CN207715152U - A kind of device for improving the unearthed effect of shield machine soil-discharging port - Google Patents

Abstract

The utility model discloses a kind of devices for improving the unearthed effect of shield machine soil-discharging port, relate generally to shield machine excavation device field.Including cone of depression, drainage tube, fixing pipe, telescoping tube and telescoping mechanism, it is equipped at the top of the drainage tube and is open into soil with what cone of depression was adapted, the drainage tube side is equipped with into soil and exports, the bottom plate of the drainage tube is retractable bottom plate, the fixing pipe be detachably arranged at drainage tube into soil export side, the telescoping tube and fixing pipe are adapted, the telescoping tube by telescoping mechanism can the telescoping mechanism described in the stretching motion of fixing pipe periphery be detachably connected with drainage tube side wall.The beneficial effects of the utility model are：The present apparatus is solved when the plasticity of soil is big or the soil body contains dilutional hyponatremia and gushs, the problem of effectively soil can not be discharged at earth pressure balance shield machine screw conveyor soil-discharging port.

Description

A kind of device for improving the unearthed effect of shield machine soil-discharging port

Technical field

It is specifically a kind of for improving the unearthed effect of shield machine soil-discharging port the utility model is related to shield machine excavation device field The device of fruit, the device for improving the unearthed effect of earth pressure balance shield machine screw machine soil-discharging port under different condition.

Background technology

In subway tunnel shield construction, earth pressure balance shield machine generally uses screw conveyor as soil-discharging device.Spiral shell The unearthed effect of rotation machine soil-discharging port directly affects construction progress.Wherein there is casting Tu Kou extension soil leads to blocking of being unearthed；The soil body is aqueous When measuring larger, soil outlet generates the problems such as gushing.A large amount of water and soil fall to tunnel and use manual cleaning, and time-consuming, influences to construct, And a large amount of water are down to tunnel and generate security risk.These problems are impacted to tunneling shield construction and inconvenience, are based on this feelings Condition, for improve earth pressure balance shield machine screw machine soil-discharging port be unearthed efficiency demand, research and develop this meet the requirements it is new Type soil-discharging device.

The reason that soil-discharging port hangs soil is caused in shield to be had：Plastic flow of soil is big, and when mobility is poor, soil outlet draws stratum The effect that export soil and aggregation are unearthed is not strong, after cohesive soil is mixed with mud, underground water, is easy to form the prodigious walk of viscosity, Belt both sides are deposited in, the phenomenon of both sides mound, intermediate casting, soil-discharging port extension soil is generated, soil discharge channel reduces, casting efficiency drop It is low.In addition, the reason of causing water and soil slag to be down to tunnel has：The high hydraulic pressure of shield crossing and the larger soil layer of infiltration coefficient, when being unearthed It is difficult to control earth pressure balance, soil-discharging port formation is caused to gush, discharge water content of soil is excessive, and dropping process middling speed of being unearthed is spent Greatly, the soil body falls on conveyer belt and causes to splash.It is unearthed difficult for earth pressure balanced shield screw machine soil outlet at present and gushs and make At a large amount of water and soil outflow conveyer belt problem generally use manual cleaning dregs or modifying agent be added in soil cabin and improve soil The methods of be unearthed again after property, there is presently no be transformed to improve the specific method of unearthed effect to screw machine soil outlet.

Utility model content

The purpose of this utility model is to provide a kind of devices for improving the unearthed effect of shield machine soil-discharging port, it is solved When the plasticity of soil is big or the soil body is containing dilutional hyponatremia and when gushing, at earth pressure balance shield machine screw conveyor soil-discharging port The problem of effectively soil can not being discharged.

The utility model to achieve the above object, is achieved through the following technical solutions：

It is a kind of to be unearthed the device of effect for improving shield machine soil-discharging port, including cone of depression, drainage tube, fixing pipe, stretch The draw and telescoping mechanism, the drainage tube top, which is equipped with, to be open with what cone of depression was adapted into soil, and the drainage tube side is set Have into soil and export, the bottom plate of the drainage tube is retractable bottom plate, and the fixing pipe is detachably arranged at going out into soil for drainage tube Mouthful side, the telescoping tube are adapted with fixing pipe, the telescoping tube by telescoping mechanism can in fixing pipe periphery stretching motion, The telescoping mechanism is detachably connected with drainage tube side wall.

