal of concrete pipe through the dolly.

Referring to the chinese patent with publication number CN208966342U, it discloses a pushing device of push bench, the device is through the use of cooperation hard rubber piece, can protect device and concrete pipe contact position, the thrust that makes the device tail end produce can be better through the conduction of concrete pipe to push bench front end, guarantee push bench atress is even, can produce earth in concrete push bench construction process, the earth of production will be discharged from concrete pipe's outer port, above-mentioned patent is through the backward shrink of top hydraulic propulsion jar, make the inside outside earth that transports of concrete pipe can be hung out through the hydraulic propulsion jar position of top open and shut state, because when hanging earth at every time, all need to shrink the hydraulic propulsion jar at top backward, it is comparatively time consuming and laborious.

Disclosure of Invention

The utility model aims to provide a push device of a push bench, which is used for discharging mud without stopping and avoiding repeated bending of a pipeline.

In order to achieve the above purpose, the present utility model provides the following technical solutions.

The pushing device of the push bench is provided with a base, two stand columns are symmetrically arranged on the base along the width direction of the base, and pushing devices capable of pushing along the length direction of the base are arranged on the upper sides of the two stand columns; a top disc is arranged above the base through a pushing device, a mud discharging hole is penetrated and opened at the center of the top disc, and the port orientation of the mud discharging hole is consistent with the length direction of the base; a collecting box is fixed on one side of the top disc, which is close to the upright post, and the bottom of the collecting box is suspended above the base; the through holes on the collecting box are correspondingly communicated with the mud discharging holes; a mud discharging device which can discharge mud accumulated in the collecting box to the outer side of the base is arranged at one side of the bottom of the collecting box along the width direction of the base; and a limiting device for fixing the concrete pipe is further arranged on one side of the top disc, which is far away from the collecting box.

Therefore, the pushing device pushes the concrete pipe to squeeze into the soil of the inner wall of the pit, the tail end of the concrete pipe is limited and clamped through the limiting device, the situation that the concrete pipe is out of the side is avoided, the situation that the tail end of the concrete pipe is unevenly stressed and damaged is avoided, the mud discharging holes and the through holes are aligned, the soil can be conveniently poured into the collecting box from the tail end of the concrete pipe through the mud discharging holes and the through holes to be collected, meanwhile, the soil in the collecting box serving as the waste soil can be discharged to the transferring groove in the outer side of the base through the mud discharging device, the waste soil in the transferring groove is pumped to the ground through the mud pump, a pipeline moving along with the top disc is not required to be arranged, and the pushing device can work and discharge the soil under the condition of not stopping, so that the construction time is saved, and the construction efficiency is improved. The upright post can provide effective support for the hydraulic cylinder and the top plate; if the upright post is not arranged, the end part of the hydraulic cylinder is fixed with the support rear seat, and the hydraulic cylinder is easy to flexibly deform.

Further, the pushing device comprises a mounting frame fixedly mounted at the tops of the two upright posts and two hydraulic cylinders A symmetrically mounted on one side, far away from the collecting box, of the mounting frame along the width direction of the base; the telescopic rods of the two hydraulic cylinders A penetrate through the other side of the mounting frame and are correspondingly fixed on the surfaces of the top disc, which are positioned on two sides of the mud discharging hole; the base is vertically fixed with a support back seat, and the tail ends of the two hydraulic cylinders A are fixed on the support back seat.

The hydraulic cylinder A works, the telescopic rods extend, the telescopic rods on two sides are connected to two sides of the top disc, the top disc can be pushed to move upwards along the length direction of the base, and therefore a stable extrusion effect can be provided for the tail end of the concrete pipe, and the pipe jacking machine is pushed to carry out tunneling work through the concrete pipe.

Further, the sludge discharge device comprises a sludge discharge pipe arranged at the bottom of the collection box, a rotary auger arranged in the sludge discharge pipe and a driving motor arranged at the end part of the sludge discharge pipe; the output shaft of the driving motor is fixedly connected with the end part of the auger; the mud discharging pipe penetrates through and extends to the inside of the collecting box; the part of the sludge discharge pipe, which is positioned in the collecting box, is provided with a sludge inlet with an upward port; a mud discharging opening is arranged on the mud discharging pipe close to the driving motor.

The soil is poured into the collecting box from the tail end of the concrete pipe through the sludge discharge hole and the through hole, the auger is driven to rotate through the work of the driving motor, the soil in the collecting box can fall into the sludge discharge pipe from the sludge inlet and is rotationally conveyed through the auger Long Luoxuan, the soil can be discharged to one side of the base from the sludge discharge hole, and the effect of discharging the soil while working is achieved.

