CN210117203U

CN210117203U - Lifting system for shield machine

Info

Publication number: CN210117203U
Application number: CN201920653168.0U
Authority: CN
Inventors: 兰军; 华梁炜; 罗泽儒; 李九欧; 苗登君; 曾森; 唐佳伟
Original assignee: Chengdu Industrial Investment Equipment Leasing Co ltd
Current assignee: Chengdu industrial investment equipment Co., Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-02-28
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses a lifting system for a shield machine, which relates to the technical field of shield machines and comprises a base and a shield machine body positioned above the base, wherein four corners at the bottom end of the base are all fixed with supporting legs, the bottom end of the base and the inner sides of the four supporting legs are all fixedly connected with hydraulic cylinders through bolts, the top end of the base is provided with a telescopic column which is in one-to-one correspondence with the four hydraulic cylinders, the top end of the telescopic column is welded with a top plate, the top of the top plate is fixedly connected with a supporting column through bolts, the top end of the supporting column is provided with a supporting plate, the shield machine body is arranged at the top of the supporting plate and is contacted with the side wall of the supporting plate, the utility model filters the return oil of the hydraulic cylinders through a filter screen in a filter box, removes the impurities doped in the return oil, achieves the purpose, so as to facilitate the recycling of the return oil and improve the utilization rate of resources.

Description

Lifting system for shield machine

Technical Field

The utility model belongs to the technical field of the shield constructs the machine, concretely relates to a operating system for shield constructs machine.

Background

The shield machine is a special engineering machine for tunneling, integrates light collection, mechanical, electrical, hydraulic, sensing and information technologies of a modern shield tunneling machine, has the functions of excavating and cutting soil, conveying soil slag, assembling tunnel lining, measuring, guiding, correcting deviation and the like, and is generally divided into a hand-excavation type shield, an extrusion type shield, a semi-mechanical type shield (local air pressure and global air pressure), a mechanical type shield (a chest-excavation type cutting shield, an air pressure type shield, a muddy water pressurization shield, a soil pressure balance shield, a mixed type shield and a special type shield) according to the working principle.

However, the lifting system of the shield machine in the market still has certain defects in the use process, for example, the return oil filtering device is not arranged, the return oil of the hydraulic cylinder in the lifting system cannot be filtered, the return oil is inconvenient to recycle, and in addition, the buffering device is not arranged, so that the shield machine cannot be buffered in the lifting process of the shield machine, the load of the lifting mechanism cannot be reduced, and the lifting mechanism is damaged due to long-term overload work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lift system for shield constructs machine to the oil return that can not filter among the lift system to what provide among the solution above-mentioned background art returns the cyclic utilization of being not convenient for, can not cushion the shield structure machine in addition, and can not alleviate elevating system's load, causes the long-term overload work of elevating system and damages the problem that life is low.

In order to achieve the above object, the utility model provides a following technical scheme: a lifting system for a shield machine comprises a base and a shield machine body positioned above the base, wherein supporting legs are fixed at four corners of the bottom end of the base, hydraulic cylinders are fixedly connected to the bottom end of the base and positioned at the inner sides of the four supporting legs through bolts, telescopic columns which correspond to the four hydraulic cylinders one by one are mounted at the top end of the base, a top plate is welded at the top ends of the telescopic columns, pillars are fixedly connected to the top portions of the top plate through bolts, a supporting plate is mounted at the top ends of the pillars, the shield machine body is placed at the top portions of the supporting plates and is in contact with the side walls of the supporting plates, filter boxes are arranged at two ends of the base and positioned between two adjacent hydraulic cylinders, two filter boxes are fixed between the inner sides of the four supporting legs through fixing plates, a three-way valve is connected to the top ends of, the both ends of three-way valve are connected with the oil return hose that is linked together with two adjacent pneumatic cylinders respectively, the inner wall both sides of rose box all are fixed with three fixture block along vertical direction equidistance, and the block has the filter screen between two relative fixture blocks.

