CN217107020U

CN217107020U - Rotatable gate structure of screw machine

Info

Publication number: CN217107020U
Application number: CN202220672615.9U
Authority: CN
Inventors: 叶理; 徐光华; 程玉珊; 李元华; 温彦杰; 陈和平; 汪兴浩; 刘德斌; 庄泽伟; 武贤掌
Original assignee: Yueshuidian Track Traffic Construction Co ltd; Guangdong No 2 Hydropower Engineering Co Ltd
Current assignee: Yueshuidian Track Traffic Construction Co ltd; Guangdong No 2 Hydropower Engineering Co Ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-08-02
Anticipated expiration: 2032-03-25

Abstract

The utility model provides a rotatable formula gate structure of screw machine, including the screw machine, the screw machine includes first screw section of thick bamboo and second screw section of thick bamboo, the downside of first screw section of thick bamboo is provided with first row's cinder gate, be provided with first row's cinder gate on the first row's cinder gate, the upside of second screw section of thick bamboo still is provided with second row's cinder gate, be provided with second row's cinder gate on the second row's cinder gate, between first row's cinder gate and the first row's cinder gate, and be provided with urgent gate between second row's cinder gate and the second row's cinder gate respectively, can dismantle through the bolt between first screw section of thick bamboo and the second screw section of thick bamboo and be connected, dismantle the first screw section of thick bamboo of back and can rotate. Through above-mentioned structure, when wearing and tearing appear in the sediment gate of downside, close the urgent gate of downside to remove the sediment gate of normal sediment gate of upside to downside with the sediment gate of replacement wearing and tearing through rotatory first helical tube, thereby realize the quick replacement of sediment gate, with reliable and the security of guaranteeing the tunnelling.

Description

Rotatable gate structure of screw machine

Technical Field

The utility model relates to a screw machine technical field especially involves a rotatable formula gate structure of screw machine.

Background

The screw conveyor is an important component of a shield machine muck conveying system, and not only is the screw conveyor responsible for discharging muck in an excavation bin of the shield machine in shield construction, but also the screw conveyor can control the pressure of soil in the excavation bin, ensure the pressure balance of excavation surface soil and prevent the ground from collapsing or arching.

At present, most of slag discharge doors of the traditional screw machine adopt single gates, and part of complicated stratums or tunneling sections with large burial depth adopt double gates. Due to stratum change during tunnel construction, the wearing phenomenon of a slag discharge door of a screw conveyor can often occur, so that the phenomenon of gushing easily occurs during slag discharge or the phenomenon that a gate is not tightly closed can be caused, and great influence is caused on tunneling safety and civilized construction of a tunnel. In the stratum of big buried depth, rich sand layer or high water head pressure tunnelling, the influence of sediment discharge gate wearing and tearing is more huge, and under this operating mode, in case wearing and tearing appear, it will face the huge danger that gushes to carry out the gate change in a trade, and shield constructs the machine and will appear flooding phenomenon when serious.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned technical problem, provide a rotatable formula gate structure of screw machine, through this structure, when wearing and tearing appear in the row's of downside gate, close the urgent gate of downside to through rotatory first helical tube with the normal row's of upside arrange the row's of rotatory gate to the row's of downside gate with the replacement wearing and tearing, thereby realize arranging the quick replacement of gate, in order to guarantee reliable and the security of tunnelling.

The utility model provides a solve above-mentioned technical problem, a rotatable formula gate structure of screw machine is provided, including the screw machine, the screw machine includes first spiral shell and second spiral shell, the downside of first spiral shell is provided with first row's cinder notch, be provided with first row's cinder gate on the first row's cinder notch, the upside of second spiral shell still is provided with second row's cinder notch, be provided with second row's cinder gate on the second row's cinder notch, between first row's cinder notch and the first row's cinder gate to and be provided with urgent gate between second row's cinder notch and the second row's cinder gate respectively, can dismantle through the bolt between first spiral shell and the second spiral shell and be connected, dismantle the back first spiral shell can rotate.

As a further improvement, the utility model also comprises a C-shaped limiting block, the joint of the first spiral cylinder and the second spiral cylinder is provided with a flange plate for bolt connection, and the C-shaped limiting block detachably cover is arranged on the connecting flange plate.

