A soil conveying device of an earth pressure balance type shield machine

Abstract

The application discloses a soil conveying device of a soil pressure shield tunneling machine, which comprises a screw conveyor connected with a soil bin of the soil pressure shield tunneling machine, an outlet of the screw conveyor is connected with a foam filling machine, the foam filling machine is connected with a belt conveyor, and an outlet end of the belt conveyor is connected with a soil bucket for external transportation. The soil conveying device of the soil pressure shield tunneling machine is provided with the foam filling machine, can perform foam filling operation on the soil output by the screw conveyor, successfully improves the effect of the soil output by the screw conveyor through the foam, makes the soil have good fluidity, plasticity and waterproof permeability, realizes continuous and efficient transportation of the soil, has high automation degree, and effectively solves the problems of long construction period and great safety hidden danger of the existing soil discharging mode of the shield tunnel.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of earth pressure shield machine accessories, and particularly relates to a muck conveying device of an earth pressure shield machine. BACKGROUND

[0002] In tunnel construction, shield machine technology is being widely applied due to its fast construction progress and good safety, etc. When the earth pressure balance shield machine is tunneling, a spiral conveyor and a conveyor belt mode are often used to convey muck, but the muck is easy to be blown and scattered, causing pollution. Therefore, a muck conveying device of an earth pressure shield machine needs to be designed. SUMMARY

[0003] In order to overcome the defects in the prior art, a muck conveying device of an earth pressure shield machine is provided.

[0004] The present application is realized by the following scheme:

[0005] A muck conveying device of an earth pressure shield machine, which comprises a spiral conveyor connected with a soil bin of the earth pressure shield machine, an outlet of the spiral conveyor is connected with a foam filling machine, the foam filling machine is connected with a belt conveyor, and an outlet end of the belt conveyor is connected with a muck hopper for external transportation.

[0006] The foam filling machine comprises a foam filling machine conveying belt in communication with the outlet of the spiral conveyor, an outlet of the foam filling machine conveying belt is connected with an inlet of the belt conveyor, a water distributor is arranged above the advancing direction of the foam filling machine conveying belt, a plurality of water distribution holes are arranged at the lower end of the water distributor, a water outlet pipe is arranged at the upper end of the water distributor, and the lower end of the water outlet pipe is in communication with a water storage tank; a first foam filler and a second filler are also arranged in the advancing direction of the foam filling machine conveying belt.

[0007] The belt conveyor comprises a connecting belt unit in communication with the outlet of the foam filling machine conveying belt, the connecting belt unit is connected with a lifting belt unit, the lifting belt unit is connected with a conveying belt unit, and the outlet of the conveying belt unit is connected with the muck hopper for external transportation.

[0008] A water storage tank pump is arranged on the water storage tank and in communication with the water outlet pipe.

[0009] Water distributor connecting shafts are arranged at both ends of the water distributor, the water distributor connecting shafts are connected with water distributor sliding blocks, and the water distributor sliding blocks are driven by a water distributor motor to slide on a water distributor sliding rail.

[0010] The included angle between the water distributor sliding rail and the horizontal plane is 30°-60°.

[0011] The water distributor, the first foam filler and the second filler are arranged in sequence along the advancing direction of the foam filling machine conveying belt, and a foam filling machine detector is arranged at the end of the foam filling machine conveying belt.

[0012] The first foam filler is in communication with the first foam generator, and the second filler is in communication with the second foam generator.

[0013] The two ends of the second foam generator are connected with the output shaft of the second foam generator connecting shaft and the second foam generator rotating motor.

[0014] The connecting belt unit comprises a connecting belt frame, a belt conveying sensor is arranged on the connecting belt frame, a connecting belt motor is arranged below the connecting belt frame, the connecting belt motor drives a connecting belt main drive shaft, the connecting belt main drive shaft is connected with a pair of connecting belt main pulleys, the connecting belt main pulleys drive a connecting belt slave drive shaft through connecting belt chains, a connecting belt conveying main pulley is arranged on the inner side of the connecting belt main drive shaft, a connecting belt conveying slave pulley is arranged on the inner side of the slave drive shaft, and a connecting belt body is arranged on the connecting belt conveying main pulley and the connecting belt conveying slave pulley.