Preferably, two buffer are installed to the both sides of base upper surface and lie in equal symmetry between two adjacent flexible posts, buffer includes buffer board, spliced pole, baffle-box, movable plate and spring, the inside bottom of baffle-box is fixed with two springs through the fixing base symmetry, and the top of two springs all is connected with the bottom of movable plate, the top of movable plate is fixed with the spliced pole, and the buffer board is installed for the one end of movable plate to the spliced pole.

Preferably, the support plate is of an arc structure matched with the outer wall of the shield machine body, and a rubber pad matched with the section shape of the support plate is bonded on the side wall of the support plate adjacent to one side of the shield machine body.

Preferably, the rubber pad is provided with grooves at equal intervals on one side wall of the support plate, so that the side wall of the rubber pad forms a protrusion.

Preferably, the inner wall of the buffer box is symmetrically provided with sliding grooves at two sides, the two ends of the movable plate are respectively fixed with a sliding rail matched with the sliding grooves, and the upper end and the lower end of the inner wall of the sliding grooves are respectively bonded with a buffer pad matched with the depth of the sliding grooves.

Preferably, the opposite corners of one end of the slide rail, which is far away from the moving plate, are all transited by arc chamfers to form arc ends.

Preferably, the buffer board sets up to the arc structure equally, and bonds on the table wall of buffer board indent and has the slipmat, the equidistant notch of having seted up on the table wall of slipmat.

Preferably, the inside of baffle-box still symmetry is provided with two telescopic links, two the telescopic link comprises interior pole and outer pole, and the tip of interior pole is connected with the movable plate, and the tip of outer pole is connected with the fixing base, two the spring is located rather than the outside of the telescopic link that corresponds respectively in the cover.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses an inside filter screen of rose box filters the oil return of pneumatic cylinder, gets rid of the impurity of doping in the oil return, reaches the filterable purpose of oil return, avoids the pipe blockage to return oil cyclic utilization improves resource utilization.

(2) The utility model discloses a buffer device who comprises buffer board, spliced pole, baffle-box, movable plate and spring can cushion the shield constructs the machine and goes up and down, and then reduces drive elevating system's load, avoids the long-term overload work of elevating system and causes the damage to extension elevating system's life.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic view of the internal structure of the filtering box of the present invention;

FIG. 4 is a schematic structural view of the support plate of the present invention;

fig. 5 is a schematic structural view of the buffering device of the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 5;

in the figure: 1-a base; 2-supporting legs; 3-a filter box; 4-an oil delivery pipe; 5-three-way valve; 6-oil return hose; 7-a hydraulic cylinder; 8-telescopic column; 9-a top plate; 10-a pillar; 11-a support plate; 12-rubber pad; 121-grooves; 13-a shield machine body; 14-a buffer device; 141-a buffer plate; 142-a connecting column; 143-buffer boxes; 1431-chute; 1432-cushion; 144-a moving plate; 1441-sliding rail; 14411-circular arc end; 145-non-slip mat; 1451-notch; 146-a spring; 147-a telescoping rod; 15-a filter screen; 16-fixture block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a lifting system for a shield machine comprises a base 1 and a shield machine body 13 positioned above the base 1, wherein supporting legs 2 are fixed at four corners of the bottom of the base 1, hydraulic cylinders 7 are fixedly connected to the bottom of the base 1 and the inner sides of the four supporting legs 2 through bolts, telescopic columns 8 corresponding to the four hydraulic cylinders 7 one by one are mounted at the top end of the base 1, a top plate 9 is welded at the top end of each telescopic column 8, a supporting column 10 is fixedly connected to the top of the top plate 9 through bolts, a supporting plate 11 is mounted at the top end of the supporting column 10, the shield machine body 13 is placed at the top of the supporting plate 11 and is in contact with the side wall of the supporting plate 11, filter boxes 3 are arranged at two ends of the base 1 and between two adjacent hydraulic cylinders 7, return oil is discharged through an oil return hose 6 and discharged into the filter boxes 3 under the action of a three-, then the oil flows into a filter screen 15 in the filter box 3, the filter screen 15 filters the return oil to remove impurities doped in the return oil, the filtered return oil is discharged back to the synchronous hydraulic pump station through an oil pipeline 4 for recycling, thereby realizing the filtering of the return oil, being convenient for the recycling of the return oil, avoiding the pipeline blockage by the impurities, improving the utilization rate of resources, two filter boxes 3 are fixed between the inner sides of four support legs 2 through fixing plates, the top ends of the filter boxes 3 are connected with a three-way valve 5 through pipelines, the bottom ends of the filter boxes 3 are connected with the oil pipeline 4, two ends of the three-way valve 5 are connected with oil return hoses 6 respectively communicated with two adjacent hydraulic cylinders 7, two sides of the inner wall of each filter box 3 are fixed with three clamping blocks 16 at equal intervals along the vertical direction, the filter screen 15 is clamped between the two opposite clamping blocks 16, and, make filter screen 15 can be twitch, use after a certain period when filter screen 15, the workman can open the chamber door of rose box 3, takes filter screen 15 out and clears up, realizes filter screen 15's regular cleaning to guarantee the filter effect.