As a further improvement, the first slag discharge gate and the first slag discharge port are arranged between each other, and the second slag discharge gate and the second slag discharge port are respectively provided with an O-shaped ring for sealing.

As a further improvement, the first row of sediment gate and second row of sediment gate all adopt double-deck gate, it is sealed that all to be provided with T type filler on double-deck gate's the two-layer gate, two-layer gate on the double-deck gate sets up respectively in the left and right sides and flexible opposite direction.

As a further improvement, the first spiral cylinder is provided with at least two Y-shaped seals, and every two Y-shaped seals form a sealed chamber, and every sealed chamber is provided with grease filling opening and viewing aperture respectively.

As a further improvement of the utility model, the first slag discharge gate and the second slag discharge gate are detachably installed on the emergency gate through bolts respectively.

As a further improvement, the utility model also comprises an oil cylinder, the opening and closing of the first slag discharge gate, the second slag discharge gate and the emergency gate are respectively controlled by the oil cylinder.

As a further improvement of the present invention, the screw machine further includes a hydraulic motor, a speed reducer, and a screw shaft, the hydraulic motor is installed at the end of the first screw cylinder, and is connected with the screw shaft through the speed reducer, the screw shaft is disposed in the cylinder body formed by the first screw cylinder and the second screw cylinder.

The utility model has the advantages that: the utility model discloses in be provided with urgent gate, and still be provided with the second at the upside of first spiral section of thick bamboo and arrange the sediment gate, when first sediment gate takes place wearing and tearing, the urgent gate of accessible closes first sediment mouth fast to avoid appearing gushing the phenomenon, guarantee the stability of tunnelling pressure, avoid the earth's surface to subside. Simultaneously, dismantle the bolt between first spiral shell and the second spiral shell, then rotatory first spiral shell makes the second arrange the sediment gate and rotate to the downside, can accomplish the change of arranging the sediment gate to make the screw machine drop into use again fast, easy operation is convenient. After the completion is rotatory, the screw machine normally works through the second row sediment gate, and the first row sediment gate after wearing and tearing this moment is located the screw machine upside, because the space directly over the screw machine is great, including the sealing action of urgent gate, consequently can be convenient for the staff to dismantle the first row sediment gate of wearing and tearing, wait to restore the back and install again and use to realize arranging the overhaul of sediment gate under the condition that does not influence the normal work of screw machine. When the second slag discharging gate is worn, the second slag discharging gate is replaced and repaired through the operation, so that the normal tunneling is not influenced, and the trouble caused by the wear of the slag discharging gate in the tunneling process can be effectively avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion A of FIG. 1;

FIG. 4 is an enlarged view of a portion A of FIG. 1;

description of the labeling: 1-a first spiral cylinder, 2-a second spiral cylinder, 3-a first slag discharge port, 4-an emergency gate, 5-a first slag discharge gate, 6-a second slag discharge port, 7-a second slag discharge gate, 8-a flange plate, a 9-C type limiting block, a 10-O type ring seal, an 11-T type packing seal, a 12-Y type seal, a 13-grease injection port, 14-an observation port, 15-a hydraulic motor, 16-a speed reducer and 17-a spiral shaft.

Detailed Description

The present invention will be further described with reference to the following embodiments and accompanying drawings.

As shown in fig. 1, a rotatable gate structure of a screw machine comprises a screw machine, wherein the screw machine comprises a first screw cylinder 1 and a second screw cylinder 2, the first screw cylinder 1 and the second screw cylinder 2 are detachably connected together through a bolt, and the first screw cylinder 1 can rotate after being detached. The downside of first spiral shell 1 is equipped with first row of cinder notch 3, has set gradually urgent gate 4 and first row of sediment gate 5 on the first row of cinder notch 3. The upper side of the first spiral cylinder 1 is provided with a second slag discharge port 6, and the second slag discharge port 6 is sequentially provided with an emergency gate 4 and a second slag discharge gate 7. The positions of the first and second