[0015] The connecting belt main pulleys are symmetrically arranged at the two ends of the connecting belt main drive shaft, the two connecting belt main pulleys are respectively connected with the two connecting belt chains, a pair of connecting belt slave pulleys are arranged at the two ends of the connecting belt slave drive shaft, the pair of connecting belt slave pulleys are respectively driven by the connecting belt chains, the connecting belt conveying main pulleys are two pulleys arranged on the inner side of the two connecting belt main pulleys of the connecting belt main drive shaft, and the connecting belt conveying slave pulleys are two pulleys arranged on the inner side of the two connecting belt slave pulleys of the slave drive shaft.

[0016] The lifting belt unit comprises a lifting belt frame, a first lifting belt main drive shaft and a second lifting belt main drive shaft are arranged at one end of the lifting belt frame, and the first lifting belt main drive shaft and the second lifting belt main drive shaft are respectively driven by a first lifting belt motor and a second lifting belt motor.

[0017] A first lifting belt slave drive shaft and a second lifting belt slave drive shaft are arranged at the other end of the lifting belt frame, and the horizontal positions of the first lifting belt main drive shaft and the second lifting belt main drive shaft are higher than those of the first lifting belt slave drive shaft and the second lifting belt slave drive shaft.

[0018] The first lifting belt main transmission shaft and the second lifting belt main transmission shaft drive the first lifting belt slave transmission shaft and the second lifting belt slave transmission shaft through the first lifting belt chain and the second lifting belt chain respectively.

[0019] First lifting belt main sprocket and second lifting belt main sprocket are arranged on the inner side of the first lifting belt main transmission shaft and the second lifting belt main transmission shaft respectively, and first lifting belt slave sprocket and second lifting belt slave sprocket are arranged on the inner side of the first lifting belt slave transmission shaft and the second lifting belt slave transmission shaft respectively.

[0020] The height of the first lifting belt main sprocket and the second lifting belt main sprocket is higher than that of the first lifting belt slave sprocket and the second lifting belt slave sprocket.

[0021] The axis of the first lifting belt main transmission shaft and the second lifting belt main transmission shaft is located in the same straight line.

[0022] The first lifting belt main sprocket and the second lifting belt main sprocket are respectively two symmetrically arranged.

[0023] The beneficial effects of the present application are:

[0024] 1. The soil conveying device of the earth pressure shield tunneling machine is provided with a foam filling machine, which can perform foam filling operation on the soil output by the screw conveyor, successfully improves the effect of the soil output by the screw conveyor through foam, and makes the soil have good fluidity, plasticity and waterproof permeability.

[0025] 2. The foam filling machine of the soil conveying device of the earth pressure shield tunneling machine is convenient to install and use, has high reliability, can reduce equipment cost, and is conducive to large-scale industrial application.

[0026] 3. The foam filling machine of the soil conveying device of the earth pressure shield tunneling machine adds a small amount of water through the water distributor, so that the water content of the soil is increased, which provides favorable conditions for subsequent foam filling, the passing soil is improved twice through the first foam generator and the second foam generator, the soil improvement effect is effectively improved, the parameters of the soil at the outlet of the foam filling machine are detected through the foam filling machine detector, and the filling amount of the water distributor, the first foam generator and the second foam generator is adjusted in time, so that the soil in the subsequent process of the present application is in good condition.

[0027] 4. The belt conveyor of the soil conveying device of the earth pressure shield tunneling machine solves the technical problems of discontinuous soil discharge in current tunnel mining and the inability of traditional belt conveyors to meet the needs due to the limitation of urban implementation space, can realize continuous conveying of the soil from the tunnel to the ground unloading point, ensure the conveying of the soil between the conveying belts, greatly reduce the influence of soil scattering on the on-site operation environment, and realize energy saving and environmental protection.