Further, two buffer devices 14 are symmetrically installed on two sides of the upper surface of the base 1 and between two adjacent telescopic columns 8, each buffer device 14 includes a buffer plate 141, a connecting column 142, a buffer box 143, a moving plate 144 and springs 146, two springs 146 are symmetrically fixed at the bottom inside the buffer box 143 through a fixing seat, when the shield machine body 13 descends, the shield machine body 13 presses down the buffer plates 141, the buffer plates 141 press down the connecting column 142 through the connecting column 142, so that the connecting column 142 descends into the buffer box 143 through the moving plate 144 at the bottom of the connecting column, at this time, the moving plate 144 slides along the sliding groove 1431 through the sliding rails 1441 at two ends of the moving plate 144 and under the action of the springs 146, so as to buffer the shield machine body 13 at the top of the buffer plates 141, when the shield machine body 13 ascends, the moving plate 144 slides along the sliding groove 1431 through the sliding rails 1441 and ascends under the elastic action of the springs 146, and pushes the buffer plates 141 at, the side wall of the buffer plate 14 is attached to the outer wall of the shield machine body 13, so that the load of the telescopic column 8 for driving the support plate 11 to lift is reduced, the telescopic column 8 is prevented from being damaged due to long-term overload work, the top ends of the two springs 146 are connected with the bottom of the movable plate 144, the top end of the movable plate 144 is fixed with the connecting column 142, and the buffer plate 141 is installed at one end, opposite to one end of the movable plate 144, of the connecting column 142.

Specifically, the support plate 11 is set to be an arc-shaped structure matched with the outer wall of the shield machine body 13, and a rubber pad 12 matched with the section shape of the support plate 11 is bonded on the side wall of the support plate 11 adjacent to one side of the shield machine body 13, so that the side wall of the support plate 11 is attached to the outer wall of the shield machine body 13, and the support plate 11 is convenient to support the shield machine body 13.

It should be noted that, the rubber pad 12 is provided with the grooves 121 on a side wall of the support plate 11 at equal intervals, so that the side wall of the rubber pad 12 forms a protrusion to play a role in skid resistance, and the shield tunneling machine body 13 is prevented from sliding with the support plate 11.

Further, spout 1431 has been seted up to the inner wall bilateral symmetry of baffle-box 143, the both ends of moving plate 144 all are fixed with the slide rail 1441 with spout 1431 assorted, when spliced pole 142 passes through the elastic action shrink of spring 146 and advances inside the baffle-box 143, moving plate 144 passes through slide rail 1441 and slides along spout 1431 and goes up and down, it is spacing when can moving plate 144 goes up and down, improve the stability when moving plate 144 goes up and down along with spliced pole 142, the upper and lower both ends of spout 1431 inner wall all bond have with spout 1431 degree of depth assorted blotter 1432, blotter 1432 adopts rubber materials, can cushion slide rail 1441, prevent to take place rigid contact between the inside of slide rail 1441 and spout 1431.