slag discharge gates

5 and 7 can be inter-modulated by rotating the first helical cylinder 1. The second upper slag discharge gate 7 is closed in the normal tunneling state, and the screw machine discharges slag through the first lower slag discharge gate 5. When the first row of sediment gate 5 of downside takes place wearing and tearing, rotate the first row of sediment gate 5 of the normal second row of sediment gate 7 of upside with the replacement wearing and tearing of downside through rotatory first spiral shell 1 to realize arranging the quick replacement of sediment gate. The emergency gate 4 is normally open under the normal tunneling condition, is mainly thrown into and used after the slag discharging gate is worn, does not participate in slag discharge amount control in the tunneling process, and can be closed through the emergency gate 4 after the slag discharging gate is worn so as to prevent water and sand gushing during replacement of the slag discharging gate.

The junction of first spiral shell 1 and second spiral shell 2 is provided with the ring flange 8 that is used for bolted connection, and detachably overlaps along ring flange 8 circumferencial direction and is equipped with four C type stopper 9. This C type stopper 9 needs to be installed before the bolt between first spiral shell 1 and the second spiral shell 2 is dismantled, can prevent through this C type stopper 9 that first spiral shell 1 from leading to first spiral shell 1 and second spiral shell 2 to separate because of the residual pressure in the spiral shell when rotatory.

As shown in fig. 2, O-ring seals 10 are respectively disposed between the first slag discharge gate 5 and the first slag discharge port 3, and between the second slag discharge gate 7 and the second slag discharge port 6. The O-shaped ring seal 10 is tightly pressed through a bolt so as to achieve the tight effect between the slag discharge gate and the slag discharge port. The first slag discharging gate 5 and the second slag discharging gate 7 both adopt double-layer gates, T-shaped filler seals 11 are arranged on the two-layer gates of the double-layer gates, two seal cavities can be formed through the structure, the two-layer gates are closed successively, and the conditions of slag leakage, spewing and the like of the screw machine can be effectively prevented. In addition, two-layer gate on the double-deck gate sets up respectively in the left and right sides and flexible opposite direction, should set up and can effectively prevent to take place the not tight condition of sediment floodgate door of screw machine in the in-process of slagging tap.

As shown in fig. 3 and 4, three Y-shaped seals 12 are disposed on the first spiral cylinder 1, each two Y-shaped seals 12 form a sealed cavity, and each sealed cavity is respectively provided with a grease injection port 13 and a viewing port 14. The grease injection port 13 is connected with a grease distributor on the screw machine, so that grease can be quantitatively supplemented, and redundant grease is directly discharged into the screw cylinder and mixed with muck to be taken away. The injected grease has two main functions, namely effectively slowing down the aging and abrasion of the Y-shaped seal 12, and keeping a certain pressure in the seal cavity to prevent the dregs or muddy water in the spiral cylinder from passing through the seal cavity. The observation port 14 is mainly used for checking the injection condition of grease in the sealed cavity and whether dregs or muddy water passes through the sealed cavity from the spiral cylinder.

The first and second

slag discharge gates

5 and 7 are detachably mounted on the emergency gate 4 by bolts, respectively. With this structure, in the case of closing the emergency gate 4, the bolts can be loosened to detach the slag discharge gate for maintenance or replacement.

The opening and closing of the first slag discharge gate 5, the second slag discharge gate 7 and the emergency gate 4 are controlled by the oil cylinder respectively, and the opening and closing of the gates are controlled by the oil cylinder, so that the details are omitted.

The screw machine further comprises a hydraulic motor 15, a speed reducer 16 and a screw shaft 17, wherein the hydraulic motor 15 is installed at the tail end of the first screw cylinder 1 and is connected with the screw shaft 17 through the speed reducer 16, and the screw shaft 17 is arranged in a cylinder body formed by the first screw cylinder 1 and the second screw cylinder 2.

The working process of the rotatable gate structure of the screw machine is as follows:

1. in the tunneling process, when slurry leakage occurs in the first slag discharge gate 5 on the lower side of the screw machine to affect tunneling, the tunneling is suspended, the double-layer gate of the first slag discharge gate 5 is opened to the maximum stroke, the emergency gate 4 on the first slag discharge port 3 is closed, and the first slag discharge gate 5 is closed after the emergency gate is closed in place.