[0028] 5. The connecting belt unit of the soil conveying device of the earth pressure shield tunneling machine is communicated with the outlet of the foam filling machine, can be used in the small section tunnel, transmits the muck after filling the foam to the belt conveyor, and has the advantages of safe and reliable, high transportation efficiency.

[0029] 6. The soil conveying device of the earth pressure shield tunneling machine utilizes the lifting belt unit to lift the muck to a certain height, then is transported to the muck bucket from the slowly descending conveying belt unit, realizes the continuous and efficient transportation of the muck, has high automation degree, effectively solves the technical problems of long construction period, great safety hidden danger, unable to be used in the small section tunnel and unable to be used before the maintenance structure of the starting well is completed. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a module block diagram of the soil conveying device of the earth pressure shield tunneling machine;

[0031] Figure 2 It is a structure detail view of the foam filling machine of the soil conveying device of the earth pressure shield tunneling machine;

[0032] Figure 3 It is a structure detail view of the belt conveyor of the soil conveying device of the earth pressure shield tunneling machine;

[0033] Figure 4 It is a structure detail view of the connecting belt unit of the soil conveying device of the earth pressure shield tunneling machine;

[0034] Figure 5 It is a structure detail view of the lifting belt unit of the soil conveying device of the earth pressure shield tunneling machine;

[0035] In the figure: 1 is the foam filling machine conveying belt, 2 is the water distributor, 3 is the water outlet pipe, 4 is the water storage tank, 5 is the water storage tank water pump, 6 is the water distributor connecting shaft, 7 is the water distributor sliding block, 8 is the water distributor motor, 9 is the water distributor sliding rail, 10 is the first foam filling device, 11 is the second filling device, 12 is the foam filling machine detector, 13 is the first foam generator, 14 is the second foam generator, 15 is the second foam generator connecting shaft, 16 is the second foam generator rotating motor, 17 is the connecting belt unit, 171 is the connecting belt frame, 172 is the belt conveying sensor, 173 is the connecting belt motor, 174 is the connecting belt main transmission shaft, 175 is the connecting belt chain wheel, 176 is the connecting belt chain, 177 is the connecting belt from transmission shaft, 178 is the connecting belt from chain wheel, 179 is the connecting belt conveying main chain wheel, 1710 is the connecting belt conveying from chain wheel, 18 is the lifting belt unit, 181 is the lifting belt frame, 182 is the first lifting belt main transmission shaft, 183 is the second lifting belt main transmission shaft, 184 is the first lifting belt motor, 185 is the second lifting belt motor, 186 is the first lifting belt from transmission shaft, 187 is the second lifting belt from transmission shaft, 188 is the first lifting belt chain, 189 is the second lifting belt chain, 1810 is the first lifting belt main chain wheel, 1811 is the second lifting belt main chain wheel, 1812 is the first lifting belt from chain wheel, 1813 is the second lifting belt from chain wheel, 19 is the conveying belt unit. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present application are further described below with reference to the accompanying drawings:

[0037] As Figure 1 shown, a muck conveying device of a soil pressure shield tunneling machine, the device comprises a screw conveyor connected to the soil bin of the soil pressure shield tunneling machine, the outlet of the screw conveyor is connected to a foam filling machine, the foam filling machine is connected to a belt conveyor, the outlet end of the belt conveyor is connected to a muck bucket for external transportation; the muck in the soil bin of the soil pressure shield tunneling machine is conveyed to the foam filling machine by the screw conveyor for foam filling, the improved muck is conveyed to the muck bucket by the belt conveyor, and the muck bucket is regularly transported externally by a vehicle.

[0038] As Figure 2As shown, the foam filling machine includes a foam filling machine conveyor belt 1 in communication with the outlet of the screw conveyor, the outlet of the foam filling machine conveyor belt 1 is connected with the inlet of the belt conveyor, a water distributor 2 is correspondingly arranged above the advancing direction of the foam filling machine conveyor belt 1, a plurality of water distribution holes (not shown in the figure) are correspondingly arranged at the lower end of the water distributor 2, the upper end of the water distributor 2 is provided with a water outlet pipe 3, the lower end of the water outlet pipe 3 is in communication with a water storage tank 4; a first foam filler 10 and a second filler 11 are also correspondingly arranged in the advancing direction of the foam filling machine conveyor belt 1.