Specifically, opposite corners of one end of the sliding rail 1441 away from the moving plate 144 are all transited by a circular arc chamfer to form a circular arc end 14411, so that the sliding rail 1441 can slide along the inner wall of the sliding groove 1431.

It should be noted that the buffer plate 141 is also configured to be an arc-shaped structure, the anti-slip pad 145 is bonded to the concave surface wall of the buffer plate 141, and the notches 1451 are equidistantly formed on the surface wall of the anti-slip pad 145, so that the anti-slip property of the buffer plate 141 can be improved, and the buffer plate 141 and the shield machine body 13 are prevented from sliding.

Further, two telescopic rods 147 are symmetrically arranged inside the buffer box 143, each of the two telescopic rods 147 is composed of an inner rod and an outer rod, the end portion of each inner rod is connected with the movable plate 144, the end portion of each outer rod is connected with the fixed seat, the two springs 146 are respectively sleeved outside the corresponding telescopic rods 147, when the springs 146 move along with the movable plates 144 to extend, the telescopic rods 147 extend along with the extension of the springs 146, so that the springs 146 are prevented from being bent in the extending process, and the buffer plate 141 can buffer the shield machine body 13 conveniently.

The utility model discloses a theory of operation and use flow: when the utility model is used, a worker firstly connects the oil inlet pipe and the oil delivery pipe 4 of the hydraulic cylinder 7 with the corresponding pipelines of the synchronous hydraulic pump station respectively, then the hydraulic oil is delivered into the hydraulic cylinder 7 through the oil inlet pipe of the hydraulic cylinder 7 under the action of the synchronous hydraulic pump station, the hydraulic cylinder 7 performs piston motion under the action of the oil pressure to drive the telescopic column 8 to lift, the telescopic column 8 drives the support plate 11 on the support post 10 to lift through the top plate 9 of the telescopic column 8, the four hydraulic cylinders 7 synchronously drive the telescopic column 8 to lift, thereby realizing the synchronous lifting of the four support plates 11, so as to lift the shield machine body 13, adjust the position, facilitate the shield machine body 13 to perform excavation operation, in the piston motion process of the hydraulic cylinder 7, the oil return is discharged through the oil return hose 6 and is discharged into the filter box 3 under the action of the three-way valve 5, and then flows into the filter screen 15 inside, the filter screen 15 filters the return oil, impurities doped in the return oil are removed, the filtered return oil is discharged back to the synchronous hydraulic pump station through the oil pipeline 4 for recycling, so that the return oil is filtered, recycling of the return oil is facilitated, the pipeline blockage caused by the impurities is avoided, and the resource utilization rate is improved, in addition, in the lifting process of the shield machine body 13, the buffer plate 141 is attached to the outer wall of the shield machine body 13 through the anti-slip mat 145, when the shield machine body 13 descends, the shield machine body 13 presses down the buffer plate 141, the buffer plate 141 presses down the connecting column 142 through the pressing down of the connecting column 141, so that the connecting column 142 descends into the buffer box 143 through the moving plate 144 at the bottom of the connecting column, at the moment, the moving plate 144 slides along the sliding groove 1431 through the sliding rails 1441 at the two ends of the moving plate and is buffered by the action of the spring 146, when the shield machine body 13 ascends, the moving plate 144 slides along the sliding groove 1431, and the buffer plate 141 connected with the top of the buffer plate through the connecting column 142 is pushed to ascend, so that the side wall of the buffer plate 14 is attached to the outer wall of the shield machine body 13, the load of the telescopic column 8 for driving the support plate 11 to ascend and descend is further reduced, the telescopic column 8 is prevented from being damaged due to long-term overload work, and the purpose of prolonging the service life of the lifting system is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A kind of lifting system used for shield machine, characterized by that: the shield tunneling machine comprises a base (1) and a shield tunneling machine body (13) located above the base, supporting legs (2) are fixed at four corners of the bottom of the base (1), hydraulic cylinders (7) are fixedly connected to the inner sides of the four supporting legs (2) at the bottom of the base (1) through bolts, telescopic columns (8) corresponding to the four hydraulic cylinders (7) one by one are installed at the top end of the base (1), a top plate (9) is welded at the top end of each telescopic column (8), a supporting column (10) is fixedly connected to the top of the top plate (9) through bolts, a supporting plate (11) is installed at the top end of each supporting column (10), the shield tunneling machine body (13) is placed at the top of each supporting plate (11) and is in contact with the side wall of each supporting plate (11), filter boxes (3) are arranged at two ends of the base (1) and between, two rose box (3) are all fixed between the inboard of four supporting legs (2) through the fixed plate, there are three-way valve (5) on the top of rose box (3) through the pipe connection, and the bottom of rose box (3) is connected with defeated oil pipe (4), the both ends of three-way valve (5) are connected with return oil hose (6) that are linked together with two adjacent pneumatic cylinders (7) respectively, the inner wall both sides of rose box (3) are all fixed with three fixture block (16) along vertical direction equidistance, and the block has filter screen (15) between two relative fixture block (16).