2. The hydraulic motor 15 of the screw machine is suspended by utilizing a hand-operated hoist on a construction site, and the hydraulic motor 15 at the suspended position is ensured to be rotatable and free of jamming.

3. The inspection port 14 of the sealed chamber is opened to check whether there is a sealing failure resulting in a mud leakage phenomenon, and the injection of grease can be checked. After the error is confirmed, a C-shaped limiting block 9 is arranged at the joint of the first spiral cylinder 1 and the second spiral cylinder 2, so that the phenomenon of spiral cylinder separation caused by overhigh pressure in the cylinders in the rotating process is prevented.

4. And (3) dismantling the bolt between the first spiral cylinder 1 and the second spiral cylinder 2, and rotating the first spiral cylinder 1 clockwise by 180 degrees along the tunneling direction by means of external force (such as a mechanical jack or a hand hoist), so that the second slag discharge gate 7 rotates to the lower side, and the first slag discharge gate 5 rotates to the upper side.

5. After the rotation is finished, the bolt between the first spiral cylinder 1 and the second spiral cylinder 2 is installed, the C-shaped limiting block 9 is removed, and the suspension of the hydraulic motor 15 is removed.

6. And opening the emergency gate 4, and discharging slag by using the second slag discharging gate 7 to recover normal tunneling.

The above embodiments are only used to conveniently illustrate the present invention, and are not intended to limit the present invention in any form, and any person who knows commonly in the technical field has, if not departing from the technical features of the present invention, the equivalent embodiments of the present invention which make local changes or modifications are utilized, and the technical features of the present invention are not departed from, and are still within the scope of the technical features of the present invention.

Claims

1. The utility model provides a rotatable formula gate structure of screw machine, includes the screw machine, the screw machine includes first spiral shell and second spiral shell, the downside of first spiral shell is provided with first row of cinder notch, be provided with first row of cinder gate on the first row of cinder notch, its characterized in that: the upside of second spiral shell still is provided with the second and arranges the cinder notch, be provided with the second on the second row cinder notch and arrange the sediment gate, between first cinder notch and the first sediment gate of arranging to and be provided with urgent gate between second row cinder notch and the second sediment gate respectively, can dismantle through the bolt between first spiral shell and the second spiral shell and be connected, dismantle the back first spiral shell can rotate.

2. A rotatable gate structure for a screw machine according to claim 1, wherein: the connecting device is characterized by further comprising a C-shaped limiting block, a flange plate used for being connected through bolts is arranged at the joint of the first spiral cylinder and the second spiral cylinder, and the C-shaped limiting block is detachably sleeved on the connecting flange plate.

3. A rotatable gate structure for a screw machine according to claim 1, wherein: o-shaped ring seals are respectively arranged between the first slag discharge gate and the first slag discharge port and between the second slag discharge gate and the second slag discharge port.

4. A rotatable gate structure for a screw machine according to claim 1, wherein: the first deslagging gate and the second deslagging gate are both double-layer gates, T-shaped filler seals are arranged on the two layers of gates of the double-layer gates, and the two layers of gates on the double-layer gates are arranged on the left side and the right side respectively and are opposite in stretching direction.

5. A rotatable gate structure for a screw machine according to claim 1, wherein: at least two Y-shaped seals are arranged on the first spiral cylinder, each two Y-shaped seals form a sealed cavity, and a grease injection port and an observation port are respectively arranged in each sealed cavity.

6. A rotatable gate structure for a screw machine according to claim 1, wherein: the first slag discharging gate and the second slag discharging gate are detachably mounted on the emergency gate through bolts respectively.

7. A rotatable gate structure for a screw machine according to claim 1, wherein: the opening and closing of the first slag discharge gate, the second slag discharge gate and the emergency gate are controlled by the oil cylinders respectively.

8. A rotatable gate structure for a screw machine according to any one of claims 1 to 7, wherein: the screw machine further comprises a hydraulic motor, a speed reducer and a screw shaft, wherein the hydraulic motor is installed at the tail end of the first screw cylinder and is connected with the screw shaft through the speed reducer, and the screw shaft is arranged in a cylinder body formed by the first screw cylinder and the second screw cylinder.