The telescoping mechanism is lead screw transmission mechanism, and electric machine stand, institute are detachably equipped on the side wall of the drainage tube both sides It states and is fixedly installed first servo motor on electric machine stand, the first servo motor is sequentially connected with elongated lead screw, described to stretch Screw is fixed on the side wall of draw both sides, the screw is sequentially connected with elongated lead screw.

The telescoping mechanism is hydraulic gear, and cylinder seat, the cylinder are detachably equipped on the side wall of the drainage tube both sides It is fixedly installed electrohydraulic cylinder on seat, link block is fixed on the side wall of the telescoping tube both sides, the electrohydraulic cylinder Piston-rod end is connect with link block.

The retractable bottom plate includes the first folding bottom plate and the second folding bottom plate, and the first folding bottom plate, second open It is hinged with the both sides sidewall bottom edge of drainage tube respectively to close bottom plate, the first folding bottom plate and the second folding bottom board bottom face are set There is eye-splice, load-bearing plate is plugged in the eye-splice.

On the drainage tube bearing plate, the both sides of the bearing plate side are hinged with into the opposite side side bottom in soil outlet Edge is equipped with steel wire rope, and drainage tube both sides side wall is equipped with the second servo motor, is sequentially connected on second servo motor There is rope sheave, the wirerope-winding is on rope sheave.

The prior art is compared, the beneficial effects of the utility model are：

When Plastic flow of soil even old clay greatly：Telescoping tube is shunk using telescoping mechanism, set is stretched to fixing pipe periphery Contracting mechanism is dismantled from drainage tube side wall, and fixing pipe is dismantled from drainage tube, and so fixing pipe and telescoping tube are all from drainage tube On disassemble.Then the retractable bottom plate of drainage tube is opened, retractable bottom plate freely hangs down, as drainage tube both sides side wall A part, at this time the soil body can fall directly at conveyer belt, discharge it.When improving the excessive even old clay of plasticity of soil, soil Liquid flowability is poor, and the soil body is collected at the problem of soil outlet can not fall.Drainage tube both sides side wall more effectively guides the soil body downward Flowing, makes the soil body be easy to fall, and increases casting efficiency, prevents the soil body to be deposited in soil outlet and result in blockage.

When the soil body is aqueous larger or even gushs:Fixing pipe reinstalls on drainage tube, and telescoping mechanism is installed again Onto drainage tube side wall, so fixing pipe and telescoping tube all reinstall on drainage tube.Then use telescoping mechanism will Telescoping tube stretches out from fixing pipe, and telescoping tube is made to extend back, and then closes the retractable bottom plate of drainage tube.Aqueous larger or hair The raw soil body gushed, which passes through from cone of depression into soil opening, drops into drainage tube, using into soil outlet flow to successively fixing pipe, Telescoping tube is expelled to from telescoping tube distal opening on conveyer belt, and the position that falls of the soil body is made to move up, telescoping tube distal opening and biography Send the height very little between band, with the speed of this whereabouts for reducing soil, to have certain speed gush the soil body and water plays buffering Effect makes it fall position square on a moving belt, prevents the soil body from being accumulated at soil outlet, avoid the soil body from falling on conveyer belt and cause to spout It splashes, reduces the soil body and water for falling into tunnel bottom.

Description of the drawings

Attached drawing 1 is 1 concrete structure schematic diagram of the utility model embodiment.

Attached drawing 2 is 2 concrete structure schematic diagram of the utility model embodiment.

Attached drawing 3 is 1 use state side view of the utility model embodiment.

Attached drawing 4 is retractable bottom plate vertical view in the utility model.

Label shown in attached drawing：

1, cone of depression；2, drainage tube；3, fixing pipe；4, telescoping tube；5, it is open into soil；6, it is exported into soil；7, retractable Bottom plate；8, electric machine stand；9, first servo motor；10, elongated lead screw；11, screw；12, cylinder seat；13, electrohydraulic cylinder；14、 Link block；15, piston rod；16, the first folding bottom plate；17, the second folding bottom plate；18, eye-splice；19, load-bearing plate；20, load-bearing Plate；21, steel wire rope；22, the second servo motor；23, rope sheave；24, conveyer belt.

Specific implementation mode

With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen It please limited range.