[0039] As shown in the figure, Figure 3 The belt conveyor includes a connecting belt unit 17 in communication with the outlet of the foam filling machine conveyor belt 1, the connecting belt unit 17 is connected with a lifting belt unit 18, the lifting belt unit 18 is connected with a conveying belt unit 19, and the outlet of the conveying belt unit 19 is connected with a slag hopper for external transportation.

[0040] A water storage tank pump 5 is correspondingly arranged on the water storage tank 4, and the water storage tank pump 5 is in communication with the water outlet pipe 3.

[0041] Water distributor connecting shafts 6 are correspondingly arranged at both ends of the water distributor 2, the water distributor connecting shafts 6 are connected with water distributor sliders 7, and the water distributor sliders 7 are driven by a water distributor motor 8 to slide on water distributor slide rails 9.

[0042] The included angle between the water distributor slide rail 9 and the horizontal plane is 30°-60°.

[0043] The water distributor 2, the first foam filler 10, and the second filler 11 are sequentially arranged along the advancing direction of the foam filling machine conveyor belt 1, and a foam filling machine detector 12 is also correspondingly arranged at the end of the foam filling machine conveyor belt 1.

[0044] The first foam filler 10 is in communication with a first foam generator 13, and the second filler 11 is in communication with a second foam generator 14; the two ends of the second foam generator 14 are connected with the output shafts of a second foam generator connecting shaft 15 and a second foam generator rotating motor 16. The plurality of first foam fillers 10 and the second fillers 11 can improve the mixing degree of foam and slag soil and ensure that the slag soil will not be scattered in the subsequent process.

[0045] As shown in the figure, Figure 4As shown, the connecting belt unit 17 comprises a connecting belt frame 171, a belt conveying sensor 172 is correspondingly arranged on the connecting belt frame 171, a connecting belt motor 173 is correspondingly arranged below the connecting belt frame 171, the connecting belt motor 173 correspondingly drives a connecting belt main transmission shaft 174, the connecting belt main transmission shaft 174 is correspondingly connected with a pair of connecting belt main sprockets 175, the connecting belt main sprockets 175 correspondingly drive a connecting belt slave transmission shaft 177 through a connecting belt chain 176, a connecting belt conveying main sprocket 179 is correspondingly arranged on the inner side of the connecting belt main transmission shaft 174, and a connecting belt conveying slave sprocket 1710 is correspondingly arranged on the inner side of the belt slave transmission shaft 177. A connecting belt body (not shown in the figure) is correspondingly arranged on the connecting belt conveying main sprocket 179 and the connecting belt conveying slave sprocket 1710.

[0046] The connecting belt main sprocket 175 is symmetrically arranged at both ends of the connecting belt main transmission shaft 174, and the two connecting belt main sprockets 175 are correspondingly connected with the two connecting belt chains 176, respectively. A pair of connecting belt slave sprockets 178 is correspondingly arranged at both ends of the connecting belt slave transmission shaft 177, and the pair of connecting belt slave sprockets 178 is driven by the connecting belt chain 176, respectively. The connecting belt conveying main sprocket 179 is two, which are arranged on the inner side of the two connecting belt main sprockets 175 of the connecting belt main transmission shaft 174. The connecting belt conveying slave sprocket 1710 is two, which are arranged on the inner side of the two connecting belt slave sprockets 178 of the belt slave transmission shaft 177.

[0047] As shown in the figure, Figure 5 The lifting belt unit 18 comprises a lifting belt frame 181, a first lifting belt main transmission shaft 182 and a second lifting belt main transmission shaft 183 are correspondingly arranged at one end of the lifting belt frame 181, and the first lifting belt main transmission shaft 182 and the second lifting belt main transmission shaft 183 are correspondingly driven by a first lifting belt motor 184 and a second lifting belt motor 185, respectively.