2. The shield tunneling machine lifting system according to claim 1, wherein: two buffer (14) are installed to the both sides of base (1) upper surface and all symmetry between being located adjacent two flexible post (8), buffer (14) are including buffer board (141), spliced pole (142), baffle-box (143), movable plate (144) and spring (146), the inside bottom of baffle-box (143) is fixed with two springs (146) through the fixing base symmetry, and the top of two springs (146) all is connected with the bottom of movable plate (144), the top of movable plate (144) is fixed with spliced pole (142), and buffer board (141) are installed for the one end of movable plate (144) to spliced pole (142).

3. The shield tunneling machine lifting system according to claim 1, wherein: the supporting plate (11) is of an arc structure matched with the outer wall of the shield machine body (13), and a rubber pad (12) matched with the section shape of the supporting plate (11) is bonded on the side wall of one side, adjacent to the shield machine body (13), of the supporting plate (11).

4. The shield tunneling machine lifting system according to claim 3, wherein: grooves (121) are formed in one side wall, opposite to the support plate (11), of the rubber pad (12) at equal intervals, and therefore the side wall of the rubber pad (12) forms a protrusion.

5. The shield tunneling machine lifting system according to claim 2, wherein: the buffer box is characterized in that sliding grooves (1431) are symmetrically formed in two sides of the inner wall of the buffer box (143), sliding rails (1441) matched with the sliding grooves (1431) are fixed at two ends of the moving plate (144), and buffer pads (1432) matched with the depth of the sliding grooves (1431) are bonded at the upper end and the lower end of the inner wall of the sliding grooves (1431).

6. The shield tunneling machine lifting system according to claim 5, wherein: the opposite angles of one end of the sliding rail (1441) far away from the moving plate (144) are in arc chamfer transition to form an arc end (14411).

7. The shield tunneling machine lifting system according to claim 2, wherein: the buffer plate (141) is also arranged to be of an arc-shaped structure, the anti-skid pad (145) is bonded on the concave surface wall of the buffer plate (141), and notches (1451) are formed in the surface wall of the anti-skid pad (145) at equal distances.

8. The shield tunneling machine lifting system according to claim 2, wherein: two telescopic rods (147) are symmetrically arranged inside the buffer box (143), each telescopic rod (147) consists of an inner rod and an outer rod, the end part of each inner rod is connected with the movable plate (144), the end part of each outer rod is connected with the fixed seat, and the two springs (146) are sleeved outside the corresponding telescopic rods (147) respectively.