Further, a mounting plate is arranged in the middle of the inside of the mud hole along the width direction of the base, two ends of the mounting plate are respectively connected to the inner wall of the mud hole, an inner cavity is formed in the mounting plate, two ends of the mounting plate extend to the inside of the top plate, and two penetrating grooves which are respectively communicated with the inner cavity are symmetrically formed in the upper side and the lower side of the mud hole, which are located on one side of the top plate away from the collecting box, of the mud hole; the limiting device comprises a bidirectional threaded rod rotatably arranged in the inner cavity, moving blocks correspondingly and slidably arranged in the two through grooves, and arc-shaped limiting plates symmetrically arranged at the outer ends of the two moving blocks; the two moving blocks extend into the inner cavity and are correspondingly sleeved at the two ends of the bidirectional threaded rod through threads.

The tail end of the concrete pipe is placed between the two groups of arc limiting plates and is abutted to the top plate, the two groups of moving blocks can be driven by synchronous engagement and are driven to be close to each other by screwing the bidirectional threaded rod, so that the tail end of the concrete pipe can be firmly clamped by the two groups of arc limiting plates, the limiting effect is achieved, the situation that the concrete pipe is outside the side in the pressed process is avoided, meanwhile, the central shaft of the concrete tail end is kept consistent with the central shaft of the top plate due to the fact that the moving path of the two groups of moving blocks is identical in the screwing process of screwing the bidirectional threaded rod, and the damage caused by uneven stress of the tail end of the concrete pipe is avoided.

Further, the upper end of the bidirectional threaded rod penetrates through and extends to the upper portion of the top disc, and a screwing wheel is installed at the upper end of the bidirectional threaded rod.

The twisting wheel is held, so that the two-way threaded rod can be twisted by applying force conveniently, and the positions of the two groups of arc limiting plates can be adjusted conveniently.

Further, four hydraulic cylinders B are arranged below the cuboid-shaped base close to the four top corners, and telescopic ends of the four hydraulic cylinders B are fixedly connected to the lower surface of the base respectively.

The base can be driven to integrally lift to a proper height for construction by carrying out corresponding telescopic work on the base, so that the actual use requirement is met.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of a part of the structure of the collecting box according to the present utility model;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged schematic view of the structure at C in FIG. 3;

fig. 5 is a B-B cross-sectional view of fig. 2 in accordance with the present utility model.

In the figure: 1. a base; 2. a column; 3. a mounting frame; 4. a hydraulic cylinder A; 401. a telescopic rod; 5. a top plate; 501. a mud hole; 6. a collection box; 601. a through hole; 7. a mounting plate; 701. an inner cavity; 702. a through groove; 8. a two-way threaded rod; 801. a moving block; 802. an arc limiting plate; 803. twisting wheels; 9. a mud pipe; 901. an auger; 902. a driving motor; 903. a mud inlet; 904. a mud discharging port; 10. a hydraulic cylinder B; 11. and supporting the rear seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The 01 direction in the figure is the length direction of the device and the parts thereof, the 02 direction in the figure is the width direction of the device and the parts thereof, and the 03 direction in the figure is the height direction of the device and the parts thereof.

As shown in fig. 1-5, a pushing device of a push bench is provided with a base 1, wherein two upright posts 2 are symmetrically arranged on the base 1 along the width direction of the base 1, and pushing devices capable of pushing along the length direction of the base 1 are arranged on the upper sides of the two upright posts 2; a top disc 5 is arranged above the base 1 through a propulsion device, a mud discharging hole 501 is formed in the center of the top disc 5 in a penetrating manner, and the port orientation of the mud discharging hole 501 is consistent with the length direction of the base 1; a collecting box 6 is fixed on one side of the top disc 5 close to the upright post 2, and the bottom of the collecting box 6 is suspended above the base 1; the through hole 601 on the collecting box 6 is correspondingly communicated with the mud hole 501; a mud discharging device which can discharge mud accumulated in the collecting box 6 to the outer side of the base 1 is arranged at one side of the bottom of the collecting box 6 along the width direction of the base 1; the side of the top disk 5 away from the collecting box 6 is also provided with a limiting device for fixing the concrete pipe.