Described in the utility model is a kind of device for improving the unearthed effect of shield machine soil-discharging port, and agent structure includes drop Funnel 1, drainage tube 2, fixing pipe 3, telescoping tube 4 and telescoping mechanism are fallen, 2 top of the drainage tube is equipped with suitable with 1 phase of cone of depression Answer into soil opening 5, the soil body is fallen in cone of depression 1, by 5 being dropped into drainage tube 2 into soil opening.The drainage tube 2 one Side is equipped with into soil outlet 6, flows out the outlet of drainage tube 2 for the soil body that is aqueous larger or gushing into soil outlet 6.The drainage The bottom plate of pipe 2 is retractable bottom plate 7, when Plastic flow of soil even old clay greatly, opens the retractable bottom plate 7 of drainage tube 2, can Folding bottom plate 7 freely hangs down, and as a part for 2 both sides side wall of drainage tube, the soil body can be fallen directly at conveyer belt 24 at this time, general It is discharged.The fixing pipe 3 be bolted be detachably arranged at drainage tube 2 into soil export 6 sides, the telescoping tube 4 Be adapted with fixing pipe 3, the telescoping tube 4 by telescoping mechanism can in the peripheral stretching motion of fixing pipe 3, the telescoping mechanism with 2 side wall of drainage tube is detachably connected.When the soil body is aqueous larger or even gushs, the retractable bottom plate 7 of drainage tube 2 is closed, The soil body that is aqueous larger or gushing, which passes through from cone of depression 1 into soil opening 5, drops into drainage tube 2, and 6 are exported using into soil It flow to fixing pipe 3, telescoping tube 4 successively, is expelled on conveyer belt 24 from 4 distal opening of telescoping tube.

Realization telescoping tube 4 for convenience is screw rod transmission machine in the peripheral stretching motion of fixing pipe 3, the telescoping mechanism Structure, electric machine stand 8 is detachably equipped on 2 both sides side wall of the drainage tube, and electric machine stand 8 passes through spiral shell with 2 both sides side wall of drainage tube It tethers the mode connect to be detachably connected, first servo motor 9, the first servo electricity is fixedly installed on the electric machine stand 8 Machine 9 is sequentially connected with elongated lead screw 10, is fixed with screw 11 on 4 both sides side wall of the telescoping tube, the screw 11 with it is elongated Lead screw 10 is sequentially connected.First servo motor 9 drives elongated lead screw 10 to rotate, and screw 11 is made to be translated along elongated lead screw 10, into And screw 11 is translated with fixing pipe 3 along elongated lead screw 10, it is flat to control by the rotation direction for controlling first servo motor 9 The direction of shifting.

Realization telescoping tube 4 for convenience is hydraulic drive motor in the peripheral stretching motion of fixing pipe 3, the telescoping mechanism Structure, cylinder seat 12 is detachably equipped on 2 both sides side wall of the drainage tube, and cylinder seat 12 is bolted with 2 both sides side wall of drainage tube Mode be detachably connected, be fixedly installed electrohydraulic cylinder 13 in the cylinder seat 12, it is fixed on 4 both sides side wall of the telescoping tube Equipped with link block 14,15 end of piston rod of the electrohydraulic cylinder 13 is connect with link block 14.13 piston rod of electrohydraulic cylinder 15 stretching motion drives the alternating translational movement of fixing pipe 3.

The retractable bottom plate 7 include first folding bottom plate 16 and second open and close bottom plate 17, it is described first folding bottom plate 16, Second folding bottom plate 17 is hinged with the both sides sidewall bottom edge of drainage tube 2 respectively, and the first folding bottom plate 16 and second is opened It closes 17 bottom surface of bottom plate and is equipped with eye-splice 18, load-bearing plate 19 is plugged in the eye-splice 18.Load-bearing plate 19 is inserted into eye-splice 18, Very easily the first folding bottom plate 16 and second can be opened and closed after bottom plate 17 closes and be closed, avoid the first folding bottom plate 16 and the Two folding bottom plates 17 are again turned under soil body gravity, and the soil body for keeping water larger or gushing directly is arranged from drainage tube 2 Go out to conveyer belt 24.