[0048] A first lifting belt slave transmission shaft 186 and a second lifting belt slave transmission shaft 187 are correspondingly arranged at the other end of the lifting belt frame 181, and the horizontal positions of the first lifting belt main transmission shaft 182 and the second lifting belt main transmission shaft 183 are higher than those of the first lifting belt slave transmission shaft 186 and the second lifting belt slave transmission shaft 187.

[0049] The first lifting belt main transmission shaft 182 and the second lifting belt main transmission shaft 183 drive the first lifting belt slave transmission shaft 186 and the second lifting belt slave transmission shaft 187 through a first lifting belt chain 188 and a second lifting belt chain 189, respectively.

[0050] The first lifting belt main transmission shaft 182 and the second lifting belt main transmission shaft 183 are respectively provided with a first lifting belt main sprocket 1810 and a second lifting belt main sprocket 1811 on the inner side thereof, and the first lifting belt slave transmission shaft 186 and the second lifting belt slave transmission shaft 187 are respectively provided with a first lifting belt slave sprocket 1812 and a second lifting belt slave sprocket 1813 on the inner side thereof.

[0051] The height of the first lifting belt main sprocket 1810 and the second lifting belt main sprocket 1811 is higher than that of the first lifting belt slave sprocket 1812 and the second lifting belt slave sprocket 1813.

[0052] The axis of the first lifting belt main transmission shaft 182 and the second lifting belt main transmission shaft 183 are located on the same straight line.

[0053] The first lifting belt main sprocket 1810 and the second lifting belt main sprocket 1811 are respectively provided with two symmetrical sprockets. The separated first lifting belt main transmission shaft 182 and the second lifting belt main transmission shaft 183 and the related separated matching equipment can effectively improve the working efficiency and stability of the lifting belt unit 18.

[0054] Although the technical solutions of the present application have been described in detail and enumerated, it should be understood that modifications to the above embodiments or the adoption of equivalent alternatives will be apparent to those skilled in the art, and such modifications or improvements made without departing from the spirit of the present application are within the scope of the present application.

Claims

1. A muck conveyor for an earth pressure balance tunneling machine, characterized by: The device comprises a screw conveyor connected with the soil bin of the earth pressure shield tunneling machine, the outlet of the screw conveyor is connected with a foam injector, the foam injector is connected with a belt conveyor, and the outlet end of the belt conveyor is connected with a residue hopper for external transportation; The foam injector comprises a foam injector belt (1) in communication with the outlet of the screw conveyor, the outlet of the foam injector belt (1) is connected with the inlet of the belt conveyor, a water distributor (2) is arranged above the advancing direction of the foam injector belt (1), a plurality of water distribution holes are arranged at the lower end of the water distributor (2), a water outlet pipe (3) is arranged at the upper end of the water distributor (2), and the lower end of the water outlet pipe (3) is in communication with a water storage tank (4); a first foam injector (10) and a second foam injector (11) are also arranged in the advancing direction of the foam injector belt (1). The belt conveyor comprises a connecting belt unit (17) in communication with the outlet of the foam injector belt (1), the connecting belt unit (17) is connected with a lifting belt unit (18), the lifting belt unit (18) is connected with a conveying belt unit (19), and the outlet of the conveying belt unit (19) is connected with a residue hopper for external transportation. The lifting belt unit (18) comprises a lifting belt frame (181), a first lifting belt main transmission shaft (182) and a second lifting belt main transmission shaft (183) are arranged at one end of the lifting belt frame (181), the first lifting belt main transmission shaft (182) and the second lifting belt main transmission shaft (183) are driven by a first lifting belt motor (184) and a second lifting belt motor (185) respectively, and a first lifting belt slave transmission shaft and a second lifting belt slave transmission shaft are arranged at the other end of the lifting belt frame (181); the horizontal positions of the first lifting belt main transmission shaft (182) and the second lifting belt main transmission shaft (183) are higher than those of the first lifting belt slave transmission shaft and the second lifting belt slave transmission shaft. The water distributor (2), the first foam injector (10) and the second foam injector (11) are arranged in sequence along the advancing direction of the foam injector belt (1), and a foam injector detector (12) is also arranged at the end of the foam injector belt (1). Water distributor connecting shafts (6) are arranged at both ends of the water distributor (2), the water distributor connecting shafts (6) are connected with water distributor sliders (7), the water distributor sliders (7) are driven by a water distributor motor (8) to slide on a water distributor sliding rail (9), and the included angle between the water distributor sliding rail (9) and the horizontal plane is 30°-60°. The axes of the first lifting belt main transmission shaft (182) and the second lifting belt main transmission shaft (183) are located on the same straight line.