This device promotes the concrete pipe through pushing the device and extrudes into in the earth of hole inner wall, through stop device with the spacing centre gripping of tail end of concrete pipe, avoid mixing the outer condition of side in concrete pipe, avoid the uneven condition that damages takes place in tail end atress of concrete pipe, with the setting of arranging mud hole 501 and through-hole 601 alignment, be convenient for pour earth through arranging mud hole 501 and through-hole 601 from concrete pipe tail end into collection box 6 inside collect, can arrange the earth in the collection box 6 to the outside of base 1 through arranging the mud device simultaneously, make the device can be in the condition of not stopping the earth is arranged to the limit work, thereby the time of construction has been practiced thrift, the efficiency of construction is improved.

Preferably, the pushing device comprises a mounting frame 3 fixedly arranged at the top of the two upright posts 2 and two hydraulic cylinders A4 symmetrically arranged at one side of the mounting frame 3 far away from the collecting box 6 along the width direction of the base 1; the telescopic rods 401 of the two hydraulic cylinders A4 penetrate through the other side of the mounting frame 3 and are correspondingly fixed on the surfaces of the top disc 5, which are positioned on the two sides of the mud hole 501; the base 1 is vertically fixed with a support back 11, and the tail ends of the two hydraulic cylinders A4 are fixed on the support back 11.

By pneumatic cylinder A4 work, telescopic link 401 will extend, and the telescopic link 401 of both sides is connected in the both sides of roof-plate 5, can promote the roof-plate 5 and follow the upward movement of base 1 length direction to can provide stable extrusion effect to the tail end of concrete pipe, and promote push bench through the concrete pipe and carry out the tunneling work.

Preferably, the sludge discharging device comprises a sludge discharging pipe 9 arranged at the bottom of the collecting box 6, a screw 901 rotatably arranged in the sludge discharging pipe 9 and a driving motor 902 arranged at the end part of the sludge discharging pipe 9; the output shaft of the driving motor 902 is fixedly connected with the end part of the auger 901; the mud discharging pipe 9 penetrates and extends to the inside of the collecting box 6; the part of the sludge discharge pipe 9 positioned in the collecting box 6 is provided with a sludge inlet 903 with an upward port; a sludge discharge port 904 is provided in the sludge discharge pipe 9 near the driving motor 902.

The mud is poured into the collection box 6 from the tail end of the concrete pipe through the mud discharging hole 501 and the through hole 601, the auger 901 is driven to rotate through the work of the driving motor 902, the mud in the collection box 6 can fall into the mud discharging pipe 9 through the mud inlet 903, the mud can be spirally conveyed through the auger 901 and can be discharged to one side of the base 1 through the mud discharging hole 904, and the effect of discharging the soil while working is achieved.

Preferably, a mounting plate 7 is mounted in the middle of the interior of the mud hole 501 along the width direction of the base 1, two ends of the mounting plate 7 are respectively connected to the inner wall of the mud hole 501, an inner cavity 701 is formed in the mounting plate 7, two ends of the mounting plate 7 extend to the interior of the top plate 5, and two penetrating grooves 702 which are respectively communicated with the inner cavity 701 are symmetrically formed in the upper side and the lower side of the mud hole 501, which are positioned at one side of the top plate 5 away from the collecting box 6; the limiting device comprises a bidirectional threaded rod 8 rotatably installed in the inner cavity 701, a moving block 801 correspondingly and slidably installed in the two through grooves 702, and an arc limiting plate 802 symmetrically installed at the outer ends of the two moving blocks 801; the two moving blocks 801 extend into the inner cavity 701 and are correspondingly sleeved at two ends of the bidirectional threaded rod 8 through threads.

The tail end of the concrete pipe is placed between the two groups of arc limiting plates 802 and is abutted to the top disc 5, the two groups of moving blocks 801 can be driven by synchronous engagement and the two groups of arc limiting plates 802 are driven to be close to each other by screwing the bidirectional threaded rod 8, so that the tail end of the concrete pipe can be firmly clamped by the two groups of arc limiting plates 802, the limiting effect is achieved, the situation that the concrete pipe is outside the side in the process of being pressed is avoided, meanwhile, the central shaft of the tail end of the concrete is kept consistent with the central shaft of the top disc 5 due to the fact that the moving path of the two groups of moving blocks 801 is identical in the process of screwing the bidirectional threaded rod 8, and damage caused by uneven stress of the tail end of the concrete pipe is avoided.

Preferably, the upper end of the bi-directional threaded rod 8 extends through to above the top plate 5, and the screwing wheel 803 is mounted on the upper end of the bi-directional threaded rod 8.

The bi-directional threaded rod 8 can be easily screwed by applying force by holding the screwing wheel 803, and the positions of the two sets of arc-shaped limiting plates 802 can be easily adjusted.