On the drainage tube 2 bearing plate 20, the bearing plate 20 are hinged with into 6 opposite side side bottoms of soil outlet Both sides of the edge are equipped with steel wire rope 21, and 2 both sides side wall of the drainage tube is equipped with the second servo motor 22, second servo motor Rope sheave 23 is sequentially connected on 22, the steel wire rope 21 is wrapped on rope sheave 23.Second servo motor 22 is by rotating band running rope 23 rotation of wheel, the positive and negative rotation of rope sheave 23 control load-bearing to control the kinking and unwrapping wire of steel wire rope 21 according to the property of the soil body The Horizontal load-bearing of plate 20 and vertical sagging state.

Application method：

When the soil body is the big soil layer of the such plasticity of old clay：

Telescoping tube 4 is shunk using telescoping mechanism, 4 sets of telescoping tube to 3 periphery of fixing pipe, telescoping mechanism is from 2 side of drainage tube Wall is dismantled, and fixing pipe 3 is dismantled from drainage tube 2, and so fixing pipe 3 and telescoping tube 4 are all disassembled from drainage tube 2. Then the second servo motor 22 drives rope sheave 23 to rotate, and rotating to control the unwrapping wire of steel wire rope 21 for rope sheave 23 makes bearing plate 20 Vertical sagging, then the extraction load-bearing plate 19 out of eye-splice 18, opens the retractable bottom plate 7 of drainage tube 2, retractable bottom plate 7 is certainly By hanging down, as a part for 2 both sides side wall of drainage tube, the soil body can be fallen directly at conveyer belt 24 at this time, be discharged it.Improve the soil When body is the such plasticity of old clay big soil layer, soil body flow is poor, and the soil body is collected at the problem of soil outlet can not fall.Drainage 2 both sides side wall of pipe more effectively guides the soil body to flow downward, and the soil body is made to be easy to fall, and increases casting efficiency, prevents the soil body from accumulating It results in blockage in soil outlet.

When the soil body is aqueous larger or even gushs:

Fixing pipe reinstalls on drainage tube, and telescoping mechanism is installed to again on drainage tube side wall, so fixing pipe It is all reinstalled on drainage tube with telescoping tube.Then telescoping tube 4 is stretched out using telescoping mechanism from fixing pipe 3, makes to stretch Pipe 4 extends back, and closes the retractable bottom plate 7 of drainage tube 2, and load-bearing plate 19 is then pumped into out of eye-splice 18.It is aqueous larger or The soil body gushed, which passes through from cone of depression 1 into soil opening 5, drops into drainage tube 2, is flow to successively admittedly using into soil outlet 6 Fixed tube 3, telescoping tube 4 are expelled to from 4 distal opening of telescoping tube on conveyer belt 24, so that the position that falls of the soil body is moved up, telescoping tube 4 Height very little between distal opening and conveyer belt 24, with the speed of this whereabouts for reducing soil, to there is the soil of gushing of certain speed Body and water play cushioning effect, it is made to fall the position above conveyer belt 24, prevent the soil body from being accumulated at soil outlet, avoid the soil body It falls on conveyer belt 24 to cause to splash, reduces the soil body and water for falling into tunnel bottom.

Embodiment 1：

Described in the utility model is a kind of device for improving the unearthed effect of shield machine soil-discharging port, and agent structure includes drop Funnel 1, drainage tube 2, fixing pipe 3, telescoping tube 4 and telescoping mechanism are fallen, 2 top of the drainage tube is equipped with suitable with 1 phase of cone of depression Answer into soil opening 5,2 side of the drainage tube is equipped with into soil outlet 6, and the bottom plate of the drainage tube 2 is retractable bottom plate 7, institute That states that fixing pipe 3 is detachably arranged at drainage tube 2 by bolted connection exports 6 sides into soil, the telescoping tube 4 with it is solid Fixed tube 3 is adapted, and the telescoping tube 4 can pass through spiral shell by telescoping mechanism in the peripheral stretching motion of fixing pipe 3, the telescoping mechanism The mode connect is tethered to be detachably connected with 2 side wall of drainage tube.The telescoping mechanism is lead screw transmission mechanism, 2 liang of the drainage tube Side side wall is detachably equipped with electric machine stand 8 by bolted connection, and the first servo is fixedly installed on the electric machine stand 8 Motor 9, the first servo motor 9 are sequentially connected with elongated lead screw 10, screw are fixed on 4 both sides side wall of the telescoping tube 11, the screw 11 is sequentially connected with elongated lead screw 10.The retractable bottom plate 7 includes that the first folding bottom plate 16 and second opens and closes Bottom plate 17, the first folding bottom plate 16, second open and close bottom plate 17 and are hinged respectively with the both sides sidewall bottom edge of drainage tube 2, The first folding bottom plate 16 and second opens and closes 17 bottom surface of bottom plate and is equipped with eye-splice 18, and load-bearing plate is plugged in the eye-splice 18 19.On the drainage tube 2 bearing plate 20,20 both sides of the bearing plate are hinged with into 6 opposite side side bottoms of soil outlet Edge is equipped with steel wire rope 21, and 2 both sides side wall of the drainage tube is equipped with the second servo motor 22, on second servo motor 22 It is sequentially connected with rope sheave 23, the steel wire rope 21 is wrapped on rope sheave 23.