2. A soil conveying device of a soil pressure shield machine according to claim 1, characterized in that: A water storage tank water pump (5) is arranged on the water storage tank (4), and the water storage tank water pump (5) is in communication with the water outlet pipe (3).

3. The soil conveying device of a soil pressure shield machine according to claim 1, characterized in that: The first foam filler (10) is in corresponding communication with a first foam generator (13), and the second filler (11) is in corresponding communication with a second foam generator (14); Two ends of the second foam generator (14) are in corresponding connection with a second foam generator connecting shaft (15) and an output shaft of a second foam generator rotating motor (16).

4. The soil conveying device of a soil pressure shield machine according to claim 1, characterized in that: The connecting belt unit (17) comprises a connecting belt frame (171), a belt type conveying sensor (172) is correspondingly arranged on the connecting belt frame (171), a connecting belt motor (173) is correspondingly arranged below the connecting belt frame (171), the connecting belt motor (173) correspondingly drives a connecting belt main transmission shaft (174), the connecting belt main transmission shaft (174) is in corresponding connection with a pair of connecting belt main sprockets (175), the connecting belt main sprockets (175) correspondingly drive a connecting belt slave transmission shaft (177) through a connecting belt chain (176), a connecting belt conveying main sprocket (179) is correspondingly arranged on the inner side of the connecting belt main transmission shaft (174), a connecting belt conveying slave sprocket (1710) is correspondingly arranged on the inner side of the belt slave transmission shaft (177), and a connecting belt body is correspondingly arranged on the connecting belt conveying main sprocket (179) and the connecting belt conveying slave sprocket (1710).

5. A soil delivery device for an earth pressure balance earth boring machine as claimed in claim 4 wherein: The connecting belt main sprockets (175) are symmetrically arranged at two ends of the connecting belt main transmission shaft (174), and the two connecting belt main sprockets (175) are correspondingly connected with two connecting belt chains (176) respectively, a pair of connecting belt slave sprockets (178) are correspondingly arranged at two ends of the connecting belt slave transmission shaft (177), the pair of connecting belt slave sprockets (178) are driven by the connecting belt chains (176) respectively, the connecting belt conveying main sprocket (179) is arranged on the inner side of the two connecting belt main sprockets (175) of the connecting belt main transmission shaft (174), and the connecting belt conveying slave sprocket (1710) is arranged on the inner side of the two connecting belt slave sprockets (178) of the belt slave transmission shaft (177).

6. The soil conveying device of a soil pressure shield machine according to claim 1, characterized in that: The first lifting belt main transmission shaft (182) and the second lifting belt main transmission shaft (183) drive the first lifting belt slave transmission shaft (186) and the second lifting belt slave transmission shaft (187) through the first lifting belt chain (188) and the second lifting belt chain (189) respectively. First lifting belt main sprockets (1810) and second lifting belt main sprockets (1811) are correspondingly arranged on the inner sides of the first lifting belt main transmission shaft (182) and the second lifting belt main transmission shaft (183) respectively, and first lifting belt slave sprockets (1812) and second lifting belt slave sprockets (1813) are correspondingly arranged on the inner sides of the first lifting belt slave transmission shaft (186) and the second lifting belt slave transmission shaft (187) respectively. The height of the first and second lifting belt main sprockets (1810, 1811) is higher than that of the first and second lifting belt slave sprockets (1812, 1813).

7. A soil delivery device for an earth pressure balance earth boring machine as claimed in claim 6 wherein: The first and second lifting belt main sprockets (1810, 1811) are respectively two symmetrically arranged.

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