Preferably, four hydraulic cylinders B10 are arranged below the cuboid-shaped base 1 and close to four vertex angles, and telescopic ends of the four hydraulic cylinders B10 are fixedly connected to the lower surface of the base 1 respectively.

The base 1 can be driven to integrally lift to a proper height for construction by carrying out corresponding telescopic work on the base 1, so that the actual use requirement is met.

The foregoing detailed description of the utility model has been presented in conjunction with a specific embodiment, and it is not intended that the utility model be limited to such detailed description. Several equivalent substitutions or obvious modifications will occur to those skilled in the art to which this utility model pertains without departing from the spirit of the utility model, and the same should be considered to be within the scope of this utility model as defined in the appended claims.

Claims (6)

1. A push device for push bench having a base (1), characterized in that:

two upright posts (2) are symmetrically arranged on the base (1) along the width direction of the base (1), and pushing devices capable of pushing along the length direction of the base (1) are arranged on the upper sides of the two upright posts (2);

a top disc (5) is arranged above the base (1) through the propulsion device, a mud discharging hole (501) is formed in the center of the top disc (5) in a penetrating mode, and the port orientation of the mud discharging hole (501) is consistent with the length direction of the base (1);

a collecting box (6) is fixed on one side of the top disc (5) close to the upright post (2), and the bottom of the collecting box (6) is suspended above the base (1);

the through hole (601) on the collecting box (6) is correspondingly communicated with the mud discharging hole (501);

a mud discharging device capable of discharging mud accumulated in the collecting box (6) to the outer side of the base (1) is arranged at one side of the bottom of the collecting box (6) along the width direction of the base (1);

and a limiting device for fixing the concrete pipe is further arranged on one side, far away from the collecting box (6), of the top disc (5).

2. The pushing device of a push bench according to claim 1, wherein:

the pushing device comprises a mounting frame (3) fixedly mounted at the tops of the two upright posts (2) and two hydraulic cylinders A (4) symmetrically mounted on one side, far away from the collecting box (6), of the mounting frame (3) along the width direction of the base (1);

the telescopic rods (401) of the two hydraulic cylinders A (4) penetrate through the other side of the mounting frame (3) and are correspondingly fixed on the surfaces of the top disc (5) positioned on two sides of the mud discharging hole (501);

the base (1) is vertically fixed with a supporting rear seat (11), and the tail ends of the two hydraulic cylinders A (4) are fixed on the supporting rear seat (11).

3. The pushing device of a push bench according to claim 2, wherein:

the mud discharging device comprises a mud discharging pipe (9) arranged at the bottom of the collecting box (6), a rotary auger (901) arranged in the mud discharging pipe (9) and a driving motor (902) arranged at the end part of the mud discharging pipe (9);

an output shaft of the driving motor (902) is fixedly connected with the end part of the auger (901);

the mud discharging pipe (9) extends to the inside of the collecting box (6) in a penetrating way;

a mud inlet (903) with an upward port is arranged on the part of the mud discharging pipe (9) positioned in the collecting box (6);

a mud discharge port (904) is arranged on the mud discharge pipe (9) close to the driving motor (902).

4. The pushing device of a push bench according to claim 1, wherein:

the mud discharging device is characterized in that a mounting plate (7) is mounted in the middle of the inside of the mud discharging hole (501) along the width direction of the base (1), two ends of the mounting plate (7) are respectively connected to the inner wall of the mud discharging hole (501), an inner cavity (701) is formed in the mounting plate (7), two ends of the mounting plate (7) extend to the inside of the top disc (5), and two penetrating grooves (702) which are respectively communicated with the inner cavity (701) are symmetrically formed in the upper side and the lower side of the mud discharging hole (501) on one side, away from the collecting box (6), of the top disc (5);

the limiting device comprises a bidirectional threaded rod (8) rotatably installed in the inner cavity (701), a moving block (801) correspondingly and slidably installed in the two through grooves (702), and arc limiting plates (802) symmetrically installed at the outer ends of the two moving blocks (801);

the two moving blocks (801) extend into the inner cavity (701) and are correspondingly sleeved at two ends of the bidirectional threaded rod (8) through threads.

5. The pushing device of a push bench according to claim 4, wherein:

the upper end of the bidirectional threaded rod (8) penetrates through and extends to the upper portion of the top disc (5), and a screwing wheel (803) is mounted at the upper end portion of the bidirectional threaded rod (8).

6. The pushing device of a push bench according to claim 1, wherein: four hydraulic cylinders B (10) are arranged below the base (1) in a cuboid shape and close to four vertex angles, and the telescopic ends of the four hydraulic cylinders B (10) are fixedly connected to the lower surface of the base (1) respectively.