Embodiment 2：

The telescoping mechanism of comparative example 1, the present embodiment 2 is hydraulic gear, 2 both sides side wall of the drainage tube It is detachably equipped with cylinder seat 12 by bolted connection, electrohydraulic cylinder 13 is fixedly installed in the cylinder seat 12, it is described to stretch Link block 14 is fixed on 4 both sides side wall of the draw, 15 end of piston rod of the electrohydraulic cylinder 13 is connect with link block 14. Remaining structure is identical as the structure of embodiment 1 and principle.

Claims (5)

1. a kind of device for improving the unearthed effect of shield machine soil-discharging port, it is characterised in that：Including cone of depression (1), drainage (2), fixing pipe (3), telescoping tube (4) and telescoping mechanism are managed, is equipped at the top of the drainage tube (2) and is adapted with cone of depression (1) Be open (5) into soil, drainage tube (2) side is equipped with into soil and exports (6), and the bottom plate of the drainage tube (2) is retractable bottom Plate (7), what the fixing pipe (3) was detachably arranged at drainage tube (2) exports (6) side into soil, the telescoping tube (4) with it is fixed (3) are managed to be adapted, the telescoping tube (4) by telescoping mechanism can in the peripheral stretching motion of fixing pipe (3), the telescoping mechanism with Drainage tube (2) side wall is detachably connected.

2. a kind of device for improving the unearthed effect of shield machine soil-discharging port according to claim 1, it is characterised in that：It is described Telescoping mechanism is lead screw transmission mechanism, and electric machine stand (8), the motor are detachably equipped on the side wall of drainage tube (2) both sides First servo motor (9) is fixedly installed on engine base (8), the first servo motor (9) is sequentially connected with elongated lead screw (10), Screw (11) is fixed on the side wall of telescoping tube (4) both sides, the screw (11) is sequentially connected with elongated lead screw (10).

3. a kind of device for improving the unearthed effect of shield machine soil-discharging port according to claim 1, it is characterised in that：It is described Telescoping mechanism is hydraulic gear, and cylinder seat (12), the cylinder seat (12) are detachably equipped on the side wall of drainage tube (2) both sides On be fixedly installed electrohydraulic cylinder (13), be fixed with link block (14) on the side wall of telescoping tube (4) both sides, it is described electronic Piston rod (15) end of hydraulic cylinder (13) is connect with link block (14).

4. according to a kind of device for improving the unearthed effect of shield machine soil-discharging port of claims 1 or 2 or 3, feature exists In：The retractable bottom plate (7) includes the first folding bottom plate (16) and the second folding bottom plate (17), the first folding bottom plate (16), the second folding bottom plate (17) is hinged with the both sides sidewall bottom edge of drainage tube (2) respectively, the first folding bottom plate (16) and second folding bottom plate (17) bottom surface is equipped with eye-splice (18), and load-bearing plate (19) is plugged on the eye-splice (18).

5. a kind of device for improving the unearthed effect of shield machine soil-discharging port according to claim 4, it is characterised in that：It is described On drainage tube (2) bearing plate (20), bearing plate (20) both sides are hinged with into the opposite side side bottom in soil outlet (6) Edge is equipped with steel wire rope (21), and drainage tube (2) both sides side wall is equipped with the second servo motor (22), the second servo electricity Rope sheave (23) is sequentially connected on machine (22), the steel wire rope (21) is wrapped on rope sheave (23).